Nail polish bottle cap and nail polish bottle

Abstract

The utility model relates to the technical field of cosmetics, in particular to a nail polish bottle cap and a nail polish bottle. The utility model relates to a nail polish bottle cap, which comprises a cap body, a bottle cap and a bottle cap body, the brush rod is arranged in the opening of the accommodating groove in a penetrating manner; at least part of the elastic piece is arranged in the containing groove, one end of the elastic piece is connected with the cover body in the depth direction of the containing groove, the other end of the elastic piece is connected with the brush rod, and when the elastic piece is in a free state, the length of the portion, stretching out of the containing groove, of the brush rod is larger than or equal to the depth of the nail polish bottle body. According to the nail polish bottle cap, the utilization rate of nail polish can be increased, and the problem that the nail polish is not utilized thoroughly is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cosmetics, in particular to a nail polish bottle cap and a nail polish bottle. Background Art

[0002] Nail polish is mainly used to apply on the surface of nails. Nail polish is generally stored in a nail polish bottle. The brush rod used to apply nail polish is generally installed on the bottle cap of the nail polish bottle. During the use of nail polish, the nail polish in the nail polish bottle is continuously reduced. When the nail polish is almost used up, the nail polish inside the nail polish bottle is generally at the bottom of the bottle. The nail polish brush cannot be adjusted in length and cannot quickly contact the nail polish at the bottom of the bottle, resulting in low utilization rate of the nail polish. Summary of the invention

[0003] The utility model provides a nail polish bottle cap and a nail polish bottle, so as to solve the technical problem of incomplete utilization of nail polish.

[0004] In order to solve the above technical problems, the present utility model provides a nail polish bottle cap, comprising:

[0005] A cover body, the cover body defines a receiving groove with an opening at one end; a brush rod, the brush rod is inserted into the opening of the receiving groove; an elastic member, at least a portion of the elastic member is arranged in the receiving groove, along the depth direction of the receiving groove, one end of the elastic member is connected to the cover body, and the other end of the elastic member is connected to the brush rod, and when the elastic member is in a free state, the length of the brush rod extending out of the receiving groove is greater than or equal to the depth of the nail polish bottle.

[0006] As a preferred embodiment, the accommodating groove includes a connected guide groove section and an open groove section, and the end of the open groove section away from the guide groove section forms the opening of the accommodating groove; the brush rod includes a connected rod body portion and a connecting portion, and at least a portion of the connecting portion is located in the guide groove section and cooperates with the guide groove section.

[0007] As a preferred embodiment, the connecting portion has a flange, and the flange is located in the opening groove section; the cover body is formed with a first limiting surface at the connection between the guide groove section and the opening groove section, and in the depth direction of the accommodating groove, the first limiting surface is opposite to the flange.

[0008] As a preferred solution, an inner wall of the opening groove section is formed with an internal thread.

[0009] As a preferred solution, the connecting portion includes an outer cylinder and an inner cylinder connected to each other, the outer cylinder is guided and matched with the guide groove section, the inner cylinder is located inside the outer cylinder, and the end of the elastic member connected to the brush rod is sleeved on the inner cylinder.

[0010] As a preferred solution, the brush rod further comprises a flexible portion, and the flexible portion is connected to an end of the rod body away from the connecting portion.

[0011] As a preferred solution, the nail polish bottle cap further comprises a mounting seat, wherein the mounting seat is mounted in the accommodating groove, and the elastic member is connected to the cover body via the mounting seat.

[0012] As a preferred embodiment, the mounting seat has a mounting hole, and the mounting hole includes a countersunk hole section and a through hole section connected to each other. The mounting seat forms a second limiting surface at the connection between the countersunk hole section and the through hole section, and in the depth direction of the accommodating groove, the second limiting surface is opposite to the bottom wall of the accommodating groove; the elastic member passes through the through hole section, and the end of the elastic member connected to the cover body is clamped between the second limiting surface and the bottom wall of the accommodating groove.

[0013] As a preferred solution, the length of the elastic member in a free state is less than or equal to the depth of the accommodating groove.

[0014] The utility model also provides a nail polish bottle, comprising: a nail polish bottle body, wherein the nail polish bottle body has a bottle mouth; and a nail polish bottle cap as described in any of the above embodiments, wherein the cap body is arranged on the bottle mouth.

[0015] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0016] In the utility model, a receiving groove is provided in the cover body, and an elastic member is received in the receiving groove. Along the depth direction of the receiving groove, one end of the elastic member is connected to the cover body, and the other end of the elastic member is connected to the brush rod. When the nail polish bottle cap is screwed on the nail polish bottle body, the cover body is screwed down, the brush rod abuts against the nail polish bottle body, and the nail polish bottle body presses the brush rod, so that the brush rod moves in the receiving groove along the depth direction of the receiving groove. At the same time, after the brush rod is squeezed, the brush rod squeezes the elastic member, and the brush rod shrinks into the receiving groove of the cover body, and the length of the brush rod outside the cover body is shortened; when the nail polish bottle cap is unscrewed from the nail polish bottle, the elastic member is restored, and the brush rod extends outward from the receiving groove of the cover body under the action of the elastic force, and when the elastic member is completely restored and is in a free state, the length of the receiving groove deep in the brush rod is greater than the depth of the nail polish bottle, so that the nail polish brush can contact the nail polish at the bottom of the bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 : It is a schematic diagram of the three-dimensional structure of the nail polish bottle cap of the utility model;

[0018] Figure 2 :for Figure 1 Cross-section view of the nail polish bottle cap in the AA direction;

[0019] Figure 3: It is an exploded view of the nail polish bottle cap of the utility model;

[0020] Figure 4 : It is an exploded view of the nail polish bottle of the utility model.

[0021] The reference numerals of the drawings in the specification are as follows:

[0022] 1-cover body; 12-accommodating groove; 121-guide groove section; 122-opening groove section; 14-first limiting surface; 16-internal thread; 2-brush rod; 21-brush body; 22-connecting part; 24-flexible part; 26-flange; 27-inner tube; 28-outer tube; 3-elastic member; 32-first end; 34-second end; 36-middle part; 4-mounting seat; 41-mounting hole; 411-counterbore section; 412, through hole section; 42-first limiting surface; 100-nail polish bottle cap; 200-nail polish bottle body. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] refer to Figures 1 to 4 The utility model provides a nail polish bottle cap 100, comprising a cover body 1, a brush rod 2 and an elastic member 3. The cover body 1 defines a receiving groove 12 with an opening at one end; the brush rod 2 is arranged through the opening of the receiving groove 12; at least part of the elastic member 3 is arranged in the receiving groove 12, along the depth direction of the receiving groove 12, one end of the elastic member 3 is connected to the cover body 1, and the other end of the elastic member 3 is connected to the brush rod 2. When the elastic member 3 is in a free state, the length of the brush rod 2 extending out of the receiving groove 12 is greater than or equal to the depth of the nail polish bottle body 200.

[0025] The elastic member 3 is accommodated in the receiving groove 12 along the depth direction of the receiving groove 12, and the elastic member 3 has a first end 32 and a second end 34, the first end 32 is connected to the cover body 1, and the second end 34 is connected to the brush body 2; when the nail polish bottle cap 100 is matched with the nail polish bottle body 200, the nail polish bottle body 200 abuts against and presses the brush rod 2, so that the brush rod 2 moves relative to the cover body 1 in the receiving groove 12, and the brush rod 2 compresses the elastic member 3. Specifically, the cover body 1 has a side wall and a bottom wall, and the side wall and the bottom wall of the cover body 1 together define the receiving groove 12; one end of the brush body 2 is connected to the second end 34 of the elastic member 3; the first end 32 of the elastic member 3 is connected to the bottom wall of the cover body 1, and the second end 34 is connected to the brush rod 2, when the brush rod 2 moves relative to the cover body 1 along the depth direction of the receiving groove 12, the brush rod 2 presses the elastic member 3, and the elastic member 3 contracts. That is, when the nail polish bottle cap 100 is separated from the nail polish bottle body 200, the elastic member 3 is extended, and when the elastic member is completely restored to a free state, the length of the receiving groove in the deep part of the brush rod 2 is greater than the depth of the nail polish bottle body 200, so as to ensure that the brush rod 2 can contact the nail polish at the bottom of the nail polish bottle body 200 when using the nail polish, thereby improving the utilization rate of the nail polish and solving the problem of incomplete utilization of the nail polish. When the nail polish bottle cap 100 is matched with the nail polish bottle body 200, the brush rod 2 presses the elastic member 3, and the elastic member 3 contracts.

[0026] It should be understood that the first end 32 of the elastic member 3 can be fixed to the bottom wall of the cover body 1 by gluing or the like, or can be embedded in the bottom wall of the cover body 1, or can be fixed to the bottom wall of the cover body 1 by other fixing members such as bolts, pins, etc. The second end 34 of the elastic member 3 and the brush rod 2 can also be connected by gluing, welding, embedding, or other fixing members such as bolts, pins, etc.

[0027] In the utility model, the cover body 1 has a receiving groove 12, the brush rod 2 can be adjusted relative to the cover body 1 in the receiving groove 12 along the depth direction of the receiving groove 12, and the elastic member 3 is received in the receiving groove 12 along the depth direction of the receiving groove 12. The elastic member 3 has a first end 32 and a second end 34, the first end 32 is connected to the cover body 1, and the second end 34 is connected to the brush rod 2. When the nail polish bottle cap 100 and the nail polish bottle body 200 are screwed on the nail polish bottle body 200, the cover body 1 is screwed downward toward the nail polish bottle body 200, and the brush rod 2 abuts against the bottom of the nail polish bottle body 200. The nail polish bottle body 200 presses the brush rod 2, so that the brush rod 2 moves toward the bottom wall along the depth direction of the receiving groove 12 relative to the cover body 1. At the same time, after the brush rod 2 is squeezed, the brush rod 2 compresses the elastic member 3, and the brush rod 2 shrinks into the receiving groove 12 of the cover body 1, and the length of the brush rod 2 outside the cover body 1 is shortened; when the nail polish bottle cap 100 is unscrewed from the nail polish bottle body 200, the elastic member 3 is restored, and the brush rod 2 extends outward from the receiving groove 12 of the cover body 1 along the depth direction of the receiving groove 12 under the action of the elastic force. And when the elastic member 3 is fully restored to a free state, the length of the receiving groove 12 deep in the brush rod 2 is greater than the depth of the nail polish bottle 200, so that the bristles 24 can contact the nail polish at the bottom of the nail polish bottle 200, thereby improving the utilization rate of the nail polish in the nail polish bottle and preventing waste of nail polish.

[0028] As a preferred solution, the receiving groove 12 includes a connected guide groove section 121 and an open groove section 122, and the end of the open groove section 122 away from the guide groove section 121 forms an opening of the receiving groove 12; the brush rod 2 includes a connected rod body 21 and a connecting portion 22, and at least a portion of the connecting portion 22 is located in the guide groove section 121 and is guided and matched with the guide groove section 121. That is, the brush rod 2 has a rod body 21 and a connecting portion 22, and the connecting portion 22 is at least partially located in the guide groove section 121. When the nail polish bottle cap 100 is matched with the nail polish bottle body 200, the bottom of the nail polish bottle body 200 abuts against the rod body 21 of the brush rod 2, so that the brush rod 2 squeezes the elastic member 3, the elastic member 3 shrinks, and the connecting portion 22 of the brush rod 2 moves in the guide groove section 121 along the depth direction of the receiving groove 12 toward the direction away from the open groove section 122, that is, the brush rod 2 moves in the guide groove section 121 along the depth direction of the receiving groove 12 toward the bottom wall of the nail polish bottle cap 100. In the utility model, the connecting portion 22 is at least partially located in the guide groove section 121 and is arranged to cooperate with the guide groove section 121. While improving the stability of the elastic member 3, when the brush rod 2 moves relative to the cover body 1 along the depth direction of the receiving groove 12, it ensures that the connecting portion 22 of the brush rod 2 can be stably maintained in the receiving groove 12.

[0029] As a preferred solution, the brush rod 2 further comprises a flexible portion 24, which is connected to an end of the rod body 21 away from the connecting portion 22. It should be understood that the flexible portion 24 is bristles, which are used to contact with the nail polish to dip the nail polish.

[0030] As a preferred solution, the inner wall of the opening groove section 122 is formed with an internal thread 16, and when the nail polish bottle cap 100 is matched with the nail polish bottle body 200, the nail polish bottle cap 100 is fixed to the nail polish bottle body 200 through the internal thread. In other words, the receiving groove 12 of the cover body 1 also has an internal thread 16 that matches the nail polish bottle body 200, and the internal thread 16 is located in the opening groove section of the cover body, that is, the internal thread 16 of the cover body 1 is located on the outer side of the receiving groove 12 away from the bottom wall.

[0031] In an optional embodiment, the receiving groove 12 of the cover body 1 is not provided with an internal thread 16 that cooperates with the nail polish bottle body 200, and the nail polish bottle cap 100 is snap-fitted with the nail polish bottle body 200, such as a plurality of protrusions are provided at the opening of the cover body 1, and a plurality of grooves that cooperate with the plurality of protrusions are provided at the bottle mouth of the nail polish bottle body 200; or a plurality of protrusions are provided at the opening of the cover body 1, and a ring-shaped cone boss that cooperates with the plurality of protrusions is provided at the bottle mouth of the nail polish bottle body 200. It should be understood that in the present utility model, as long as the nail polish bottle cap 100 and the nail polish bottle body 200 can cooperate to ensure that the nail polish does not leak, the specific structural setting of the present utility model is not limited.

[0032] As a preferred solution, the connecting portion 22 has a flange 26, and the flange 26 is located in the opening groove section 122. When the nail polish bottle cap 100 is matched with the nail polish bottle body 200, the flange 26 is suitable for abutting against the bottle mouth of the nail polish bottle body 200. In other words, the diameter of the flange 26 is greater than the diameter of the brush rod 2. When the nail polish bottle cap 100 is matched with the nail polish bottle body 200, one side end surface of the flange 26 abuts against the bottle mouth of the nail polish bottle body 200. The nail polish bottle cap 100 is tightened toward the nail polish bottle body 200, and the brush rod 2 moves relative to the cover body 1 in the depth direction of the receiving groove 12 toward the bottom wall of the cover body 1 in the guide groove section 121, and the elastic member 3 is compressed at the same time, so that the length of the brush rod 2 outside the cover body 1 is shortened, so that the brush rod 2 and the flexible portion 24 connected to one end of the brush rod 2 will not be squeezed at the bottom of the bottle, thereby avoiding deformation of the flexible portion 24 and the brush rod 2. When the nail polish bottle cap 100 is unscrewed from the nail polish bottle body 200, the elastic member 3 is restored, and the brush rod 2 extends outward from the receiving groove 12 of the cover body 1 along the depth direction of the receiving groove 12 under the action of the elastic force. When the elastic member 3 is completely restored and is in a free state, the length of the brush rod 2 extending out of the receiving groove 12 is greater than or equal to the depth of the nail polish bottle body 200, so that the flexible portion 24 can contact the nail polish at the bottom of the nail polish bottle body 200, thereby improving the utilization rate of the nail polish in the nail polish bottle and preventing waste of nail polish.

[0033] The cover body 1 is formed with a first limiting surface 14 at the connection between the guide groove section 121 and the opening groove section 122, and the first limiting surface 14 is opposite to the flange 26 in the depth direction of the receiving groove 12. Specifically, when the nail polish bottle cap 100 is screwed toward the nail polish bottle, one side of the flange 26 abuts against the bottle mouth of the nail polish bottle body 200. When the nail polish bottle cap 100 is further screwed, the brush rod 2 moves toward the bottom wall of the cover body 1 in the guide groove section relative to the cover body 1 along the depth direction of the receiving groove 12, and at the same time, the elastic member 3 is compressed, so that the length of the brush rod 2 outside the cover body 1 is shortened, so that the brush rod 2 and the flexible portion 24 connected to one end of the brush rod 2 will not continue to move toward the bottom of the nail polish bottle body 200, ensuring that the brush rod 2 and the bristles will not be squeezed at the bottom of the bottle. When the brush rod 2 moves relative to the cover body 1 along the depth direction of the receiving groove 12 to the other side of the flange 26 abutting against the first limiting surface 14, the brush rod 2 stops moving relative to the cover body 1, and the nail polish bottle cap 100 is screwed onto the nail polish bottle body 200. When the nail polish bottle cap 100 is unscrewed from the nail polish bottle body 200, the flange 26 leaves the first limiting surface 14 when the brush rod 2 moves along the depth direction of the receiving groove 12 toward the opening direction of the cover body 1 under the elastic force of the elastic member 3. The brush rod 2 extends outward from the receiving groove 12 of the cover body 1 under the action of the elastic force. When the elastic member 3 is in a free state, the length of the brush rod 2 extending out of the receiving groove 12 is greater than or equal to the depth of the nail polish bottle body 200, so that the nail polish brush can contact the nail polish at the bottom of the bottle, thereby improving the utilization rate of the nail polish in the nail polish bottle and not causing waste of nail polish.

[0034] It should be understood that the guide groove section 121 can be formed by the entire cover body 1 on the inner side of the internal thread 16 near the bottom wall of the cover body 1 extending inwardly in a depth direction perpendicular to the receiving groove 12, or can be formed by a small area of ​​the cover body 1 on the inner side of the internal thread 16 extending inwardly in a depth direction perpendicular to the receiving groove 12. As long as the first limiting surface 14 can abut against the flange 26 when the nail polish bottle cap 100 and the nail polish bottle body 200 are tightened to limit the brush rod 2 from continuing to extend toward the bottom wall along the depth direction of the receiving groove 12, and the connecting portion 22 of the brush rod 2 can be stably moved in the guide groove section 121, the specific formation structure of the guide groove section 121 is not limited by the utility model.

[0035] As a preferred solution, the connecting portion 22 includes an outer cylinder 28 and an inner cylinder 27 connected to each other, the outer cylinder 28 is guided and matched with the guide groove section 121, the inner cylinder 27 is located inside the outer cylinder 28, and the end of the elastic member 3 connected to the brush rod 2 is sleeved on the inner cylinder 27. It should be understood that the elastic member 3 can be interference fit with the inner cylinder 27, can be embedded in the inner cylinder 27, or can be sleeved on the inner cylinder 27 by gluing. The provision of the inner cylinder 27 prevents the elastic member 3 from being deformed when squeezed, thereby extending the service life of the elastic member 3.

[0036] That is to say, the connecting portion 22 is provided with an outer cylinder 28 and an inner cylinder 27 on one end face of the flange 26 facing the guide groove section 121, the inner cylinder 27 is located in the outer cylinder 28, and an accommodating cavity is formed between the inner cylinder 27 and the inner wall of the outer cylinder 28, and the second end 34 of the elastic member 3 is sleeved on the inner cylinder 27 and located in the accommodating cavity. That is to say, one side of the flange 26 faces the opening side of the receiving groove 12 of the cover body 1, and the other side of the flange 26 faces the guide groove section 121. On the side of the flange 26 facing the guide groove section 121, an outer cylinder 28 and an inner cylinder 27 extending outward along the axial direction of the brush rod 2 are provided. The inner cylinder 27 is located in the outer cylinder 28, and the outer cylinder 28 is guided and matched with the guide groove section 121, and there is a receiving cavity between the inner cylinder 27 and the outer cylinder 28. The second end 34 of the elastic member 3 is fixed in the receiving cavity. By providing the outer cylinder 28 and the inner cylinder 27, the second end 34 of the elastic member 3 is fixed in the receiving cavity between the outer cylinder 28 and the inner cylinder 27, which greatly improves the stability of the elastic member 3. At the same time, when the brush rod 2 moves along the depth direction of the receiving groove 12, it is ensured that the connecting portion 22 of the brush rod 2 can be stably maintained in the receiving groove 12.

[0037] As a preferred solution, the nail polish bottle cap 100 also includes a mounting seat 4, which is mounted in the receiving groove 12, and the elastic member 3 is connected to the cover body 1 through the mounting seat 4. In other words, the mounting seat 4 is in the receiving groove 12 and connected to the cover body 1, and the elastic member 3 extends through the mounting seat 4 and is connected to the cover body 1. The elastic member 3 is sleeved in the mounting seat 4, which improves the stability of the elastic member 3 during compression or recovery and improves the life of the elastic member 3. It should be understood that the mounting seat 4 can be an end of the mounting seat 4 connected to the bottom wall of the cover body 1, or a side wall of the mounting seat 4 can be fixedly connected or interference fit with the side wall of the cover body 1. Preferably, the end of the mounting seat 4 abuts against the bottom wall of the cover body 1, and the side wall of the mounting seat 4 is interference fit with the side wall of the cover body 1, so as to ensure the stability of the mounting seat 4, thereby ensuring that the elastic member 3 can remain stable under the action of the mounting seat 4.

[0038] As a preferred solution, the mounting seat 4 has a mounting hole 41, and the mounting hole 41 includes a countersunk hole section 411 and a through hole section 412 connected to each other. The mounting seat 4 forms a second limiting surface 42 at the connection between the countersunk hole section 411 and the through hole section 412. In the depth direction of the receiving groove 12, the second limiting surface 42 is opposite to the bottom wall of the receiving groove 12. The elastic member 3 is passed through the through hole section 412, and the end of the elastic member 3 connected to the cover body 1 is clamped between the second limiting surface 42 and the bottom wall of the receiving groove 12. In other words, the mounting seat has a mounting hole 41, and the mounting hole 41 includes a through hole section 412 and a countersunk hole section 411 extending from the inner wall of the mounting hole 41 to the outer wall of the mounting seat 4 along the radial direction of the mounting seat 4 at one end of the mounting seat 4. The second limiting surface 42 is formed at the connection between the countersunk hole section 411 and the through hole section 412, wherein the inner diameter of the countersunk hole section 411 is larger than the inner diameter of the through hole section 412. The elastic member 3 further includes a middle portion 36 located between the first end 32 and the second end 34, the first end 32 is embedded in the counterbore section 411 and the elastic member 3 is limited by the second limiting surface 42, and the elastic member 3 is pressed against the second limiting surface 42, the middle portion 36 extends through the through hole section 412 of the mounting seat 4, and the second end 34 of the elastic member 3 is connected to the inner cylinder 27. It should be understood that the diameter of the second end 34 of the elastic member 3 can be greater than the diameter of the middle portion 36, and can also be the same as the diameter of the middle portion 36.

[0039] As a preferred solution, the length of the elastic member 3 in a free state is less than or equal to the depth of the receiving groove 12, so as to avoid the elastic member 3 from being damaged due to the deviation of the moving direction of the elastic member 3 when the brush body 2 squeezes the elastic member 3 to contract.

[0040] refer to Figure 4 The utility model also provides a nail polish bottle, comprising: a nail polish bottle body 200 and a nail polish bottle cap 100 in any of the above embodiments, the nail polish bottle body 200 has a bottle mouth; a cover body 1 of the nail polish bottle cap 100 is covered on the bottle mouth.

[0041] In the utility model, the cover body 1 has a receiving groove 12, and the receiving groove 12 has a first limiting surface 14 and an internal thread 16 arranged on the outer side of the first limiting surface 14 opening toward the cover body 1, that is, the internal thread 16 is located in the opening groove section 122; the brush rod 2 has a connecting portion 22, and the connecting portion 22 has a flange 26, and the other side of the flange 26 is provided with an outer cylinder 28 and an inner cylinder 27, and an accommodating cavity is provided between the outer cylinder 28 and the inner cylinder 27. The cover body 1 is also provided with a mounting seat 4, and the mounting seat 4 has a mounting hole 41, and the mounting hole 41 includes a countersunk section 411 and a through hole section 412, and the countersunk section 411 is formed by the inner wall of the mounting hole 41 extending toward the outer wall of the mounting seat 4 along the radial direction of the mounting seat 4, and a second limiting surface 42 is formed at the connection between the through hole section 412 and the countersunk section 411. The elastic member 3 also includes a first end 32, a second end 34, and an intermediate portion 36 located between the first end 32 and the second end 34. The first end 32 of the elastic member 3 is located in the counterbore section 411 and abuts against the second limiting surface 42 of the mounting seat 4. The middle portion 36 of the elastic member 3 passes through the through hole section 412 of the mounting seat 4, and the second end 34 of the elastic member 3 is connected to the inner cylinder 27 in the accommodating cavity between the inner cylinder 27 and the outer cylinder 28. The first end 32 of the elastic member 3 is positioned by the second limiting surface 42 of the mounting seat 4, and the second end 34 of the elastic member 3 is positioned by the outer cylinder 28 and the inner cylinder 27, so as to ensure that the elastic member 3 does not deform during the deformation process and improve the service life of the elastic member 3.

[0042] When the nail polish bottle cap 100 is matched with the nail polish bottle body 200, one side of the flange 26 abuts against the bottle mouth of the nail polish bottle body 200. When the nail polish bottle cap 100 is tightened toward the nail polish bottle body 200, the brush rod 2 moves relative to the cover body 1 along the depth direction of the receiving groove 12 toward the guide groove section 121 of the cover body 1, and at the same time compresses the elastic member 3, so that the length of the brush rod 2 outside the cover body 1 is shortened, so that the brush rod 2 and the flexible member 24 connected to one end of the brush rod 2 will not continue to move toward the bottom of the nail polish bottle body 200, ensuring that the brush rod 2 and the flexible member 24 will not be squeezed at the bottom of the bottle; when the brush rod 2 moves relative to the cover body 1 along the depth direction of the receiving groove 12 until the other side of the flange 26 abuts against the first limiting surface 14, the brush rod 2 stops moving, and the nail polish bottle cap 100 is tightened on the nail polish bottle body 200. When the nail polish bottle cap 100 is unscrewed from the nail polish bottle body 200, the brush rod 2 moves along the depth direction of the receiving groove 12 toward the opening direction of the cover body 1 under the elastic force of the elastic member 3, and the flange 26 leaves the first limiting surface 14. The brush rod 2 extends outward from the receiving groove 12 of the cover body 1 under the action of the elastic force. When the elastic member 3 is completely restored to a free state, the length of the brush rod 2 extending out of the receiving groove 12 is greater than or equal to the depth of the nail polish bottle body 200, so that the nail polish brush can contact the nail polish at the bottom of the bottle, thereby improving the utilization rate of the nail polish in the nail polish bottle and not causing waste of nail polish.

[0043] The specific embodiments described above further describe the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only a specific embodiment of the utility model and is not intended to limit the protection scope of the utility model. It is particularly pointed out that for those skilled in the art, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A nail polish bottle cap, characterized in that: include: A cover body, wherein the cover body defines a receiving groove with an open end; A brush rod, the brush rod being inserted through the opening of the receiving groove; An elastic member, at least part of which is disposed in the receiving groove, and along the depth direction of the receiving groove, one end of the elastic member is connected to the cover body, and the other end of the elastic member is connected to the brush rod, and when the elastic member is in a free state, the length of the brush rod extending out of the receiving groove is greater than or equal to the depth of the nail polish bottle.

2. The nail polish bottle cap according to claim 1, characterized in that: The receiving groove comprises a guide groove section and an opening groove section connected to each other, and one end of the opening groove section away from the guide groove section forms an opening of the receiving groove; The brush rod comprises a rod body portion and a connecting portion connected to each other, and at least a portion of the connecting portion is located in the guide groove section and is guided and matched with the guide groove section.

3. The nail polish bottle cap as claimed in claim 2, characterized in that: The connecting portion has a flange, and the flange is located in the opening slot section; The cover body is formed with a first limiting surface at the connection between the guide groove section and the opening groove section. In the depth direction of the accommodating groove, the first limiting surface is opposite to the flange.

4. The nail polish bottle cap as claimed in claim 2, characterized in that: An inner wall of the opening groove section is formed with an internal thread.

5. The nail polish bottle cap as claimed in claim 2, characterized in that: The connecting portion comprises an outer cylinder and an inner cylinder connected to each other, the outer cylinder is guided and matched with the guide groove section, the inner cylinder is located inside the outer cylinder, and the end of the elastic member connected to the brush rod is sleeved on the inner cylinder.

6. The nail polish bottle cap as claimed in claim 2, characterized in that: The brush rod further comprises a flexible portion, and the flexible portion is connected to an end of the rod body away from the connecting portion.

7. The nail polish bottle cap according to claim 1, characterized in that: It also includes a mounting seat, which is installed in the accommodating groove, and the elastic member is connected to the cover body through the mounting seat.

8. The nail polish bottle cap according to claim 7, characterized in that: The mounting seat has a mounting hole, the mounting hole includes a countersunk hole section and a through hole section connected to each other, the mounting seat is formed with a second limiting surface at the connection between the countersunk hole section and the through hole section, and in the depth direction of the receiving groove, the second limiting surface is opposite to the bottom wall of the receiving groove; The elastic member passes through the through hole section, and the end portion of the elastic member connected to the cover body is clamped between the second limiting surface and the bottom wall of the accommodating groove.

9. The nail polish bottle cap according to any one of claims 1 to 8, characterized in that: The length of the elastic member in a free state is less than or equal to the depth of the accommodating groove.

10. A nail polish bottle, characterized in that: include: A nail polish bottle body, wherein the nail polish bottle body has a bottle mouth; The nail polish bottle cap according to any one of claims 1 to 9, wherein the cap body is disposed on the bottle mouth.

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