Liquid foundation pump head with airtight pressure regulating structure

Abstract

The utility model relates to the technical field of bottle mouth pump heads, and discloses a liquid foundation pump head with an airtight pressure regulating structure, which comprises a bottle body, a supporting cylinder is arranged on the upper surface of the bottle body, a pressure regulating component is arranged on the inner wall of the supporting cylinder, a sealing component is arranged on the outer wall of the bottle body, and the pressure regulating component comprises a limiting block. The limiting block is arranged on the inner wall of the supporting cylinder, a piston cylinder is fixedly connected to the inner wall of the supporting cylinder, three limiting holes are formed in the inner wall of the piston cylinder, and a piston rod is slidably connected to the inner wall of the piston cylinder. The pressing head is pressed and rotated, the piston rod drives the piston head to slide in the piston barrel, liquid foundation is promoted to flow in through the suction pipe, the limiting block is matched with the limiting holes with different heights, the stroke of the piston rod is limited, the liquid taking amount is adjusted, the movement stroke of the piston rod is accurately controlled, and the liquid taking amount is adjusted according to needs. The personalized use requirements of users are met, and meanwhile waste caused by improper liquid taking amount is avoided.

Description

Technical Field

[0001] This utility model relates to the field of bottle neck pump head technology, and in particular to a foundation pump head with an airtight pressure regulating structure. Background Technology

[0002] In the cosmetics industry, foundation, as a commonly used base makeup product, has its packaging pump head design directly impacting the user experience and product quality. As consumers' demands for more sophisticated beauty products increase, foundation pump heads with airtight pressure-regulating structures are gradually becoming a focus of industry attention. These pump heads need to balance functions such as liquid delivery, airtight preservation, and dosage control to ensure the hygiene, stability, and convenience of the foundation during use.

[0003] Currently, traditional foundation pump heads mostly employ a simple piston-spring structure. Pressing the piston changes the internal air pressure of the pump head, allowing the foundation to be delivered through a straw to the outlet. The technical principle of this structure lies in using pressure difference to achieve liquid transfer, with a spring resetting to ensure the pump head can be used repeatedly. Its structural design is relatively fixed; the internal space and piston stroke are not adjustable, and the amount of liquid dispensed each time mainly relies on preset parameters during mold forming to control the amount dispensed.

[0004] However, traditional pump heads suffer from the problem of inflexible liquid dispensing volume. Due to their fixed mechanical structure, the amount of foundation dispensed with each press is relatively uniform, making it difficult to meet the diverse needs of different users (such as professional makeup artists and ordinary consumers). For example, users with lighter makeup often dispense too much liquid in a single press, leading to waste, while users who need a heavier makeup look require multiple presses, resulting in low efficiency. Furthermore, the fixed dispensing volume also limits the adaptability of the foundation to different scenarios, making it difficult to meet diverse makeup needs. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a foundation pump head with an airtight pressure regulating structure, which aims to improve the problem that the liquid dispensing volume of traditional foundation pump heads is fixed and difficult to adjust flexibly.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a foundation pump head with an airtight pressure regulating structure, comprising a bottle body, a support cylinder provided on the upper surface of the bottle body, a pressure regulating component provided on the inner wall of the support cylinder, and a sealing component provided on the outer wall of the bottle body;

[0007] The pressure regulating component includes a limiting block disposed on the inner wall of a support cylinder. A piston cylinder is fixedly connected to the inner wall of the support cylinder. The inner wall of the piston cylinder has three limiting holes. A piston rod is slidably connected to the inner wall of the piston cylinder. A pressing head is fixedly connected to one end of the piston rod. A powder outlet is provided on the outer wall of the pressing head. A piston head is fixedly connected to the other end of the piston rod. An expansion ring is provided on the inner wall of the piston head. A sealing gasket is attached to the lower surface of the expansion ring. A suction tube is fixedly connected to the lower side inside the piston cylinder. A delivery tube is provided on the inner wall of the piston cylinder. A limiting cylinder is fixedly connected to the outer wall of the piston rod. A spring is fixedly connected to the inner wall of the limiting cylinder.

[0008] Furthermore, the sealing assembly includes a sealing ring, the inner wall of which is fitted to the outer wall of the bottle, a connecting ring threaded to the upper side of the inner wall of the bottle, an elastic post fixedly connected to the upper side of the inner wall of the sealing ring, a leak-proof ring fixedly connected to one end of the elastic post, and a sealing gasket II fitted to the lower surface of the leak-proof ring.

[0009] Furthermore, one end of the delivery tube is fixedly connected to the inner wall of the powder outlet, and one end of the suction tube is fixedly connected to the inner wall of the bottle.

[0010] Furthermore, the three limiting holes are arranged in a ring array with different heights on the inner wall of the piston cylinder.

[0011] Furthermore, the outer wall of the limiting block is slidably connected to the inside of the limiting hole, and the limiting block is used to limit the piston rod.

[0012] Furthermore, one end of the spring is fixedly connected to the outer wall of the limiting block, and the spring is used to push the limiting block to move.

[0013] Furthermore, the lower surface of the support cylinder is fixedly connected to the upper surface of the connecting ring, and the outer wall of the piston head is slidably connected to the inner wall of the piston cylinder.

[0014] Furthermore, the outer wall of the expansion ring is slidably connected to the inner wall of the piston cylinder, and the outer wall of the sealing gasket is slidably connected to the inner wall of the piston cylinder.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, pressing and rotating the pressing head causes the piston rod to drive the piston head to slide inside the piston cylinder, causing the foundation liquid to flow in through the straw. The limiting block cooperates with the limiting holes of different heights to limit the stroke of the piston rod, thereby realizing the adjustment of the liquid volume. This solves the problem of fixed liquid volume and difficulty in flexible adjustment of traditional foundation liquid pump heads, achieving precise control of the piston rod movement stroke, realizing the adjustment of liquid volume as needed, meeting the personalized use needs of users, and avoiding waste caused by improper liquid volume.

[0017] 2. In this utility model, the sealing ring and connecting ring initially seal the upper part of the bottle, and the elastic column pushes the anti-leakage ring, which, together with the sealing gasket, further isolates the outside air, prevents the foundation liquid from leaking, and ensures an airtight environment inside the bottle. This effectively prevents the foundation liquid from leaking, isolates the outside air, ensures that the inside of the bottle is in an airtight environment, extends the shelf life of the foundation liquid, and maintains the stability of product quality. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a foundation pump head with an airtight pressure regulating structure proposed in this utility model;

[0019] Figure 2 This is a schematic diagram of the sealing ring part of a foundation pump head with an airtight pressure regulating structure proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the expansion ring structure of a foundation pump head with an airtight pressure regulating structure proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the spring portion of a foundation pump head with an airtight pressure regulating structure proposed in this utility model.

[0022] Figure 5 This is a schematic diagram of the elastic column portion of a foundation pump head with an airtight pressure regulating structure proposed in this utility model.

[0023] Legend:

[0024] 1. Bottle body; 2. Pressing head; 3. Powder outlet; 4. Sealing ring; 5. Support cylinder; 6. Connecting ring; 7. Straw; 8. Delivery pipe; 9. Piston cylinder; 10. Limiting hole; 11. Piston rod; 12. Piston head; 13. Expansion ring; 14. Sealing gasket one; 15. Limiting cylinder; 16. Spring; 17. Limiting block; 18. Sealing gasket two; 19. Leak-proof ring; 20. Elastic column. Detailed Implementation

[0025] 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.

[0026] Reference Figures 1-4 An embodiment of this utility model is provided: a foundation pump head with an airtight pressure regulating structure, including a bottle body 1, a support cylinder 5 provided on the upper surface of the bottle body 1, a pressure regulating component provided on the inner wall of the support cylinder 5, and a sealing component provided on the outer wall of the bottle body 1.

[0027] The pressure regulating component includes a limiting block 17, which cooperates with the limiting holes 10 on the inner wall of the piston cylinder 9. By limiting the stroke of the piston rod 11, the amount of foundation liquid squeezed out each time is adjusted. The limiting block 17 is set on the inner wall of the support cylinder 5. The piston cylinder 9 is fixedly connected to the inner wall of the support cylinder 5. The inner wall of the piston cylinder 9 is provided with three limiting holes 10. The piston rod 11 is slidably connected to the inner wall of the piston cylinder 9, connecting the pressing head 2 and the piston head 12, transmitting the pressing force, and driving the piston head 12 to slide inside the piston cylinder 9. One end of the piston rod 11 is fixedly connected to the pressing head 2, which directly receives external force and drives the piston rod 11. The up-and-down movement allows for the absorption and extrusion of foundation liquid. When pressed, it rotates 90 degrees to trigger the connection between the limit block 17 and the limit hole 10, switching between different pressure adjustment levels. The outer wall of the pressing head 2 is equipped with a powder outlet head 3. The other end of the piston rod 11 is fixedly connected to a piston head 12. An expansion ring 13 is provided on the inner wall of the piston head 12. A sealing gasket 14 is attached to the lower surface of the expansion ring 13. A suction tube 7 is fixedly connected to the lower side inside the piston cylinder 9. A delivery tube 8 is provided on the inner wall of the piston cylinder 9. A limit cylinder 15 is fixedly connected to the outer wall of the piston rod 11. A spring 16 is fixedly connected to the inner wall of the limit cylinder 15.

[0028] Specifically, when using the foundation pump head, pressing the pump head 2 causes the piston rod 11 to drive the piston head 12 to move downwards inside the piston cylinder 9. The expansion ring 13 and the sealing gasket 14 form a double sealing barrier to prevent foundation from overflowing and air from seeping in. As the piston head 12 descends, the air pressure inside the piston cylinder 9 increases, causing the foundation in the bottle 1 to be quickly drawn in through the straw 7. If it is necessary to adjust the amount dispensed, press and rotate the pump head 2 90 degrees. The spring 16 pushes the limiting block 17 to embed into the three limiting holes 10 at different heights, precisely limiting the stroke of the piston rod 11, so that the air pressure change inside the piston cylinder 9 is regulated, thereby squeezing out an appropriate amount of foundation from the powder outlet 3 through the delivery pipe 8.

[0029] Reference Figures 1-5The sealing assembly includes a sealing ring 4, whose inner wall tightly fits the outer wall of the bottle 1, providing a preliminary physical seal to the upper part of the bottle 1, preventing foundation liquid from overflowing and air from entering. The inner wall of the sealing ring 4 is fitted to the outer wall of the bottle 1. A connecting ring 6 is threaded onto the upper side of the inner wall of the bottle 1. An elastic post 20 is fixedly connected to the upper side of the inner wall of the sealing ring 4. A leak-proof ring 19 is fixedly connected to one end of the elastic post 20. A sealing gasket 18 is attached to the lower surface of the leak-proof ring 19. One end of the delivery tube 8 is fixedly connected to the inner wall of the powder outlet 3, and one end of the straw 7 is fixedly connected to the inner wall of the bottle 1. Three limits... The positioning holes 10 are arranged in a ring array at different heights on the inner wall of the piston cylinder 9. The outer wall of the limiting block 17 is slidably connected to the inside of the limiting hole 10. The limiting block 17 is used to limit the piston rod 11. One end of the spring 16 is fixedly connected to the outer wall of the limiting block 17. The spring 16 is used to push the limiting block 17 to move. The lower surface of the support cylinder 5 is fixedly connected to the upper surface of the connecting ring 6. The outer wall of the piston head 12 is slidably connected to the inner wall of the piston cylinder 9. The outer wall of the expansion ring 13 is slidably connected to the inner wall of the piston cylinder 9. The outer wall of the sealing gasket 14 is slidably connected to the inner wall of the piston cylinder 9.

[0030] Specifically, the sealing ring 4 fits tightly against the bottle body 1 and is connected to the connecting ring 6 threaded inside the bottle body 1 to complete the basic seal. At the same time, the elastic column 20 supports the leak-proof ring 19. Under its elastic action, the leak-proof ring 19 is further compacted and sealed by the sealing gasket 2 18.

[0031] Working principle: When a foundation pump head with an airtight pressure regulating structure is needed, pressing the pump head 2 causes the piston rod 11 to drive the piston head 12 to slide downwards inside the piston cylinder 9. The expansion ring 13 and the sealing gasket 14 ensure the sealing during the sliding process. As the piston head 12 moves downwards, the air pressure inside the piston cylinder 9 increases, and the foundation liquid in the bottle 1 enters the piston cylinder 9 through the straw 7. When pressure regulation is required, firstly, when the pump head 2 rotates 90 degrees, the spring 16 pushes the limiting block 17 to connect with the three limiting holes 10 of different heights. At this time, the limiting block 17 limits the piston rod 11 and the piston head 12. At this time, the air pressure inside the piston cylinder 9 decreases, and the foundation liquid is squeezed out from the powder outlet 3 through the delivery pipe 8. The three limiting holes 10 of different heights, together with the limiting block 17, can limit the movement stroke of the piston rod 11, adjust the amount of foundation liquid taken each time, and realize the pressure regulation function.

[0032] In addition, the sealing ring 4 fits against the surface of the bottle body 1, and the connecting ring 6 is threaded into the inside of the bottle body 1 to initially seal the upper part of the bottle body 1. The elastic column 20 is connected to the leak-proof ring 19. Under the action of the elastic column 20, the leak-proof ring 19 further strengthens the seal through the sealing gasket 18 to prevent the foundation liquid from leaking and at the same time prevent outside air from entering the bottle body 1, ensuring that the foundation liquid inside the bottle is in an airtight environment.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A foundation liquid pump head with airtight pressure regulating structure, comprising a bottle body (1), characterized in that: A support cylinder (5) is provided on the upper surface of the bottle body (1), a pressure regulating component is provided on the inner wall of the support cylinder (5), and a sealing component is provided on the outer wall of the bottle body (1). The pressure regulating component includes a limiting block (17), which is disposed on the inner wall of the support cylinder (5). A piston cylinder (9) is fixedly connected to the inner wall of the support cylinder (5). The inner wall of the piston cylinder (9) is provided with three limiting holes (10). A piston rod (11) is slidably connected to the inner wall of the piston cylinder (9). A pressing head (2) is fixedly connected to one end of the piston rod (11). A powder outlet head (3) is provided on the outer wall of the pressing head (2). 11) A piston head (12) is fixedly connected to the other end. An expansion ring (13) is provided on the inner wall of the piston head (12). A sealing gasket (14) is attached to the lower surface of the expansion ring (13). A suction tube (7) is fixedly connected to the lower side inside the piston cylinder (9). A delivery tube (8) is provided on the inner wall of the piston cylinder (9). A limiting cylinder (15) is fixedly connected to the outer wall of the piston rod (11). A spring (16) is fixedly connected to the inner wall of the limiting cylinder (15).

2. The liquid foundation pump head with air-tight pressure regulating structure according to claim 1, characterized in that: The sealing assembly includes a sealing ring (4), the inner wall of which is attached to the outer wall of the bottle body (1), a connecting ring (6) is threaded to the upper side of the inner wall of the bottle body (1), an elastic column (20) is fixedly connected to the upper side of the inner wall of the sealing ring (4), a leak-proof ring (19) is fixedly connected to one end of the elastic column (20), and a sealing gasket (18) is attached to the lower surface of the leak-proof ring (19).

3. The liquid foundation pump head with air-tight pressure regulating structure according to claim 1, characterized in that: One end of the conveying pipe (8) is fixedly connected to the inner wall of the powder outlet (3), and one end of the suction pipe (7) is fixedly connected to the inner wall of the bottle body (1).

4. The liquid foundation pump head with air-tight pressure regulating structure according to claim 1, characterized in that: The three limiting holes (10) are arranged in a ring array with different heights on the inner wall of the piston cylinder (9).

5. The liquid foundation pump head with air-tight pressure regulating structure according to claim 1, characterized in that: The outer wall of the limiting block (17) is slidably connected to the inside of the limiting hole (10), and the limiting block (17) is used to limit the piston rod (11).

6. A foundation pump head with an airtight pressure regulating structure according to claim 1, characterized in that: One end of the spring (16) is fixedly connected to the outer wall of the limiting block (17), and the spring (16) is used to push the limiting block (17) to move.

7. The liquid foundation pump head with air-tight pressure regulating structure according to claim 1, characterized in that: The lower surface of the support cylinder (5) is fixedly connected to the upper surface of the connecting ring (6), and the outer wall of the piston head (12) is slidably connected to the inner wall of the piston cylinder (9).

8. The liquid foundation pump head with air-tight pressure regulating structure according to claim 1, characterized in that: The outer wall of the expansion ring (13) is slidably connected to the inner wall of the piston cylinder (9), and the outer wall of the sealing gasket (14) is slidably connected to the inner wall of the piston cylinder (9).

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