A leak-proof cosmetic dispensing bottle

Abstract

This utility model discloses a leak-proof cosmetic dispensing bottle, including a cap with a sealing cavity inside. The sealing cavity has a through hole at the center of its top surface and internal threads on its bottom sidewall. A sealing post with a connecting hole on its top surface has a connecting bolt in the connecting hole. A sealing ring is fitted onto the sealing post, and a guide slope is provided on the inner side of the bottom surface of the sealing ring. The bottle body has an annular connecting boss with external threads on its outer sidewall, which connect to the internal threads. In the assembled state, the sealing post extends into the annular connecting boss, preventing deformation and ensuring a tight connection between the internal and external threads. A sealing ring is also fitted onto the sealing post. The top of the annular connecting boss deforms inward along the guide slope of the sealing ring, making the fit between the annular connecting boss and the sealing post even tighter. Even when using a flexible bottle body, this product still maintains a good sealing effect.

Description

Technical Field

[0001] This utility model relates to the field of dispensing bottles, and in particular to a leak-proof cosmetic dispensing bottle. Background Technology

[0002] During business trips and leisure travel, the quality of hotel toiletries varies, but household toiletries are too bulky. To ensure a good travel experience, people often carry small quantities of household toiletries in travel-sized containers to reduce their burden while traveling.

[0003] Dispensing bottles mainly consist of two parts: the bottle body and the cap. To facilitate the dispensing of liquid, the bottle body is mostly made of soft materials such as silicone, while the cap is made of hard materials such as plastic. The cap and the bottle body are usually connected by threads. However, because the bottle body is relatively soft, leakage often occurs during use, which greatly affects the user experience. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a leak-proof cosmetic dispensing bottle.

[0005] The technical solution adopted by this utility model is: a leak-proof cosmetic dispensing bottle, comprising...

[0006] A bottle cap, wherein a sealing cavity is provided inside the bottle cap, a through hole is provided at the center of the top surface of the sealing cavity, and an internal thread is provided on the bottom side wall of the sealing cavity;

[0007] A sealing post is fixed to the top surface of the sealed cavity. The top surface of the sealing post is provided with a connecting hole, and a connecting bolt passing through the through hole is provided in the connecting hole.

[0008] A sealing ring is located at the top of the sealing cavity, the sealing ring is sleeved on the sealing post, and a guide slope is provided on the inner side of the bottom surface of the sealing ring;

[0009] The bottle body is provided with an annular connecting boss. The outer wall of the annular connecting boss is provided with an external thread. The external thread is threadedly connected to the internal thread. The sealing post extends into the annular connecting boss. The top of the annular connecting boss abuts against the guide slope.

[0010] Furthermore, the top surface of the sealing column is provided with several annular sealing bosses coaxially, and the top surface of the sealing cavity is provided with several annular sealing grooves, with the annular sealing bosses being engaged in the annular sealing grooves.

[0011] Furthermore, a guide surface is provided on the outer edge of the annular connecting boss, the guide surface abuts against the guide inclined surface, and the inclination of the guide surface is less than the inclination of the guide inclined surface.

[0012] Furthermore, the upper end of the through hole is provided with a relief groove, and the head of the connecting bolt is located in the relief groove.

[0013] Compared with the prior art, this utility model has the following beneficial effects:

[0014] This invention features a sealing post inside the bottle cap. In the assembled state, the sealing post extends into the annular connecting boss of the bottle body. The sealing post prevents the annular connecting boss from deforming, ensuring a tight connection between the internal and external threads. A sealing ring is also fitted on the sealing post. The annular connecting boss deforms inward along the guide slope of the sealing ring, making the fit between the annular connecting boss and the sealing post even tighter. Even when using a flexible bottle body, this product can still ensure a good sealing effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a first schematic diagram of the exploded structure of this utility model;

[0017] Figure 2 This is a second schematic diagram of the explosive structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0020] The utility model reference information is as follows:

[0021] 1. Bottle cap; 11. Sealing cavity; 111. Annular sealing groove; 12. Through hole; 13. Relief groove; 2. Sealing post; 21. Connecting hole; 22. Connecting bolt; 23. Annular sealing boss; 3. Sealing ring; 31. Guide slope; 4. Bottle body; 41. Annular connecting boss; 42. Guide surface;

[0022] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0023] 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.

[0024] This utility model proposes a leak-proof cosmetic dispensing bottle, including a bottle cap 1, see reference. Figure 1 , 2 The bottle cap 1 has a sealing cavity 11 inside, and a through hole 12 is provided at the center of the top surface of the sealing cavity 11. The bottom side wall of the sealing cavity 11 is provided with internal threads.

[0025] A sealing post 2 is fixed to the top surface of the sealed cavity 11. The top surface of the sealing post 2 is provided with a connecting hole 21. A connecting bolt 22 passing through the through hole 12 is provided in the connecting hole 21. The sealing post 2 is fixed in position by the connecting bolt 22.

[0026] The sealing ring 3 is located at the top of the sealing cavity 11. The sealing ring 3 is sleeved on the sealing post 2. The bottom surface of the sealing ring 3 is provided with a guide slope 31. The width of the sealing ring 3 just fills the gap between the sealing post 2 and the sealing cavity 11.

[0027] Bottle body 4, the bottle body 4 is provided with an annular connecting boss 41, the bottle body 4 and the annular connecting boss 41 are both made of silicone or other materials, the inner cavity of the annular connecting boss 41 is connected to the inner cavity of the bottle body 4, the outer wall of the annular connecting boss 41 is provided with an external thread, the external thread is threadedly connected to the internal thread.

[0028] See Figure 3 , 4 In the combined state, the sealing post 2 extends into the annular connecting boss 41. The outer diameter of the sealing post 2 is the same as the inner diameter of the annular connecting boss 41. The sealing post 2 can support the annular connecting boss 41 and prevent deformation. At the same time, during the tightening of the bottle cap 1, the top of the annular connecting boss 41 abuts against the guide slope 31 and deforms inward along the guide slope 31, making the fit between the annular connecting boss 41 and the sealing post 2 tighter. Even when using a flexible bottle body 4, this product can still have a good sealing effect.

[0029] See Figure 1 , 2The top surface of the sealing column 2 is provided with several annular sealing protrusions 23 coaxially, and the top surface of the sealing cavity 11 is provided with several annular sealing grooves 111. In the combined state, the annular sealing protrusions 23 are engaged in the annular sealing grooves 111 to ensure the sealing of the sealing cavity 11 itself and prevent the daily chemical products in the bottle 4 from deteriorating.

[0030] See Figure 1 , 4 The outer edge of the annular connecting boss 41 is provided with a guide surface 42, which abuts against the guide slope 31. If the Y-axis is taken as the reference, the inclination of the guide surface 42 is less than that of the guide slope 31. Thus, during the tightening of the bottle cap 1, the annular connecting boss 41 can deform inward as early as possible to improve the sealing effect of the product.

[0031] See Figure 1 The upper end of the through hole 12 is provided with a relief groove 13. In the combined state, the head of the connecting bolt 22 is located in the relief groove 13. A label can be pasted on the top of the bottle cap 1, thereby completely hiding the connecting bolt 22 and improving the overall appearance.

[0032] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All technical solutions that fall within the scope of the present utility model are protected by the present utility model.

Claims

1. A leak-proof cosmetic dispensing bottle, characterized in that: include A bottle cap, wherein a sealing cavity is provided inside the bottle cap, a through hole is provided at the center of the top surface of the sealing cavity, and an internal thread is provided on the bottom side wall of the sealing cavity; A sealing post is fixed to the top surface of the sealed cavity. The top surface of the sealing post is provided with a connecting hole, and a connecting bolt passing through the through hole is provided in the connecting hole. A sealing ring is located at the top of the sealing cavity, the sealing ring is sleeved on the sealing post, and a guide slope is provided on the inner side of the bottom surface of the sealing ring; The bottle body is provided with an annular connecting boss. The outer wall of the annular connecting boss is provided with an external thread. The external thread is threadedly connected to the internal thread. The sealing post extends into the annular connecting boss. The top of the annular connecting boss abuts against the guide slope.

2. The leakage-proof cosmetic sub-packaging bottle according to claim 1, characterized in that: The top surface of the sealing column is provided with several annular sealing bosses coaxially, and the top surface of the sealing cavity is provided with several annular sealing grooves, with the annular sealing bosses being engaged in the annular sealing grooves.

3. The leakage-proof cosmetic sub-packaging bottle according to claim 1, characterized in that: The outer edge of the annular connecting boss is provided with a guide surface, which abuts against the guide slope, and the inclination of the guide surface is less than the inclination of the guide slope.

4. A leak-proof cosmetic dispensing bottle according to claim 1, characterized in that: The upper end of the through hole is provided with a relief groove, and the head of the connecting bolt is located in the relief groove.

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