CN115297751B - Detachable hollow straw - Google Patents

Abstract

A detachable hollow straw comprises a first tube wall and a second tube wall and a corresponding joint portion on the outer side of the tube wall and integrally formed with the tube wall and a gap thereof. The present disclosure realizes a straw that is easy to disassemble and clean, which is helpful for the repeated use of the straw and the control of dietary risks; and the present disclosure can further make the straw have surface biofouling resistance to achieve the effect of repelling bacteria and mildew; in addition, the present disclosure can also make the straw in one time by injection molding, which makes the straw disclosed in the present disclosure easier to clean than many extrusion-molded straws, reducing the health risks to users.

Description

A detachable hollow straw

Technical Field

The present disclosure relates to the field of daily necessities, and in particular to a detachable hollow straw, wherein the straw is not limited to specific objects of absorption such as beverages and liquid food.

Background Art

In the prior art, a large number of disposable straws exist in the field of beverage consumption and liquid food consumption, which not only causes a waste of resources but is also unfriendly to the environment. Although straws that can be used multiple times have appeared, due to the small diameter of the straws, it is not convenient to disassemble them, which is not conducive to further cleaning them.

In view of this, there is an urgent need to realize a straw that is easy to disassemble and clean.

Summary of the invention

In order to solve the above technical problems, the present disclosure discloses a detachable hollow straw, comprising:

A first tube wall and a second tube wall, wherein the first tube wall and the second tube wall are detachably matched to form a hollow straw having a certain aperture;

On both sides of the outer part of the upper middle part of the first tube wall, the first tube wall further includes: a first combining portion I and a second combining portion II integrally formed with the first tube wall, wherein the sum of the radial dimensions of the first combining portion and the second combining portion is greater than the diameter of the internal hollow structure of the straw; and

On both sides of the outer portion of the middle and upper portion of the second tube wall, the second tube wall further comprises: a third joint portion III and a fourth joint portion IV integrally formed with the second tube wall, wherein the sum of the radial dimensions of the third joint portion and the fourth joint portion is greater than the diameter of the internal hollow structure of the straw;

in,

When the first combining portion I and the third combining portion III are in a mating state, a first gap exists between the first combining portion I and the third combining portion III, and the first gap facilitates the disassembly of the first combining portion I and the third combining portion III; and

When the second combining portion II and the fourth combining portion IV are in a mating state, a second gap exists between the second combining portion II and the fourth combining portion IV, and the second gap facilitates the disassembly of the second combining portion II and the fourth combining portion IV.

In addition, the present disclosure also discloses a method for manufacturing the above-mentioned hollow straw, comprising the following steps:

S100, feeding raw materials into the hopper of the injection molding machine;

S200, the raw material is melted into a molten material in a flowing state in the barrel of the injection molding machine;

S300, in the barrel of the injection molding machine, the molten material in a flowing state is compressed and moves toward the nozzle of the barrel under the pressure of the plunger or the screw;

S400, the molten material at the nozzle is sprayed into the closed mold of the hollow straw through the nozzle;

S500, after a certain period of filling, pressure holding, cooling and shaping, the mold is opened to obtain the hollow straw.

It can be understood that the present disclosure realizes a straw that is easy to disassemble and clean, which facilitates the repeated use of the straw and the control of dietary risks; and, the present disclosure can further make the straw resistant to surface biofouling, thereby achieving the effect of repelling bacteria and mildew; in addition, the present disclosure can also produce the straw in one go through injection molding, which makes the straw disclosed in the present disclosure easier to clean than many extruded straws, thereby reducing the health risks to users.

BRIEF DESCRIPTION OF THE DRAWINGS

Hereinafter, some specific embodiments of the present application will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

1 to 10 are schematic diagrams of the straw structures in various embodiments of the present disclosure.

DETAILED DESCRIPTION

In order to make the purpose, technical scheme and advantages of the embodiments of the present disclosure clearer, the technical scheme in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all of the embodiments. It should be noted that the embodiments in the present disclosure and the features in the embodiments can be combined with each other in the absence of conflict. The utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present disclosure.

It should be noted that the terms in the specification, claims and drawings of the present disclosure, even if recorded as "first", "second", etc., are only used to distinguish some objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate, so as to describe the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present disclosure. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and/or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and/or combinations thereof.

In addition, for ease of description, spatially relative terms such as "on/located above...", "on/located above...", "on the upper surface of...", "above...", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the present disclosure. For example, if the device is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "on/located above..." may include both "above..." and "below..." orientations. The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

In the description of the present disclosure, it is necessary to understand that the orientation or positional relationship indicated by directional words such as "front, back, up, down, left, right", "lateral/radial, vertical/longitudinal/axial direction, vertical, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings or in conventional placement/usage conditions, and are only for the convenience of describing the present disclosure and simplifying such description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present disclosure; similarly, the directional words "inside and outside" refer to the inside and outside relative to the contours of the components themselves.

Referring to FIG. 1 and FIG. 2 , in one embodiment, the present disclosure provides a detachable hollow straw, comprising:

A first tube wall and a second tube wall, wherein the first tube wall and the second tube wall are detachably matched to form a hollow straw having a certain aperture;

On both sides of the outer part of the upper middle part of the first tube wall, the first tube wall further includes: a first combining portion I and a second combining portion II integrally formed with the first tube wall, wherein the sum of the radial dimensions of the first combining portion and the second combining portion is greater than the diameter of the internal hollow structure of the straw; and

On both sides of the outer portion of the middle and upper portion of the second tube wall, the second tube wall further comprises: a third joint portion III and a fourth joint portion IV integrally formed with the second tube wall, wherein the sum of the radial dimensions of the third joint portion and the fourth joint portion is greater than the diameter of the internal hollow structure of the straw;

in,

When the first combining portion I and the third combining portion III are in a mating state, a first gap exists between the first combining portion I and the third combining portion III, and the first gap facilitates the disassembly of the first combining portion I and the third combining portion III; and

When the second combining portion II and the fourth combining portion IV are in a mating state, a second gap exists between the second combining portion II and the fourth combining portion IV, and the second gap facilitates the disassembly of the second combining portion II and the fourth combining portion IV.

It can be understood that the above embodiment discloses a detachable straw, which includes a first tube wall and a second tube wall, and a corresponding joint portion and a gap formed integrally with the tube wall on the outer side of the tube wall. It should be noted that the detachable manner of the first tube wall and the second tube wall is described later. In addition, it should be noted that the first tube wall and the second tube wall can be semicircular, or other arcs, or even other shapes, as long as the straw can act on the object to be sucked, such as water, beverages, liquid food, etc.

It is particularly important to emphasize that, although the above embodiment is only one implementation, the first to fourth combining portions may not only be located on the outer sides of the upper middle portions of the first and second tube walls, but may also be located at any location of the first and second tube walls from top to bottom, or even at every location of the first and second tube walls.

For the above embodiment, since each two joints are located on both sides of the outside of the corresponding tube wall, it indicates that the body of the detachable straw has a protruding structure, and more preferably, the protruding structure is formed during the manufacturing process. It can be understood that when the first tube wall and the second tube wall are matched/combined to assemble the detachable straw, the relevant protruding structure is also matched through the first to fourth joints.

In addition, the first to fourth joints I to IV play a role in facilitating the disassembly of the straw (i.e., separating the first tube wall and the second tube wall), which is one of the characteristics of the present disclosure. This is because: since the first to fourth joints I to IV are located outside the corresponding tube wall, this means: the sum of the radial dimensions of the first joint I and the second joint II (Note: radial dimensions, i.e., dimensions in a direction perpendicular to the axis of the straw) determines the maximum outer diameter of the straw. It should be emphasized that starting from the maximum outer diameter, the straw can be disassembled more quickly and conveniently because it makes the straw easier to fix or hold.

By way of example and not limitation, one possible scenario is that the maximum outer diameter of the straw can be designed to be at least 1 times and less than 2 times the hollow inner diameter thereof; or the parameters of the maximum outer diameter and the hollow inner diameter of the straw can be designed as required. A specific example is as follows: the mainstream dimension of the inner diameter of the hollow structure of the existing straw is approximately 0.5-1.0 cm. Assuming that the inner diameter of the present straw is 0.6-1.0 cm, the maximum wall thickness of the present straw is 0.2 cm, and the maximum outer diameter of the straw body of the present straw is 1.2 cm; if the radial dimensions of the aforementioned first joint and the second joint are considered, the outer diameter of the straw is added to the radial dimensions of the above-mentioned joints on both sides of the straw. If the radial dimension of the joints on each side is 0.3 cm, then the maximum outer diameter of the present straw is 1.2 + (2 × 0.3) = 1.8 cm. It can be understood that the present straw is not limited to the above-mentioned dimensional parameters, and the present disclosure should not be interpreted in a limiting sense by the above-mentioned parameters.

Typically, when the straw is disassembled manually or by machine, the above embodiment allows the manual or machine to start from the maximum outer diameter from the first joint portion I to the second joint portion II, so as to quickly and conveniently disassemble the straw. However, conventional detachable straws often have to start from the outer surface of the straw with an outer diameter of only 0.5-1 cm, which places very high requirements on the operator/machine, making conventional detachable straws inconvenient to disassemble.

In addition, the above embodiment also enables: after the straw is disassembled, the corresponding first tube wall and second tube wall can be cleaned by an existing cleaning machine. It can be understood that the first to fourth joints I to IV are conducive to each tube wall not being easily separated from the internal bearing structure of the cleaning machine to which the tube wall is attached (for example, a rack bearing the tube wall) during the cleaning process. In other words, since the maximum outer diameter of the straw determined by the joint is larger than that of a conventional straw, the corresponding tube wall is easily fixed to a certain area of the cleaning machine or a certain bearing object.

Further, with respect to the above-mentioned embodiment, by designing a corresponding gap at the junction of the first junction I and the third junction III, and designing a corresponding gap at the junction of the second junction II and the fourth junction IV, manual or machine work can more conveniently separate the first tube wall and the second tube wall by cutting into the gap, thereby making the straw easier to disassemble. It can be understood that the wider the gap, the easier it is to disassemble the straw. For the specific implementation of the gap, please refer to the schematic diagrams of the combination of the first tube wall and the second tube wall under different implementations, see Figures 3 and 4 and their descriptions below for details.

In another embodiment,

In a cross section perpendicular to the axis of the hollow straw, along the radial direction from the inside to the outside of the hollow straw:

The first combining part I and the second combining part II are respectively provided with a first concave column hole A4 and a second concave column hole A6;

The third joint part III and the fourth joint part IV are respectively provided with a third convex column B5 and a fourth convex column B7; wherein,

The first combining portion I and the third combining portion III are detachably matched through the first concave column hole A4 and the third convex column B5; and

The second combining portion II and the fourth combining portion IV are detachably matched with each other through the second concave column hole A6 and the fourth convex column B7.

The above embodiment illustrates a method of assembling the straw by fastening the concave and convex column holes. As shown in FIG. 1 and FIG. 2, the first tube wall in FIG. 1 is buckled by using the concave column hole A4 thereon and the convex column B5 of the second tube wall in FIG. 2, and similarly, the concave column hole A6 and the convex column B7 are buckled. Typically, in combination with FIG. 1 and FIG. 2, the height of the concave column hole and/or the convex column can further serve as a design basis for the size of the gap.

Considering that the disassembly method of the first tube wall and the second tube wall will be described later, the detachable scheme disclosed in this embodiment can be arbitrarily combined with other detachable schemes disclosed in the following embodiments, or the straw can be implemented in any detachable manner in the present disclosure.

Referring to FIG. 3 , in another embodiment,

In a cross section perpendicular to the axis of the hollow straw, along the radial direction from the inside to the outside of the hollow straw:

The first tube wall includes a fifth joint portion A1 and a sixth joint portion B1 located on one side of the axis of the hollow straw, and a seventh joint portion A2 and an eighth joint portion B2 located on the other side of the axis of the hollow straw;

The second tube wall includes a ninth joint portion A11 and a tenth joint portion B11 located on one side of the axis of the hollow straw, and an eleventh joint portion A21 and a twelfth joint portion B21 located on the other side of the axis of the hollow straw;

The fifth combining portion A1 and the seventh combining portion A2 are both protrusions, and the sixth combining portion B1 and the eighth combining portion B2 are respectively: a depression relative to the fifth combining portion and a depression relative to the seventh combining portion;

The ninth and eleventh combining parts A11 and A21 are both recessed, and the tenth and twelfth combining parts B11 and B21 are respectively protrusions relative to the ninth and eleventh combining parts; wherein,

The fifth combining portion A1 and the ninth combining portion A11 are matched in a detachable manner;

The sixth combining portion B1 and the tenth combining portion B11 are matched in a detachable manner;

The seventh combining portion A2 is matched with the eleventh combining portion A21 in a detachable manner; and,

The eighth combining portion B2 and the twelfth combining portion B21 are matched with each other in a detachable manner.

It can be understood that this embodiment realizes a specific concave-convex interlocking fastening method. Among them, as for the first tube wall and the second tube wall, each tube wall has a convexity and a concave respectively, and the first tube wall and the second tube wall are buckled together through the corresponding convexity and concave.

In conjunction with Figure 3, it should be noted that:

3.1) With respect to the straw axis, the maximum inner diameter of the first tube wall is greater than the maximum inner diameter of the second tube wall;

3.2) The corresponding depression of the first tube wall is formed by incising the outer wall of the tube wall;

3.3) The corresponding depression of the second tube wall is formed by coating between the outer wall and the inner wall of the tube wall;

It can be found that the first tube wall and the second tube wall in this embodiment are not symmetrical structures. In conjunction with Figure 3, it can be found that when the outer walls of the first tube wall and the second tube wall have concave-convex parts of a certain thickness, since the first tube wall and the second tube wall at the positions A1 and B1 in Figure 3 are tightly buckled, the concave-convex parts on the outer walls of the first tube wall and the second tube wall can be more conveniently designed with gaps of certain parameters (i.e., a certain spacing distance), such as the gap C2 in Figure 3 (wherein the gap C1 on the opposite side of C2 is not shown in Figure 3), so that the straw can still be disassembled while ensuring the airtightness of the straw. It can be understood that all the embodiments disclosed in the present disclosure can conveniently disassemble the straw through the gap, and further use fingernails or other hard and thin objects or use a manipulator, etc.

Referring to FIG. 4 , in another embodiment,

In a cross section perpendicular to the axis of the hollow straw, along the radial direction from the inside to the outside of the hollow straw:

On the first tube wall, the first concave column hole A4 of the first combining portion extends outwards in sequence to include: a thirteenth combining portion A13 and a fourteenth combining portion A14;

On the first tube wall, the second concave column hole A6 of the second joint portion extends outwards in sequence to form: a fifteenth joint portion A15 and a sixteenth joint portion A16;

On the second tube wall, the third protrusion B5 of the third joint portion extends outwards in sequence to form: a seventeenth joint portion B17 and an eighteenth joint portion B18;

On the second tube wall, the fourth protrusion B7 of the fourth joint portion extends outwards in sequence: a nineteenth joint portion B19 and a twentieth joint portion B20;

The thirteenth combining portion A13 and the fifteenth combining portion A15 are both convex surfaces, and the fourteenth combining portion A14 and the sixteenth combining portion A16 are respectively: a concave surface relative to the thirteenth combining portion A13 and a concave surface relative to the fifteenth combining portion A15;

The seventeenth and nineteenth combining parts B17 and B19 are both concave surfaces, and the eighteenth and twentieth combining parts B18 and B20 are respectively convex surfaces relative to the seventeenth and nineteenth combining parts B17 and B19; wherein,

The thirteenth combining portion A13 and the seventeenth combining portion B17 are matched in a detachable manner;

The fourteenth combining portion A14 and the eighteenth combining portion B18 are matched in a detachable manner;

The fifteenth combining portion A15 and the nineteenth combining portion B19 are matched in a detachable manner; and

The sixteenth combining portion A16 and the twentieth combining portion B20 are matched with each other in a detachable manner.

It can be understood that the above embodiment specifically defines the first to fourth combination parts described in the first embodiment above, which defines a specific detachable manner of the first tube wall and the second tube wall. It should be noted that, with the aid of the thirteenth to twentieth combination parts, the embodiment further strengthens the airtightness of the first tube wall and the second tube wall. Under this premise, further, the present disclosure can also additionally provide a corresponding gap at the outermost side of the first to fourth combination parts (i.e., the outermost side of the tube wall), for example, at the combination of the fourteenth combination part A14 and the eighteenth combination part B18, at the combination of the sixteenth combination part A16 and the twentieth combination part B20, at least one of which, so as to facilitate the disassembly of the straw, as shown in the gaps C13 and C15 in Figure 4.

In another embodiment,

In a cross section perpendicular to the axis of the hollow straw, along the radial direction from the inside to the outside of the hollow straw:

On the first tube wall, the first concave column hole A4 of the first combining portion extends inwards in sequence to have: a twenty-first combining portion A21 and a twenty-second combining portion A22;

On the first tube wall, the second concave column hole A6 of the second combining portion extends inwards in sequence to have: a twenty-third combining portion A23 and a twenty-fourth combining portion A24;

On the second tube wall, the third protrusion B5 of the third joint portion extends inwards in sequence to have: a twenty-fifth joint portion B25 and a twenty-sixth joint portion B26;

On the second tube wall, the fourth protrusion B7 of the fourth joint portion extends inwards, and sequentially includes: a twenty-seventh joint portion B27 and a twenty-eighth joint portion B28;

The 21st and 23rd combining portions A21 and A23 are both recessed, and the 22nd and 24th combining portions A22 and A24 are respectively protrusions relative to the 21st and 23rd combining portions;

The twenty-fifth and twenty-seventh combining portions B25 and B27 are both protrusions, and the twenty-sixth and twenty-eighth combining portions B26 and B28 are respectively: a depression relative to the twenty-fifth and a depression relative to the twenty-seventh combining portions; wherein,

The twenty-first combining portion A21 and the twenty-fifth combining portion B25 are matched in a detachable manner;

The 22nd combining portion A22 and the 26th combining portion B26 are matched in a detachable manner;

The twenty-third combining portion A23 and the twenty-seventh combining portion B27 are matched in a detachable manner; and

The twenty-fourth combining portion A24 and the twenty-eighth combining portion B28 are detachably matched.

As mentioned above, similarly, this embodiment not only relates to a detachable manner of the first tube wall and the second tube wall, but also strengthens the airtightness of the first tube wall and the second tube wall.

More preferably, referring to FIG. 4 , in another embodiment, the twenty-second combining portion A22 , the twenty-fourth combining portion A24 , the twenty-sixth combining portion B26 , and the twenty-eighth combining portion B28 jointly constrain the hollow portion of the straw at the axis of the straw.

In addition, in another embodiment, the twenty-first combining portion A21 and the twenty-third combining portion A23 in the first tube wall are formed into a depression by the incision method described above; the twenty-sixth combining portion B26 and the twenty-eighth combining portion B28 in the second tube wall are formed into a depression by the coating method described above.

In another embodiment,

The first tube wall and the second tube wall are formed by injection molding. It can be understood that this makes the straw disclosed in the present disclosure easier to clean than many extrusion-molded straws, reducing the health risks to users.

In another embodiment, also referring to FIG. 4 ,

At least at both ends of the first tube wall and the second tube wall, the outer wall of the first tube wall and the second tube wall includes a concave-convex portion D. The outer surface of the concave-convex portion D can be further designed with a corresponding gap as described above, such as the gap C3 in FIG. 4. The concave-convex portion D (through its gap C3, using a fingernail or other hard thin sheet-like objects, or using a robot, etc.) not only helps to disassemble the straw to separate the first and second tube walls, but also the concave-convex portion D makes it easier for the outside air to enter the packaging box through the concave-convex portion when the straw is used, for example, when the straw is inserted into a packaging box through the straw hole at the moment of insertion, so that the straw can absorb faster during use and the user is relatively less labor-intensive.

In another embodiment,

The materials of the first tube wall and the second tube wall include any of the following:

(1) Food safety grade polypropylene plastic (PP);

(2) Plastics with surface biofouling resistance;

(3) Polylactic acid material (PLA), polybutylene succinate material (PBS), or other degradable or fully biodegradable polymers;

(4) In addition to (1), (2) and (3) above:

(4.1) Thermoplastic or thermosetting plastics;

(4.2) Thermoplastic or thermoset non-petroleum by-product materials; or,

(4.3) Other suitable materials.

It can be understood that if plastic with surface biofouling resistance is used, the present disclosure further enables the straw to have surface biofouling resistance to achieve the effect of repelling bacteria and mildew, and even more environmentally friendly and safe materials can also make the straw have no release and coating-free characteristics. If degradable materials, including non-petroleum byproduct materials such as PLA and PBS, are used, the technical solution of the present disclosure will be more environmentally friendly throughout the entire life cycle from source to disposal/recycling.

In another embodiment,

The first tube wall and the second tube wall have a variety of colors by selecting materials of different colors.

Referring to FIG. 5 and FIG. 6, in another embodiment,

In a cross section perpendicular to the axis of the hollow straw, along the radial direction from the inside to the outside of the hollow straw:

The first tube wall includes a first convex surface E11 located on one side of the axis of the hollow straw, and a second convex surface E12 located on the other side of the axis of the hollow straw;

The second tube wall includes a third groove F11 located on one side of the axis of the hollow straw, and a fourth groove F12 located on the other side of the axis of the hollow straw;

The first convex surface E11 is detachably matched with the third groove F11; and

The second convex surface E12 is detachably matched with the fourth groove F12.

As far as this embodiment is concerned, it discloses a specific method of connecting the concave and convex grooves, which is conducive to preventing leakage and ensuring airtightness.

It should be noted that, in addition to the above-mentioned specific concave-convex groove docking method, in another embodiment, the first tube wall includes a first groove located on one side of the axis of the hollow straw, and a second convex surface located on the other side of the axis of the hollow straw;

The second tube wall includes a third convex surface located on one side of the axis of the hollow straw, and a fourth groove located on the other side of the axis of the hollow straw;

The first groove is detachably matched with the third convex surface; and,

The second convex surface is detachably matched with the fourth groove.

As for this embodiment, it also discloses a specific method of connecting the concave and convex grooves, which is also conducive to leak prevention and ensuring airtightness. In addition, in this embodiment, each tube wall of the first tube wall and the second tube wall includes a groove and a convex surface structure.

Combining the above embodiments and Figures 1 to 6, especially Figures 1, 2, 5, and 6, it can be found that the first tube wall and the second tube wall each have a bending portion at the first to fourth joints, so the main body of the first tube wall and the second tube wall are axially symmetrical. This means that the first tube wall needs a matching second tube wall to form the hollow straw.

However, it should be noted that the embodiments of the present disclosure are not limited to the axially symmetrical first and second tube walls shown in FIGS. 1, 2, 5, and 6, because the present disclosure can be implemented as a completely symmetrical, indifferent, and interchangeable first and second tube walls straw through other embodiments. That is, in the present disclosure, two identical first tube walls can also form the hollow straw.

As described below, referring to FIG. 7 , in another embodiment,

The first tube wall and the second tube wall have the same structure and can replace each other, wherein the first tube wall includes:

A first concave hole S1 located at the first combining portion, and a second convex column S2 located at the second combining portion and matching the first concave hole S1 in size;

In a cross section perpendicular to the axis of the hollow straw, along the radial direction from the inside to the outside of the hollow straw:

A first concave structure G1 located on one side of the axis of the hollow straw, and a second convex structure H1 located on the other side of the axis of the hollow straw and matching the first concave structure in size;

and,

The third joint portion III of the second tube wall has the same structure as the second joint portion II of the first tube wall, and the fourth joint portion IV of the second tube wall has the same structure as the first joint portion I of the first tube wall;

The first combining part I and the third combining part III are matched in a detachable manner through the concave hole of the first combining part and the convex column of the third combining part;

The second combining part II and the fourth combining part IV are matched in a detachable manner through the convex column of the second combining part and the concave hole of the fourth combining part;

The concave structure of the first tube wall and the convex structure of the second tube wall are matched in a detachable manner; and,

The protruding structure of the first tube wall and the recessed structure of the second tube wall are matched in a detachable manner.

The above embodiment is based on the first embodiment described above, and further makes the first tube wall and the second tube wall have symmetrical and indifferent structural characteristics. A complete straw can be formed by the identical first tube wall and the second tube wall, and it can still have the technical effects of the first and second joint parts and the gap between the two tube walls and convenient disassembly and cleaning described in the first embodiment described above.

It can be understood that when N straws are disassembled into 2N tube walls and cleaned and need to be reassembled into straws, it is not necessary to deliberately distinguish between the first tube wall and the second tube wall, but only two tube walls can be randomly selected to assemble into straws. Therefore, the first tube wall and the second tube wall not only have the characteristics of being interchangeable and serving as spare parts for each other, which is more conducive to environmental protection and health, but also can further save the cost of assembling straws.

In another embodiment, a specific implementation of the first concave structure and the second convex structure is provided, see FIG8 :

The first concave structure G1 of the first tube wall A is matched with the second convex structure H2 of the second tube wall B. Similarly, the first concave structure G2 of the second tube wall B is matched with the second convex structure H1 of the first tube wall A.

It should be noted that, similar to FIG. 4 and its related embodiments, the first recessed structure G1 may further include a raised joint portion and a recessed joint portion as its substructures, so that the recessed structure G1 is formed by the raised joint portion and the recessed joint portion. Similarly, the second raised structure H1 may also further include a raised joint portion and a recessed joint portion.

In another embodiment, referring to FIG. 9 , the first tube wall further includes:

In a cross section perpendicular to the axis of the hollow straw, along the radial direction from the inside to the outside of the hollow straw,

The third concave structure J1 is located on one side of the axis of the hollow straw and is the outermost of the first concave structure G1, and the fourth concave structure K1 is located on the other side of the axis of the hollow straw and is the outermost of the second convex structure H1.

For the above embodiment, in combination with FIG9 , it can be understood that the third recessed structure J1 of the first tube wall and the fourth recessed structure K2 of the second tube wall together form a gap C21 between the first tube wall and the second tube wall; and the fourth recessed structure K1 of the first tube wall and the third recessed structure J2 of the second tube wall together form a gap C22 between the first tube wall and the second tube wall. It should be noted that, compared with the concave hole and the convex column mentioned above, since the third recessed structure and the fourth recessed structure do not need to be assembled, the two can have different size parameters respectively, as long as the two can form a gap between the tube walls.

In addition, referring to FIG9 , the outer wall of the first tube wall further includes a concave-convex portion D2 (similar to the concave-convex portion D shown in FIG3 and FIG4 ), and also maintains the structural characteristics that the first tube wall and the second tube wall are symmetrical, indistinguishable, and replaceable with each other.

It can be understood that for each of the embodiments described above, the gap between the first and second tube walls does not depend on the concave-convex portion D or D2, and can be formed on the main body of the first tube wall and the second tube wall without the concave-convex portion. It only requires a recessed structure for the gap to be reserved in advance at the matching position of the first tube wall and the second tube wall.

In addition, in another embodiment, see Figure 10:

In a cross section perpendicular to the axis of the hollow straw, along one side of the axis of the hollow straw, in a radial direction from inside to outside, the first tube wall A is provided with a first protruding structure T11, a first concave hole S11, and a first convex-concave surface structure L21 in sequence from inside to outside, and the first convex-concave surface structure L21 extends to the outermost side of the first tube wall;

In a cross-section perpendicular to the axis of the hollow straw, along the other side of the axis of the hollow straw, in the radial direction from the inside to the outside, the first tube wall A is provided with a first recessed structure T12 whose size matches the first raised structure T11, a first convex column S12 whose size matches the first concave hole S11, and a first concave-convex surface structure L22 whose size matches the first convex-concave surface structure L21, and the first concave-convex surface structure L22 extends to the outermost side of the first tube wall.

With respect to the above embodiment, in combination with FIG. 10 , it can be understood that, since the first tube wall and the second tube wall are exactly the same, therefore:

The first convex structure T11 of the first tube wall and the first concave structure of the second tube wall are engaged with each other to achieve concave-convex matching.

The first concave hole S11 of the first tube wall and the first convex column of the second tube wall are engaged with each other to achieve concave-convex matching.

The first convex-concave surface structure L21 on the outermost side of the first tube wall and the first concave-convex surface structure on the outermost side of the second tube wall are matched with each other by respectively abutting the convex surface and the concave surface, and a gap C21 is formed on the outermost side of the straw.

Similarly, the first tube wall and the second tube wall form a gap C22 after being matched.

It can be understood that this embodiment can be used not only to realize the straw body, but also to realize the first combining portion, the second combining portion, the third combining portion and the fourth combining portion mentioned above, so that the first tube wall and the second tube wall are more tightly combined and still have the characteristics that the two tube walls can be completely replaced by each other, making it easy to disassemble the straw.

It should be noted that the closer to the hollow inner diameter of the straw, the more priority is given to using a chimeric method to perform concave-convex matching to prevent liquid leakage. Therefore, the first tube wall and the second tube wall use a chimeric concave-convex matching method near the hollow inner diameter.

Regarding the cooperation near the outer walls of the first tube wall and the second tube wall, when the concave-convex surface structure cooperates with the convex-concave surface structure, since the concave surface in the concave-convex surface structure abuts against the convex surface in the corresponding convex-concave surface structure, the abutment method between the planes is easier to assemble than the interlocking method. This is why the embodiment shown in Figure 10 of the present disclosure and the embodiment shown in Figure 4 also adopt the cooperation of convex and concave surfaces.

In addition, the present disclosure also discloses a method for manufacturing the hollow straw described in any of the above embodiments, comprising the following steps:

S100, feeding raw materials into the hopper of the injection molding machine;

S200, the raw material is melted into a molten material in a flowing state in the barrel of the injection molding machine;

S300, in the barrel of the injection molding machine, the molten material in a flowing state is compressed and moves toward the nozzle of the barrel under the pressure of the plunger or the screw;

S400, the molten material at the nozzle is sprayed into the closed mold of the hollow straw through the nozzle;

S500, after a certain period of filling, pressure holding, cooling and shaping, the mold is opened to obtain the hollow straw.

It can be understood that the above embodiment discloses an injection molding method, but as an implementation method, it does not exclude other suitable injection molding methods.

Preferably, using the technical solution disclosed in the above embodiment, in a typical application scenario of the detachable straw, for example, in the aspect of absorbing beverages:

The total length of the straw is: 20-25cm;

The inner diameter of the straw is: 0.6-1.0cm;

The wall thickness of the straw is: 0.5-2mm.

It should be noted that for a wider range of application scenarios, the above parameters may have a wider range of variation. The technical solution disclosed in the present invention is not limited to the corresponding parameters.

When the solutions disclosed in the above various embodiments are used in combination, the straw of the present disclosure will have the following characteristics, as shown in Table 1 and Table 2:

Table 1

Table 2

The above are only preferred embodiments of the present disclosure and are not intended to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present disclosure shall be included in the protection scope of the present disclosure.

Claims (4)

1. A detachable hollow straw, comprising: A first tube wall and a second tube wall, wherein the first tube wall and the second tube wall are detachably matched to form a hollow straw with a certain aperture; wherein On both sides of the outer part of the upper middle part of the first tube wall, the first tube wall further includes: a first combining portion I and a second combining portion II integrally formed with the first tube wall, wherein the sum of the radial dimensions of the first combining portion and the second combining portion is greater than the diameter of the internal hollow structure of the straw; and On both sides of the outer portion of the middle and upper portion of the second tube wall, the second tube wall further comprises: a third joint portion III and a fourth joint portion IV integrally formed with the second tube wall, wherein the sum of the radial dimensions of the third joint portion and the fourth joint portion is greater than the diameter of the internal hollow structure of the straw; in, When the first combining portion I and the third combining portion III are in a mating state, a first gap exists between the first combining portion I and the third combining portion III, and the first gap facilitates the disassembly of the first combining portion I and the third combining portion III; and When the second combining portion II and the fourth combining portion IV are in a mating state, a second gap exists between the second combining portion II and the fourth combining portion IV, and the second gap facilitates the disassembly of the second combining portion II and the fourth combining portion IV; in, The first joint part I to the fourth joint part IV facilitate the disassembly of the straw to separate the first tube wall and the second tube wall. Since the first joint part I to the fourth joint part IV are located outside the corresponding tube wall, the sum of the radial dimensions of the first joint part I and the second joint part II determines the maximum outer diameter of the straw, wherein the radial dimension is the dimension in the direction perpendicular to the axis of the straw. Starting from the maximum outer diameter, the straw can be disassembled more quickly and conveniently because it makes it easier to fix or hold the straw. The first to fourth joints I to IV are also advantageous in that each tube wall does not easily separate from the internal bearing structure of the cleaning machine to which the tube wall is attached during the cleaning process; since the maximum outer diameter of the straw determined by the joints is larger than that of a conventional straw, the corresponding tube wall is easily fixed to a certain area of the cleaning machine or a certain bearing object; By designing a corresponding gap at the junction of the first junction part I and the third junction part III, and designing a corresponding gap at the junction of the second junction part II and the fourth junction part IV, the machine can more conveniently separate the first tube wall and the second tube wall by cutting into the gap, thereby making the straw easier to disassemble; in, The first combining part I and the second combining part II are respectively provided with a first concave column hole A4 and a second concave column hole A6; The third joint part III and the fourth joint part IV are respectively provided with a third convex column B5 and a fourth convex column B7; wherein, The first combining portion I and the third combining portion III are detachably matched through the first concave column hole A4 and the third convex column B5; and The second combining portion II and the fourth combining portion IV are detachably matched through the second concave column hole A6 and the fourth convex column B7; in, In a cross section perpendicular to the axis of the hollow straw, along the radial direction from the inside to the outside of the hollow straw: The first tube wall includes a fifth joint portion A1 and a sixth joint portion B1 located on one side of the axis of the hollow straw, and a seventh joint portion A2 and an eighth joint portion B2 located on the other side of the axis of the hollow straw; The second tube wall includes a ninth joint portion A11 and a tenth joint portion B11 located on one side of the axis of the hollow straw, and an eleventh joint portion A21 and a twelfth joint portion B21 located on the other side of the axis of the hollow straw; The fifth combining portion A1 and the seventh combining portion A2 are both protrusions, and the sixth combining portion B1 and the eighth combining portion B2 are respectively: a depression relative to the fifth combining portion and a depression relative to the seventh combining portion; The ninth and eleventh combining parts A11 and A21 are both recessed, and the tenth and twelfth combining parts B11 and B21 are respectively protrusions relative to the ninth and eleventh combining parts; wherein, The fifth combining portion A1 and the ninth combining portion A11 are matched in a detachable manner; The sixth combining portion B1 and the tenth combining portion B11 are matched in a detachable manner; The seventh combining portion A2 is matched with the eleventh combining portion A21 in a detachable manner; and, The eighth combining portion B2 and the twelfth combining portion B21 are matched in a detachable manner; in, In a cross section perpendicular to the axis of the hollow straw, along the radial direction from the inside to the outside of the hollow straw: On the first tube wall, the first concave column hole A4 of the first combining portion extends outwards in sequence to include: a thirteenth combining portion A13 and a fourteenth combining portion A14; On the first tube wall, the second concave column hole A6 of the second joint portion extends outwards in sequence to form: a fifteenth joint portion A15 and a sixteenth joint portion A16; On the second tube wall, the third protrusion B5 of the third joint portion extends outwards in sequence to form: a seventeenth joint portion B17 and an eighteenth joint portion B18; On the second tube wall, the fourth protrusion B7 of the fourth joint portion extends outwards in sequence: a nineteenth joint portion B19 and a twentieth joint portion B20; The thirteenth combining portion A13 and the fifteenth combining portion A15 are both convex surfaces, and the fourteenth combining portion A14 and the sixteenth combining portion A16 are respectively: a concave surface relative to the thirteenth combining portion A13 and a concave surface relative to the fifteenth combining portion A15; The seventeenth and nineteenth combining parts B17 and B19 are both concave surfaces, and the eighteenth and twentieth combining parts B18 and B20 are respectively convex surfaces relative to the seventeenth and nineteenth combining parts B17 and B19; wherein, The thirteenth combining portion A13 and the seventeenth combining portion B17 are matched in a detachable manner; The fourteenth combining portion A14 and the eighteenth combining portion B18 are matched in a detachable manner; The fifteenth combining portion A15 and the nineteenth combining portion B19 are matched in a detachable manner; and The sixteenth combining portion A16 and the twentieth combining portion B20 are matched in a detachable manner; in, In a cross section perpendicular to the axis of the hollow straw, along the radial direction from the inside to the outside of the hollow straw: On the first tube wall, the first concave column hole A4 of the first combining portion extends inwards in sequence to have: a twenty-first combining portion A21 and a twenty-second combining portion A22; On the first tube wall, the second concave column hole A6 of the second combining portion extends inwards in sequence to have: a twenty-third combining portion A23 and a twenty-fourth combining portion A24; On the second tube wall, the third protrusion B5 of the third joint portion extends inwards, and sequentially includes: a twenty-fifth joint portion B25 and a twenty-sixth joint portion B26; On the second tube wall, the fourth protrusion B7 of the fourth joint portion extends inwards, and sequentially includes: a twenty-seventh joint portion B27 and a twenty-eighth joint portion B28; The 21st and 23rd combining portions A21 and A23 are both recessed, and the 22nd and 24th combining portions A22 and A24 are respectively protrusions relative to the 21st and 23rd combining portions; The twenty-fifth and twenty-seventh combining portions B25 and B27 are both protrusions, and the twenty-sixth and twenty-eighth combining portions B26 and B28 are respectively: a depression relative to the twenty-fifth and a depression relative to the twenty-seventh combining portions; wherein, The twenty-first combining portion A21 and the twenty-fifth combining portion B25 are matched in a detachable manner; The 22nd combining portion A22 and the 26th combining portion B26 are matched in a detachable manner; The twenty-third combining portion A23 and the twenty-seventh combining portion B27 are matched in a detachable manner; and The twenty-fourth combining portion A24 and the twenty-eighth combining portion B28 are matched in a detachable manner; in, In a cross section perpendicular to the axis of the hollow straw, along the radial direction from the inside to the outside of the hollow straw: The first tube wall includes a first convex surface E11 located on one side of the axis of the hollow straw, and a second convex surface E12 located on the other side of the axis of the hollow straw; The second tube wall includes a third groove F11 located on one side of the axis of the hollow straw, and a fourth groove F12 located on the other side of the axis of the hollow straw; The first convex surface E11 is detachably matched with the third groove F11; and The second convex surface E12 is matched with the fourth groove F12 in a detachable manner; in, The first tube wall and the second tube wall have the same structure and can replace each other, wherein the first tube wall includes: A first concave hole S1 located at the first combining portion, and a second convex column S2 located at the second combining portion and matching the first concave hole S1 in size; In a cross section perpendicular to the axis of the hollow straw, along the radial direction from the inside to the outside of the hollow straw: A first concave structure G1 located on one side of the axis of the hollow straw, and a second convex structure H1 located on the other side of the axis of the hollow straw and matching the first concave structure in size; and, The third joint portion III of the second tube wall has the same structure as the second joint portion II of the first tube wall, and the fourth joint portion IV of the second tube wall has the same structure as the first joint portion I of the first tube wall; The first combining part I and the third combining part III are matched in a detachable manner through the concave hole of the first combining part and the convex column of the third combining part; The second combining part II and the fourth combining part IV are matched in a detachable manner through the convex column of the second combining part and the concave hole of the fourth combining part; The concave structure of the first tube wall and the convex structure of the second tube wall are matched in a detachable manner; and, The protruding structure of the first tube wall and the recessed structure of the second tube wall are matched in a detachable manner. 2. The hollow straw according to claim 1, wherein: The first tube wall and the second tube wall are formed by injection molding. 3. The hollow straw according to claim 1, wherein: At least at two ends of the first tube wall and the second tube wall, the outer walls of the first tube wall and the second tube wall include concave and convex parts. 4. The hollow straw according to claim 1, wherein: The materials of the first tube wall and the second tube wall include any of the following: (1) Food safety grade polypropylene plastic (PP); (2) Plastics with surface biofouling resistance; (3) Polylactic acid material (PLA) or polybutylene succinate material (PBS).