Double-layer filter cartridge with fastening structure

Abstract

The utility model discloses a double-layer filter cartridge with a fastening structure, which relates to the technical field of double-layer filter cartridges, comprises a first filter cartridge and a second filter cartridge, and is characterized in that a plurality of connecting rings are equidistantly arranged between a first top ring and a second top ring according to the sizes of the first filter cartridge and the second filter cartridge by arranging a splicing assembly; the first top ring, the connecting ring and the first top ring are sequentially spliced, and then the second top ring, the connecting ring and the first top ring are sequentially spliced, so that the first filter cartridge and the second filter cartridge can be spliced, and a plurality of first filter cartridges and second filter cartridges with different sizes can be matched and mutually spliced by selecting proper sizes; a reset spring pushes a clamping plate to move inwards at the same time and clamp a first bottom ring, the position of the first filter cylinder can be clamped and fixed in the horizontal direction, an insertion rod is arranged and sequentially stretches into the first bottom ring and a second bottom ring, the positions of the first filter cylinder and the second filter cylinder in the vertical direction can be fixed, and the clamping effect is good. Therefore, the first filter cartridge and the second filter cartridge can be conveniently fastened and connected.

Description

Technical Field

[0001] The utility model relates to the technical field of double-layer filter cartridges, in particular to a double-layer filter cartridge with a fastening structure. Background Art

[0002] A filter cartridge is a cylindrical element used for filtering, and is generally divided into filter cartridges for filtering gas media and filtering liquid media. The filter cartridge for filtering gas media is called an air filter cartridge. The tiny air-permeable tissue formed on the surface of the filter material can block particulate matter in the gas. A double-layer filter cartridge uses two filter cartridges of different sizes and diameters together to achieve a double-layer filtration effect. The double-layer filter cartridge requires the two filter cartridges to be tightly connected to avoid problems such as the middle filter cartridge falling off.

[0003] For example, a double-layer filter cartridge with a fastening structure disclosed in the utility model with authorization announcement number CN220589359U inserts the second filter cartridge into the first filter cartridge, embeds the insert block into the mounting groove, inserts the pin rod into the mounting hole, inserts the pin rod into the pin hole, and fastens and locks the nut at the top of the pin hole, thereby fastening the second filter cartridge to the first filter cartridge.

[0004] This prior art also has the following problems when used:

[0005] The thicknesses of the first top plate and the second top plate on the top of the first filter cartridge and the second filter cartridge of the device are different, and the internal structures of the first top plate and the second top plate are quite different, which makes it difficult for the device to match and splice the top plates of multiple first filter cartridges and second filter cartridges of different sizes, and the applicability is poor. Utility Model Content

[0006] In order to overcome the deficiencies of the prior art, the utility model provides a double-layer filter cartridge with a fastening structure to solve the technical problems mentioned in the above background.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a double-layer filter cartridge with a fastening structure, comprising a first filter cartridge and a second filter cartridge, wherein the second filter cartridge is arranged inside the first filter cartridge;

[0008] A splicing assembly, which is arranged on the top surface of the first filter cartridge and the second filter cartridge, and the splicing assembly can splice the tops of the first filter cartridge and the second filter cartridge of multiple different sizes;

[0009] A clamping assembly, wherein the clamping seat assembly is arranged below the first filter cartridge, and the clamping assembly can clamp and fix first filter cartridges of different sizes;

[0010] The plug rod is symmetrically arranged below the first filter cartridge and the second filter cartridge, and the plug rod can conveniently fasten the first filter cartridge and the second filter cartridge.

[0011] As a preferred technical solution of the utility model, a first bottom ring is fixedly provided on the bottom surface of the first filter cartridge, a second bottom ring is fixedly provided on the bottom surface of the second filter cartridge, and a bottom plate is installed on the bottom surface of the first bottom ring.

[0012] As a preferred technical solution of the utility model, the splicing assembly includes a first top ring, a second top ring and a connecting ring. The first top ring is fixedly provided on the top surface of the first filter cartridge, the second top ring is fixedly provided on the top surface of the second filter cartridge, and a plurality of connecting rings are sequentially clamped between the first top ring and the second top ring.

[0013] As a preferred technical solution of the utility model, the first top ring, the second top ring and the connecting ring are all composed of a sleeve ring, an inner ring and an outer ring. The plane where the top surfaces of the first filter cartridge and the second filter cartridge are located is provided with sleeve rings, the inner ring is fixedly provided at the inner bottom of the sleeve ring, and the outer ring is fixedly provided at the outer top of the sleeve ring.

[0014] As a preferred technical solution of the utility model, the clamping assembly includes a clamping plate, a reset spring, a pull plate and a fixed plate. A symmetrical fixed plate is fixedly arranged on the top surface of the base plate, a symmetrical reset spring is fixedly arranged on the inner side of the fixed plate, a clamping plate is fixedly arranged on the other end of the reset spring, and a pull plate is fixedly arranged on the top surface of the clamping plate.

[0015] As a preferred technical solution of the utility model, the insertion rod passes through the fixed plate, the clamping plate, the first bottom ring and the second bottom ring in sequence, and the insertion rod is movably connected with the fixed plate, the clamping plate, the first bottom ring and the second bottom ring respectively, and a threaded rod is fixedly provided at one end of the insertion rod away from each other, the threaded rod passes through the fixed plate and is threadedly connected with the fixed plate, and a rotating plate is fixedly provided at one end of the threaded rod away from the insertion rod.

[0016] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0017] The utility model provides a splicing component, and according to the sizes of the first filter cartridge and the second filter cartridge, a plurality of connecting rings are equidistantly arranged between the first top ring and the second top ring, and then the second top ring, the connecting ring and the first top ring are spliced ​​in sequence, so that the first filter cartridge and the second filter cartridge can be spliced, thereby realizing the selection of suitable sizes between a plurality of first filter cartridges and second filter cartridges of different sizes for matching and mutual splicing; by providing a clamping component, a reset spring pushes the clamping plate to move inward and clamp the first bottom ring at the same time, so that the position of the first filter cartridge can be clamped and fixed in the horizontal direction; by providing an insert rod, the insert rod is sequentially extended into the first bottom ring and the second bottom ring, so that the vertical position of the first filter cartridge and the second filter cartridge can be fixed, thereby facilitating the fastening connection between the first filter cartridge and the second filter cartridge; the device can facilitate the mass production of first filter cartridges and second filter cartridges of different sizes, simplify the production process, has strong applicability, and is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the main view of the utility model;

[0020] Figure 3 This is a schematic diagram of the disassembly structure of the splicing components of the utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the sleeve ring, inner ring and outer ring of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the clamping assembly of the utility model;

[0023] Figure 6 This is a schematic diagram of the rod structure of the utility model;

[0024] Among them: 1. first filter cartridge; 2. first top ring; 3. second filter cartridge; 4. second top ring; 5. connecting ring; 6. first bottom ring; 7. second bottom ring; 8. bottom plate; 9. clamping plate; 10. reset spring; 11. plug rod; 12. pull plate; 13. fixed plate; 14. rotating plate; 15. threaded rod; 16. sleeve ring; 17. inner ring; 18. outer ring. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0026] Example

[0027] Please refer to Figure 1-Figure 6As shown, the utility model provides a double-layer filter cartridge with a fastening structure, including a first filter cartridge 1 and a second filter cartridge 3. The surfaces of the first filter cartridge 1 and the second filter cartridge 3 are provided with tiny air-permeable tissues, which can block particulate matter in the gas. The second filter cartridge 3 is arranged inside the first filter cartridge 1. A first bottom ring 6 is fixedly arranged on the bottom surface of the first filter cartridge 1, and a second bottom ring 7 is fixedly arranged on the bottom surface of the second filter cartridge 3. Symmetrical insertion rods 11 are arranged below the first filter cartridge 1 and the second filter cartridge 3. The insertion rods 11 sequentially penetrate the first bottom ring 6 and the second bottom ring 7 to the inside of the second bottom ring 7. The insertion rods 11 are movably connected with the first bottom ring 6 and the second bottom ring 7 respectively. The insertion rods 11 sequentially extend into the inside of the first bottom ring 6 and the second bottom ring 7 to fix the vertical positions of the first filter cartridge 1 and the second filter cartridge 3. A threaded rod 15 is fixedly arranged at one end of the insertion rod 11 away from each other, and a rotating plate 14 is fixedly arranged at one end of the threaded rod 15 away from the insertion rod 11.

[0028] like Figure 1-Figure 4 As shown, the top surfaces of the first filter cartridge 1 and the second filter cartridge 3 are provided with a splicing assembly, which consists of a first top ring 2, a second top ring 4 and a connecting ring 5. The first filter cartridge 1 and the second filter cartridge 3 are respectively fixedly provided with the first top ring 2 and the second top ring 4, and a plurality of connecting rings 5 ​​are sequentially clamped between the first top ring 2 and the second top ring 4. The first top ring 2, the second top ring 4 and the connecting ring 5 are all composed of a sleeve ring 16, an inner ring 17 and an outer ring 18. The plane where the top surfaces of the first filter cartridge 1 and the second filter cartridge 3 are located is provided with a sleeve ring 16, an inner ring 17 is fixedly provided at the inner bottom of the sleeve ring 16, an outer ring 18 is fixedly provided at the outer top of the sleeve ring 16, and the inner ring 17 and the outer ring 18 are fixedly provided. The thickness is the same and is half of the sleeve ring 16. The difference between the outer diameter and the inner diameter of the inner ring 17 is equal to the difference between the outer diameter and the inner diameter of the outer ring 18. According to the size of the first filter cartridge 1 and the second filter cartridge 3, multiple connecting rings 5 ​​are set between the first top ring 2 and the second top ring 4. The connecting rings 5 ​​are spliced ​​equidistantly in the first top ring 2 in turn, and then the second filter cartridge 3 is inserted into the first filter cartridge 1, and the second top ring 4 is spliced ​​with the connecting ring 5 close to the second top ring 4. The first filter cartridge 1 and the second filter cartridge 3 can be spliced, so as to realize the selection of suitable sizes between multiple first filter cartridges 1 and second filter cartridges 3 of different sizes for matching and mutual splicing.

[0029] like Figure 1-Figure 6As shown, a clamping assembly is arranged below the first filter cartridge 1, and the clamping assembly consists of a clamping plate 9, a reset spring 10, a pull plate 12 and a fixed plate 13. A symmetrical fixed plate 13 is fixedly arranged on the top surface of the bottom plate 8, and a symmetrical reset spring 10 is fixedly arranged on the inner side of the fixed plate 13. A clamping plate 9 is fixedly arranged on the other end of the reset spring 10, and a pull plate 12 is fixedly arranged on the top surface of the clamping plate 9. Pulling the pull plate 12 at the same time drives the clamping plates 9 to move outward at the same time, and the reset spring 10 is compressed until the spacing between the clamping plates 9 reaches the maximum, and the first bottom ring 6 of the first filter cartridge 1 is placed between the clamping plates 9 on the top surface of the bottom plate 8, and then the pull plate 12 is released, and the reset spring 10 pushes the clamping plates 9 to move inward at the same time until the reset spring 10 is tightly attached and By clamping the first bottom ring 6, the position of the first filter cartridge 1 of different sizes can be clamped and fixed in the horizontal direction. The insertion rod 11 passes through the fixed plate 13, the clamping plate 9, the first bottom ring 6 and the second bottom ring 7 in sequence. The insertion rod 11 is movably connected to the fixed plate 13 and the clamping plate 9 respectively. The threaded rod 15 passes through the fixed plate 13 and is threadedly connected to the fixed plate 13. The threaded rod 15 cooperates with the fixed plate 13 to fix the position of the insertion rod 11, so that after the insertion rod 11 is extended into the first bottom ring 6 and the second bottom ring 7, the first filter cartridge 1 and the second filter cartridge 3 can be fastened and connected. The device can facilitate mass production of first filter cartridges 1 and second filter cartridges 3 of different sizes, simplify the production process, has strong applicability, and is suitable for promotion.

[0030] Specific working principle:

[0031] When the device is used, a plurality of connecting rings 5 ​​are arranged between the first top ring 2 and the second top ring 4 according to the sizes of the first filter cartridge 1 and the second filter cartridge 3. The connecting rings 5 ​​are spliced ​​equidistantly in sequence inside the first top ring 2, and then the second filter cartridge 3 is inserted into the first filter cartridge 1, and the second top ring 4 is spliced ​​with the connecting ring 5 close to the second top ring 4. The first filter cartridge 1 and the second filter cartridge 3 can be spliced, and at the same time, the pull plate 12 is pulled to drive the clamping plate 9 to move outward at the same time, and the reset spring 10 is compressed until the spacing between the clamping plates 9 reaches the maximum, and the first bottom ring 6 of the first filter cartridge 1 is placed on the top of the bottom plate 8. The bottom surface of the second bottom ring 7 is now tightly against the top surface of the bottom plate 8, and the pull plate 12 is then released. The reset spring 10 pushes the clamping plate 9 to move inward at the same time until the reset spring 10 is tightly against and clamps the first bottom ring 6, thereby clamping and fixing the position of the first filter cartridge 1 of different sizes in the horizontal direction, and the insertion rod 11 is passed through the fixing plate 13, the clamping plate 9, the first bottom ring 6 and the second bottom ring 7 in sequence, and then the rotating plate 14 is rotated to make the threaded rod 15 threadedly connected with the fixing plate 13, and the position of the insertion rod 11 is fixed, thereby realizing the fastening connection between the first filter cartridge 1 and the second filter cartridge 3.

[0032] The device can select suitable sizes from among a plurality of first filter cartridges 1 and second filter cartridges 3 of different sizes and connect them to each other, thereby facilitating batch production of first filter cartridges 1 and second filter cartridges 3 of different sizes, simplifying the production process, having strong applicability, and being suitable for promotion.

[0033] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A double-layer filter cartridge with a fastening structure, comprising a first filter cartridge (1) and a second filter cartridge (3), wherein the second filter cartridge (3) is arranged inside the first filter cartridge (1), characterized in that: A splicing assembly, the splicing assembly is arranged on the top surface of the first filter cartridge (1) and the second filter cartridge (3), and the splicing assembly can splice the tops of a plurality of first filter cartridges (1) and second filter cartridges (3) of different sizes; A clamping assembly, wherein the clamping seat assembly is arranged below the first filter cartridge (1), and the clamping assembly can clamp and fix the first filter cartridges (1) of different sizes; An insertion rod (11), wherein the insertion rod (11) is symmetrically arranged below the first filter cartridge (1) and the second filter cartridge (3), and the insertion rod (11) can conveniently fasten the first filter cartridge (1) and the second filter cartridge (3) together.

2. A double-layer filter cartridge with a fastening structure according to claim 1, characterized in that: A first bottom ring (6) is fixedly arranged on the bottom surface of the first filter cartridge (1), a second bottom ring (7) is fixedly arranged on the bottom surface of the second filter cartridge (3), and a bottom plate (8) is installed on the bottom surface of the first bottom ring (6).

3. The double-layer filter cartridge with a fastening structure according to claim 1, characterized in that: The splicing assembly comprises a first top ring (2), a second top ring (4) and a connecting ring (5); the first top ring (2) is fixedly arranged on the top surface of the first filter cartridge (1); the second top ring (4) is fixedly arranged on the top surface of the second filter cartridge (3); and a plurality of connecting rings (5) are sequentially clamped between the first top ring (2) and the second top ring (4).

4. A double-layer filter cartridge with a fastening structure according to claim 3, characterized in that: The first top ring (2), the second top ring (4) and the connecting ring (5) are all composed of a sleeve ring (16), an inner ring (17) and an outer ring (18); the sleeve ring (16) is arranged on the plane where the top surfaces of the first filter cartridge (1) and the second filter cartridge (3) are located; the inner ring (17) is fixedly arranged at the bottom inside the sleeve ring (16); and the outer ring (18) is fixedly arranged at the top outside the sleeve ring (16).

5. The double-layer filter cartridge with a fastening structure according to claim 2, characterized in that: The clamping assembly comprises a clamping plate (9), a return spring (10), a pull plate (12) and a fixed plate (13); a symmetrical fixed plate (13) is fixedly arranged on the top surface of the bottom plate (8); a symmetrical return spring (10) is fixedly arranged on the inner side of the fixed plate (13); a clamping plate (9) is fixedly arranged on the other end of the return spring (10); and a pull plate (12) is fixedly arranged on the top surface of the clamping plate (9).

6. A double-layer filter cartridge with a fastening structure according to claim 5, characterized in that: The insertion rod (11) passes through the fixed plate (13), the clamping plate (9), the first bottom ring (6) and the second bottom ring (7) in sequence. The insertion rod (11) is movably connected to the fixed plate (13), the clamping plate (9), the first bottom ring (6) and the second bottom ring (7) respectively. A threaded rod (15) is fixedly arranged at one end of the insertion rod (11) away from each other. The threaded rod (15) passes through the fixed plate (13) and is threadedly connected to the fixed plate (13). A rotating plate (14) is fixedly arranged at one end of the threaded rod (15) away from the insertion rod (11).

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