WO2021036194A1

WO2021036194A1 - Collapsible straw for easy cleaning

Info

Publication number: WO2021036194A1
Application number: PCT/CN2020/072590
Authority: WO
Inventors: 钱锋
Original assignee: 海宁市丰达电子有限公司
Priority date: 2019-08-28
Filing date: 2020-01-17
Publication date: 2021-03-04
Also published as: CN110384380A

Abstract

A collapsible straw for easy cleaning, the straw being formed by sleeving together several tubes (1) in increasing or decreasing order of diameter, wherein inner and outer tubes can be pulled out or collapsed. A connecting and sealing member (2) is provided at the junction of two adjacent tubes, and is a silica gel component having a hardness between 63 degrees and 70 degrees. The silica gel component comprises a seal section (3) and a truncated cone-shaped connection section (4), and the height ratio of the seal section (3) to the connection section (4) is 1:5-6. A connection end of each tube (1) matches the truncated cone-shaped connection section (4) in shape, and is connected thereto by means of an interference fit. The diameter of the seal section (3) is the same as the outer diameter of an end opening of a tube (1) connected thereto. The straw further comprises a straw tip (5). The straw tip (5) is a silica gel component, and comprises a cylindrical connection section (6) and a straw section (7).

Description

A telescopic straw for easy cleaning

Technical field

The invention relates to a straw, in particular to a telescopic straw that is convenient for cleaning.

Background technique

At present, many catering establishments, such as restaurants, beverage shops, canteens, etc., cannot do without straws when eating liquid food. In order to protect the environment, there are also some reusable retractable straws. The existing retractable straws are all non-detachable structures, which are very inconvenient to clean and cannot be cleaned. There are also some telescopic straws that are equipped with a brush rod, which can be inserted for cleaning, but can not be cleaned to the connecting and sealing structure, resulting in dirt hidden in the connecting and sealing structure. Long-term use will affect the health of the eater.

Summary of the invention

The technical problem to be solved by the present invention is to provide a telescopic straw that is convenient to clean, has a simple structure, can be sealed and sleeved freely through the tension of the silicone part, is convenient to disassemble, can be thoroughly cleaned, and has a more compact overall structure, good sealing and safer It is more environmentally friendly, has a long service life and effectively reduces environmental pollution.

The technical solution adopted by the present invention to solve the technical problem is: a telescopic straw that is convenient to clean, which is formed by sleeved pipes with increasing or decreasing diameters. The inner and outer pipes can be pulled out or retracted. The pipe connection is provided with a connecting seal, the connecting seal is a silicone piece, the silicone piece has a hardness of 63-70 degrees, the silicone piece includes a sealing section and a truncated cone-shaped connecting section, the sealing section and the connecting section The height ratio is 1:5-6, the shape of the connecting end of the tube matches the truncated cone-shaped connecting section, and the connection is made by interference fit, and the diameter of the sealing section is the same as the outer diameter of the connected tube port; it also includes a pipette tip, the The straw head is a silicone piece, including a cylindrical connecting section and a straw section.

As a further improvement, convex ribs are provided on the cylindrical connecting section, which are matched and sleeved with grooves provided on the connected pipe.

As a further improvement, a number of anti-skid grooves are provided at the end of the tube with the smallest diameter.

As a preference, the length of the straw section is 15-19 mm.

As a preference, the number of said tubes is 3 to 5.

The single section of the present invention can also be used as a straw after disassembly, especially a single straw equipped with a straw head.

The present invention can also adjust the number and inner diameter of the tube according to the size of the liquid. For example, 5 sections can be assembled into 4 sections according to the height of the container, the thinnest section is reduced, and the inner diameter of the first section is increased to absorb liquid containing larger particles.

The beneficial effects of the present invention are that the sealing and sleeve connection are realized by the tension of the silicone parts, the disassembly is convenient, the thorough cleaning can be performed, the overall structure is more compact, the sealing performance is better, the service life is safer and more environmentally friendly, the service life is longer, and environmental pollution is effectively reduced. It is simple and convenient to install or disassemble, saving time and effort. The end of the tube with the smallest diameter is provided with a number of anti-skid grooves, which makes it easier for the user to pull out the tube and use it, and the fingers have stress points.

Description of the drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is an enlarged view of A in Fig. 1 of the embodiment of the present invention.

Fig. 3 is a schematic diagram of the structure of a silicone part according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of the structure of a straw head according to an embodiment of the present invention.

Among them, 1. Pipe; 2. Connecting seal; 3. Sealing section; 4. Cone-shaped connecting section; 5. Straw head; 6. Cylindrical connecting section; 7. Straw section; 8. Protruding rib; 9. Anti-slip groove .

The present invention will be further described below in conjunction with the accompanying drawings.

detailed description

Example 1: As shown in Figures 1 to 4, a telescopic straw that is easy to clean is formed by sleeves of 3 tubes 1 arranged in increasing or decreasing diameters. The inner and outer tubes can be pulled out or retracted, with the smallest diameter The end of the tube is provided with seven anti-skid grooves 9, and a connecting seal 2 is provided at the junction of two adjacent tubes. The connecting seal 2 is a food-grade silicone part, and the hardness of the silicone part is 68 degrees. The silicone part includes a sealing section 3 and a truncated cone-shaped connecting section 4, the height ratio of the sealing section 3 to the connecting section 4 is 1:5.3, the shape of the connecting end of the pipe 1 matches the truncated cone-shaped connecting section 4, and the connection is made by interference fit. , The diameter of the sealing section 3 is the same as the outer diameter of the port of the pipe 1 to which it is connected; it also includes a pipette head 5, which is a silicone piece, and includes a cylindrical connecting section 6 and a pipette section 7. The cylindrical connecting section 6 is provided with a convex rib 8 which is matched and sleeved with a groove provided on the connected pipe 1. The length of the straw section 7 is 15-19 mm.

Specific installation and removal methods:

1. Insert the corresponding silicone part Ⅰ into the cone-shaped bottom of the first section of the tube to seal and fix it.

2. Put the sealing silicone part at the bottom of the first section of the tube and put it into the second section of the tube, and insert the corresponding silicone part II into the cone-shaped bottom of the second section of the tube for sealing and fixing.

3. Put the sealing silicone part on the bottom of the second section of the tube and put it into the third section of the tube, and insert the corresponding silicone straw into the bottom of the third section of the tube to seal and fix it.

When disassembling, first remove the silicone straw head, remove the third tube, then remove the silicone part II, remove the second tube, and then remove the silicone part I from the first tube, so that the whole straw can be disassembled. Cleaned.

When in use, the previous section of the tube can be easily pulled out to the bottom of the cone and the next section of the tube. Turn it clockwise to tighten it slightly; when retracting, the first section of the tube rotates slightly counterclockwise, using 290 Push into the second section with a force of about 340 grams. After pushing in the second section, turn the second section of the tube slightly counterclockwise and push it into the third section with a force of 350 grams to 400 grams.

Embodiment 2: Another telescopic straw that is convenient for cleaning is formed by sleeved connection of 4 pipes arranged in increasing or decreasing diameter. The hardness of the silicone part is 65 degrees, and the silicone part includes a sealing section and a truncated cone-shaped connecting section. The height ratio of the sealing section to the connecting section is 1:5, and the others are the same as in Embodiment 1.

Embodiment 3: Another telescopic straw that is convenient for cleaning is formed by sleeved connection of 5 tubes with increasing or decreasing diameters. The hardness of the silicone part is 70 degrees, the silicone part includes a sealing section and a truncated cone-shaped connecting section, the height ratio of the sealing section to the connecting section is 1:6, and the others are the same as in Embodiment 1.

Claims

A telescopic straw that is convenient to clean, is formed by sleeves of a number of pipes (1) arranged in increasing or decreasing diameters. The inner and outer pipes can be pulled out or retracted, and a connecting seal is provided at the junction of two adjacent pipes. (2), characterized in that: the connecting seal (2) is a silicone piece, the hardness of the silicone piece is 63-70 degrees, and the silicone piece includes a sealing section (3) and a truncated cone-shaped connecting section (4), The height ratio of the sealing section (3) to the connecting section (4) is 1:5-6, the shape of the connecting end of the pipe (1) matches the truncated cone-shaped connecting section (4), and the connection is made by interference fit. The diameter of the section (3) is the same as the outer diameter of the connected pipe (1) port; it also includes a pipette head (5), which is a silicone piece, and includes a cylindrical connecting section (6) and a pipette section (7). ).
The telescopic straw for convenient cleaning according to claim 1, characterized in that: the cylindrical connecting section (6) is provided with a convex rib (8), and a groove is provided on the connected pipe (1). Match socket.
The telescopic straw for easy cleaning according to claim 1, characterized in that: the end of the tube (1) with the smallest diameter is provided with a number of anti-skid grooves (9).
The telescopic straw for convenient cleaning according to claim 1, characterized in that the length of the straw section (7) is 15-19 mm.
A telescopic straw for convenient cleaning according to any one of claims 1 to 4, characterized in that the number of said tubes (1) is 3 to 5.