Bernoulli mouth straw
By designing the Beronley mouth straw, the use of the principles of Beronley's fierce mechanics to reduce the area of the fluid contact area, solve the problem of lack of structural design when the existing straws are absorbed, and achieve a more convenient absorbing effect.
Patent Information
- Application Number
- CN202421291284.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-06-07
AI Technical Summary
When the existing straws absorb liquid, the structural design is insufficient, resulting in poor absorption difficulty and ineffectively meeting the absorption needs of different liquids.
A Bernoulli mouth straw is designed, which consists of a straight tube and a Bernoulli mouth. The Bernoulli mouth includes a gradient part and a mouth part. The gradient part is a right truncated cone structure, and the mouth part is a circular tube structure. By reducing The fluid contact area uses the Bernoulli fluid mechanics principle to reduce pressure, making it easier to absorb liquid.
By changing the end structure of the straw to reduce the fluid contact area, the pressure is reduced, making the suction process more convenient and suitable for the suction needs of different liquids.
Smart Images
Figure CN222382967U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a straw, in particular to a Bernoulli mouth straw. Background Art
[0002] Straws are very common in daily life and are often used in dairy products or beverages. Currently, commonly used straws include plastic straws, glass straws, paper straws and other materials. However, no matter which material the straw is made of, its structure is similar. They are all improvements on the straight-through tube, such as adding a corrugated tube to change the path of the straw. These improvements are not aimed at improving the difficulty of sucking. Summary of the invention
[0003] The problem to be solved by the present invention is to propose an improved solution or a replacement solution for the above-mentioned shortcomings of the prior art, especially an improved solution or a replacement solution that is easy to absorb.
[0004] In order to solve the above problems, the solution adopted by the utility model is as follows: a Bernoulli mouth straw, characterized in that the Bernoulli mouth straw consists of a straight tube and a Bernoulli mouth, the Bernoulli mouth includes a gradient portion and a mouth, the gradient portion is located in the middle connecting the straight tube and the mouth; the gradient portion is a right circular frustum structure, and the mouth is a circular tube structure.
[0005] Furthermore, the Bernoulli mouth straw is characterized in that the height of the mouth is smaller than the height of the gradient portion.
[0006] Furthermore, the Bernoulli mouth straw is characterized in that the mouth is provided with a flange structure.
[0007] Furthermore, the Bernoulli mouth straw is characterized in that the ratio of the large inner diameter of the gradient portion, i.e., the inner diameter of the straight tube, to the small inner diameter of the gradient portion, i.e., the inner diameter of the mouth, is 5:3.5.
[0008] Furthermore, the Bernoulli mouth straw is characterized in that the ratio of the height of the gradient portion to the height of the mouth portion is 3:2.
[0009] The technical effects of the utility model are as follows: The Bernoulli mouth straw of the present design changes the structure of the end of the straw, and according to the Bernoulli fluid mechanics principle, the purpose of reducing pressure is achieved by reducing the fluid contact area. That is, the speed of the liquid passing through different paths in the same time is different, so different pressures will be generated. Because the greater the speed, the smaller the pressure, and the smaller the speed, the greater the pressure, the pressure is equal to the pressure multiplied by the contact area. The Bernoulli mouth of the present design reduces the contact area, so the pressure becomes smaller, but the contact area of the straight-through tube part of the straw does not become smaller, so the pressure of the straight-through tube part does not become smaller, which produces unequal pressures up and down. In this way, the force required to be provided at the Bernoulli mouth is reduced, which is more convenient for suction. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 Schematic diagram of the Bernoulli pipette.
[0011] Figure 2 Schematic diagram of the cross section of the Bernoulli pipette.
[0012] Among them, 1 is a straight-through pipe, 2 is a Bernoulli mouth, 21 is a gradient part, 22 is a mouth part, and 23 is a flange structure. DETAILED DESCRIPTION
[0013] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0014] Embodiment: A Bernoulli mouth straw, the Bernoulli mouth straw consists of a straight tube and a Bernoulli mouth, the height of the straight tube is 190 mm, the height of the Bernoulli mouth is 10 mm, the Bernoulli mouth includes a gradient portion and a mouth, the gradient portion is located in the middle connecting the straight tube and the mouth; the gradient portion is a right circular frustum structure, and the mouth is a circular tube structure. The mouth height is 4 mm, and the gradient portion height is 6 mm. The mouth is provided with a flanging structure. The large inner diameter of the gradient portion, i.e., the inner diameter of the straight tube, is 5 mm, and the small inner diameter of the gradient portion, i.e., the inner diameter of the mouth, is 3.5 mm.
[0015] Comparative Example: A straw is a straight straw with an inner diameter of 5 mm and a height of 200 mm.
[0016] The Bernoulli mouth development diagram of this embodiment includes a rectangular diagram of the mouth portion and a truncated cone side development diagram of the gradient portion.
[0017] The expanded area of the side of the truncated cone: S1=1 / 2*2πr2*(a+l)-1 / 2*2πr1*a=π(r1+r2)l=π(r1+r2)√[(r2-r1)^2+h^2]
[0018] Mouth expansion area: S2=r1*H
[0019] Bernoulli mouth expansion area: S Bernoulli = S1 + S2
[0020] Among them, the radii of the upper and lower bases of the frustum are: r1, r2, the height of the frustum is: h, and the height of the mouth is H.
[0021] The straight-through straw of the comparative example and the Bernoussi straw of the example are in a straight-through pipe with a height of 10 mm, and the unfolded area S of the straight-through straw is (H+h)*2πr2.
[0022] It can be seen that S Straight Straw is significantly larger than S Bernoulli.
Claims
1. A Bernoulli mouth straw, characterized in that: The Bernoulli mouth straw consists of a straight tube and a Bernoulli mouth. The Bernoulli mouth includes a gradient portion and a mouth. The gradient portion is located in the middle and connects the straight tube and the mouth. The gradient portion is a right circular frustum structure, and the mouth is a circular tube structure.
2. The Bernoulli mouthpiece according to claim 1, characterized in that: The height of the mouth is smaller than the height of the gradient portion.
3. The Bernoulli mouthpiece according to claim 1, characterized in that: The mouth is provided with a flange structure.
4. The Bernoulli mouthpiece according to claim 1, characterized in that: The ratio of the large inner diameter of the gradient part, i.e., the inner diameter of the straight-through pipe, to the small inner diameter of the gradient part, i.e., the inner diameter of the mouth, is 5:3.
5.
5. The Bernoulli mouthpiece according to claim 1, characterized in that: The ratio of the height of the gradual change portion to the height of the mouth portion is 3:2.