A straw and a straw cup

Abstract

The application provides a straw and a straw cup, and relates to the technical field of daily necessities, which comprises a first pipe body, a connecting section and a second pipe body connected in sequence, the second pipe body can be inclined relative to the first pipe body, and the inclination angle between the second pipe body and the first pipe body is variable; a first fluid channel sequentially passes through the first pipe body, the connecting section and the second pipe body; a concave-convex structure is arranged at the connecting section, when the included angle between the first pipe body and the second pipe body decreases, the concave-convex structure causes the inner walls of the connecting section to approach each other, thereby causing the first fluid channel at the connecting section to be gradually closed. The application makes the fluid channel in the straw completely closed when the straw is bent, thereby eliminating the occurrence of backflow and improving the convenience of the straw and the straw cup when in use.

Description

Technical Field

[0001] The present invention relates to the technical field of daily necessities, and in particular to a straw and a straw cup. Background Art

[0002] Sippy cups are suitable for children. Unlike adult cups, sippy cups have a central straw, making drinking easier. They can help children transition smoothly from bottle feeding to cup feeding while also strengthening their hand-to-mouth coordination. When a child's motor skills improve and they can hold a cup but not yet maintain balance, a sippy cup can be used, giving them a chance to become independent. They're also easy to carry around and can fit in a backpack.

[0003] However, when the straw cup is carried, the liquid in the cup easily flows out of the bottle along the straw, thereby causing liquid leakage, which makes it inconvenient to carry it out. Summary of the Invention

[0004] The object of the present invention is to provide a straw and a straw cup, which can reduce the possibility of liquid in the cup flowing out of the straw when the cup is carried.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a straw comprising: a first tube body, a connecting section, and a second tube body connected in sequence, the second tube body being tiltable relative to the first tube body, and the inclination angle between the second tube body and the first tube body being variable; a first fluid channel, the first fluid channel sequentially passing through the first tube body, the connecting section, and the second tube body; a concave-convex structure being provided at the connecting section, and when the angle between the first tube body and the second tube body decreases, the concave-convex structure causes the inner walls of the connecting section to approach each other, thereby gradually closing the first fluid channel at the connecting section.

[0006] Furthermore, in the above-mentioned straw, the concave-convex structure includes a thickened protrusion on the inner wall of the connecting section.

[0007] Furthermore, in the above-mentioned straw, one end of the connecting section is connected to the second tube body, and the other end of the connecting section is connected to the first tube body, and the inner wall of the one end of the connecting section has the thickened protrusion.

[0008] Furthermore, in the above-mentioned straw, as the concave-convex structure, a concave portion is provided on the outer surface of the connecting section.

[0009] Further, in the straw described above, one end of the connecting section is connected to the second tube body, the other end of the connecting section is connected to the first tube body, and the recess is provided on the outer surface of the other end of the connecting section, and the width of the recess gradually decreases as the included angle between the first tube body and the second tube body decreases.

[0010] Further, in the straw described above, the initial included angle between the central axis of the first tube body and the central axis of the second tube body is 135°-160°.

[0011] Further, in the straw described above, the thickness of the thickened protrusion is 1 / 6-2 / 3 of the wall thickness of the second tube body, the thickened protrusion is circumferentially provided on the inner wall of the connecting section, and the circumferential length of the thickened protrusion is 1 / 3-1 of the circumference of the inner wall of the connecting section.

[0012] Further, in the straw described above, the center point of the recess is the fulcrum when the second tube body rotates.

[0013] Further, in the straw described above, the depth of the recess is 1 / 3-2 / 3 of the wall thickness of the first tube body, and the wall thickness at the position on the connecting section corresponding to the recess is 1 / 3-2 / 3 of the wall thickness of the first tube body.

[0014] Further, in the straw described above, the included angle between the two ends of the recess in the circumferential direction and the perpendicular line between the central axis of the second tube body is 150°-180°.

[0015] Furthermore, the above-mentioned straw further includes a first fixing member and a second fixing member provided on the first tube body, the first fixing member being provided with a ventilation hole, the ventilation hole being provided with a one-way valve; one end of the second fixing member being connected to an end of the first tube body away from the second tube body, and the second fixing member and the first tube body having the same central axis; the second fixing member having a larger radial dimension relative to the central axis than the first tube body; and further including a first clamping groove and a second clamping groove; the first clamping groove and the second clamping groove being located in the second fixing member; the first fluid channel, the first clamping groove, and the second clamping groove being connected in sequence; The first clamping groove includes an expansion section and a transition section connected in sequence, the expansion section is connected to the first fluid channel, the end of the expansion section connected to the first fluid channel is a first connection end, and the end of the expansion section connected to the transition section is a second connection end. The cross-sectional area of ​​the expansion section gradually increases from the first connection end to the second connection end; the cross-sectional area of ​​the transition section is the same as the maximum cross-sectional area of ​​the expansion section; the cross-sectional area of ​​the second clamping groove is smaller than the cross-sectional area of ​​the transition section; a buffer groove is provided on the outer wall of the first tube body, the buffer groove is arranged along the circumference of the first tube body, and the buffer groove is located on the side of the first fixing member away from the second fixing member.

[0016] Furthermore, in the above-mentioned straw, a valve is provided in the second tube body, and the valve is used to limit the flow of fluid through the first fluid channel.

[0017] On the other hand, a straw cup is provided, comprising the straw and a bottle body having an opening, wherein the straw is installed at the opening.

[0018] Furthermore, in the above-mentioned straw cup, the straw cup also includes: a bottle cap and a sliding cover detachably connected to the bottle body; a receiving groove is provided on the bottle cap, and a fixing hole is provided on the receiving groove, and the straw extends into the bottle body through the fixing hole; when the straw is extended into the bottle body, the first tube body is located inside the bottle body, and the second tube body is located outside the bottle body; the sliding cover is hinged to the bottle cap, and when the sliding cover rotates and covers the receiving groove, the sliding cover can rotate the second tube body into the receiving groove.

[0019] Analysis shows that the present invention discloses a straw and a straw cup. The present invention thickens the inner wall of the straw at the bend so that the fluid channel inside the straw is completely closed when the straw is bent, thereby preventing backflow and improving the convenience of the straw and the straw cup when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings and the accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an undue limitation of the present invention. Among them:

[0021] Figure 1 A schematic cross-sectional view of the structure of a straw according to an embodiment of the present invention.

[0022] Figure 2 A schematic three-dimensional diagram of the structure of a straw according to an embodiment of the present invention.

[0023] Figure 3 A schematic perspective view of the structure of a straw cup according to an embodiment of the present invention.

[0024] Figure 4 Schematic diagram of a cross-sectional view of a structure in which the length of the thickened protrusion of an embodiment of the present invention is 1 / 2 of the circumference of the inner wall of the connecting end

[0025] Explanation of the reference numerals: 1 first tube body; 2 connecting section; 3 second tube body; 4 thickened protrusion; 5 first fixing member; 6 ventilation hole; 7 second fixing member; 8 buffer groove; 9 valve; 10 bottle body; 11 bottle cap; 12 sliding cover; 13 receiving groove; 14 recessed portion. DETAILED DESCRIPTION

[0026] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. Each example is provided by way of explanation of the present invention and is not intended to limit the present invention. Indeed, it will be apparent to those skilled in the art that modifications and variations may be made in the present invention without departing from the scope or spirit of the present invention. For example, a feature shown or described as part of one embodiment may be used in another embodiment to produce yet another embodiment. Therefore, it is intended that the present invention encompasses such modifications and variations as come within the scope of the appended claims and their equivalents.

[0027] In the description of the present invention, the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention. The terms "connected", "connected", and "set" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components; they can be wired electrical connections, radio connections, or wireless communication signal connections. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0028] One or more examples of the present invention are shown in the accompanying drawings. The detailed description uses numerical and letter designations to refer to features in the drawings. Like or similar designations in the drawings and the description have been used to refer to like or similar parts of the present invention. As used herein, the terms "first," "second," "third," and "fourth," etc. are used interchangeably to distinguish one component from another and are not intended to indicate the position or importance of individual components.

[0029] like Figures 1-4 As shown, according to an embodiment of the present invention, a straw is provided, which may also be referred to as a straw nozzle, comprising: a first tube body 1, a connecting section 2, and a second tube body 3 connected in sequence, wherein the second tube body 3 can be tilted relative to the first tube body 1, and the tilt angle between the second tube body 3 and the first tube body 1 is variable; a first fluid channel, wherein the first fluid channel sequentially passes through the first tube body 1, the connecting section 2, and the second tube body 3; when the angle between the first tube body 1 and the second tube body 3 decreases, the inner walls of the connecting section 2 approach each other, causing the first fluid channel at the connecting section to gradually close. When the straw is bent, the cross-sectional area of ​​the bend and the surrounding area will decrease. Therefore, by providing the connecting section 2 between the first tube body 1 and the second tube body 3, the cross-sectional area of ​​the bend and the surrounding area can be reduced to a large extent, thereby effectively preventing the fluid from flowing back out of the container through the straw.

[0030] One end of the connecting section is connected to the second tube body, and the other end of the connecting section is connected to the first tube body. The inner wall of one end of the connecting section has a thickened protrusion; the circumferential length of the thickened protrusion 4 is 1 / 3-1 of the circumference of the inner wall of the connecting section.

[0031] Preferably, a recessed portion is provided on the outer surface of the other end of the connecting section 2. When the angle between the first tube body 1 and the second tube body 3 decreases, the width of the recessed portion gradually decreases. Figure 1 The distance between AB is the width of the recessed portion; the center point of the recessed portion is the fulcrum when the second tube body rotates; the depth of the recessed portion is 1 / 3-2 / 3 of the wall thickness of the first tube body 1, and the wall thickness of the corresponding recessed portion on the connecting section is 1 / 3-2 / 3 of the wall thickness of the first tube body; the angle between the two ends of the recessed portion and the central axis of the second tube body is 150°-180°.

[0032] Preferably, the wall thickness of the second tube body 3 is 2.02cm-2.14cm, and the wall thickness of the second tube body 3 can be selected as 2.02cm, 2.04cm, 2.06cm, 2.08cm, 2.10cm, 2.12cm, 2.14cm, preferably 2.08cm; the wall thickness of the first tube body 1 is 2.84cm-2.96cm, and the wall thickness of the first tube body 1 can be selected as 2.84cm, 2.86cm, 2.88cm, 2.90cm, 2.92cm, 2.94cm, 2.96cm, preferably 2.90cm.

[0033] Preferably, the thickness of the thickened protrusion 4 is 1 / 6-2 / 3 of the wall thickness of the second tube body 3. When the thickness of the thickened protrusion 4 is within this thickness range, it does not hinder the flow of liquid in the non-bent state and can seal the first fluid channel in the bent state.

[0034] Preferably, the initial angle between the central axis of the first tube body 1 and the central axis of the second tube body 3 is 135°-160°. When the initial angle between the first tube body 1 and the second tube body 3 is within the above range, it is convenient for users to use.

[0035] Preferably, the cup further includes a first fixing member 5 disposed on the first tube body 1. The first fixing member 5 has a ventilation hole 6 for securing the straw. The ventilation hole is provided with a one-way valve that allows air to flow in one direction and prevents liquid from flowing out of the ventilation hole 6. The straw, passing through the ventilation hole 6 on the first fixing member 5, balances the air pressure between the straw cup and the outside world, thereby enabling the straw to function properly.

[0036] Preferably, a second fixing member 7 is further included, one end of which is connected to the end of the first tube body 1 away from the second tube body 3, and the second fixing member 7 and the first tube body 1 have the same central axis. The coincidence of the central axis of the second fixing member 7 and the first tube body 1 can make the overall structure more balanced and more convenient to install and use.

[0037] Preferably, compared with the first tube body 1 , the radial dimension of the second fixing member 7 relative to the central axis is larger. Since the second fixing member 7 is located inside the container, the larger dimension of the second fixing member 7 is convenient for installing the straw.

[0038] Preferably, it also includes a first snap-fitting groove and a second snap-fitting groove; the first snap-fitting groove and the second snap-fitting groove are located in the second fixing member 7; the first fluid channel, the first snap-fitting groove and the second snap-fitting groove are connected in sequence, and the first snap-fitting groove and the second snap-fitting groove are used to install the hose in the straw cup. Through the two snap-fitting grooves of different sizes, the installation of the hose can be made more stable, which is convenient for users to use.

[0039] Preferably, the first engaging groove comprises an expansion section and a transition section connected in sequence. The expansion section communicates with the first fluid channel. The end of the expansion section connected to the first fluid channel is the first connecting end, and the end of the expansion section connected to the transition section is the second connecting end. The cross-sectional area of ​​the expansion section gradually increases from the first connecting end to the second connecting end; the cross-sectional area of ​​the transition section is the same as the maximum cross-sectional area of ​​the expansion section. Preferably, the cross-sectional area of ​​the second engaging groove is smaller than that of the transition section, and the cross-sectional area of ​​the first engaging groove is larger than that of the second engaging groove, forming a snap-fit ​​structure that effectively prevents the hose from falling off the straw.

[0040] Preferably, a buffer groove 8 is provided on the outer wall of the first tube body 1. The buffer groove 8 is arranged along the circumference of the first tube body 1, and the buffer groove 8 is located on the side of the first fixing member 5 away from the second fixing member 7. The buffer groove 8 can facilitate the installation of the straw. Since the straws are mostly made of flexible materials such as rubber, in order to be installed on the straw cup, the whole will be squeezed to a certain extent. During squeezing, the circumferential deformation will be converted into deformation in the longitudinal direction. The buffer groove 8 can compensate for the deformation in the longitudinal direction, thereby not affecting the installation of the straw.

[0041] Preferably, a valve 9 is provided in the second tube body 3 , and the valve 9 can limit the flow of fluid through the first fluid channel. The valve 9 is composed of two rubber valve flaps. When the user sucks, the valve 9 will open to suck out the liquid.

[0042] like Figure 3 As shown, the present invention also discloses a straw cup, comprising the straw of any of the aforementioned embodiments, the straw cup further comprising: a bottle body 10 with an opening, a bottle cap 11 detachably connected to the bottle body 10, and a sliding cover 12; the bottle cap 11 is provided with a receiving groove 13, the receiving groove 13 is provided with a fixing hole, and the straw extends into the bottle body 10 through the fixing hole; when the straw is extended into the bottle body 10, the first tube body 1 is located inside the bottle body 10, and the second tube body 3 is located outside the bottle body 10; the sliding cover 12 is hinged to the bottle cap 11, and when the sliding cover 12 rotates and covers the receiving groove 13, the sliding cover 12 can rotate the second tube body 3 into the receiving groove 13. The bottle cap 11 is generally provided with an opening connected to the ventilation hole 6 to ensure normal ventilation.

[0043] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: by providing a concave-convex structure on the connecting section, such as providing a thickened protrusion 4 on the inner wall or providing a recessed portion on the outer wall, when the angle between the first tube body and the second tube body decreases, the inner walls of the connecting section are more easily and quickly approached to each other, so that the first fluid channel at the connecting section is gradually closed, thereby effectively avoiding the possibility of fluid backflow when the straw is in a bent state, so that the straw cup does not need to be emptied of the internal fluid when it is carried, thereby improving the convenience of carrying the straw cup.

[0044] Compared with the prior art, the present invention thickens the inner wall of the straw at the bend, so that the fluid channel inside the straw is completely closed when the straw is bent, thereby preventing backflow and improving the convenience of the straw and straw cup when in use.

[0045] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A straw, characterized in that: include: A first tube body, a connecting section, and a second tube body connected in sequence, wherein the second tube body can be tilted relative to the first tube body, and the tilt angle between the second tube body and the first tube body is variable; a first fluid channel, the first fluid channel sequentially passing through the first tube body, the connecting section, and the second tube body; A concave-convex structure is provided at the connecting section. When the angle between the first tube body and the second tube body decreases, the concave-convex structure causes the inner walls of the connecting section to approach each other, thereby gradually closing the first fluid channel at the connecting section. A first fixing member and a second fixing member are provided on the first tube body, wherein the first fixing member is provided with a ventilation hole, and a one-way valve is provided in the ventilation hole; A first clamping slot and a second clamping slot; the first clamping slot and the second clamping slot are located in the second fixing member; in, One end of the second fixing member is connected to an end of the first tube away from the second tube, and the second fixing member and the first tube have the same central axis; Compared with the first tube, the second fixing member has a larger radial dimension relative to the central axis; The first fluid channel, the first clamping groove, and the second clamping groove are connected in sequence; The first engaging groove includes an expansion section and a transition section connected in sequence, the expansion section is in communication with the first fluid channel, one end of the expansion section connected to the first fluid channel is a first connecting end, and one end of the expansion section connected to the transition section is a second connecting end, and the cross-sectional area of ​​the expansion section gradually increases from the first connecting end to the second connecting end; The cross-sectional area of ​​the transition section is the same as the maximum cross-sectional area of ​​the expansion section; The cross-sectional area of ​​the second clamping groove is smaller than the cross-sectional area of ​​the transition section; A buffer groove is provided on the outer wall of the first tube body, the buffer groove is arranged along the circumference of the first tube body, and the buffer groove is located on a side of the first fixing member away from the second fixing member; As the concave-convex structure, the inner wall of the connecting section has a thickened protrusion, and the outer surface of the connecting section has a recessed portion; One end of the connecting section is connected to the second tube body, and the other end of the connecting section is connected to the first tube body. The inner wall of the one end of the connecting section has the thickened protrusion; the outer surface of the other end of the connecting section is provided with the recessed portion. When the angle between the first tube body and the second tube body decreases, the width of the recessed portion gradually decreases. The thickness of the thickened protrusion is 1 / 6-2 / 3 of the wall thickness of the second tube body; The thickened protrusion is arranged along the circumference of the inner wall of the connecting section, and the circumferential length of the thickened protrusion is 1 / 3-1 of the circumference of the inner wall of the connecting section.

2. A straw according to claim 1, characterized in that: An initial angle between a central axis of the first tube body and a central axis of the second tube body is 135°-160°.

3. The straw according to claim 1, characterized in that: The center point of the recessed portion serves as a fulcrum when the second tube body rotates.

4. The straw according to claim 1, characterized in that: The depth of the recessed portion is 1 / 3-2 / 3 of the wall thickness of the first tube body, and the wall thickness at a position on the connecting section corresponding to the recessed portion is 1 / 3-2 / 3 of the wall thickness of the first tube body.

5. The straw according to claim 1, characterized in that: An included angle between two ends of the recessed portion in the circumferential direction and a perpendicular line to the central axis of the second tube body is 150°-180°.

6. The straw according to claim 1, characterized in that: A valve is provided in the second tube body, and the valve is used to limit the flow of fluid through the first fluid channel.

7. A straw cup, characterized in that: The invention comprises the straw according to any one of claims 1 to 6 and a bottle body with an opening, wherein the straw is installed at the opening.

8. The straw cup according to claim 7, wherein: The straw cup further comprises: a bottle cap and a sliding cover detachably connected to the bottle body; The bottle cap is provided with a receiving groove, the receiving groove is provided with a fixing hole, and the straw extends into the bottle body through the fixing hole; When the straw is inserted into the bottle, the first tube is located inside the bottle, and the second tube is located outside the bottle; The sliding cover is hinged to the bottle cap. When the sliding cover rotates and covers the receiving groove, the sliding cover can rotate the second tube body into the receiving groove.

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