High-hardness anti-puncture plastic straw

Abstract

The utility model relates to the technical field of articles for daily use, and discloses a high-hardness anti-puncture plastic straw which comprises a first straw body, a stretching assembly used for stretching the first straw body is arranged at the top of the first straw body, a threaded protruding block is arranged at the bottom of the first straw body, and the bottom of the first straw body is in threaded connection with a second straw body. A threaded groove is formed in the second suction pipe, the stretching assembly comprises a telescopic layer, the telescopic layer is arranged at the top of the first suction pipe, hard layers are arranged outside the first suction pipe and the second suction pipe, and reinforcing layers are arranged in the middle of the first suction pipe and the middle of the second suction pipe. According to the utility model, through the arrangement of the threaded convex block and the threaded groove, the first suction pipe and the second suction pipe can be combined, so that the first suction pipe can be prevented from sliding into the second suction pipe due to excessive stress, and the detachable suction pipes can be easily separated, so that the inside and each corner can be conveniently cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of daily necessities, in particular to a high-hardness puncture-resistant plastic straw. Background Art

[0002] Straws are widely used for drinking various cold drinks, such as juice, iced coffee, iced tea, soda water, etc. Cold liquids can be drunk directly through straws, avoiding contact with teeth and reducing tooth irritation. Some high-temperature resistant straws, such as silicone or metal straws, are suitable for hot drinks, such as hot coffee and hot milk tea, helping users avoid direct contact with hot drinks. Using straws can reduce the possibility of spilling drinks for children, helping them drink various liquids such as milk, juice, and milkshakes more safely.

[0003] However, some existing high-hardness puncture-resistant plastic straws are usually stretched when used, directly stretching the two ends of the straw for use. However, this does not take into account that the user will apply pressure on the straw when drinking, causing the upper half of the straw to slide into the lower half of the straw, thereby affecting the normal use of the straw. Therefore, a high-hardness puncture-resistant plastic straw is proposed to solve the above problem. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a high-hardness puncture-resistant plastic straw, which aims to improve the problem in the prior art that the upper half of the straw will slide into the lower half of the straw when the straw is subjected to excessive force.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A high-hardness, puncture-resistant plastic straw comprising a first straw, a stretching assembly disposed at the top of the first straw for stretching the first straw, a threaded protrusion disposed at the bottom of the first straw, a second straw threadedly connected to the bottom of the first straw, and a threaded groove disposed within the interior of the second straw.

[0007] As a further description of the above technical solution:

[0008] The stretching assembly includes a telescopic layer, and the telescopic layer is arranged on the top of the first straw;

[0009] As a further description of the above technical solution:

[0010] The outer portion of the first straw and the second straw is provided with a hard layer, the middle portion of the first straw and the second straw is provided with a reinforcement layer, and the inner portion of the first straw and the second straw is provided with an inner layer;

[0011] As a further description of the above technical solution:

[0012] The outer portion of the threaded protrusion is slidably connected to the inner portion of the threaded groove, and the bottom of the first straw is in contact with the inner wall of the second straw;

[0013] As a further description of the above technical solution:

[0014] The material of the hard layer is high-density polyethylene, the material of the reinforcement layer is thermoplastic polyurethane, and the material of the inner layer is polypropylene.

[0015] The utility model has the following beneficial effects:

[0016] 1. In this utility model, the threaded protrusions and grooves allow the first and second straws to be combined, preventing the first straw from slipping into the second straw due to excessive force. Furthermore, the detachable straws can be easily separated, making it easier to clean the interior and every corner. Traditional one-piece straws can accumulate debris and bacteria, especially after prolonged use. The detachable design makes thorough cleaning easier, thereby improving hygiene.

[0017] 2. In the present invention, the provision of a hard layer (high-density polyethylene) gives the straw high strength and rigidity, and can provide solid protection. Its high density makes the outer layer of the straw less likely to deform or break when subjected to external pressure or impact. The provision of a reinforcement layer (thermoplastic polyurethane) gives the straw excellent elasticity and toughness, and can absorb and disperse external forces, giving the straw good impact and puncture resistance. It is also flexible and durable, and can provide effective cushioning and protection when the straw is squeezed or punctured. The provision of an inner layer (polypropylene) can give the straw high chemical stability and food-grade safety, making it very suitable for the inner wall of the straw that comes into contact with food and beverages, while providing additional support for the straw as a whole, allowing it to maintain its shape and function under high temperature or high pressure conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a three-dimensional schematic diagram of a high-hardness, puncture-resistant plastic straw proposed in the present invention;

[0019] Figure 2 This is a structural schematic diagram of a second high-hardness, puncture-resistant plastic straw proposed in the present invention;

[0020] Figure 3 for Figure 2 A magnified view of point A;

[0021] Figure 4 This is a schematic structural diagram of the hard layer of a high-hardness, puncture-resistant plastic straw proposed in the present invention.

[0022] Legend:

[0023] 1. Straw 1; 2. Telescopic layer; 3. Threaded protrusion; 4. Straw 2; 5. Threaded groove; 6. Hard layer; 7. Reinforcement layer; 8. Inner layer. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Reference Figures 1 to 3 The utility model provides an embodiment of a high-hardness puncture-proof plastic straw, comprising a straw 1, a stretching assembly for stretching the straw 1 provided at the top of the straw 1, the stretching assembly comprising a telescopic layer 2, the telescopic layer 2 provided at the top of the straw 1, so that the straw 1 can be stretched by the provision of the telescopic layer 2, a threaded protrusion 3 provided at the bottom of the straw 1, the bottom of the straw 1 is threadedly connected to the straw 2 4, the interior of the straw 2 4 is provided with a threaded groove 5, the outer portion of the threaded protrusion 3 is slidably connected to the inner portion of the threaded groove 5, and the provision of the threaded protrusion 3 and the threaded groove 5 makes it easy to assemble the straw 1 and the straw 2 4, and can prevent the bottom of the straw 1 from sliding into the interior of the straw 2 4 due to excessive force applied during use, the bottom of the straw 1 contacts the inner wall of the straw 2 4, and then the connection between the straw 1 and the straw 2 4 can be sealed;

[0026] Reference Figure 1 and Figure 4 , the outside of straw 1 and straw 2 4 are both provided with a hard layer 6, and the material of hard layer 6 is high-density polyethylene. The main function of this layer is to provide preliminary protection and support for the straw. The hard layer 6 is made of high-density polyethylene (HDPE). High-density polyethylene is a plastic material with high strength, good rigidity and chemical resistance, and has excellent durability and impact resistance. The presence of this hard layer 6 enables the straw to maintain its shape under the action of external force. Even in the case of squeezing, bending or encountering sharp objects, the outside of the straw can still provide solid protection to prevent puncture or breakage. In addition, high-density polyethylene also has excellent wear resistance, so that the straw will not easily wear or crack even under long-term friction or biting, thereby extending the service life of the straw.

[0027] The middle part of both straw 1 and straw 2 4 is provided with a reinforcement layer 7, and the material of reinforcement layer 7 is thermoplastic polyurethane, which is a material with both elasticity and hardness, and can play a buffering and supporting role when the straw is subjected to external force. The presence of this layer greatly enhances the toughness and impact resistance of the straw. The function of reinforcement layer 7 is to disperse and absorb external forces. When the straw is squeezed or punctured, the thermoplastic polyurethane layer can effectively alleviate the external force and prevent the force from concentrating at a certain point, thereby avoiding the straw from being punctured or damaged. In addition, the elastic properties of thermoplastic polyurethane also make the straw have good flexibility during use, and it can quickly return to its original shape after bending or compression, thereby keeping the function of the straw unaffected.

[0028] Both straw 1 and straw 2 4 are provided with an inner layer 8, and the material of the inner layer 8 is polypropylene, which is a lightweight and chemically stable material, commonly used in food contact applications, and has good safety and heat resistance. Therefore, the use of polypropylene for the inner layer 8 not only ensures the food-grade safety of the straw, but also provides the necessary structural support. The main function of the inner layer 8 is to ensure that the straw is not affected by the composition of the liquid when drinking various types of liquids. Polypropylene has good chemical resistance and can prevent the straw from undergoing chemical reactions or releasing harmful substances due to contact with acidic or alkaline beverages. In addition, the polypropylene material of the inner layer 8 is relatively soft and has a certain toughness, which can maintain the overall elasticity and foldability of the straw. When the user sucks the liquid, the polypropylene layer can ensure that the inner wall of the straw is smooth and will not affect the drinking experience.

[0029] Working Principle: Before use, if the user needs to adjust the length of the straw, they can do so by stretching the component. A telescopic layer 2 is located on top of the straw 1. By gently pulling on this layer, the user can extend the straw 1. This design allows the straw's length to be adjusted to meet the needs of different scenarios, such as cups or bottles of different heights.

[0030] To extend the straw, the user aligns the bottom of straw 1 with the inside of straw 2 4. Straw 1 has a threaded protrusion 3 at its bottom, while straw 2 4 has a corresponding threaded groove 5 inside. The user inserts the threaded protrusion 3 of straw 1 into the threaded groove 5 of straw 2 4 and rotates straw 1, securing the two together through the threads.

[0031] When straw 1 and straw 2 are tightly connected via threads, the bottom of straw 1 comes into contact with the inner wall of straw 2. This design ensures a tight seal at the joint, preventing potential leakage from liquid flowing through the straws. This allows users to drink from the straws without worrying about the seal at the joint.

[0032] After the straws are assembled and put into use, their hard layer 6 (high-density polyethylene) plays a crucial role. Covering the exterior of straws 1 and 2, 4, the hard layer 6 provides a sturdy exterior protection. The unique high strength and rigidity of this material ensures that the straws maintain their shape when subjected to external pressure, bending, or other stresses, preventing deformation or breakage.

[0033] A thermoplastic polyurethane (TPU) reinforcement layer 7 is provided in the middle of straw 1 and straw 2 4. As a material with both elasticity and hardness, thermoplastic polyurethane can buffer and disperse pressure when the straw is impacted by external forces or pierced by sharp objects. When the straw is squeezed or punctured during use, the thermoplastic polyurethane reinforcement layer 7 can effectively disperse the external force, avoid the force from concentrating on a single point, and prevent the straw from being punctured. At the same time, the elastic properties of thermoplastic polyurethane ensure that the straw can quickly return to its original shape after being bent or squeezed, thereby maintaining the function of the straw.

[0034] Both straws 1 and 2 4 are internally layered with an inner layer 8 made of food-grade polypropylene, ensuring chemical stability when exposed to various beverages. The advantages of polypropylene lie in its excellent chemical resistance and food safety, preventing chemical reactions between the straw and the beverage, even with acidic or alkaline drinks. Furthermore, polypropylene is relatively soft, ensuring a smooth inner surface, ensuring a smooth and comfortable experience when the user is sipping liquids.

[0035] After use, the user can easily separate straw 1 and straw 2 4. By rotating in the opposite direction, the user can easily disconnect the threaded protrusion 3 from the threaded groove 5. The detachable design of the straw exposes all internal components, making it easy to thoroughly clean, especially the hard-to-reach corners of traditional straws. This effectively prevents bacterial growth caused by residual liquid accumulation, ensuring the hygienic nature of the straw.

[0036] After cleaning, users can store straws 1 and 2 separately or reassemble them for future use. This detachable and recombinable design not only extends the lifespan of the straws but also makes them easier to store and carry. Furthermore, multiple uses and disassembly for cleaning reduce the waste of disposable straws, demonstrating advantages in environmental protection and sustainability.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-hardness, puncture-resistant plastic straw, comprising a straw (1), characterized in that: The top of the straw (1) is provided with a stretching assembly for stretching the straw (1), the bottom of the straw (1) is provided with a threaded protrusion (3), the bottom of the straw (1) is threadedly connected to the straw (4), and the interior of the straw (4) is provided with a threaded groove (5).

2. The high-hardness, puncture-resistant plastic straw according to claim 1, characterized in that: The stretching assembly comprises a telescopic layer (2), and the telescopic layer (2) is arranged on the top of the straw (1).

3. The high-hardness, puncture-resistant plastic straw according to claim 1, characterized in that: The outside of the first straw (1) and the second straw (4) are both provided with a hard layer (6), the middle of the first straw (1) and the second straw (4) are both provided with a reinforcement layer (7), and the inside of the first straw (1) and the second straw (4) are both provided with an inner layer (8).

4. The high-hardness, puncture-resistant plastic straw according to claim 1, characterized in that: The outside of the threaded protrusion (3) is slidably connected to the inside of the threaded groove (5), and the bottom of the first straw (1) is in contact with the inner wall of the second straw (4).

5. The high-hardness, puncture-resistant plastic straw according to claim 3, characterized in that: The material of the hard layer (6) is high-density polyethylene, the material of the reinforcement layer (7) is thermoplastic polyurethane, and the material of the inner layer (8) is polypropylene.

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