Inner core accessory structure of double-end telescopic brush

Abstract

The utility model discloses an inner core accessory structure of a double-end telescopic brush, and belongs to the technical field of double-end telescopic brush production. The double-end telescopic brush inner core accessory structure comprises a fixing rod fixedly arranged in a double-end telescopic brush shell and mounting rods symmetrically and fixedly mounted at the two ends of the fixing rod, located at the two end openings of the double-end telescopic brush shell and used for assembling cosmetic brushes. The extending parts are symmetrically arranged at the two ends of the fixing rod and the two ends of the double-head telescopic brush shell and used for protecting the cosmetic brush in a telescopic mode, the notches are symmetrically formed in the ends, close to the fixing rod, of the mounting rods, and the elastic protruding blocks are arranged in the notches, connected with the fixing rod and used for limiting the moving positions of the extending parts. According to the inner core accessory structure of the double-end telescopic brush, the fixing rod, the mounting rod, the extending part, the notch and the elastic convex block are arranged, so that the double-end telescopic brush is more convenient to use and durable, meanwhile, the structure composition is simple, and the whole assembling process can be simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of double-head telescopic brush production, in particular to a double-head telescopic brush inner core accessory structure. Background Art

[0002] The double-ended telescopic brush is a tool designed for makeup, with a unique telescopic and inner core accessory structure. The feature of this brush is that the user can adjust it according to the needs, and the double-ended design makes it able to meet a variety of makeup needs.

[0003] The Chinese utility model patent with publication number CN210747865U discloses a multifunctional double-headed telescopic makeup brush with a cover. The multifunctional double-headed telescopic makeup brush with a cover in this technology can facilitate the user to switch between a large brush or a small brush at will according to the needs of makeup. However, the telescopic inner core accessory structure used in the multifunctional double-headed telescopic makeup brush with a cover is directly fixedly connected to the large and small brushes. In daily use, repeated stretching and contraction will cause great pressure on the connection between the telescopic inner core and the brush, which will cause wear and looseness of the connection, thereby affecting the smoothness and stability of the extension and contraction, and reducing durability.

[0004] Therefore, a double-headed telescopic brush inner core accessory structure with high durability is needed to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The utility model provides a double-head telescopic brush inner core accessory structure, aiming to solve the problem that the telescopic inner core accessory structure in the prior art proposed in the background technology is directly fixedly connected to large and small brushes. In daily use, this connection method is prone to wear and looseness at the connection, affecting its durability.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-headed telescopic brush inner core accessory structure, comprising a fixing rod fixedly arranged in the double-headed telescopic brush shell, a mounting rod symmetrically fixedly installed at both ends of the fixing rod and located at the two port positions of the double-headed telescopic brush shell for assembling a makeup brush, an extension part symmetrically arranged at both ends of the fixing rod and the double-headed telescopic brush shell for telescopically protecting the makeup brush, a notch symmetrically opened on the mounting rod close to one end of the fixing rod, and an elastic protrusion arranged in the notch and connected to the fixing rod for limiting the moving position of the extension part; the combined design of the fixing rod, the mounting rod, the extension part, the notch and the elastic protrusion makes the use of the makeup brush more convenient and durable. At the same time, the double-headed telescopic brush inner core accessory structure has a simple structural composition and can simplify the entire assembly process.

[0009] In order to ensure the smoothness of telescopic sliding of the extension part and the durability of use, the extension part includes a sleeve slidably sleeved on the fixed rod and penetrating the port of the double-headed telescopic brush shell for protecting the surface of the makeup brush, an annular stopper fixedly sleeved on the sleeve and located on the outside of the port of the double-headed telescopic brush shell, and a shrinking ring fixedly connected to the end of the sleeve away from the annular stopper and located in the double-headed telescopic brush shell, and the elastic protrusion contacts the inner wall of the sleeve away from the notch; the sleeve is slidably sleeved on the fixed rod, so that the user only needs to push the sleeve to retract it into the double-headed telescopic brush shell or slide it out of the double-headed telescopic brush shell to easily and quickly expose the makeup brush connected to the mounting rod for use and protection, without repeatedly pushing the makeup brush, thereby increasing the service life of the makeup brush. At the same time, the design of the shrinking ring and the annular stopper can prevent the sleeve from sliding off the fixed rod and the double-headed telescopic brush shell.

[0010] Preferably, in order to further improve the convenience of assembly, a raised ring abutting against the inner wall of the double-headed telescopic brush housing is fixedly installed on the fixed rod, and the raised ring is located between the two sleeves; the design of the raised ring can provide a positioning point for the installation of the fixed rod, thereby greatly simplifying the alignment steps in the assembly process and improving the efficiency and accuracy of the assembly.

[0011] Preferably, in order to ensure that the diameter of the sleeve is not larger than the diameter of the raised ring; when the two sleeves slide on the fixed rod, since their diameters are not larger than the diameter of the raised ring, the raised ring can serve as an effective blocking point, thereby preventing the two sleeves from being excessively retracted into the double-headed telescopic brush housing, thereby increasing safety in use.

[0012] Preferably, in order to further prevent the sleeve from excessively sliding and being retracted into the double-headed telescopic brush housing, the diameter of the annular stopper is larger than the diameter of the double-headed telescopic brush housing; since the diameter of the annular stopper is larger than the double-headed telescopic brush housing, it can effectively prevent the sleeve from excessively being retracted into the double-headed telescopic brush housing, and at the same time, the diameter design of the annular stopper can facilitate the user to manually press the annular stopper to achieve free sliding of the sleeve.

[0013] Preferably, in order to prevent the sleeve from sliding excessively out of the outer shell of the double-headed telescopic brush, the diameter of the shrinking ring is smaller than the diameter of the sleeve; since the diameter of the shrinking ring is smaller than the diameter of the sleeve, when the shrinking ring slides with the sleeve to the elastic protrusion, it can be effectively blocked to prevent excessive sliding and detachment from the fixing rod.

[0014] Preferably, in order to ensure that the shrink ring does not affect the sliding of the sleeve on the fixed rod, the diameter of the shrink ring is not less than the diameter of the fixed rod; since the diameter of the shrink ring is not less than the diameter of the fixed rod, the shrink ring can easily slide on the fixed rod without being subject to excessive friction resistance.

[0015] (III) Beneficial effects

[0016] The double-headed telescopic brush inner core accessory structure makes the makeup brush more convenient and durable by providing a fixing rod, a mounting rod, an extension part, a notch and an elastic protrusion. At the same time, the double-headed telescopic brush inner core accessory structure has a simple structure and can simplify the entire assembly process.

[0017] The double-headed telescopic brush inner core accessory structure is provided with an extension portion consisting of a sleeve, an annular stopper and a shrinking ring, so that the user only needs to push the sleeve to retract it into the double-headed telescopic brush shell or slide it out of the double-headed telescopic brush shell to easily and quickly expose the makeup brush connected to the mounting rod for use and protection, without the need to repeatedly push the makeup brush, thereby increasing the service life of the makeup brush. At the same time, the design of the shrinking ring and the annular stopper can prevent the sleeve from sliding off the fixed rod and the double-headed telescopic brush shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of the inner core accessory of a double-headed telescopic brush Figure 1 ;

[0019] Figure 2 A schematic diagram of the structure of the inner core accessory of a double-headed telescopic brush Figure 2 ;

[0020] Figure 3 It is an assembly drawing of the double-head telescopic brush inner core accessory structure and the double-head telescopic brush outer shell.

[0021] In the figure:

[0022] 1. Fixing rod; 11. Raised ring;

[0023] 2. Mounting rod; 21. Notch;

[0024] 3. extension portion; 31. sleeve; 32. annular stopper; 33. shrink ring;

[0025] 4. Elastic bump. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of 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 are within the scope of protection of the utility model.

[0027] The utility model provides a double-head telescopic brush inner core accessory structure, such as Figure 1-Figure 3 As shown, the double-headed telescopic brush inner core accessory structure includes a fixed rod 1 fixedly arranged in the double-headed telescopic brush shell, a mounting rod 2 symmetrically fixedly installed at both ends of the fixed rod 1 and located at the two ports of the double-headed telescopic brush shell for assembling a makeup brush, an extension part 3 symmetrically arranged at both ends of the fixed rod 1 and the double-headed telescopic brush shell for telescopic protection of the makeup brush, a notch 21 symmetrically opened at one end of the mounting rod 2 close to the fixed rod 1, and an elastic protrusion 4 arranged in the notch 21 and connected to the fixed rod 1 for limiting the movement position of the extension part 3; the extension part 3 includes a sleeve 31 slidably sleeved on the fixed rod 1 and passing through the port of the double-headed telescopic brush shell for protecting the surface of the makeup brush, an annular stopper 32 fixedly sleeved on the sleeve 31 and located outside the port of the double-headed telescopic brush shell, and a shrink ring 33 fixedly connected to the end of the sleeve 31 away from the annular stopper 32 and located in the double-headed telescopic brush shell, and the elastic protrusion 4 contacts the inner wall of the sleeve 31 away from the notch 21.

[0028] When in use, after the double-headed telescopic brush inner core accessory structure is assembled with the double-headed telescopic brush shell, the sleeves 31 at both ends are kept stretched and cover the makeup brushes at both ends. When the makeup brushes at one end or both ends need to be used, the user only needs to hold the annular stopper 32 on the sleeve 31 and push the sleeve 31 to slide the sleeve 31 back into the double-headed telescopic brush shell, so that the makeup brush fixed on the mounting rod 2 can be exposed and used. When holding the annular stopper 32 and pushing the sleeve 31 back into the double-headed telescopic brush shell, the sleeve 31 will keep squeezing the symmetrical elastic protrusion 4 set at one end of the corresponding mounting rod 2, so that the elastic protrusion 4 is squeezed into the corresponding notch 21. When the annular stopper 32 is held, the sleeve 31 will be pushed back into the double-headed telescopic brush shell. After the block 32 contacts the port of the double-headed telescopic brush housing, the user releases his hand and stops pushing. The symmetrical elastic protrusions 4 can rebound from the corresponding notches 21 and contact the inner wall of the sleeve 31 under the recovery action of their elastic force, thereby limiting the sliding and retracted sleeve 31. When the makeup brush is not in use, the user can also hold the annular stopper 32 and pull the sleeve 31. At this time, the elastic protrusion 4 will be squeezed and retracted into the corresponding notch 21. When the sleeve 31 completely covers the makeup brush, the shrink ring 33 reaches the corresponding position of the elastic protrusion 4. At this time, after the user stops sliding, the elastic protrusion 4 will block the shrink ring 33 under the action of its elastic rebound, so that the sleeve 31 can be stably extended and cover the surface of the makeup brush.

[0029] Specifically, a raised ring 11 is fixedly installed on the fixed rod 1 and abuts against the inner wall of the double-headed telescopic brush housing. The raised ring 11 is located between the two sleeves 31. Through the positioning setting of the raised ring 11, the fixed rod 1 can be smoothly inserted into the accurate position inside the double-headed telescopic brush housing, which greatly simplifies the alignment steps in the assembly process and improves the efficiency and accuracy of the assembly.

[0030] Furthermore, the diameter of the sleeve 31 is not larger than the diameter of the raised ring 11; when the user pushes the sleeve 31 to retract into the double-headed telescopic brush housing, since the diameter of the sleeve 31 is not larger than the diameter of the raised ring 11, the sleeve 31 will be blocked by the raised ring 11, thereby preventing excessive sliding and being retracted into the double-headed telescopic brush housing.

[0031] Furthermore, the diameter of the annular stopper 32 is larger than the diameter of the double-headed telescopic brush housing; since the diameter of the annular stopper 32 is larger than the diameter of the double-headed telescopic brush housing, when the sleeve 31 is gently pushed back into the double-headed telescopic brush housing, it can not only be blocked by the raised ring 11, but also by the annular stopper 32 arranged externally, thereby further preventing the sleeve 31 from being excessively retracted into the double-headed telescopic brush housing. At the same time, since the diameter of the annular stopper 32 is larger, it can help the user to hold the annular stopper 32 and push the sleeve 31.

[0032] Furthermore, the diameter of the shrinking ring 33 is smaller than the diameter of the sleeve 31; since the elastic protrusion 4 is used to limit the sliding position of the sleeve 31, and the diameter of the shrinking ring 33 is smaller than the diameter of the sleeve 31, when the sleeve 31 is pulled out of the double-headed telescopic brush housing and the shrinking ring 33 is moved to the elastic protrusion 4, the elastic protrusion 4 can effectively block the shrinking ring 33, thereby preventing the sleeve 31 from sliding excessively out of the double-headed telescopic brush housing.

[0033] In order to ensure that the shrink ring 33 does not affect the sliding of the sleeve 31 on the fixed rod 1, the diameter of the shrink ring 33 is not less than the diameter of the fixed rod 1; since the diameter of the shrink ring 33 is not less than the diameter of the fixed rod 1, the shrink ring 33 can easily slide on the fixed rod 1 without being subject to excessive friction resistance.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Double-head telescopic brush inner core accessory structure, characterized by: The double-headed telescopic brush comprises a fixing rod (1) fixedly arranged in the double-headed telescopic brush housing, a mounting rod (2) symmetrically fixedly arranged at both ends of the fixing rod (1) and located at two ports of the double-headed telescopic brush housing for assembling a cosmetic brush, an extension part (3) symmetrically arranged at both ends of the fixing rod (1) and the double-headed telescopic brush housing for telescopically protecting the cosmetic brush, a notch (21) symmetrically arranged at one end of the mounting rod (2) close to the fixing rod (1), and an elastic protrusion (4) arranged in the notch (21) and connected to the fixing rod (1) for limiting the moving position of the extension part (3); The extension portion (3) comprises a sleeve (31) slidably sleeved on the fixed rod (1) and penetrating through the port of the double-headed telescopic brush shell for protecting the surface of the cosmetic brush, an annular stopper (32) fixedly sleeved on the sleeve (31) and located outside the port of the double-headed telescopic brush shell, and a shrink ring (33) fixedly connected to one end of the sleeve (31) away from the annular stopper (32) and located inside the double-headed telescopic brush shell, and the elastic protrusion (4) contacts the inner wall of the sleeve (31) on the side away from the notch (21).

2. The double-headed telescopic brush inner core accessory structure according to claim 1, characterized in that: A raised ring (11) is fixedly mounted on the fixed rod (1) and abuts against the inner wall of the double-head telescopic brush housing. The raised ring (11) is located between the two sleeves (31).

3. The double-headed telescopic brush inner core accessory structure according to claim 2 is characterized in that: The diameter of the sleeve (31) is not greater than the diameter of the raised ring (11).

4. The double-headed telescopic brush inner core accessory structure according to claim 3 is characterized in that: The diameter of the annular stopper (32) is greater than the diameter of the double-head telescopic brush housing.

5. The double-headed telescopic brush inner core accessory structure according to claim 3 is characterized in that: The diameter of the shrink ring (33) is smaller than the diameter of the sleeve (31).

6. The double-headed telescopic brush inner core accessory structure according to claim 5, characterized in that: The diameter of the shrink ring (33) is not less than the diameter of the fixing rod (1).

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