Fixing device for weighing paper

Abstract

This utility model belongs to the field of experimental equipment technology, specifically disclosing a fixing device for weighing paper, including a base, a V-shaped upright plate on the base, and a V-shaped groove formed in the inner cavity of the upright plate for placing the weighing paper. A back plate is provided on either side of the upright plate, and a slot is vertically provided on the back plate corresponding to the middle of the groove for placing the folded end of the weighing paper. The bottom of the groove is a flat inclined structure. This utility model can fix the weighing paper symmetrically, and the weighing paper fixed in the fixing device is closed at one end and folded in half at the other end, thus it can gather the sample on it and prevent the sample from scattering, thereby reducing the risk of spillage during sample weighing and transfer. In addition, the bottom of the groove is designed as a flat inclined structure, so that the inside of the groove is lower than the outside, which can also gather the sample on the weighing paper symmetrically, thereby reducing the risk of spillage during sample weighing and transfer.

Description

Technical Field

[0001] This utility model relates to the field of experimental equipment technology, and in particular to a fixing device for weighing paper. Background Technology

[0002] Weighing paper is an essential tool in laboratories for weighing quantitative amounts of solid reagents or samples. It is typically a square piece of thin paper with smooth sides, usually folded in half before use to prevent spillage. However, in practice, because the weight of the weighing paper and the reagents being weighed is usually small, spillage can easily occur during the process of weighing on a balance, removing the paper from the balance, and transferring it to a laboratory vessel. This can lead to inaccurate weighing data and also contaminate the work surface.

[0003] To further understand the prior art, a search revealed that Chinese patent CN221037602U discloses a weighing paper holder, including a first U-shaped frame, a second U-shaped frame hinged to the first U-shaped frame, a first clamping part installed on the first U-shaped frame, and a second clamping part installed on the second U-shaped frame. The first clamping part is provided with a clamping groove, and the second clamping part is provided with a clamping protrusion. The clamping groove and the clamping protrusion cooperate to symmetrically weigh and clamp the paper. The first U-shaped frame is provided with a first gripping part, and the second U-shaped frame is provided with a second gripping part.

[0004] Analysis revealed that the weighing paper holder requires opening and closing the clamping part during use, which is cumbersome. Furthermore, excessive force during opening and closing of the clamping part, which can cause airflow or improper operation, can easily lead to sample spillage. Utility Model Content

[0005] To address the technical problem of sample spillage during the transfer of weighing paper in existing technologies, this invention provides a device for fixing weighing paper.

[0006] The technical solution adopted by this utility model is: a fixing device for weighing paper, including a base, a V-shaped upright plate on the base, a V-shaped groove formed in the inner cavity of the upright plate, the groove being used to place the weighing paper, a back plate on any side of the upright plate, and a slot vertically arranged in the middle of the back plate corresponding to the groove, the slot being used to place the folded end of the weighing paper.

[0007] Furthermore, the bottom of the groove has a flat, sloping structure, with the side of the groove bottom near the back plate being lower than the side of the groove bottom near the opening.

[0008] Furthermore, the top of the card slot is provided with a V-shaped flare.

[0009] Furthermore, a reinforcing backplate is installed between the upright plate and the base.

[0010] Furthermore, the base, uprights, back panel, and reinforced back panel are made of plastic.

[0011] Furthermore, the base, uprights, back panel, and reinforced back panel are made of lightweight plastic.

[0012] Furthermore, the base, uprights, and reinforcing plates are made of PVC plastic.

[0013] Furthermore, the base, uprights, back panel, and reinforced back panel are all made from a single piece of molding.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model can fix the weighing paper, and the weighing paper fixed in the fixing device is closed at one end and folded in half at the other end. Therefore, it can gather the sample on it and prevent the sample from scattering, thereby reducing the risk of spillage during sample weighing and transfer.

[0016] 2. The bottom of the groove is designed as a flat inclined structure, which makes the inside of the groove lower than the outside, which can gather the sample on the measuring paper and reduce the risk of spillage during sample transfer. Attached Figure Description

[0017] Figure 1 This is the front view of this utility model.

[0018] Figure 2 yes Figure 1 Sectional view of AA.

[0019] Figure 3 This is a perspective view of the present invention.

[0020] Figure 4 This is a schematic diagram of the installation of the fixing device and the weighing paper of this utility model.

[0021] The diagram is marked as follows:

[0022] 1. Base;

[0023] 2. Vertical plate; 201. Groove;

[0024] 3. Back panel; 301. Card slot; 302. Flared opening;

[0025] 4. Reinforce the back panel;

[0026] 5. Weighing paper; 501 gathering end; 502 unfolding end. Detailed Implementation

[0027] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0029] The following is in conjunction with the appendix Figures 1-3 The present invention will be further described below.

[0030] Example

[0031] In view of the technical problems existing in the background art, the present invention provides a fixing device for weighing paper.

[0032] In the specific technical solution, refer to Figure 1 , Figure 3 and Figure 4 The fixing device includes a base 1, which serves as a support and installation device. A V-shaped upright plate 2 is provided on the base 1. The inner cavity of the upright plate 2 forms a V-shaped groove 201, which is used to place the weighing paper. A back plate 3 is provided on either side of the upright plate 2, and the other side is an opening. A slot 301 is vertically provided on the back plate 3 corresponding to the middle of the groove 201. The top of the slot 301 penetrates through the back plate and is used to place the folded end 501 of the weighing paper 5.

[0033] Working principle: Before weighing the sample, fold the weighing paper 5 in half and install one end of the folded weighing paper into the slot 301 on the upright plate 2. This end is the gathering end 501 of the weighing paper. The slot 301 limits the gathering end 501 of the weighing paper and makes it tightly closed. Then unfold the other end of the weighing paper along the inner wall of the groove 201. This end is the unfolded end 502 of the weighing paper, thus completing the fixation of the weighing paper. When weighing the sample, place the fixed device with the weighing paper installed on the balance, adjust the balance to zero, pour the sample onto the weighing paper 5, and after weighing the sample of the required mass, hold the fixed device and move the sample to the side of the experimental vessel. Pour the sample out into the container along the unfolded end 502, and then slowly pull out and open the weighing paper 5 along the slot 301 to pour out any remaining medicine at the gathering end 501 of the weighing paper 5.

[0034] As can be seen from the above structure and working principle, this utility model can fix the weighing paper, and the weighing paper fixed in the fixing device is closed at one end and folded in half at the other end. Therefore, it can gather the sample on it, avoid the sample from falling, and reduce the risk of spillage during sample weighing and transfer.

[0035] To further reduce the risk of spillage during sample weighing and transfer, refer to Figure 2 In this embodiment, the bottom of the groove 201 is designed as a flat, sloping structure, and the side of the bottom of the groove 201 near the back plate 3 is lower than the side of the bottom of the groove 201 near the opening. This design makes the groove 201 lower inside and higher outside, which can also help to gather the sample on the symmetrical measurement paper, thereby reducing the risk of spillage during sample transfer.

[0036] To facilitate smoother installation of the folded weighing paper into the slot 301, refer to... Figure 1 and Figure 3 In this embodiment, a V-shaped flare 302 is provided at the top of the slot 301, which can reduce the difficulty of installation and improve the installation efficiency.

[0037] To improve the strength of the fixing device, refer to Figure 3 Therefore, a reinforcing back plate 4 is also provided between the upright plate 2 and the base 1.

[0038] When selecting materials for the base 1, upright plate 2, back plate 3, and reinforcing back plate 4, factors such as quality, strength, and corrosion resistance must be considered. Therefore, PVC plastic is the preferred material. Furthermore, the base 1, upright plate 2, back plate 3, and reinforcing back plate 4 are manufactured as a single piece.

[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for fixing paper for weighing, characterized in that, Includes a base (1), on which a V-shaped upright plate (2) is provided. The inner cavity of the upright plate (2) forms a V-shaped groove (201). The groove (201) is used to place the weighing paper (5). A back plate (3) is provided on any side of the upright plate (2). A slot (301) is vertically provided on the back plate (3) corresponding to the middle of the groove (201). The slot (301) is used to place the folded end (501) of the weighing paper (5).

2. The fixing device for weighing paper as described in claim 1, characterized in that, The bottom of the groove (201) is a flat inclined structure, and the side of the bottom of the groove (201) near the back plate (3) is lower than the side of the bottom of the groove (201) near the opening.

3. The fixing device for weighing paper as described in claim 1, characterized in that, The top of the card slot (301) is provided with a V-shaped flare (302).

4. The fixing device for weighing paper as described in claim 1, characterized in that, A reinforcing back plate (4) is also provided between the upright plate (2) and the base (1).

5. The fixing device for weighing paper as described in claim 4, characterized in that, The base (1), upright plate (2), back plate (3) and reinforcing back plate (4) are made of plastic.

6. The fixing device for weighing paper as described in claim 5, characterized in that, The base (1), upright plate (2), back plate (3) and reinforced back plate (4) are made of lightweight plastic.

7. The fixing device for weighing paper as described in claim 6, characterized in that, The base (1), upright plate (2), back plate (3) and reinforcing back plate (4) are made of PVC plastic.

8. The fixing device for weighing paper as described in claim 7, characterized in that, The base (1), upright plate (2), back plate (3) and reinforced back plate (4) are made of one piece.

Images