Rotary extrusion type multifunctional double-end cosmetic brush

Abstract

A rotary extrusion type multifunctional double-head cosmetic brush comprises a rotary seat, the upper side and the lower side of the rotary seat are each provided with a brush head structure, each brush head structure comprises a brush body container, the rotary seat is rotationally connected with the brush body containers, a spiral sleeve is fixedly arranged in the rotary seat, and a push rod is arranged in the spiral sleeve. A sealing piston is fixedly connected to the upper side of the push rod, a reverse rotation brake is arranged between the rotating base and the sealing piston, elastic buckles are arranged on the lower side of the reverse rotation brake at intervals in the circumferential direction, the side faces of the first sides of the elastic buckles are arranged to be first curved surfaces, and the side faces of the second sides of the elastic buckles are arranged to be first vertical planes. At least two clamping ribs are arranged on the upper side of the rotating seat at intervals in the circumferential direction, the side face of the first side of each clamping rib is arranged to be a second vertical plane, and the side face of the second side of each clamping rib is arranged to be a second curved surface. And when the rotating seat rotates reversely, the first vertical plane of the reverse rotation brake is matched with the second vertical plane of the rotating seat, so that the rotating seat is prevented from rotating reversely.

Description

Technical Field

[0001] This utility model relates to the field of human life necessities, and in particular to cosmetic containers, especially a rotary extrusion type multifunctional double-ended cosmetic pen. Background Technology

[0002] As people's living standards continue to improve, they are paying more and more attention to their outward appearance and inner qualities, leading to a surge in the popularity of makeup. Makeup is generally considered a sign of respect and courtesy towards oneself and others. For liquid cosmetics (highlighter, concealer, liquid blush, eyeshadow, etc.), makeup pens are used for storage and application. Current technology uses a rotating base, a push rod, and a piston. Rotating the base causes the push rod to push the piston upwards, extruding the product from the pen tip. However, after use, accidental activation can cause the rotating base to rotate in the opposite direction, resulting in the push rod moving in the opposite direction. This necessitates the user to readjust the piston position to extrude the product, requiring repeated rotation and resetting. It's difficult to control the extrusion volume by maintaining a fixed rotation angle, and the repeated up-and-down sliding of the piston accelerates wear on the sealing structure. Furthermore, existing cosmetic pens have a single-head structure and limited functionality. Utility Model Content

[0003] The purpose of this invention is to provide a rotary extrusion type multifunctional double-ended makeup pen to solve the technical problem that the rotating base in the prior art is prone to reverse rotation.

[0004] This utility model provides a rotary extrusion type multifunctional double-ended cosmetic pen, including a rotating base, with a pen tip structure respectively provided on the upper and lower sides of the rotating base. Each pen tip structure includes a pen body container. The rotating base is rotatably connected to the pen body container. A spiral sleeve is fixedly installed in the rotating base. The inner wall of the spiral sleeve is provided with an internal thread. A push rod is installed in the spiral sleeve. The outer wall of the push rod is provided with an external thread, which mates with the internal thread. A sealing piston is fixedly connected to the upper side of the push rod. A pen tip connector is provided above the sealing piston. The pen tip connector is fixedly connected to the pen body container. A flexible applicator is provided on the upper side of the pen tip connector. The flexible applicator has several material holes. Two sealing protrusions are axially spaced on the outer periphery of the sealing piston. The sealing protrusions mate with the inner wall of the pen body container. The rotating base and A reversing brake is provided between the sealed pistons. The reversing brake includes an annular component. The reversing brake is sleeved on the outer circumference of the push rod through the annular component. The annular component is fixedly connected to the pen body container. The push rod and the reversing brake form an axial sliding pair. Two elastic buckles are provided at intervals along the circumferential direction on the lower side of the annular component. The elastic buckles are cantilever structures. The side surface of the first side of the elastic buckle is set as a first curved surface. The side surface of the second side of the elastic buckle is set as a first vertical plane parallel to the axial direction. At least two retaining ribs are provided at intervals along the circumferential direction on the upper side of the rotating seat. The side surface of the first side of the retaining rib is set as a second vertical plane parallel to the axial direction. The side surface of the second side of the retaining rib is set as a second curved surface. The second curved surface and the first curved surface are engaged. The second vertical plane and the first vertical plane are engaged.

[0005] Furthermore, the rotating seat is provided with a polygonal groove, and the outer side of the spiral sleeve is provided with a polygonal protrusion that mates with the polygonal groove.

[0006] Furthermore, the reversing brake is provided with a non-circular hole, and the push rod is provided with a limiting boss that mates with the non-circular hole.

[0007] Furthermore, the inner wall of the pen body container is provided with several vertical grooves spaced circumferentially, and the outer periphery of the reversing brake is provided with protruding ribs that cooperate with the vertical grooves.

[0008] Furthermore, the sealing piston is provided with a snap-fit ​​protrusion ring, and the outer wall of the push rod is provided with a snap-fit ​​groove that mates with the snap-fit ​​protrusion ring.

[0009] Furthermore, the pen body container is provided with a sealing cap, and the inner wall of the sealing cap is provided with an elastic sealing ring that cooperates with the pen body container.

[0010] Compared with the prior art, the advantages of this invention are positive and obvious. When the rotating seat rotates forward, the second curved surface of the rotating seat presses against the first curved surface of the elastic buckle, causing the elastic buckle to deform axially. The first curved surface of the elastic buckle then passes over the second curved surface of the retaining rib from one side. Afterward, the elastic buckle returns to its shape and stays on the other side of the retaining rib. When the rotating seat rotates in the reverse direction, the first vertical plane of the elastic buckle engages with the second vertical plane of the retaining rib, thereby preventing the rotating seat from rotating in the reverse direction. This eliminates the need for repeated adjustments and resets, allowing for precise control of the extrusion amount and reducing wear on the sealing structure. Attached Figure Description

[0011] Figure 1 This is a cross-sectional schematic diagram of a rotary extrusion type multifunctional double-ended makeup brush according to the present invention.

[0012] Figure 2 This is a schematic diagram of the dual-head structure of a rotary extrusion type multifunctional double-headed cosmetic pen according to this utility model.

[0013] Figure 3 This is a cross-sectional schematic diagram of the reversing brake in a rotary extrusion type multifunctional double-ended makeup brush of this utility model.

[0014] Figure 4 This is a three-dimensional schematic diagram of the reversing brake in a rotary extrusion type multifunctional double-ended cosmetic brush of this utility model.

[0015] Figure 5 This is a top view schematic diagram of the reversing brake in a rotary extrusion type multifunctional double-ended makeup brush of this utility model.

[0016] Figure 6 This is a cross-sectional schematic diagram of the rotating seat in a rotary extrusion type multifunctional double-ended cosmetic pen of this utility model.

[0017] Figure 7 This is a top view schematic diagram of the rotating base in a rotary extrusion type multifunctional double-ended makeup brush of this utility model.

[0018] Figure 8 This is a three-dimensional schematic diagram of the rotating base in a rotary extrusion type multifunctional double-ended cosmetic pen of this utility model.

[0019] Figure 9 This is a three-dimensional schematic diagram of the spiral sleeve in a rotary extrusion type multifunctional double-ended cosmetic pen of this utility model.

[0020] Figure 10 This is a cross-sectional schematic diagram of the push rod in a rotary extrusion type multifunctional double-ended cosmetic pen of this utility model.

[0021] Figure 11This is a schematic diagram of the pen body container of the push rod in a rotary extrusion type multifunctional double-ended cosmetic pen of this utility model.

[0022] Figure 12 This is a cross-sectional schematic diagram of the sealing piston in a rotary extrusion type multifunctional double-ended cosmetic pen of this utility model.

[0023] Figure 13 This is a three-dimensional schematic diagram of the sealing piston in a rotary extrusion type multifunctional double-ended cosmetic pen of this utility model.

[0024] Figure 14 This is a cross-sectional schematic diagram of the pen tip connector in a rotary extrusion type multifunctional double-ended cosmetic pen of this utility model.

[0025] Figure 15 This is a cross-sectional schematic diagram of the flexible applicator tip in a rotary extrusion type multifunctional double-ended makeup brush of this utility model. Detailed Implementation

[0026] The present invention will be further described below with reference to embodiments, but the present invention is not limited to these embodiments. Any similar variations using the present invention should be included within the protection scope of the present invention. The use of directions such as up, down, front, back, left, right, center, inside, and outside in the present invention is only for the convenience of clear description and is not intended to limit the technical solution of the present invention.

[0027] like Figures 1-15As shown, this utility model provides a rotary extrusion type multifunctional double-ended cosmetic pen, including a rotating base 2. A pen tip structure is respectively provided on the upper and lower sides of the rotating base 2. Each pen tip structure includes a pen body container 1. The rotating base 2 is rotatably connected to the pen body container 1. A spiral sleeve 3 is fixedly installed in the rotating base 2. The inner wall of the spiral sleeve 3 is provided with an internal thread. A push rod 4 is provided in the spiral sleeve 3. The outer wall of the push rod 4 is provided with an external thread, which engages with the internal thread. A sealing piston 5 is fixedly connected to the upper side of the push rod 4. A pen tip connector 6 is provided above the sealing piston 5. The pen tip connector 6 is fixedly connected to the pen body container 1. A flexible applicator 7 is provided above the pen tip connector 6. The flexible applicator 7 has several material holes. Two sealing protrusions 9 are axially spaced along the outer periphery of the sealing piston 5. The sealing protrusions 9 engage with the inner wall of the pen body container 1. Between the rotating base 2 and the sealing piston 5... A reversing brake 10 is provided, which includes an annular component. The reversing brake 10 is sleeved on the outer periphery of the push rod 4 through the annular component. The annular component is fixedly connected to the pen body container 1. The push rod 4 and the reversing brake 10 form an axial sliding pair. Two elastic buckles 11 are arranged at intervals along the circumferential direction on the lower side of the annular component. The elastic buckles 11 are cantilever structures. The side of the first side of the elastic buckle 11 is set as a first curved surface 12, and the side of the second side of the elastic buckle 11 is set as a first vertical plane 13 parallel to the axial direction. At least two retaining ribs 14 are arranged at intervals along the circumferential direction on the upper side of the rotating seat 2. The side of the first side of the retaining rib 14 is set as a second vertical plane 15 parallel to the axial direction, and the side of the second side of the retaining rib 14 is set as a second curved surface 16. The second curved surface 16 cooperates with the first curved surface 12, and the second vertical plane 15 cooperates with the first vertical plane 13.

[0028] Furthermore, the rotating seat 2 is provided with a polygonal groove 17, and the outer side of the spiral sleeve 3 is provided with a polygonal protrusion 18 that cooperates with the polygonal groove 17.

[0029] Furthermore, the reversing brake 10 is provided with a non-circular hole 19, and the push rod 4 is provided with a limiting boss 20 that cooperates with the non-circular hole 19, so that the push rod 4 cannot rotate after axial movement and the limiting boss 20 enters the non-circular hole 19, but can only move axially.

[0030] Furthermore, the inner wall of the pen body container 1 is provided with a plurality of vertical grooves 21 spaced circumferentially, and the outer periphery of the reversing brake 10 is provided with protruding ribs 22 that cooperate with the vertical grooves 21, so that the reversing brake 10 is fixedly connected to the pen body container 1, preventing the reversing brake 10 from rotating with the rotating seat 2.

[0031] Furthermore, the sealing piston 5 is provided with a snap-fit ​​protrusion 23, and the outer wall of the push rod 4 is provided with a snap-fit ​​groove 24 that cooperates with the snap-fit ​​protrusion 23.

[0032] Furthermore, the pen body container 1 is provided with a sealing cap 25, and the inner wall of the sealing cap 25 is provided with an elastic sealing ring 26 that cooperates with the pen body container 1.

[0033] Specifically, the specific structure and principle of the pen tip connector 6 and the flexible application pen tip 7 in this utility model, as well as other aspects not described in detail, all adopt well-known solutions in the prior art, which are already understood by those skilled in the art and will not be elaborated here.

[0034] The working process of this utility model is as follows: Rotate the rotating seat 2, which drives the spiral sleeve 3 to rotate. The spiral sleeve 3 pushes the push rod 4 to move upward through the cooperation of the internal and external threads. The push rod 4 pushes the sealing piston 5 to move upward. The sealing piston 5 squeezes the material on the upper side. The material passes through the pen body joint and the material hole to reach the outer side of the flexible coating pen tip 7, and then it is coated.

[0035] When the rotating seat 2 rotates in the forward direction, the second curved surface 16 of the rotating seat 2 presses the first curved surface 12 of the elastic buckle 11, causing the elastic buckle 11 to deform in the axial direction. The first curved surface 12 of the elastic buckle 11 then passes over the second curved surface 16 of the retaining rib 14 from one side. After that, the elastic buckle 11 returns to its shape and stays on the other side of the retaining rib 14. When the rotating seat 2 rotates in the reverse direction, the first vertical plane 13 of the elastic buckle 11 engages with the second vertical plane 15 of the retaining rib 14, thereby preventing the rotating seat 2 from rotating in the reverse direction. This eliminates the need for repeated adjustments and resets, allowing for precise control of the extrusion amount and reducing wear on the sealing structure.

[0036] like Figure 2 As shown, the cosmetic pen of this utility model has a double-tip structure, and one cosmetic pen has multiple functions, ensuring that consumers can use it smoothly and efficiently.

[0037] The two sealing rings 9 of the sealing piston 5 are in close elastic contact with the inner wall of the pen body container 1, forming two seals, which can effectively prevent the leakage of oily contents.

[0038] The elastic sealing ring 26 of the sealing cap 25 fits tightly with the pen body container 1, thereby achieving a good sealing function.

Claims

1. A rotary extrusion type multi-functional double-ended cosmetic pen, characterized in that, The device includes a rotating base, with a pen tip structure on its upper and lower sides. Each pen tip structure includes a pen body container. The rotating base is rotatably connected to the pen body container. A spiral sleeve is fixedly installed in the rotating base, with an internal thread on its inner wall. A push rod is installed in the spiral sleeve, with an external thread on its outer wall. The external thread mates with the internal thread. A sealing piston is fixedly connected to the upper side of the push rod. A pen tip connector is located above the sealing piston and is fixedly connected to the pen body container. A flexible application pen tip is located above the pen tip connector, and the flexible application pen tip has several material holes. Two sealing protrusions are axially spaced along the outer periphery of the sealing piston, and these sealing protrusions mate with the inner wall of the pen body container. A reversing mechanism is provided between the rotating base and the sealing piston. The actuator, the reversing brake, includes an annular component. The reversing brake is sleeved on the outer circumference of the push rod through the annular component. The annular component is fixedly connected to the pen body container. The push rod and the reversing brake form an axial sliding pair. Two elastic buckles are spaced apart along the circumferential direction on the lower side of the annular component. The elastic buckles are cantilever structures. The side of the first side of the elastic buckle is set as a first curved surface. The side of the second side of the elastic buckle is set as a first vertical plane parallel to the axial direction. At least two retaining ribs are spaced apart along the circumferential direction on the upper side of the rotating seat. The side of the first side of the retaining rib is set as a second vertical plane parallel to the axial direction. The side of the second side of the retaining rib is set as a second curved surface. The second curved surface and the first curved surface cooperate with each other. The second vertical plane and the first vertical plane cooperate with each other.

2. The rotary extrusion type multifunctional double-ended cosmetic pen according to claim 1, characterized in that, The rotating seat is provided with a polygonal groove, and the outer side of the spiral sleeve is provided with a polygonal protrusion that mates with the polygonal groove.

3. The rotary extrusion type multifunctional double-ended makeup brush according to claim 1, characterized in that, The aforementioned reversing brake is provided with a non-circular hole, and the push rod is provided with a limiting boss that mates with the non-circular hole.

4. The rotary extrusion type multifunctional double-ended makeup brush according to claim 1, characterized in that, The inner wall of the pen body container is provided with several vertical grooves spaced circumferentially, and the outer periphery of the reversing brake is provided with ribs that cooperate with the vertical grooves.

5. A rotary extrusion type multifunctional double-ended cosmetic pen according to claim 1, characterized in that, The sealing piston is provided with a snap-fit ​​protrusion ring, and the outer wall of the push rod is provided with a snap-fit ​​groove that mates with the snap-fit ​​protrusion ring.

6. A rotary extrusion type multifunctional double-ended cosmetic pen according to claim 1, characterized in that, The pen body container is provided with a sealing cap, and the inner wall of the sealing cap is provided with an elastic sealing ring that cooperates with the pen body container.

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