Leak-proof perfume bottle cap

Abstract

The utility model discloses a bottle cap field's one kind prevents the leakage perfume bottle cap, is composed of the set, piston piece and rotating piece, adopts triple coordinated design to realize efficient sealing. The set is hollow structure, and one end inside is equipped with locking thread, can be with bottle mouth outside thread screw joint fixed, forms basic connection. The piston piece is placed in the set inside, and the convex seal part of its one end can be closely clamped into the bottle mouth inside, and the preliminary sealing is completed through the adhesion with bottle mouth inner wall, and the leakage of perfume is blocked from the inside. The rotating piece is coaxially assembled in the set other side inside, and is moved axially with the set through the thread cooperation. The end face of rotating piece close to piston piece is equipped with elastic sealing layer, and when rotating the rotating piece and makes it move to piston piece, the elastic sealing layer extrudes piston piece end face, both fixes piston piece position and prevents loosening, and forms secondary sealing. The double sealing structure coordinated action, significantly improves the sealing property, reduces the volatilization and leakage.

Description

Technical Field

[0001] This utility model relates to the field of bottle cap technology, specifically a leak-proof perfume bottle cap. Background Technology

[0002] The perfume bottle cap is a crucial component of a perfume bottle, its primary function being to seal the bottle opening and prevent the perfume inside from directly contacting the external environment. Besides its basic function of shielding against foreign objects falling into the bottle, a high-quality cap also needs to create a relatively airtight space to slow down the loss of perfume components due to evaporation, thereby preserving the original fragrance and concentration. Currently, perfume bottle cap designs not only need to meet functional requirements but also often complement the overall shape of the perfume bottle, becoming part of enhancing the product's aesthetics.

[0003] However, existing perfume bottle caps have significant defects in terms of sealing. Most caps rely solely on a single thread or snap-fit ​​structure to connect to the bottle opening, making it difficult to achieve a complete seal. When the perfume bottle is shaken, tilted, or affected by temperature changes, perfume can easily leak from the gap between the cap and the bottle opening, causing waste and contamination. Utility Model Content

[0004] In order to overcome the shortcomings of existing technical solutions, this utility model provides a leak-proof perfume bottle cap, which can effectively solve the technical problem of poor sealing performance of current perfume bottle caps.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A leak-proof perfume bottle cap includes a kit, a piston, and a rotating component. The kit has a hollow structure, and one end of the kit has a locking thread for screwing and fixing it to the outside of the bottle opening. The piston is located inside the kit, and one end of the piston has a protrusion for tightly engaging with the inside of the bottle opening to achieve a seal. The rotating component is coaxially disposed on the other side of the kit, and the rotating component and the kit are axially movable through a threaded engagement. An elastic sealing layer is provided on the end face of the rotating component near the piston. When the rotating component rotates towards the piston, the elastic sealing layer contacts and presses against the end face of the piston to fix the position of the piston.

[0007] Furthermore, the kit has a radially protruding protrusion at one end near the rotating component, and the cross-section of the protrusion has a polygonal structure.

[0008] Furthermore, the sealing part is coaxially arranged with the piston, and the end of the sealing part away from the piston is provided with a chamfered surface in the circumferential direction, so that the outer diameter of the protrusion gradually decreases towards the protruding end.

[0009] Furthermore, the kit has an internal thread on the inner side of one end near the rotating part, and an external thread on the outer side of the rotating part that mates with the internal thread.

[0010] Furthermore, the end face of the rotating component away from the elastic sealing layer is provided with a protruding twisting part, and the outer side of the twisting part is provided with an anti-slip surface.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] The perfume bottle cap provided by this utility model not only achieves a preliminary seal on the perfume bottle opening through the sealing part on the piston, which can effectively prevent perfume from leaking from the inside of the bottle opening, but also achieves fixation and prevents loosening by using the rotational cooperation of the rotating part and the kit and the elastic sealing layer to squeeze one end of the piston. The double sealing effect effectively improves the sealing performance of the perfume bottle, reduces the evaporation and leakage of perfume, and extends the use time of perfume. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0014] Figure 2 This is an exploded view of the overall structure of an embodiment of the present utility model;

[0015] Figure 3 This is a schematic diagram showing the connection between the kit and the piston component in an embodiment of this utility model;

[0016] Numbering on the map:

[0017] 1-Kit, 2-Piston component, 3-Rotating component;

[0018] 101-Locking thread, 102-Protrusion, 103-Internal thread;

[0019] 201 - Sealing part; 202 - Chamfered surface;

[0020] 301 - Elastic sealing layer, 302 - External thread, 303 - Tightening part, 304 - Anti-slip surface. Detailed Implementation

[0021] 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.

[0022] like Figure 1-3As shown, this utility model provides a leak-proof perfume bottle cap, aiming to solve the problem of insufficient sealing of traditional perfume bottle caps, which leads to easy evaporation and leakage of perfume. The leak-proof perfume bottle cap includes a kit 1, a piston 2, and a rotating part 3. Through the coordinated cooperation of multiple parts, a multi-layer sealing structure is formed, which significantly improves the sealing performance of the perfume bottle.

[0023] The kit 1 has a hollow structure and serves as the main support component for the entire bottle cap. One end of the inner side is provided with a locking thread 101, which can engage with the thread on the outside of the perfume bottle opening to achieve a screw-on fixation between the kit 1 and the perfume bottle. This is the basis for the connection between the bottle cap and the perfume bottle.

[0024] Near one end of the rotating component 3, the kit 1 has a radially protruding protrusion 102. The cross-section of the protrusion 102 is polygonal, which makes it easier for the user to hold and reduces the effort required to tighten or loosen the kit 1, preventing slippage. At the same time, the inner side of the kit 1 near the rotating component 3 is also provided with an internal thread 103 for engaging with the rotating component 3.

[0025] Piston 2 is located inside kit 1 and is one of the key components for achieving a seal. One end of it is provided with a sealing part 201, which is coaxially arranged with piston 2. The sealing part 201 is a protruding structure that can be tightly fitted into the inside of the perfume bottle opening. By tightly fitting with the inner wall of the bottle opening, it forms the first line of defense for sealing and effectively prevents perfume from leaking from the inside of the bottle opening.

[0026] In order to facilitate the smooth insertion of the sealing part 201 into the bottle mouth, the end of the sealing part 201 away from the piston part 2 is provided with a chamfered surface 202 in the circumferential direction, so that the outer diameter of the sealing part 201 gradually decreases towards the convex end, which plays a guiding role and reduces the difficulty of installation.

[0027] The rotating component 3 is coaxially disposed on the inner side of the kit 1 away from the locking thread 101, and moves axially with the kit 1 through a threaded engagement. Specifically, the outer side of the rotating component 3 is provided with an external thread 302, which engages with the internal thread 103 on the inner side of the kit 1. When the rotating component 3 is rotated, under the action of the thread, the rotating component 3 can move closer to or away from the piston component 2 along the axial direction of the kit 1. An elastic sealing layer 301 is provided on the end face of the rotating component 3 near the piston component 2. The elastic sealing layer 301 can be made of a material with good elasticity and sealing properties, such as rubber. When the rotating component 3 rotates towards the piston component 2, the elastic sealing layer 301 will contact and gradually compress the end face of the piston component 2. On the one hand, the pressure generated by the compression firmly fixes the piston component 2 in its current position, preventing it from loosening; on the other hand, the tight contact between the elastic sealing layer 301 and the end face of the piston component 2 forms a second sealing defense, further enhancing the overall sealing performance.

[0028] In addition, the end face of the rotating part 3 away from the elastic sealing layer 301 is provided with a protruding twisting part 303, and the outer side of the twisting part 303 is provided with an anti-slip surface 304. The anti-slip surface 304 can be evenly distributed stripes or protrusions, which makes it convenient for users to rotate the rotating part 3 and makes the operation more convenient.

[0029] When using this leak-proof perfume bottle cap, first, seal the piston part 2 to the bottle mouth, and then use the sealing part 201 to snap into the bottle mouth to achieve a preliminary seal. Then, holding the protrusion 102 of the kit 1, screw the kit 1 onto the bottle mouth of the perfume bottle through the locking thread 101 until it is tightened.

[0030] Next, grasp the turning part 303 of the rotating component 3 and rotate the rotating component 3 towards the piston component 2. Since the rotating component 3 and the kit 1 are connected by threads, the rotating component 3 will gradually approach the piston component 2 during rotation until the elastic sealing layer 301 on the rotating component 3 contacts and is compressed against the end face of the piston component 2. At this time, the piston component 2 is firmly fixed, and the elastic sealing layer 301 is tightly fitted with the end face of the piston component 2, forming a double seal, thus completing the sealing installation of the entire bottle cap.

[0031] When you need to use the perfume, first rotate the rotating part 3 in the opposite direction to move it away from the piston part 2, thus releasing the pressure on the piston part 2. Then, hold the protrusion 102 of the kit 1 and rotate the kit 1 in the opposite direction to remove the kit 1 from the perfume bottle opening. Then, open the piston part 2 to use the perfume. After use, reinstall the bottle cap according to the installation steps.

[0032] Compared with traditional technologies, the perfume bottle cap provided by this technology not only achieves a preliminary seal on the perfume bottle opening through the sealing part 201 on the piston part 2, which can effectively prevent perfume from leaking from the inside of the bottle opening, but also achieves fixation and prevents loosening by using the rotational cooperation between the rotating part 3 and the kit 1 and the elastic sealing layer 301 to press against one end of the piston part 2. The double sealing effect effectively improves the sealing performance of the perfume bottle, reduces the evaporation and leakage of perfume, and extends the use time of perfume.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A leak-proof perfume bottle cap, comprising a kit, a piston, and a rotating component, characterized in that: The kit has a hollow structure. One end of the kit has a locking thread for screwing and fixing to the outside of the bottle mouth. The piston is located inside the kit, and one end of the piston has a protrusion for tightly engaging with the inside of the bottle mouth to achieve a seal. The rotating part is coaxially arranged on the other side of the kit, and the rotating part can move axially with the kit through a threaded engagement. The end face of the rotating part near the piston is provided with an elastic sealing layer. When the rotating part rotates towards the piston, the elastic sealing layer contacts and squeezes the end face of the piston to fix the position of the piston.

2. The leak-proof perfume bottle cap according to claim 1, characterized in that: The kit has a radially protruding protrusion at one end near the rotating component, and the cross-section of the protrusion has a polygonal structure.

3. The leak-proof perfume bottle cap according to claim 2, characterized in that: The sealing part is coaxially arranged with the piston, and the end of the sealing part away from the piston is provided with a chamfered surface in the circumferential direction, so that the outer diameter of the protrusion gradually decreases towards the protruding end.

4. A leak-proof perfume bottle cap according to claim 1, characterized in that: The kit has an internal thread on the inner side of the end near the rotating part, and an external thread on the outer side of the rotating part that mates with the internal thread.

5. A leak-proof perfume bottle cap according to any one of claims 1-4, characterized in that: The end face of the rotating component away from the elastic sealing layer is provided with a protruding twisting part, and the outer side of the twisting part is provided with an anti-slip surface.

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