Filter paper structure with good filtering performance

Abstract

The utility model discloses a filter paper structure with good filtering performance, and relates to the technical field of detection reagent consumables, the filter paper structure comprises a hard paper ring and a filter assembly, the lower end of the hard paper ring is connected with an outer filter disc, and the filter assembly used for improving the filtering effect and preventing slag blockage is arranged in the outer filter disc. The filter assembly comprises inner filter paper, a slag stopping piece and a filter bottom piece, the slag stopping piece is installed on the inner wall of the inner filter paper, the filter bottom piece is connected to the lower end of the inner filter paper, a connecting paper ring is installed at the upper end of the hard paper ring, an extension piece is connected to the upper end of the connecting paper ring, and a water-resisting layer is arranged on the surface of the extension piece. According to the filter paper structure with the good filtering performance, the outer filter disc and the inner filter paper are integrally in an inverted conical shape, the double filtering effect on filtrate is achieved in the filtrate funnel during detection and filtering, the filtering performance is improved, the slag stopping pieces play a role in graded blocking of impurities in the filtrate during filtering of the filtrate, it is avoided that all filter residues are accumulated on the filter bottom piece, and the filter quality is improved. The filtering effect of the inner filter paper is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection reagent consumable technical field, concretely is a filter paper structure with good filtering performance. BACKGROUND

[0002] In the laboratory, reagent is the substance for carrying out chemical reaction, and consumable is the tool and equipment for carrying out experimental operation and keeping experimental environment, and consumable includes filter paper, most of which is composed of cotton fiber, and is made by different methods according to different uses. Because its material is fiber product, its surface has countless small holes for liquid particles to pass through, and solid particles with large volume cannot pass through, and this property allows liquid and solid substances mixed together to separate.

[0003] But the filter paper usually has single-layer structure, and the filtering effect is poor when filtering.

[0004] Therefore, in view of the above, the existing structure and defects are improved, and a filter paper structure with good filtering performance is provided. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a filter paper structure with good filtering performance to solve the problems in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a filter paper structure with good filtering performance, comprising a hard paper ring and a filter assembly, the lower end of the hard paper ring is connected with an outer filter sheet, the filter assembly for increasing filtering effect and preventing slag blockage is arranged in the inner part of the outer filter sheet, and the filter assembly comprises an inner filter paper, a slag baffle and a filter bottom sheet, the inner wall of the inner filter paper is installed with the slag baffle, and the lower end of the inner filter paper is connected with the filter bottom sheet, the upper end of the hard paper ring is installed with a connecting paper ring, and the upper end of the connecting paper ring is connected with an extension sheet, and the surface of the extension sheet is provided with a waterproof layer.

[0007] Further, the outer filter sheet and the hard paper ring are fixedly connected, and the outer filter sheet and the hard paper ring form a hollow inverted conical shape.

[0008] Further, the inner filter paper and the slag baffle are fixedly connected, and the number of the slag baffles is three.

[0009] Further, the inner filter paper and the filter bottom sheet are integrated, and the inner filter paper and the filter bottom sheet form a hollow inverted circular truncated cone.

[0010] Further, the extension sheet is in the shape of a circular ring, and the extension sheet and the waterproof layer are closely attached.

[0011] Further, the outer part of the waterproof layer is provided with a plastic supporting strip, and the six plastic supporting strips are annularly arranged around the center point of the extension sheet.

[0012] Further, the end of the extension sheet is connected with an auxiliary assembly for assisting in adjusting the caliber, and the auxiliary assembly comprises an elastic ring and an adjusting cotton rope.

[0013] Further, the elastic ring and the extension sheet are fixedly connected, and the extension sheet and the adjusting cotton rope are sleevedly connected.

[0014] The filter paper structure has the following beneficial effects:

[0015] 1. The outer filter sheet and the inner filter paper are integrally inverted conical, which can play a double filtering effect on the filtrate in the filter funnel during detection and filtration, increase the filtering performance, and the residue blocking sheet can play a role of grading and blocking impurities in the filtrate during filtration, so that the filter residue is not all accumulated on the filter bottom sheet, and the filtering effect of the inner filter paper is increased.

[0016] 2. The extension sheet is installed on the hard paper ring through the connecting paper ring to increase the liquid capacity of the filtrate in the filter paper, avoid the influence of the filtrate on the filtering effect when the filtrate exceeds the filter paper, the water barrier layer is made of plastic material and plays a role of water blocking and leakage prevention outside the extension sheet, the shaped support strip is wrapped with rubber wire outside, which can be arbitrarily bent and adjusted in total length and shape according to the requirement, the shaped support strip plays a role of supporting and preventing collapse of the extension sheet, and the elastic ring adjusts the caliber of the extension sheet under the action of the adjusting cotton rope, so that the caliber of the extension sheet increases the effect of accommodating the filtrate. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a whole structure schematic view of the filter paper structure with good filtering performance.

[0018] Fig. 2 It is an auxiliary assembly structure schematic view of the filter paper structure with good filtering performance.

[0019] Fig. 3 It is a filtering assembly structure schematic view of the filter paper structure with good filtering performance.

[0020] In the figure: 1, hard paper ring; 2, outer filter sheet; 3, filtering assembly; 301, inner filter paper; 302, residue blocking sheet; 303, filter bottom sheet; 4, connecting paper ring; 5, extension sheet; 6, water barrier layer; 7, shaped support strip; 8, auxiliary assembly; 801, elastic ring; 802, adjusting cotton rope. DETAILED DESCRIPTION

[0021] The embodiments of the present application will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0022] As Fig. 1 and Fig. 2 The filter paper structure with good filtering performance, as shown in the drawings, comprises a hard paper ring 1 and a filter assembly 3, the lower end of the hard paper ring 1 is connected with an outer filter sheet 2, the outer filter sheet 2 and the hard paper ring 1 are fixedly connected, and the outer filter sheet 2 and the hard paper ring 1 form a hollow inverted cone, the upper end of the hard paper ring 1 is provided with a connecting paper ring 4, the connecting paper ring 4 is used for mounting an extension sheet 5 on the hard paper ring 1 to increase the liquid capacity of the filter liquid in the filter paper, so as to avoid affecting the filtering effect due to the filter liquid overflowing the filter paper, the upper end of the connecting paper ring 4 is connected with the extension sheet 5, the surface of the extension sheet 5 is provided with a water barrier layer 6, the water barrier layer 6 is made of plastic material and plays a role of water barrier and leakage prevention outside the extension sheet 5, the extension sheet 5 is in the shape of a circular ring, the extension sheet 5 and the water barrier layer 6 are closely attached, the outside of the water barrier layer 6 is provided with a plastic supporting strip 7, the iron wire wrapped with rubber outside the plastic supporting strip 7 can be arbitrarily bent and adjusted in total length and shape according to requirements, there are six plastic supporting strips 7 arranged in a ring shape about the center point of the extension sheet 5, the plastic supporting strip 7 plays a role of supporting and preventing collapse of the extension sheet 5, the end of the extension sheet 5 is connected with an auxiliary assembly 8 used for assisting in adjusting the caliber, the auxiliary assembly 8 comprises an elastic ring 801 and an adjusting cotton rope 802, the inside of the elastic ring 801 is provided with the adjusting cotton rope 802, the elastic ring 801 adjusts the caliber of the extension sheet 5 under the action of the adjusting cotton rope 802, so as to increase the effect of accommodating the filter liquid by the caliber of the extension sheet 5, the elastic ring 801 and the extension sheet 5 are fixedly connected, and the extension sheet 5 and the adjusting cotton rope 802 are connected in a sleeved manner.

[0023] As Fig. 3 The filter assembly 3 for increasing the filtering effect and preventing slag blocking is arranged inside the outer filter sheet 2, the outer filter sheet 2 and the inner filter paper 301 are in the shape of an inverted cone as a whole, which plays a role of double filtering of the filter liquid in the filter liquid funnel during detection and filtering, so as to increase the filtering performance, the filter assembly 3 comprises the inner filter paper 301, a slag blocking sheet 302 and a filter bottom sheet 303, the inner wall of the inner filter paper 301 is provided with the slag blocking sheet 302, the slag blocking sheet 302 plays a role of classifying and blocking impurities in the filter liquid during filtering, so as to avoid that the filter slag is completely accumulated on the filter bottom sheet 303, and the filtering effect of the inner filter paper 301 is increased, the inner filter paper 301 and the slag blocking sheet 302 are fixedly connected, there are three slag blocking sheets 302, the lower end of the inner filter paper 301 is connected with the filter bottom sheet 303, the inner filter paper 301 and the filter bottom sheet 303 are in an integrated structure, and the inner filter paper 301 and the filter bottom sheet 303 form a hollow inverted circular truncated cone.

[0024] In summary, the filter paper structure with good filtering performance firstly Figs. 1-3As shown in the structure, the filter paper is placed in the filter funnel, and the filtrate is poured into the filter paper, and the filtrate is filtered through the inner filter paper 301 and the outer filter sheet 2 in turn, at this time, the outer filter sheet 2 and the inner filter paper 301 have a double filtering effect on the filtrate, increase the filtering performance, and the residue blocking sheet 302 plays a role in grading and blocking impurities in the filtrate during filtration, avoiding the filter residue from being completely accumulated on the filter bottom sheet 303, increasing the filtering effect of the inner filter paper 301, if the filtrate is more, adjust the plastic support strip 7, the outer rubber wrapped iron wire of the plastic support strip 7 can be arbitrarily bent according to the requirement, the total length and the shape are adjusted, the plastic support strip 7 plays a supporting and anti-collapse role on the extension sheet 5, at this time, the extension sheet 5 is installed on the hard paper ring 1 to increase the liquid capacity of the inner filtrate of the filter paper, avoid the filtrate from affecting the filtering effect, at the same time, the water barrier 6 is made of plastic material and plays a role in water isolation and leakage prevention outside the extension sheet 5, and the adjusting cotton rope 802 inside the elastic ring 801 can be adjusted, that is, the diameter of the extension sheet 5 is adjusted, and the capacity of the extension sheet 5 is increased.

[0025] The embodiments of the present application are given for the purpose of example and description, and are not exhaustive or limit the present application to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described in order to better illustrate the principles and practical application of the present application, and to enable those skilled in the art to understand the present application so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A filter paper structure with good filtration properties, comprising a hard paper ring (1) and a filter assembly (3), characterized in that, The lower end of the hard paper ring (1) is connected with an outer filter sheet (2), the filter assembly (3) for increasing the filtering effect and preventing slag blockage is arranged inside the outer filter sheet (2), and the filter assembly (3) comprises an inner filter paper (301), a slag blocking sheet (302) and a filter bottom sheet (303), the inner wall of the inner filter paper (301) is provided with the slag blocking sheet (302), and the lower end of the inner filter paper (301) is connected with the filter bottom sheet (303), the upper end of the hard paper ring (1) is provided with a connecting paper ring (4), and the upper end of the connecting paper ring (4) is connected with an extension sheet (5), and the surface of the extension sheet (5) is provided with a water barrier layer (6).

2. The filter paper structure of claim 1, wherein, The outer filter sheet (2) and the hard paper ring (1) are fixedly connected, and the outer filter sheet (2) and the hard paper ring (1) form a hollow inverted conical shape.

3. The filter paper structure of claim 1, wherein, The inner filter paper (301) and the slag blocking sheet (302) are fixedly connected, and the number of the slag blocking sheet (302) is three.

4. The filter paper structure of claim 1, wherein, The inner filter paper (301) and the filter bottom sheet (303) are an integrated structure, and the inner filter paper (301) and the filter bottom sheet (303) form a hollow inverted circular truncated cone shape.

5. The filter paper structure of claim 1, wherein the filter paper structure has a filtration performance of 0.1 μm or less. The extension sheet (5) is in the shape of a circular ring, and the extension sheet (5) and the water barrier layer (6) are tightly attached.

6. The filter paper structure of claim 1, wherein, The outer part of the water barrier layer (6) is provided with a plastic supporting strip (7), and six plastic supporting strips (7) are arranged in a ring shape around the center point of the extension sheet (5).

7. The filter paper structure of claim 1, wherein the filter paper structure has a filtration performance of 0.1 μm or less. The end of the extension sheet (5) is connected with an auxiliary assembly (8) for assisting in adjusting the caliber, and the auxiliary assembly (8) comprises an elastic ring (801) and an adjusting cotton rope (802), and the inner part of the elastic ring (801) is provided with the adjusting cotton rope (802).

8. The filter paper structure of claim 7, wherein, The elastic ring (801) and the extension sheet (5) are fixedly connected, and the extension sheet (5) and the adjusting cotton rope (802) are connected in a sleeved manner.

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