One-way dosing device

Abstract

The utility model provides a one -way ration feeding device, it includes: pressing mechanism, feed mechanism and paste cup, the pressing mechanism includes: press button, the press button has axial movement stroke, the feed mechanism includes: transmission unit and guide rod, when the press button axial movement, can drive the guide rod according to unit stroke to act through transmission unit, the paste cup has a receiving cavity, the paste cup sets up in the end of guide rod, the utility model discloses the mechanical linkage of press button and guide rod, the utility model will press action convert into the unit stroke displacement of guide rod, realizes the accurate quantitative control of paste body push -out quantity. The paste body extension amount of fixed stroke corresponding to each press, avoid the problem that the paste body push -out quantity is uncontrollable because of the difference of rotation number of traditional rotary lipstick, effectively prevent paste body excessive exposure or deficiency.

Description

Technical Field

[0001] This utility model relates to the field of lipstick technology, and in particular to a lipstick capable of unidirectional quantitative feeding. Background Technology

[0002] With the rapid development of the cosmetics industry, lipstick, as an essential part of daily beauty and skincare, has seen its ease of use become a key focus for consumers. Traditional twist-up lipsticks involve manually rotating the bottom or middle of the tube to drive an internal spiral mechanism that pushes or retracts the lipstick. However, this design has significant operational limitations: users need to use both hands to perform the rotation (one hand holding the lipstick tube, the other operating the rotating mechanism). In single-handed operation scenarios (such as holding objects, driving, or grooming) or special usage environments (such as limited limb movement or needing gloves in cold weather), the ease of use of traditional structures is greatly reduced, and may even lead to problems such as the lipstick falling, breaking, or uneven application. Therefore, it is necessary to propose further solutions to these problems. Utility Model Content

[0003] The purpose of this invention is to provide a unidirectional quantitative feeding device to overcome the shortcomings of the existing technology.

[0004] To achieve the above-mentioned utility model objectives, this utility model provides a unidirectional quantitative feeding device, which includes: a pressing mechanism, a feeding mechanism, and a paste cup; The pressing mechanism includes: a pressing button; the pressing button has an axial travel stroke; The feeding mechanism includes a transmission unit and a guide rod; when the pressed button moves axially, the transmission unit can drive the guide rod to move according to a unit stroke. The paste cup has a receiving cavity and is disposed at the end of the guide rod.

[0005] As an improvement to the unidirectional quantitative feeding device of this utility model, the transmission unit includes: a ratchet, a transmission component, and a guide component; The transmission component and guide component are mounted on the guide rod; one end of the ratchet engages with the pressing button, and the other end engages with the transmission component through a ratchet structure; the transmission component can drive the guide rod to rotate synchronously, and the guide component engages with the thread on the guide rod.

[0006] As an improvement to the unidirectional quantitative feeding device of this utility model, the ratchet structure includes: a plurality of circumferentially arranged ratchet teeth disposed at the end of the ratchet and a plurality of helical teeth disposed on the outer side wall of the transmission member; the end faces of the ratchet teeth and the helical teeth cooperate with each other.

[0007] As an improvement to the unidirectional quantitative feeding device of this utility model, the plurality of helical teeth are arranged circumferentially at intervals on the outer side wall of the transmission component.

[0008] As an improvement to the unidirectional quantitative feeding device of this utility model, the mating surface between the transmission component and the guide rod is a plane.

[0009] As an improvement to the unidirectional quantitative feeding device of this utility model, the pressing button is hollow, and one end of the ratchet is housed in the inner cavity of the pressing button and cooperates with the pressing button through a stepped surface.

[0010] As an improvement to the unidirectional quantitative feeding device of this utility model, the end of the guide rod extends into the pressing button.

[0011] As an improvement to the unidirectional quantitative feeding device of this utility model, the unidirectional quantitative feeding device further includes a guide cylinder; the guide rod is coaxially disposed in the guide cylinder and can move axially in the guide cylinder.

[0012] As an improvement to the unidirectional quantitative feeding device of this utility model, the unidirectional quantitative feeding device also includes a pen tip; the pen tip is hollow, and the paste cup can move axially in the pen tip under the drive of the guide rod.

[0013] As an improvement to the unidirectional quantitative feeding device of this utility model, the unidirectional quantitative feeding device further includes: a main body and a top cover; the top cover is detachably installed at one end of the main body; the feeding mechanism and the paste cup are housed in the space enclosed by the main body and the top cover; one end of the pressing button extends from one end of the main body, and the pen tip extends from the other end of the main body.

[0014] Compared with the prior art, the beneficial effects of this utility model are: through the integrated button design, this utility model only requires one thumb to press to drive the feeding mechanism to push out the lipstick, completely eliminating the limitation of traditional rotating lipsticks that require two hands to operate, significantly reducing the difficulty of operation and the risk of the lipstick falling, and adapting to diverse usage needs.

[0015] Meanwhile, this invention utilizes the mechanical linkage between the button and the guide rod to convert the pressing action into a unit stroke displacement of the guide rod, achieving precise quantitative control of the amount of lipstick dispensed. Each press corresponds to a fixed stroke of lipstick dispensing, avoiding the uncontrollable dispensing amount problem caused by the number of rotations in traditional twist-up lipsticks, effectively preventing excessive or insufficient lipstick dispensing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a plan view of an embodiment of the unidirectional quantitative feeding device of this utility model; Figure 2 for Figure 1 Cross-sectional view of a unidirectional quantitative feed device; Figure 3 for Figure 1 3D exploded view of the unidirectional quantitative feed device; Figure 4 for Figure 3 A three-dimensional enlarged schematic diagram of the transmission component. Detailed Implementation

[0018] The present invention will now be described in detail with reference to various embodiments. However, it should be noted that these embodiments are not intended to limit the present invention. Equivalent transformations or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are all within the protection scope of the present invention.

[0019] One embodiment of this utility model provides a unidirectional quantitative feeding device. In this embodiment, the unidirectional quantitative feeding device is specifically a lipstick.

[0020] like Figures 1 to 4 As shown, the unidirectional quantitative feeding device of this embodiment includes: a main body 10, a top cover 20, a pen tip 30, a guide cylinder 40, a pressing mechanism 50, a feeding mechanism 60, and a paste cup 70.

[0021] The main body 10 and the top cover 20 form the shell structure of the lipstick in this embodiment. The top cover 20 is detachably installed at one end of the main body 10 to facilitate opening the lipstick. The brush tip 30, the feeding mechanism 60, and the lipstick cup 70 are housed in the space enclosed by the main body 10 and the top cover 20.

[0022] The pressing mechanism 50 is used to control the unidirectional quantitative feeding of the lipstick. The pressing mechanism 50 includes a pressing button with an axial travel. For ease of use, one end of the pressing button extends from one end of the main body 10. Thus, through this integrated button design, only one thumb is needed to press and drive the feeding mechanism 60 to dispense the lipstick, completely eliminating the limitation of traditional rotary lipsticks requiring two-handed operation. This significantly reduces the difficulty of operation and the risk of the lipstick falling, adapting to diverse usage needs.

[0023] The feeding mechanism 60 includes a transmission unit 61 and a guide rod 62. When the button is pressed and moves axially, the transmission unit 61 drives the guide rod 62 to move according to a unit stroke. Thus, through the mechanical linkage between the button and the guide rod 62, this invention converts the pressing action into a unit stroke displacement of the guide rod 62, achieving precise quantitative control of the amount of lipstick protruded. Each press corresponds to a fixed stroke of lipstick protrusion, avoiding the uncontrollable problem of lipstick protrusion caused by differences in the number of rotations in traditional rotary lipsticks, effectively preventing excessive or insufficient lipstick exposure.

[0024] Specifically, in order to enable the guide rod 62 to move according to a unit stroke via the transmission unit 61, the transmission unit 61 includes: a ratchet 611, a transmission component 612, and a guide component 613. The transmission component 612 and the guide component 613 are mounted on the guide rod 62; one end of the ratchet 611 engages with the button, and the other end engages with the transmission component 612 via a ratchet structure; the transmission component 612 can drive the guide rod 62 to rotate synchronously, and the guide component 613 engages with the threads on the guide rod 62.

[0025] Thus, when the button is pressed, it drives the ratchet 611 to move axially, and the ratchet 611 further drives the transmission component 612 to pivot through the ratchet structure. Correspondingly, the transmission component 612 can drive the guide rod 62 to rotate synchronously, so that the guide rod 62 can move along the guide component 613 with a fixed feed stroke of one or more pitches. In addition, in order to achieve synchronous rotation of the transmission component 612 and the guide rod 62, the mating surface between the transmission component 612 and the guide rod 62 is a plane 615.

[0026] In one embodiment, the ratchet 611 structure includes: a plurality of circumferentially arranged ratchet teeth disposed at the end of the ratchet 611 and a plurality of helical teeth 614 disposed on the outer side wall of the transmission member 612; the end faces of the ratchet teeth and the helical teeth 614 engage with each other. The plurality of helical teeth 614 are circumferentially spaced on the outer side wall of the transmission member 612.

[0027] Furthermore, to facilitate the engagement of the ratchet 611 with the button, in one embodiment, the button is hollow, and one end of the ratchet 611 is housed within the inner cavity of the button, engaging with it via a stepped surface. Additionally, the end of the guide rod 62 extends into the button. This allows the guide rod 62 to have a longer stroke.

[0028] The guide cylinder 40 is affected by the movement of the auxiliary guide rod 62. At this time, the guide member 613 is fixedly installed in the guide cylinder 40, so that the guide rod 62 is coaxially installed in the guide cylinder 40 and can move axially in the guide cylinder 40.

[0029] The paste cup 70 is used to fix the paste. Accordingly, the paste cup 70 has a receiving cavity for holding the paste, and the paste cup 70 is disposed at the end of the guide rod 62. The pen tip 30 is hollow and extends from the other end of the main body 10. The paste cup 70 can move axially within the pen tip 30 under the drive of the guide rod 62.

[0030] In summary, this utility model, through its integrated button design, allows the feeding mechanism to dispense the lipstick with just one thumb press, completely eliminating the limitation of traditional rotary lipsticks that require two-handed operation. This significantly reduces the difficulty of operation and the risk of the lipstick falling, and adapts to diverse usage needs.

[0031] Meanwhile, this invention utilizes the mechanical linkage between the button and the guide rod to convert the pressing action into a unit stroke displacement of the guide rod, achieving precise quantitative control of the amount of lipstick dispensed. Each press corresponds to a fixed stroke of lipstick dispensing, avoiding the uncontrollable dispensing amount problem caused by the number of rotations in traditional twist-up lipsticks, effectively preventing excessive or insufficient lipstick dispensing.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A unidirectional quantitative feeding device, characterized in that, The unidirectional quantitative feeding device includes: a pressing mechanism, a feeding mechanism, and a paste cup; The pressing mechanism includes: a pressing button; the pressing button has an axial travel stroke; The feeding mechanism includes a transmission unit and a guide rod; when the pressed button moves axially, the transmission unit can drive the guide rod to move according to a unit stroke. The paste cup has a receiving cavity and is disposed at the end of the guide rod.

2. The unidirectional quantitative feeding device according to claim 1, characterized in that, The transmission unit includes: a ratchet, a transmission component, and a guide component; The transmission component and guide component are mounted on the guide rod; one end of the ratchet engages with the pressing button, and the other end engages with the transmission component through a ratchet structure; the transmission component can drive the guide rod to rotate synchronously, and the guide component engages with the thread on the guide rod.

3. The unidirectional quantitative feeding device according to claim 2, characterized in that, The ratchet structure includes: a plurality of circumferentially arranged ratchet teeth disposed at the end of the ratchet and a plurality of helical teeth disposed on the outer side wall of the transmission member; the end faces of the ratchet teeth and the helical teeth cooperate with each other.

4. The unidirectional quantitative feeding device according to claim 3, characterized in that, The plurality of helical teeth are arranged circumferentially at intervals on the outer side wall of the transmission component.

5. The unidirectional quantitative feeding device according to claim 2, characterized in that, The mating surface between the transmission component and the guide rod is a plane.

6. The unidirectional quantitative feeding device according to claim 2, characterized in that, The button is hollow, and one end of the ratchet is housed in the inner cavity of the button and engages with the button via a stepped surface.

7. The unidirectional quantitative feeding device according to claim 2, characterized in that, The end of the guide rod extends into the press button.

8. The unidirectional quantitative feeding device according to claim 1, characterized in that, The unidirectional quantitative feeding device also includes a guide cylinder; the guide rod is coaxially disposed in the guide cylinder and can move axially in the guide cylinder.

9. The unidirectional quantitative feeding device according to claim 1, characterized in that, The unidirectional quantitative feeding device also includes a pen tip; the pen tip is hollow, and the paste cup can move axially within the pen tip under the drive of the guide rod.

10. The unidirectional quantitative feeding device according to claim 9, characterized in that, The unidirectional quantitative feeding device further includes: a main body and a top cover; the top cover is detachably installed at one end of the main body; the feeding mechanism and the paste cup are housed in the space enclosed by the main body and the top cover; one end of the pressing button extends from one end of the main body, and the pen tip extends from the other end of the main body.

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