Integrated non-return straw

Abstract

The utility model discloses an integrated non-return straw which comprises a straw body, a non-return section is integrally formed in the forming process of the straw body, and the straw body is divided into a long straight pipe section and a short straight pipe section. The non-return section comprises a non-return pipe and a valve plate, one end of the non-return pipe is communicated with the long straight pipe section, the other end of the non-return pipe is communicated with the short straight pipe section, the pipe diameter of the non-return pipe is expanded, more than three balance feet are symmetrically injection-molded on the inner wall surface of the non-return pipe, and the valve plate is arranged in a pipe cavity, leading to the long straight pipe section, of the balance feet in the non-return pipe. And the valve plate and the pipe wall of the non-return pipe form an annular sectional liquid channel under the matching of the balance foot. The non-return sucker has a non-return function, is barrier-free during forward sucking, prevents liquid from flowing back when stopping sucking, and is suitable for weak people such as old people, infants and patients and occasions where multiple people drink water together.

Description

TECHNICAL FIELD

[0001] The utility model relates to a straw, concretely relates to integrated check valve straw. BACKGROUND

[0002] It is known that the straw is used everywhere in people's daily life, and the color is colorful, the shape is different, and even in order to satisfy the child's interest, makes various cartoon shapes, but basically, its main body is only two parts of straight pipe section and curved corrugated pipe section, when we suck, the old straw is very smooth, but when we pause sucking and move the mouth, the liquid remaining in the straw will flow back to the original bottle, which is unbearable for those who pay attention to cleaning, especially when more than two straws drink a bottle of beverage, which is more uncomfortable.

[0003] In order to solve the problem that the liquid remaining in the straw flows back to the original bottle, the current technical scheme is mostly to design a check valve device on the pipe body, and the existing check valve device not only has various structures, but also has a complex structure, and manufacturers will not adopt it for actual use in order to reduce production cost. SUMMARY

[0004] The utility model discloses a purpose at: design integrated check valve straw, with check valve function, no obstacle when sucking forward, liquid does not backflow when stopping sucking, is suitable for weak constitution crowd such as old people, infants, patients and the occasion of many people drinking together.

[0005] The technical solution of the utility model is: integrated check valve straw, including straw main part, its characterized in that: in the forming process of straw main part, check valve section is formed simultaneously, and the straw main part is divided into long straight pipe section, short straight pipe section;The check valve section includes check valve pipe and valve piece, one end of the check valve pipe is communicated with the long straight pipe section, the other end of the check valve pipe is communicated with the short straight pipe section, the pipe diameter of the check valve pipe is swollen, more than three balance feet are symmetrically injection molded on the inner wall surface of the check valve pipe, the valve piece is arranged in the cavity of the check valve pipe and communicated with the long straight pipe section, and the valve piece is in cooperation with the pipe wall of the check valve pipe and forms annular segmented liquid passage.

[0006] Further, the straw main part includes long straight pipe section, corrugated pipe section and short straight pipe section, and the long straight pipe section, the corrugated pipe section and the short straight pipe section are sequentially and synchronously formed in the production process, and the check valve section is integrally formed in the forming process between the long straight pipe section and the corrugated pipe section.

[0007] Further, the check valve section includes check valve pipe and valve piece, one end of the check valve pipe is communicated with the long straight pipe section, the other end of the check valve pipe is communicated with the corrugated pipe section, the pipe diameter of the check valve pipe is swollen, more than three balance feet are symmetrically injection molded on the inner wall surface of the check valve pipe, the valve piece is arranged in the cavity of the check valve pipe and communicated with the long straight pipe section, and the valve piece is in cooperation with the pipe wall of the check valve pipe and forms annular segmented liquid passage.

[0008] Further, the valve piece is conical, and the valve piece slides to seal the tube cavity of the long straight pipe section.

[0009] The utility model discloses the advantages are:

[0010] 1, the valve piece is thin, and the material is less, and the cost is low.

[0011] 2, the shape and size of the balance foot are utilized, the balance of the valve piece in the tube cavity of the check pipe is kept, the valve piece does not reverse, and can move smoothly.

[0012] 3, the conical valve piece seals the check, and realizes the backfall of blocking liquid.

[0013] 4, the gap between the three or more balance feet and the tube cavity determines that the valve piece is centered.

[0014] 5, the annular segmented liquid passage guarantees the natural unobstructed when sucking.

[0015] 6, the long straight pipe section is used to insert into the container, the corrugated pipe section is convenient to bend, and the short straight pipe section is beneficial to suck. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure sectional view of the utility model.

[0017] In the drawing: 1 long straight pipe section, 2 corrugated pipe section, 3 short straight pipe section, 4 check section, 5 check pipe, 6 valve piece, 7 balance foot, 8 liquid passage. DETAILED DESCRIPTION

[0018] The technical scheme of the utility model will be further explained below in combination with the drawings, but can not be understood as the limitation of the technical scheme.

[0019] As Figure 1 Shown, one-piece check suction tube, including straw main part, its characterized in that: in the straw main part forming process simultaneously one-piece check section 4, divide the straw main body into long straight pipe section 1, short straight pipe section 3;The check section 4 includes check pipe 5 and valve piece 6, one end of check pipe 5 is communicated long straight pipe section 1, the other end of check pipe 5 is communicated short straight pipe section 3, the pipe diameter of check pipe 5 is bulging, and three or more balance feet 7 are symmetrically injection molded on the inner wall surface of check pipe 5, the valve piece 6 is arranged in the tube cavity of check pipe 5 and is communicated long straight pipe section 1, and the valve piece 6 is formed with the annular segmented liquid passage 8 with the pipe wall of check pipe 5 under the cooperation of balance foot 7.

[0020] Further, the straw body comprises a long straight tube section 1, a corrugated tube section 2, and a short straight tube section 3, which are sequentially and synchronously formed in the production process, and a check valve 4 is integrally formed between the long straight tube section 1 and the corrugated tube section 2 in the forming process.

[0021] Further, the check valve 4 comprises a check tube 5 and a valve piece 6, one end of the check tube 5 communicates with the long straight tube section 1, the other end of the check tube 5 communicates with the corrugated tube section 2, the tube diameter of the check tube 5 is bulging, three or more than three balance feet 7 are symmetrically injection molded on the inner wall surface of the check tube 5, the valve piece 6 is arranged in the lumen of the check tube 5 which leads to the long straight tube section 1, and the valve piece 6 forms an annular segmented liquid passage 8 with the wall of the check tube 5 under the cooperation of the balance feet 7.

[0022] Further, the valve piece 6 is conical, and the valve piece 6 seals the lumen of the long straight tube section 1 when it slides to the long straight tube section 1.

[0023] In the production process: the long straight tube section 1 and the short straight tube section 3 are injection molded with the corrugated tube section 2 and the check tube 5 between them, and three or more than three balance feet 7 are symmetrically injection molded on the inner wall surface of the check tube 5 by using the timed rotation of the sizing sleeve tail end; in the conveying process after cutting, the valve piece 6 is injection molded into the corrugated tube section 2 and the check tube 5 from the mouth end of the short straight tube section 3, and when it reaches the lumen of the check tube 5 which leads to the long straight tube section 1, it quickly restores to its original state due to elasticity, that is, the installation is completed. In the use process, when sucking forward, the valve piece 6 leaves a gap between the wall of the check tube 5 due to the three balance feet 7, that is, the annular segmented liquid passage 8 allows the liquid to pass smoothly, and the liquid flows unidirectionally; when not sucking, the backflow of the liquid drives the valve piece 6 to fall down, which just blocks the long straight tube section 1, so that the liquid flow stops.

Claims

1. A unitary non-return drinking straw comprising a straw body characterised in that: In the process of forming the straw body, the check section is integrally formed, the straw body is divided into a long straight pipe section and a short straight pipe section, the check section comprises a check pipe and a valve piece, one end of the check pipe is communicated with the long straight pipe section, the other end of the check pipe is communicated with the short straight pipe section, the diameter of the check pipe is bulged, three or more than three balance feet are symmetrically injected on the inner wall surface of the check pipe, the valve piece is arranged in the lumen of the check pipe which is communicated with the long straight pipe section through the balance feet, and the valve piece and the wall of the check pipe form a segmented liquid passage in the form of a ring under the cooperation of the balance feet.

2. The integrated check straw of claim 1, wherein: The straw body comprises a long straight pipe section, a corrugated pipe section and a short straight pipe section, the long straight pipe section, the corrugated pipe section and the short straight pipe section are synchronously formed in sequence in the production process, and the check section is integrally formed in the process of forming the long straight pipe section and the corrugated pipe section.

3. The integral check straw of claim 2, wherein: The check section comprises a check pipe and a valve piece, one end of the check pipe is communicated with the long straight pipe section, the other end of the check pipe is communicated with the corrugated pipe section, the diameter of the check pipe is bulged, three or more than three balance feet are symmetrically injected on the inner wall surface of the check pipe, the valve piece is arranged in the lumen of the check pipe which is communicated with the long straight pipe section through the balance feet, and the valve piece and the wall of the check pipe form a segmented liquid passage in the form of a ring under the cooperation of the balance feet.

4. The integral check straw of claim 1, wherein: The valve piece is conical, and the valve piece seals the lumen of the long straight pipe section when it slides to the long straight pipe section.

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