Rotatable and retractable press-type cosmetic pen

By designing the drive assembly and coupling structure of the rotatable pressing pen, the problem of existing cosmetics requiring two-hand operation is solved, and the one-hand feeding and rotation function is realized, which improves the convenience of use and precise control.

WO2025162350A1PCT designated stage Publication Date: 2025-08-07SHYA HSIN PACKAGING INDUSTRY (CHINA) CO LTD
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Patent Information

Application Number
PCT/CN2025/075081
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-02-01
Filing Date
2025-01-26
Publication Date
2025-08-07

AI Technical Summary

Technical Problem

Existing cosmetics such as lipstick, lip gloss, eyeliner, etc. require both hands to operate when using them, and turn the cosmetic container to discharge the materials, which is inconvenient to use.

Method used

A rotatable pressing makeup pen is designed, adopting the structure of a driving component and a coupling member. One-hand pressing buttons can achieve one-way discharge and rotation of cosmetic materials by using the coordination between the coupling component and the driving component.

Benefits of technology

It realizes one-handed operation of makeup pens, simplifies the filling process, reduces material pollution and waste, and meets consumers' needs for precise discharge and rapid rotation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN2025075081_07082025_PF_FP_ABST
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Abstract

A rotatable and retractable press-type cosmetic pen, comprising a pen tip assembly (100), a pen body assembly (200), a discharging assembly (300) and a driving assembly (400), wherein the pen tip assembly (100) comprises a sleeve (110); the pen body assembly (200) comprises a pen barrel (210) and a coupling member (220) rotatably mounted on the pen barrel (210); the sleeve (110) is fixedly mounted inside the pen barrel (210), the driving assembly (400) is mounted inside the coupling member (220), and the discharging assembly (300) is mounted inside the sleeve (110) and is connected to the driving assembly (400); and when rotating, the coupling member (220) can drive the discharging assembly (300) to move towards the interior of the sleeve (110), and the driving assembly (400) can drive the discharging assembly (300) to move towards the exterior of the sleeve (110). The driving assembly (400) is provided in the cosmetic pen, and comprises a button (410), which is mounted at the tail of the cosmetic pen, and by means of a user pressing the button (410) with only a single hand, a one-way discharging operation of the cosmetic pen can be completed, such that the rotatable and retractable press-type cosmetic pen is convenient to use.
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Description

Rotatable press-on makeup brush Technical Field

[0001] The present application relates to cosmetic packaging technology, and in particular to a rotatable press-on cosmetic pen. Background Art

[0002] Currently, cosmetics such as lipsticks, lip glosses, and eyeliners are mostly dispensed by rotating. To use, the user must rotate the base or rotating portion of the cosmetic container to draw the cosmetics out of the container. Therefore, using such cosmetic pens requires both hands, making them very inconvenient.

[0003] Utility Model Content

[0004] In order to overcome the above-mentioned defects, the present application provides a rotatable press-type cosmetic brush, which is provided with a driving component. The driving component includes a button, which is installed at the tail of the cosmetic brush. The user can complete the one-way discharging operation by pressing the button with one hand, which is very convenient to use.

[0005] The technical solution adopted by this application to solve its technical problems is:

[0006] A rotatable press-type cosmetic brush comprises a pen tip assembly, a pen body assembly, a discharge assembly and a drive assembly, wherein the pen tip assembly comprises a sleeve, the pen body assembly comprises a pen holder and a connecting piece rotatably mounted on the pen holder, the sleeve is fixedly mounted in the pen holder, the drive assembly is mounted in the connecting piece, the discharge assembly is mounted in the sleeve, and the discharge assembly is connected to the drive assembly. When the connecting piece rotates, it can drive the discharge assembly to move toward the inside of the sleeve, and the drive assembly can drive the discharge assembly to move toward the outside of the sleeve.

[0007] Optionally, the connecting member is axially fixed and circumferentially movably installed in the pen body, and when the connecting member rotates, it can drive the driving assembly to rotate synchronously, and then drive the discharging assembly to move toward the interior of the sleeve through the driving assembly.

[0008] Optionally, the connecting member is installed in the pen body for unidirectional rotation.

[0009] Optionally, the inner side wall of the pen barrel is provided with serrations, the serrations are provided with a first inclined surface and a first straight surface, the connecting piece is provided with elastic teeth, the elastic teeth are provided with a second inclined surface and a second straight surface, the first inclined surface can slide on the second inclined surface, and the first straight surface is stopped by the second straight surface.

[0010] Optionally, a mounting groove is provided on the connecting member, the elastic tooth is provided in the mounting groove, the first end of the elastic tooth is fixedly connected to the connecting member, the second end of the elastic tooth is a free end, the second straight surface is located at the second end of the elastic tooth, and the second inclined surface is located on the outer surface of the elastic tooth.

[0011] Optionally, the discharging assembly includes a loading barrel and a screw fixedly connected to the loading barrel, the outer side wall of the screw is provided with an external thread, the screw is threadedly connected to the driving assembly, and the driving assembly is fixedly installed in the connecting piece.

[0012] Optionally, the driving assembly includes a button, a ratchet seat and a rotating member, the ratchet seat is fixedly installed in the connecting member, the button and the rotating member are installed in the ratchet seat, and when the ratchet seat rotates, it can drive the rotating member to rotate synchronously, the screw is threadedly connected to the rotating member, and the button can drive the rotating member to rotate.

[0013] Optionally, the material carrying barrel and the screw are an integrally formed part, or the material carrying barrel and the screw are separate structures, and the screw is fixed to the material carrying barrel by snapping.

[0014] Optionally, the pen body assembly further includes a guide member, which is fixedly installed in the pen shaft, the inner side wall of the guide rod is provided with a ridge, the screw rod is axially provided with a guide groove, and the ridge is stuck in the guide groove.

[0015] Optionally, the guide member is directly formed in the pen shaft, or the pen shaft and the guide member are separate structures, and the guide member is clamped in the pen shaft.

[0016] Optionally, the drive assembly further includes a ratchet, a ratchet wheel and an elastic member, the ratchet is fixedly mounted in the button, the ratchet and the ratchet wheel are movably mounted in the ratchet seat, the ratchet and the ratchet wheel are engaged with each other, the rotating member is sleeved on the screw and the rotating member is threadedly connected to the screw, the rotating member is rotatably mounted in the connecting member, and the rotating member abuts against the connecting member, an elastic member is provided between the rotating member and the ratchet wheel, the ratchet can drive the ratchet wheel to rotate, the ratchet wheel can drive the rotating member to rotate, and then the rotating member drives the screw rod to move in a direction away from the button.

[0017] Optionally, the ratchet is provided with a first tooth, the ratchet is provided with a second tooth and a first claw, the rotating member is provided with a second claw, and the inner circumferential wall of the rotating member is provided with an internal thread, the first tooth and the second tooth are engaged with each other, and a gap is provided between two adjacent first claws, and the second claw is inserted into the gap to realize the synchronous rotation of the rotating member and the ratchet.

[0018] The beneficial effects of this application are:

[0019] (1) In the present application, the pen tip assembly includes a sleeve and a pen cap, the discharge assembly includes a loading barrel and a screw, and the pen body assembly includes a pen shaft and a connecting piece. Before filling, the loading barrel is located at the front end of the sleeve, so that it is convenient to load the cosmetic material from the front end of the cosmetic pen into the assembled cosmetic pen, and the loading is very convenient; after filling, the driving assembly is driven to rotate synchronously by rotating the connecting piece, and the screw connection between the driving assembly and the screw is utilized to retract the screw into the pen shaft, that is, the cosmetic material is retracted into the sleeve, and the operation is very convenient.

[0020] (2) In the present application, the user can operate the driving assembly with one hand to complete the discharge of the cosmetic pen, which is more convenient to use and can effectively control the discharge amount. In the present application, the use of the connecting piece can not only assist the filling operation of the cosmetic material to achieve the purpose of simplifying the filling process, but also can rotate the excess material back into the sleeve during use, reducing the contamination and waste of materials caused by misoperation. The present application uses two systems to respectively control the one-way discharge and one-way rotation processes of the cosmetic material, thereby meeting the consumer's demand for accurate discharge and fast rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic diagram of the structure of a cosmetic brush in Example 1 of the present application;

[0022] Figure 2 is an enlarged view of point A in Figure 1;

[0023] FIG3 is a second structural diagram of the cosmetic brush in Example 1 of the present application;

[0024] FIG4 is an exploded view of the cosmetic brush in Example 1 of the present application;

[0025] FIG5 is a schematic diagram of a partial structure of a cosmetic brush in Example 1 of the present application;

[0026] FIG6 is a schematic structural diagram of the pen holder in Example 1 of the present application;

[0027] FIG7 is an enlarged view of point B in FIG6;

[0028] FIG8 is a schematic structural diagram of the connecting member in Example 1 of the present application;

[0029] FIG9 is an enlarged view of point C in FIG8 ;

[0030] FIG10 is a schematic structural diagram of the guide member in Example 1 of the present application;

[0031] FIG11 is a schematic structural diagram of the discharge assembly in Example 1 of the present application;

[0032] FIG12 is a schematic structural diagram of the ratchet in Example 1 of the present application;

[0033] FIG13 is a schematic structural diagram of the ratchet in Example 1 of the present application;

[0034] FIG14 is a schematic structural diagram of the rotating member in Example 1 of the present application;

[0035] FIG15 is a schematic structural diagram of the pen cap in Example 1 of the present application;

[0036] FIG16 is a schematic diagram of the structure of the cosmetic pen before filling in Example 1 of the present application;

[0037] FIG17 is an enlarged view of point D in FIG16 ;

[0038] FIG18 is a schematic diagram of the structure of the cosmetic pen after filling in Example 1 of the present application;

[0039] FIG19 is an enlarged view of point E in FIG18 ;

[0040] FIG20 is a schematic diagram of the structure of the cosmetic pen after being pressed in Example 1 of the present application;

[0041] FIG21 is a schematic diagram of the structure of the cosmetic pen after use in Example 1 of the present application;

[0042] FIG22 is a schematic diagram of the structure of a cosmetic brush in Example 2 of the present application;

[0043] FIG23 is a second structural diagram of the cosmetic brush in Example 2 of the present application;

[0044] FIG24 is an exploded view of the cosmetic brush in Example 2 of the present application;

[0045] FIG25 is a perspective view of the pen holder in Example 2 of the present application;

[0046] In the figure: 100-pen tip assembly, 110-sleeve, 120-pen cap,

[0047] 200-pen body assembly, 210-pen barrel, 211-saw teeth, 212-first inclined surface, 213-first straight surface, 220-connecting member, 221-elastic teeth, 222-second inclined surface, 223-second straight surface, 230-guide member, 231-convex ridge,

[0048] 300-discharging assembly, 310-carrying barrel, 320-screw, 321-external thread, 322-guide groove, 330-cosmetic material,

[0049] 400 - driving assembly, 410 - button, 420 - ratchet, 421 - first tooth, 430 - ratchet seat, 440 - ratchet wheel, 441 - second tooth, 442 - first claw, 450 - elastic member, 460 - rotating member, 461 - second claw, 462 - internal thread. DETAILED DESCRIPTION

[0050] The following will be combined with the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described in this application are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0051] It should be noted that the terms "first", "second", etc. in the specification and claims of this application and the following drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the objects used in this way can be interchanged where appropriate so that the embodiments of the application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0052] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0053] Example 1: As shown in Figure 1-21, a rotatable press-type cosmetic pen includes a pen tip assembly 100, a pen body assembly 200, a discharge assembly 300 and a drive assembly 400. The pen tip assembly 100 includes a sleeve 110, the pen body assembly 200 includes a pen shaft 210 and a connecting member 220 rotatably mounted on the pen shaft 210, the sleeve 110 is fixedly mounted in the pen shaft 210, the drive assembly 400 is mounted in the connecting member 220, the discharge assembly 300 is mounted in the sleeve 110, and the discharge assembly 300 is connected to the drive assembly 400. When the connecting member 220 rotates, it can drive the discharge assembly 300 to move toward the inside of the sleeve 110, and the drive assembly 400 can drive the discharge assembly 300 to move toward the outside of the sleeve 110.

[0054] Optionally, the pen tip assembly 100 further includes a cap 120, which is removably mounted on the sleeve 110. The discharging assembly 300 stores cosmetic material 330, which may be lipstick, eye shadow, lip gloss, lip balm, eyeliner paste, sunscreen stick, body fragrance, or deodorant stick. The coupling 220 is used to drive the discharging assembly 300 along the axial direction of the sleeve to retract the cosmetic material 330 into the sleeve 110. The driving assembly 400 is used to drive the discharging assembly 300 along the axial direction of the sleeve 110 to extend the cosmetic material 330 out of the sleeve 110 for user use. The discharging assembly 300 moves axially along the sleeve 110 under the action of the coupling 220 and the discharging assembly 400 under the action of the driving assembly 400, both in opposite directions.

[0055] 18 , the cosmetic material 330 is completely retracted into the sleeve 110, and the pen cap 120 is finally covered. After the cosmetic pen in the present application is assembled, since the discharge assembly is located at the front end of the sleeve, it is easy to fill the cosmetic material from the front end of the cosmetic pen into the discharge assembly, and loading is very convenient; after loading, by rotating the connecting piece and utilizing the connection relationship between the connecting piece and the discharge assembly, the cosmetic material is completely retracted into the interior of the sleeve, and the operation is very convenient.

[0056] During use, under the action of the drive assembly 400, the discharge assembly 300 runs along the axial direction of the sleeve 110, so that the cosmetic material extends out of the sleeve for user use; when the discharge is excessive, the user can retract the cosmetic material into the sleeve by rotating the connecting piece. In this application, the user can operate the drive assembly with one hand to complete the discharge of the cosmetic pen, so it is more convenient to use and can effectively control the discharge amount; the use of the connecting piece in this application can not only assist the filling operation of the cosmetic material to achieve the purpose of simplifying the filling process, but also can rotate the excess material back into the sleeve during use, reducing the contamination and waste of materials caused by misoperation. The present application uses two systems to respectively control the one-way discharge and one-way rotation processes of the cosmetic material, thereby meeting the consumer's needs for accurate discharge and rapid rotation.

[0057] Optionally, the coupling 220 is axially fixed and circumferentially movably installed in the pen barrel 210, and when the coupling 220 rotates, it can drive the drive assembly 400 to rotate synchronously, thereby driving the discharge assembly 300 to move toward the interior of the sleeve 110 through the drive assembly 400. In one possible embodiment, the coupling 220 is axially fixed and circumferentially movably installed in the pen barrel 210 as follows: the outer circumferential wall of the coupling 220 is provided with a first circumferentially arranged retaining ring, and the inner circumferential wall of the pen barrel 210 is provided with a second circumferentially arranged retaining ring. The first and second circumferential rings fit together to enable the coupling 220 to rotate relative to the pen barrel 210, but the coupling 220 cannot move axially relative to the pen barrel 210. In another possible embodiment, the structure of the connecting member 220, which is axially fixed and circumferentially movably installed inside the pen body 210, is as follows: the outer peripheral wall of the connecting member 220 is provided with a first retaining ring arranged along the circumferential direction, and the inner peripheral wall of the pen body 210 is provided with a groove for the first retaining ring to engage, or the inner peripheral wall of the pen body 210 is provided with a first retaining ring arranged along the circumferential direction, and the outer peripheral wall of the connecting member 220 is provided with a groove for the first retaining ring to engage, and the cooperation between the first retaining ring and the groove enables the connecting member 220 to rotate relative to the pen body 210, but the connecting member 220 cannot move axially relative to the pen body 210.

[0058] Optionally, the coupling 220 is unidirectionally mounted within the penholder 210. Specifically, the coupling 220 can only rotate clockwise or counterclockwise relative to the penholder 210, thereby enabling the discharging assembly 300 to operate only in the direction of the drive assembly 400. After the cosmetic material 330 is filled, the coupling 220 is rotated to quickly retract the cosmetic material into the sleeve. During use, the coupling 220 can also be rotated to retract excess cosmetic material into the sleeve, allowing the cosmetic material to be rotated back. However, the discharging assembly's discharge is controlled only by the drive assembly; the coupling cannot control the discharge, effectively controlling the discharge volume.

[0059] As shown in Figure 1, the connecting piece 220 protrudes from the tail of the pen body 210. As shown in Figures 6 and 7, the inner side wall of the pen body 210 is provided with serrations 211, and the serrations 211 are provided with a first inclined surface 212 and a first straight surface 213. As shown in Figures 8 and 9, the connecting piece 220 is provided with elastic teeth 221, and the elastic teeth 221 are provided with a second inclined surface 222 and a second straight surface 223. The first inclined surface 212 can slide on the second inclined surface 222, and the first straight surface 213 is stopped by the second straight surface 223.

[0060] As shown in FIG8 , in one possible embodiment, a mounting groove is provided on the coupling 220, and an elastic tooth 221 is disposed within the mounting groove. The first end of the elastic tooth 221 is fixedly connected to the coupling 220, and the second end of the elastic tooth 221 is a free end. Optionally, except for the first end, which is fixedly connected to the coupling 220, the rest of the elastic tooth 221 is disconnected from the coupling 220, thereby providing the elastic tooth 221 with a certain degree of elasticity. As shown in FIG9 , a second straight surface 223 is located at the second end of the elastic tooth 221, and a second inclined surface 222 is located on the outer surface of the elastic tooth 221. Optionally, two elastic teeth 221 are provided on the coupling 220, and the two elastic teeth 221 are symmetrically arranged along the central axis of the coupling 220. The inner circumferential wall of the pen barrel 210 is provided with a plurality of spaced serrations 211. This ensures force balance on the coupling 220 during rotation, improving user comfort.

[0061] When the coupling 220 is mounted on the pen holder 210, the first straight surface 213 and the second straight surface 223 abut against each other, and the first inclined surface 212 and the second inclined surface 222 are in contact with each other. When the user rotates the coupling 220 clockwise, the elasticity of the elastic teeth 221 causes the second inclined surface 222 to slide smoothly from the first inclined surface 212 of the previous sawtooth 211 to the first inclined surface 212 of the next sawtooth 211, and the second straight surface 223 again abuts against the first straight surface 213 of the next sawtooth 211. Because the first straight surface 213 and the second straight surface 223 abut against each other, the user cannot rotate the coupling 220 counterclockwise, preventing the user from manually operating the coupling to remove cosmetic material during use.

[0062] In another possible embodiment, the outer peripheral wall of the connecting member 220 is provided with a plurality of elastic teeth 221 arranged at intervals, and the inner peripheral wall of the pen body 210 is provided with a plurality of serrations 211 arranged at intervals. The function of making the connecting member 220 rotate in one direction can also be achieved by utilizing the plurality of elastic teeth 221 and the serrations 211 to cooperate with each other.

[0063] As shown in Figures 1, 3, and 11, the discharge assembly 300 includes a loading barrel 310 and a screw 320 fixedly connected to the loading barrel 310. The outer wall of the screw 320 is provided with an external thread 321. The screw 320 is threadedly connected to the drive assembly 400, which is fixedly installed in the coupling 220. When the operator rotates the coupling 220, the drive assembly 400 rotates synchronously. Since the screw 320 is threadedly connected to the drive assembly 400, the drive assembly 400 causes the screw 320 and the loading barrel 310, i.e., the discharge assembly 300, to move along the axial direction of the sleeve 110, thereby retracting the cosmetic material into the sleeve 110. Similarly, when the operator directly acts on the drive assembly 400 to rotate the drive assembly 400, due to the threaded connection between the screw 320 and the drive assembly 400, the screw 320 and the loading barrel 310, that is, the discharge assembly 300, run as a whole along the axial direction of the sleeve 110 to achieve the purpose of extending the cosmetic material out of the sleeve 110.

[0064] As shown in Figures 1-4, the drive assembly 400 includes a button 410, a ratchet seat 430, and a rotating member 460. The ratchet seat 430 is fixedly installed in the connecting member 220. The button 410 and the rotating member 460 are installed in the ratchet seat 430. When the ratchet seat 430 rotates, it can drive the rotating member 460 to rotate synchronously. The screw 320 is screwed to the rotating member 460, and the button 410 can drive the rotating member 460 to rotate. When the operator rotates the connecting member 220, the ratchet seat 430 rotates synchronously with the rotating member 460. Since the screw 320 is screwed to the rotating member 460, the rotating member 460 can cause the screw 320 to move axially along the sleeve 110. When the operator presses the button 410, the button 410 drives the rotating member 460 to rotate, similarly achieving axial movement of the screw 320 along the sleeve 110.

[0065] In the present application, the discharge assembly 300 completes the discharge or retraction action by rotating the rotating member 460 to drive the screw 320 to move. When the connecting member 220 rotates, the direction in which the rotating member 460 is driven to rotate is opposite to the direction in which the rotating member 460 is driven to rotate by pressing the button 410. Therefore, when the user rotates the connecting member 220, the discharge assembly 300 moves toward the inside of the sleeve 110 to complete the retraction operation of the cosmetic material 330; and when the user presses the button 410, the discharge assembly 300 moves toward the outside of the sleeve 110 to complete the discharge operation of the cosmetic material 330.

[0066] In this embodiment, as shown in FIG11 , the loading barrel 310 and the screw 320 are integrally formed. The loading barrel 310 is used to support the cosmetic material 330 . Designing the loading barrel 310 and the screw 320 as an integral part simplifies the structure of the cosmetic brush.

[0067] As shown in Figures 1-4 and 10, the pen body assembly 200 also includes a guide member 230, which is fixedly mounted within the pen barrel 210. The inner sidewall of the guide member 230 is provided with a ridge 231. As shown in Figure 11, the screw 320 is provided with a guide groove 322 along its axial direction, into which the ridge 231 engages. Optionally, the inner sidewall of the guide member 230 is provided with two ridges 231 symmetrically arranged along the central axis, and the screw 320 is provided with two guide grooves 322 symmetrically arranged along the central axis, with the guide grooves 322 extending along the entire axial direction of the screw 320. After assembly, the ridges 231 engage with the guide grooves 322 to secure the running direction of the discharging assembly 300, thereby improving the stability of the discharging assembly during axial operation.

[0068] 4 , the pen holder 210 and the guide member 230 are separate structures, and the guide member 230 is snapped into the pen holder 210. The guide member 230 and the pen holder 210 are separately processed and formed before being assembled together, which facilitates the precision control of the guide member 230 and the pen holder 210.

[0069] When the user directly presses the drive assembly 400, the drive assembly 400 can only drive the discharge assembly 300 to move in a direction away from the drive assembly 400. As shown in Figures 1-4, the drive assembly 400 also includes a ratchet 420, a ratchet wheel 440, and an elastic member 450. The ratchet 420 is fixedly installed in the button 410. The ratchet 420 and the ratchet wheel 440 are movably installed in the ratchet seat 430. Optionally, the ratchet 420 is axially movable and circumferentially fixedly installed in the ratchet seat 430, that is, when the ratchet seat 430 rotates, it can drive the ratchet 420 to rotate synchronously. The ratchet 420 and the ratchet seat 430 can achieve the function of synchronous rotation through mutually engaged ribs.

[0070] The ratchet teeth 420 and the ratchet wheel 440 mesh with each other. The rotating member 460 is sleeved on the screw rod 320 and is threadedly connected to the screw rod 320. The rotating member 460 is rotatably mounted in the coupling member 220 and abuts against the coupling member 220. An elastic member 450 is provided between the rotating member 460 and the ratchet wheel 440. The ratchet teeth 420 can drive the ratchet wheel 440 to rotate, which in turn drives the rotating member 460 to rotate. In turn, the rotating member 460 drives the screw rod 320 to move in a direction away from the button 410. The ratchet seat 430 is fixedly mounted in the coupling member 220 by means of interference fit, snap-fit, bonding, etc., so that the ratchet seat 430 can rotate synchronously with the rotation of the coupling member 220. In this way, when the connecting member 220 rotates, the entire drive assembly 400 is driven to rotate through the ratchet seat 430. Since the rotating member 460 is threadedly connected to the screw 320, the rotating member 460 can drive the screw 320 to move toward the inside of the sleeve 110 when it rotates. At this time, the drive assembly 400 as a whole acts like a large nut.

[0071] In one possible embodiment, as shown in Figures 1 and 2, the ratchet seat 430 is interference-fitted in the connecting member 220, and the rotating member 460 is rotatably installed in the connecting member 220. The first end of the elastic member 450 abuts against the rotating member 460, the second end of the elastic member 450 abuts against the ratchet 440, and the button 410 protrudes from the connecting member 220. During use, the user presses the button 410, and the button 410 drives the ratchet 420 and the ratchet 440 to move synchronously toward the rotating member 460, and the elastic member 450 is compressed. At the same time, the button 410 drives the ratchet 440 to rotate through the ratchet 420, and the ratchet 440 drives the rotating member 460 to rotate. The rotating member 460 drives the screw 320 and the loading barrel 310 to run synchronously along the axial direction of the sleeve 110 to realize a one-way discharging operation. The user presses the button 410 once, and the screw 320 will drive a small amount of cosmetic material 330 to extend for the user to use, thereby facilitating the control of the discharge amount and causing no pollution or waste of the material. When the user releases the button 410, under the action of the elastic member 450, the button 410, the ratchet 420 and the ratchet 440 are reset, waiting for the next press.

[0072] As shown in FIG12 , the ratchet 420 is provided with a first latching tooth 421. As shown in FIG13 , the ratchet 440 is provided with a second latching tooth 441 and a first pawl 442. As shown in FIG5 and FIG14 , the rotating member 460 is provided with a second pawl 461, and the inner peripheral wall of the rotating member 460 is provided with an internal thread 462. The first latching tooth 421 and the second latching tooth 441 are engaged with each other. A gap is provided between two adjacent first pawls 442, and the second pawl 461 is inserted into the gap to achieve synchronous rotation of the rotating member 460 and the ratchet 440. When the user rotates the coupling 220, the coupling 220 drives the ratchet seat 430 to rotate, and the ratchet seat 430 drives the ratchet 420, the ratchet 440 and the rotating member 460 to rotate synchronously. That is, the entire drive assembly 400 rotates as the coupling 220 rotates.

[0073] The rotating member 460 is sleeved on the screw 320, and the internal thread 462 on the rotating member 460 cooperates with the external thread 321 on the screw 320. In the present application, the rotating member 460 is used to drive the screw 320. During operation, the rotating member 460 only needs to rotate, and does not need to run along the axial direction of the screw 320, thereby simplifying the structure of the rotating member and the screw.

[0074] Before filling, as shown in Figures 15-17, after the other parts of the cosmetic pen except the pen cap 120 are assembled, the ratchet seat 430 is interference fit in the connecting piece 220, and the external thread 321 and the internal thread 462 cooperate with each other, the loading barrel 310 is close to the open end of the sleeve 110, and then the cosmetic material 330 is inserted into the loading barrel 311, the connecting piece 220 is rotated, and the entire drive assembly 400 rotates synchronously. Since the screw 320 is threadedly connected to the rotating piece 460, the screw 320 runs toward the inside of the drive assembly 400 under the drive of the rotating piece 460 until, as shown in Figures 17 and 18, the cosmetic material 330 is completely retracted into the sleeve 110, the screw 320 is completely retracted into the drive assembly 400, and finally the pen cap 120 is put on the sleeve 110.

[0075] During use, the user presses the button 410 at the tail of the cosmetic pen, and the button 410 moves synchronously with the ratchet 420 and the ratchet 440 toward the rotating member 460. The elastic member 450 is compressed, and the button 410 drives the ratchet 440 to rotate through the ratchet 420, and the ratchet 440 drives the rotating member 460 to rotate. Since the external thread 321 and the internal thread 462 cooperate with each other, the rotating member 460 drives the screw 320 and the loading barrel 310 to run synchronously along the axial direction of the sleeve 110 to achieve a one-way discharging operation. The user presses the button 410 once, and the screw 320 drives a small amount of cosmetic material 330 to extend for the user to use. When the user releases the button 410, under the action of the elastic member 450, the button 410, the ratchet 420 and the ratchet 440 are reset, waiting for the next press. FIG. 20 shows a state in which the button 410 is pressed, and FIG. 21 shows a state in which the cosmetic material is used up. At this time, the carrier 310 and the screw 320 synchronously run into the sleeve 110 .

[0076] Example 2: As shown in Figures 22-25 , the loading barrel 310 and screw 320 are separate structures, with the screw 320 snapping into place and fixed to the loading barrel 310. The loading barrel 310 and screw 320 are separately machined and then assembled to form the discharge assembly 300, facilitating precision control of the loading barrel 310 and screw 320. As shown in Figure 25 , the guide 230 is directly molded into the pen holder 210. Designing the guide 230 and pen holder 210 as a single piece simplifies the cosmetic brush structure.

[0077] It should be noted that those skilled in the art may make a number of modifications and improvements without departing from the concept of this application, and these modifications and improvements are all within the scope of protection of this application. Therefore, the scope of protection of this patent application shall be based on the appended claims.

Claims

1. A rotatable press-on cosmetic brush, characterized by: The invention comprises a pen tip assembly (100), a pen body assembly (200), a discharging assembly (300) and a driving assembly (400), wherein the pen tip assembly (100) comprises a sleeve (110), the pen body assembly (200) comprises a pen holder (210) and a connecting piece (220) rotatably mounted on the pen holder (210), the sleeve (110) is fixedly mounted in the pen holder (210), the driving assembly (400) is mounted in the connecting piece (220), the discharging assembly (300) is mounted in the sleeve (110), the discharging assembly (300) is connected to the driving assembly (400), and when the connecting piece (220) rotates, it can drive the discharging assembly (300) to move toward the inside of the sleeve (110), and the driving assembly (400) can drive the discharging assembly (300) to move toward the outside of the sleeve (110).

2. The rotatable press-on cosmetic brush according to claim 1, characterized in that: The connecting member (220) is axially fixed and circumferentially movably installed in the pen body (210), and when the connecting member (220) rotates, it can drive the driving assembly (400) to rotate synchronously, and then drive the discharge assembly (300) to move toward the interior of the sleeve (110) through the driving assembly (400).

3. The rotatable press-on cosmetic brush according to claim 1, characterized in that: The connecting member (220) is unidirectionally rotatably installed in the pen holder (210).

4. The rotatable press-on cosmetic brush according to claim 3, characterized in that: The inner side wall of the pen holder (210) is provided with a saw tooth (211), and the saw tooth (211) is provided with a first inclined surface (212) and a first straight surface (213); the connecting member (220) is provided with an elastic tooth (221), and the elastic tooth (221) is provided with a second inclined surface (222) and a second straight surface (223); the first inclined surface (212) can slide on the second inclined surface (222), and the first straight surface (213) is stopped by the second straight surface (223).

5. The rotatable press-on cosmetic brush according to claim 4, characterized in that: The connecting member (220) is provided with a mounting groove, the elastic tooth (221) is provided in the mounting groove, the first end of the elastic tooth (221) is fixedly connected to the connecting member (220), the second end of the elastic tooth (221) is a free end, the second straight surface (223) is located at the second end of the elastic tooth (221), and the second inclined surface (222) is located on the outer surface of the elastic tooth (221).

6. The rotatable press-on cosmetic brush according to any one of claims 1 to 5, characterized in that: The discharge assembly (300) includes a loading barrel (310) and a screw (320) fixedly connected to the loading barrel (310), the outer wall of the screw (320) is provided with an external thread (321), the screw (320) is screwed to the driving assembly (400), and the driving assembly (400) is fixedly installed in the connecting member (220).

7. The rotatable press-on cosmetic brush according to claim 6, characterized in that: The driving assembly (400) includes a button (410), a ratchet seat (430) and a rotating member (460), wherein the ratchet seat (430) is fixedly installed in the connecting member (220), the button (410) and the rotating member (460) are installed in the ratchet seat (430), and when the ratchet seat (430) rotates, it can drive the rotating member (460) to rotate synchronously, the screw (320) is screwed to the rotating member (460), and the button (410) can drive the rotating member (460) to rotate.

8. The rotatable press-on cosmetic brush according to claim 6, characterized in that: The material carrying barrel (310) and the screw rod (320) are integrally formed, or the material carrying barrel (310) and the screw rod (320) are separate structures, and the screw rod (320) is fixedly engaged with the material carrying barrel (310).

9. The rotatable press-on cosmetic brush according to claim 6, characterized in that: The pen body assembly (200) further comprises a guide member (230), wherein the guide member (230) is fixedly mounted in the pen shaft (210), wherein the inner side wall of the guide member (230) is provided with a ridge (231), and the screw rod (320) is provided with a guide groove (322) along the axial direction, wherein the ridge (231) is inserted into the guide groove (322).

10. The rotatable press-on cosmetic brush according to claim 9, characterized in that: The guide member (230) is directly formed in the pen holder (210), or the pen holder (210) and the guide member (230) are separate structures, and the guide member (230) is clamped in the pen holder (210).

11. The rotatable press-on cosmetic brush according to claim 7, characterized in that: The driving assembly (400) further comprises a ratchet (420), a ratchet wheel (440) and an elastic member (450), wherein the ratchet (420) is fixedly mounted in the button (410), the ratchet (420) and the ratchet wheel (440) are movably mounted in the ratchet seat (430), the ratchet (420) and the ratchet wheel (440) are meshed with each other, the rotating member (460) is sleeved on the screw rod (320) and the rotating member (460) is screwed to the screw rod (320), and the rotating member (460) is screwed to the screw rod (320). The rotating member (460) is rotatably installed in the connecting member (220), and the rotating member (460) is against the connecting member (220). An elastic member (450) is provided between the rotating member (460) and the ratchet (440). The ratchet (420) can drive the ratchet (440) to rotate, and the ratchet (440) can drive the rotating member (460) to rotate, and then the rotating member (460) drives the screw (320) to run in a direction away from the button (410).

12. The rotatable press-on cosmetic brush according to claim 11, characterized in that: The ratchet (420) is provided with a first latching tooth (421), the ratchet (440) is provided with a second latching tooth (441) and a first latching claw (442), the rotating member (460) is provided with a second latching claw (461), and the inner peripheral wall of the rotating member (460) is provided with an internal thread (462), the first latching tooth (421) and the second latching tooth (441) are engaged with each other, a gap is provided between two adjacent first latching claws (442), and the second latching claw (461) is inserted into the gap to achieve synchronous rotation of the rotating member (460) and the ratchet (440).

Citation Information

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