Cosmetic brush with replaceable head

Abstract

The utility model discloses a cosmetic brush convenient to replace brush head, including brush handle and connecting seat, the top of brush handle is provided with the insertion slot, the inside wall of insertion slot is fixedly connected with locking mechanism. The utility model discloses through the setting of brush handle, connecting seat, locking mechanism and limiting mechanism, when replacing the brush head, first, the limiting ring of connecting seat bottom is aligned and inserted into the limiting slot of brush handle top, realizes the primary positioning and the anti -deflection, and the bottom connecting pipe on the down -pressing column of connecting seat is extruded sleeve downward, and the first spring is compressed and makes the sleeve slide in the moving cavity, simultaneously drives three groups of clamping blocks to slide, rotates and finally is clamped into below L arc block, the resilience of first spring pushes sleeve upward at this moment, makes the clamping block and L arc block closely abut, forms the stable locking, thereby through limiting mechanism, the alignment accuracy is ensured, and through locking mechanism, reliable locking is realized.

Description

Technical Field

[0001] This utility model relates to the field of makeup brush technology, specifically a makeup brush with an easy-to-replace brush head. Background Technology

[0002] Makeup is the process of using cosmetics and tools, following prescribed steps and techniques, to enhance, depict, and refine the face, features, and other parts of the body. This aims to improve visual appeal, adjust color and shape, conceal imperfections, and express charm. Makeup brushes are among the most commonly used tools in makeup; there are many types available, and a combination can be chosen based on individual makeup habits for everyday use.

[0003] Patent document CN213550305U discloses a makeup brush with easily replaceable brush heads, including a handle. The handle has a screw internally, with a connecting block fixedly connected to the top of the screw. The connecting block has a groove internally, and a connecting rod is disposed within the groove. Brush bristles are glued to the upper side of the connecting rod. Receiving grooves are formed at both ends of the connecting rod, and a telescopic spring is horizontally connected inside each receiving groove. An insert is provided inside each receiving groove, with the inner end of the insert connected to the end of the telescopic spring. A connecting groove is formed inside the connecting block at a corresponding position, and the inner wall of the connecting groove fits against the outer surface of the insert. This invention, with its brush bristles and inserts, allows for the reuse of the brush handle, reducing material waste. The inclusion of a screw sleeve and a knob enhances the user's makeup efficiency.

[0004] However, this makeup brush uses two sets of telescopic springs to quickly change the brush head. When changing the brush head, there may be problems such as loose connection, shaking or detachment. In addition, the brush head is straight, and the angle is very stiff when applying eyeshadow and eyeliner, which makes it somewhat inconvenient to use. Utility Model Content

[0005] The main purpose of this invention is to provide a makeup brush with an easy-to-replace brush head, which can effectively solve the problems of loose connection, shaking or detachment that may occur when replacing the brush head in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A makeup brush with easily replaceable brush heads includes a handle and a connecting base. The top of the handle has a insertion groove, and a locking mechanism is fixedly connected to the inner wall of the insertion groove. A side tube is fixedly connected above the connecting base, and a rotating mechanism is fitted inside the side tube.

[0008] The locking mechanism includes three sets of L-shaped arc blocks fixedly connected to the inner wall of the insertion slot. A sleeve is slidably connected to the inner bottom wall of the insertion slot. A first spring is installed inside the sleeve. Each of the three sets of L-shaped arc blocks has a locking block below it. A connecting pipe is fixedly connected to the inner wall of the locking block, and a downward pressure column is fixedly connected to the bottom of the connecting pipe.

[0009] The rotating mechanism includes a second spring sleeved inside the side cylinder. A gear is threadedly connected to the front of the side cylinder. A side gear is fixedly connected to the rear side of the gear. An outer connecting cylinder is snapped onto one side of the side gear. An outer cover is threadedly connected to the front of the outer connecting cylinder.

[0010] Preferably, the connecting seat is installed at the top of the brush handle, and a limiting mechanism is provided at the top of the brush handle.

[0011] Preferably, the limiting mechanism includes a limiting groove formed at the top of the brush handle, and a limiting ring is inserted into the limiting groove.

[0012] Preferably, the limiting ring is fixedly connected to the bottom of the connecting seat, and the size of the limiting ring is adapted to the size of the limiting groove.

[0013] Preferably, the inner bottom wall of the insertion slot has a movable cavity, the sleeve is slidably connected to the inside of the movable cavity, and an anti-detachment ring is fixedly connected to the bottom outer side of the sleeve.

[0014] Preferably, each pair of L-shaped arc blocks has a sliding hole on the opposite side, the connecting pipe is fixedly connected to the bottom of the connecting seat, and the pressing column is located above the sleeve.

[0015] Preferably, a through hole is provided on the rear side of the outer connecting cylinder, the gear is connected to the surface of the outer connecting cylinder, a cross groove is provided on the front side of the gear, and several snap-fit ​​interfaces are provided on the inner side wall of the outer connecting cylinder, and the side gear is snapped into the inside of the snap-fit ​​interfaces.

[0016] Preferably, a brush head is fixedly connected to the surface of the outer connecting cylinder, an indicator arrow is provided on the surface of the outer cover, and scale lines are provided on the front of the side cylinder.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. This utility model, through the setting of a brush handle, connecting seat, locking mechanism and limiting mechanism, when replacing the brush head, firstly aligns the limiting ring at the bottom of the connecting seat with the limiting groove at the top of the brush handle to achieve initial positioning and anti-deflection. Pressing down the connecting seat causes the pressing column on the bottom connecting tube to press down on the sleeve, compressing the first spring and causing the sleeve to slide down in the moving cavity. At the same time, it drives the three sets of locking blocks to slide down along the sliding hole in the middle of the L-shaped block, rotate and finally lock into the bottom of the L-shaped block. At this time, the rebound force of the first spring pushes the sleeve upward, so that the locking blocks and the L-shaped block are tightly abutted together to form a stable lock. Thus, the alignment accuracy is ensured by the limiting mechanism and the reliable locking and fixing is achieved by the locking mechanism, effectively avoiding the problems of loose connection, shaking or detachment that may occur when replacing the brush head.

[0019] 2. This utility model, through the arrangement of a side cylinder, a brush head, and a rotating mechanism, allows for precise adjustment of the brush head angle. First, the outer cover is pressed towards the side cylinder, compressing the second spring and causing the outer connecting cylinder to move backward while simultaneously disengaging from the side gear. Then, the outer cover is rotated, driving the outer connecting cylinder and the fixed brush head to rotate synchronously for precise angle adjustment. After releasing the outer cover, the rebound force of the second spring pushes the outer connecting cylinder forward, causing it to re-engage and lock with the side gear. This achieves precise adjustment and reliable locking of the brush head angle, flexibly adapting to different makeup needs and effectively avoiding the inconvenience caused by the inability to adjust the angle during use. Attached Figure Description

[0020] Figure 1 This is an overall view of the present utility model;

[0021] Figure 2 This is a diagram of the locking mechanism of this utility model;

[0022] Figure 3 This is a diagram of the rotating mechanism of this utility model;

[0023] Figure 4 This is a diagram of the limiting mechanism of this utility model.

[0024] In the diagram: 1. Brush handle; 2. Connecting seat; 3. Insertion groove; 4. Locking mechanism; 401. L-shaped block; 402. Sleeve; 403. First spring; 404. Locking block; 405. Connecting pipe; 406. Pressing column; 5. Side cylinder; 6. Rotating mechanism; 601. Second spring; 602. Gear component; 603. Side gear; 604. Outer connecting cylinder; 605. Outer cover; 7. Limiting mechanism; 701. Limiting groove; 702. Limiting ring; 8. Moving cavity; 9. Anti-detachment ring; 10. Brush head; 11. Indicator arrow. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1-4 This utility model provides a technical solution: a makeup brush with an easy-to-replace brush head, including a brush handle 1 and a connecting seat 2. The top of the brush handle 1 is provided with an insertion groove 3, and a locking mechanism 4 is fixedly connected to the inner side wall of the insertion groove 3. The locking mechanism 4 achieves reliable locking and fixation, effectively avoiding the problem of loose connection, shaking or detachment that may occur when replacing the brush head. A side tube 5 is fixedly connected to the top of the connecting seat 2, and a rotating mechanism 6 is sleeved inside the side tube 5. The rotating mechanism 6 achieves precise adjustment and reliable locking of the angle of the brush head 10, and plays a flexible role in adapting to different makeup needs.

[0027] Please see Figure 2 The locking mechanism 4 includes three sets of L-shaped blocks 401 fixedly connected to the inner wall of the insertion groove 3. A sleeve 402 is slidably connected to the inner bottom wall of the insertion groove 3. A first spring 403 is provided inside the sleeve 402. A locking block 404 is engaged below each of the three sets of L-shaped blocks 401. A connecting pipe 405 is fixedly connected to the inner wall of the locking block 404. A pressing column 406 is fixedly connected to the bottom of the connecting pipe 405. A sliding hole is provided on the opposite side of every two sets of L-shaped blocks 401. The connecting pipe 405 is fixedly connected to the bottom of the connecting seat 2. The pressing column 406 is located above the sleeve 402.

[0028] When installing the brush head 10, press down the connecting seat 2 so that the pressing post 406 at the bottom of the connecting tube 405 is inserted into the insertion slot 3 and squeezes the sleeve 402 downward, forcing the sleeve 402 to compress the internal first spring 403 and slide along the moving cavity 8. At the same time, the three sets of locking blocks 404 fixed on the connecting tube 405 move downward and slide down along the sliding hole in the middle of the L-arc block 401 to its bottom. When the locking block 404 passes the lowest point of the L-arc block 401, rotate the connecting seat 2. At this time, the compressed first spring 403 pushes the sleeve 402 and the pressing post 406 to rebound, so that the locking block 404 is firmly locked under the L-arc block 401.

[0029] Please see Figure 3 The rotating mechanism 6 includes a second spring 601 sleeved inside the side cylinder 5. A gear 602 is threadedly connected to the front of the side cylinder 5. A side gear 603 is fixedly connected to the rear side of the gear 602. An outer connecting cylinder 604 is snapped onto one side of the side gear 603. An outer cover 605 is threadedly connected to the front of the outer connecting cylinder 604.

[0030] When adjusting the brush head 10, first press the outer cover 605 towards the side cylinder 5, compressing the second spring 601 to move the outer connecting cylinder 604 backward while disengaging it from the side gear 603. Then rotate the outer cover 605 to drive the outer connecting cylinder 604 and the fixed brush head 10 to rotate synchronously for precise angle adjustment. After releasing the outer cover 605, the rebound force of the second spring 601 pushes the outer connecting cylinder 604 forward, causing it to re-engage and lock with the side gear 603.

[0031] Please see Figure 4 The connecting seat 2 is installed on the top of the brush handle 1. A limiting mechanism 7 is provided on the top of the brush handle 1. The limiting mechanism 7 includes a limiting groove 701 provided on the top of the brush handle 1. A limiting ring 702 is inserted into the inside of the limiting groove 701. The limiting ring 702 is fixedly connected to the bottom of the connecting seat 2. The size of the limiting ring 702 is adapted to the size of the limiting groove 701.

[0032] When installing the brush head 10, first align the limiting ring 702 at the bottom of the connecting seat 2 with the limiting groove 701 at the top of the brush handle 1 and insert it to achieve preliminary radial positioning. This step plays a key role in pre-alignment and circumferential limiting, ensuring that the connecting seat 2 and the brush handle 1 always maintain the correct relative position during the subsequent pressing and locking process, and will not rotate or shift.

[0033] Please see Figure 2 The inner bottom wall of the insertion groove 3 is provided with a movable cavity 8, and the sleeve 402 is slidably connected to the inside of the movable cavity 8. An anti-detachment ring 9 is fixedly connected to the bottom outer side of the sleeve 402.

[0034] When the pressing column 406 is pressed down and pushes the sleeve 402 downward, the sleeve 402 slides smoothly in the vertical direction inside the moving cavity 8, providing guidance and space for the compression of the first spring 403. At the same time, the anti-detachment ring 9 fixed to the bottom of the sleeve 402 moves downward, but its outer diameter is larger than the opening of the moving cavity 8. When the sleeve 402 slides to the upper end of the stroke, the anti-detachment ring 9 will abut against the top structure inside the moving cavity 8 to form a mechanical limit.

[0035] Please see Figure 2 The outer connecting cylinder 604 has a through hole on its rear side, and the gear component 602 is connected to the surface of the outer connecting cylinder 604. The gear component 602 has a cross groove on its front side, and the inner side wall of the outer connecting cylinder 604 has several locking interfaces, and the side gear 603 is locked into the inside of the locking interfaces.

[0036] Insert a tool into the cross groove on the front of gear 602 and rotate it to drive gear 602 to be threadedly connected to the front of side cylinder 5.

[0037] Please see Figure 2A brush head 10 is fixedly connected to the surface of the outer connecting cylinder 604, an indicator arrow 11 is provided on the surface of the outer cover 605, and scale lines are provided on the front of the side cylinder 5.

[0038] When the outer cover 605 is rotated to adjust the angle of the brush head 10, the user can observe the scale line value on the front of the side cylinder 5 pointed to by the indicator arrow 11 on the surface of the outer cover 605, which intuitively and accurately indicates the current rotation angle of the brush head 10.

[0039] Working principle: When replacing the brush head 10, first align the limiting ring 702 at the bottom of the connecting seat 2 and insert it into the limiting groove 701 at the top of the brush handle 1 to achieve initial positioning and anti-deflection. Press down the connecting seat 2 so that the pressing column 406 on the bottom connecting tube 405 presses the sleeve 402 downward, compresses the first spring 403 and causes the sleeve 402 to slide down in the moving cavity 8. At the same time, it drives the three sets of locking blocks 404 to slide down along the sliding hole in the middle of the L arc block 401, rotate and finally lock into the lower part of the L arc block 401. At this time, the rebound force of the first spring 403 pushes the sleeve 402 upward, so that the locking block 404 and the L arc block 401 are tightly abutted together to form a stable lock.

[0040] When adjusting the angle of the brush head 10, first press the outer cover 605 towards the side cylinder 5 to compress the second spring 601, causing the outer connecting cylinder 604 to move backward and disengage from the side gear 603. Then rotate the outer cover 605 to drive the outer connecting cylinder 604 and the fixed brush head 10 to rotate synchronously to precisely adjust the angle. After releasing the outer cover 605, the rebound force of the second spring 601 pushes the outer connecting cylinder 604 forward, causing it to re-engage and lock with the side gear 603. The above is the working process of the entire device. All contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A makeup brush with an easily replaceable brush head, comprising a brush handle (1) and a connecting base (2), characterized in that: The top of the brush handle (1) is provided with a insertion groove (3), and a locking mechanism (4) is fixedly connected to the inner side wall of the insertion groove (3). A side cylinder (5) is fixedly connected above the connecting seat (2), and a rotating mechanism (6) is sleeved inside the side cylinder (5). The locking mechanism (4) includes three sets of L-shaped blocks (401) fixedly connected to the inner wall of the insertion groove (3). A sleeve (402) is slidably connected to the inner bottom wall of the insertion groove (3). A first spring (403) is provided inside the sleeve (402). A locking block (404) is engaged below each of the three sets of L-shaped blocks (401). A connecting pipe (405) is fixedly connected to the inner wall of the locking block (404). A pressing column (406) is fixedly connected to the bottom of the connecting pipe (405). The rotating mechanism (6) includes a second spring (601) sleeved inside the side cylinder (5). A gear (602) is threadedly connected to the front of the side cylinder (5). A side gear (603) is fixedly connected to the rear side of the gear (602). An outer connecting cylinder (604) is snapped onto one side of the side gear (603). An outer cover (605) is threadedly connected to the front of the outer connecting cylinder (604).

2. A makeup brush with an easily replaceable brush head according to claim 1, characterized in that: The connecting seat (2) is installed at the top of the brush handle (1), and a limiting mechanism (7) is provided at the top of the brush handle (1).

3. A makeup brush with an easily replaceable brush head according to claim 2, characterized in that: The limiting mechanism (7) includes a limiting groove (701) opened at the top of the brush handle (1), and a limiting ring (702) is inserted into the inside of the limiting groove (701).

4. A makeup brush with an easily replaceable brush head according to claim 3, characterized in that: The limiting ring (702) is fixedly connected to the bottom of the connecting seat (2), and the size of the limiting ring (702) is adapted to the size of the limiting groove (701).

5. A makeup brush with an easily replaceable brush head according to claim 1, characterized in that: The inner bottom wall of the insertion groove (3) is provided with a movable cavity (8), and the sleeve (402) is slidably connected to the inside of the movable cavity (8). The bottom outer side of the sleeve (402) is fixedly connected with an anti-detachment ring (9).

6. A makeup brush with an easily replaceable brush head according to claim 1, characterized in that: Each pair of L-shaped blocks (401) has a sliding hole on the opposite side, the connecting pipe (405) is fixedly connected to the bottom of the connecting seat (2), and the pressing column (406) is located above the sleeve (402).

7. A makeup brush with an easily replaceable brush head according to claim 1, characterized in that: The outer connecting cylinder (604) has a through hole on its rear side, the gear component (602) is connected to the surface of the outer connecting cylinder (604), the gear component (602) has a cross groove on its front side, the inner wall of the outer connecting cylinder (604) has several locking interfaces, and the side gear (603) is locked inside the locking interface.

8. A makeup brush with an easily replaceable brush head according to claim 1, characterized in that: A brush head (10) is fixedly connected to the surface of the outer connecting cylinder (604), an indicator arrow (11) is provided on the surface of the outer cover (605), and a scale line is provided on the front of the side cylinder (5).

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