Wrinkled funnel

Abstract

The utility model relates to the technical field of funnels, and discloses a pleated funnel, which comprises a pleated funnel and circular filter paper, a triangular groove is arranged on the pleated funnel, a first glass tube for discharging is fixedly connected to the bottom of the pleated funnel in a penetrating manner, and a second glass tube is arranged at the bottom of the circular filter paper. According to the utility model, the circular filter paper is folded twice to form a fan shape, the circular filter paper is opened from the arc position to form a conical shape (three layers on one side and a single layer on the other side), the tip of the circular filter paper folded into the conical shape is downwards placed in the wrinkled funnel, and then a plurality of gaps exist between the wrinkled funnel and the circular filter paper; the outward pressure brought by the filtrate to the circular filter paper is uniform, the circular filter paper does not deviate towards the gap, the contact surface with air can be ensured, the outflow of the filtrate is facilitated, and the circular filter paper singly matched with the wrinkled funnel is simple in folding method, high in operability and convenient for workers to use.

Description

Technical Field

[0001] The utility model relates to the technical field of funnels, in particular to a pleated funnel. Background Art

[0002] A funnel is a commonly used instrument in the filtration process, typically used in conjunction with round filter paper. It is widely used in fields such as chemistry and pharmacy. For example, many traditional Chinese medicines in the 2020 edition of the Chinese Pharmacopoeia, Part I, require testing for "acid-insoluble ash" under the "Inspection" section, requiring filtration during operation. The basic filtration process is as follows: fold the round filter paper in half twice to form a fan shape (a quarter circle), then fold it open at the fan arc to form a cone (one side with a single layer and the other side with three layers). Place the cone-shaped filter paper in the funnel, wet it with a small amount of the solution to be filtered, and align it with the glass wall of the funnel. Then, slowly pour the filtrate through a glass tube, allowing gravity to drain the solution out the bottom. Due to the solvent's infiltration, the cone-shaped filter paper closely adheres to the glass funnel, with no contact only at the conical base. However, residue easily accumulates at the bottom of the cone-shaped filter paper, resulting in slow filtration (especially in the middle and late stages) and a long filtration process. Utility Model Content

[0003] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a pleated funnel.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solution: a pleated funnel, including a pleated funnel and circular filter paper, wherein the pleated funnel is provided with a triangular groove, and a first glass tube for discharging is fixedly connected through the bottom of the pleated funnel.

[0005] As a further description of the above technical solution:

[0006] The circular filter paper can be placed in the pleated funnel after being folded, and the size of the folded circular filter paper is smaller than the size of the pleated funnel.

[0007] As a further description of the above technical solution:

[0008] The conical filter paper is attached to the pleated port of the pleated funnel.

[0009] As a further description of the above technical solution:

[0010] The cone-shaped filter paper has a single layer on one side and a triple layer on the other side.

[0011] The utility model has the following beneficial effects:

[0012] 1、The utility model discloses a, through the conical filter paper is placed in the wrinkle funnel, then the wrinkle funnel and conical filter paper between the existence of numerous gaps, due to the conical filter paper self -tension's effect, and the filtrate brings to the conical filter paper the pressure that goes out even, and the wrinkle funnel single -out -of -use conical filter paper folding method is simple, and the operability is strong, convenient for staff to use. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 Partial structure diagram of wrinkle funnel Figure 1 ;

[0014] Figure 2 Partial structure diagram of wrinkle funnel Figure 2 ;

[0015] Figure 3 The wrinkle funnel of the utility model is merged state schematic view.

[0016] Legend:

[0017] 1, wrinkle funnel;2, triangular groove;3, first glass tube;4, conical filter paper (circular filter paper after folding). DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0019] Embodiment: please refer to Figures 1-3 The utility model provides an embodiment: wrinkle funnel, including wrinkle funnel 1, conical filter paper (circular filter paper after folding) 4, wrinkle funnel 1 is provided with triangular groove 2, and the bottom of wrinkle funnel 1 is penetrated and is fixed with first glass tube 3 for discharging.

[0020] Working principle: when using, the circular filter paper 4 of appropriate size is made into a conical shape according to the conventional fan folding method, is placed into the inside of wrinkle funnel 1, and the first glass tube 3 is abutted to the three circular filter papers 4 and the inward protruding edge of wrinkle funnel 1, the filtrate is slowly flowed down along the first glass tube 3, and is filtered, although the funnel wall of wrinkle funnel 1 and the circular filter paper 4 exist numerous gaps, due to the self -tension of circular filter paper 4, and the pressure that the filtrate brings to circular filter paper 4 goes out even, and circular filter paper 4 will not deviate to the clearance, can guarantee the contact area with air, help the flow of filtrate.

[0021] As a preferred embodiment, the circular filter paper 4 can be placed in the pleated funnel 1, and the size of the circular filter paper 4 is smaller than the size of the pleated funnel 1.

[0022] As shown in the figure: the circular filter paper 4 is placed in the pleated funnel 1, which can avoid the folding of the circular filter paper 4 being washed away by the solution during the filtration process. Figures 1-3

[0023] As a preferred embodiment, the circular filter paper 4 is attached to the pleated port of the pleated funnel 1.

[0024] As shown in the figure: the pleated port of the pleated funnel 1 is provided with multiple groups, and is distributed in a circular shape. Figures 1-3

[0025] As a preferred embodiment, one side of the circular filter paper 4 is single-layered, and the other side is three-layered.

[0026] As shown in the figure: in this way, it can be ensured that the circular filter paper 4 does not collapse during use. Figures 1-3

[0027] Finally, it should be noted that the above only describes the preferred embodiments of the present application, and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or make equivalent replacements to some of the technical features, as long as they are within the spirit and principles of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.​​​

Claims

1. A pleated funnel, comprising a pleated funnel (1) and a circular filter paper (4), characterized in that: The pleated funnel (1) is provided with a triangular groove (2), and a first glass tube (3) for discharging materials is fixedly connected through the bottom of the pleated funnel (1).

2. The pleated funnel according to claim 1, characterized in that: The circular filter paper (4) can be placed in the pleated funnel (1), and the size of the circular filter paper (4) is smaller than the size of the pleated funnel (1).

3. The pleated funnel according to claim 2, characterized in that: The circular filter paper (4) is attached to the pleated port of the pleated funnel (1).

4. The pleated funnel according to claim 3, characterized in that: One side of the circular filter paper (4) is single-layered, and the other side is triple-layered.

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