PHA material straw
By designing a PHA material straw and utilizing threaded connections and the deformation of an elastic valve, the straw can switch between direct suction and filtration, solving the problem that traditional straws cannot simultaneously satisfy both direct suction and filtration, and providing high-efficiency filtration and environmental performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LISHANG (GUANGZHOU) SUPPLY CHAIN MANAGEMENT CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional straws cannot simultaneously satisfy both direct suction and filtration functions, and they also suffer from high production costs, difficult cleaning, and easy clogging of the filter.
Design a PHA material straw that achieves switching between direct suction and filtration functions through the threaded connection between the outer and inner straws and the deformation of the elastic valve tube. The upper and lower connecting rings squeeze the elastic valve tube to control its switching between vertical sealing and bending filtration states. Combined with a limiting ring and a sealing head, structural stability and filtration accuracy are ensured.
It enables flexible switching between direct suction and filtration, has high-efficiency filtration capabilities, adjustable filtration fineness, simple structure, and uses biodegradable materials to reduce plastic pollution.
Smart Images

Figure CN224125677U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of straws, and in particular to a straw made of PHA material. Background Technology
[0002] Most straws on the market are designed for a single function, either only having the function of direct suction or achieving the function of filtration through a built-in fixed filter, which cannot meet the needs of both uses at the same time.
[0003] Traditional filter straws typically use metal or plastic filter structures, which not only increase production costs and assembly complexity but also lead to problems such as difficult cleaning and easy clogging of the filter. Meanwhile, ordinary straight straws lack the filtering ability when handling beverages containing solid ingredients such as fruit pieces or tapioca pearls, resulting in a poor user experience.
[0004] To address the aforementioned issues, this patent proposes a novel straw solution that integrates puncture, direct suction, and adjustable filtration, while also possessing environmental friendliness and structural stability. Utility Model Content
[0005] The main purpose of this invention is to propose a PHA material straw, which aims to solve the problem that traditional filter straws cannot simultaneously meet the dual needs of direct suction and filtration.
[0006] To address the aforementioned issues, this utility model proposes a PHA material straw, comprising an outer straw, an inner straw connected internally to the upper end of the outer straw, an upper connecting ring at the lower end of the outer straw, a plurality of elastic valve tubes connected to the lower end of the upper connecting ring, a lower connecting ring at the lower end of the plurality of elastic valve tubes, and a puncture suction head with an inverted conical shape at the lower end of the lower connecting ring.
[0007] Preferably, a limiting ring is connected to the upper side of the inner suction tube, and a connecting sealing tube is connected to the upper end of the upper connecting ring. The connecting sealing tube is inserted into the lower end of the outer suction tube and fits tightly against the outer wall of the inner suction tube.
[0008] Preferably, an upper connecting frame is connected to the lower end of the inner suction tube, a connecting rod is connected to the center of the lower end of the upper connecting frame, and a lower connecting frame is connected to the lower end of the connecting rod.
[0009] Preferably, the lower connecting frame is externally connected to a switching tube head, which is connected to the upper end of the puncture suction head and slidably connected inside the lower connecting ring.
[0010] Preferably, the upper end of the lower connecting ring is connected to limit posts on both the left and right sides, and the two limit posts are located outside the left and right ends of the on / off tube head, respectively, and inside the multiple elastic valve tubes.
[0011] Preferably, a sealing head is connected to the upper side between the two limiting posts, and the sealing head is slidably connected to the outside of the connecting rod and locked inside the upper end of the switching pipe.
[0012] Beneficial effects:
[0013] 1. This utility model achieves the switching between direct suction and filtration functions through the threaded connection between the outer suction tube and the inner suction tube and the deformation control of the elastic valve tube. When direct suction is performed, the elastic valve tube fits tightly to form a sealed connection straight tube. When filtration is performed, the elastic valve tube bends to form a filtration gap. The structure is simple and the functions are diverse.
[0014] 2. This utility model utilizes the upper and lower connecting rings to squeeze or release the elastic valve tube, allowing it to switch between a vertical sealing state and a curved filtration state, thus achieving high-efficiency filtration without an additional filter screen. At the same time, the filtration fineness can be controlled by adjusting the thread.
[0015] 3. The inner suction tube of this utility model moves the open and close tube head up and down through the connecting rod. During direct suction, the puncture suction head disengages from the lower connecting ring and connects the channel. During filtration suction, the open and close tube head is blocked by the sealing head, and suction is only performed through the gap of the elastic valve tube, ensuring the accuracy and sealing of mode switching.
[0016] 4. The limiting ring of this utility model prevents the inner suction tube from being excessively rotated out, causing the on / off tube head to detach from the lower connecting ring. The limiting post and the sealing head restrict the movement range of the on / off tube head, ensuring structural stability.
[0017] 5. The straw of this utility model is made of biodegradable PHA material, which combines the flexibility of the elastic valve with the hardness of the puncture tip, thus meeting both functional requirements and environmental protection requirements and reducing plastic pollution.
[0018] 6. This utility model controls the bending degree of the elastic valve tube by rotating the inner suction tube, dynamically adjusting the size of the filter gap, and realizing continuous adjustment from coarse filtration to fine filtration to meet the filtration needs of different beverages or particulate matter. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a three-dimensional structural diagram of the straw in the filtering state of this utility model;
[0021] Figure 2 This is a three-dimensional structural diagram of the straw in the direct suction state of this utility model;
[0022] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the straw of this utility model;
[0023] Figure 4 For the present utility model Figure 3 Enlarged view of point A in the middle;
[0024] Figure 5 For the present utility model Figure 3 Enlarged view of point B in the middle;
[0025] Figure 6 This is a schematic diagram of the limiting post connection structure of this utility model.
[0026] The annotations in the attached figures are explained as follows:
[0027] 1. External suction tube; 2. Internal suction tube; 3. Upper connecting ring; 4. Elastic valve tube; 5. Lower connecting ring; 6. Puncture suction tip; 7. Limiting ring; 8. Connecting sealing tube; 9. Upper connecting frame; 10. Connecting rod; 11. Lower connecting frame; 12. On / off tube head; 13. Limiting post; 14. Sealing head. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] To achieve the above-mentioned utility model objectives, such as Figures 1-6 As shown, this utility model provides a PHA material straw, including an outer straw 1, an inner straw 2 internally threaded to the upper end of the outer straw 1, an upper connecting ring 3 at the lower end of the outer straw 1, multiple elastic valve tubes 4 connected to the lower end of the upper connecting ring 3, a lower connecting ring 5 connected to the lower end of the multiple elastic valve tubes 4, and a piercing suction head 6 with an inverted conical shape at the lower end of the lower connecting ring 5. The straw is made entirely of PHA material and is inserted into the container through the lower end of the piercing suction head 6. The straw can be used for both filtering and direct suction. When the inner straw 2 is screwed to the lowest side inside the outer straw 1, the puncture tip 6 separates from the lower connecting ring 5. The lower connecting ring 5 is not pushed upward by the puncture tip 6, so that the multiple elastic valve tubes 4 are vertically aligned and tightly fitted together, forming a sealed connecting straight tube with the upper connecting ring 3 and the lower connecting ring 5. At the same time, the puncture tip 6 communicates with the inside of the connecting straight tube, allowing the inner straw 2 to communicate with the inside of the container through the connecting straight tube and the puncture tip 6, so that the straw can be directly sucked through the puncture tip 6, thereby realizing direct suction of the straw.
[0030] Furthermore, when the inner straw 2 spirals upward inside the outer straw 1 and drives the puncture head 6 to push the lower connecting ring 5 upward, multiple elastic valve tubes 4 bend outward under the pressure of the upper connecting ring 3 and the lower connecting ring 5. A filter gap is formed between the multiple bent elastic valve tubes 4, so that the multiple elastic valve tubes 4, the upper connecting ring 3 and the lower connecting ring 5 form an olive-shaped tube with a filter gap. At the same time, the puncture head 6 is not connected to the inside of the olive-shaped tube, allowing the inner straw 2 to communicate with the inside of the container through the olive-shaped tube. This allows the straw to suck through the olive-shaped tube and filter the sucked food through the filter gap of the olive-shaped tube, thereby achieving the filtering and sucking of the straw.
[0031] Preferably, a limiting ring 7 is connected to the upper side of the inner suction tube 2, and a connecting sealing tube 8 is connected to the upper end of the upper connecting ring 3. The connecting sealing tube 8 is inserted into the lower end of the outer suction tube 1 and fits tightly against the outer wall of the inner suction tube 2. An upper connecting frame 9 is connected to the lower end of the inner suction tube 2. A connecting rod 10 is connected to the center of the lower end of the upper connecting frame 9. A lower connecting frame 11 is connected to the lower end of the connecting rod 10. A switching tube head 12 is connected to the outside of the lower connecting frame 11. The switching tube head 12 is connected to the upper end of the puncture suction head 6 and is slidably connected inside the lower connecting ring 5. When the inner suction tube 2 is screwed to the lowest side inside the outer suction tube 1, the inner suction tube 2 drives the switching tube head through the upper connecting frame 9, the connecting rod 10 and the lower connecting frame 11. 12 slides downward inside the lower connecting ring 5 and drives the puncture suction head 6 to separate from the lower connecting ring 5 through the switch tube head 12. At this time, since the lower connecting ring 5 is not pushed upward by the puncture suction head 6, the multiple elastic valve tubes 4 straighten under their own elasticity, so that the multiple elastic valve tubes 4 are in a vertical state and fit tightly together to form a sealed connecting straight tube. At the same time, the puncture suction head 6 is connected to the connecting straight tube through the switch tube head 12, and the position of the switch tube head 12 inside the lower connecting ring 5 is restricted by the limiting ring 7 to prevent the inner suction tube 2 from being screwed downward too long, causing the switch tube head 12 to slide completely out of the lower connecting ring 5, ensuring that the suction tube can be sucked through the lower end of the puncture suction head 6.
[0032] Preferably, the lower connecting ring 5 has limiting posts 13 connected to both the left and right sides of its upper end. The two limiting posts 13 are located outside the left and right ends of the switching tube head 12 and inside the multiple elastic valve tubes 4. A sealing head 14 is connected to the upper side between the two limiting posts 13. The sealing head 14 is slidably connected to the outside of the connecting rod 10 and is locked inside the upper end of the switching tube head 12. When the inner suction tube 2 is screwed upward inside the outer suction tube 1 and drives the puncture suction head 6 to push the lower connecting ring 5 upward, the inner suction tube 2 pulls the switching tube head 12 upward through the upper connecting frame 9, the connecting rod 10 and the lower connecting frame 11, and pulls the puncture suction head 6 upward through the switching tube head 12, so that the puncture suction head 6 fits against the lower connecting ring 5. At this time, if the inner suction tube 2 is screwed upward, the puncture suction head 6 will form an upward pushing force on the lower connecting ring 5, so that the lower connecting ring 5 is close to the upper connecting ring 3 and located in the upper connecting ring 5. Multiple elastic valve tubes 4 between ring 3 and lower connecting ring 5 deform and bend outward under the pressure of upper connecting ring 3 and lower connecting ring 5, and separate to create filter gaps, thus forming an olive-shaped tube with upper connecting ring 3 and lower connecting ring 5. At the same time, the on / off tube head 12 slides from inside the lower connecting ring 5 to the lower side inside between multiple elastic valve tubes 4, and is locked to the lower end of the sealing head 14, so that the upper end of the on / off tube head 12 is blocked by the sealing head 14, blocking the communication between the on / off tube head 12 and the olive-shaped tube, so that the straw can only suck through the olive-shaped tube, and can filter the sucked items through the filter gaps on the outer wall of the olive-shaped tube. The filter fineness can be adjusted by adjusting the size of the filter gaps, and the size of the filter gaps can be adjusted by the length of the inner straw 2 spiraling upward inside the outer straw 1, so that the straw can suck with different filter fineness.
[0033] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.
Claims
1. A straw made of PHA material, characterized in that, It includes an external suction tube (1), an internal suction tube (2) is threaded to the upper end of the external suction tube (1), an upper connecting ring (3) is provided at the lower end of the external suction tube (1), a plurality of elastic valve tubes (4) are connected to the lower end of the upper connecting ring (3), a lower connecting ring (5) is connected to the lower end of the plurality of elastic valve tubes (4), and a puncture suction head (6) with an inverted cone shape is provided at the lower end of the lower connecting ring (5).
2. The PHA material straw of claim 1, wherein The upper side of the inner suction tube (2) is connected to a limiting ring (7), and the upper end of the upper connecting ring (3) is connected to a connecting sealing tube (8). The connecting sealing tube (8) is inserted into the lower end of the outer suction tube (1) and fits tightly against the outer wall of the inner suction tube (2).
3. The PHA material straw of claim 2, wherein The lower end of the inner suction tube (2) is connected to an upper connecting frame (9), the lower center of the upper connecting frame (9) is connected to a connecting rod (10), and the lower end of the connecting rod (10) is connected to a lower connecting frame (11).
4. The PHA material straw of claim 3, wherein The lower connecting frame (11) is externally connected to a switching tube head (12), and the switching tube head (12) is connected to the upper end of the puncture suction head (6) and slidably connected inside the lower connecting ring (5).
5. The PHA material straw of claim 4, wherein The lower connecting ring (5) is connected to limit posts (13) on both the left and right sides of the upper end. The two limit posts (13) are located outside the left and right ends of the on / off tube head (12) and inside the multiple elastic valve tubes (4).
6. The PHA material straw of claim 5, wherein A sealing head (14) is connected on the upper side between the two limiting posts (13), and the sealing head (14) is slidably connected to the outside of the connecting rod (10) and snapped into the inside of the upper end of the switch pipe head (12).