Filter screen tightening and fixing assembly and flora filter

Abstract

The utility model relates to the technical field of flora separation equipment, in particular to a filter screen tightening and fixing assembly and a flora filter, the filter screen tightening and fixing assembly comprises a filter screen; the inner diameter circle of the upper cover is provided with a vertical surface; the outer diameter circle of the supporting bracket is provided with a binding face, and the binding face is matched with the vertical face so as to vertically clamp the outer edge of the tightened filter screen. According to the utility model, the filter screen can be clamped after being tightened, so that unfiltered florae are prevented from flowing out without being filtered.

Description

Technical Field

[0001] This utility model relates to the field of microbial separation equipment technology, and in particular to a filter screen tensioning and fixing component and a microbial filter. Background Technology

[0002] The microbial community refers to the group of all microorganisms in an ecosystem, which includes a variety of bacteria and other biological factors.

[0003] In recent years, gut microbiota transplantation (GMT) has shown great potential in the treatment of various diseases, including Clostridium difficile infection, inflammatory bowel disease, metabolic diseases, and certain mental illnesses. GMT involves transplanting fecal microbiota from a healthy donor into the patient's gut to restore the balance of the gut microbiota and thus achieve therapeutic goals. Isolating and extracting high-quality, highly active microbiota from fecal matter is a crucial prerequisite for effective GMT. The primary extraction method involves mixing donor feces with physiological saline, stirring and filtering, followed by centrifugation to extract the supernatant, retaining the precipitated colonies. This method requires numerous steps and has low microbiota separation efficiency. While filters are increasingly being used, existing filters use a sandwich-like structure formed by two fixed plates sandwiching the filter screen within the filter chamber. When a pressurized mixture is introduced from the inlet, the middle of the screen deforms, creating gaps between the screen edge and the inner wall of the filter chamber. This prevents the mixture from penetrating the screen, reducing the efficiency and quality of microbiota separation. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a filter screen tensioning and fixing component and a microbial filter, which facilitates the tensioning and clamping of the filter screen to prevent unfiltered microorganisms from flowing out.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] Filter tensioning and fixing components, including

[0007] Filter screen;

[0008] The upper cover has an inner diameter circle with a vertical surface;

[0009] The support bracket has an outer diameter circle with a mating surface, which mates with the vertical surface to vertically clamp the outer edge of the stretched filter screen.

[0010] The beneficial effects of the above solution are as follows: After the filter screen is tightened, the edge of the filter screen is fixed by the bonding surface and the vertical surface, which prevents the filter screen from being subjected to filtration pressure in the filtration direction, which would cause the edge to fail to tighten and gaps to appear, resulting in unfiltered bacteria flowing out and causing filtration failure. At the same time, the bonding surface and the vertical surface on the outer diameter circle of the support bracket are bonded to form a clamping structure, which makes the filter screen clamped in it tightened and held. The biggest advantage of this structure is that, within the limits of material strength, the greater the filtration pressure, the tighter the filter screen is held.

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] Furthermore, the upper surface of the support bracket is a first clamping surface and the first clamping surface is perpendicular to the contact surface. The upper cover has a second clamping surface that cooperates with the first clamping surface. The first clamping surface and the second clamping surface cooperate to horizontally clamp and tighten the filter screen.

[0013] The beneficial effects of adopting the above-mentioned further solution are: the first clamping surface and the second clamping surface cooperate to clamp the tensioned filter screen horizontally, and the filter screen is clamped in multiple directions to improve the clamping force of the filter screen.

[0014] Furthermore, an annular groove is provided on the first clamping surface, and a boss that matches the groove is provided at the corresponding position on the second clamping surface. The groove and the boss cooperate to further clamp the filter screen.

[0015] The beneficial effects of adopting the above-mentioned further solution are: in order to improve the sealing of the filter cavity and further increase the tension of the filter screen, a circular groove is provided on the upper surface of the support bracket, and a boss that cooperates with the groove is provided on the upper cover. The groove and the boss cooperate to further clamp the filter screen.

[0016] Furthermore, the support bracket includes a first support ring and a second support ring, the groove is disposed on the second support ring, and the first support ring and the second support ring are connected by a connecting rib.

[0017] The beneficial effect of adopting the above-mentioned further solution is that the support bracket is used to support the filter screen, preventing the filter screen from tearing or deforming during operation.

[0018] Furthermore, the first clamping surface and the contact surface are connected by a first inclined surface, and the second clamping surface and the vertical surface are connected by a second inclined surface.

[0019] The beneficial effects of adopting the above-mentioned further solution are: the first and second inclined surfaces increase the contact area with the filter screen, further tightening the filter screen, while the sealing between the filter screen and the top cover reduces the risk of liquid leakage.

[0020] The microbial filter, applied to the filter tensioning and fixing assembly as described above, also includes a lower cover, the upper cover and the lower cover being connected by connecting pins or glue.

[0021] The advantages of adopting the above-mentioned further solution are: the upper and lower covers are connected by connecting nails, which facilitates the replacement of different filter screens according to actual needs; and the upper and lower covers are connected by potting glue, which is conducive to mass production.

[0022] Furthermore, the upper cover has a filter chamber, the lower cover has a discharge chamber, and the filter screen is located between the filter chamber and the discharge chamber.

[0023] The beneficial effects of adopting the above-mentioned further solution are: the filter chamber is used to store impurities that cannot be filtered, and the discharge chamber allows the filtered bacteria to be discharged smoothly, reducing the residence time of the liquid in the filter.

[0024] Furthermore, the upper cover is provided with a feed pipe that communicates with the filter chamber, and the lower cover is provided with a discharge pipe that communicates with the discharge chamber.

[0025] The beneficial effects of adopting the above-mentioned further scheme are: the feed pipe is used to introduce the mixed liquid into the filter chamber, and the discharge chamber is used to quickly discharge the filtered bacteria. Attached Figure Description

[0026] Figure 1 This is a cross-sectional planar structural diagram of a specific embodiment of the present utility model;

[0027] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0028] Figure 3 This is a schematic diagram of the exploded structure of the microbial community filter of this utility model;

[0029] Figure 4 This is a schematic diagram of the microbial filter structure of this utility model.

[0030] The attached diagram lists the components represented by each number as follows:

[0031] 1. Filter screen; 2. Support bracket; 3. First clamping surface; 4. Fitting surface; 5. Top cover; 6. Second clamping surface; 7. Vertical surface; 8. Connecting pin; 9. First inclined surface; 10. Second inclined surface; 11. Groove; 12. Boss; 13. First support ring; 14. Second support ring; 15. Connecting rib; 16. Bottom cover; 17. Filter chamber; 18. Discharge chamber; 19. Feed pipe; 20. Discharge pipe. Detailed Implementation

[0032] The principles and features of the present invention are described below with reference to the accompanying drawings. The examples given are only for explaining the present invention and are not intended to limit the scope of the present invention.

[0033] In the description of this invention, it should be understood that the terms "center," "length," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "inner," "outer," "circumferential," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the system 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 invention.

[0034] In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the filter tensioning and fixing assembly includes...

[0037] Filter screen 1;

[0038] The upper cover 5 has a vertical surface 7 on its inner diameter circle;

[0039] The support bracket 2 has an outer diameter circle with a contact surface 4. The contact surface 4 cooperates with the vertical surface 7 to vertically clamp the outer edge of the stretched filter screen 1.

[0040] After the filter screen 1 is tightened, the edge of the filter screen 1 is clamped by the mating surface 4 and the vertical surface 7, which prevents the filter screen 1 from being subjected to filtration pressure in the filtration direction, which would cause the edge to fail to tighten and gaps to appear, resulting in unfiltered bacteria flowing out and causing filtration failure. At the same time, the mating surface 4 and the vertical surface 7 on the outer diameter circle of the support bracket 2 are mated to form a clamping structure, similar to a taut structure, to fix the filter screen 1, so that the filter screen 1 clamped in it is tightened and held. The biggest advantage of this structure is that, within the limits of material strength, the greater the filtration pressure, the tighter the filter screen 1 is clamped.

[0041] like Figure 1 , Figure 2 As shown, in one embodiment, the upper surface of the support bracket 2 is a first clamping surface 3 and the first clamping surface 3 is perpendicular to the contact surface 4. The upper cover 5 has a second clamping surface 6 that cooperates with the first clamping surface 3. The first clamping surface 3 and the second clamping surface 6 are closely fitted to horizontally clamp the stretched filter screen 1. The first clamping surface 3 and the second clamping surface 6 cooperate to horizontally clamp the stretched filter screen 1, and the filter screen 1 is clamped in multiple directions to improve the clamping force of the filter screen 1.

[0042] In other embodiments, the upper cover 5 has a hollow cavity, the support bracket 2 is annular, the outer ring contour of the support bracket 2 is the same as the inner ring contour of the upper cover 5, and the whole is embedded in the upper cover 5 in a tight fit manner. The outer edge of the filter screen 1 is located between the outer ring contour of the support bracket 2 and the inner ring contour of the upper cover 5 to clamp the taut filter screen 1.

[0043] In one embodiment, an annular groove 11 is provided on the first clamping surface 3. The longitudinal section of the groove 11 is arc-shaped. A boss 12 that matches the groove 11 is provided at the corresponding position on the second clamping surface 6. The groove 11 and the boss 12 cooperate to further clamp the filter screen 1. The groove 11 and the boss 12 cooperate to improve the sealing of the filter cavity and further increase the tightness of the filter screen 1.

[0044] In one embodiment, the support bracket 2 includes a first support ring 13 and a second support ring 14. The outer diameter of the first support ring 13 is equal to the inner diameter of the upper cover 5 that it mates with, so that the mating surface 4 and the vertical surface 7 fit tightly together. A groove 11 is provided on the second support ring 14. The first support ring 13 and the second support ring 14 are connected by a connecting rib 15. The first support ring 13, the second support ring 14 and the connecting rib 15 can all be injection molded from rigid plastic. The filter screen 1 is located on the upper side of the first support ring 13, the second support ring 14 and the connecting rib 15 to prevent the taut filter screen 1 from collapsing, deforming or tearing under the action of a mixture with a certain pressure.

[0045] In one embodiment, the first clamping surface 3 and the contact surface 4 are connected by the first inclined surface 9, and the second clamping surface 6 and the vertical surface 7 are connected by the second inclined surface 10. The first inclined surface 9 and the second inclined surface 10 increase the contact area with the filter screen 1, further making the filter screen 1 taut, and at the same time effectively preventing the filter screen 1 from shifting or deforming due to loose fit, thereby improving the stability and efficiency of filtration.

[0046] like Figure 1 , Figure 4As shown, this utility model also provides a microbial filter, which is applied to the filter screen tensioning and fixing assembly as described above, and also includes a lower cover 16. The upper cover 5 and the lower cover 16 are connected by connecting nails 8 or glue.

[0047] Specifically, the upper cover 5 is provided with evenly spaced first connecting holes arranged around the outer circumference of the upper cover 5, and the lower cover 16 is provided with second connecting holes that mate with each of the first connecting holes. Connecting pins 8 pass through the first and second connecting hole cavities to tightly connect the upper cover 5 and the lower cover 16, ensuring the airtightness of the microbial filter. At the same time, the support bracket 2 mates with the upper cover 5 and the lower cover 16 to press the edge of the filter membrane 1 tightly. The upper cover 5 and the lower cover 16 are connected by connecting pins 8, which facilitates the replacement of different filter screens 1 according to actual needs.

[0048] In other embodiments, after the upper cover 5 and the lower cover 16 are tightly bonded together, glue is injected at the connection between the upper cover 5 and the lower cover 16, which facilitates mass production and the formation of disposable consumables.

[0049] In some embodiments, the upper cover 5 has a filter chamber 17, the lower cover 16 has a discharge chamber 18, and the filter screen 1 is located between the filter chamber 17 and the discharge chamber 18. The filter chamber 17 is used to store impurities that cannot be filtered, and the discharge chamber 18 allows the filtered bacteria to be discharged smoothly, reducing the residence time of the liquid in the filter.

[0050] The upper cover 5 is provided with a feed pipe 19, which communicates with the filter chamber 17. The lower cover 16 is provided with a discharge pipe 20, which communicates with the discharge chamber 18. The feed pipe 19 is used to introduce a mixed liquid with a certain pressure into the filter chamber 17, and the discharge pipe 20 is used to discharge the filtered bacteria to a suitable storage location for storage.

[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A filter screen tensioning and fixing assembly, characterized in that: include Filter screen (1); The upper cover (5) has an inner diameter circle with a vertical surface (7); Support bracket (2), the outer diameter circle of the support bracket (2) has a contact surface (4), the contact surface (4) cooperates with the vertical surface (7) to vertically clamp the outer edge of the tensioned filter screen (1); The upper surface of the support bracket (2) is a first clamping surface (3) and the first clamping surface (3) is perpendicular to the contact surface (4). The upper cover (5) has a second clamping surface (6) that cooperates with the first clamping surface (3). The first clamping surface (3) and the second clamping surface (6) cooperate to horizontally clamp and tighten the filter screen (1). The first clamping surface (3) is provided with an annular groove (11), and the second clamping surface (6) is provided with a boss (12) that matches the groove (11) at the corresponding position. The groove (11) and the boss (12) cooperate to further clamp the filter screen (1). The support bracket (2) includes a first support ring (13) and a second support ring (14). The groove (11) is provided on the second support ring (14). The first support ring (13) and the second support ring (14) are connected by a connecting rib (15).

2. The filter screen tensioning and fixing assembly according to claim 1, characterized in that: The first clamping surface (3) and the contact surface (4) are connected by the first inclined surface (9), and the second clamping surface (6) and the vertical surface (7) are connected by the second inclined surface (10).

3. A microbial community filter, applied to the filter screen tensioning and fixing assembly as described in any one of claims 1 to 2, characterized in that: It also includes a lower cover (16), the upper cover (5) and the lower cover (16) being connected by connecting pins (8) or glue.

4. The microbial filter according to claim 3, characterized in that: The upper cover (5) has a filter chamber (17), the lower cover (16) has a discharge chamber (18), and the filter screen (1) is located between the filter chamber (17) and the discharge chamber (18).

5. The microbial filter according to claim 3, characterized in that: The upper cover (5) is provided with a feed pipe (19) and the feed pipe (19) is connected to the filter chamber (17). The lower cover (16) is provided with a discharge pipe (20) and the discharge pipe (20) is connected to the discharge chamber (18).

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