CN115736471B - a liquid refill bottle - Google Patents

Abstract

The application discloses a liquid replenishing bottle, which comprises an integrally formed shell, wherein the shell comprises a bottom, the circumferential edge of a first through hole at the bottom extends upwards and downwards to form an upper pipe wall and a lower pipe wall, the lower pipe wall is sleeved with a pipe fitting, the upper end of the pipe fitting is connected with the bottom and forms a space with the lower pipe wall, and the bottom of the inner wall of the lower end is provided with a retainer ring; the bottom filling rod is inserted into the upper pipe wall and the lower pipe wall and is axially matched with the upper pipe wall and the lower pipe wall in a sliding manner, the lower end of the bottom filling rod is provided with an outer step, the bottom filling rod is provided with a first runner and a second runner, the lower end of the first runner is communicated with the outside from the bottom of the bottom filling rod, and the upper end of the second runner is used for being inserted into an exhaust pipe; and one end of the elastic piece is connected with the upper end of the interval, and the other end of the elastic piece is connected with the outer step to support the lower end of the abutting rod to the check ring. The integrated shell design is adopted, the assembly can be completed only by assembling the spring and the bottom charging rod, the parts are few, the assembly is convenient, the working procedures are few, and the efficiency is high.

Description

a liquid refill bottle

Technical field

The invention belongs to the technical field of cosmetics, and specifically relates to a liquid refill bottle.

Background technique

Perfume is a kind of beauty cosmetics. Perfume can emit a rich, long-lasting and pleasant aroma, thereby increasing the user's beauty and attractiveness. In daily life, when people travel or go on a business trip, they need to pack perfume into small perfume bottles for easy portability.

In the patent document CN114084861A, our company discloses a liquid refill bottle in which the piston rod, piston, valve body, PE pipe, elastic plug, and bottom filling rod can be assembled separately, and can be individually airtight after assembly. Performance testing makes it modular, which facilitates the subsequent assembly of liquid refill bottles, perfume bottles and other bottles, and the installation process is convenient and fast. But there are problems with the structure: there are many parts and the assembly process is complicated.

Contents of the invention

The invention aims at the deficiencies in the prior art. Through the integrated shell design, the assembly can be completed only by assembling the spring and the bottom charging rod. It has fewer parts, convenient assembly, fewer processes and high efficiency.

The technical solution disclosed by the present invention is as follows: a liquid replenishing bottle, including:

An integrally formed housing. The housing includes a bottom. The bottom has a first through hole connecting the upper and lower sides of the bottom and a second through hole passing through the bottom to connect the first through hole with the outside of the housing. The first through hole is The circumferential edge of the hole extends upward and downward to form an upper pipe wall and a lower pipe wall. The lower pipe wall is covered with a pipe fitting. The upper end of the pipe fitting is connected to the bottom and forms a gap with the lower pipe wall. There is a retaining ring at the bottom of the inner wall of the lower end;

The bottom filling rod is inserted into the upper tube wall and the lower tube wall and axially slides with the upper tube wall and the lower tube wall. The inner wall of the upper tube wall has a first seal and a second seal. The inner wall of the lower tube wall has a third seal and a fourth seal. The lower end of the bottom filling rod has an outer step. The bottom filling rod has a first flow channel and a second flow channel. The lower end of the first flow channel connects with the bottom of the bottom filling rod from the bottom. Externally connected, the upper end of the second flow channel is used to insert the exhaust pipe;

The elastic member has one end connected to the upper end of the spacer and the other end connected to the outer step to push the lower end of the bottom filling rod against the retaining ring;

in,

When the elastic member is in a compressed state, the upper end of the first flow channel is located above the first seal and is connected to the cavity in the housing, and the lower end of the second flow channel is located between the second seal and the third seal and is connected to the second through hole. connected,

In the reset state, the upper end of the first flow channel is located between the first seal and the second seal, and the second flow channel is located between the third seal and the fourth seal.

Based on the above solution, preferably, there is an interference fit between the exhaust pipe and the second flow channel.

On the basis of the above solution, as a preferred option, the structures of the first seal, the second seal, the third seal and the fourth seal are the same, and all form an angle of less than 90 degrees with the corresponding upper and lower pipe walls. angle.

Based on the above solution, preferably, the outer step includes an upper step and a lower step located outside the upper step. The lower tube wall is located directly above the upper step, and the elastic member is connected to the lower step.

On the basis of the above solution, preferably, at least one of the upper step and the lower step is replaced by an annular groove.

On the basis of the above solution, it is preferred that when the bottom filling rod reaches the retaining ring, the lower end surface of the bottom filling rod is flush with the lower end surface of the pipe fitting.

On the basis of the above solution, as a preferred option, a silicone pad with a central through hole is also included. The silicone pad is tightly fitted in the notch at the lower end of the bottom filling rod, and the central through hole is connected to the first flow channel.

Compared with the prior art, the present invention has the following beneficial effects:

Through the integrated shell design, assembly can be completed only by assembling the spring and the bottom charging rod. There are few parts, easy assembly, and high efficiency.

Description of the drawings

Figure 1 is a schematic structural diagram of the reset state of the present invention;

Figure 2 is a schematic structural diagram of the present invention in a liquid-filled state;

Figure 3 is a perspective view of the present invention;

Figure 4 is a schematic structural diagram of the shell;

Figure 5 is a schematic structural diagram of the bottom charging rod;

Figure 6 is a perspective view of the bottom charging rod.

Detailed ways

In order to explain the embodiments of the present invention or technical solutions in the prior art more clearly, the specific implementation modes of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without exerting creative efforts, other drawings can also be obtained based on these drawings, and obtain Other embodiments.

Figure 1 shows the reset state, and Figure 2 shows the liquid filling state.

As shown in Figure 1-6, a liquid refill bottle includes:

The one-piece housing is made of plastic, such as PP, etc. The housing 100 includes a bottom 1 with a first through hole 2 connecting the upper and lower sides of the bottom and passing through the bottom to communicate the first through hole with the outside of the housing. The second through hole 3 extends upward and downward from the circumferential edge of the first through hole to form an upper tube wall 4 and a lower tube wall 5. The lower tube wall is covered with a pipe fitting 6. The upper end of the pipe fitting is connected to the bottom and is connected to the lower pipe wall. A gap 7 is formed between the pipe walls, and a retaining ring 8 is provided at the bottom of the inner wall of the lower end;

The bottom filling rod 9 is inserted into the upper tube wall and the lower tube wall and axially slides with the upper tube wall and the lower tube wall. The inner wall of the upper tube wall has a first seal 10 and a second seal. Seal 11. The inner wall of the lower tube wall has a third seal 12 and a fourth seal 13. The lower end of the bottom filling rod has an outer step 14. The bottom filling rod has a first flow channel 15 and a second flow channel 16. The first flow channel The lower end of the bottom filling rod is connected to the outside from the bottom of the bottom filling rod. The upper end of the second flow channel is used to insert the exhaust pipe 17. The exhaust pipe and the second flow channel can be interference fit or other ways to achieve fixation. Another example is adhesive. catch;

The elastic member 18 is a spring, one end of which is connected to the upper end of the spacer, and the other end is connected to the outer step to push the lower end of the bottom filling rod against the retaining ring;

in,

When the elastic member is in a compressed state, the upper end of the first flow channel is located above the first seal and is connected to the cavity in the housing, and the lower end of the second flow channel is located between the second seal and the third seal and is connected to the second through hole. connected,

In the reset state, the upper end of the first flow channel is located between the first seal and the second seal, and the second flow channel is located between the third seal and the fourth seal.

The structures of the first seal, the second seal, the third seal and the fourth seal are the same. They all form an angle of less than 90 degrees with the corresponding upper and lower pipe walls, and are in an inverted V shape. The angle is preferably 30-45 degrees. The existence of this angle allows there to be a retreat space between the end of the first seal, the second seal, the third seal and the fourth seal when they are under pressure and the corresponding pipe wall, reducing the Sliding resistance improves sealing effect.

The outer step includes an upper step 19 and a lower step 20 located outside the upper step. The lower tube wall is located directly above the upper step, and the elastic member is connected to the lower step.

At least one of the upper step and the lower step is replaced by an annular groove.

When the bottom filling rod reaches the retaining ring, the lower end surface of the bottom filling rod is flush with the lower end surface of the pipe fitting.

It also includes a silicone pad 21 with a central through hole. The silicone pad is tightly installed in the notch 22 at the lower end of the bottom filling rod. The central through hole is connected to the first flow channel. The design of the silicone pad prevents the main bottle mouth from being uneven. To avoid liquid leakage during the bottom filling process, the diameter of the central through hole should be connected to the first flow channel, and should be able to keep the silicone pad from blocking the first flow channel during the extrusion process.

When installing, turn it upside down, place the spring in the interval, and press the bottom filling rod directly from the lower end of the pipe fitting into the space between the pipe fitting, the upper pipe wall, and the lower pipe wall.

In the solution of this application, through the integrated housing design, the assembly only needs to be assembled by the spring and the bottom charging rod. The parts are few, the assembly is convenient and the efficiency is high.

It should be noted that the above embodiments can be freely combined as needed. The above are only preferred embodiments of the present invention. It should be noted that those skilled in the art can make several improvements and modifications without departing from the principles of the present invention. These improvements and modifications can also be made. should be regarded as the protection scope of the present invention.

Claims (8)

1. A liquid refill bottle, characterized in that it includes: An integrally formed housing. The housing includes a bottom. The bottom has a first through hole connecting the upper and lower sides of the bottom and a second through hole passing through the bottom to connect the first through hole with the outside of the housing. The first through hole is The circumferential edge of the hole extends upward and downward to form an upper pipe wall and a lower pipe wall. The lower pipe wall is covered with a pipe fitting. The upper end of the pipe fitting is connected to the bottom and forms a gap with the lower pipe wall. There is a retaining ring at the bottom of the inner wall of the lower end; The bottom filling rod is inserted into the upper tube wall and the lower tube wall and axially slides with the upper tube wall and the lower tube wall. The inner wall of the upper tube wall has a first seal and a second seal. The inner wall of the lower tube wall has a third seal and a fourth seal. The lower end of the bottom filling rod has an outer step. The bottom filling rod has a first flow channel and a second flow channel. The lower end of the first flow channel connects with the bottom of the bottom filling rod from the bottom. Externally connected, the upper end of the second flow channel is used to insert the exhaust pipe; The elastic member has one end connected to the upper end of the spacer and the other end connected to the outer step to push the lower end of the bottom filling rod against the retaining ring; in, When the elastic member is in a compressed state, the upper end of the first flow channel is located above the first seal and is connected to the cavity in the housing, and the lower end of the second flow channel is located between the second seal and the third seal and is connected to the second through hole. connected, In the reset state, the upper end of the first flow channel is located between the first seal and the second seal, and the second flow channel is located between the third seal and the fourth seal. 2. The liquid replenishing bottle according to claim 1, characterized in that there is an interference fit between the exhaust pipe and the second flow channel. 3. The liquid replenishing bottle according to claim 1, wherein the first seal, the second seal, the third seal and the fourth seal have the same structure, and are all in line with the corresponding upper tube wall and lower tube. The angle formed between the walls is less than 90 degrees. 4. The liquid refill bottle according to claim 1, wherein the outer step includes an upper step and a lower step located outside the upper step, the lower tube wall is located directly above the upper step, and the elastic member is connected to the lower step. 5. The liquid refill bottle according to claim 4, wherein at least one of the upper step and the lower step is replaced by an annular groove. 6. The liquid refill bottle of claim 1, wherein when the bottom filling rod reaches the retaining ring, the lower end surface of the bottom filling rod is flush with the lower end surface of the pipe. 7. The liquid refill bottle according to claim 1, further comprising a silicone pad with a central through hole, the silicone pad is tightly fitted in the notch at the lower end of the bottom filling rod, and the central through hole is in contact with the first flow channel. Connected. 8. The liquid refill bottle of claim 1, wherein the elastic member is a spring.