Assay analysis filtering device

Abstract

The utility model belongs to the technical field of filtering devices, and particularly discloses a laboratory analysis filtering device which comprises at least two bottom frames, annular plates are fixedly connected to the bottom frames, a plurality of groups of funnels are arranged between the annular plates, supporting rings are fixedly connected to the outsides of the funnels, a plurality of groups of leakage holes are formed in the funnels, and the leakage holes are communicated with the bottom frames. The filter screens are connected to the funnels, the hole diameters of the multiple filter screens are different, the positions, corresponding to the supporting rings, of the outer portion of the annular plate are fixedly connected with protruding rings, and limiting locking assemblies are arranged on the outer portion of the annular plate. Impurity particles with different diameters are separated out, subsequent further assay analysis is facilitated, through arrangement of an annular plate, multiple sets of funnels can be conveniently clamped and fixed, disassembly and assembly are convenient, and subsequent replacement or cleaning of the funnels is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering devices, in particular to a filtering device for laboratory analysis. Background Art

[0002] Filtration is a common basic operation in laboratory analysis. Before analyzing chemical sewage, it is necessary to first use a filtering device to separate the impurity pollutants in the chemical sewage from the water, and then detect the impurities separately.

[0003] In the prior art, a Chinese patent with the publication number of CN 218553293 U discloses a filtering device for laboratory analysis, which includes a filtering frame and a filtrate tank. The filtering frame successively has from top to bottom: a top plate, a partition plate and a grid plate. A filtrate tank is arranged below the filtering frame. The filtering frame can accommodate multiple filtering funnels, and the filtered liquid of each funnel can be directly discharged into the filtrate tank and collected centrally by the filtrate tank. On the one hand, this structure can simultaneously conduct chemical analysis tests on multiple samples. On the other hand, the volume of the filtrate tank is relatively large, and in some gravimetric analysis filtrations, there is no need to consider replacing the waste liquid cup.

[0004] In this patent, only simple filtration can be achieved, and hierarchical filtration of sewage cannot be realized, which is inconvenient for further laboratory analysis of impurities of different sizes in the sewage. Content of the Utility Model

[0005] Aiming at the technical problem that only simple filtration can be achieved in the patent mentioned in the background art, and hierarchical filtration of sewage cannot be realized, the utility model provides a filtering device for laboratory analysis.

[0006] The technical solution adopted by the utility model is: a filtering device for laboratory analysis, including a bottom frame. There are at least two bottom frames. An annular plate is fixedly connected to the bottom frame. A plurality of groups of funnels are arranged between the annular plates. A support ring is fixedly connected to the outside of the funnel. A plurality of groups of leakage holes are arranged on the funnel. A filter screen is connected to the funnel. The apertures between multiple groups of filter screens are different. A convex ring is fixedly connected to the outside of the annular plate at the position corresponding to the support ring. A limit locking component is arranged outside the annular plate.

[0007] Furthermore, a diversion frame is fixedly connected to the bottom of the funnel.

[0008] Furthermore, the limit locking component includes limit rings and a limit plate arranged on both sides outside the annular plate. A spring is fixedly connected to the outside of one of the limit rings. Limit rods are fixedly connected to both sides of the bottom of the limit plate. Through holes are arranged on the limit ring at the positions corresponding to the limit rods.

[0009] Furthermore, an outer ring is fixedly connected to the outside of the annular plate, and the limiting ring abuts against the top of the outer ring.

[0010] Furthermore, positioning grooves are provided on the outside of both the outer ring and the limiting ring, positioning rods are provided in the positioning grooves, and a limiting frame is fixedly connected to the position of the positioning groove corresponding to the outside of the limiting ring.

[0011] Furthermore, a flow guide hopper is provided between the two annular plates.

[0012] Furthermore, the filter screen is of a conical structure.

[0013] The beneficial effects of the present utility model are as follows: Compared with the prior art, in the present utility model, the sewage is filtered by the filter screens on multiple groups of funnels, realizing hierarchical multi-stage filtration of the sewage, separating impurity particles of different diameters, facilitating subsequent further chemical analysis. Through the setting of the annular plate, it is convenient to clamp and fix multiple groups of funnels, which is convenient for disassembly and assembly, and facilitates subsequent replacement or cleaning of the funnels. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model.

[0015] Figure 2 is a three-dimensional structural diagram of the present utility model.

[0016] Figure 3 is a schematic structural diagram of the flow guide frame in the present utility model.

[0017] Figure 4 is a schematic cross-sectional structural diagram of the funnel and the filter screen in the present utility model.

[0018] Figure 5 is a schematic cross-sectional structural diagram of the funnel in the present utility model.

[0019] Figure 6 is Figure 1 an enlarged structural diagram of area A in

[0020] Figure 7 is Figure 1 an enlarged structural diagram of area B in

[0021] In the figure, the markings are: 1, chassis; 2, annular plate; 3, convex ring; 4, outer ring; 5, positioning groove; 6, positioning rod; 7, limiting ring; 8, spring; 9, limiting plate; 10, limiting rod; 11, limiting frame; 12, funnel; 13, leakage hole; 14, support ring; 15, flow guide frame; 16, filter screen; 17, flow guide hopper. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "front", "upper", "lower", "left", "right", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] The following further describes the present utility model with reference to the Figure 1-7 accompanying drawings.

[0025] To solve the technical problems in the background art, the present application provides: a chemical analysis filtering device, including a chassis 1, with at least two chassis 1 provided. In this embodiment, two chassis 1 are provided. A circular plate 2 is fixedly connected to the chassis 1. Between the circular plates 2, multiple groups of funnels 12 are provided. In this embodiment, three groups of funnels are provided. A support ring 14 is fixedly connected to the outside of the funnel 12. Multiple groups of leakage holes 13 are provided on the funnel 12. A filter screen 16 is connected to the funnel 12. The pore diameters between multiple groups of filter screens 16 are different. The filter screen 16 is a conical structure, and the pore diameters of the three groups of filter screens 16 decrease from top to bottom. A diversion frame 15 is fixedly connected to the bottom of the funnel 12.

[0026] To divert the filtered sewage, a diversion hopper 17 is provided between the two circular plates 2.

[0027] In a further design, a convex ring 3 is fixedly connected to the outside of the circular plate 2 corresponding to the position of the support ring 14, and a limit locking component is provided on the outside of the circular plate 2.

[0028] Specifically, the limit locking assembly includes a limit ring 7 and a limit plate 9 arranged on both sides of the outside of the annular plate 2, wherein a spring 8 is fixedly connected to the outside of one of the limit rings 7. Under the action of the spring 8, the limit rods 10 that conflict with each other can be tightened, and the bottom sides of the limit plate 9 are fixedly connected to the limit rods 10. The position of the limit rod 10 on the limit ring 7 corresponding to the limit rod 10 is provided with a through hole. The funnel 12 is placed between the two annular plates 2, and the convex ring 3 is used to clamp and fix the support ring 14 outside the funnel 12. Then, the limit ring 7 is taken, and the limit ring 7 is clamped between the two annular plates 2. Then, the limit plate 9 is taken, and the limit rod 10 at the bottom of the limit plate 9 is inserted into the through hole in the limit ring 7, so that the two opposing limit rings 7 can be clamped and fixed.

[0029] Among them, the outside of the annular plate 2 is fixedly connected with the outer ring 4, and the limiting ring 7 is in contact with the top of the outer ring 4. The outside of the outer ring 4 and the limiting ring 7 are provided with positioning grooves 5, and the positioning grooves 5 are provided with positioning rods 6. The position of the positioning groove 5 corresponding to the outside of the limiting ring 7 is fixedly connected to the limiting frame 11. Take the positioning rod 6 and pass it through the limiting frame 11, and clamp it in the positioning groove 5 to lock the position of the limiting ring 7.

[0030] In order for those skilled in the art to fully understand the technical solution, the method of using this embodiment is as follows:

[0031] Place the funnel 12 between the two annular plates 2, and let the convex ring 3 clamp and fix the support ring 14 outside the funnel 12, then take the limiting ring 7, and clamp the limiting ring 7 between the two annular plates 2, and then take the limiting plate 9, and let the limiting rod 10 at the bottom of the limiting plate 9 be inserted into the through hole in the limiting ring 7, so that the two opposing limiting rings 7 can be clamped and fixed;

[0032] Then, take the positioning rod 6 and pass it through the limiting frame 11, and snap it into the positioning groove 5 to lock the position of the limiting ring 7.

[0033] The sewage can be filtered through multiple groups of funnels 12 to achieve layered and multi-stage filtration of the sewage, and impurity particles of different diameters can be separated to facilitate subsequent further testing and analysis.

[0034] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A chemical analysis filtration device, characterized in that, It includes a chassis (1), at least two of the chassis (1) are provided, an annular plate (2) is fixedly connected to the chassis (1), multiple groups of funnels (12) are provided between the annular plates (2), a support ring (14) is fixedly connected to the outside of the funnel (12), multiple groups of leakage holes (13) are provided on the funnel (12), a filter screen (16) is connected to the funnel (12), the pore diameters between multiple groups of the filter screens (16) are different, a convex ring (3) is fixedly connected to the outside of the annular plate (2) at the position corresponding to the support ring (14), and a limit locking assembly is provided on the outside of the annular plate (2).

2. The chemical analysis filtration device according to claim 1, wherein, A diversion frame (15) is fixedly connected to the bottom of the funnel (12).

3. The assay analysis filtration device according to claim 1, characterized in that, The limit locking assembly includes limit rings (7) and a limit plate (9) arranged on both sides of the outside of the annular plate (2). A spring (8) is fixedly connected to the outside of one of the limit rings (7). Limit rods (10) are fixedly connected to both sides of the bottom of the limit plate (9). Through holes are provided at the positions of the limit rods (10) corresponding to the limit rings (7).

4. A chemical analysis filtration device according to claim 3, characterized in that, An outer ring (4) is fixedly connected to the outside of the annular plate (2), and the limit ring (7) abuts against the top of the outer ring (4).

5. The chemical analysis filtration device according to claim 4, characterized in that, Positioning grooves (5) are provided on the outside of both the outer ring (4) and the limit ring (7). Positioning rods (6) are provided in the positioning grooves (5). A limit frame (11) is fixedly connected to the outside of the limit ring (7) at the position corresponding to the positioning groove (5).

6. The chemical analysis filtering device according to claim 1, wherein, A diversion hopper (17) is provided between the two annular plates (2).

7. A chemical analysis filtration device according to claim 1, characterized in that, The filter screen (16) is of a conical structure.

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