Funnel stand for chemical analysis experiment

Abstract

The utility model discloses a funnel stand for a chemical analysis experiment, which comprises a base and a funnel plate arranged on the base and used for supporting a funnel, a plurality of shear fork type lifting platforms are arranged on the base side by side, and filtrate collecting containers such as beakers and volumetric flasks can be placed on the shear fork type lifting platforms. The distance between each containing container and the funnel can be independently adjusted by adjusting the lifting platform. A plurality of funnel holes are formed in the funnel plate side by side, and a plurality of layers of adjustable ferrules are arranged in the funnel holes. A waste liquid barrel for recycling waste liquid is arranged on the base, and a small-aperture telescopic pipe is arranged on the waste liquid barrel. And the design of the small-aperture telescopic pipe can reduce the volatilization of waste liquid in the filtering process.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental devices, in particular to a funnel rack for chemical analysis experiments. Background Art

[0002] Precipitation separation and extraction separation are commonly used solid-liquid and liquid-liquid separation methods in chemical testing laboratories. Laboratories usually use ordinary glass or plastic funnels for solid-liquid separation and separatory funnels for liquid-liquid extraction separation. Separation operations all require the use of funnel stands, beakers, and filtrate or waste liquid collection containers. Different funnels or different collection containers are used in different experimental processes. Conventional funnel stands are relatively simple, generally made of wood or plexiglass, and mainly serve to support the funnel. Before performing the filtration operation, the experimenter needs to place a filtrate collection device or waste liquid collection container such as a funnel stand, beaker or volumetric flask. The steps are cumbersome and time-consuming, which seriously affects work efficiency. Sometimes when conducting large-scale filtration experiments, funnels that are not purchased from the same batch are used. There is a mismatch between the funnel diameter and the distance between the filtrate collection container. During filtration, the filtrate can easily leak out of the collection device, resulting in experimental failure. There is also the problem of inconvenient waste liquid collection. Therefore, it is necessary to design a multifunctional funnel stand suitable for different types of funnels and with a waste liquid collection device to improve work efficiency.

[0003] The porous funnel racks on the market can be used for large-scale filtration operations, but the hole model of an ordinary funnel rack is single. When in use, only funnels of the same model can be placed. The funnel hole is not adjustable and the height is not adjustable. The existing patent (CN104492514A) discloses a funnel rack with adjustable height, which improves the applicability of the funnel rack and adapts to funnels of different lengths. However, when using the funnel rack to place funnels of different lengths at the same time, the support rods need to extend in different directions, which takes up a lot of space and is inconvenient to operate. In actual experimental operations, many types of funnels are used at the same time, and the funnel lengths are different. The existing funnel rack cannot adjust the height of each funnel separately. In addition, solid-liquid separation is an operation to separate solids from liquids. Depending on the experimental needs, sometimes the experimenter needs to collect the filtrate after filtration, and sometimes needs to collect solid precipitation. When collecting solid precipitation, the filtrate needs to be discarded. The ordinary funnel rack does not contain a waste liquid collection device, which makes waste liquid treatment troublesome, and the volatilization of waste liquid is not conducive to human health. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and provide a funnel rack for chemical analysis experiments, which can meet the needs of simultaneous use of funnels of different lengths and specifications. The design of the waste liquid collection device realizes the centralized collection and treatment of waste liquid.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A funnel stand for chemical analysis experiments includes a base and a funnel plate arranged on the base for supporting the funnel. The base is provided with a plurality of scissor-type lifting platforms arranged in parallel. The funnel plate is provided with a plurality of funnel holes arranged in parallel. Several layers of rings are provided in the funnel holes. The base is provided with a waste liquid bucket for recovering waste liquid.

[0007] Furthermore, an annular boss is provided on the inner wall of the funnel hole, and an annular groove cooperating with the annular boss is provided on the outer cylindrical surface of the ferrule.

[0008] Furthermore, the waste liquid barrel is provided with a telescopic tube.

[0009] Furthermore, the shear-type lifting platform and the waste liquid bucket on the base are both detachable.

[0010] Furthermore, the funnel plate and the base are both symmetrically arranged front to back.

[0011] Furthermore, the base is symmetrically provided with columns, the columns are provided with sliders that rise and fall on the columns, a support rod is provided between the funnel plate and the slider, the upper end of the support rod is rotatably connected to the funnel plate, and the lower end of the support rod is rotatably connected to the slider.

[0012] Furthermore, universal wheels are provided at the bottom of the base.

[0013] The beneficial effects of the utility model are:

[0014] 1. The utility model includes a base and a funnel plate arranged on the base for supporting the funnel. The base is provided with a plurality of scissor-type lifting platforms arranged in parallel. The scissor-type lifting platforms can be independently adjusted to different heights to meet the simultaneous use of funnels of different lengths and specifications. Beakers, volumetric flasks and other filtrate collection containers can be placed on the scissor-type lifting platforms. The height of the lifting platform can be adjusted to accommodate funnels of different lengths. The distance between each receiving container and the funnel can be independently adjusted.

[0015] 2. The present invention has a plurality of funnel holes arranged in parallel on the funnel plate. Several layers of rings are arranged in the funnel holes. The funnel plate has a plurality of ring openings with different apertures. The experimenter can select the appropriate ring opening according to the size of the funnel.

[0016] 3. The utility model is provided with a waste liquid bucket for recovering waste liquid on the base, and a telescopic tube is provided on the waste liquid bucket. The waste liquid bucket is designed with a telescopic tube, and the height of the telescopic tube can be adjusted to adapt to funnels of different lengths. In addition, the design of the small-aperture telescopic tube can reduce the volatilization of waste liquid during the filtration process, avoid harm to the health of the experimenters, and reduce air pollution and equipment corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0020] Figure 3 This is a cross-sectional view of the utility model.

[0021] In the figure: base 1, funnel plate 2, scissor-type lifting platform 3, funnel hole 4, ring 5, waste liquid bucket 6, telescopic tube 7, annular boss 8, column 9, slider 10, support rod 11, universal wheel 12. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the following will be combined with the drawings of the embodiments of the present invention to clearly and completely describe the technical solutions of the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0023] like Figure 1 and Figure 2As shown, a funnel stand for chemical analysis experiments includes a base 1 and a funnel plate 2 mounted on the base 1 for supporting the funnel. The base 1 is provided with a plurality of scissor-type lifting platforms 3 arranged in parallel. The scissor-type lifting platforms can be independently adjusted to different heights to accommodate funnels of different lengths and specifications. Filtrate collection containers such as beakers and volumetric flasks can be placed on the scissor-type lifting platforms. The height of the lifting platforms can be adjusted to accommodate funnels of different lengths. The distance between each receiving container and the funnel can be independently adjusted. The funnel plate 2 is provided with a plurality of funnel holes 4 arranged in parallel. The funnel holes 4 are provided with a plurality of layers of rings 5. The funnel plate has a plurality of ring openings of different diameters. The experimenter can independently select the appropriate ring opening according to the size of the funnel. The base 1 is provided with a waste liquid bucket 6 for recovering waste liquid, thereby realizing centralized collection and treatment of waste liquid. The waste liquid bucket is made of polytetrafluoroethylene, which is resistant to acid, alkali, and organic solvent corrosion, and the lifting platform is made of a material resistant to acid, alkali, and organic solvent corrosion.

[0024] like Figure 3 As shown, an annular boss 8 is provided on the inner wall of the funnel hole 4, and an annular groove cooperating with the annular boss 8 is provided on the outer cylindrical surface of the ferrule 5. The positioning of the annular boss 8 is achieved through the cooperation between the annular boss 8 and the annular groove.

[0025] like Figure 2 As shown, the waste liquid barrel 6 is provided with a telescopic tube 7. The waste liquid barrel is designed with a telescopic tube. By adjusting the height of the telescopic tube, it can adapt to funnels of different lengths. In addition, the design of the small-aperture telescopic tube can reduce the volatilization of waste liquid during the filtration process, avoid harm to the health of the experimenters, and reduce air pollution and equipment corrosion.

[0026] The shear-type lifting platform and the waste liquid bucket 6 on the base 1 are both detachable. When the funnel rack is not used for a long time, it can be disassembled, and the funnel plate and the bottom plate can be folded by adjusting the diagonal brace and placed for storage.

[0027] like Figure 1 As shown, the funnel plate 2 and the base 1 are both symmetrically arranged front to back. The base 1 is symmetrically provided with upright posts 9, each of which is provided with a slider 10 that rises and falls on the upright posts 9. The slider 10 is locked in place with the upright posts 9 by a locking screw. A support rod 11 is provided between the funnel plate 2 and the slider 10. The upper end of the support rod 11 is rotatably connected to the funnel plate 2, and the lower end of the support rod 11 is rotatably connected to the slider 10. After the lifting platform and waste liquid bucket 6 are removed from the base, the base and funnel plate can be folded using a 360-degree rotation axis.

[0028] like Figure 1 As shown, a universal wheel 12 is provided at the bottom of the base 1. The design of the universal wheel at the bottom enables the funnel rack to move freely on the test bench without consuming manpower.

[0029] In the description of the present invention, it should be noted that the terms "left", "right", "up", "down", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as a limitation on the present invention.

[0030] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

Claims

1. A funnel stand for chemical analysis experiments, comprising a base (1) and a funnel plate (2) arranged on the base (1) for supporting the funnel, characterized in that: The base (1) is provided with a plurality of scissor-type lifting platforms (3) arranged in parallel, the funnel plate (2) is provided with a plurality of funnel holes (4) arranged in parallel, the funnel holes (4) are provided with a plurality of layers of rings (5), and the base (1) is provided with a waste liquid bucket (6) for recovering waste liquid.

2. A funnel stand for chemical analysis experiments as claimed in claim 1, characterized in that: An annular boss (8) is provided on the inner wall of the funnel hole (4), and an annular groove cooperating with the annular boss (8) is provided on the outer cylindrical surface of the ferrule (5).

3. A funnel stand for chemical analysis experiments as claimed in claim 1, characterized in that: The waste liquid barrel (6) is provided with a telescopic tube (7).

4. A funnel stand for chemical analysis experiments as claimed in claim 1, characterized in that: The shear-type lifting platform and the waste liquid bucket (6) on the base (1) are both detachable.

5. A funnel stand for chemical analysis experiments as claimed in claim 1, characterized in that: The funnel plate (2) and the base (1) are both arranged symmetrically front to back.

6. A funnel stand for chemical analysis experiments as claimed in claim 1, characterized in that: The base (1) is provided with upright posts (9) symmetrically on both sides, and a slider (10) is provided on the upright posts (9) and is lifted and lowered on the upright posts (9). A support rod (11) is provided between the funnel plate (2) and the slider (10), and the upper end of the support rod (11) is rotatably connected to the funnel plate (2), and the lower end of the support rod (11) is rotatably connected to the slider (10).

7. A funnel stand for chemical analysis experiments as claimed in claim 1, characterized in that: The bottom of the base (1) is provided with a universal wheel (12).

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