Inner bag type liquid storage container

Abstract

The utility model discloses an inner bag type liquid storage container and belongs to the technical field of liquid storage containers. An inner bag is arranged in an inner cavity of a bottle body, a bag neck of the inner bag is attached to the inner side wall of a bottle neck of the bottle body, a bag opening of the inner bag corresponds to a bottle opening of the bottle neck, cosmetics are injected into the inner bag through the bag opening, and then a one-way valve is inserted into the bottle neck of the bottle body. The annular protrusion on the outer side wall of the one-way valve is inserted into the annular groove in the inner side wall of the bottle neck, the annular protrusion slides along the inner side wall of the bottle neck in the insertion process, and due to the fact that the annular protrusion is elastic and is in a big-end-up circular truncated cone shape, the one-way valve can be smoothly inserted into the bottle neck. And finally, the annular protrusion pushes the bag neck to be embedded into the annular groove, and the sealing performance between the one-way valve and the bag neck can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid storage containers, in particular to an inner capsule type liquid storage container. Background Art

[0002] Liquid storage containers are used to store cosmetics. As the quality requirements for cosmetics increase, liquid storage containers need to improve safety. Currently, some liquid storage containers are equipped with an inner capsule inside the bottle body to store cosmetics. After the cosmetics are squeezed out of the inner capsule, external air enters the bottle body to maintain the air pressure inside the bottle body in balance with the outside world, while external air does not enter the inner capsule to ensure that the cosmetics in the inner capsule are not contaminated by the outside air. Existing inner capsule liquid storage containers generally install a valve body at the bottle mouth and seal the sac mouth of the inner capsule. However, the sealing performance of the valve body and the inner capsule and the ease of assembly are mutually restricted. Higher sealing performance will make the assembly of the valve body and the inner capsule more complicated, affecting the cosmetic filling cost of the inner capsule liquid storage container. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an inner bladder-type liquid storage container that facilitates the smooth insertion of a one-way valve into the bottle neck, improving the ease of assembly between the one-way valve, bottle neck, and bladder neck. Finally, an annular protrusion pushes the bladder neck into the annular groove, ensuring a tight seal between the one-way valve and the bladder neck.

[0004] The inner capsule type liquid storage container according to the embodiment of the present utility model comprises:

[0005] The bottle body is provided with an inner cavity, the top of the bottle body is provided with a bottleneck, the top of the bottleneck is provided with a bottle mouth, the inner side wall of the bottleneck is provided with an annular groove, the annular groove surrounds the circumference of the bottleneck, and the bottle body is provided with a vent hole;

[0006] An inner capsule is disposed in the inner cavity, a capsule neck is disposed at the top of the inner capsule, a capsule opening is disposed at the top of the capsule neck, and the capsule neck fits the bottleneck;

[0007] A one-way valve is inserted into the bottleneck. The outer wall of the one-way valve is provided with an annular protrusion. The annular protrusion is elastic. The outer diameter of the annular protrusion gradually decreases from top to bottom. The annular protrusion pushes the bag neck to embed into the annular groove.

[0008] The inner capsule type liquid storage container according to the embodiment of the present invention has at least the following beneficial effects: the inner capsule is set in the inner cavity of the bottle body, so that the capsule neck of the inner capsule fits the inner wall of the bottleneck of the bottle body, and the capsule opening of the inner capsule corresponds to the bottle opening of the bottleneck, the cosmetics are injected into the inner capsule through the capsule opening, and then the one-way valve is inserted into the bottleneck of the bottle body, so that the annular protrusion on the outer wall of the one-way valve is inserted into the annular groove on the inner wall of the bottleneck, and the annular protrusion slides along the inner wall of the bottleneck during the insertion process. Since the annular protrusion is elastic and the annular protrusion is in the shape of a truncated cone with a larger upper part and a smaller lower part, it helps to smoothly insert the one-way valve into the bottleneck, thereby improving the assembly convenience between the one-way valve, the bottleneck and the capsule neck. Finally, the annular protrusion pushes the capsule neck to embed into the annular groove, which can ensure the sealing between the one-way valve and the capsule neck.

[0009] According to some embodiments of the present invention, there are multiple annular grooves, and the multiple annular grooves are spaced apart in the up and down directions. There are multiple annular protrusions, and the multiple annular protrusions are embedded in the multiple annular grooves in a one-to-one correspondence.

[0010] According to some embodiments of the present invention, the outer diameters of the plurality of annular protrusions decrease gradually from top to bottom.

[0011] According to some embodiments of the present invention, the shapes of the plurality of annular grooves match the shapes of the plurality of annular protrusions in a one-to-one correspondence.

[0012] According to some embodiments of the present invention, the outer side wall of the one-way valve is further provided with an annular step, the annular step being located above the bottleneck, and the inner capsule type liquid storage container further comprises:

[0013] An elastic ring is sleeved on the outside of the one-way valve, and the elastic ring is elastically abutted between the bottom wall of the annular step and the top wall of the bottleneck.

[0014] According to some embodiments of the present invention, a first annular protrusion is provided at the bottom of the annular step, and a second annular protrusion is provided on the top wall of the bottleneck, and the first annular protrusion and the second annular protrusion are staggered.

[0015] According to some embodiments of the present invention, the top of the inner capsule is bonded to the top inner wall of the inner cavity.

[0016] According to some embodiments of the present invention, an annular boss is provided on the top wall of the inner cavity, and the annular boss surrounds the circumference of the bottle mouth. The top of the inner capsule is bonded to the annular boss.

[0017] According to some embodiments of the present invention, the inner capsule type liquid storage container further includes:

[0018] The connecting cylinder is rotatably connected to the one-way valve, the connecting cylinder is sleeved on the outside of the bottleneck, and the connecting cylinder is threadedly connected to the bottleneck.

[0019] According to some embodiments of the present invention, an arc-shaped groove is provided at the bottom of the bottle body, and the vent hole is provided in the arc-shaped groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic cross-sectional view of an inner capsule type liquid storage container according to one embodiment of the present invention;

[0021] Figure 2 This is a schematic cross-sectional view of an exploded inner capsule type liquid storage container according to one embodiment of the present invention;

[0022] Figure 3 yes Figure 1 A is an enlarged schematic diagram;

[0023] Figure 4 This is an exploded schematic diagram of an inner capsule type liquid storage container according to one embodiment of the present invention;

[0024] Figure 5 This is a schematic exploded view of an inner capsule type liquid storage container from another angle according to an embodiment of the present invention.

[0025] Figure numerals: bottle body 100, inner cavity 110, annular boss 111, bottleneck 120, annular groove 121, second annular protrusion 122, bottle mouth 130, vent 140, arc-shaped groove 150, inner capsule 200, capsule neck 210, capsule mouth 220, one-way valve 300, annular protrusion 310, annular step 320, first annular protrusion 321, elastic ring 400, connecting tube 500. DETAILED DESCRIPTION

[0026] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0027] In the description of the present invention, it should be understood that the terms front, rear, up, down, axial, circumferential, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0028] In the description of this utility model, "above," "below," and "within" are understood to be exclusive of the number indicated, while "above," "below," and "within" are understood to be inclusive of the number indicated. The use of "first" and "second" is solely for the purpose of distinguishing technical features and is not to be construed as indicating or implying relative importance, or implicitly specifying the number or order of the technical features indicated.

[0029] In the description of the present invention, it should be noted that terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described below are only some embodiments of the present invention, not all embodiments.

[0031] Reference Figures 1 to 5 As shown, the inner capsule type liquid storage container of the present invention is made into the following embodiments.

[0032] The inner capsule type liquid storage container includes a bottle body 100 , an inner capsule 200 and a one-way valve 300 .

[0033] An inner cavity 110 is provided inside the bottle body 100, and a bottleneck 120 is provided on the top of the bottle body 100. The bottleneck 120 is connected to the inner cavity 110. A bottle mouth 130 connected to the outside is provided on the top of the bottleneck 120. An annular groove 121 is provided on the inner side wall of the bottleneck 120. The annular groove 121 surrounds the circumference of the bottleneck 120. The side wall of the bottle body 100 is provided with a vent 140 connected to the outside.

[0034] The inner capsule 200 is arranged in the inner cavity 110 of the bottle body 100 , a capsule neck 210 is arranged on the top of the inner capsule 200 , a capsule opening 220 communicating with the outside is arranged on the top of the capsule neck 210 , and the capsule neck 210 is fitted on the inner side wall of the bottleneck 120 .

[0035] The one-way valve 300 is inserted into the bottleneck 120. An annular protrusion 310 is provided on the outer wall of the one-way valve 300. The annular protrusion 310 can be elastically deformed. The outer diameter of the annular protrusion 310 gradually increases from bottom to top. The annular protrusion 310 cooperates with the annular groove 121. The annular protrusion 310 pushes the neck 210 of the inner capsule 200 into the annular groove 121.

[0036] Place the inner capsule 200 in the inner cavity 110 of the bottle body 100, so that the capsule neck 210 of the inner capsule 200 fits the inner wall of the bottleneck 120 of the bottle body 100, and the capsule opening 220 of the inner capsule 200 corresponds to the bottle opening 130 of the bottleneck 120. Then, inject the cosmetics into the inner capsule 200 through the capsule opening 220. Then, insert the one-way valve 300 into the bottleneck 120 of the bottle body 100, so that the annular protrusion 310 on the outer wall of the one-way valve 300 is inserted into the annular groove 121 on the inner wall of the bottleneck 120. During the insertion process, the annular protrusion 310 slides along the inner wall of the bottleneck 120. Since the annular protrusion 310 is elastic and has a frustum shape with a larger top and a smaller bottom, it helps the one-way valve 300 to be smoothly inserted into the bottleneck 120, thereby improving the assembly convenience between the one-way valve 300, the bottleneck 120 and the bag neck 210. Finally, the annular protrusion 310 pushes the bag neck 210 to be embedded in the annular groove 121, which can ensure the sealing between the one-way valve 300 and the bag neck 210.

[0037] In some embodiments, a plurality of annular grooves 121 spaced apart from top to bottom are provided on the inner wall of the bottleneck 120, and a plurality of annular protrusions 310 spaced apart from top to bottom are provided on the outer wall of the one-way valve 300, and the plurality of annular protrusions 310 are inserted into the plurality of annular grooves 121 one by one.

[0038] By using the multiple annular protrusions 310 to cooperate with the multiple annular grooves 121 , multiple tortuous sealing interfaces are formed between the bag neck 210 and the bottleneck 120 , which helps to improve the sealing performance between the bag neck 210 and the one-way valve 300 .

[0039] In some embodiments, among every two upper and lower adjacent annular protrusions 310 , the outer diameter of the upper annular protrusion 310 is larger than the outer diameter of the lower annular protrusion 310 .

[0040] The outer diameter of the lower annular protrusion 310 is smaller than the outer diameter of the upper annular protrusion 310 , so that the outer diameter of the one-way valve 300 gradually decreases from top to bottom, so that the one-way valve 300 can be inserted into the bottleneck 120 more smoothly.

[0041] In some embodiments, the shape of the annular groove 121 matches the shape of the annular protrusion 310 , and the aperture of the annular groove 121 gradually decreases from top to bottom.

[0042] The shape of the annular groove 121 matches that of the annular protrusion 310 , which helps to reduce the gap between the annular protrusion 310 and the annular groove 121 , so that the annular protrusion 310 and the annular groove 121 can tightly seal the bag neck 210 .

[0043] In some embodiments, an annular step 320 is provided on the outer wall of the one-way valve 300, and the annular step 320 is located above the annular protrusion 310. The inner capsule liquid storage container is also provided with an elastic ring 400, which is mounted on the outside of the one-way valve 300 and is placed at the bottom of the annular step 320. When the one-way valve 300 is inserted into the bottleneck 120, the bottom of the annular step 320 and the top of the bottleneck 120 squeeze the elastic ring 400.

[0044] The elastic force of the elastic ring 400 has a tendency to push the annular step 320 to move upward, that is, after the one-way valve 300 is inserted into the bottleneck 120, the elastic force of the elastic ring 400 can push the one-way valve 300 to move upward, so that the top wall of the annular protrusion 310 on the outer wall of the one-way valve 300 fits against the top wall of the annular groove 121 of the bottleneck 120, and the top wall of the annular protrusion 310 and the top wall of the annular groove 121 are used to seal the neck 210 of the inner bag 200, thereby improving the sealing effect and avoiding the gap formed between the annular protrusion 310 and the annular groove 121 due to the excessive insertion depth of the one-way valve 300, which affects the sealing of the neck 210.

[0045] In some embodiments, a first annular protrusion 321 protruding downward is provided at the bottom of the annular step 320 , and a second annular protrusion 122 protruding upward is provided at the top of the bottleneck 120 . The first annular protrusion 321 and the second annular protrusion 122 are staggered.

[0046] The first annular protrusion 321 and the second annular protrusion 122 squeeze the elastic ring 400 at two different positions, which helps to form a tortuous sealing interface between the first annular protrusion 321, the elastic ring 400, and the second annular protrusion 122, thereby improving the sealing between the annular step 320 of the one-way valve 300 and the top wall of the bottleneck 120.

[0047] In some embodiments, the top of the inner capsule 200 is bonded to the top inner wall of the inner cavity 110 .

[0048] The top of the inner capsule 200 is bonded to the top inner wall of the inner cavity 110 of the bottle body 100, which helps to fix the inner capsule 200. When the cosmetic liquid is injected into the inner capsule 200, the capsule neck 210 is prevented from sliding off the bottleneck 120, so that the capsule neck 210 of the inner capsule 200 can be positioned at the bottleneck 120, ensuring that the one-way valve 300 can seal the capsule neck 210 when inserted into the bottleneck 120.

[0049] In some embodiments, an annular boss 111 is provided on the top wall of the inner cavity 110 . The annular boss 111 surrounds the circumference of the bottle mouth 130 , and the top of the inner capsule 200 is bonded to the annular boss 111 .

[0050] The annular boss 111 is used to bond the top of the inner capsule 200 to reduce the bonding area of ​​the inner capsule 200. After the cosmetic liquid in the inner capsule 200 is squeezed out from the one-way valve 300, the inner capsule 200 is squeezed and contracted by the external air pressure. The smaller the bonding area between the inner capsule 200 and the top wall of the inner cavity 110, the greater the contraction range of the top of the inner capsule 200, which is more conducive to squeezing out more cosmetic liquid and reducing the amount of cosmetic liquid residue.

[0051] In some embodiments, the inner capsule liquid storage container is further provided with a connecting tube 500 , which is rotatably connected to the one-way valve 300 and is connected to the external thread of the bottleneck 120 .

[0052] The connecting tube 500 is connected to the bottleneck 120 by using a thread. When the connecting tube 500 is gradually tightened, the connecting tube 500 continuously drives the one-way valve 300 downward to be inserted into the bottleneck 120, thereby making it easier to insert the one-way valve 300 into the bottleneck 120.

[0053] In some embodiments, an arc-shaped groove 150 is provided at the bottom of the bottle body 100 , and a vent hole 140 is provided on the top wall of the arc-shaped groove 150 .

[0054] The arc groove 150 forms a gap between the bottom end of the vent hole 140 and the bottom surface of the bottle body 100 , so that when the bottle body 100 is placed on a wet table, water on the table can be prevented from being directly sucked into the vent hole 140 .

[0055] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An inner capsule type liquid storage container, characterized in that: include: The bottle body is provided with an inner cavity, the top of the bottle body is provided with a bottleneck, the top of the bottleneck is provided with a bottle mouth, the inner side wall of the bottleneck is provided with an annular groove, the annular groove surrounds the circumference of the bottleneck, and the bottle body is provided with a vent hole; An inner capsule is disposed in the inner cavity, a capsule neck is disposed at the top of the inner capsule, a capsule opening is disposed at the top of the capsule neck, and the capsule neck fits the bottleneck; A one-way valve is inserted into the bottleneck. The outer wall of the one-way valve is provided with an annular protrusion. The annular protrusion is elastic. The outer diameter of the annular protrusion gradually decreases from top to bottom. The annular protrusion pushes the bag neck to embed into the annular groove.

2. The inner capsule type liquid storage container according to claim 1, characterized in that: There are a plurality of annular grooves, and the plurality of annular grooves are spaced apart in the up-down direction. There are a plurality of annular protrusions, and the plurality of annular protrusions are embedded in the plurality of annular grooves in a one-to-one correspondence.

3. The inner capsule type liquid storage container according to claim 2, characterized in that: The outer diameters of the plurality of annular protrusions decrease gradually from top to bottom.

4. The inner capsule type liquid storage container according to claim 3, characterized in that: The shapes of the plurality of annular grooves match the shapes of the plurality of annular protrusions in a one-to-one correspondence.

5. The inner capsule type liquid storage container according to claim 1, characterized in that: The outer side wall of the one-way valve is further provided with an annular step, and the annular step is located above the bottleneck. The inner capsule type liquid storage container further comprises: An elastic ring is sleeved on the outside of the one-way valve, and the elastic ring is elastically abutted between the bottom wall of the annular step and the top wall of the bottleneck.

6. The inner capsule type liquid storage container according to claim 5, characterized in that: A first annular protrusion is provided at the bottom of the annular step, and a second annular protrusion is provided on the top wall of the bottleneck. The first annular protrusion and the second annular protrusion are staggered.

7. The inner capsule type liquid storage container according to claim 1, characterized in that: The top of the inner capsule is bonded to the top inner wall of the inner cavity.

8. The inner capsule type liquid storage container according to claim 7, characterized in that: An annular boss is provided on the top wall of the inner cavity, and the annular boss surrounds the bottle mouth in a circle along the circumference. The top of the inner capsule is bonded to the annular boss.

9. The inner capsule type liquid storage container according to claim 1, characterized in that: The inner capsule type liquid storage container also includes: The connecting cylinder is rotatably connected to the one-way valve, the connecting cylinder is sleeved on the outside of the bottleneck, and the connecting cylinder is threadedly connected to the bottleneck.

10. The inner capsule type liquid storage container according to claim 1, characterized in that: The bottom of the bottle body is provided with an arc-shaped groove, and the vent hole is provided in the arc-shaped groove.

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