Cosmetic container

Abstract

This utility model discloses a cosmetic container, including a bottle body, a shoulder sleeve installed at the upper end of the bottle body, a vacuum pump installed on the shoulder sleeve, a continuous internal thread on the wall of a second groove, and a continuous external thread on the outer wall of the upper end of the bottle body. Two sets of vertically arranged first notches are symmetrically arranged at the upper end of the bottle body, interrupting the continuous external thread and forming multiple thread segments. A sealing ring is installed at the upper end of the bottle body, with its upper surface abutting against both the shoulder sleeve and the vacuum pump. The interruption of the external thread by the first notches allows for a more even distribution of pressure when the shoulder sleeve and bottle body are tightened, preventing localized overtightening and uneven deformation of the sealing ring due to complete thread connection. This ensures the sealing and airtightness of the bottle's interior, effectively controlling the piston's upward movement and efficiently converting pressing pressure into discharge power, ensuring smooth and controllable discharge, and reducing residue inside the bottle.

Description

Technical Field

[0001] This utility model relates to the field of cosmetic container technology, and more specifically, to a cosmetic container. Background Technology

[0002] While existing squeeze-type cosmetic bottles can expel contents through a squeezing action, a certain amount of contents always remains inside the bottle after use, resulting in a problem of excessive residue.

[0003] Therefore, a new solution is needed to address the above problems. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a cosmetic container.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cosmetic container includes a bottle body with a shoulder sleeve attached to its upper end. The upper part of the shoulder sleeve has a first groove for the nozzle to move up and down, and the lower part of the shoulder sleeve has a second groove for the upper part of the bottle body to be installed. A vacuum pump is mounted on the shoulder sleeve. The wall of the second groove has a continuous internal thread, and the outer wall of the upper part of the bottle body has a continuous external thread. The upper end of the bottle body has two sets of vertically arranged first notches symmetrically arranged, which interrupt the continuous external thread and form multiple thread segments. A sealing ring is installed at the upper end of the bottle body. The upper surface of the sealing ring abuts against both the shoulder sleeve and the vacuum pump. The edge of the sealing ring has two sets of second notches symmetrically arranged.

[0007] Furthermore, the cross section where the external thread is interrupted by the first notch is an inclined plane.

[0008] Furthermore, a piston is longitudinally arranged inside the bottle body, and two sets of small holes are symmetrically arranged at the bottom of the bottle body.

[0009] Furthermore, the piston includes an outer ring and an inner ring located inside the outer ring and connected to the inner wall of the outer ring. The outer ring is adapted to the inner cavity of the bottle and abuts against the inner wall of the bottle. The middle part of the inner ring is provided with a third groove adapted to the vacuum pump.

[0010] Furthermore, the inner bottom wall of the bottle body is provided with a protrusion that protrudes toward the piston, and the piston is lifted by the protrusion.

[0011] The beneficial effects of this utility model are:

[0012] 1. In this utility model, the continuity of the external thread is interrupted by the first notch, so that the pressure can be distributed more evenly when the shoulder sleeve and the bottle body are tightened. This avoids local overtightness and uneven deformation of the sealing ring caused by the complete connection of the threads, ensuring the sealing and airtightness of the bottle body. This effectively controls the upward movement of the piston, efficiently converting the pressing pressure into the discharge power, ensuring smooth and controllable discharge, and thus reducing the residue of contents in the bottle body.

[0013] 2. In this utility model, by symmetrically setting two sets of second notches on the edge of the sealing ring, the continuous contact area of ​​the sealing ring edge is reduced, making it easier to undergo elastic deformation under pressure, thereby better fitting the contact surfaces of the bottle body, shoulder sleeve and vacuum pump, and improving the sealing effect.

[0014] 3. In this utility model, the piston is raised by the protrusion so that the bottom of the piston can fully contact the outside air, ensuring the linearity and stability of the piston movement. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a cosmetic container in this embodiment;

[0016] Figure 2 This is a schematic diagram of a connection structure between the bottle body and the shoulder sleeve in this embodiment;

[0017] Figure 3 This is a cross-sectional view of the cosmetic container in this embodiment;

[0018] Figure 4 This is a schematic diagram of one structure of the bottle body in this embodiment;

[0019] Figure 5 This is a schematic diagram of the bottle body from another perspective in this embodiment;

[0020] Figure 6 This is a schematic diagram of one structure of the vacuum pump in this embodiment;

[0021] Figure 7 This is a schematic diagram of one structure of the shoulder sleeve in this embodiment.

[0022] Reference numerals: Bottle body 1, shoulder sleeve 2, inner shoulder sleeve 21, outer shoulder sleeve 22, first groove 3, second groove 4, vacuum pump 5, first convex ring 51, second convex ring 52, slot 53, internal thread 6, external thread 7, first notch 8, sealing ring 9, second notch 91, piston 10, outer ring 101, inner ring 102, third groove 103, small hole 11, protrusion 12, third convex ring 13, nozzle 14. 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] Example: A cosmetic container, such as Figures 1-7 As shown, the device includes a bottle body 1, which is made of plastic. A shoulder sleeve 2 is installed on the upper end of the bottle body 1. A first groove 3 is provided on the upper part of the shoulder sleeve 2 for the nozzle 14 to move up and down. A second groove 4 is provided on the lower part of the shoulder sleeve 2 for the upper end of the bottle body 1 to be installed. A vacuum pump 5 is installed on the shoulder sleeve 2.

[0025] When the shoulder sleeve 2 is installed on the bottle body 1, the upper end of the bottle body 1 is located in the second groove 4 of the shoulder sleeve 2 and is threadedly connected to the shoulder sleeve 2. At this time, the lower part of the vacuum pump 5 is inserted into the bottle body 1, and the upper part of the vacuum pump 5 extends to the outside of the first groove 3 of the shoulder sleeve 2 and is connected to the nozzle 14. In use, pressing the nozzle 14 drives the vacuum pump 5 to pump the contents of the bottle body 1 to the nozzle 14 and squeeze them out through the discharge hole of the nozzle 14.

[0026] As a preferred option, such as Figure 3 and Figure 6 As shown, the vacuum pump 5 has a first convex ring 51 and a second convex ring 52 in the middle. The second convex ring 52 is located above the first convex ring 51, and the first convex ring 51 and the second convex ring 52 are combined to form a slot 53 for the third convex ring 13 to engage. The shoulder sleeve 2 has a third convex ring 13 that is compatible with the slot 53. The vacuum pump 5 is stably installed on the shoulder sleeve 2 through the engagement of the third convex ring 13 and the slot 53, which improves the connection strength between the vacuum pump 5 and the shoulder sleeve 2 and prevents the vacuum pump 5 from detaching from the shoulder sleeve 2.

[0027] Furthermore, such as Figure 4 , Figure 5 and Figure 7 As shown, the second groove 4 of the shoulder sleeve 2 has a full internal thread 6 on its groove wall, and the outer wall of the upper end of the bottle body 1 has a full external thread 7. The upper end of the bottle body 1 has two sets of vertically arranged first notches 8 symmetrically arranged, and the full external thread 7 is interrupted by the two sets of first notches 8 to form multiple sets of thread segments. A sealing ring 9 is installed at the upper end of the bottle body 1, and the upper surface of the sealing ring 9 abuts against the shoulder sleeve 2 and the vacuum pump 5.

[0028] In this embodiment, two sets of first notches 8 interrupt the entire external thread 7, forming five sets of thread segments. By interrupting the continuity of the external thread 7 through the first notches 8, the pressure can be distributed more evenly when the shoulder sleeve 2 and the bottle body 1 are tightened, avoiding local overtightening and uneven deformation of the sealing ring 9 due to complete thread connection. This ensures the sealing and airtightness of the bottle body 1, thereby effectively controlling the upward movement of the piston 10 and efficiently converting the pressing pressure into discharge power, ensuring smooth and controllable discharge. That is, the contents inside the bottle body 1 are stably and smoothly extruded, and the discharge is not intermittent, thereby reducing the residue of the contents inside the bottle body 1. At the same time, the first notches 8 can reduce the complexity of the mold and facilitate the demolding of the bottle body 1.

[0029] Preferably, the section where the external thread 7 is interrupted by the first notch 8 is a bevel. The bevel serves two purposes: first, it can disperse the stress at the threaded connection, avoiding local cracks caused by right-angled sections, thereby extending the service life of the bottle body 1 and the shoulder sleeve 2; second, it makes it easier to align the threads when screwing with the shoulder sleeve 2, reducing assembly resistance.

[0030] As a preferred option, such as Figure 4 and Figure 5 As shown, the sealing ring 9 has two sets of second notches 91 symmetrically arranged on its edge. By setting the second notches 91, the continuous contact area of ​​the edge of the sealing ring 9 is reduced, making it easier to undergo elastic deformation under pressure, thereby better fitting the contact surfaces of the bottle body 1, shoulder sleeve 2 and vacuum pump 5, and improving the sealing effect.

[0031] Preferably, the inner hole of the sealing ring 9 is adapted to the vacuum pump 5, and the inner wall of the sealing ring 9 abuts against the outer surface of the vacuum pump 5.

[0032] Furthermore, such as Figure 3 As shown, a piston 10 is longitudinally arranged inside the bottle body 1, and two sets of small holes 11 are symmetrically arranged at the bottom of the bottle body 1. By setting the small holes 11, the area enclosed by the lower part of the piston 10 and the bottle body 1 is connected to the outside air, so that the piston 10 can move upward when the contents inside the bottle body 1 decrease.

[0033] Preferably, the inner bottom wall of the bottle body 1 is provided with a protrusion 12 that protrudes towards the piston 10, and the piston 10 is lifted by the protrusion 12. By lifting the piston 10, the bottom of the piston 10 can be in full contact with the outside air, ensuring the linearity and stability of the piston 10's movement.

[0034] Preferably, the piston 10 includes an outer ring 101 and an inner ring 102 located inside the outer ring 101 and connected to the inner wall of the outer ring 101. The outer ring 101 is adapted to the inner cavity of the bottle body 1 and abuts against the inner wall of the bottle body 1. The middle part of the inner ring 102 is provided with a third groove 103 adapted to the vacuum pump 5.

[0035] When the piston 10 moves upward, the outer ring 101 of the piston 10 abuts against the inner wall of the bottle body 1, scraping the contents adhering to the inner wall of the bottle body 1 to the inner ring 102. By providing a third groove 103, when the contents inside the bottle body 1 decrease to a minimum, the contents will flow into the third groove 103. The third groove 103 serves to hold a small amount of contents, allowing the vacuum pump 5 to be inserted into the third groove 103 to suck up the small amount of contents. It should be noted that some contents will remain in the gap formed by the combination of the outer ring 101 and the inner ring 102, but due to the size of this gap, the amount of remaining contents is trace. Furthermore, this gap can be optimized to further reduce its size, thereby further reducing the amount of remaining contents.

[0036] As a preferred option, such as Figure 3 and Figure 7 As shown, the shoulder sleeve 2 includes an inner shoulder sleeve 21 and an outer shoulder sleeve 22. The inner shoulder sleeve 21 is fixedly installed inside the inner cavity of the outer shoulder sleeve 22, and the internal thread 6 and the third protruding ring 13 are disposed inside the inner shoulder sleeve 21. By setting the shoulder sleeve 2 into a split structure, the outer shoulder sleeve 22 provides a certain degree of protection for the inner shoulder sleeve 21, while also enhancing the overall aesthetics of the shoulder sleeve 2.

[0037] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A cosmetic container, comprising a bottle body (1), a shoulder sleeve (2) mounted on the upper end of the bottle body (1), a first groove (3) for a nozzle (14) to move up and down on the upper part of the shoulder sleeve (2), a second groove (4) for the upper end of the bottle body (1) to be mounted on the lower part of the shoulder sleeve (2), and a vacuum pump (5) mounted on the shoulder sleeve (2), characterized in that, The second groove (4) has a full internal thread (6) on its groove wall, and the outer wall of the upper end of the bottle body (1) has a full external thread (7). The upper end of the bottle body (1) has two sets of vertically arranged first notches (8) symmetrically arranged, and the full external thread (7) is interrupted by the two sets of first notches (8) to form multiple sets of thread segments. The upper end of the bottle body (1) is equipped with a sealing ring (9). The upper surface of the sealing ring (9) simultaneously abuts against the shoulder sleeve (2) and the vacuum pump (5). The edge of the sealing ring (9) has two sets of second notches (91) symmetrically arranged.

2. A cosmetic container according to claim 1, characterized in that, The section where the external thread (7) is interrupted by the first notch (8) is an inclined plane.

3. A cosmetic container according to claim 1, characterized in that, A piston (10) is longitudinally arranged inside the bottle body (1), and two sets of small holes (11) are symmetrically arranged at the bottom of the bottle body (1).

4. A cosmetic container according to claim 3, characterized in that, The piston (10) includes an outer ring (101) and an inner ring (102) located inside the outer ring (101) and connected to the inner wall of the outer ring (101). The outer ring (101) is adapted to the inner cavity of the bottle body (1) and abuts against the inner wall of the bottle body (1). The middle part of the inner ring (102) is provided with a third groove (103) adapted to the vacuum pump (5).

5. A cosmetic container according to claim 3, characterized in that, The inner bottom wall of the bottle body (1) is provided with a protrusion (12) that protrudes toward the piston (10), and the piston (10) is lifted by the protrusion (12).

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