A cosmetic bottle

Abstract

This application relates to the field of cosmetic technology, and in particular to a cosmetic bottle, comprising a lower bottle body, an upper bottle body rotatably mounted on top of the lower bottle body, and a cap mounted on top of the upper bottle body. A liquid storage cavity is formed within the lower bottle body, and a liquid outlet is formed on the top of the upper bottle body. The liquid storage cavity and the liquid outlet are switched between closed and open by rotating the liquid outlet structure. The lower bottle body is semi-heart-shaped, and the upper bottle body and cap, when combined, form the other half of a heart shape. The upper bottle body and cap can be rotated 180° relative to the lower bottle body to change from a heart shape to an ellipse shape. When switching from a heart shape to an ellipse, the liquid storage cavity and the liquid outlet switch from a closed state to an open state. This application has two forms. In the non-use state, the heart-shaped form is smaller and more aesthetically pleasing, more likely to be favored by users, and easier to carry. In the use state, the ellipse shape has a more rounded shape, a more comfortable grip, and a better user experience.

Description

Technical Field

[0001] This application relates to the field of cosmetic technology, and in particular to a cosmetic bottle. Background Technology

[0002] Cosmetic bottles are containers for packaging cosmetics. Their design must not only be aesthetically pleasing but also consider product protection, ease of use, and environmental friendliness. The material, shape, and function of cosmetic bottles are all crucial factors, as they directly impact product preservation, user experience, and brand image.

[0003] Current cosmetic bottles typically use a pump dispenser and are usually designed as large cubes or cylinders. This shape is bulky, unattractive, inconvenient to carry and use, and severely impacts the user experience. Therefore, further improvements are possible. Utility Model Content

[0004] In order to further improve the user experience, this application provides a cosmetic bottle.

[0005] The cosmetic bottle provided in this application adopts the following technical solution:

[0006] A cosmetic bottle includes a lower bottle body, an upper bottle body rotatably mounted on top of the lower bottle body, and a cap mounted on top of the upper bottle body. A liquid storage cavity is formed within the lower bottle body, and a liquid outlet is formed at the top of the upper bottle body. The liquid storage cavity and the liquid outlet are switched between closed and open by rotating a liquid outlet structure. The lower bottle body is semi-heart-shaped, and the upper bottle body and cap, when combined, form the other half of a heart shape. The upper bottle body and cap can be rotated 180° relative to the lower bottle body to change from a heart shape to an ellipse shape. When changing from a heart shape to an ellipse, the liquid storage cavity and the liquid outlet switch from a closed state to an open state.

[0007] By adopting the above technical solution, when not in use, the upper bottle and cap can be rotated and combined with the lower bottle to form a heart shape. At this time, the liquid reservoir and dispensing hole are closed, indicating a non-use state where it can be stored and carried. When needed, the upper bottle and cap can be rotated 180° relative to the lower bottle to change from a heart shape to an oval shape. At this time, the liquid reservoir and dispensing hole are open, indicating a use state where the cosmetic solution can be poured out. In the non-use state, the heart shape is smaller and more aesthetically pleasing, making it more appealing to users and easier to carry. In the use state, the oval shape has a more rounded shape, providing a more comfortable grip and a better user experience.

[0008] Optionally, the rotating dispensing structure includes an intermediate connector. A first connector is fixedly disposed inside the upper bottle body at the dispensing hole position, and a second connector is formed on the top of the lower bottle body. The intermediate connector is installed between the first connector and the second connector, with the top of the intermediate connector rotatably inserted into the first connector and the bottom of the intermediate connector fixedly connected to the second connector. An upper flow channel and a lower flow channel are formed at the upper and lower ends of the intermediate connector, respectively. The upper port of the upper flow channel extends through the top of the intermediate connector and communicates with the dispensing hole through the first connector. The lower end of the upper flow channel... The opening extends through the side of the intermediate connector and is enclosed within the first connector; the lower port of the lower channel extends through the bottom of the intermediate connector and is connected to the liquid storage chamber through the second connector; the upper port of the lower channel extends through the side of the intermediate connector and is enclosed within the inner wall of the first connector; the lower port of the upper channel and the upper port of the lower channel are arranged on the same side; a gate channel is provided on the inner wall of the first connector between the lower port of the upper channel and the upper port of the lower channel; and when the shape changes from heart-shaped to elliptical, the lower port of the upper channel, the gate channel, and the upper port of the lower channel change from a closed state to a connected state.

[0009] By adopting the above technical solution, when switching to the heart-shaped state, the lower port of the upper flow channel, the gate flow channel, and the upper port of the lower flow channel are closed, and no liquid can be discharged, indicating a non-use state. When switching from the heart-shaped state to the elliptical state, the lower port of the upper flow channel, the gate flow channel, and the upper port of the lower flow channel are connected, allowing the cosmetic solution in the liquid storage chamber of the lower bottle to flow out through the lower flow channel, the gate flow channel, and the upper flow channel before being used, indicating a use state.

[0010] Optionally, a third connector is formed inside the upper bottle body at the position of the liquid outlet. The top of the first connector is inserted into the third connector and communicates with the liquid outlet. A limiting plate is formed on the side wall of the first connector. A limiting groove is formed inside the third connector. The limiting plate is inserted into the limiting groove from bottom to top.

[0011] By adopting the above technical solution, during the assembly process, the first connector is installed on the third connector that is inserted into the upper bottle body from bottom to top. After installation, its top is inserted into the liquid outlet hole, and the limiting plate is inserted into the limiting slot to fix the first connector at the liquid outlet hole of the upper bottle body, so as to form a pluggable and detachable installation assembly.

[0012] Optionally, the bottom of the intermediate connector is threadedly connected to the second connector. The bottom of the intermediate connector is formed with a first limiting block, and the outside of the second connector is formed with a first limiting slot. When the intermediate connector is screwed in and threadedly connected to the second connector, the first limiting block can be elastically engaged in the first limiting slot.

[0013] By adopting the above technical solution, when the intermediate connector is screwed in and threaded to the second connector, the first limiting block elastically engages with the first limiting slot to lock it in place. When a certain force is applied in the opposite direction and the intermediate connector is unscrewed, the first limiting block can disengage from the first limiting slot for disassembly, allowing the lower bottle to be opened for liquid filling, thus enabling the bottle to be reused for liquid filling.

[0014] Optionally, a fourth connector is provided inside the upper bottle body on the outside of the first connector. The fourth connector is rotatably plugged into the bottom part of the middle connector. The inner wall of the fourth connector is formed with an annular groove, and the bottom outer wall of the middle connector is formed with an annular hook. When the middle connector is inserted into the fourth connector, the annular hook is elastically engaged in the annular groove. The bottom of the fourth connector is formed with a second limiting block, and the bottom outer wall of the middle connector is formed with a support plate. Two limiting blocks are respectively provided on the top two sides of the support plate. When the shape changes from heart-shaped to elliptical, the second limiting block changes from one of the limiting blocks to a state where it is opposite to the other limiting block.

[0015] By adopting the above technical solution, during the assembly process, after the first connector is installed, the intermediate connector is first installed on the upper bottle body, inserting it into the fourth connector in the upper bottle body. Then, the upper bottle body, together with the intermediate connector, is installed on the lower bottle body. When screwing the intermediate connector into the second connector, the second limiting block at the bottom of the fourth connector is rotated to contact the limiting stop at the bottom of the intermediate connector. At this time, with the resistance between the limiting stop and the second limiting block, the intermediate connector can be rotated and screwed in by rotating the upper bottle body, until the first limiting block at the bottom of the intermediate connector elastically engages in the first limiting slot outside the second connector for locking. When it is necessary to unscrew the upper bottle body in the reverse direction, rotate the second limiting block at the bottom of the fourth connector to the position where it contacts the limiting block on the other side of the bottom of the middle connector. At this time, with the resistance between the limiting block and the second limiting block, the middle connector can be rotated by rotating the upper bottle body, so that the first limiting block at the bottom of the middle connector is elastically disengaged from the first limiting slot outside the second connector until it is completely unscrewed.

[0016] Optionally, the top of the tray portion in the intermediate connector is further provided with a ramp near the limiting block. The ramp and the limiting block form a second limiting slot. When the shape changes from heart-shaped to elliptical, the second limiting block is elastically engaged by switching from one second limiting slot to the other. The disengagement force between the second limiting block and the second limiting slot is less than the disengagement force between the first limiting block and the first limiting slot.

[0017] By adopting the above technical solution, during normal use, when switching from a heart shape to an ellipse, the second limiting block elastically engages by switching from one second limiting slot to the other, thus providing elastic locking between the heart-shaped and ellipse states for ease of use. Since the release force between the second limiting block and the second limiting slot is less than the release force between the first limiting block and the first limiting slot, during the heart-to-ellipse switching process during normal use, when the second limiting block releases from the second limiting slot, it will not cause the first limiting block to release from the first limiting slot, ensuring the locked installation state of the intermediate connector.

[0018] Optionally, a partition is also installed at the bottom of the upper bottle body. The partition is capped and installed on the upper bottle body and is elastically engaged with the inner wall of the upper bottle body. The middle part of the partition is open for the intermediate connector to pass through and be installed.

[0019] By adopting the above technical solution, after the partition is installed, the interior of the upper bottle can be separated to form an installation chamber.

[0020] Optionally, the bottle cap and the upper bottle body are connected by a flexible snap-fit ​​connection.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. This application has two forms. When not in use, the heart-shaped form is smaller and more aesthetically pleasing, making it more appealing to users and easier to carry. When in use, the oval form has a more rounded shape, providing a more comfortable grip and a better user experience.

[0023] 2. When switched to the heart-shaped state, the lower port of the upper flow channel, the gate flow channel, and the upper port of the lower flow channel are closed. No liquid can be dispensed at this time; it is in a non-use state. When switched from the heart-shaped state to the elliptical state, the lower port of the upper flow channel, the gate flow channel, and the upper port of the lower flow channel are connected. The cosmetic solution in the liquid storage chamber of the lower bottle can flow out through the lower flow channel, the gate flow channel, and the upper flow channel before being used. This is the use state.

[0024] 3. In this application, the lower bottle can be opened for liquid filling, so as to realize the reuse of the bottle for liquid filling. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a cosmetic bottle when it switches to a heart-shaped state according to this application.

[0026] Figure 2 This is a schematic diagram of the structure of a cosmetic bottle when it switches to an oval shape according to this application.

[0027] Figure 3 This is a cross-sectional view of a cosmetic bottle in the present application when it is switched to a heart-shaped state.

[0028] Figure 4 This is a cross-sectional view of a cosmetic bottle in this application when it is switched to an oval shape.

[0029] Figure 5 This is a perspective view of the heart-shaped bottle after removing the upper body, cap, and partition.

[0030] Figure 6 This is an internal view of the upper bottle body and cap assembled in this application.

[0031] Figure 7 yes Figure 5 The front view.

[0032] Figure 8 yes Figure 3 Enlarged view of section A in the middle.

[0033] Figure 9 yes Figure 3 Enlarged view of section B.

[0034] Figure 10 This is an exploded view of the upper bottle body and cap portion in this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Lower bottle body; 11. Liquid storage chamber; 2. Upper bottle body; 21. Liquid outlet; 22. Notch; 3. Bottle cap; 4. Partition; 5. Intermediate connector; 51. Upper flow channel; 52. Lower flow channel; 53. First limiting block; 54. Annular hook; 55. Support plate; 56. Limiting block; 57. Slope; 58. Second limiting slot; 6. First connector; 61. Gate flow channel; 62. Limiting plate; 7. Second connector; 71. First limiting slot; 8. Third connector; 81. Limiting groove; 9. Fourth connector; 91. Annular groove; 92. Second limiting block. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0038] This application discloses a cosmetic bottle.

[0039] Reference Figure 1-4A cosmetic bottle includes a lower bottle body 1, an upper bottle body 2 rotatably mounted on top of the lower bottle body 1, and a cap 3 mounted on top of the upper bottle body 2. The lower bottle body 1 has a liquid storage cavity 11 formed inside, and the upper bottle body 2 is a shell-shaped structure with an open bottom and a liquid outlet 21 formed on its top. The liquid storage cavity 11 and the liquid outlet 21 are switched to be closed or opened by a rotating liquid outlet structure.

[0040] In this embodiment, the lower bottle body 1 is half heart-shaped, and the upper bottle body 2 and the bottle cap 3 form the other half heart shape after being combined. The upper bottle body 2 and the bottle cap 3 can be rotated 180° relative to the lower bottle body 1 to switch from a heart shape to an ellipse shape. When switching from a heart shape to an ellipse shape, the liquid storage cavity 11 and the liquid outlet 21 switch from a closed state to an open state.

[0041] When not in use, rotate the upper bottle body 2 and cap 3 together with the lower bottle body 1 to form a heart shape. At this point, the liquid reservoir 11 and the dispensing hole 21 are closed, indicating a non-use state, and the container can be stored and carried. When needed, rotate the upper bottle body 2 and cap 3 180° relative to the lower bottle body 1 to change the shape from heart to ellipse. At this point, the liquid reservoir 11 and the dispensing hole 21 are open, indicating a use state, and the cosmetic solution can be poured out.

[0042] Reference Figure 3 , 4 Specifically, in this embodiment, the rotating dispensing structure includes an intermediate connector 5. A first connector 6 is fixedly disposed inside the upper bottle body 2 at the position of the dispensing hole 21, and the first connector 6 is connected to the dispensing hole 21. A second connector 7 is formed on the top of the lower bottle body 1, and the second connector 7 is connected to the liquid storage chamber 11. The intermediate connector 5 is installed between the first connector 6 and the second connector 7, and the top of the intermediate connector 5 is rotatably inserted into the first connector 6, while the bottom of the intermediate connector 5 is fixedly connected to the second connector 7.

[0043] The intermediate connector 5 has an upper flow channel 51 and a lower flow channel 52 formed at its upper and lower ends, respectively. The upper port of the upper flow channel 51 extends through the top of the intermediate connector 5 and is connected to the liquid outlet 21 through the first connector 6; the lower port of the upper flow channel 51 extends through the side of the intermediate connector 5 and is closed within the inner wall of the first connector 6. The lower port of the lower flow channel 52 extends through the bottom of the intermediate connector 5 and is connected to the liquid storage chamber 11 through the second connector 7; the upper port of the lower flow channel 52 extends through the side of the intermediate connector 5 and is closed within the inner wall of the first connector 6. The lower ports of the upper flow channel 51 and the upper ports of the lower flow channel 52 are arranged on the same side. The inner wall of the first connector 6 has a gate flow channel 61 between the lower port of the upper flow channel 51 and the upper port of the lower flow channel 52. When the shape changes from heart-shaped to elliptical, the upper bottle body 2 rotates 180° relative to the middle connector 5. The gate flow channel 61 changes from the opposite side to the same side as the lower port of the upper flow channel 51 and the upper port of the lower flow channel 52. At this time, the lower port of the upper flow channel 51, the gate flow channel 61, and the upper port of the lower flow channel 52 change from a closed state to a connected state.

[0044] When switched to the heart-shaped state, the lower port of the upper flow channel 51, the gate flow channel 61, and the upper port of the lower flow channel 52 are closed, and no liquid can be dispensed; this is the non-use state. When switched from the heart-shaped state to the elliptical state, the lower port of the upper flow channel 51, the gate flow channel 61, and the upper port of the lower flow channel 52 are connected, and the cosmetic solution in the liquid storage chamber 11 of the lower bottle body 1 can flow out through the lower flow channel 52, the gate flow channel 61, and the upper flow channel 51 and then out through the liquid outlet 21 for use; this is the use state.

[0045] Reference Figure 5 , 6 Specifically, in this embodiment, a third connector 8 is formed inside the upper bottle body 2 at the position of the liquid outlet 21. The top of the first connector 6 is inserted into the third connector 8 and communicates with the liquid outlet 21. A limiting plate 62 is formed on the side wall of the first connector, and a limiting groove 81 is formed inside the third connector 8.

[0046] During the assembly process, the first connector 6 is installed from bottom to top on the upper bottle body 2. After installation, its top is inserted into the liquid outlet 21, and the limiting plate 62 is inserted into the limiting groove 81 to fix the first connector 6 at the liquid outlet 21 of the upper bottle body 2, so as to form a pluggable and detachable installation assembly.

[0047] The number of limiting plates 62 corresponds one-to-one with the number of limiting slots 81. In this embodiment, there are two limiting plates 62, corresponding to two limiting slots 81, each corresponding to one of the two limiting plates 62. In other embodiments, the number of limiting plates 62 can be one, three, or other quantities.

[0048] Reference Figure 3 , 4 7. In this embodiment, the bottom of the intermediate connector 5 is threadedly connected to the second connector 7, and the bottom of the intermediate connector 5 is threadedly fitted onto the second connector 7. A first limiting block 53 is formed at the bottom of the intermediate connector 5, and a first limiting slot 71 is formed on the outside of the second connector 7. When the intermediate connector 5 is screwed in and threadedly connected to the second connector 7, the first limiting block 53 elastically engages within the first limiting slot 71 for locking. When a certain force is applied in the opposite direction to unscrew the intermediate connector 5, the first limiting block 53 can disengage from the first limiting slot 71 for disassembly.

[0049] Reference Figure 5 , 6 8. In this embodiment, a fourth connector 9 is provided inside the upper bottle body 2 on the outside of the first connector 6. The fourth connector 9 is rotatably plugged into the bottom part of the intermediate connector 5. The inner wall of the fourth connector 9 is formed with an annular groove 91, and the bottom outer wall of the intermediate connector 5 is formed with an annular hook 54. When the intermediate connector 5 is inserted into the fourth connector 9, the annular hook 54 is elastically engaged in the annular groove 91 for upper and lower limit treatment. When a certain pulling force is applied outward, the annular hook 54 can be disengaged from the annular groove 91 and the intermediate connector 5 can be pulled out to form a pluggable snap-fit ​​assembly.

[0050] Reference Figure 5 , 6 The bottom of the fourth connector 9 is formed with a second limiting block 92, and the bottom outer wall of the middle connector 5 is formed with a support plate 55. Two limiting blocks 56 are respectively provided on the top two sides of the support plate 55. When the heart shape is changed to an ellipse shape, the second limiting block 92 is switched from one of the limiting blocks 56 to a state of being opposite to the other limiting block 56.

[0051] The top of the tray portion 55 in the intermediate connector 5 is also provided with a ramp 57 near the limiting block 56. A second limiting slot 58 is formed between the ramp 57 and the limiting block 56. When the shape changes from heart-shaped to elliptical, the second limiting block 92 elastically engages with the other limiting slot 58. Furthermore, the release force between the second limiting block 92 and the second limiting slot 58 is less than the release force between the first limiting block 53 and the first limiting slot 71.

[0052] During assembly, after the first connector 6 is installed, the intermediate connector 5 is first installed on the upper bottle body 2, so that it is inserted into the fourth connector 9 in the upper bottle body 2. Then, the upper bottle body 2 together with the intermediate connector 5 is installed on the lower bottle body 1. When the intermediate connector 5 is screwed into the second connector 7, the second limiting block 92 at the bottom of the fourth connector 9 is rotated to a position where it contacts the limiting stop 56 at the bottom of the intermediate connector 5. At this time, with the blocking force between the limiting stop 56 and the second limiting block 92, the intermediate connector 5 can be rotated and screwed in by rotating the upper bottle body 2, until the first limiting block 53 at the bottom of the intermediate connector 5 is elastically engaged in the first limiting slot 71 outside the second connector 7 to lock it in place.

[0053] When it is necessary to unscrew the upper bottle body 2 in the reverse direction, rotate the second limiting block 92 at the bottom of the fourth connector 9 to a position where it contacts the limiting block 56 on the other side of the bottom of the middle connector 5. At this time, with the blocking force between the limiting block 56 and the second limiting block 92, the middle connector 5 can be rotated by rotating the upper bottle body 2, so that the first limiting block 53 at the bottom of the middle connector 5 is elastically disengaged from the first limiting slot 71 outside the second connector 7 until it is completely unscrewed.

[0054] During normal use, when switching from a heart shape to an ellipse shape, the second limiting block 92 elastically engages with the other limiting slot 58 by switching between one of the second limiting slots 58, thus providing elastic locking between the heart-shaped and ellipse states for ease of use. Since the release force between the second limiting block 92 and the second limiting slot 58 is less than the release force between the first limiting block 53 and the first limiting slot 71, during the heart-to-ellipse switching process, when the second limiting block 92 releases from the second limiting slot 58, it will not cause the first limiting block 53 to release from the first limiting slot 71, ensuring the locked installation state of the intermediate connector 5.

[0055] Reference Figure 3 In this embodiment, a partition 4 is also installed at the bottom of the upper bottle body 2. The partition 4 is installed on the upper bottle body 2 and is elastically engaged with the inner wall of the upper bottle body 2. The middle part of the partition 4 is open for the intermediate connector 5 to pass through and be installed. After the partition 4 is installed, the interior of the upper bottle body 2 can be separated to form an installation chamber.

[0056] Reference Figure 10In this embodiment, the bottle cap 3 and the upper bottle body 2 are connected by an elastic snap-fit ​​connection. The outer wall of the upper bottle body 2 is formed with a notch 22, and correspondingly, the inner wall of the bottle cap 3 is formed with a locking post. When the bottle cap 3 is attached to the upper bottle body 2, the locking post inside the bottle cap 3 engages with the notch 22 in the upper bottle body 2 to form a snap-fit ​​connection, which facilitates the installation or removal of the bottle cap 3.

[0057] The operating principle is as follows: When not in use, the upper bottle body 2 and bottle cap 3 are rotated and combined with the lower bottle body 1 to form a heart shape. At this time, the liquid storage chamber 11 and the liquid outlet 21 are closed through the rotating liquid outlet structure, indicating a non-use state where the product can be stored and carried. When in use, the upper bottle body 2 and bottle cap 3 are rotated 180° relative to the lower bottle body 1 to change from a heart shape to an elliptical shape. At this time, the liquid storage chamber 11 and the liquid outlet 21 are opened through the rotating liquid outlet structure, indicating a use state where the cosmetic solution can be poured out.

[0058] These are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cosmetic bottle, characterized in that: The device includes a lower bottle body (1), an upper bottle body (2) rotatably mounted on the top of the lower bottle body (1), and a bottle cap (3) mounted on the top of the upper bottle body (2). The lower bottle body (1) has a liquid storage cavity (11) formed inside, and the upper bottle body (2) has a liquid outlet hole (21) formed on the top. The liquid storage cavity (11) and the liquid outlet hole (21) can be switched between closed and open by rotating the liquid outlet structure. The lower bottle body (1) is half heart-shaped, and the upper bottle body (2) and the bottle cap (3) form the other half heart shape after being combined. The upper bottle body (2) and the bottle cap (3) can be switched from heart shape to ellipse shape by rotating 180° relative to the lower bottle body (1). When switching from heart shape to ellipse shape, the liquid storage cavity (11) and the liquid outlet hole (21) switch from closed state to open state.

2. A cosmetic bottle according to claim 1, characterized in that: The rotating liquid dispensing structure includes an intermediate connector (5). A first connector (6) is fixedly installed inside the upper bottle body (2) at the position of the liquid outlet (21). A second connector (7) is formed on the top of the lower bottle body (1). The intermediate connector (5) is installed between the first connector (6) and the second connector (7). The top of the intermediate connector (5) is rotatably inserted into the first connector (6), and the bottom of the intermediate connector (5) is fixedly connected to the second connector (7). An upper flow channel (51) and a lower flow channel (52) are formed at the upper and lower ends of the intermediate connector (5). The upper port of the upper flow channel (51) passes through the top of the intermediate connector (5) and is connected to the liquid outlet (21) through the first connector (6). The lower end of the upper flow channel (51) The opening extends through the side of the intermediate connector (5) and is enclosed within the first connector (6); the lower port of the lower channel (52) extends through the bottom of the intermediate connector (5) and is connected to the liquid storage chamber (11) through the second connector (7); the upper port of the lower channel (52) extends through the side of the intermediate connector (5) and is enclosed within the inner wall of the first connector (6); the lower port of the upper channel (51) is arranged on the same side as the upper port of the lower channel (52), and a gate channel (61) is opened between the lower port of the upper channel (51) and the upper port of the lower channel (52) on the inner wall of the first connector (6), and when the shape changes from heart-shaped to elliptical, the lower port of the upper channel (51), the gate channel (61), and the upper port of the lower channel (52) are switched from a closed state to a connected state.

3. A cosmetic bottle according to claim 2, wherein: The upper bottle body (2) has a third connector (8) formed at the position of the liquid outlet (21). The top of the first connector (6) is inserted into the third connector (8) and communicates with the liquid outlet (21). The side wall of the first connector (6) is formed with a limiting plate (62). The third connector (8) has a limiting groove (81) formed inside. The limiting plate (62) is inserted into the limiting groove (81) from bottom to top.

4. A cosmetic bottle as claimed in claim 3, characterized in that: The bottom of the intermediate connector (5) is threadedly connected to the second connector (7). The bottom of the intermediate connector (5) is formed with a first limiting block (53), and the outside of the second connector (7) is formed with a first limiting slot (71). When the intermediate connector (5) is screwed in and threadedly connected to the second connector (7), the first limiting block (53) can be elastically engaged in the first limiting slot (71).

5. A cosmetic bottle as claimed in claim 4, characterised in that: The upper bottle body (2) is provided with a fourth connector (9) outside the first connector (6). The fourth connector (9) is rotatably plugged into the bottom part of the middle connector (5). The inner wall of the fourth connector (9) is formed with an annular groove (91). The bottom outer wall of the middle connector (5) is formed with an annular hook (54). When the middle connector (5) is inserted into the fourth connector (9), the annular hook (54) is elastically engaged in the annular groove (91). The bottom of the fourth connector (9) is formed with a second limiting block (92). The bottom outer wall of the middle connector (5) is formed with a tray (55). The top two sides of the tray (55) are respectively provided with two limiting blocks (56). When the shape changes from heart-shaped to elliptical, the second limiting block (92) is switched from one of the limiting blocks (56) to a state of being opposite to the other limiting block (56).

6. A cosmetic bottle according to claim 5, wherein: The top of the tray portion (55) in the intermediate connector (5) is also provided with a ramp (57) near the position of the limiting block (56). The ramp (57) and the limiting block (56) form a second limiting slot (58). When the shape changes from heart-shaped to elliptical, the second limiting block (92) is elastically engaged by switching from one second limiting slot (58) to the other second limiting slot (58). The disengagement force between the second limiting block (92) and the second limiting slot (58) is less than the disengagement force between the first limiting block (53) and the first limiting slot (71).

7. A cosmetic bottle as defined in claim 5, wherein: The bottom of the upper bottle body (2) is also equipped with a partition (4). The partition (4) is installed on the upper bottle body (2) and is elastically engaged with the inner wall of the upper bottle body (2). The middle part of the partition (4) is open for the intermediate connector (5) to be installed.

8. The cosmetic bottle of claim 1, wherein: The bottle cap (3) and the upper bottle body (2) are connected by an elastic snap-fit ​​connection.

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