Cosmetic liquid leakage-proof storage with quantitative supply valve

Abstract

This utility model discloses a leak-proof beauty serum storage tank with a metering valve. It includes a working chamber positioned between a lower support plate and a top cover. A receiving bottle can be connected to the working chamber to hold the beauty serum. The working chamber is equipped with a first one-way valve for supplying air into the working chamber. This air can enter the receiving bottle, forcing the level of the beauty serum in the bottle to drop. A limiting cylinder is integrally formed on the lower support plate, containing a tube with a stop plate. A second spring is positioned between the stop plate and the working chamber. When the second spring causes the working chamber to separate from the stop plate, it allows the first one-way valve to draw in air. The working chamber has a guide tube and an air vent, allowing the beauty serum in the receiving bottle to be sprayed out through the guide tube. The lower support plate has a drive assembly that can compress the second spring. Stable output of the beauty serum is achieved through the principle of air pressure difference, eliminating the need for an additional pump or complex circuitry.

Description

Technical Field

[0001] This utility model relates to the field of beauty care equipment technology, and in particular to a leak-proof liquid storage tank for beauty serum with a metering supply valve. Background Technology

[0002] A leak-proof liquid reservoir with a metering valve is a sealed liquid supply device used in beauty instruments to store and release functional liquids such as essences and repair solutions in a metered manner as needed. It is usually used in conjunction with devices such as iontophoresis devices, radio frequency devices, or microcurrent beauty devices. It achieves precise and controllable liquid output through air pressure or mechanical drive, avoiding waste and improving skin care efficacy and user experience.

[0003] In existing technologies, most beauty serum storage devices use ordinary press pumps or elastic bladder structures. Their output volume is significantly affected by the pressing force and the amount of downward stroke, making it difficult to achieve stable quantitative dispensing. Although some structures have flow-limiting orifices, they cannot compensate for flow fluctuations caused by changes in liquid viscosity or drops in liquid level, resulting in inconsistent dosage each time, which affects skincare effects and product experience. Utility Model Content

[0004] The purpose of this invention is to provide a leak-proof liquid storage tank for beauty serum with a quantitative supply valve, so as to solve the problem mentioned in the background art that the liquid output of existing beauty serum storage devices is affected by human operation and liquid level changes, and cannot achieve stable and accurate quantitative supply.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a leak-proof beauty essence storage tank with a metering valve, comprising a working chamber disposed between a lower support plate and an upper cover, a receiving bottle connected to the working chamber for holding beauty essence, a first one-way valve on the working chamber for supplying air into the working chamber, the air in the working chamber for entering the receiving bottle, the air entering the receiving bottle forcing the liquid level of the beauty essence in the receiving bottle to drop, an integrally formed limiting cylinder on the lower support plate, a tube placed inside the limiting cylinder, the tube having a stop plate, a second spring between the stop plate and the working chamber, the second spring causing the working chamber and the stop plate to separate, causing the first one-way valve to draw in air, a guide tube and an air hole on the working chamber, the beauty essence in the receiving bottle for spraying out from the guide tube, and a drive assembly on the lower support plate for squeezing the second spring.

[0006] Based on the preferred embodiment of this technical solution, the working chamber is provided with an installation groove, the bottle mouth of the container is provided with a leak-proof rubber ring, the container is fitted with a connecting block, the connecting block is integrally formed with an insert, the installation groove is provided with a slot corresponding to the insert, and the leak-proof rubber ring can be squeezed when the insert is inserted into the slot.

[0007] Based on the preferred embodiment of this technical solution, the lower support plate is provided with clearance holes, and the working chamber can drive the container bottle to move radially within the clearance holes.

[0008] Based on the preferred embodiment of this technical solution, the mounting groove is provided with a first hole and a second hole. A third check valve is provided on the first hole. A second flexible hose is inserted into one end of the second hole, and the other end is connected to the guide pipe through the third flexible hose. A second check valve is connected in series on the third flexible hose.

[0009] Based on the preferred embodiment of this technical solution, an annular sealing block is attached to the tube, an annular flange is provided on the working chamber, the annular sealing block can fit the inner wall of the annular flange, a through hole is provided on the abutment plate for the guide tube to pass through, a second spring is sleeved on the guide tube, and a sealing ring is provided on the through hole to fit the outer wall of the guide tube.

[0010] Based on the preferred embodiment of this technical solution, the working chamber is integrally formed with a column, the lower support plate is provided with a stop block, and a first spring is sleeved on the column. The first spring is used to push the working chamber towards the limiting cylinder.

[0011] In a preferred embodiment of this technical solution, the drive assembly includes a motor mounted on the lower support plate, and the output section of the motor is eccentrically connected to a wheel, the radial surface of which can conform to the column.

[0012] In a preferred embodiment of this technical solution, the drive component includes a wrench rotatably connected to the lower support plate, and pulling the wrench can move the working chamber toward the limiting cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. By using a spring mechanism with pneumatic drive and quantitative stroke, the liquid output depends only on the mechanical displacement and is not affected by the pressure or liquid level, thus achieving high precision and repeatability of quantitative supply.

[0014] 2. The gas-liquid passage is isolated by a one-way valve, and combined with a sealing structure and quick-release connection, it effectively prevents backflow and leakage, improving safety and convenience of use while ensuring accurate metering. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the beauty essence leak-proof storage tank with a metering valve according to the present invention. Figure 2 This is a schematic diagram of the stop block structure of this utility model; Figure 3 This is a schematic diagram of the mounting groove structure of this utility model; Figure 4 This is a schematic diagram of the annular sealing block structure of this utility model; Figure 5 This is a schematic diagram of the connecting block structure of this utility model; Figure 6 This is a schematic diagram of the wrench structure of this utility model.

[0016] Explanation of reference numerals in the attached drawings: 11. Lower support plate; 111. Wrench; 113. Motor; 114. Rotary wheel; 115. Stop block; 116. Limiting cylinder; 12. Top cover; 3. Container bottle; 31. Connecting block; 311. Insert block; 51. Working chamber; 511. Column; 5111. First spring; 512. Mounting groove; 5121. Slot; 5122. First hole; 5123. Second hole; 513. Annular flange; 521. Conductor tube; 5211. Second spring; 522. Air hole; 54. First one-way valve; 61. Pipe; 62. Backing plate; 63. Annular sealing block. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-6 This utility model provides an embodiment of a leak-proof beauty serum storage tank with a metering supply valve, comprising a working chamber 51 disposed between a lower support plate 11 and an upper cover 12. A receiving bottle 3 can be connected to the working chamber 51 for holding the beauty serum. A first one-way valve 54 is provided on the working chamber 51 for supplying air into the working chamber 51. The air in the working chamber 51 can enter the receiving bottle 3, forcing the level of the beauty serum in the receiving bottle 3 to drop. The lower support plate 11... The upper integral molding limit cylinder 116 contains a tube 61, and the tube 61 is provided with a stop plate 62. A second spring 5211 is provided between the stop plate 62 and the working chamber 51. When the second spring 5211 drives the working chamber 51 and the stop plate 62 to separate, it can cause the first one-way valve 54 to draw in air. The working chamber 51 is provided with a guide tube 521 and an air hole 522. The beauty liquid in the container bottle 3 can be sprayed out from the guide tube 521. The lower support plate 11 is provided with a drive component that can squeeze the second spring 5211. Stable output of beauty serum is achieved through the principle of air pressure difference, eliminating the need for an additional pump or complex circuitry. The first one-way valve 54 automatically replenishes air during the reset phase, preventing negative pressure from causing poor liquid output or backflow contamination. Combined with the quantitative compression stroke and sealed conduction tube 521, a fixed dose of beauty serum can be output with each press / drive action, improving the accuracy and user experience. At the same time, the overall enclosed compartment design effectively prevents liquid leakage during transportation or when stationary, ensuring both safety and practicality.

[0019] Please see Figure 3-5A further embodiment of this solution is as follows: The working chamber 51 is provided with an installation groove 512; a leak-proof rubber ring is provided at the mouth of the bottle 3; a connecting block 31 is fitted onto the bottle 3; an insert 311 is integrally formed on the connecting block 31; and a slot 5121 corresponding to the insert 311 is provided on the installation groove 512. When the insert 311 is inserted into the slot 5121, the leak-proof rubber ring can be compressed. This quick-release connection structure is easy to operate, and the seal is achieved upon insertion. It not only facilitates users in replacing beauty serum bottles with different functions, but also achieves a highly reliable seal through the deformation of the rubber ring under pressure, significantly reducing the risk of leakage at the interface.

[0020] Please see Figure 3-5 A further solution based on this embodiment is as follows: the lower support plate 11 is provided with a clearance hole, and the working chamber 51 can drive the container bottle 3 to move radially within the clearance hole. The clearance hole provides the necessary space allowance for the reciprocating motion of the working chamber 51 driving the container bottle 3, avoiding structural interference and ensuring smooth movement during the driving process.

[0021] Please see Figure 2-4 A further solution based on this embodiment is as follows: The mounting slot 512 is provided with a first hole 5122 and a second hole 5123. A third one-way valve is provided on the first hole 5122. A second flexible tube is inserted into one end of the second hole 5123, and the other end is connected to the guide tube 521 through the third flexible tube. A second one-way valve is connected in series on the third flexible tube. Through this branching design, the air inlet channel and the liquid outlet channel are physically isolated, and each is equipped with a one-way valve. This ensures timely air replenishment and prevents the beauty liquid from flowing back into the working chamber 51 or the external environment, providing dual protection for the system's cleanliness and functional reliability.

[0022] Please see Figure 3-5 A further solution based on this embodiment is as follows: an annular sealing block 63 is adhered to the tube 61, an annular flange 513 is provided on the working chamber 51, the annular sealing block 63 can fit against the inner wall of the annular flange 513, the abutment plate 62 is provided with a through hole for the guide tube 521 to pass through, the second spring 5211 is sleeved on the guide tube 521, and a sealing ring that fits against the outer wall of the guide tube 521 is provided on the through hole. The dynamic sealing structure effectively blocks the leakage path between the inside of the working chamber 51 and the external environment, and can maintain good sealing performance even under frequent reciprocating motion, preventing the beauty liquid from overflowing or abnormal air from entering, and ensuring the accuracy of quantitative supply.

[0023] Please see Figure 1-2 A further embodiment of this solution is as follows: a column 511 is integrally formed on the working chamber 51, a stop 115 is provided on the lower support plate 11, and a first spring 5111 is sleeved on the column 511. The first spring 5111 is used to push the working chamber 51 towards the limiting cylinder 116. The first spring 5111 provides a stable restoring force, so that the working chamber 51 automatically returns to its position after the drive ends, preparing for the next air intake and liquid discharge cycle.

[0024] Please see Figure 1-2 A further embodiment of this solution is as follows: the driving component includes a motor 113 mounted on the lower support plate 11, and the output section of the motor 113 is eccentrically connected to a rotating wheel 114, the radial surface of which can conform to the column 511. This automatic driving method can control the start, stop, and speed of the motor 113 through a program to achieve timed, quantitative, continuous, or intermittent supply of beauty essence, which is suitable for high-end equipment such as intelligent beauty instruments and improves the automation and intelligence level of the product.

[0025] For a second embodiment of the driver component, please refer to [link / reference]. Figure 6 A further solution based on this embodiment is as follows: the driving component includes a wrench 111 rotatably connected to the lower support plate 11. Pulling the wrench 111 can move the working chamber 51 towards the limiting cylinder 116. This manual driving structure requires no power supply, is low in cost, simple in structure, and highly reliable. Users can complete a single quantitative liquid dispensing by pressing, making the operation intuitive, energy-saving, and environmentally friendly, eliminating the hassle of charging.

[0026] Working principle: The container bottle 3 is fixed by being inserted into the mounting groove 512 of the working chamber 51 via the connecting block 31, and the leak-proof rubber ring at the bottle mouth is compressed to form a seal. In the initial state, the first spring 5111 pushes the working chamber 51 to the reset position. When the drive assembly is started, if it is in automatic mode (Example 1), the motor 113 drives the eccentric wheel 114 to rotate. The motor 113 is existing technology, and the corresponding circuit connection and control method are known to those skilled in the art. The wheel 114 periodically pushes against the column 511, causing the working chamber 51 to move. If it is in manual mode (Example 2), the user presses the wrench 111 to directly push the working chamber 51 to move. During the movement of the working chamber 51, the second spring 5211 is compressed. Simultaneously, air entering the working chamber 51 from the first one-way valve 54 is forced into the receiving bottle 3 through the air passage (via the third one-way valve and the first hole 5122). The air pressure inside the bottle increases, forcing the beauty solution to be dispensed in a measured amount through the second hose, the second hole 5123, the third hose (including the second one-way valve), and the guide tube 521. Due to the presence of the second one-way valve, the liquid can only flow out in one direction and cannot flow back. After the driving action is completed, the working chamber 51 returns to its original position under the combined action of the first spring 5111 and the second spring 5211. At this time, a negative pressure is formed inside the working chamber 51, and outside air is automatically replenished through the first one-way valve 54, preparing the air pressure conditions for the next liquid discharge cycle. The entire process does not require an additional pump and relies on the synergy of mechanical drive and air pressure difference to achieve precise, leak-proof, and metered supply of beauty solution.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cosmetic solution leakage preventing storage tank with a quantitative supply valve, characterized in that: It includes a working chamber (51) disposed between a lower support plate (11) and an upper cover (12). A container bottle (3) can be connected to the working chamber (51). The container bottle (3) is used to hold beauty essence. A first one-way valve (54) is provided on the working chamber (51). The first one-way valve (54) is used to replenish air into the working chamber (51). The air in the working chamber (51) can enter the container bottle (3). The air entering the container bottle (3) can force the liquid level of the beauty essence in the container bottle (3) to drop. A limit cylinder (116) is integrally formed on the lower support plate (11) to limit the movement. A tube (61) is placed inside the cylinder (116). The tube (61) is provided with a stop plate (62). A second spring (5211) is provided between the stop plate (62) and the working chamber (51). When the second spring (5211) drives the working chamber (51) and the stop plate (62) to separate, it can cause the first one-way valve (54) to draw in air. The working chamber (51) is provided with a guide tube (521) and an air hole (522). The beauty liquid in the container bottle (3) can be sprayed out from the guide tube (521). The lower support plate (11) is provided with a drive assembly that can squeeze the second spring (5211).

2. The leakage preventing cosmetic liquid storage container with a quantitative supply valve according to claim 1, characterized by: The working chamber (51) is provided with an installation groove (512), the bottle mouth of the container (3) is provided with a leak-proof rubber ring, the container (3) is fitted with a connecting block (31), the connecting block (31) is integrally formed with an insert (311), the installation groove (512) is provided with a slot (5121) corresponding to the insert (311), and when the insert (311) is inserted into the slot (5121), the leak-proof rubber ring can be squeezed.

3. The leakage preventing cosmetic liquid storage container with a quantitative supply valve according to claim 2, characterized in that: The lower support plate (11) is provided with a clearance hole, and the working chamber (51) can drive the container (3) to move radially within the clearance hole.

4. The leakage preventing cosmetic liquid storage container with a quantitative supply valve according to claim 3, characterized in that: The mounting slot (512) is provided with a first hole (5122) and a second hole (5123). The first hole (5122) is provided with a third check valve. One end of the second hole (5123) is inserted with a second flexible hose, and the other end is connected to the guide pipe (521) through the third flexible hose. The third flexible hose is connected in series with a second check valve.

5. The leakage preventing cosmetic liquid storage container with a quantitative supply valve according to claim 4, characterized in that: An annular sealing block (63) is attached to the tube (61), and an annular flange (513) is provided on the working chamber (51). The annular sealing block (63) can fit the inner wall of the annular flange (513). The abutment plate (62) is provided with a through hole for the guide tube (521) to pass through. The second spring (5211) is sleeved on the guide tube (521), and a sealing ring that fits the outer wall of the guide tube (521) is provided on the through hole.

6. The leakage preventing cosmetic liquid storage container with a quantitative supply valve according to claim 5, characterized in that: The working chamber (51) has an integrally formed column (511), and the lower support plate (11) is provided with a stop block (115). The column (511) is fitted with a first spring (5111), which is used to push the working chamber (51) towards the limiting cylinder (116).

7. The leakage preventing cosmetic liquid storage container with a quantitative supply valve according to claim 6, characterized in that: The drive assembly includes a motor (113) mounted on a lower support plate (11), the output section of which is eccentrically connected to a wheel (114), the radial surface of which is able to conform to the column (511).

8. The leakage preventing cosmetic liquid storage container with a quantitative supply valve according to claim 6, characterized in that: The driving assembly comprises a wrench (111) rotatably connected to the lower supporting plate (11), and pulling the wrench (111) can move the working bin (51) to the direction of the limiting cylinder (116).

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