WO2021159411A1

WO2021159411A1 - Separable hollow straw

Info

Publication number: WO2021159411A1
Application number: PCT/CN2020/075138
Authority: WO
Inventors: 叶卓雄
Original assignee: 龙海有限公司
Priority date: 2020-02-13
Filing date: 2020-02-13
Publication date: 2021-08-19
Also published as: CN115297751B; CN115297751A

Abstract

A separable hollow straw comprises a first tubular wall, a second tubular wall, corresponding connection portions integrally formed with outer sides of the tubular walls, and gaps thereof. The present disclosure realizes a straw which can be separated and cleaned conveniently, thereby facilitating reuse of a straw and control of health risks associated therewith. The present disclosure further provides the straw with surface biofouling resistance, such that the straw is resistant to germs and mildew. Moreover, the straw of the present disclosure is manufactured in one operation by means of injection molding, such that the straw can be cleaned more easily compared with various straws formed by means of extrusion molding, thereby reducing health risks of a user.

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. The straw is not limited to specific beverages, liquid foods and other suction objects.

Background technique

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

In view of this, it is urgent 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, including:

A first tube wall and a second tube wall, wherein the first tube wall and the second tube wall cooperate in a detachable manner to form a hollow straw with a certain aperture;

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

On the outer two sides of the upper middle part of the second tube wall, the second tube wall further includes: a third joining part III and a fourth joining part IV integrally formed with the second tube wall, wherein the first The sum of the radial dimensions of the third joint part and the fourth joint part is greater than the diameter of the inner hollow structure of the straw;

in,

When the first coupling portion I and the third coupling portion III are in a mating state, there is a first gap between the first coupling portion I and the third coupling portion III, and the first gap is convenient for disassembling the first The coupling part I and the third coupling part III; and,

When the second coupling portion II and the fourth coupling portion IV are in a mating state, there is a second gap between the second coupling portion II and the fourth coupling portion IV, and the second gap is convenient for disassembling the second The joining part II and the fourth joining part IV.

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

S100. Feed the raw materials to the hopper of the injection molding machine;

S200, the raw material is melted to the 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 the flowing state is compressed under the pressure of the plunger or screw and moves to the nozzle of the barrel;

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 time is filled, pressure-maintained, and cooled and shaped, the hollow straw is obtained by opening the mold.

It can be understood that the present disclosure implements a straw that is convenient to disassemble and clean, which is helpful for the repeated use of the straw and the control of diet risk; 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 produce the straws at one time by injection molding, which makes the straws disclosed in the present disclosure easier to clean than many extruded straws, and reduces the burden on the user Health risks.

Description of the drawings

Hereinafter, some specific embodiments of the present application will be described in detail in an exemplary but not restrictive manner with reference to the accompanying drawings. The same reference numerals in the drawings indicate the same or similar components or parts. Those skilled in the art should understand that these drawings are not necessarily drawn to scale. In the attached picture:

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

Detailed ways

In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments They are a part of the embodiments of the present disclosure, but not 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 if there is no conflict. Hereinafter, the present utility model will be described in detail with reference to the drawings and the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present disclosure.

It should be noted that the terms in the specification, claims, and drawings of the present disclosure, even if “first”, “second”, etc. are recorded, they are only used to distinguish some objects, not to describe specific The order or precedence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances for the purposes of the embodiments of the present disclosure described herein. In addition, the terms "including" and "having" and any variations of them 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 clearly listed. Those steps or units may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or equipment.

It should be noted that the terms used here 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 also be understood that when the terms "comprising" and/or "including" are used in this specification, they indicate There are features, steps, operations, devices, components, and/or combinations thereof.

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

In the description of the present disclosure, it should be understood that orientation words such as "front, back, up, down, left, right", "lateral/radial, vertical/longitudinal/axial direction, vertical, horizontal" and "top The orientation or positional relationship indicated by ", bottom", etc. is usually based on the orientation or positional relationship shown in the drawings or under normal placement/use conditions, only for the convenience of describing the present disclosure and simplifying the description, and the contrary is not made. In the case of description, these orientation 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 a limitation on the protection scope of the present disclosure; similarly, the orientation word " "Inside and outside" refers to the inside and outside relative to the contour of each component itself.

Referring to Figures 1 and 2, in one embodiment, the present disclosure provides a detachable hollow straw, including:

in,

It can be understood that the above embodiment discloses a detachable straw, which includes a first tube wall and a second tube wall, and corresponding joints and gaps formed integrally with the tube wall on the outside of the tube wall. It should be noted that for the detachable manner of the first tube wall and the second tube wall, see the following for details. In addition, it should be noted that the first tube wall and the second tube wall can be semicircular, or other arc shapes, or even other shapes, as long as the straw can act on the object to be sucked. For example, water, beverages, liquid food, etc. are fine.

It should be particularly emphasized that although the above-mentioned embodiment is only an implementation, the first joint to the fourth joint may not only be located on the outer two parts of the upper middle part of the first and second pipe walls. Side, and can be located at any one of the first tube wall and the second tube wall from top to bottom, or even at each of the first tube wall and the second tube wall.

For the above embodiment, since every two joining parts are located on both sides of the outer side of the corresponding tube wall, it indicates that the body of the detachable straw has a protruding structure. 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 mated/combined to form the detachable straw, the related protruding structure is also matched with the first to fourth coupling parts.

In addition, the first joint part I to the fourth joint part IV play a function of facilitating the removal of the straw (ie, 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 joint part I to the fourth joint part IV are located outside the corresponding tube wall, this means: the sum of the radial dimensions of the first joint part I and the second joint part II (Note: the radial dimension , That is, the dimension in the 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, since it makes the straw easier to fix or hold, the straw can be disassembled more quickly and conveniently.

Exemplary and not restrictive, one possible situation is: the maximum outer diameter of the straw can be designed to be at least 1 time and less than 2 times the hollow inner diameter; or the maximum outer diameter of the straw can be designed according to needs. The parameters of the outer diameter and the hollow inner diameter. A specific example is as follows: the mainstream size of the inner diameter of the hollow structure of the existing straw is about 0.5-1.0cm, assuming that the inner diameter of the straw is 0.6-1.0cm, the maximum wall thickness of the straw is 0.2cm, and the straw body of the straw The maximum outer diameter of is 1.2cm; if the radial dimensions of the aforementioned first and second joints are considered, the outer diameter of the straw and the radial dimensions of the aforementioned joints on both sides of the straw are added together, if the combination of each side The radial dimension of the part is 0.3cm, so the maximum outer diameter of the straw is 1.2+(2×0.3)=1.8cm. It can be understood that the straw is not limited to the above-mentioned size parameters, and the above-mentioned parameters should not be used to limit the understanding of the present disclosure.

Typically, when the straw is disassembled manually or by machine, the above-mentioned embodiment allows the man or machine to pass through the largest outer diameter of the first joint part I to the second joint part II, so as to quickly and conveniently disassemble the straw. The straws. With traditional detachable straws, it is often necessary to start from the outer surface of the straw with an outer diameter of only 0.5-1 cm, which requires very high operations/machines, making it inconvenient to disassemble the traditional detachable straw.

In addition, the above-mentioned embodiment also enables the corresponding first tube wall and second tube wall to be cleaned by an existing cleaning machine after the straw is disassembled. It can be understood that the first joining part I to the fourth joining part IV help each tube wall not easily detach from the internal bearing structure of the cleaning machine attached to the tube wall (for example, carrying the tube) during the cleaning process. Wall shelf). That is to say, because the maximum outer diameter of the straw determined by the coupling part is larger than that of the conventional straw, this makes it easy to fix the corresponding tube wall on a certain area of the cleaning machine or a certain load.

Further, as far as the above-mentioned embodiment is concerned, by designing a corresponding gap at the joint of the first joint part I and the third joint part III, and designing a corresponding gap at the joint of the second joint part II and the fourth joint part IV. With the gap, the first tube wall and the second tube wall can be separated more conveniently by cutting into the gap manually or by a machine, so that the straw is more convenient to disassemble. It can be understood that the wider the gap, the easier it is to remove the straw. For the specific implementation of the gap, refer to the schematic diagrams of the combination of the first tube wall and the second tube wall in different embodiments. For details, refer to Figures 3 and 4 and their descriptions below.

In another embodiment,

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

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

The third coupling portion III and the fourth coupling portion IV are respectively provided with a third protruding pillar B5 and a fourth protruding pillar B7; wherein,

The first coupling portion I and the third coupling portion III are detachably fitted through the first concave column hole A4 and the third convex column B5; and,

The second coupling portion II and the fourth coupling portion IV are detachably fitted through the second concave column hole A6 and the fourth convex column B7.

The above-mentioned embodiment illustrates a solution for assembling the straw by means of the concave-convex column hole aligning and fastening. As shown in Figure 1 and Figure 2, the first tube wall in Figure 1 uses the concave column hole A4 on it and the convex column B5 of the second tube wall in Figure 2 for pressing. Similarly, the concave column hole A6 and the convex column B7 is pressed. Typically, as shown in FIG. 1 and FIG. 2, the height of the concave column hole and/or the convex column can be further used as a basis for designing the size of the gap.

Considering that the disassembly method of the first tube wall and the second tube wall will be described later, therefore, the detachable solution disclosed in this embodiment can be combined with other detachable solutions disclosed in the following embodiment, or in accordance with this Any detachable manner in the disclosure realizes the straw.

Referring to Figure 3, in another embodiment,

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

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

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

The ninth joining portion A11 and the eleventh joining portion A21 are both recessed, and the tenth joining portion B11 and the twelfth joining portion B21 are respectively: a protrusion relative to the ninth joining portion and a relative eleventh joining portion Bulge of the part; where,

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

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

The seventh joint portion A2 and the eleventh joint portion A21 are detachably matched; and,

The eighth coupling portion B2 and the twelfth coupling portion B21 are detachably matched.

It can be understood that this embodiment implements a specific concave-convex interlocking fastening method. Among them, as far as the first tube wall and the second tube wall are concerned, each of the tube walls respectively has protrusions and depressions, and the first tube wall and the second tube wall are buckled through the corresponding protrusions and depressions.

Combined with Figure 3, what needs to be explained is:

3.1) With respect to the axis of the straw, 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 that the outer wall of the tube wall is internally cut to form a depression;

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

It can be found that the first tube wall and the second tube wall in this embodiment are not symmetrical. With reference to Figure 3, it can be found that when the outer walls of the first tube wall and the second tube wall have a certain thickness of unevenness, the first tube wall and the second tube wall at positions A1 and B1 in Figure 3 buckle tightly. , Then the concave and convex parts on the outer wall of the first tube wall and the second tube wall can be more convenient to design a gap with a certain parameter (ie a certain distance), as shown in the gap C2 in Figure 3 (which is not shown in Figure 3). The gap C1) on the opposite side of C2 is provided, so that the straw can still be removed while ensuring the airtightness of the straw. It can be understood that in all the embodiments disclosed in the present disclosure, the straw can be easily detached through the gap, and further using nails or other hard sheet-like objects, or using a robot hand, etc.

Referring to Figure 4, in another embodiment,

On the first tube wall, the first concave column hole A4 of the first joint part extends outwards, and sequentially extends: a thirteenth joint part A13 and a fourteenth joint part A14;

On the first tube wall, the second concave column hole A6 of the second joint part extends outwards, and sequentially extends: a fifteenth joint part A15 and a sixteenth joint part A16;

On the second tube wall, the third protruding pillar B5 of the third coupling portion extends outwards, and sequentially extends: a seventeenth coupling portion B17 and an eighteenth coupling portion B18;

On the second tube wall, the fourth protruding pillar B7 of the fourth joining portion extends outward in sequence: a nineteenth joining portion B19 and a twentieth joining portion B20;

The thirteenth joining portion A13 and the fifteenth joining portion A15 are both convex surfaces, and the fourteenth joining portion A14 and the sixteenth joining portion A16 are respectively: a concave surface opposite to the thirteenth joining portion A13 and a concave surface opposite to the thirteenth joining portion A13. Concave surface of fifteenth junction A15;

The seventeenth joining portion B17 and the nineteenth joining portion B19 are both concave surfaces, and the eighteenth joining portion B18 and the twentieth joining portion B20 are respectively: the convex surface opposite to the seventeenth joining portion B17 and the opposite first The convex surface of the nineteenth junction B19; where,

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

The fourteenth joint portion A14 and the eighteenth joint portion B18 are detachably fitted;

The fifteenth coupling portion A15 and the nineteenth coupling portion B19 are detachably matched; and,

The sixteenth joint portion A16 and the twentieth joint portion B20 are detachably matched.

It can be understood that the foregoing embodiment specifically defines the first coupling portion to the fourth coupling portion 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 help of the thirteenth joining part to the twentieth joining part, the embodiment further strengthens the airtightness of the first tube wall and the second tube wall. Under this premise, furthermore, the present disclosure may additionally be located at the outermost side (that is, the outermost side of the tube wall) from the first joint to the fourth joint, for example, at the fourteenth joint A14 and the fourth joint. At least one of the joints of the eighteenth joint B18 and the joints of the sixteenth joint A16 and the twentieth joint B20 is provided with a corresponding gap to facilitate the removal of the straw, as shown in Figure 4 The gaps C13 and C15 are shown.

In another embodiment,

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

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

On the second tube wall, the third protruding pillar B5 of the third joint part extends inward in sequence: a twenty-fifth joint part B25 and a twenty-sixth joint part B26;

On the second tube wall, the fourth protruding pillar B7 of the fourth coupling portion extends inwardly: a twenty-seventh coupling portion B27 and a twenty-eighth coupling portion B28;

The twenty-first coupling portion A21 and the twenty-third coupling portion A23 are both recessed, and the twenty-second coupling portion A22 and the twenty-fourth coupling portion A24 are respectively: relative to the twenty-first coupling portion Protrusions and protrusions opposite to the twenty-third joint portion;

The twenty-fifth coupling portion B25 and the twenty-seventh coupling portion B27 are both convex, and the twenty-sixth coupling portion B26 and the twenty-eighth coupling portion B28 are respectively: relative to the twenty-fifth coupling portion The depression and the depression relative to the twenty-seventh junction; where,

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

The twenty-second joint portion A22 and the twenty-sixth joint portion B26 are detachably matched;

The twenty-third coupling portion A23 and the twenty-seventh coupling portion B27 are detachably matched; and,

The twenty-fourth coupling portion A24 and the twenty-eighth coupling 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 enhances the airtightness of the first tube wall and the second tube wall.

More preferably, referring to FIG. 4, in another embodiment, the twenty-second coupling portion A22, the twenty-fourth coupling portion A24, the twenty-sixth coupling portion B26, and the twenty-eighth coupling portion B28 are in common The hollow part of the straw at the axis of the straw is constrained.

In addition, in another embodiment, the twenty-first joining portion A21 and the twenty-third joining portion A23 in the first tube wall are indented by the inscribing method described above; the second tube wall The twenty-sixth connecting portion B26 and the twenty-eighth connecting portion B28 in the above are covered to form depressions.

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 extruded straws, and reduces the health risk to the user.

In another embodiment, referring also to Figure 4,

At least at both 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 concavo-convex portions D. The outer surface of the concave-convex portion D may be as described above to further design a corresponding gap, such as the gap C3 in FIG. 4. The concavo-convex portion D (through its gap C3, using nails or other hard sheet-like objects, or using a manipulator, etc.) not only helps to remove the straw to separate the first and second tube walls, but also, the concavo-convex portion D also makes the straw in use, for example, when inserted into a packaging box through the straw hole, at the moment when the straw is inserted, the outside air is more likely to enter the packaging box through the concave and convex part, so that the straw can be sucked quickly during use. It is faster and the user is relatively labor-saving.

In another embodiment,

The materials of the first tube wall and the second tube wall include any one 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), or other degradable or biodegradable polymers;

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

(4.1) Thermoplastic or thermosetting plastics;

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

(4.3) Other suitable materials.

It can be understood that if plastics with surface biofouling resistance are used, the present disclosure further enables the straws to have surface biofouling resistance so as to achieve the function of repelling bacteria and mildew, and even more environmentally friendly and safe materials can make all The straw has no release and coating-free characteristics. If degradable materials are used, including non-petroleum by-product materials such as PLA, PBS, etc., the technical solution of the present disclosure will be more environmentally friendly from the source to disposal/recycling.

In another embodiment,

The first tube wall and the second tube wall have multiple colors by selecting different colors of raw materials.

Referring to Figures 5 and 6, in another embodiment,

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 on one side of the axis of the hollow straw, and a fourth groove F12 on the other side of the axis of the hollow straw;

The first convex surface E11 and the third groove F11 are matched in a detachable manner; and,

The second convex surface E12 is matched with the fourth groove F12 in a detachable manner.

As far as this embodiment is concerned, it discloses a specific way of butting the concave-convex grooves, which is beneficial to preventing leakage and ensuring airtightness.

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

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

The first groove and the third convex surface are matched in a detachable manner; and,

The second convex surface is matched with the fourth groove in a detachable manner.

As far as this embodiment is concerned, it also discloses a specific way of butt joint of concave-convex grooves, which is also beneficial to prevent leakage and ensure airtightness. Moreover, in this embodiment mode, the first tube wall and the second tube wall Each wall of the tube includes a groove and a convex structure.

Combining the previous embodiments with Figures 1 to 6, especially Figures 1, 2, 5, and 6, it can be found that it shows that the first tube wall and the second tube wall are at the first to fourth joints. Each has a bending part, so the body of the first tube wall and the second tube wall are axisymmetrical. 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 axisymmetric first and second tube walls shown in FIGS. 1, 2, 5, and 6, because the present disclosure can be implemented completely by other embodiments. Symmetrical, undifferentiated, straws that include a first tube wall and a second tube wall that can be replaced with each other. That is to say, 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 completely the same structure, and the two can be replaced with each other, wherein the first tube wall includes:

A first concave hole S1 located in the first coupling portion, and a second convex post S2 located in the second coupling portion that matches the size of the first concave hole S1;

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

and,

The structure of the third joining part III of the second tube wall is exactly the same as the second joining part II of the first tube wall, and the fourth joining part IV of the second tube wall is the same as that of the first tube wall. The structure of the first coupling part I is exactly the same;

The first coupling portion I and the third coupling portion III are detachably matched through the concave hole of the first coupling portion and the convex post of the third coupling portion;

The second coupling portion II and the fourth coupling portion IV are detachably matched through the convex post of the second coupling portion and the concave hole of the fourth coupling portion;

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

For the above-mentioned embodiment, on the basis of the foregoing first embodiment, the first tube wall and the second tube wall are further provided with the structural characteristics of symmetry and no difference. A complete straw can be formed by exactly the same first tube wall and second tube wall, which can still have the first and second joints described in the first embodiment and the gap between the two tube walls. The technical effect of convenient disassembly and cleaning.

It can be understood that when N straws are disassembled into 2N tube walls and cleaned and need to be reassembled into a straw, there is no need to deliberately distinguish between the first tube wall and the second tube wall, but only two tube walls can be selected arbitrarily. Can be combined into a straw. Therefore, the first tube wall and the second tube wall not only have the characteristics of replacing each other and being spare parts, which is more conducive to environmental protection and health, but also can further save the cost of assembling the straw.

In another embodiment, it provides specific implementations about the first concave structure and the second convex structure, see FIG. 8:

The first concave structure G1 of the first tube wall A and the second convex structure H2 of the second tube wall B fit together. Similarly, the first concave structure G2 of the second tube wall B and the second convex structure H1 of the first tube wall A fit together.

It should be noted that, similar to FIG. 4 and related embodiments above, the first recessed structure G1 may further include a protruding coupling portion and a recessed coupling portion as its substructures, so that the protruding coupling portion and the recessed The bonding portion of φ forms the recessed structure G1. Similarly, the second protruding structure H1 may also further include a protruding coupling portion and a recessed coupling portion.

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

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

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

For the foregoing embodiment, with reference to FIG. 9, 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 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 between the first tube wall and the second tube wall C22. It should be noted that, compared with the aforementioned concave holes and convex pillars, since the third concave structure and the fourth concave structure do not need to be assembled, they can have different dimensional parameters respectively, as long as they can form a gap between the pipe walls. The gap can be.

In addition, referring to Figure 9, the outer wall of the first tube wall further includes a concave and convex portion D2 (similar to the concave and convex portion D shown in Figures 3 and 4 above), and also maintains: the first tube wall and the second tube wall are symmetrical, Structural features that are indistinguishable and interchangeable.

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

In addition, in another embodiment, see FIG. 10:

In a section perpendicular to the axis of the hollow straw, along one 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 first protruding structures T11 in turn from the inside to the outside. , The first concave hole S11, the first convex-concave surface structure L21, the first convex-concave surface structure L21 extends to the outermost side of the first tube wall;

In a 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 dimensions matching the The first concave structure T12 of the first convex structure T11, the first convex pillar S12 matching the first concave hole S11 in size, and the first concave-convex structure L22 matching the first convex-concave structure L21 in size, so The first concave-convex surface structure L22 extends to the outermost side of the first tube wall.

For the above embodiment, in conjunction with Figure 10, it can be understood that since the first tube wall and the second tube wall are exactly the same, therefore:

The first protruding structure T11 of the first tube wall and the first recessed structure of the second tube wall realize the concave-convex fit by means of fitting,

The first concave hole S11 of the first tube wall and the first convex post of the second tube wall realize the concave-convex fit by fitting,

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 achieve concave-convex fit by abutting the convex surface and the concave surface respectively, and are formed on the outermost side of the straw Gap C21.

Similarly, after the first tube wall and the second tube wall cooperate, a gap C22 is formed.

It can be understood that this embodiment can not only be used to realize the straw body, but also can be used to realize the first coupling part, the second coupling part, the third coupling part, and the fourth coupling part described above, so that the first tube wall and The second tube wall is more tightly combined and still has the characteristics that the two tube walls can be completely replaced with each other, and the straw can be easily removed.

It should be noted that the closer it is to the hollow inner diameter of the straw, the more priority it is to use a fitting method for concave-convex fit to prevent liquid leakage. Therefore, in the first tube wall and the second tube wall, a fitting concave-convex fitting method is adopted near the inner diameter of the hollow.

For the fit between the outer wall of the first tube wall and the second tube wall, when the concave-convex structure is matched with the convex-concave structure, because the concave surface of the concave-convex structure and the convex surface of the corresponding convex-concave structure abut against each other, the planes conflict with each other. The connection method is easier to assemble than the fitting method, which is why the embodiment shown in FIG. 10 and the embodiment shown in FIG. 4 of the present disclosure also adopt convex and concave surfaces to cooperate.

In addition, the present disclosure also discloses a method for manufacturing the hollow straw according to any one of the above embodiments, including the following steps:

S100. Feed the raw materials to the hopper of the injection molding machine;

S500. After a certain period of time is filled, pressure-maintained, and cooled and shaped, the hollow straw is obtained by opening the mold.

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

Preferably, using the technical solutions disclosed in the above-mentioned embodiments, in a typical application scenario of the detachable straw, for example, in the aspect of sucking 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-mentioned parameters can have a larger range of variation. The technical solution of the present disclosure 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 features, as shown in Table 1 and Table 2:

本发明产品特点Product features of the invention	To
√可见管子内壁洁净程度√Visible the cleanliness of the inner wall of the pipe	√具有斥菌防霉特性√With anti-bacterial and anti-mildew properties
√可以直接冲洗清洁内壁√Can directly flush and clean the inner wall	√没有析出及涂层√No precipitation and coating
√可以用洗碗碟机清洗√Can be washed with a dishwasher	√食物接触安全√Safety of food contact
√可以回收循环再造√Can be recycled and recycled	√符合环保指令√Comply with environmental protection directives

Table 1

Table 2

The above are only preferred embodiments of the present disclosure and are not used to limit the present disclosure. For those skilled in the art, the present disclosure may have various modifications and changes. 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

A detachable hollow straw, including:

A first tube wall and a second tube wall, where the first tube wall and the second tube wall cooperate in a detachable manner to form a hollow straw with a certain aperture; wherein,

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

On the outer two sides of the upper middle part of the second tube wall, the second tube wall further includes: a third joining part III and a fourth joining part IV integrally formed with the second tube wall, wherein the first The sum of the radial dimensions of the third joint part and the fourth joint part is greater than the diameter of the inner hollow structure of the straw;

in,

When the first coupling portion I and the third coupling portion III are in a mating state, there is a first gap between the first coupling portion I and the third coupling portion III, and the first gap is convenient for disassembling the first The coupling part I and the third coupling part III; and,

When the second coupling portion II and the fourth coupling portion IV are in a mating state, there is a second gap between the second coupling portion II and the fourth coupling portion IV, and the second gap is convenient for disassembling the second The joining part II and the fourth joining part IV.
The hollow straw according to claim 1, wherein:

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

The third coupling portion III and the fourth coupling portion IV are respectively provided with a third protruding pillar B5 and a fourth protruding pillar B7; wherein,

The first coupling portion I and the third coupling portion III are detachably fitted through the first concave column hole A4 and the third convex column B5; and,

The second coupling portion II and the fourth coupling portion IV are detachably fitted through the second concave column hole A6 and the fourth convex column B7.
The hollow straw according to claim 1, wherein:

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

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

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

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

The ninth joining portion A11 and the eleventh joining portion A21 are both recessed, and the tenth joining portion B11 and the twelfth joining portion B21 are respectively: a protrusion relative to the ninth joining portion and a relative eleventh joining portion Bulge of the part; where,

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

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

The seventh joint portion A2 and the eleventh joint portion A21 are detachably matched; and,

The eighth coupling portion B2 and the twelfth coupling portion B21 are detachably matched.
The hollow straw according to claim 1, wherein:

In a section perpendicular to the axis of the hollow straw, in 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 joint part extends outwards, and sequentially extends: a thirteenth joint part A13 and a fourteenth joint part A14;

On the first tube wall, the second concave column hole A6 of the second joint part extends outwards, and sequentially extends: a fifteenth joint part A15 and a sixteenth joint part A16;

On the second tube wall, the third protruding pillar B5 of the third coupling portion extends outwards, and sequentially extends: a seventeenth coupling portion B17 and an eighteenth coupling portion B18;

On the second tube wall, the fourth protruding pillar B7 of the fourth joining portion extends outward in sequence: a nineteenth joining portion B19 and a twentieth joining portion B20;

The thirteenth joining portion A13 and the fifteenth joining portion A15 are both convex surfaces, and the fourteenth joining portion A14 and the sixteenth joining portion A16 are respectively: a concave surface opposite to the thirteenth joining portion A13 and a concave surface opposite to the thirteenth joining portion A13. Concave surface of fifteenth junction A15;

The seventeenth joining portion B17 and the nineteenth joining portion B19 are both concave surfaces, and the eighteenth joining portion B18 and the twentieth joining portion B20 are respectively: the convex surface opposite to the seventeenth joining portion B17 and the opposite first The convex surface of the nineteenth junction B19; where,

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

The fourteenth joint portion A14 and the eighteenth joint portion B18 cooperate in a detachable manner;

The fifteenth coupling portion A15 and the nineteenth coupling portion B19 are detachably matched; and,

The sixteenth joint portion A16 and the twentieth joint portion B20 are detachably matched.
The hollow straw according to claim 1, wherein:

In a section perpendicular to the axis of the hollow straw, in 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 coupling portion extends inward in sequence: a twenty-first coupling portion A21 and a twenty-second coupling portion A22;

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

On the second tube wall, the third protruding pillar B5 of the third coupling portion extends inwardly: a twenty-fifth coupling portion B25 and a twenty-sixth coupling portion B26;

On the second tube wall, the fourth protruding pillar B7 of the fourth coupling portion extends inwardly: a twenty-seventh coupling portion B27 and a twenty-eighth coupling portion B28;

The twenty-first coupling portion A21 and the twenty-third coupling portion A23 are both recessed, and the twenty-second coupling portion A22 and the twenty-fourth coupling portion A24 are respectively: relative to the twenty-first coupling portion Protrusions and protrusions opposite to the twenty-third joint portion;

The twenty-fifth coupling portion B25 and the twenty-seventh coupling portion B27 are both convex, and the twenty-sixth coupling portion B26 and the twenty-eighth coupling portion B28 are respectively: relative to the twenty-fifth coupling portion The depression and the depression relative to the twenty-seventh junction; where,

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

The twenty-second joint portion A22 and the twenty-sixth joint portion B26 are detachably matched;

The twenty-third coupling portion A23 and the twenty-seventh coupling portion B27 are detachably matched; and,

The twenty-fourth coupling portion A24 and the twenty-eighth coupling portion B28 are detachably matched.
The hollow straw according to claim 1, wherein:

In a section perpendicular to the axis of the hollow straw, in 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 on one side of the axis of the hollow straw, and a fourth groove F12 on the other side of the axis of the hollow straw;

The first convex surface E11 and the third groove F11 are matched in a detachable manner; and,

The second convex surface E12 is matched with the fourth groove F12 in a detachable manner.
The hollow straw according to claim 1, comprising:

The first tube wall and the second tube wall have completely the same structure, and the two can be replaced with each other, wherein the first tube wall includes:

A first concave hole S1 located in the first coupling portion, and a second convex post S2 located in the second coupling portion that matches the size of the first concave hole S1;

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

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

and,

The structure of the third joining part III of the second tube wall is exactly the same as the second joining part II of the first tube wall, and the fourth joining part IV of the second tube wall is the same as that of the first tube wall. The structure of the first coupling part I is exactly the same;

The first coupling portion I and the third coupling portion III are detachably matched through the concave hole of the first coupling portion and the convex post of the third coupling portion;

The second coupling portion II and the fourth coupling portion IV are detachably matched through the convex post of the second coupling portion and the concave hole of the fourth coupling portion;

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 convex structure of the first tube wall and the concave structure of the second tube wall are matched in a detachable manner.
The hollow straw according to claim 1, wherein:

The first tube wall and the second tube wall are formed by injection molding.
The hollow straw according to claim 1, wherein:

At least at both 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 concavo-convex portions.
The hollow straw according to claim 1, wherein:

The materials of the first tube wall and the second tube wall include any one 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), or other degradable or biodegradable polymers;

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

(4.1) Thermoplastic or thermosetting plastics;

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

(4.3) Other suitable materials.
A method for manufacturing the hollow straw according to any one of claims 1 to 10, comprising the following steps:

S100. Feed the raw materials to the hopper of the injection molding machine;

S200, the raw material is melted to the 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 the flowing state is compressed under the pressure of the plunger or screw and moves to the nozzle of the barrel;

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 time is filled, pressure-maintained, and cooled and shaped, the hollow straw is obtained by opening the mold.