Combined filter screen

Abstract

The utility model discloses a combined type filter screen which comprises an outer protection assembly and a filter assembly, the outer protection assembly is formed by mutually connecting a mounting seat and an outer protective cover, the mounting seat is fixedly connected with two positioning rods, and the positioning rods are sleeved with spring pieces. The metal net in the outer protective cover is used for intercepting large-particle impurities, the melt-blown cloth can filter PM2.5 and small particles, the HEPA filter paper can adsorb superfine particles, and therefore graded filtering can be conducted, the filtering effect is improved, finally, the metal net, the melt-blown cloth and the HEPA filter paper are fixed to the three filtering layer outer frames correspondingly, and the filtering effect is improved. The three filter layer outer frames can be fixed on the positioning rods of the mounting seat in an overlapping manner, and the mounting seat is matched with the outer protective cover to extrude and sleeve the three filter layer outer frames inside, so that the metal net, the melt-blown cloth and the HEPA filter paper are convenient to disassemble and assemble, and the maintenance is convenient.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a combined filter. Background Technology

[0002] In water treatment, it is often necessary to filter water using filter screens. When filtering water using filter screens, due to work requirements, it is necessary to combine filter screens of different sizes to improve the filtration effect.

[0003] However, existing modular filters have certain drawbacks. First, they cannot perform layered filtration, which affects the filtration effect. Second, they are not easy to disassemble and assemble, making cleaning and maintenance difficult, which also has an impact. Therefore, there is an urgent need for a modular filter to solve these problems. Utility Model Content

[0004] To solve the above problems, this utility model provides a combined filter screen, which is achieved through the following technical solution.

[0005] A combined filter screen includes an outer protective component and a filter component;

[0006] The outer protective assembly is formed by connecting the mounting base and the outer cover. Two positioning rods are fixedly connected to the mounting base, and springs are sleeved on the positioning rods.

[0007] The filter assembly is provided with three filter layer outer frames, and a metal mesh, meltblown cloth and HEPA filter paper are respectively fixedly connected inside the three filter layer outer frames.

[0008] The filter layer outer frame has a filter element installation port and a perforation. A second annular sealing gasket is fixedly connected to the top of the filter layer outer frame. A threaded compression ring is provided inside the filter element installation port. Two second handles are fixedly connected inside the compression ring.

[0009] Furthermore, the mounting base is provided with a first annular sealing gasket, and the mounting base is sealed to the outer protective cover through the first annular sealing gasket, and the mounting base and the outer protective cover are threaded together.

[0010] Furthermore, the outer frame of the filter layer is movably sleeved on the positioning rod through perforations, and the outer frame of the filter layer is pressed against one end of the spring member.

[0011] Furthermore, the three outer frames of the filter layer are pressed together against the spring member, and the input end of the outer cover is pressed against the uppermost outer frame of the filter layer.

[0012] Furthermore, the outer protective cover has two first handles fixedly connected internally.

[0013] Furthermore, the meltblown fabric is located behind the metal mesh, and the HEPA filter paper is located behind the meltblown fabric.

[0014] The beneficial effects of this invention are as follows: During operation, wastewater first enters through the front end of the outer cover. Then, the metal mesh inside the outer cover intercepts large particulate impurities, the meltblown cloth filters PM2.5 and fine particles, and the HEPA filter paper adsorbs ultrafine particles, thus enabling graded filtration and improving the filtration effect. Finally, the metal mesh, meltblown cloth, and HEPA filter paper are respectively fixed on the three filter layer outer frames. The three filter layer outer frames can be stacked and fixed on the positioning rod of the mounting base. The mounting base, in conjunction with the outer cover, squeezes the three filter layer outer frames inside, facilitating the disassembly and assembly of the metal mesh, meltblown cloth, and HEPA filter paper, and making maintenance convenient. Attached Figure Description

[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 : A schematic diagram of the structure of the combined filter screen described in this utility model;

[0017] Figure 2 : Internal schematic diagram of the outer protective cover of this utility model;

[0018] Figure 3 : A schematic diagram showing the connection between the mounting base and the outer protective cover of this utility model;

[0019] Figure 4 : A schematic diagram showing the connection between the metal mesh, meltblown fabric and HEPA filter paper of this utility model.

[0020] The attached figures are labeled as follows:

[0021] 1. Mounting base; 11. Positioning rod; 12. Spring component; 13. First annular sealing gasket;

[0022] 2. Outer protective cover; 21. First-hand person;

[0023] 3. Filter layer outer frame; 31. Filter element mounting port; 32. Perforation; 33. Second annular sealing gasket; 34. Compression ring; 35. Second handle;

[0024] 4. Metal mesh;

[0025] 5. Meltblown nonwoven fabric;

[0026] 6. HEPA filter paper. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1-4 As shown, the present invention has the following specific embodiments.

[0029] Example:

[0030] A combined filter screen includes an outer protective component and a filter component;

[0031] The outer protective assembly is formed by interconnecting the mounting base 1 and the outer cover 2. Two positioning rods 11 are fixedly connected to the mounting base 1, and springs 12 are sleeved on the positioning rods 11.

[0032] The filter assembly is provided with three filter layer outer frames 3, and metal mesh 4, meltblown cloth 5 and HEPA filter paper 6 are respectively fixedly connected inside the three filter layer outer frames 3;

[0033] The filter layer outer frame 3 has a filter element installation port 31 and a perforation 32. A second annular sealing gasket 33 is fixedly connected to the top of the filter layer outer frame 3. A threaded compression ring 34 is provided inside the filter element installation port 31. Two second handles 35 are fixedly connected inside the compression ring 34.

[0034] Specifically, the mounting base 1 is provided with a first annular sealing gasket 13. The mounting base 1 is sealed to the outer cover 2 through the first annular sealing gasket 13, and the mounting base 1 and the outer cover 2 are threaded together. The first annular sealing gasket 13 can make the spring 12 sealed together. The threaded connection between the mounting base 1 and 2 makes it easy to disassemble and assemble.

[0035] Specifically, the outer frame 3 of the filter layer is movably sleeved on the positioning rod 11 through the perforation 32, and the outer frame 3 of the filter layer is pressed against one end of the spring member 12.

[0036] The three filter layer outer frames 3 are pressed together on the spring member 12, and the input end of the outer cover 2 is pressed on the uppermost filter layer outer frame 3. The three filter layer outer frames 3 can be limited and sleeved on the positioning rod 11 and press the spring member 12. The spring member 12 under pressure can generate a reaction force, so that the three filter layer outer frames 3 can fit together.

[0037] Specifically, the outer cover 2 has two first handles 21 fixedly connected inside, which facilitates the rotation of the outer cover 2 and the mounting base 1 for disassembly and assembly.

[0038] Specifically, the meltblown fabric 5 is located behind the metal mesh 4, and the HEPA filter paper 6 is located behind the meltblown fabric 5, so that the metal mesh 4, meltblown fabric 5 and HEPA filter paper 6 can filter in sequence from front to back, thereby enabling graded filtration.

[0039] The working principle of this utility model:

[0040] When using the device, wastewater first enters through the front end of the outer cover 2. Then, the metal mesh 4 inside the outer cover 2 is used to intercept large particulate impurities, the meltblown cloth 5 can filter PM2.5 and fine particles, and the HEPA filter paper 6 can adsorb ultrafine particles, thus enabling graded filtration and improving the filtration effect. Finally, the metal mesh 4, meltblown cloth 5, and HEPA filter paper 6 are respectively fixed on the three filter layer outer frames 3. The three filter layer outer frames 3 can be stacked and fixed on the positioning rod 11 of the mounting base 1. The mounting base 1, together with the outer cover 2, squeezes the three filter layer outer frames 3 inside, making it easy to disassemble and assemble the metal mesh 4, meltblown cloth 5, and HEPA filter paper 6, and facilitating maintenance.

[0041] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A combined filter screen, characterized in that, Includes external protective components and filter components; The outer protective assembly is formed by connecting the mounting base (1) and the outer cover (2). Two positioning rods (11) are fixedly connected to the mounting base (1), and springs (12) are sleeved on the positioning rods (11). The filter assembly is provided with three filter layer outer frames (3), and metal mesh (4), meltblown cloth (5) and HEPA filter paper (6) are respectively fixedly connected inside the three filter layer outer frames (3); The filter layer outer frame (3) is provided with a filter element installation port (31) and a perforation (32). A second annular sealing gasket (33) is fixedly connected to the top of the filter layer outer frame (3). A threaded compression ring (34) is provided inside the filter element installation port (31). Two second handles (35) are fixedly connected inside the compression ring (34).

2. The combined filter screen according to claim 1, characterized in that: The mounting base (1) is provided with a first annular sealing gasket (13), and the mounting base (1) is sealed to the outer cover (2) through the first annular sealing gasket (13), and the mounting base (1) and the outer cover (2) are threaded together.

3. A combined filter screen according to claim 1, characterized in that: The filter layer outer frame (3) is movably sleeved on the positioning rod (11) through the perforation (32), and the filter layer outer frame (3) is pressed against one end of the spring (12).

4. A combined filter screen according to claim 1, characterized in that: The three filter layer outer frames (3) are pressed together on the spring (12), and the input end of the outer cover (2) is pressed on the uppermost filter layer outer frame (3).

5. A combined filter screen according to claim 1, characterized in that: The outer protective cover (2) has two first handles (21) fixedly connected inside.

6. A combined filter screen according to claim 1, characterized in that: The meltblown fabric (5) is located behind the metal mesh (4), and the HEPA filter paper (6) is located behind the meltblown fabric (5).

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