Shampoo packaging bottle

Abstract

The utility model discloses a shampoo packaging bottle, which relates to the technical field of packaging bottles and comprises a packaging bottle base, a ventilation notch is arranged on the packaging bottle base, a threaded ring seat is arranged at the upper end of the packaging bottle base, and an outer cylinder component is mounted at the upper end of the packaging bottle base. The outer cylinder assembly comprises an outer cylinder body installed on a packaging bottle base, a first air hole is formed in the middle of the bottom of the outer cylinder body, a first one-way valve is fixedly installed in the first air hole, a reset spring is arranged at the bottom of the outer cylinder body, and an inner cylinder assembly is slidably installed in the outer cylinder body. A limiting sliding groove is formed in the edge of the upper end of the outer barrel body, a first sealing ring is fixedly installed on the inner wall of the outer barrel body, and a threaded groove is formed in the bottom of the outer barrel body. According to the shampoo packaging bottle, the outer barrel assembly and the inner barrel assembly are used in cooperation, shampoo in the packaging bottle can be completely squeezed out, and waste of the shampoo is reduced.

Description

Technical Field

[0001] This utility model relates to the field of packaging bottle technology, specifically a shampoo packaging bottle. Background Technology

[0002] Shampoo, an indispensable personal care product in our daily lives, primarily functions to cleanse our scalp and hair. It effectively removes oil, dirt, and various residues from the scalp, thus maintaining its cleanliness and health. Furthermore, shampoo provides essential nourishment and protection for our hair, helping to repair damaged hair and restore its original shine and vitality. Shampoo is typically sold in various bottles. These shampoo bottles are mostly made of environmentally friendly materials, such as PET (polyethylene terephthalate) or HDPE (high-density polyethylene), which are not only safe and harmless but also easily recyclable, aligning with modern environmental protection principles.

[0003] In daily shampoo use, users typically dispense shampoo from the bottle using a pump. However, due to its relatively poor fluidity, shampoo often adheres to the inner wall of the bottle. This characteristic makes it difficult to completely pump out the shampoo even with a pump. As a result, a certain amount of shampoo always remains in the bottle, which not only affects the efficiency of shampoo use but also wastes shampoo resources. Utility Model Content

[0004] The purpose of this invention is to provide a shampoo packaging bottle to solve the problem that shampoo cannot be completely squeezed out in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a shampoo packaging bottle, including a packaging bottle base, a vent opening on the packaging bottle base, a threaded ring seat at the upper end of the packaging bottle base, an outer cylinder assembly installed at the upper end of the packaging bottle base, the outer cylinder assembly including an outer cylinder body installed on the packaging bottle base, a first air hole at the middle position of the bottom of the outer cylinder body, a first one-way valve fixedly installed in the first air hole, a return spring at the bottom of the outer cylinder body, and an inner cylinder assembly slidably installed inside the outer cylinder body.

[0006] Preferably, a limiting groove is provided at the upper edge of the outer cylinder body, a first sealing ring is fixedly installed on the inner wall of the outer cylinder body, and a threaded groove is provided at the bottom of the outer cylinder body.

[0007] Preferably, an installation groove is provided on the inner wall of the outer cylinder body, and the first sealing ring is installed in the outer cylinder body through the installation groove.

[0008] Preferably, the threaded ring seat on the packaging bottle base is fixed to the bottom of the outer cylinder body through a threaded groove, the first one-way valve is fixed to the bottom of the outer cylinder body through a first air hole, and the first one-way valve only allows external gas to enter the interior of the outer cylinder body through the first air hole.

[0009] Preferably, the inner cylinder assembly includes an inner cylinder body movably mounted above a reset spring, a piston slidably mounted inside the inner cylinder body, a second sealing ring fixedly mounted at the edge of the piston, a limiting protrusion fixedly mounted at the upper edge of the inner cylinder body, and the limiting protrusion slidably mounted in a limiting groove, a second air hole opened at the bottom of the inner cylinder body, a second one-way valve fixedly mounted in the second air hole, a sealing end cap mounted at the upper end of the inner cylinder body, and a nozzle fixedly mounted on the sealing end cap.

[0010] Preferably, the upper end of the inner cylinder body is provided with threads, and the sealing end cap is installed at the upper end of the inner cylinder body through the threads.

[0011] Preferably, one end of the reset spring is connected to the bottom of the outer cylinder body, and the other end of the reset spring is connected to the bottom of the inner cylinder body. The second one-way valve is installed at the bottom of the inner cylinder body through the second air hole, and the second one-way valve only allows gas in the outer cylinder body to enter the inner cylinder body. The inner cylinder body is restricted to sliding within the outer cylinder body by the limiting protrusion.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. In this application, the user applies pressure to the sealing end cap, causing the inner cylinder body to displace relative to the bottom of the outer cylinder body. During the movement of the inner cylinder body towards the bottom of the outer cylinder body, pressure is applied to the gas at the bottom of the outer cylinder body, causing the gas to flow into the inner cylinder body through the second one-way valve. Subsequently, the flowing gas acts on the piston, causing it to move upwards, thereby pushing the shampoo through the nozzle and completing the shampoo extraction process.

[0014] 2. In this application, after the user releases the sealing end cap, the return spring will drive the inner barrel body to move upward. During the upward movement of the inner barrel body, external gas enters the outer barrel body through the second one-way valve to replenish the gas at the bottom of the outer barrel body, ensuring that the piston can move to the top of the inner barrel body. When the piston reaches the highest position of the inner barrel body, the shampoo will be completely squeezed out, thereby reducing shampoo waste. Attached Figure Description

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

[0016] Figure 2 This is a partial structural schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the outer cylinder assembly of this utility model;

[0018] Figure 4 This is a schematic diagram of the inner cylinder assembly of this utility model.

[0019] Labels in the diagram: 1. Bottle base; 2. Vent notch; 3. Threaded ring seat; 4. Outer cylinder assembly; 401. Outer cylinder body; 402. Limiting groove; 403. First sealing ring; 404. Return spring; 405. Threaded groove; 406. First vent; 407. First one-way valve; 5. Inner cylinder assembly; 501. Sealing end cap; 502. Nozzle; 503. Limiting protrusion; 504. Inner cylinder body; 505. Piston; 506. Second sealing ring; 507. Second vent; 508. Second one-way valve. Detailed Implementation

[0020] 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.

[0021] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for a shampoo packaging bottle, including a packaging bottle base 1, a ventilation notch 2 on the packaging bottle base 1, a threaded ring seat 3 on the upper end of the packaging bottle base 1, an outer cylinder assembly 4 installed on the upper end of the packaging bottle base 1, and an inner cylinder assembly 5 slidably installed inside the outer cylinder body 401. Through the cooperation of the outer cylinder assembly 4 and the inner cylinder assembly 5, the shampoo in the packaging bottle can be completely squeezed out, reducing the waste of shampoo.

[0022] like Figure 2 and Figure 4 As shown, the inner cylinder assembly 5 includes an inner cylinder body 504 movably mounted above the return spring 404. A piston 505 is slidably mounted inside the inner cylinder body 504. A second sealing ring 506 is fixedly mounted on the edge of the piston 505. A limiting protrusion 503 is fixedly mounted on the upper edge of the inner cylinder body 504 and is slidably mounted in a limiting groove 402. A second air hole 507 is opened at the bottom of the inner cylinder body 504. A second one-way valve 508 is fixedly mounted inside the second air hole 507. A sealing end cap 501 is mounted on the upper end of the inner cylinder body 504. A nozzle 502 is fixedly mounted on the sealing end cap 501. The upper end of the inner cylinder body 504 is threaded, and the sealing end cap 501 is threadedly mounted on the upper end of the inner cylinder body 504.

[0023] Specifically, the user can apply pressure to the sealing end cap 501, causing the inner cylinder body 504 to move downwards until it contacts the bottom of the outer cylinder body 401. As the inner cylinder body 504 moves downwards, it applies pressure to the gas located at the bottom of the outer cylinder body 401, forcing this gas to flow into the internal space of the inner cylinder body 504 through the second one-way valve 508. Once the gas enters the inner cylinder body 504, it exerts an upward force on the piston 505, pushing it upwards. As the piston 505 rises, it further compresses the shampoo in the inner cylinder body 504, causing the shampoo to be sprayed out through the nozzle 502, thus facilitating the user's shampoo dispensing.

[0024] like Figure 2 and Figure 3 As shown, the outer cylinder assembly 4 includes an outer cylinder body 401 mounted on the packaging bottle base 1. A first air hole 406 is provided at the middle of the bottom of the outer cylinder body 401. A first one-way valve 407 is fixedly installed in the first air hole 406. A reset spring 404 is provided at the bottom of the outer cylinder body 401. A limit groove 402 is provided at the upper edge of the outer cylinder body 401. A first sealing ring 403 is fixedly installed on the inner wall of the outer cylinder body 401. A threaded groove 405 is provided at the bottom of the outer cylinder body 401. An installation groove is provided on the inner wall of the outer cylinder body 401. The first sealing ring 403 is installed in the outer cylinder body 401 through the installation groove.

[0025] Specifically, after the user finishes using the product, they loosen the sealing end cap 501, at which point the return spring 404 begins to function. The return spring 404 applies force, pushing the inner tub body 504 upwards. As the inner tub body 504 rises, external gas can enter the internal space of the outer tub body 401 through the second one-way valve 508. This process ensures that the bottom of the outer tub body 401 is replenished with gas, thereby maintaining the necessary pressure within the inner tub body 504. With sufficient pressure, the piston 505 can smoothly move to the uppermost position of the inner tub body 504. When the piston 505 reaches this position, it completely squeezes out the shampoo from the inner tub, effectively reducing shampoo waste and ensuring that the product is fully utilized with each use.

[0026] Working principle: Before use, the shampoo is filled into the inner cylinder body 504. When in use, the user presses the sealing end cap 501, causing the inner cylinder body 504 to move towards the bottom of the outer cylinder body 401. When the inner cylinder body 504 moves towards the bottom of the outer cylinder body 401, it will squeeze the gas at the bottom of the outer cylinder body 401, causing it to enter the inner cylinder body 504 through the second one-way valve 508. The gas entering the inner cylinder body 504 will push the piston 505 upward. When the piston 505 moves upward, it will squeeze the shampoo out through the nozzle 502, thus realizing the use of shampoo. When the user releases the sealing end cap 501, the return spring 404 will push the inner barrel body 504 upward. When the inner barrel body 504 moves upward, the external gas will enter the outer barrel body 401 through the second one-way valve 508, thereby replenishing the bottom of the outer barrel body 401 with gas, ensuring that the piston 505 can move to the top of the inner barrel body 504. When the piston 505 moves to the top of the inner barrel body 504, it will completely squeeze out the shampoo, reducing the waste of shampoo.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A shampoo packaging bottle, comprising a bottle base (1), wherein the bottle base (1) has a ventilation notch (2), and a threaded ring seat (3) is provided at the upper end of the bottle base (1), characterized in that: The upper end of the packaging bottle base (1) is equipped with an outer cylinder assembly (4). The outer cylinder assembly (4) includes an outer cylinder body (401) installed on the packaging bottle base (1). A first air hole (406) is opened at the middle position of the bottom of the outer cylinder body (401). A first one-way valve (407) is fixedly installed in the first air hole (406). A reset spring (404) is provided at the bottom of the outer cylinder body (401). An inner cylinder assembly (5) is slidably installed in the outer cylinder body (401).

2. A shampoo packaging bottle according to claim 1, characterized in that: A limiting groove (402) is provided at the upper edge of the outer cylinder body (401), a first sealing ring (403) is fixedly installed on the inner wall of the outer cylinder body (401), and a threaded groove (405) is provided at the bottom of the outer cylinder body (401).

3. A shampoo packaging bottle according to claim 2, characterized in that: An installation groove is provided on the inner wall of the outer cylinder body (401), and the first sealing ring (403) is installed inside the outer cylinder body (401) through the installation groove.

4. A shampoo packaging bottle according to claim 3, characterized in that: The threaded ring seat (3) on the base (1) of the packaging bottle is fixed to the bottom of the outer cylinder body (401) through the threaded groove (405). The first one-way valve (407) is fixed to the bottom of the outer cylinder body (401) through the first air hole (406), and the first one-way valve (407) only allows external gas to enter the interior of the outer cylinder body (401) through the first air hole (406).

5. A shampoo packaging bottle according to claim 4, characterized in that: The inner cylinder assembly (5) includes an inner cylinder body (504) movably mounted above a return spring (404), a piston (505) slidably mounted inside the inner cylinder body (504), a second sealing ring (506) fixedly mounted at the edge of the piston (505), a limiting protrusion (503) fixedly mounted at the upper edge of the inner cylinder body (504), and the limiting protrusion (503) slidably mounted in a limiting groove (402), a second air hole (507) is opened at the bottom of the inner cylinder body (504), a second one-way valve (508) is fixedly mounted inside the second air hole (507), a sealing end cap (501) is mounted at the upper end of the inner cylinder body (504), and a nozzle (502) is fixedly mounted on the sealing end cap (501).

6. A shampoo packaging bottle according to claim 5, characterized in that: The inner cylinder body (504) is provided with threads at the upper end, and the sealing end cap (501) is installed at the upper end of the inner cylinder body (504) by means of threads.

7. A shampoo packaging bottle according to claim 6, characterized in that: One end of the reset spring (404) is connected to the bottom of the outer cylinder body (401), and the other end of the reset spring (404) is connected to the bottom of the inner cylinder body (504). The second one-way valve (508) is installed at the bottom of the inner cylinder body (504) through the second air hole (507), and the second one-way valve (508) only allows gas in the outer cylinder body (401) to enter the inner cylinder body (504). The inner cylinder body (504) is restricted to sliding within the outer cylinder body (401) by the limiting protrusion (503).

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