Filtering structure of microstrainer

Abstract

The utility model discloses a filtering structure of a micro-filter, which comprises a screen mesh, meshes are uniformly formed in the surface of the screen mesh, and a pressing groove is formed in the edge of the screen mesh; the middle of the filter cloth is bent, the whole filter cloth is in an inverted U shape, the filter cloth wraps the screen, and the area of the longitudinal section of the filter cloth is equal to that of the longitudinal section of the screen; the filter cloth is wrapped on the screen, so that the filter cloth can be conveniently cleaned in the later period, the phenomenon that meshes in the screen are blocked by impurities can be avoided, meanwhile, the filter cloth is conveniently replaced, and the overall flexibility is high; the clamping piece is arranged outside the filter cloth and extrudes the filter cloth into the pressing groove; according to the utility model, the filter cloth and the screen which are integrated are changed into detachable design, so that the filter cloth and the screen can be quickly disassembled and assembled, the later maintenance is facilitated, meanwhile, the connection stability of the filter cloth and the screen can be ensured during installation, the phenomenon of separation is avoided, the overall flexibility is improved, and the use cost is reduced; the defects of an existing structure in use are overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of microfilters, and particularly relates to a filtering structure of a microfilter. Background Art

[0002] A microfilter is a purification device that uses a microporous screen with 80 - 200 meshes per square inch fixed on a drum-type filtering device to intercept solid particles in sewage and achieve solid-liquid separation, and the filtering structure is the internal microporous screen.

[0003] The filtering component and the microfilter are disclosed in the publication number CN211274236U. This patent designs the filter cloth and the frame into an integral structure, which makes the bonding force between the filter cloth and the frame strong, avoids falling off, and at the same time, the overall structure has high strength and good impact resistance. However, once there are local damages, blockages, etc. in the integrally formed structure, the maintenance difficulty is large, and it can only be replaced一次性, so it is insufficient in terms of use flexibility and the cost is also high. Therefore, there is room for improvement. Content of the Utility Model

[0004] The purpose of the utility model is to provide a filtering structure of a microfilter to solve the problems of poor flexibility and inconvenient maintenance of the integrally formed filtering structure mentioned in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A filtering structure of a microfilter, comprising

[0006] A screen, with mesh holes evenly arranged on its surface, and a pressing groove is provided at the edge of the screen;

[0007] A filter cloth, with a bent middle part and an overall inverted "U" shape. The filter cloth is wrapped outside the screen, and the longitudinal cross-sectional area of the filter cloth is equal to that of the screen; Wrapping the filter cloth on the screen can not only facilitate the later cleaning of the filter cloth, but also prevent impurities from blocking the mesh holes on the screen, and at the same time, it is also convenient to replace the filter cloth, with relatively high overall flexibility;

[0008] A clamping member, arranged outside the filter cloth and pressing the filter cloth into the pressing groove, thereby installing the filter cloth on the screen to achieve stable installation.

[0009] Preferably, a connecting protrusion is fixed at one side edge of the front surface of the screen, and long strip holes are provided on the two end surfaces of the filter cloth. The long strip holes are sleeved on the connecting protrusion, thereby realizing the preliminary connection between the filter cloth and the screen and avoiding separation. In actual application, it is necessary to pull the filter cloth to sleeve the long strip holes on the connecting protrusion. Without pulling the filter cloth, the long strip holes cannot be sleeved on the connecting protrusion, thus ensuring that the normal installation is not affected.

[0010] Preferably, the clamping member is a pressure strip, which squeezes the filter cloth and is clamped into the pressure groove, thereby completing a stable connection between the screen and the filter cloth and avoiding separation of the two.

[0011] Preferably, the pressure strip is provided with an integrated convex head toward the outside of the screen, and a through groove is opened on the middle inner wall of the pressure groove toward the outside of the screen, the convex head is inserted into the through groove, and the end of the convex head extends to the outside of the through groove. Through the setting of the convex head, it is convenient to separate the pressure strip from the pressure groove by pushing the convex head later.

[0012] Preferably, the thickness of the filter cloth is smaller than the thickness of the screen, and the long holes are staggered with the mesh holes on the screen to avoid hollowing out and failure of filtering.

[0013] Preferably, a plurality of partition bars are formed on the inner side surface of the filter cloth, and the partition bars are in contact with the front and rear surfaces of the screen. The partition bars can form a distance between the screen and the filter cloth to facilitate the circulation of liquid.

[0014] Preferably, there is a distance between the two ends of the dividing strip and the two ends of the filter cloth, so that there is a distance between the middle area of ​​the filter cloth and the screen, thereby avoiding that there is a distance between the filter cloth and the screen around and affecting the filtering effect. The dividing strip and the mesh holes on the screen are staggered to avoid affecting normal filtration.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] In the utility model, the integrated filter cloth and screen are changed to a detachable design, so that the function of quick disassembly and installation of the two is realized, which is convenient for later maintenance. At the same time, the stability of the connection between the two can be guaranteed during installation to avoid separation. The overall flexibility is improved, the use cost is reduced, and the shortcomings of the existing structure in use are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the utility model after assembly;

[0019] Figure 3 For this utility model Figure 1 A magnified schematic diagram of the middle A area;

[0020] Figure 4 It is a cross-sectional view of the filter screen of the utility model.

[0021] In the figure:

[0022] 100, screen; 100a, pressing groove; 100b, through groove; 101, connecting protrusion;

[0023] 200, Filter cloth; 200a, Long strip holes; 201, Partition strip;

[0024] 300, Pressing strip; 301, Convex head. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0026] Please refer to Figures 1 to 4 , the present invention provides a technical solution: a filtering structure of a microfilter, including

[0027] A sieve mesh 100, with mesh holes evenly opened on the surface, and a pressing groove 100a is opened at the edge of the sieve mesh 100;

[0028] A filter cloth 200, with a bent middle part and an overall inverted "U" shape. The filter cloth 200 is wrapped outside the sieve mesh 100, and the longitudinal cross-sectional area of the filter cloth 200 is equal to that of the sieve mesh 100; Wrapping the filter cloth 200 on the sieve mesh 100 can not only facilitate the later cleaning of the filter cloth 200, but also prevent impurities from blocking the mesh holes on the sieve mesh 100, and at the same time, it is convenient to replace the filter cloth 200, with relatively high overall flexibility;

[0029] A clamping member, arranged outside the filter cloth 200 and squeezing the filter cloth 200 into the pressing groove 100a, thereby installing the filter cloth 200 on the sieve mesh 100 to achieve a stable installation.

[0030] In this embodiment, preferably, a connecting protrusion 101 is fixed at one side edge of the front surface of the sieve mesh 100, and long strip holes 200a are opened on both end surfaces of the filter cloth 200. The long strip holes 200a are sleeved on the connecting protrusion 101, thereby realizing the preliminary connection between the filter cloth 200 and the sieve mesh 100 and preventing separation. In practical applications, it is necessary to pull the filter cloth 200 to sleeve the long strip holes 200a on the connecting protrusion 101. Without pulling the filter cloth 200, the long strip holes 200a cannot be sleeved on the connecting protrusion 101, thus ensuring that the normal installation is not affected.

[0031] In this embodiment, preferably, the clamping member is a pressing strip 300. The pressing strip 300 squeezes the filter cloth 200 and snaps into the pressing groove 100a to complete the stable connection between the sieve mesh 100 and the filter cloth 200 and prevent the two from separating.

[0032] In this embodiment, preferably, the pressure strip 300 is provided with an integrated convex head 301 toward the outside of the screen 100, and a through groove 100b is opened on the middle inner wall of the pressing groove 100a toward the outside of the screen 100, the convex head 301 is inserted into the through groove 100b, and the end of the convex head 301 extends to the outside of the through groove 100b. Through the setting of the convex head 301, it is convenient to separate the pressure strip 300 from the pressing groove 100a by moving the convex head 301 later.

[0033] In this embodiment, preferably, the thickness of the filter cloth 200 is smaller than the thickness of the screen 100, and the long holes 200a are staggered with the mesh holes on the screen 100 to avoid hollowing out and failure of filtering.

[0034] In this embodiment, preferably, a plurality of dividing strips 201 are formed on the inner side of the filter cloth 200, and the dividing strips 201 are in contact with the front and rear surfaces of the screen 100. The dividing strips 201 can form a distance between the screen 100 and the filter cloth 200 to facilitate the circulation of liquid.

[0035] In this embodiment, preferably, there is a distance between the two ends of the dividing strip 201 and the two ends of the filter cloth 200, so that there is a distance between the middle area of ​​the filter cloth 200 and the screen 100, so as to avoid leaving a distance around the filter cloth 200 and the screen 100 to affect the filtering effect, and the dividing strip 201 and the mesh holes on the screen 100 are staggered to avoid affecting normal filtration.

[0036] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A filtering structure of a microfilter, characterized in that: including a sieve mesh (100) with evenly distributed mesh holes on its surface and a pressing groove (100a) formed at the edge of the sieve mesh (100); a filter cloth (200) with a bent middle part and an overall inverted "U" shape. The filter cloth (200) is wrapped outside the sieve mesh (100), and the longitudinal section area of the filter cloth (200) is equal to that of the sieve mesh (100); a clamping member arranged outside the filter cloth (200) and pressing the filter cloth (200) into the pressing groove (100a).

2. The filtering structure of a microfilter according to claim 1, characterized in that: A connecting protrusion (101) is fixed at one side edge of the front surface of the sieve mesh (100), and long strip holes (200a) are formed on the two end surfaces of the filter cloth (200). The long strip holes (200a) are sleeved on the connecting protrusion (101).

3. The filtering structure of a microfilter according to claim 2, characterized in that: The clamping member is a pressing strip (300), and the pressing strip (300) presses the filter cloth (200) and is clamped into the pressing groove (100a).

4. The filtering structure of a microfilter according to claim 3, characterized in that: An integral convex head (301) is arranged on the pressing strip (300) in the direction towards the outside of the sieve mesh (100), and a through groove (100b) is formed in the middle inner wall of the pressing groove (100a) in the direction towards the outside of the sieve mesh (100). The convex head (301) is clamped into the through groove (100b), and the end of the convex head (301) extends outside the through groove (100b).

5. The filtering structure of a microfilter according to claim 2, characterized in that: The thickness of the filter cloth (200) is less than that of the sieve mesh (100), and the long strip holes (200a) and the mesh holes on the sieve mesh (100) are arranged in a staggered manner.

6. The filtering structure of a microfilter according to claim 1, characterized in that: A plurality of partition strips (201) are formed on the inner side surface of the filter cloth (200), and the partition strips (201) are in contact with the front and back surfaces of the sieve mesh (100).

7. The filtering structure of a microfilter according to claim 6, characterized in that: There is a distance between the two ends of the partition strip (201) and the two ends of the filter cloth (200), so that there is a distance between the middle area of the filter cloth (200) and the sieve mesh (100), and the partition strip (201) and the mesh holes on the sieve mesh (100) are arranged in a staggered manner.

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