Plastic packaging bottle for cosmetics

Abstract

The utility model relates to a plastic packaging bottle for cosmetics. The outer cylinder is composed of an outer circular tube, a bottom plate and a screw rod; the inner barrel is composed of an inner circular pipe and a top cover, the inner circular pipe is rotationally arranged in the outer circular pipe in a sleeved mode, and an inner extrusion opening is formed in the top cover; the inner plug is integrally arranged in the inner cylinder, the outer contour of the inner plug is attached to the inner wall of the inner cylinder, and the inner plug is further matched with the screw rod in a screwed connection mode; the twisting cover integrally covers the upper side of the top cover, the twisting cover and the top cover are relatively fixed, an outer extrusion opening is formed in the upper side of the twisting cover, and a pipeline is communicated between the outer extrusion opening and the inner extrusion opening. Contents can be squeezed out only by fixing the outer barrel with one hand, pinching the twisting cover with the other hand and relatively twisting the twisting cover in the preset direction, the larger the twisting angle is, the larger the squeezing amount is, use and operation are convenient and fast, and meanwhile the cosmetic container is suitable for fat / gel cosmetics with large consistency.

Description

Technical Field

[0001] This utility model relates to a packaging bottle, and more particularly to a cosmetic plastic packaging bottle. Background Technology

[0002] Cosmetics come in many varieties, and based on their physical form, they can be categorized into solid cosmetics, powder cosmetics, liquid cosmetics, and lipid / gel cosmetics. There are also many types of packaging containers used to hold cosmetics, with screw-top bottles and press-type bottles being the two most common. Screw-top bottles consist of a bottle body and a cap that screw together; press-type bottles also consist of a bottle body and a cap that are fixed together, with the cap equipped with a press-pump assembly.

[0003] Lipids / gels are a state of matter between solids and liquids, generally quite viscous. At lower viscosity, they also possess a certain degree of fluidity, making pump-type bottles suitable for packaging lipid / gel cosmetics of this viscosity. As viscosity increases, the fluidity of lipids / gels decreases. Therefore, some viscous lipid / gel cosmetics cannot be packaged in pump-type bottles and must be packaged in screw-cap bottles. However, screw-cap bottles require repeated opening and tightening of the cap each time they are used, and lipids / gels can easily adhere to the inside of the cap. Compared to pump-type bottles, screw-cap bottles are less convenient to use. Summary of the Invention

[0004] This utility model provides a cosmetic plastic packaging bottle; it solves the problem that screw-cap packaging bottles are inferior to press-type packaging bottles in terms of ease of use in the prior art.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a cosmetic plastic packaging bottle, comprising:

[0006] The outer cylinder is composed of an outer circular tube, a base plate, and a screw rod, with the screw rod vertically upward and fixed at the center of the base plate.

[0007] The inner cylinder is composed of an inner circular tube and a top cover. The inner circular tube is rotatably fitted inside the outer circular tube. The top cover is provided with an inner extrusion port. The inner wall profile of the inner cylinder is non-circular.

[0008] The inner plug is integrally disposed inside the inner cylinder. The outer contour of the inner plug fits against the inner wall of the inner cylinder. The inner plug is also screwed into the screw. The inner cylinder and the inner plug define a filling cavity that can accommodate lipid cosmetics.

[0009] A twist cap is integrally placed on the upper side of the top cover and the two are fixed relative to each other. The upper side of the twist cap is provided with an external extrusion port, and a pipe is connected between the external extrusion port and the internal extrusion port.

[0010] The method of using this invention is as follows: Hold the outer cylinder with one hand and pinch the screw cap with the other hand, twisting it in a predetermined direction. The twisting direction can be clockwise or counterclockwise, depending on the spiral direction of the screw. Because the inner wall of the inner cylinder is not circular, the inner plug cannot rotate relative to the inner cylinder. Therefore, the inner plug and the screw twist relative to each other, causing the height of the inner plug to rise slightly. This compresses the space in the filling chamber, and the lipid / gel cosmetic in the filling chamber is squeezed out along the path of inner extrusion port—pipe—outer extrusion port. The greater the twisting angle, the greater the amount squeezed out. The user can then wipe away the squeezed cosmetic with their fingers. During use, this invention only requires one twist, making it convenient and quick.

[0011] Furthermore, the inner wall of the outer cylinder is provided with two annular grooves, and the outer wall of the inner cylinder is provided with two protruding ribs that engage with the grooves. Through the engagement of the ribs with the grooves, the outer and inner cylinders can be rotated circumferentially while remaining relatively fixed axially. Gaps exist at the engagement points of the ribs and grooves, and between the outer and inner cylinders. These gaps allow the cavity between the inner plug and the bottom plate to communicate with the outside, preventing negative pressure from forming within the cavity due to the inner plug rising.

[0012] Furthermore, the inner wall of the outer cylinder is provided with several elastic plates that deflect to the same side, and the outer wall of the inner cylinder is provided with several ratchet teeth arranged in a circumferential array. The elastic plates and ratchet teeth are locked in one direction, and this locking direction is opposite to the extrusion twisting direction of this invention, which can effectively avoid the problem of incorrect twisting direction by the user. At the same time, when the outer cylinder and the inner cylinder twist, the elastic plates will engage with different ratchet teeth. Each engagement will generate vibration feedback and sound feedback, making the twisting amplitude have a segmented feel, which is conducive to the user controlling the twisting angle, thereby achieving reliable control of the extrusion volume without visually looking at the external extrusion port.

[0013] Therefore, this utility model has the following characteristics compared with the prior art: 1. This utility model only requires one hand to hold the outer cylinder and the other hand to pinch the cap and twist it in the predetermined direction to squeeze out the contents. The larger the twist angle, the larger the amount squeezed out. It is convenient and quick to use and is also suitable for lipid / gel cosmetics with high viscosity. Attached Figure Description

[0014] Appendix Figure 1 This is a longitudinal sectional view of the present invention;

[0015] Appendix Figure 2 This is a cross-sectional view of the present invention. Detailed Implementation

[0016] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0017] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0018] Example 1: See Figure 1 A cosmetic plastic packaging bottle, comprising:

[0019] The outer cylinder 100 is composed of an outer circular tube 110, a base plate 120 and a screw 130, with the screw vertically fixed to the center of the base plate.

[0020] The inner cylinder 200 is composed of an inner circular tube 210 and a top cover 220. The inner circular tube is rotatably fitted inside the outer circular tube. The top cover is provided with an inner extrusion port 230. The inner wall profile of the inner cylinder is elliptical.

[0021] The inner plug 300 is integrally located inside the inner cylinder. The outer contour of the inner plug fits the inner wall of the inner cylinder. A rubber ring 310 is fitted on the circumferential side wall of the inner plug. The inner plug is also screwed into the screw. The inner cylinder and the inner plug define a filling cavity 10 that can accommodate lipid cosmetics.

[0022] The twist cap 400 is integrally covered on the top cover and the two are fixed by ultrasonic welding. The upper side of the twist cap is provided with an external extrusion port 410, and a pipe 420 is connected between the external extrusion port and the internal extrusion port. The pipe is a flexible hose.

[0023] The method of use is as follows: Hold the outer cylinder with one hand and pinch the screw cap with the other hand, then twist it in the predetermined direction. The twisting direction can be clockwise or counterclockwise, depending on the helix direction of the screw. Because the inner wall of the inner cylinder is not circular, the inner plug cannot rotate relative to the inner cylinder. Therefore, the inner plug twists relative to the screw, causing the height of the inner plug to rise slightly. This compresses the space in the filling chamber, and the lipid / gel cosmetic in the filling chamber is extruded along the path of inner extrusion port—pipe—outer extrusion port. The greater the twisting angle, the greater the amount extruded. The user can then wipe away the extruded cosmetic with their fingers. During use, only one twist is required, making it convenient and quick.

[0024] See Figure 1The outer cylinder has two annular grooves 111 on its inner wall, and the inner cylinder has two protruding ribs 211 on its outer wall that engage with the grooves. The engagement of the ribs with the grooves allows the outer and inner cylinders to rotate circumferentially while remaining relatively fixed axially. Gaps exist at the engagement points of the ribs and grooves, and between the outer and inner cylinders. These gaps allow the cavity between the inner plug and the bottom plate to communicate with the outside, preventing negative pressure from forming within the cavity due to the inner plug rising.

[0025] See Figure 1 and Figure 2 The inner wall of the outer cylinder has six elastic plates 112 that deflect to the same side, and the outer wall of the inner cylinder has several ratchet teeth 212 arranged in a circumferential array. The elastic plates and ratchet teeth are locked in one direction, and this locking direction is opposite to the extrusion twisting direction of this device, which can effectively avoid the problem of incorrect twisting direction by the user. At the same time, when the outer cylinder and the inner cylinder twist, the elastic plates will engage with different ratchet teeth. Each engagement will generate a vibration feedback and sound feedback, making the twisting amplitude have a segmented feel, which is conducive to the user controlling the twisting angle, thereby achieving reliable control of the extrusion volume without visually looking at the external extrusion port.

[0026] See Figure 1 The center of the twist-top cap has a recessed part 430, and the external extrusion port is located in the recessed part. In this way, the extruded contents can be temporarily stored in the recessed part, making it less likely to flow around and easier to wipe away with your fingers.

[0027] This invention can be modified in many ways, as will be apparent to those skilled in the art, and such modifications are not considered to depart from the scope of this invention. All such modifications that are obvious to those skilled in the art are included within the scope of these claims.

Claims

1. A cosmetic plastic packaging bottle, characterized by, The utility model relates to a kind of fat / gel type cosmetic extruding device, including: Outer tube, by outer pipe, bottom plate and screw rod are constituted, the screw rod is vertically fixed at the center of the bottom plate upwards; Inner tube, by inner pipe and top cover are constituted, the inner pipe is rotationally sleeved in the outer pipe, the top cover is equipped with inner extrusion outlet, the inner wall profile of the inner tube is non-circular; Inner plug, it is entirely located in the inside of the inner tube, the outer profile of the inner plug is fitted with the inner wall of the inner tube, the inner plug is also rotated with the screw rod, and the inner tube and the inner plug are delimited the loading cavity that can accommodate fat / gel type cosmetic between; Twist cover, it is entirely covered on the top side of the top cover and is relatively fixed, the outer side of the twist cover is equipped with outer extrusion outlet, and the outer extrusion outlet is communicated with the inner extrusion outlet with pipeline.

2. The cosmetic plastic packaging bottle according to claim 1, characterized by: The inner wall of the outer tube is equipped with two annular clamping grooves, and the outer wall of the inner tube is convexly equipped with two convex ribs engaged with the clamping grooves.

3. The cosmetic plastic packaging bottle according to claim 1 or 2, characterized in that: The inner wall of the outer tube is equipped with a plurality of elastic sheets deflected to the same side, and the outer wall of the inner tube is equipped with a plurality of ratchet teeth distributed in circumferential array, and the elastic sheets are one-way locked with the ratchet teeth.

4. The cosmetic plastic packaging bottle according to claim 1, characterized in that: The central position of the twist cover is equipped with concave recess, and the outer extrusion outlet is arranged in the recess.

5. The cosmetic plastic packaging bottle according to claim 1, characterized in that: The circumferential side wall of the inner plug is sleeved with rubber ring.

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