Cosmetic bottle facilitating control of the amount taken

Abstract

The utility model relates to a cosmetic bottle convenient to control the taking amount, it includes bottle cap, suction nozzle and bottle body, the bottle cap is by screw cap, measuring cylinder and piston body constitutes, the measuring cylinder is located the screw cap central region, the top of measuring cylinder is formed with upper opening, and the lower portion is equipped with air hole, the suction nozzle fixedly connected in the bottom of measuring cylinder and with air hole intercommunication, the piston body whole body sliding seal is located in the measuring cylinder, the upper end of piston body is screwed with the limit cap, the limit cap can with the upper edge of measuring cylinder abuts, the piston body with the bottom of measuring cylinder is connected with return spring. The utility model in actual process of taking, the requirement of hand eye cooperation is much lower, therefore can more quickly and conveniently carry out ration taking.

Description

Technical Field

[0001] This utility model relates to a cosmetic bottle, and more particularly to a cosmetic bottle that facilitates control of the amount dispensed. Background Technology

[0002] Cosmetics refer to chemical industrial products or fine chemical products that are applied to any part of the human body surface, such as skin, hair, nails, lips, and teeth, by means of smearing, spraying, or other similar methods, to achieve the purpose of cleansing, maintenance, beautification, modification and alteration of appearance, or correction of body odor and maintenance of a good condition. In the production, sale, and use of cosmetics, corresponding cosmetic bottles are generally used for packaging. The main function of these cosmetic bottles is to serve as containers for the cosmetics, but existing cosmetic bottles cannot achieve the function of quantitative dispensing, resulting in inconsistent amounts of cosmetics used each time, making it impossible to control the required amount, causing inconvenience, and easily leading to overuse and waste.

[0003] To address this issue, a cosmetic bottle for quantitative liquid dispensing has been disclosed (publication number: CN214525759U). It includes a bottle body, a dispensing tube, and a cap. The dispensing tube is inserted into the inside of the bottle body, and a piston is slidably connected to the inner side of the dispensing tube. A pull rod is fixed above the piston, and the cap is inserted and fixed to the top of the bottle body. This patent solves the problem of cosmetic bottles being unable to dispense quantitative liquid by incorporating a bottle body, dispensing tube, piston, pull rod, cap, and convex mirror. However, in practical use, this patent requires hand-eye coordination for each dispensing, which is cumbersome. Since the amount used by the same person is almost always fixed, requiring hand-eye coordination for each operation is inconvenient. Summary of the Invention

[0004] This invention provides a cosmetic bottle that facilitates the control of dosage; it solves the problem that the quantitative dispensing operation in the prior art requires hand-eye coordination and is not convenient.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a cosmetic bottle that facilitates control of the dosage, including a bottle cap, a nozzle, and a bottle body. The bottle cap is composed of a screw cap, a measuring cylinder, and a piston body. The measuring cylinder is located in the central area of ​​the screw cap, with an upper opening at the top and an air hole at the bottom. The nozzle is fixedly connected to the bottom of the measuring cylinder and communicates with the air hole. The piston body is slidably and sealed inside the measuring cylinder. A limit cap is screwed onto the upper end of the piston body, and the limit cap can abut against the upper edge of the measuring cylinder. A return spring is connected between the piston body and the bottom of the measuring cylinder.

[0006] The operation of this invention is as follows: Hold the bottle cap between your index and middle fingers, press the limiting cap with your thumb until it abuts against the upper edge of the measuring cylinder, then insert the suction nozzle into the bottle, immersing its lower end in the liquid. Release the limiting cap; under the action of the return spring, the piston body is pushed upwards, reducing the air pressure inside the measuring cylinder, and the suction nozzle begins to draw liquid until the piston body stops sliding. At this point, quantitative drawing is complete. The amount of liquid drawn is linked to the upward stroke of the piston body, which in turn is linked to the pressing stroke. Due to the limiting cap, the pressing stroke is fixed each time. Therefore, this invention requires much less hand-eye coordination during actual measurement, allowing for faster and more convenient quantitative measurement. Furthermore, the pressing stroke can be adjusted by rotating the limiting cap, making it easy to use. To prevent the limiting cap from rotating during multiple presses, the screw-fit between the limiting cap and the piston body needs to be designed with significant damping. Additionally, the piston body can be made of transparent material and have graduations, making the height of the limiting cap more intuitively correlated with the amount drawn.

[0007] Furthermore, both the outer contour of the piston body and the inner contour of the measuring cylinder are elliptical; a sealing ring is fitted on the outer wall of the piston body, the sealing ring is interference-fitted with the inner wall of the measuring cylinder, and the piston body is clearance-fitted with the inner wall of the measuring cylinder. Through this technical solution, relative rotation between the piston body and the measuring cylinder is impossible, thus making the rotation operation of the limiting cap and the piston body more convenient.

[0008] Furthermore, a pull rod is connected to the bottom of the piston body, the pull rod passing through the vent, and a locking device at its lower end to prevent it from dislodging from the vent. The function of the pull rod is to limit the piston body to a fixed height each time it is pushed upward by the return spring, thereby ensuring that the amount of liquid measured each time is constant.

[0009] Furthermore, the nozzle has an internal plug with a small-diameter through-hole. The plug prevents liquid from flowing back into the measuring cylinder when the device is inverted, because the through-hole is very small, and the surface tension of the liquid and the pressure difference between the inside and outside of the through-hole will prevent the liquid from flowing inward. Simultaneously, the internal volume of the nozzle, excluding the plug, must be larger than the maximum volume of the measuring cylinder to prevent liquid from being drawn into the measuring cylinder.

[0010] Therefore, this utility model has the following characteristics compared with the prior art: 1. In the actual measurement process, this utility model requires much less hand-eye coordination, so it can measure quantitatively more quickly and conveniently. In addition, the pressing stroke can be adjusted by rotating the limit cap, making it easy to use. Attached Figure Description

[0011] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Appendix Figure 2 This is a partial disassembly diagram of the bottle cap. Detailed Implementation

[0013] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0014] 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.

[0015] Example 1: See Figure 1 and Figure 2 A cosmetic bottle for easy control of dosage includes a cap 100, a nozzle 10, and a bottle body 200. The cap is composed of a screw cap 20, a measuring cylinder 30, and a piston body 40. The measuring cylinder is located in the center area of ​​the screw cap and the two are integrally formed. An upper opening 31 is formed at the top of the measuring cylinder, and an air hole 32 is provided at the bottom. The nozzle is fixedly connected to the bottom of the measuring cylinder and communicates with the air hole. The piston body is slidably sealed inside the measuring cylinder. A limit cap 50 is screwed onto the upper end of the piston body. The limit cap can abut against the upper edge of the measuring cylinder. A return spring 60 is connected between the piston body and the bottom of the measuring cylinder. A spring positioning part 41 is protruding from the bottom of the piston body.

[0016] See Figure 2 Both the outer contour of the piston body and the inner contour of the measuring cylinder are elliptical. A sealing ring 42 is fitted on the outer wall of the piston body, with an interference fit between the sealing ring and the inner wall of the measuring cylinder, and a clearance fit between the piston body and the inner wall of the measuring cylinder. Through this technical solution, relative rotation between the piston body and the measuring cylinder is impossible, making the rotation of the limit cap and piston body more convenient.

[0017] See Figure 1 and Figure 2 A pull rod 70 is connected to the bottom of the piston body. The pull rod passes through the vent hole and has a locking head 71 at its lower end to prevent it from coming out of the vent hole. The function of the pull rod is to limit the piston body to a fixed height each time it is pushed upward by the return spring, thereby ensuring that the amount of liquid measured each time is fixed.

[0018] See Figure 2The piston body has a tie rod mounting hole 43 at the bottom, through which the tie rod passes. A limiting block 72 is located at the upper end of the tie rod, and the clamp is composed of several inclined spring pieces 73. During tie rod installation, the clamp needs to pass through the tie rod mounting hole and the vent hole in sequence. The spring pieces deform adaptively under pressure, allowing the clamp to pass relatively easily through holes slightly smaller than its own size. However, once the spring piece passes through the vent hole, it cannot be pulled out again, thus serving as a limiting device.

[0019] See Figure 1 The nozzle has an internal plug 11 with a small-diameter through-hole 12, the diameter of which is between 2.5mm and 3.5mm. The plug prevents liquid from flowing back into the measuring cylinder when the cylinder is inverted, because the diameter of the through-hole is very small, and the surface tension of the liquid and the pressure difference between the inside and outside of the through-hole will prevent the liquid from flowing inward. At the same time, the internal volume of the nozzle other than the plug must be larger than the maximum volume of the measuring cylinder to avoid liquid being drawn into the measuring cylinder.

[0020] See Figure 1 The bottom of the measuring cylinder extends into a sleeve 33, and the suction nozzle is fitted and fixed onto the sleeve. A protective cap 80 is also fitted onto the outside of the measuring cylinder to prevent accidental contact when not in use and to protect the limit cap. An outwardly extending part 21 extends outward from the outer wall of the cap, which is easy for the fingers to grasp.

[0021] The operation method of this embodiment is as follows: Hold the bottle cap between your index and middle fingers, press the limiting cap with your thumb until it abuts against the upper edge of the measuring cylinder, then insert the suction nozzle into the bottle so that its lower end is submerged in the liquid. Release the limiting cap; under the action of the return spring, the piston body is pushed upward, causing the air pressure inside the measuring cylinder to decrease, and the suction nozzle begins to draw liquid until the piston body stops sliding. At this point, the quantitative drawing is complete. The amount of liquid drawn is linked to the upward stroke of the piston body, which in turn is linked to the pressing stroke. Due to the function of the limiting cap, the pressing stroke is fixed each time. Therefore, this embodiment requires much less hand-eye coordination during actual measurement, making quantitative measurement faster and more convenient. Furthermore, the pressing stroke can be adjusted by rotating the limiting cap, making it easy to use. To prevent the limiting cap from rotating during multiple presses, the screw-fit relationship between the limiting cap and the piston body needs to be designed with significant damping. Additionally, the piston body can be made of transparent material and have graduations, making the height of the limiting cap corresponding to the amount drawn more intuitive.

[0022] 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 bottle for easy control of dispensing amount, comprising a cap, a spout, and a bottle body, characterized in that: The bottle cap consists of a screw cap, a measuring cylinder, and a piston body. The measuring cylinder is located in the central area of ​​the screw cap, with an upper opening at the top and an air hole at the bottom. The suction nozzle is fixedly connected to the bottom of the measuring cylinder and communicates with the air hole. The piston body is slidably and sealed inside the measuring cylinder. A limit cap is screwed onto the upper end of the piston body, and the limit cap can abut against the upper edge of the measuring cylinder. A return spring is connected between the piston body and the bottom of the measuring cylinder.

2. The cosmetic bottle of claim 1, wherein: The outer contour of the piston body and the inner contour of the measuring cylinder are both elliptical; a sealing ring is fitted on the outer wall of the piston body, the sealing ring is interference-fitted with the inner wall of the measuring cylinder, and the piston body is clearance-fitted with the inner wall of the measuring cylinder.

3. The cosmetic bottle of claim 2, wherein: The bottom of the piston body is connected to a pull rod, which passes through the air hole and has a locking head at its lower end to prevent it from coming out of the air hole.

4. The cosmetic bottle for easy control of dosage according to claim 3, characterized in that: The piston body has a pull rod mounting hole at the bottom, the pull rod passes through the pull rod mounting hole, the upper end of the pull rod has a limiting block, and the clamp is composed of several inclined spring pieces.

5. The cosmetic bottle for easy control of dosage according to claim 1, characterized in that: The nozzle has a plug inside, and the plug has a small-diameter through hole.

6. The cosmetic bottle for easy control of dosage according to claim 5, characterized in that: A sleeve extends from the bottom of the measuring cylinder, and the suction nozzle is fitted and fixed onto the sleeve.

7. The cosmetic bottle with easy control of the amount of product to be dispensed according to claim 1, wherein: The measuring cylinder is also fitted with a protective cover on the outside.

8. The cosmetic bottle for easy control of dosage according to claim 1, characterized in that: The outer wall of the screw cap has an outwardly extending portion.

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