A draft tube core having arcuate plates

The design of the arc-shaped water-guiding core solves the problems of unstable connection and blockage of the water-guiding core, achieving stable insertion and increasing material volume, and avoiding blockage of pearlescent powder.

CN224474158UActive Publication Date: 2026-07-10SHANGHAI CHUANGYUAN COSMETICS

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI CHUANGYUAN COSMETICS
Filing Date
2025-07-28
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

The existing water-guiding core is cylindrical and has an unstable connection, making it easily clogged by pearlescent powder and unable to adapt to materials containing pearlescent powder.

Method used

Design an arc-shaped water-guiding core, which connects to the pen tip through a progressively thinning tip insertion method, and sets a water-guiding groove on the convex plate to adapt to the flow of pearlescent powder.

Benefits of technology

It achieves a stable connection, avoids clogging, increases material capacity and contact area, and reduces the risk of detachment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224474158U_ABST
    Figure CN224474158U_ABST
Patent Text Reader

Abstract

This utility model relates to the technical field of water guide cores, specifically a water guide core with an arc-shaped plate. It includes a connecting rod with a pointed end, a convex plate and a water guide groove on the outer side of the connecting rod. The end of the convex plate near the pointed end is a connecting section, with a bevel formed on its outer side. The thickness of the connecting section gradually decreases towards the pointed end, and the radial cross-section of the convex plate is arc-shaped. Therefore, the varying thickness of the connecting section and the pointed end facilitate a plug-in connection with the pen tip. Furthermore, the water guide groove allows the pearlescent powder to move along the groove to the pen tip, preventing clogging. Simultaneously, the arc-shaped radial cross-section of the convex plate, compared to a straight section, increases the depth of the water guide groove, allowing for more powder to be placed and increasing the contact area with the powder, thus reducing the likelihood of the powder detaching from the water guide core.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the technical field of water intake cores, and specifically to a water intake core with an arc-shaped plate. Background Technology

[0002] The liquid guide is a component of a makeup brush. The brush contains a liquid product, and its two ends contact the product in the barrel and the brush tip, respectively, guiding the liquid from the barrel's reservoir to the tip. However, current liquid guides are generally cylindrical, and their connection to the tip is mostly a contact connection, leading to instability. Furthermore, the liquid guide relies on capillary action. If the product contains no other substances, this is generally fine. However, with advancements in technology, the product often incorporates decorative elements, such as pearlescent powder. If capillary action is used directly, the liquid guide can become clogged by the pearlescent powder, preventing the product from reaching the tip. Summary of the Invention

[0003] The purpose of this invention is to provide a water-guiding core with an arc-shaped plate. By gradually reducing the thickness of the connecting section along the direction near the tip and by setting the tip, it is easy to connect to the pen tip by plugging in. Secondly, the water-guiding groove is set so that the material with pearlescent powder can move along the water-guiding groove to the pen tip, thereby avoiding clogging. Thus, it solves the problem of unstable connection due to the water-guiding core being a column and is adapted to the material with pearlescent powder.

[0004] The purpose of this utility model is achieved as follows:

[0005] A water-guiding core with an arc-shaped plate includes a connecting rod, one end of which is provided with a tip, and a plurality of protruding plates are provided on the outer side of the connecting rod, and a water-guiding groove is provided between two adjacent protruding plates. The end of the protruding plate near the tip is a connecting section, and the outer side of the connecting section is formed with an inclined surface. The thickness of the connecting section gradually decreases along the direction near the tip, and the radial cross section of the protruding plate is arc-shaped.

[0006] Preferably, the central angle of the arc is 75°-85°.

[0007] Preferably, the convex plate and the axis of the connecting rod are arranged parallel to each other;

[0008] Alternatively, the protruding plate may be inclined, and there may be an angle between the protruding plate and the axis of the connecting rod.

[0009] Preferably, the included angle between the convex plate and the axis of the connecting rod is 4°-8°.

[0010] Preferably, the distance between the two side walls of the water inlet channel gradually increases as it moves away from the connecting rod.

[0011] Preferably, the end of the convex plate away from the connecting rod is an arc surface.

[0012] The outstanding and beneficial technical effects of this utility model compared to the prior art are:

[0013] This invention achieves this by gradually decreasing the thickness of the connecting section towards the tip and by setting the tip itself, resulting in the water-guiding core not being a cylinder but having a plug-in part, which facilitates connection with the pen tip via a plug-in method. Secondly, the water-guiding groove allows the material containing pearlescent powder to move along the water-guiding groove to the pen tip, thereby avoiding clogging.

[0014] Meanwhile, the radial cross-section of the convex plate is arc-shaped. Compared with the straight line setting, the arc setting increases the depth of the water inlet channel, thus allowing more material to be placed and increasing the contact area between the material and the water inlet core, thereby reducing the effect of the material detaching from the water inlet core to a certain extent. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is an enlarged schematic diagram of a portion of the structure of this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the main view of this utility model.

[0018] Figure 4 for Figure 3 An enlarged structural diagram of A in the diagram.

[0019] Figure 5 A schematic diagram of a structure with an inclined convex plate.

[0020] Figure 6 for Figure 5 An enlarged structural diagram of B in the diagram.

[0021] Reference numerals: 11-connecting rod; 12-tip; 13-convex plate; 131-connecting section; 14-water channel. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0023] like Figures 1-6As shown, a water-guiding core with an arc-shaped plate includes a connecting rod 11, one end of which is provided with a tip 12, and a plurality of protruding plates 13 are provided on the outer side of the connecting rod 11. A water-guiding groove 14 is provided between two adjacent protruding plates 13. The end of the protruding plate 13 near the tip 12 is a connecting section 131, and the outer side of the connecting section 131 is formed with a slope. The thickness of the connecting section 131 gradually decreases along the direction near the tip 12, and the radial cross section of the protruding plate 13 is arc-shaped.

[0024] Therefore, in actual use, by gradually reducing the thickness of the connecting section 131 along the direction close to the tip 12 and by setting the tip 12, the water guide core is not a column, but has a plug-in part, which makes it easy to connect with the pen tip in a plug-in manner. Secondly, the setting of the water guide groove allows the material with pearlescent powder to move along the water guide groove to the pen tip, thereby avoiding clogging.

[0025] Meanwhile, the radial section of the convex plate 13 is arc-shaped. Compared with the straight line setting, the arc setting increases the depth of the water inlet groove 14, thus allowing more material to be placed and increasing the contact area between the material and the water inlet core, thereby reducing the effect of the material detaching from the water inlet core to a certain extent.

[0026] like Figures 1-6 As shown, the detailed structure is as follows: First, the central angle of the arc is 75°-85°. This is because, with a large opening in the water inlet channel 14, the length of the arc is longer, thus making the depth of the water inlet channel 14 greater.

[0027] Secondly, the protruding plate 13 can be vertical or inclined. When it is vertical, the axis of the protruding plate 13 and the axis of the connecting rod 11 are parallel.

[0028] When it is tilted, that is, the protruding plate 13 is tilted and there is an angle between the axis of the protruding plate 13 and the axis of the connecting rod 11. Therefore, in actual use, since the protruding plate 13 is tilted, compared with the vertical setting, the tilted setting increases the length of the water inlet trough 14, thus it can hold more material and play a certain buffering role.

[0029] Furthermore, when tilted, the angle between the axis of the convex plate 13 and the axis of the connecting rod 11 is 4°-8°. This is because in actual use, if the angle is too large, it will be difficult to form, and if the angle is too small, it will have no effect. Therefore, 4°-8° is more suitable.

[0030] Furthermore, in order to facilitate the movement of the material, the distance between the two side walls of the water inlet trough 14 is set to gradually increase as it moves away from the connecting rod 11.

[0031] Meanwhile, in order to reduce friction, the end of the convex plate 13 away from the connecting rod 11 is curved.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. However, this utility model is not limited to the above embodiments; therefore, various changes and modifications can be made without departing from the principles and scope of this utility model, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A water-conducting core with an arc-shaped plate, characterized in that, It includes a connecting rod (11), and one end of the connecting rod (11) is provided with a tip (12). Several protruding plates (13) are provided on the outside of the connecting rod (11), and a water channel (14) is provided between two adjacent protruding plates (13). The end of the protruding plate (13) near the tip (12) is a connecting section (131), and the outside of the connecting section (131) is formed with a slope. The thickness of the connecting section (131) gradually decreases along the direction near the tip (12), and the radial cross section of the protruding plate (13) is arc-shaped.

2. A water-guiding core with an arc-shaped plate according to claim 1, characterized in that: The central angle of the arc is 75°-85°.

3. A water-guiding core with an arc-shaped plate according to any one of claims 1-2, characterized in that: The axes of the protruding plate (13) and the connecting rod (11) are parallel; Alternatively, the protruding plate (13) is inclined and has an angle between the axis of the protruding plate (13) and the axis of the connecting rod (11).

4. A water-guiding core with an arc-shaped plate according to claim 3, characterized in that: The included angle between the axis of the convex plate (13) and the axis of the connecting rod (11) is 4°-8°.

5. A water-guiding core with an arc-shaped plate according to any one of claims 1-2, characterized in that: The distance between the two side walls of the water inlet channel (14) gradually increases as it moves away from the connecting rod (11).

6. A water-guiding core with an arc-shaped plate according to any one of claims 1-2, characterized in that: The end of the convex plate (13) away from the connecting rod (11) is an arc surface.