A straw press bottle

Abstract

This invention provides a straw-pressing bottle, relating to the field of press container technology. It includes a bottle body, a pressing head at the bottle opening, and a straw connected to the pressing head. A disc-shaped base is fixed to the end of the straw. The diameter of the disc-shaped base is larger than the outer diameter of the straw but smaller than the inner diameter of the bottle body. The bottom surface of the disc-shaped base has a contact surface with a curvature matching the inner surface curvature of the bottle body's bottom. The disc-shaped base has a hollow buoyancy cavity inside, the volume of which is configured to provide buoyancy for the semi-solid material in the bottle, allowing the disc-shaped base to float above the surface of the semi-solid material. The straw is made of a flexible material and has a bending allowance to float with the disc-shaped base. This invention, through the coordinated design of the disc-shaped base and the flexible straw, enables the straw end to automatically follow changes in the liquid level of the semi-solid material, effectively sealing and concentrating the semi-solid material, significantly reducing residue inside the bottle, and improving dispensing efficiency and user experience.

Description

Technical Field

[0001] This utility model relates to the field of press container technology, and more specifically, to a straw press bottle. Background Technology

[0002] Most pump bottles on the market currently use a round-ended straw with a flat or ordinary curved bottom design. This structure maintains basic functionality when pumping low-viscosity liquids, but it reveals significant drawbacks when handling high-viscosity semi-solid materials (sealants, waterproofing materials). Because the bottom of a regular straw has a fixed-diameter circular opening, its contact area with the bottle bottom is limited. As more material is consumed, the gap between the straw end and the bottle bottom gradually increases, causing the vacuum suction force of the straw end to decrease sharply. This results in a large amount of semi-solid material remaining at the bottom of the bottle, making it difficult to completely remove under normal operation.

[0003] The aforementioned structural issues often require users to repeatedly tilt and vigorously tap the bottle towards the end of its use to increase the extraction rate of residual semi-solid material. This method is not only cumbersome but also inefficient. This incomplete extraction results in the actual usable volume of the product being lower than the nominal capacity, causing resource waste and economic losses for consumers. Utility Model Content

[0004] The problem this invention solves is how to reduce the amount of semi-solid material residue in press bottles and improve the efficiency of dispensing.

[0005] To solve the above problems, this utility model provides a straw press bottle, including a bottle body, a press head disposed at the bottle mouth and a straw connected to the press head. The end of the straw is fixedly connected to a disc-shaped base. The diameter of the disc-shaped base is larger than the outer diameter of the straw and smaller than the inner diameter of the bottle body. The bottom surface of the disc-shaped base is provided with a contact surface that matches the curvature of the inner surface of the bottom surface of the bottle body.

[0006] The disc-shaped base has a central through hole that communicates with the straw. The disc-shaped base has a hollow buoyancy cavity inside. The volume of the hollow buoyancy cavity is configured such that the disc-shaped base floats on the surface of the semi-solid material in the bottle under the buoyancy provided by the semi-solid material in the bottle. The straw is a flexible straw and the length of the straw is greater than or equal to a preset length. The preset length is equal to the distance from the pressing head (2) at the bottle mouth to the disc-shaped base when the bottom surface of the disc-shaped base abuts against the inner surface of the bottom surface of the bottle.

[0007] Optionally, the ratio of the radius of curvature of the contact surface of the disc-shaped base to the radius of curvature of the bottom surface of the bottle is 1:1 to 1.5:1, and the edge of the contact surface of the disc-shaped base is provided with an elastic sealing ring.

[0008] Optionally, the volume of the hollow buoyancy cavity accounts for 40% to 60% of the total volume of the disc-shaped base.

[0009] Optionally, the bottom of the hollow buoyancy cavity is filled with hydrophobic closed-cell foam.

[0010] Optionally, the diameter of the central through hole is 0.1 mm to 0.5 mm larger than the outer diameter of the straw.

[0011] Optionally, the end of the straw is fixed at the central through hole by a flexible connection.

[0012] Optionally, the top of the hollow buoyancy cavity is provided with a pressure relief through hole, the diameter of which is 1 / 10 to 1 / 8 of the diameter of the central through hole.

[0013] Optionally, the end of the straw protrudes from the suspension surface of the disc-shaped base and contacts the semi-solid material, wherein the suspension surface is the contact surface between the disc-shaped base and the semi-solid material.

[0014] Optionally, the bottom edge of the disc-shaped base is provided with a warped portion, which tilts upward from the edge of the disc-shaped base toward the bottle body, with a warping angle greater than 15° and less than 30°.

[0015] Optionally, the pressing head is a press pump type pressing head.

[0016] Compared to existing technologies, the advantages of this novel straw-press bottle are as follows: The basic liquid-dispensing structure is formed by the bottle body, pressing head, and connecting straw. A disc-shaped base is fixed at the end of the straw, enabling effective collection and suction of semi-solid materials, avoiding the problem of material dispersion and residue in traditional press bottles. The diameter of the disc-shaped base is larger than the outer diameter of the straw but smaller than the inner diameter of the bottle, ensuring smooth sliding while reducing friction. Its bottom surface has a contact surface that matches the curvature of the inner surface of the bottle bottom, achieving a tight fit at low liquid levels, further reducing residue. A central through-hole communicating with the straw is opened on the disc-shaped base, and a hollow buoyancy cavity is provided inside the disc-shaped base to provide buoyancy adapted to the material density, ensuring that the base always floats on the surface of the semi-solid material. The flexible straw's bending allowance allows it to float synchronously with the liquid surface, ensuring that the straw end is always on the surface of the material. The straw is made of flexible material with good elastic deformation ability, avoiding damage caused by stress concentration. This invention, through the coordinated design of a disc-shaped base and a flexible straw, enables the straw tip to automatically follow the changes in the liquid level of the semi-solid material, effectively sealing and concentrating the semi-solid material, significantly reducing residue in the bottle, and improving dispensing efficiency and user experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a straw-press bottle according to an embodiment of the present utility model.

[0018] Explanation of reference numerals in the attached figures:

[0019] 1-Bottle body; 2-Pressing head; 3-Straw; 4-Disc-shaped base; 41-Hollow buoyancy cavity. Detailed Implementation

[0020] 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0021] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0022] Traditional pump bottles with straws are primarily used for dispensing liquids and typically consist of a bottle body, a pump head, and a straw connected to the pump head. However, traditional pump bottles have significant drawbacks when used for semi-solid materials (such as creams and concentrated sauces): the straw tip struggles to reach the curved corners at the bottom of the bottle, resulting in a large amount of dispersed material remaining at the bottom and edges; furthermore, the straw itself cannot actively conform to the bottom of the bottle as the liquid level drops, especially at low liquid levels where the residue is more pronounced. This problem significantly reduces material dispensing efficiency and leads to resource waste.

[0023] To solve the above problems, refer to Figure 1 This application provides a straw press bottle, including a bottle body 1, a press head 2 disposed at the bottle mouth, and a straw 3 connected to the press head 2. The end of the straw 3 is fixedly connected to a disc-shaped base 4. The diameter of the disc-shaped base 4 is larger than the outer diameter of the straw 3 and smaller than the inner diameter of the bottle body 1. The bottom surface of the disc-shaped base 4 is provided with a contact surface that matches the curvature of the inner surface of the bottom surface of the bottle body 1.

[0024] Specifically, the bottle body 1, the pressing head 2, and the straw 3 of the straw-pressing bottle together constitute the liquid dispensing passage. The bottle body 1 is made of food-grade plastic or glass, possessing good sealing and stability, suitable for containing semi-solid materials (such as sealants, waterproofing materials, etc.). The bottle mouth has a sealing structure adapted to the pressing head 2, ensuring that the inside of the bottle body 1 remains clean and preventing leakage during use. The pressing head 2 is installed at the top of the bottle mouth and preferably employs an elastic reset mechanism, such as a spring assembly, so that it can automatically spring back to its original position after being pressed. The pressing head 2 has a flow guide channel inside, connecting the straw 3 to the external outlet, thereby realizing the extraction of semi-solid materials. The straw 33 is made of a flexible material, such as silicone or soft polyvinyl chloride (PVC), and its length is sufficient to extend from the bottle mouth to the bottom area of ​​the bottle body 1. The end of the straw 3 is fixedly connected to a disc-shaped base 4. The disc-shaped base 4 is generally disc-shaped, and its diameter is larger than the outer diameter of the straw 3 and smaller than the inner diameter of the bottle 1, so as to ensure that the disc-shaped base 4 can float stably inside the bottle 1 without tipping over or getting stuck.

[0025] In this embodiment, the bottom surface of the disc-shaped base 4 is provided with a contact curved surface. The shape of the contact curved surface matches the curvature of the inner surface of the bottom of the bottle body 1, allowing the disc-shaped base 4 to conform to the curve of the bottom of the bottle body 1 and float more stably on the surface of the semi-solid material. This embodiment is applicable to cases where the bottom of the bottle body 1 has an arc-shaped structure, effectively improving the accuracy and smoothness of the positioning of the end of the straw 3.

[0026] The disc-shaped base 4 has a central through hole that communicates with the straw 3. The interior of the disc-shaped base 4 has a hollow buoyancy cavity 41. The volume of the hollow buoyancy cavity 41 is configured such that the disc-shaped base 4 floats on the surface of the semi-solid material in the bottle 1 under the buoyancy provided by the semi-solid material in the bottle 1. The straw 3 is a flexible straw and the length of the straw 3 is greater than or equal to a preset length. The preset length is equal to the distance from the pressing head 2 at the bottle mouth to the disc-shaped base 4 when the bottom surface of the disc-shaped base 4 abuts against the inner surface of the bottom surface of the bottle 1.

[0027] Furthermore, to achieve a stable connection between the straw 3 and the disc-shaped base 4 and ensure smooth material flow, a central through-hole is provided at the geometric center of the disc-shaped base 4. This central through-hole penetrates the upper and lower surfaces of the disc-shaped base 4 and is sealed to the end of the straw 3, thereby enabling continuous conveying of semi-solid material from the bottom of the bottle 1 towards the pressing head 2. The disc-shaped base 4 has a hollow buoyancy cavity 41 inside, which is formed inside the disc-shaped base 4 through injection molding or integral molding. The volume of the hollow buoyancy cavity 41 is configured according to the density of the semi-solid material loaded in the bottle 1, so that the disc-shaped base 4 as a whole has sufficient buoyancy, allowing it to always float near the surface of the material. Even as the semi-solid material decreases, the disc-shaped base 4 can float synchronously with the drop in liquid level, thereby ensuring that the straw 3 is always positioned close to the surface of the material, avoiding the intake of air or sediment, improving dispensing efficiency and user experience.

[0028] Because the straw 3 is made of a flexible material, it has a certain degree of bending and deformation capability. When the disc-shaped base 4 floats up and down with the liquid level, the straw 3 can bend and deform within a certain range to adapt to changes in height, without affecting the normal use of the pressing head 2. The length and flexibility of the straw 3 have been optimized and designed to provide sufficient bending allowance, ensuring that a smooth flow path is maintained during the up-and-down movement of the disc-shaped base 4.

[0029] In actual use, the user repeatedly presses the press head 2, and the straw 3 draws the semi-solid material from the bottom of the bottle 1 to the outside. Since the disc-shaped base 4 always floats on the surface of the material, the end of the straw 3 is always in the part of the material that is easier to draw out, avoiding the problem of air being sucked in when the semi-solid material decreases, which is a problem with traditional straws 3. This improves the discharge efficiency and reduces residue.

[0030] This embodiment, through the coordinated design of the disc-shaped base 4 and the straw 3, enables the disc-shaped base 4 to always follow the movement of the semi-solid material liquid surface and seal the semi-solid material, thereby avoiding the dispersion and residue of the semi-solid material, reducing the amount of semi-solid material residue in the press bottle, and improving the efficiency of semi-solid material dispensing.

[0031] In one embodiment, the ratio of the radius of curvature of the contact surface of the disc-shaped base 4 to the radius of curvature of the bottom surface of the bottle body 1 is 1:1 to 1.5:1, and the edge of the contact surface of the disc-shaped base 4 is provided with an elastic sealing ring.

[0032] It should be explained that the 1:1 to 1.5:1 ratio design ensures that the disc base 4 can fit well with the arc structure at the bottom of the bottle 1, maintain a stable posture during floating, reduce the possibility of shaking or tilting, and thus improve the response accuracy of the straw 3 end as the liquid level changes.

[0033] For example, when the bottom of the bottle body 1 is hemispherical or near-spherical, if the radius of curvature R2 of the inner surface of the bottom of the bottle body 1 is 30mm, then the radius of curvature R1 of the contact surface of the disc-shaped base 4 can be set between 30mm and 45mm to achieve the best fit. By reasonably controlling this ratio, the floating stability and guiding properties of the disc-shaped base 4 within the bottle body 1 can be improved without adding additional guiding structures.

[0034] Furthermore, an elastic sealing ring is provided at the edge of the contact surface of the disc-shaped base 4. The elastic sealing ring is made of a flexible material, such as silicone, rubber, or thermoplastic elastomer (TPE), which has good resilience and wear resistance. The elastic sealing ring is tightly attached to the inner wall of the bottom of the bottle body 1, and plays an auxiliary sealing and shock absorption role during the floating process of the disc-shaped base 4, preventing semi-solid materials from leaking between the disc-shaped base 4 and the inner wall of the bottle body 1, while reducing frictional noise or jamming caused by floating.

[0035] This embodiment optimizes the proportional relationship between the radius of curvature of the contact surface of the disc-shaped bottom and the inner surface of the bottom of the bottle 1, and sets an elastic sealing ring at the edge of the contact surface. This not only improves the overall sealing performance and stability of the straw-pressing bottle, but also enhances the product's adaptability to different bottle structures, further improving the user experience and product reliability.

[0036] In one embodiment, the volume of the hollow buoyancy cavity 41 accounts for 40% to 60% of the total volume of the disc-shaped base 4.

[0037] In this embodiment, the volume of the hollow buoyancy cavity 41 is set to be between 40% and 60% of the total volume of the disc-shaped base 4. This ensures that the disc-shaped base 4 has sufficient buoyancy to float on the surface of semi-solid materials of different densities (such as sealant, waterproof materials, etc.), while also retaining enough solid material to maintain structural strength and stability, thus avoiding deformation or damage to the disc-shaped base 4 due to excessive cavity size.

[0038] The hollow buoyancy cavity 41 can be designed in the shape of a ring, cylinder, or multi-cavity partition structure according to actual needs, so as to enhance the uniformity of buoyancy distribution and improve the balance of the disc-shaped base 4 during the floating process. In some embodiments, the hollow buoyancy cavity 41 can also be filled with a light gas (such as air or inert gas) to further improve the overall buoyancy performance.

[0039] In one embodiment, the bottom of the hollow buoyancy cavity 41 is filled with a hydrophobic closed-cell foam.

[0040] Specifically, to further enhance the buoyancy stability and impermeability of the disc-shaped base 4, and improve its long-term durability, the bottom of the hollow buoyancy cavity 41 is further filled with a hydrophobic closed-cell foam. This hydrophobic closed-cell foam is made of a lightweight material with a closed-cell structure, such as polyethylene (PE), polystyrene (PS), or polyurethane (PU) closed-cell foam, and its surface has good hydrophobic properties, making it difficult to absorb water or adsorb semi-solid materials. The hydrophobic closed-cell foam is fixed to the bottom area of ​​the hollow buoyancy cavity 41 by bonding, embedding, or integral molding, forming a stable buoyancy auxiliary structure. By setting a hydrophobic closed-cell foam at the bottom of the hollow buoyancy cavity 41, this embodiment can improve the buoyancy stability and sealing reliability of the disc-shaped base 4 under different usage conditions.

[0041] In one embodiment, the diameter of the central through hole is 0.1 mm to 0.5 mm larger than the outer diameter of the straw 3.

[0042] In this embodiment, the central through hole can be reliably connected to the suction tube 3, which not only achieves a compact structural integration, but also ensures the continuity and sealing of material conveying.

[0043] In one embodiment, the end of the straw 3 is fixed to the central through hole by a flexible connection.

[0044] To enhance the adaptability of the connection between the straw 3 and the disc-shaped base 4, and to allow the end of the straw 3 to float freely within a certain range to better follow changes in the liquid level, the end of the straw 3 is fixed to the central through hole of the disc-shaped base 4 via a flexible connection. The flexible connection can be, but is not limited to, an elastic sealing sleeve connection and a corrugated pipe transition section connection. In this embodiment, the flexible connection not only enhances the structural compatibility between the straw 3 and the disc-shaped base 4, but also effectively alleviates the stress concentration problem caused by the floating of the disc-shaped base 4, preventing fatigue fracture of the connection due to repeated bending or pulling.

[0045] In one embodiment, the top of the hollow buoyancy cavity 41 is provided with a pressure relief through hole, the diameter of which is 1 / 10 to 1 / 8 of the diameter of the central through hole.

[0046] Specifically, to improve the air pressure balance performance of the disc-shaped base 4 during floating and prevent unstable floating or suction that hinders material flow due to air pressure changes inside the hollow buoyancy cavity 41, a pressure-reducing through-hole is further provided at the top of the hollow buoyancy cavity 41. The pressure-reducing through-hole penetrates the upper structure of the disc-shaped base 4 and communicates with the hollow buoyancy cavity 41. The pressure-reducing through-hole allows for a small amount of gas exchange between the interior of the hollow buoyancy cavity 41 and the interior space of the bottle 1, thereby avoiding resistance or abnormal floating due to air pressure changes in the enclosed space during the up-and-down floating of the disc-shaped base 4, ensuring that it can float freely and smoothly with changes in the semi-solid material liquid level.

[0047] In one embodiment, the end of the straw 3 protrudes from the suspension surface of the disc-shaped base 4 and contacts the semi-solid material, wherein the suspension surface is the contact surface between the disc-shaped base 4 and the semi-solid material.

[0048] It should be explained that the end of the straw 3 protrudes from the suspension surface of the disc-shaped base 4. That is, when the disc-shaped base 4 floats on the surface of the semi-solid material, the end of the straw 3 is in direct contact with the semi-solid material to improve the extraction efficiency of the straw press bottle for the semi-solid material and avoid the inability to effectively extract the material due to the end of the straw 3 being too high.

[0049] Specifically, the end of the straw 3 extends downwards from the central through-hole of the disc-shaped base 4 by a short distance, with its length controlled between 0.5mm and 3mm, preferably 1.5mm. This extension allows the end of the straw 3 to be directly inserted into the surface of the semi-solid material, thereby ensuring that during the pressing operation, the semi-solid material can smoothly enter the interior of the straw 3 and be transported to the outlet of the pressing head 2, significantly reducing the possibility of air being sucked in.

[0050] In one embodiment, the bottom edge of the disc-shaped base is provided with a warped portion, the edge portion tilting upwards from the edge of the disc-shaped base 4 toward the bottle body 1, the warping angle being greater than 15° and less than 30°.

[0051] Specifically, the curved portion of the bottom edge of the disc-shaped base 4 extends outward from the periphery of the disc-shaped base 4 and tilts upward, forming a ring shape. Starting from the edge of the disc-shaped base 4, it tilts upward towards the inner wall of the bottle 1, forming a certain guiding angle. This tilting angle α is controlled to be greater than 15° and less than 30°, preferably between 20° and 25°. The angle design of this embodiment can effectively prevent the disc-shaped base 4 from getting stuck due to edge obstruction during floating, and can also enhance its adaptability to the contour of the inner wall of the bottle 1, making the disc-shaped base 4 easier to move smoothly with changes in the liquid level.

[0052] In addition, the warped part also has a certain guiding effect, which can guide the semi-solid material to flow along its inclined surface to the vicinity of the end of the straw 3, thereby improving the suction efficiency. It is especially suitable for materials with high viscosity and poor flowability (such as thick yogurt, jam, flavoring paste, etc.).

[0053] In one embodiment, the pressing head 2 is a press pump type pressing head 2.

[0054] Specifically, the pressing head 2 adopts a press pump type pressing head 2 structure, which integrates a one-way valve assembly and an elastic reset mechanism, and can stably and controllably transport the semi-solid material in the bottle 1 to the outside through repeated pressing actions.

[0055] The press-type pump head 2 includes a pump body shell, piston rod, spring return element, and core components such as an inlet valve and an outlet valve. When the user presses down on the operating part at the top of the press head 2, the piston rod moves down, compressing the pump chamber volume, opening the outlet valve and drawing material from the suction pipe 3 into the pump chamber, then pushing it to the outlet. After releasing the pressure, the spring pushes the piston rod back to its original position, increasing the pump chamber volume, opening the inlet valve to draw in new material, and completing one pumping cycle.

[0056] Furthermore, the discharge port of the press pump type press head 2 can be configured into various forms such as nozzle type, rotary cap type or dropper extension type according to actual application requirements, so as to meet the discharge method requirements under different usage scenarios.

[0057] Although the present invention has been disclosed above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the scope of protection of the present invention.

Claims

1. A straw press bottle characterized by, The bottle includes a bottle body (1), a pressing head (2) located at the bottle mouth, and a straw (3) connected to the pressing head (2). The end of the straw (3) is fixed to a disc-shaped base (4). The diameter of the disc-shaped base (4) is larger than the outer diameter of the straw (3) and smaller than the inner diameter of the bottle body (1). The bottom surface of the disc-shaped base (4) is provided with a contact surface that matches the curvature of the inner surface of the bottom surface of the bottle body (1). The disc-shaped base (4) has a central through hole that communicates with the straw (3). The disc-shaped base (4) has a hollow buoyancy cavity (41) inside. The volume of the hollow buoyancy cavity (41) is configured such that the disc-shaped base (4) floats on the surface of the semi-solid material in the bottle (1) under the buoyancy provided by the semi-solid material in the bottle (1). The straw (3) is a flexible straw and the length of the straw (3) is greater than or equal to a preset length. The preset length is equal to the distance from the pressing head (2) at the bottle mouth to the disc-shaped base (4) when the bottom surface of the disc-shaped base (4) abuts against the inner surface of the bottom surface of the bottle (1).

2. The straw-press bottle according to claim 1, characterized in that, The ratio of the radius of curvature of the contact surface of the disc-shaped base (4) to the radius of curvature of the bottom surface of the bottle (1) is 1:1 to 1.5:1, and the edge of the contact surface of the disc-shaped base (4) is provided with an elastic sealing ring.

3. The straw-press bottle according to claim 1, characterized in that, The volume of the hollow buoyancy cavity (41) accounts for 40% to 60% of the total volume of the disc-shaped base (4).

4. The straw-press bottle according to claim 1, characterized in that, The bottom of the hollow buoyancy cavity (41) is filled with hydrophobic closed-cell foam.

5. The straw-press bottle according to claim 1, characterized in that, The diameter of the central through hole is 0.1 mm to 0.5 mm larger than the outer diameter of the straw (3).

6. The straw-press bottle according to claim 5, characterized in that, The end of the straw (3) is fixed at the central through hole by a flexible connection.

7. The straw-press bottle according to claim 5, characterized in that, The top of the hollow buoyancy cavity (41) is provided with a pressure relief through hole, the diameter of which is 1 / 10 to 1 / 8 of the diameter of the central through hole.

8. The straw-press bottle according to claim 1, characterized in that, The end of the straw (3) protrudes from the suspension surface of the disc-shaped base (4) and comes into contact with the semi-solid material. The suspension surface is the contact surface between the disc-shaped base (4) and the semi-solid material.

9. The straw-press bottle according to claim 1, characterized in that, The edge of the disc-shaped base is provided with a warped part, which tilts upward from the edge of the disc-shaped base (4) toward the bottle body (1) with a warping angle greater than 15° and less than 30°.

10. The straw-press bottle according to claim 1, characterized in that, The pressing head (2) is a press pump type pressing head (2).

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