Bottle cap and vacuum spray bottle
By designing a threaded connection between the cap and the outer bottle and a retaining ring to protect the inner bottle, the problem of easy damage to vacuum spray bottles is solved, ensuring the safety and stability of the inner bottle and preventing liquid waste.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANGZHOU SANJING ART CRAFT PLASTIC
- Filing Date
- 2025-04-03
- Publication Date
- 2026-05-05
AI Technical Summary
The body of a standard vacuum spray bottle is easily damaged by external factors, and the connection between the bottle body and the cap may deform and become damaged.
A bottle cap structure was designed, including a cap body with internal threads, a connecting tube, and a press pump. The inner bottle and the outer bottle are connected by a threaded seal. The outer bottle is protected by a retaining ring. An air passage is provided at the connection between the outer bottle and the cap body. A rubber sleeve provides friction and cushioning to prevent damage to the inner bottle.
It effectively protects the inner bottle from external damage, prevents breakage at the connection between the inner bottle and the cap, avoids liquid leakage, and makes the outer bottle less prone to breakage, thus improving stability and safety in use.
Smart Images
Figure CN224194991U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of aerosol bottles, and in particular to a bottle cap and a vacuum aerosol bottle. Background Technology
[0002] Vacuum spray bottles have the advantages of uniform spraying, minimal contamination of the liquid inside the bottle, and long shelf life, and are widely used for storing liquid cosmetics.
[0003] A standard vacuum spray bottle consists of a bottle body, a cap, and a pump. To use it, simply press the pump to spray out a mist of water.
[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: conventional vacuum spray bottles are directly exposed to the outside world, making them susceptible to damage. Furthermore, the connection between the bottle body and the cap may deform due to external pressure, leading to damage to the vacuum bottle. Utility Model Content
[0005] To address the common problem that single-bodied vacuum spray bottles are easily damaged due to external factors, this application provides a bottle cap and a vacuum spray bottle.
[0006] Firstly, the bottle cap provided in this application adopts the following technical solution:
[0007] A bottle cap, comprising:
[0008] The cover body has internal threads;
[0009] A connecting pipe, located inside the cover body, is provided with internal threads;
[0010] A press pump is located on the cover, with the feed end inside the connecting pipe, used to draw the liquid from the inner bottle by vacuum extraction and then spray it out.
[0011] The inner bottle, used to hold liquids and work with a press pump to achieve vacuum spraying, is threadedly sealed to the connecting pipe, while the outer bottle, used to protect the inner bottle, is threadedly connected to the cap.
[0012] With the above technical solution, the inner bottle is less likely to be damaged by external forces during use because the outer bottle protects the inner bottle.
[0013] Optionally, a retaining ring is coaxially provided inside the cap body, and the connecting pipe is located in the retaining ring. When the cap body is threadedly connected to the outer bottle, the bottle mouth of the outer bottle is located between the retaining ring and the inner wall of the cap body.
[0014] With the above technical solution, when the outer bottle breaks due to external force, the connection between the inner bottle and the cap will be protected by a retaining ring, so that the connection between the inner bottle and the cap is not easily damaged when the outer bottle breaks, which would lead to leakage of the liquid in the inner bottle and waste.
[0015] Secondly, this application provides a vacuum spray bottle with the following technical solution:
[0016] A vacuum spray bottle, comprising:
[0017] The inner bottle, used to hold liquid, has a bottleneck and is connected to the connecting pipe by a sealing thread on the bottleneck. A piston is slidably installed inside to cooperate with a press pump to achieve a vacuum inside the bottle. An air inlet is provided at the bottom.
[0018] The outer bottle is fitted onto the inner bottle, and the bottle mouth is threadedly connected to the cap. An air passage for air to enter is provided at the connection between the outer bottle and the cap.
[0019] Optionally, the outer diameter of the inner bottle is the same as the outer diameter of the retaining ring. When the inner bottle is screwed onto the cap, there is a gap between the end face of the inner bottle that connects to the bottle neck and the end face of the retaining ring.
[0020] With the above technical solution, when the connection between the inner bottle and the cap is bent due to the external force that causes the outer bottle to break, the end face of the inner bottle will press against the retaining ring when bent to a certain angle, so that the inner bottle is not easily bent too much and breaks at the bottle mouth. At the same time, it can also undergo a certain degree of bending deformation to absorb the impact of the external force, thus making the bottle body less likely to break.
[0021] Optionally, the thickness of the bottom of the outer bottle is greater than the thickness of the side wall of the outer bottle.
[0022] Optionally, a rubber sleeve is provided on the upper side wall of the outer bottle.
[0023] Optionally, one end of the rubber sleeve covers the connection surface between the outer bottle body and the bottle neck. When the cap is tightened, the open end of the cap abuts against the rubber sleeve. The rubber sleeve has several anti-slip grooves that extend to the part where the rubber sleeve abuts against the cap. A gap for air to enter is provided between the connecting threads of the cap and the outer bottle.
[0024] Optionally, the thickness of the rubber sleeve at the end near the neck of the outer bottle is greater than the thickness of the rubber sleeve at the end near the bottom of the outer bottle.
[0025] In summary, this application protects the inner bottle with an outer bottle, making the inner bottle containing liquid less susceptible to damage. At the same time, when the outer bottle is subjected to external force, the connection between the inner bottle and the cap will deform to cushion the force on the inner bottle. Meanwhile, the end face of the inner bottle bent to a limited angle will press against the retaining ring, causing the inner bottle to stop deforming further. This prevents the inner bottle from breaking due to excessive deformation and causing internal liquid leakage, thus avoiding liquid waste. Attached Figure Description
[0026] Figure 1 This is a three-dimensional structural diagram of the bottle cap and vacuum spray bottle combined according to this application.
[0027] Figure 2 This is a three-dimensional structural diagram of the bottle cap of this application.
[0028] Figure 3 This is a schematic diagram of the explosion of the bottle cap and the vacuum spray bottle of this application.
[0029] Figure 4 This is a cross-sectional view of the bottle cap and vacuum spray bottle of this application after they are combined.
[0030] Figure 5 yes Figure 4 Enlarged schematic diagram of part A in the middle.
[0031] Figure 6 yes Figure 4 Enlarged schematic diagram of section B.
[0032] Figure 7 yes Figure 4 Enlarged schematic diagram of section C.
[0033] Those skilled in the art will understand that the elements in the accompanying drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be enlarged relative to other elements to aid in understanding the embodiments of the invention.
[0034] Reference numerals: 1. Cap; 11. Connecting pipe; 12. Press pump; 13. Retaining ring; 2. Inner bottle; 21. Piston; 22. Air inlet; 3. Outer bottle; 4. Rubber sleeve; 41. Anti-slip groove; 5. Air passage. Implementation
[0035] The following is in conjunction with the appendix Figure 1 —7 provides further details regarding this application.
[0036] Firstly, this application discloses a bottle cap.
[0037] Reference Figure 1 and Figure 2It includes a cylindrical cover 1, a connecting pipe 11 integrally and coaxially disposed inside the cover 1, and a press pump 12 coaxially fixedly installed on the cover 1, with the liquid inlet end of the press pump 12 coaxially passing through the connecting pipe 11.
[0038] Secondly, embodiments of this application disclose a vacuum spray bottle.
[0039] Reference Figure 1 and Figure 3 It includes a cylindrical inner bottle 2 and a cylindrical outer bottle 3 fitted onto the inner bottle 2.
[0040] Reference Figure 1 , Figure 2 and Figure 3 Both the outer bottle 3 and the inner bottle 2 are designed with a bottleneck. The outer bottle 3 is connected to the cap 1 by a bottleneck thread, and the inner bottle 2 is connected to the connecting pipe 11 by a bottleneck thread.
[0041] Reference Figure 4 and Figure 7 After the inner bottle 2 is tightened, a seal is formed between it and the connecting pipe 11. A piston 21 is slidably installed inside the inner bottle 2. An air inlet 22 is opened through the bottom wall of the inner bottle 2. The liquid inlet end of the press pump 12 is located inside the inner bottle 2. By pressing the press pump 12, the liquid in the inner bottle 2 is drawn out and then sprayed out.
[0042] Reference Figure 4 and Figure 7 As the liquid inside the inner bottle 2 is continuously ejected, the pressure inside the inner bottle 2 decreases. Under the action of the external atmospheric pressure, the piston 21 slides towards the bottle opening of the inner bottle 2, so that the liquid inside the inner bottle 2 is always full. The liquid inlet section of the press pump 12 is always immersed in the liquid inside the inner bottle 2, and the press pump 12 can achieve uninterrupted liquid injection.
[0043] The cap 1 is made of plastic injection molding, and the inner bottle 2 is also made of plastic injection molding. When the outer bottle 3 is broken by external force, if the inner bottle 2 is also subjected to impact force, the neck of the inner bottle 2 will deform to release the impact force on the inner bottle 2, so that the inner bottle 2 is not easily damaged by impact force and leaks.
[0044] Reference Figure 4 and Figure 6 A gap is provided between the end face of the inner bottle 2 where the bottle body is connected to the neck and the end face of the retaining ring 13. When the neck of the inner bottle 2 deforms and bends to the upper limit, the end face of the inner bottle 2 abuts against the end face of the retaining ring 13, preventing the neck of the inner bottle 2 from continuing to bend and deform, thereby preventing the neck of the inner bottle 2 from being excessively bent and breaking.
[0045] Furthermore, the retaining ring 13 strengthens the connection tube 11 of the cap 1, making the cap 1 less prone to deformation at the connection tube 11, and making it less likely to leak at the connection between the connection tube 11 and the inner bottle 2 when subjected to external force interference.
[0046] Reference Figure 2 , Figure 3 and Figure 4 When the cap 1 is connected to the outer bottle 3, the retaining ring 13 is located between the connecting pipe 11 and the neck of the outer bottle 3. Therefore, if the outer bottle 3 breaks, it can further protect the connection between the inner bottle 2 and the cap 1. The outer diameter of the retaining ring 13 is the same as the outer diameter of the inner bottle 2. The inner bottle 2 guides the cap 1, so that when the cap 1 is loosened and the neck of the outer bottle 3 is pulled out from between the cap 1 and the retaining ring 13, the threads at the neck of the outer bottle 3 and the internal threads of the cap 1 are less likely to hook into each other, making the removal of the outer bottle 3 smoother.
[0047] Reference Figure 4 The outer bottle 3 is made of glass, giving it a more refined and high-end appearance. The thickness of the bottom of the outer bottle 3 is greater than the thickness of its side walls, making the bottom of the outer bottle 3 heavier and more stable when placed.
[0048] Reference Figure 1 and Figure 2 A rubber sleeve 4 is fixedly fitted on one end of the outer bottle 3. The rubber sleeve 4 covers the end face of the outer bottle 3 where it is connected to the bottle neck. Several anti-slip grooves 41 are axially spaced on the outer wall of the rubber sleeve 4. The anti-slip grooves 41 extend to the part of the rubber sleeve 4 located at the end face of the outer bottle 3.
[0049] When it is necessary to unscrew the cover 1, grip the rubber sleeve 4. The rubber sleeve 4 and the anti-slip groove 41 provide greater friction, making it easier to rotate the cover 1.
[0050] Reference Figure 1 , Figure 4 and Figure 5 When the cap 1 is tightened onto the outer bottle 3, the end face of the open end of the cap 1 fits tightly against the rubber sleeve 4, and there is a gap between the threads of the outer bottle 3 and the cap 1, and a gap between the neck end face of the outer bottle 3 and the inner bottom wall of the cap 1. Outside air enters into the cap 1 along the anti-slip groove 41, and then enters into the outer bottle 3 along the gap between the threads of the cap 1 and the outer bottle 3. An air passage 5 is formed through the anti-slip groove 41 and the thread gap at the connection between the outer bottle 3 and the cap 1, so that the inside of the outer bottle 3 is connected to the outside, thereby making the air pressure inside the outer bottle 3 equal to that outside.
[0051] Because there is a gap between the thread of the cap 1 and the thread of the outer bottle 3, the cap 1 is easy to loosen after being tightened. However, the elasticity of the rubber sleeve 4 and the friction of the rubber sleeve 4 on the cap 1 prevent the cap 1 from loosening, so that the cap 1 is not easy to loosen after being tightened.
[0052] Reference Figure 1 The thickness of the rubber sleeve 4 near the neck of the outer bottle 3 is greater than the thickness of the rubber sleeve 4 near the bottom of the outer bottle 3. The rubber sleeve 4 absorbs the reaction force acting on the outer bottle 3 when it is pushed over, making the outer bottle 3 less likely to break. At the same time, after the outer bottle 3 falls to the ground, because the outer diameter of the rubber sleeve 4 is greater than the outer diameter of the bottom of the outer bottle 3, the outer bottle 3 will rotate around its bottom, so that the outer bottle 3 will not roll off the table and break after being placed on the table and tilted.
[0053] Furthermore, when a person's hand touches the outer bottle 3 while waving, the rubber sleeve 4 will cushion the hand and the outer bottle 3, making it less likely for the hand to be injured.
[0054] The above 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 in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A bottle cap, characterized in that, include: The cover (1) is provided with internal threads; A connecting pipe (11) is provided inside the cover (1) and has an internal thread; A press pump (12) is provided in the cover (1), with the feed end located inside the connecting pipe (11), for drawing out the liquid in the inner bottle (2) by vacuum extraction and then spraying it out; The inner bottle (2), which is used to hold liquid and work with the press pump (12) to achieve vacuum spraying, is threadedly sealed to the connecting pipe (11), and the outer bottle (3), which is used to protect the inner bottle (2), is threadedly connected to the cap (1).
2. A bottle cap according to claim 1, characterized in that: The cover (1) is coaxially provided with a retaining ring (13), and the connecting pipe (11) is located in the retaining ring (13). When the cover (1) is threadedly connected to the outer bottle (3), the bottle mouth of the outer bottle (3) is located between the retaining ring (13) and the inner wall of the cover (1).
3. A vacuum spray bottle, characterized in that, include: The inner bottle (2) is used to hold liquid. It has a bottleneck and is connected to the connecting pipe (11) in claim 1 by a bottleneck sealing thread. A piston (21) is slidably installed inside to cooperate with the press pump (12) in claim 1 to achieve a vacuum inside the bottle. An air inlet (22) is opened at the bottom. The outer bottle (3) is fitted onto the inner bottle (2), and the bottle mouth is threadedly connected to the cap (1) as described in claim 2. An air passage (5) for air to enter is provided at the connection between the bottle and the cap (1).
4. A vacuum spray bottle according to claim 3, characterized in that: The outer diameter of the inner bottle (2) is the same as the outer diameter of the retaining ring (13) of the cap (1) in claim 2. When the inner bottle (2) is screwed onto the cap (1), there is a gap between the end face of the inner bottle (2) connected to the bottle neck and the end face of the retaining ring (13).
5. A vacuum spray bottle according to claim 3, characterized in that: The thickness of the bottom of the outer bottle (3) is greater than the thickness of the side wall of the outer bottle (3).
6. A vacuum spray bottle according to claim 3, characterized in that: The upper side wall of the outer bottle (3) is fitted with a rubber sleeve (4).
7. A vacuum spray bottle according to claim 6, characterized in that: One end of the rubber sleeve (4) covers the connection surface between the bottle body and the neck of the outer bottle (3). When the cap (1) is tightened, the open end of the cap (1) abuts against the rubber sleeve (4). The rubber sleeve (4) is provided with several anti-slip grooves (41). The anti-slip grooves (41) extend to the part where the rubber sleeve (4) abuts against the cap (1). There is a gap between the connecting threads of the cap (1) and the outer bottle (3) for air to enter.
8. A vacuum spray bottle according to claim 6, characterized in that: The thickness of the rubber sleeve (4) at the end near the bottleneck of the outer bottle (3) is greater than that at the end near the bottom of the outer bottle (3).