Triangular weighing paper with protective wings

Abstract

According to the triangular weighing paper with the protective wings, the bottom of the weighing paper is an approximate equilateral triangle, two sides of the approximate equilateral triangle are respectively provided with a high protective wing, and the other side of the approximate equilateral triangle is provided with a low protective wing. The three protective wings are folded towards the same side of the paper, and folding lines form three sides of an approximate equilateral triangle. An outlet is formed in the included angle between one high wing and the corresponding low wing, and the length of the outlet is 1-10 mm. The high wings are arc-shaped, and the low wings are arc-shaped, trapezoidal and rectangular. The bottom surface of the weighing paper provided by the utility model is similar to an equilateral triangle, and the whole weighing paper is similar to a triangular pyramid, so that the stability of the weighing paper can be enhanced, the bottom surface of the weighing paper is not easy to deform, and meanwhile, the three protective wings form a fence, so that a weighed sample is protected, and the sample is prevented from scattering and splashing. And the two high protective wings play a role of a handle, so that the weighing paper can be conveniently taken out from the balance chamber of the analytical balance. The outlet facilitates transfer of the sample into a receiving container.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental supplies, in particular to a triangular weighing paper with protective wings. Background Art

[0002] Weighing paper, also known as balance paper or balance weighing paper, is paper used specifically when weighing solid samples on an analytical balance. When weighing on an analytical balance, place the weighing paper on the balance pan, press the tare key, load the sample onto the weighing paper, read the sample mass, and transfer it to a receiving container. This completes the weighing process.

[0003] Using weighing paper for weighing can prevent the sample from contaminating and damaging the balance pan; because the surface of weighing paper is smooth, the sample is not easy to remain, which can avoid the loss of sample during the weighing process; because weighing paper is generally disposable, it can also avoid cross-contamination between samples.

[0004] Generally, weighing paper is square and sheet-shaped. When removing the weighing paper from the balance pan, it is difficult to lift it from the balance pan because the paper is very thin and fits tightly to the balance pan. When lifting the sample gathered in the center of the weighing paper, the paper is very soft and easily bends and deforms, causing the sample to fall. Since the weighing paper has a certain degree of elasticity, the paper is prone to bounce during the lifting process, and powdery and small granular samples are easily splashed and scattered.

[0005] Some experimenters fold the weighing paper so that the four edges of the paper have folded retaining walls, forming a square groove on the paper to facilitate lifting and prevent the sample from spilling out of the weighing paper. The grooved shape of the weighing paper strengthens the bottom surface of the weighing paper to a certain extent and reduces the paper's bounce. However, this type of grooved weighing paper is still unstable. When lifting the weighing paper from the balance pan, the four corners of the weighing paper tend to sink, and the sample is still easy to scatter. This is especially true when weighing a large number of samples. Due to the bounce of the paper, the sample can overflow the retaining wall and splash out of the weighing paper.

[0006] Analytical balances have a weighing chamber, and samples are placed in and removed from the chamber through two doors. Due to the limited size of the doors, the experimenter can only perform weighing operations with one hand, which further increases the difficulty of removing the weighing paper. It is difficult for the experimenter to smoothly remove the sheet or groove-shaped weighing paper loaded with the sample from the chamber. Summary of the Invention

[0007] In order to overcome the above technical problems, the utility model provides a triangular weighing paper with wings, which has the advantages of a stable bottom surface of the weighing paper, can prevent the sample from spilling and splashing, and is convenient for one-handed operation. It is suitable for use with an analytical balance.

[0008] The technical solution of the utility model is as follows:

[0009] Disclosed is a triangular weighing paper with wings. The bottom of the triangular weighing paper with wings is approximately an equilateral triangle. The first and second sides of the approximately equilateral triangle are both provided with high wings, and the high wings are arc-shaped, with straight sides of the arc connected to the first and second sides. The third side is provided with low wings, and the shapes of the low wings include arc, trapezoid and rectangle. The two high wings and one low wing are folded to the same side of the paper, and the fold lines form the three sides of the approximately equilateral triangle, so that the weighing paper forms an approximately three-dimensional triangular pyramid. An outlet is provided at the angle between the second and third sides.

[0010] Furthermore, the outlet length is 1-10 mm.

[0011] Furthermore, the weighing paper material includes sulfuric acid paper and wax paper.

[0012] The bottom surface of the weighing paper proposed by the utility model is an approximate equilateral triangle. The bottom surface of the approximate equilateral triangle and two high wings and one low wing form an approximate triangular pyramid. A notable feature of the triangle and triangular pyramid is good stability. Therefore, the stability of the triangular weighing paper with wings proposed by the utility model is much higher than that of sheet-shaped weighing paper and groove-shaped weighing paper. When the triangular weighing paper with wings is picked up from the balance pan and the sample is transferred into the receiving container, the bottom of the weighing paper can maintain a stable state and is not easy to bend, the sample is not easy to spill, the weighing paper is not easy to bounce, and the sample is not easy to splash and scatter. Even when the sample to be weighed is large and heavy, the bottom surface of the weighing paper still can not be bent or bounced due to the good stability of the triangle and triangular pyramid.

[0013] The weighing paper is equipped with low wings. When weighing, the weighing paper is placed on the balance pan with the outlet facing the experimenter. The experimenter can see through the upper edge of the low wings and observe the situation inside the weighing paper. In addition, the low wings also reduce the amount of raw paper used.

[0014] There is a gap between the two high wings of the weighing paper. When loading the sample into the weighing paper, pass a horn spoon or a thin paper strip through the gap between the two high wings to probe into the weighing paper and load the sample into the bottom of the weighing paper.

[0015] When taking out the sample from the weighing room, the experimenter can place the index finger of his right hand between the two high wings, and pinch the high wings from the outside to the inside with the thumb and middle finger respectively. The weighing paper can be picked up steadily from the balance pan with one hand, which solves the problem that the sheet weighing paper is tightly pressed on the balance pan and is not easy to pick up. The two high wings play the role of "lifting hands".

[0016] After removing the weighing paper from the balance chamber, use your left hand to support the short protective flap and, with both hands, smoothly transfer the weighing paper to the top of the receiving container. Then, pour the sample out of the outlet into the receiving container. The three protective flaps facilitate two-handed control of the weighing paper, ensuring smooth sample transfer. Furthermore, the three protective flaps form a weir to protect the sample from spillage and splashing.

[0017] The outlet is used for transferring the sample. The groove-shaped weighing paper has no outlet, and the retaining wall hinders the pouring out of the sample, which increases the difficulty of pouring out the sample and is easy to spill and lose when pouring out the sample. The weighing paper proposed in the present invention has an outlet design, and a high guard wing and a low guard wing block the two sides of the outlet. The angle between the two guard wings is about 60°. The smaller the angle, the more concentrated the sample is during the pouring process, and the sample is easier to enter the receiving container and is not easy to scatter. For example, when transferring the weighed sample into a small-mouthed container such as a conical flask, because the inner diameter of the bottle mouth is small, the sample is easily spilled outside the conical flask when transferring it into the bottle. The weighing paper proposed in the present invention can complete the quantitative transfer operation more easily, making the experimental results more accurate.

[0018] The triangular weighing paper with wings proposed in this utility model is made of sulfuric acid paper or wax paper. Sulfic acid paper and wax paper are strong and have a specially treated surface that is smooth and moisture-resistant. They can effectively prevent the sample from corroding the balance tray and prevent the sample from sticking to the weighing paper and causing loss, thereby improving weighing accuracy.

[0019] The beneficial effects of the technical solution provided by the utility model include at least:

[0020] (1) The bottom of the weighing paper is approximately an equilateral triangle. The bottom and three wings form an approximate three-dimensional triangular pyramid, which makes the bottom of the weighing paper stable and prevents the sample from spilling and splashing during the transfer process.

[0021] (2) The two high wings act as handles, making it easy to pick up and transfer the weighing paper, and to remove the weighing paper from the balance chamber with one hand.

[0022] (3) The three wings can protect the sample and further prevent the sample from scattering and splashing.

[0023] (4) The weighing paper has an outlet to facilitate the pouring out of the sample. The angle formed by the high and low wings on both sides of the outlet is small, which makes the sample more concentrated when pouring out, easier to enter the receiving container, and not easy to scatter. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a top view of the triangular weighing paper with wings in a flat state according to the present invention.

[0025] Figure 2The utility model is a schematic diagram of the triangular weighing paper with wings in use.

[0026] In the figure: the first side of the triangle (1), the second side of the triangle (2), the high wing (3), the third side of the triangle (4), the low wing (5), and the outlet (6). DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of this application clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example 1

[0030] (1) Weighing paper

[0031] A triangular weighing paper with wings, wherein the bottom of the triangular weighing paper with wings is approximately an equilateral triangle, the first side 1 and the second side 2 of the approximately equilateral triangle are both provided with high wings 3, the high wings 3 are arc-shaped, and the straight sides of the arc are connected to the first side 1 and the second side 2; the third side 4 is provided with low wings 5, and the shape of the low wings 5 ​​is arc-shaped; the two high wings 3 and the one low wing 5 are folded to the same side of the paper, and the fold lines form the three sides of the approximately equilateral triangle, so that the weighing paper forms an approximately three-dimensional triangular pyramid; an outlet 6 is provided at the angle between the second side 2 and the third side 4.

[0032] Furthermore, the length of the outlet 6 is 2 mm.

[0033] Furthermore, the weighing paper is made of sulfuric acid paper.

[0034] (2) Weighing operation

[0035] (a) Open the balance door and place the triangular weighing paper with the wing on the balance pan, with the outlet 6 facing the experimenter. Look through the upper edge of the low wing 5 to observe the situation inside the weighing paper.

[0036] (b) Insert the ox horn spoon containing the sample through the gap between the two high wings and into the weighing paper, and load the sample into the center of the bottom of the weighing paper.

[0037] (c) Close the balance door and read the balance reading.

[0038] (d) Open the balance door, place your right index finger between the two high wings 3, and pinch the high wings 3 from the outside and inside with your thumb and middle finger respectively, and take the weighing paper out of the balance chamber.

[0039] (e) Hold the short wing 5 with your left hand and use both hands to transfer the weighing paper more steadily to the top of the small beaker, and pour the sample into the small beaker from the outlet 6.

[0040] (f) Close the balance door.

[0041] Example 2

[0042] (1) Weighing paper

[0043] A triangular weighing paper with wings, wherein the bottom of the triangular weighing paper with wings is approximately an equilateral triangle, the first side 1 and the second side 2 of the approximately equilateral triangle are both provided with high wings 3, the high wings 3 are arc-shaped, and the straight sides of the arc are connected to the first side 1 and the second side 2; the third side 4 is provided with low wings 5, and the shape of the low wings 5 ​​is trapezoidal; the two high wings 3 and the one low wing 5 are folded to the same side of the paper, and the fold lines form the three sides of the approximately equilateral triangle, so that the weighing paper forms an approximately three-dimensional triangular pyramid; an outlet 6 is provided at the angle between the second side 2 and the third side 4.

[0044] Furthermore, the length of the outlet 6 is 5 mm.

[0045] Furthermore, the weighing paper is made of sulfuric acid paper.

[0046] (2) Weighing operation

[0047] (a) Open the balance door and place the triangular weighing paper with the wing on the balance pan, with the outlet 6 facing the experimenter. Look through the upper edge of the low wing 5 to observe the situation inside the weighing paper.

[0048] (b) Insert the thin paper strip containing the sample through the gap between the two high wings and into the weighing paper, and load the sample into the center of the bottom of the weighing paper.

[0049] (c) Close the balance door and read the balance reading.

[0050] (d) Open the balance door, place your right index finger between the two high wings 3, and pinch the high wings 3 from the outside and inside with your thumb and middle finger respectively, and take the weighing paper out of the balance chamber.

[0051] (e) Hold the short wing 5 with your left hand and use both hands to transfer the weighing paper more steadily to the top of the conical flask, and pour the sample into the conical flask from the outlet 6.

[0052] (f) Close the balance door.

[0053] Example 3

[0054] (1) Weighing paper.

[0055] A triangular weighing paper with wings, wherein the bottom of the triangular weighing paper with wings is approximately an equilateral triangle, the first side 1 and the second side 2 of the approximately equilateral triangle are both provided with high wings 3, the high wings 3 are arc-shaped, and the straight sides of the arc are connected to the first side 1 and the second side 2; the third side 4 is provided with low wings 5, and the shape of the low wings 5 ​​is rectangular; the two high wings 3 and the one low wing 5 are folded to the same side of the paper, and the fold lines form the three sides of the approximately equilateral triangle, so that the weighing paper forms an approximately three-dimensional triangular pyramid; an outlet 6 is provided at the angle between the second side 2 and the third side 4.

[0056] Furthermore, the length of the outlet 6 is 9 mm.

[0057] Furthermore, the weighing paper is made of wax paper.

[0058] (2) Weighing operation

[0059] 6. The weighing operation is the same as in Example 2.

Claims

1. A triangular weighing paper with wings, characterized in that: The bottom of the triangular weighing paper with wings is approximately an equilateral triangle, the first side (1) and the second side (2) of the approximately equilateral triangle are provided with high wings (3), the high wings (3) are arc-shaped, and the straight sides of the arc are connected to the first side (1) and the second side (2); the third side (4) is provided with low wings (5), and the shape of the low wings (5) includes arc, trapezoid and rectangle; the two high wings (3) and the one low wing (5) are folded to the same side of the paper, and the fold lines form three sides of the approximately equilateral triangle, so that the weighing paper forms an approximately three-dimensional triangular pyramid; an outlet (6) is provided at the angle between the second side (2) and the third side (4).

2. The triangular weighing paper with wings according to claim 1, characterized in that: The length of the outlet (6) is 1-10 mm.

3. The triangular weighing paper with wings according to claim 1, characterized in that: The weighing paper materials include sulfuric acid paper and wax paper.

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