Pressing type emulsion bottle

Abstract

The utility model discloses a pressing type lotion bottle, and belongs to the technical field of articles for daily use, the pressing type lotion bottle comprises a bottle body and a bottle cap, the top surface of the bottle body is open, the inner wall surface of the bottle body is of a straight cylindrical structure, the bottle cap comprises a base, a lotion pump and a gland, the gland is movably mounted on the base and is connected with the lotion pump, and the bottom surface of the bottle body is open. The gland is stressed to move downwards relative to the base to drive the emulsion pump to work, a sealing ring is installed on the peripheral face of the base, and the sealing ring acts on the inner wall face of the bottle body. A press-fitting type connecting structure is designed, so that a user can conveniently open or close the emulsion bottle; and the bottle body adopts a non-closing structure, so that a user can conveniently fill the bottle.

Description

Technical Field

[0001] This application relates to the field of consumer goods technology, and in particular to a press-type lotion bottle. Background Technology

[0002] Everyday household products, such as shampoo, hand soap, and shower gel, typically use pump-type lotion bottles. A pump-type lotion bottle usually consists of a bottle body, a lotion pump, and a straw. The bottle body has a receiving cavity, and the top of the bottle body has an opening that communicates with the receiving cavity. The lotion pump is mounted on the bottle opening, with an inlet at the bottom and an outlet at the top. The straw is located in the receiving cavity, and its upper end connects to the inlet at the bottom of the lotion pump. To use, simply press the pump head to dispense the lotion; it's convenient and easy to use.

[0003] Related prior art, such as Chinese patent application “A pollution-proof and drip-proof press-type emulsion pump head”, publication number: CN112849727A, discloses: including a bottle cap, a storage cylinder and a pump head, wherein a pressure cap is installed on the bottle cap, a connecting sleeve is fixedly installed on the upper end of the storage cylinder and the connecting sleeve is connected to the pressure cap, and a piston rod is provided inside the storage cylinder. For example, the Chinese patent application "A Press-Type Emulsion Dispensing Bottle", publication number: CN113120418A, discloses: a bottle body, a bottle cap threadedly connected to the top of the bottle body, an exhaust port on one side of the control box, a first opening at the bottom of the control box, a straw inserted into the first opening, an adjusting ball placed inside the first opening, a first spring adhered to the inner wall of one side of the control box, a liquid guide tube wound and fixed to the top of the first spring, a pressing head adhered to the top of the liquid guide tube extending to the outside of the bottle cap, an annular groove on the outer circumference of the straw, a moving block slidably connected in the annular groove, a material leveling plate connected in the movable groove, and a third spring adhered and fixed to the bottom of the material leveling plate.

[0004] In existing technology, the connection between the bottle body and cap of a lotion bottle is usually a threaded connection. This connection method has no obvious disadvantages for disposable lotion bottles. However, for lotion bottles purchased separately by users for refilling, the threaded connection is inconvenient to use. The threaded structure typically has a small opening diameter, making it difficult to pour lotion in. Utility Model Content

[0005] The technical problem to be solved by this application is to provide a press-type emulsion bottle with a press-fit connection structure, which makes it convenient for users to open or close the emulsion bottle; the bottle body adopts an open structure, which makes it convenient for users to fill.

[0006] The technical solution adopted in this application is: a press-type emulsion bottle, including a bottle body and a bottle cap. The top surface of the bottle body is open, and the inner wall surface of the bottle body is a straight cylindrical structure. The bottle cap includes a base, an emulsion pump, and a pressure cap. The pressure cap is movably installed on the base and is connected to the emulsion pump. When the pressure cap is subjected to force, it moves downward relative to the base to drive the emulsion pump to work. A sealing ring is installed on the outer peripheral surface of the base, and the sealing ring acts on the inner wall surface of the bottle body.

[0007] Compared to existing technologies, the advantages of this application are that the bottle surface does not have a threaded structure, and the interference fit connection is achieved through a sealing ring on the outer periphery of the base. Compared to traditional threaded connections, the rotational alignment step is eliminated, allowing for quick one-handed insertion and removal, which is particularly suitable for users' opening and closing needs in dispensing scenarios. The design of the base and the sealing ring forms an axial seal, with the sealing ring diameter slightly larger than the inner diameter of the bottle, utilizing elastic deformation to generate radial pressure. This structure ensures sealing performance while avoiding seal failure caused by thread wear. The sealing ring, made of EPDM material, can withstand an axial pull-out force greater than 3N, meeting the anti-tipping requirements in daily use. The inner wall of the bottle adopts an unrestricted straight cylindrical structure. The inner diameter of the bottle mouth of the straight cylindrical structure can be larger than that of a threaded bottle mouth of the same volume. Combined with the non-necked vertical inner wall, it improves both filling convenience and space utilization.

[0008] In some embodiments of this application, the base includes an outer ring and a base plate connected to the bottom of the outer ring, the base plate having a stepped frustum-shaped structure.

[0009] The stepped frustum-shaped base provides more stable support, ensuring the stability of the connection between the cap and the bottle body and preventing wobbling or loosening caused by an unreasonable structure. This structural design can better adapt to the installation position of the emulsion pump, making the layout of the entire cap assembly more compact, while providing sufficient space for other components (such as sealing rings, caps, etc.), improving the flexibility of the overall design.

[0010] In some embodiments of this application, a through hole is provided in the middle of the base plate, the emulsion pump is mounted on the base plate, and the valve core of the emulsion pump passes through the through hole and is connected to the pressure cap.

[0011] The through-hole design provides precise positioning for the emulsion pump installation, ensuring that the pump's valve core connects accurately to the cap, preventing poor sealing or malfunctions due to misalignment. It also reduces the number and complexity of connecting parts, making the entire press-type emulsion bottle more compact and improving overall product performance and reliability. This design makes the emulsion pump easier to install and remove, facilitating assembly during production and subsequent maintenance and replacement.

[0012] In some embodiments of this application, the outer diameter of the gland is adapted to the inner diameter of the outer ring, the bottom of the gland extends into the outer ring, and there is a gap between the bottom surface of the gland and the base plate.

[0013] The fitting design between the cap and the outer ring, as well as the spacing between the bottom surface of the cap and the base plate, ensures that the cap can move smoothly downwards relative to the base under force, thereby driving the emulsion pump and improving the flexibility and comfort of the pressing operation. The spacing avoids direct contact and friction between the cap and the base plate, reducing jamming caused by friction and extending the product's lifespan. The design of the cap extending into the outer ring increases the contact area between the cap and the outer ring, improving structural stability and also helping to maintain the concentricity of the cap during movement.

[0014] In some embodiments of this application, the outer circumferential surface of the outer ring is provided with a groove, the inner wall surface of the sealing ring is fitted with the groove, and the outer wall surface of the sealing ring is provided with at least two rings of protrusions, which are in contact with the inner wall surface of the bottle.

[0015] The outer circumference of the outer ring features a groove to secure the sealing ring, effectively preventing displacement and ensuring its stability. The raised contact on the outer wall of the sealing ring forms multiple sealing lines with the inner wall of the bottle, enhancing moisture and air leakage prevention. An interference fit design ensures reliable sealing while reducing friction when opening and closing the cap.

[0016] In some embodiments of this application, a limiting groove is provided on the top surface of the bottle body, and a limiting ring is provided on the outer periphery of the top surface of the outer ring, with the limiting ring embedded in the limiting groove.

[0017] The combination of the limiting ring and the limiting groove effectively limits the downward pressure of the bottle cap, preventing excessive pressure that could damage the emulsion pump or cause seal failure, thus protecting the product's internal structure. This design provides precise positioning for the assembly of the bottle cap and bottle body, ensuring they fit together accurately and improving assembly efficiency and product quality consistency.

[0018] Users can clearly feel the limiting effect of the bottle cap during use, avoiding problems caused by improper force and improving the user experience.

[0019] In some embodiments of this application, a plurality of convex rings are provided on the outer peripheral surface of the bottle body. The plurality of convex rings are connected vertically and their central axes are located on the same straight line. The outer surface of the convex rings is an outwardly convex arc-shaped surface.

[0020] The multiple raised rings increase the friction on the outer surface of the bottle, making it more stable and less prone to slipping, especially when hands are wet. The curved raised rings enhance the overall aesthetics of the bottle, resembling the shape of a Michelin tire, adding a decorative touch and increasing the product's visual appeal. The raised rings also increase the bottle's structural strength, allowing it to better withstand external impacts and extending the product's lifespan.

[0021] In some embodiments of this application, the longitudinal section of the top surface of the outer ring is a diagonal line segment.

[0022] The diagonal line design better matches the shape of the bottle, making the cap and bottle look more harmonious and unified, thus enhancing the overall aesthetics of the product.

[0023] In some embodiments of this application, a retaining ring is provided below the outer peripheral surface of the through hole. The retaining ring extends into the emulsion pump and limits the upward position limit of the emulsion pump valve core.

[0024] The insert ring design effectively limits the upward movement of the emulsion pump valve core, preventing structural damage or poor sealing caused by excessive valve core rise, thus ensuring the normal operation of the emulsion pump. The insert ring's cooperation with the emulsion pump enhances its stability within the bottle cap, ensuring optimal performance during use and improving product reliability.

[0025] In some embodiments of this application, a raised ridge is provided around the bottom surface of the bottle near the edge. This raised ridge design ensures the bottle is more stable when placed on the ground or table, preventing wobbling or tipping due to unevenness of the bottle's bottom surface, thus improving product safety. The raised ridge also protects the bottom surface of the bottle to some extent, preventing wear or scratches caused by direct contact with hard surfaces, extending the bottle's lifespan.

[0026] Based on common knowledge in the field, the above-described embodiments can be combined arbitrarily. Attached Figure Description

[0027] The present application will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0028] Figure 1 This is a schematic diagram of the structure of this application;

[0029] Figure 2 This is a cross-sectional view of this application;

[0030] Figure 3 This is a schematic diagram of the exploded structure of this application;

[0031] Figure 4 for Figure 3 A sectional view.

[0032] The specific explanations of the reference numerals in the attached drawings are as follows: 1. Bottle body; 2. Bottle cap; 3. Base; 4. Emulsion pump; 5. Cap; 6. Sealing ring; 7. Outer ring; 8. Base plate; 9. Through hole; 10. Valve core; 12. Protruding contact; 13. Limiting groove; 14. Limiting ring; 15. Protruding ring; 16. Insert ring; 17. Protruding ridge. Detailed Implementation

[0033] The present application will now be described in detail with reference to the accompanying drawings.

[0034] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0035] Press-type emulsion bottle, as in Example 1 Figure 1 , Figure 2 As shown: The device includes a bottle body 1 and a bottle cap 2. The top surface of the bottle body 1 is open, and the inner wall of the bottle body 1 has a straight cylindrical structure. The inner diameter of the bottle mouth of the straight cylindrical structure can be larger than that of a threaded bottle mouth of the same volume. Combined with the non-necked vertical inner wall, this design improves both filling convenience and space utilization. The bottle cap 2 includes a base 3, an emulsion pump 4, and a pressure cap 5. The pressure cap 5 is movably mounted on the base 3 and connected to the emulsion pump 4. When force is applied, the pressure cap 5 moves downward relative to the base 3, driving the emulsion pump 4. A sealing ring 6 is installed on the outer circumference of the base 3, acting on the inner wall of the bottle body 1. The surface of the bottle body 1 does not have a threaded structure; the connection is achieved through the sealing ring 6 on the outer circumference of the base 3. Compared to traditional threaded connections, this eliminates the need for rotational alignment, allowing for quick one-handed insertion and removal, which is particularly suitable for the user's opening and closing needs in dispensing scenarios. The base 3 and the sealing ring 6 form an axial seal. The diameter of the sealing ring 6 is slightly larger than the inner diameter of the bottle body 1, utilizing elastic deformation to generate radial pressure. This structure ensures sealing performance while avoiding seal failure caused by thread wear. The sealing ring 6, made of EPDM material, can withstand an axial pull-out force greater than 3N, meeting the anti-tipping requirements for daily use.

[0036] Example 2, as Figures 1 to 4As shown, the base 3 includes an outer ring 7 and a base plate 8 connected to the bottom of the outer ring 7. The base plate 8 has a stepped frustum-shaped structure. The stepped frustum-shaped base plate 8 provides more stable support, ensuring the stability of the connection between the cap 2 and the bottle body 1, and avoiding shaking or loosening due to unreasonable structure. This structural design can better adapt to the installation position of the emulsion pump 4, making the layout of the entire cap 2 assembly more compact, while providing sufficient space for other components (such as the sealing ring 6, the pressure cap 5, etc.), improving the flexibility of the overall design.

[0037] A through hole 9 is provided in the middle of the base plate 8. The emulsion pump 4 is mounted on the base plate 8, and the valve core 10 of the emulsion pump 4 passes through the through hole 9 and connects to the pressure cap 5. The design of the through hole 9 provides precise positioning for the installation of the emulsion pump 4, ensuring that the valve core 10 of the emulsion pump 4 can be accurately connected to the pressure cap 5, avoiding poor sealing or malfunction due to positional deviation. It also reduces the number and complexity of connecting parts, making the entire press-type emulsion bottle structure more compact and improving the overall performance and reliability of the product. This design makes the installation and disassembly of the emulsion pump 4 more convenient, facilitating assembly during the production process and subsequent maintenance and replacement.

[0038] The outer diameter of the cap 5 is adapted to the inner diameter of the outer ring 7, and the bottom of the cap 5 extends into the outer ring 7, with a gap between the bottom surface of the cap 5 and the base plate 8. This fitting design between the cap 5 and the outer ring 7, and the gap between the bottom surface of the cap 5 and the base plate 8, ensures that the cap 5 can move smoothly downwards relative to the base 3 when under force, thereby driving the emulsion pump 4 and improving the flexibility and comfort of the pressing operation. The gap avoids direct contact and friction between the cap 5 and the base plate 8, reducing jamming caused by friction and extending the product's service life. The design of the cap 5 extending into the outer ring 7 increases the contact area between the cap 5 and the outer ring 7, improving structural stability and also helping to maintain the concentricity of the cap 5 during movement.

[0039] The outer ring 7 has a groove on its outer circumference. The inner wall of the sealing ring 6 fits into the groove. The outer wall of the sealing ring 6 has at least two rings of protrusions 12, which contact and connect with the inner wall of the bottle body 1. The groove on the outer circumference of the outer ring 7 fixes the sealing ring 6, effectively preventing displacement and ensuring its stability. The protrusions 12 on the outer wall of the sealing ring 6 form multiple sealing lines with the inner wall of the bottle body 1, enhancing moisture-proof and leak-proof effects. The interference fit design ensures reliable sealing while reducing friction when opening and closing the cap.

[0040] The top surface of the bottle body 1 is provided with a limiting groove 13, and the outer circumference of the top surface of the outer ring 7 is correspondingly provided with a limiting ring 14, which is embedded in the limiting groove 13. The cooperation between the limiting ring 14 and the limiting groove 13 can effectively limit the downward pressure of the bottle cap 2, preventing excessive pressure on the cap 2 from damaging the emulsion pump 4 or causing sealing failure, thus protecting the internal structure of the product. This design provides precise positioning for the assembly of the cap 2 and the bottle body 1, ensuring that the two can be accurately joined together, improving assembly efficiency and product quality consistency. During use, the user can clearly feel the limiting effect of the cap 2, avoiding usage problems caused by improper force and improving the user experience.

[0041] Multiple raised rings 15 are provided on the outer circumferential surface of the bottle body 1. These rings 15 are connected vertically and their central axes are aligned on the same straight line. The outer surface of each raised ring 15 is an outwardly convex arc shape. The design of multiple raised rings 15 increases the friction on the outer surface of the bottle body 1, making it more stable for the user to grip and less prone to slipping, especially maintaining good grip performance when hands are wet. The arc-shaped raised rings 15 design makes the overall shape of the bottle body 1 more aesthetically pleasing, resembling the shape of a Michelin tire, thus enhancing its decorative appeal and increasing the product's visual attractiveness. The raised rings 15 also increase the structural strength of the bottle body 1 to a certain extent, enabling it to better withstand external impacts and extending the product's lifespan.

[0042] The longitudinal section of the top surface of the outer ring 7 is a slanted segment. The slanted segment design can better match the shape of the bottle body 1, making the bottle cap 2 and the bottle body 1 more coordinated and unified in appearance, and improving the overall aesthetics of the product.

[0043] A retaining ring 16 is disposed below the outer peripheral surface of the through hole 9. The retaining ring 16 extends into the emulsion pump 4 and limits the upward position limit of the valve core 10 of the emulsion pump 4. The design of the retaining ring 16 effectively limits the upward position limit of the valve core 10 of the emulsion pump 4, avoiding structural damage or poor sealing caused by excessive upward movement of the valve core 10, and ensuring the normal operation of the emulsion pump 4. Through the cooperation between the retaining ring 16 and the emulsion pump 4, the stability of the emulsion pump 4 within the bottle cap 2 is enhanced, enabling it to maintain a good working condition during use and improving product reliability.

[0044] The bottle body 1 has a raised ridge 17 near its edge on the bottom surface. The raised ridge 17 ensures the bottle body 1 is more stable when placed on the ground or table, preventing wobbling or tipping due to unevenness of the bottom surface, thus improving product safety. The raised ridge 17 also protects the bottom surface of the bottle body 1 to some extent, preventing wear or scratches caused by direct contact with hard surfaces, extending the lifespan of the bottle body 1.

[0045] The rest of the contents of Example 2 are the same as those of Example 1.

[0046] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A press-type emulsion bottle, characterized in that, The bottle includes a bottle body (1) and a bottle cap (2). The top surface of the bottle body (1) is open, and the inner wall of the bottle body (1) is a cylindrical structure. The bottle cap (2) includes a base (3), an emulsion pump (4), and a pressure cap (5). The pressure cap (5) is movably installed on the base (3) and is connected to the emulsion pump (4). When the pressure cap (5) is subjected to force, it moves downward relative to the base (3) to drive the emulsion pump (4) to work. A sealing ring (6) is installed on the outer circumferential surface of the base (3), and the sealing ring (6) acts on the inner wall of the bottle body (1).

2. The press-type emulsion bottle according to claim 1, characterized in that, The base (3) includes an outer ring (7) and a base plate (8) connected to the bottom of the outer ring (7), the base plate (8) having a stepped frustum structure.

3. The press-type emulsion bottle according to claim 2, characterized in that, The base plate (8) has a through hole (9) in the middle. The emulsion pump (4) is installed on the base plate (8). The valve core (10) of the emulsion pump (4) passes through the through hole (9) and is connected to the pressure cap (5).

4. The press-type emulsion bottle according to claim 2, characterized in that, The outer diameter of the pressure cap (5) is adapted to the inner diameter of the outer ring (7), the bottom of the pressure cap (5) extends into the outer ring (7), and there is a gap between the bottom surface of the pressure cap (5) and the base plate (8).

5. The press-type emulsion bottle according to claim 2, characterized in that, The outer circumferential surface of the outer ring (7) is provided with a groove, the inner wall surface of the sealing ring (6) is in contact with the groove, the outer wall surface of the sealing ring (6) is provided with at least two rings of protrusions (12), and the protrusions (12) of the sealing ring (6) are in contact with the inner wall surface of the bottle body (1).

6. The press-type emulsion bottle according to claim 2, characterized in that, The top surface of the bottle body (1) is provided with a limiting groove (13), and the outer circumference of the top surface of the outer ring (7) is provided with a limiting ring (14), which is embedded in the limiting groove (13).

7. The press-type emulsion bottle according to claim 1, characterized in that, The outer circumferential surface of the bottle body (1) is provided with multiple convex rings (15), the multiple convex rings (15) are connected vertically and their central axes are located on the same straight line, and the outer surface of the convex ring (15) is an outwardly convex arc surface.

8. The press-type emulsion bottle according to claim 2, characterized in that, The longitudinal section of the top surface of the outer ring (7) is a diagonal line segment.

9. The press-type emulsion bottle according to claim 3, characterized in that, A insert ring (16) is provided below the outer peripheral surface of the through hole (9). The insert ring (16) extends into the emulsion pump (4) and restricts the upper position limit of the valve core (10) of the emulsion pump (4).

10. The press-type emulsion bottle according to claim 1, characterized in that, The bottom surface of the bottle (1) is provided with a raised ridge (17) near the edge.

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