Composite filter element structure

Abstract

The utility model relates to the technical field of filter elements, and discloses a composite filter element structure which comprises a shell, a water inlet is fixedly connected to the middle end of the lower side of the shell, and a water outlet is fixedly connected to one end of the lower side of the shell. Then the clamping assembly is used for separating the clamping position of the plug pin assembly and the clamping assembly, then the extrusion assembly is pulled to drive the plug pin assembly to be separated from the sealing assembly, and then the clamping assembly is unscrewed to take out a PP cotton layer or an activated carbon layer in the protection assembly for replacement. After replacement is finished, the protection assembly and the extrusion assembly are mounted in a meshed mode, the extrusion assembly drives the protection assembly to be inserted into the shell to be sealed through the sealing assembly, and meanwhile the extrusion assembly drives the plug pin assembly to be inserted into the clamping assembly to be clamped and fixed, so that in the using process of the composite filter element, the filter assembly can be rapidly taken out and replaced, and the practicability is high. Therefore, the material loss of the composite filter element is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filter elements, and specifically, to a composite filter element structure. Background Art

[0002] A composite filter element is a product that integrates multiple filtering materials or filtering functions in one filter element. It is mainly composed of different filtering media combinations, such as activated carbon, ultrafiltration membrane, PP cotton, etc., so as to effectively remove various pollutants such as impurities, odors, abnormal colors, and bacteria in water.

[0003] After retrieval, it is proposed in Chinese Application No. CN202221877977.8 that a composite filter element structure includes a housing. An inlet and an outlet are provided at the bottom of the housing. The structure further includes a sleeve and a middle cover. The sleeve is fixed at the bottom of the housing and is communicated with the outlet. A filtering unit is fixed in the sleeve. The middle cover is sealingly connected to the sleeve, and an exhaust rod with an open upper end is coaxially arranged on the middle cover. A filtering component is wrapped outside the exhaust rod. An inlet channel communicated with the inlet is formed between the filtering component and the housing. In the above prior art, a channel communicated with the inlet is formed between the filtering unit and the housing to handle the "trapped air" caused by the raw water in the filter element, thereby improving the filtering effect of the filter element.

[0004] In the above prior art, it mainly aims at the filtering influence caused by "trapped air" during the filtering process of the raw water by the internal filtering component of the composite filter element. When the filtering components in the composite filter element are installed and used, they are usually integrally fixedly connected. When one group of filtering components has problems, the entire composite filter element is replaced. However, the overall material cost of the composite filter element is relatively high, and the internal structure is relatively complex. Therefore, it is inconvenient to replace and repair a damaged single-group filtering component, which leads to the inconvenience of reusing the remaining filtering components, and thus causes relatively large losses. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a composite filter element structure to solve the problem in the prior art that it is inconvenient to quickly remove and replace the internal filter element of the composite filter element, which leads to the inconvenience of reusing some filtering components of the composite filter element, and thus causes relatively large material losses.

[0006] The present utility model provides the following technical solution: A composite filter element structure, comprising a housing, a water inlet fixedly connected to the middle end of the lower side of the housing, and a water outlet fixedly connected to one end of the lower side of the housing. A PP cotton layer is inserted into the inner part of the lower end of the housing, and an activated carbon layer is inserted into the inner part of the upper end of the housing. Air holes are formed in the outer end of the housing, and a protection component is sleeved outside the PP cotton layer and the activated carbon layer. The upper end of the protection component is meshed with an extrusion component, and a sealing component is fixedly connected to the outer end of the extrusion component. A plug component is arranged on one side of the sealing component, and a clamping component is arranged outside the lower end of the plug component.

[0007] As a preference of the above technical solution, the protection component includes an inner housing sleeved outside the PP cotton layer and the activated carbon layer, and a positioning tube is inserted into the inner part of the lower end of the inner housing, and the lower end of the positioning tube is fixedly connected to the water outlet.

[0008] As a preference of the above technical solution, the extrusion component includes a cover plate attached to the outer side of the upper end of the inner housing, and a connecting plate is fixedly connected to the lower side of the middle end of the cover plate. The outer end of the connecting plate is meshed with the inner housing, and a first spring is fixedly connected to the lower side of the middle end of the connecting plate. The lower end of the first spring is fixedly connected to a pressing plate, and the lower side of the pressing plate is attached to the activated carbon layer. A pull handle is fixedly connected to the upper end of the cover plate.

[0009] As a preference of the above technical solution, the sealing component includes a protective cover fixedly connected to the lower side of the outer end of the cover plate, and a sealing gasket is fixedly connected to the inner side of the protective cover.

[0010] As a preference of the above technical solution, the plug component includes a plug board arranged at one end of the protective cover away from the sealing gasket, and the upper end of the plug board is fixedly connected to the cover plate. A clamping block is inserted into the inner part of the lower end of the plug board, and one end of the clamping block inserted into the plug board is fixedly connected to a second spring, and the end of the second spring away from the clamping block is fixedly connected to the plug board.

[0011] As a preference of the above technical solution, the clamping component includes a collar sleeved outside the lower end of the plug board, and the inner side of the collar is fixedly connected to the housing. Push plates are inserted into both ends of the collar, and a rubber button is sleeved outside one end of the push plate away from the collar, and one end of the rubber button close to the collar is fixedly connected to the collar.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] For such a composite filter element structure, when damage occurs at the PP cotton layer or the activated carbon layer and needs to be replaced, the clamping components on both sides can be pressed first, and then the insertion pin component can be separated from the clamping position of the clamping component by using the clamping component. Subsequently, the extrusion component is pulled to drive the insertion pin component to be separated from the sealing component. Then, the clamping component is unscrewed to take out the PP cotton layer or the activated carbon layer in the protection component for replacement. After the replacement is completed, after the protection component and the extrusion component are engaged and installed, the extrusion component drives the protection component to be inserted into the housing and sealed through the sealing component. At the same time, the extrusion component drives the insertion pin component to be inserted into the clamping component for clamping and fixing, so that during the use of the composite filter element, the filter component can be quickly taken out and replaced, thereby reducing the material loss of the composite filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 FIG. is a schematic structural diagram of a composite filter element structure;

[0015] Figure 2 FIG. is a schematic cross-sectional structural diagram of a composite filter element structure;

[0016] Figure 3 FIG. Figure 2 is an enlarged schematic diagram of the structure at A in

[0017] Figure 4 FIG. Figure 2 is an enlarged schematic diagram of the structure at B in

[0018] In the figure: 1. Housing; 11. Water inlet; 12. Water outlet; 13. PP cotton layer; 14. Activated carbon layer; 15. Air hole; 2. Inner housing; 21. Positioning tube; 3. Cover plate; 31. Connecting plate; 32. First spring; 33. Pressing plate; 34. Pull handle; 4. Protective cover; 41. Sealing gasket; 5. Insertion plate; 51. Clamping block; 52. Second spring; 6. Collar; 61. Pushing plate; 62. Rubber button. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] 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.

[0020] As Figure 1 - Figure 4As shown in the figure, the present utility model provides a technical solution: a composite filter element structure, including a housing 1. In the middle of the lower side of the housing 1, a water inlet 11 is fixedly connected, and at one end of the lower side of the housing 1, a water outlet 12 is fixedly connected. Inside the lower end of the housing 1, a PP cotton layer 13 is inserted, and inside the upper end of the housing 1, an activated carbon layer 14 is inserted. Air holes 15 are opened on the outer end of the housing 1. A protective component is sleeved outside the PP cotton layer 13 and the activated carbon layer 14. The upper end of the protective component is meshed with an extrusion component, and the outer end of the extrusion component is fixedly connected with a sealing component. A pin component is arranged on one side of the sealing component, and a clamping component is arranged outside the lower end of the pin component. When the PP cotton layer 13 or the activated carbon layer 14 is damaged and needs to be replaced, the clamping components on both sides can be pressed first, and then the pin component can be separated from the clamping position of the clamping component by using the clamping component. Subsequently, the extrusion component is pulled to drive the pin component to be separated from the sealing component. Then, the clamping component is unscrewed to take out the PP cotton layer 13 or the activated carbon layer 14 inside the protective component for replacement. After the replacement is completed, after the protective component and the extrusion component are meshed and installed, the extrusion component drives the protective component to be inserted into the housing 1 and sealed through the sealing component. At the same time, the extrusion component drives the pin component to be inserted into the clamping component for clamping and fixing, so that during the use of the composite filter element, the filtering component can be quickly taken out and replaced, thereby reducing the material loss of the composite filter element.

[0021] As Figure 2 shown, the protective component includes an inner shell 2 sleeved outside the PP cotton layer 13 and the activated carbon layer 14. Inside the lower end of the inner shell 2, a positioning tube 21 is inserted. The lower end of the positioning tube 21 is fixedly connected with the water outlet 12. The PP cotton layer 13 and the activated carbon layer 14 are stored through the inner shell 2 for subsequent replacement. At the same time, by using the clamping connection between the inner shell 2 and the positioning tube 21, it is convenient for the positioning tube 21 to position the inner shell 2 when the inner shell 2 is inserted into the housing 1 subsequently.

[0022] As Figure 2 and Figure 3 shown, the extrusion component includes a cover plate 3 attached to the outer side of the upper end of the inner shell 2. A connecting plate 31 is fixedly connected to the lower side of the middle of the cover plate 3. The outer end of the connecting plate 31 is meshed with the inner shell 2. A first spring 32 is fixedly connected to the lower side of the middle of the connecting plate 31. The lower end of the first spring 32 is fixedly connected with a pressing plate 33. The lower side of the pressing plate 33 is attached to the activated carbon layer 14. A pull handle 34 is fixedly connected to the upper end of the cover plate 3. The cover plate 3 drives the first spring 32 and the pressing plate 33 to be inserted into the inner shell 2. Subsequently, the cover plate 3 is rotated to make the connecting plate 31 meshed and fixed with the inner shell 2. During the process of rotating the cover plate 3, the cover plate 3 pushes the connecting plate 31 to gradually compress the first spring 32, so that the first spring 32 pushes the pressing plate 33 to press and limit the upper side of the activated carbon layer 14, which is convenient for limiting the upper end of the inner shell 2 and at the same time can also press the activated carbon layer 14 installed inside the inner shell 2.

[0023] AsFigure 4 As shown, the sealing assembly includes a shield 4 fixedly connected to the lower side of the outer end of the cover plate 3, and a sealing gasket 41 is fixedly connected to the inner side of the shield 4. Through the shield 4 and the sealing gasket 41, it is convenient to seal the connection between the cover plate 3 and the housing 1, thereby facilitating the prevention of the leakage of raw water.

[0024] As Figure 4 shown, the plug assembly includes a plug plate 5 provided at one end of the shield 4 away from the sealing gasket 41, and the upper end of the plug plate 5 is fixedly connected to the cover plate 3. A clamping block 51 is inserted into the lower end of the plug plate 5, and a second spring 52 is fixedly connected to the end of the clamping block 51 inserted into the plug plate 5. The end of the second spring 52 away from the clamping block 51 is fixedly connected to the plug plate 5. When the plug plate 5 is inserted, the clamping position assembly presses the clamping block 51 at the lower end of the plug plate 5. After being pressed, the clamping block 51 is inserted into the plug plate 5. When the insertion of the plug plate 5 is completed, the second spring 52 pushes the clamping block 51 to pop out, so that the clamping block 51 is inserted into the clamping position assembly to fix the plug plate 5 in position, facilitating the stable restriction of the cover plate 3 and subsequent removal.

[0025] As Figure 4 shown, the clamping position assembly includes a collar 6 sleeved on the outer side of the lower end of the plug plate 5, and the inner side of the collar 6 is fixedly connected to the housing 1. Push plates 61 are inserted into both ends of the collar 6, and a rubber button 62 is sleeved on the outer side of the end of the push plate 61 away from the collar 6. The end of the rubber button 62 close to the collar 6 is fixedly connected to the collar 6. By pressing the rubber buttons 62 on both sides, after being squeezed, the rubber buttons 62 push the push plates 61 to move so that the push plates 61 press the clamping block 51, thereby pushing the clamping block 51 out of the collar 6, facilitating the disconnection of the clamping connection between the plug plate 5 and the collar 6, and further facilitating subsequent replacement and installation.

[0026] Working principle: When either the PP cotton layer 13 or the activated carbon layer 14 inside the composite filter element is damaged, the rubber buttons 62 on both sides can be pressed first. After being squeezed, the rubber buttons 62 push the push plate 61 to move, causing the push plate 61 to squeeze the latch 51. After being squeezed, the latch 51 is inserted into the insertion plate 5 to compress the second spring 52. Subsequently, when the latch 51 is pushed out of the collar 6, the pull handle 34 is pulled at this time to drive the insertion plate 5 out of the collar 6. Then, the pull handle 34 is continuously pulled to pull the inner shell 2 out of the outer shell 1 through the connecting plate 31, separating the inner shell 2 from the positioning tube 21. Then, the inner shell 2 is rotated to separate the inner shell 2 from the connecting plate 31. After the inner shell 2 and the connecting plate 31 are separated, the first spring 32 and the pressing plate 33 are pulled out of the inner shell 2 through the cover plate 3. Then, the PP cotton layer 13 or the activated carbon layer 14 inside the inner shell 2 is taken out for replacement. After the replacement is completed, the cover plate 3 drives the first spring 32 and the pressing plate 33 to be inserted into the inner shell 2. Then, the cover plate 3 is rotated to engage and fix the connecting plate 31 with the inner shell 2. During the process of rotating the cover plate 3, the cover plate 3 pushes the connecting plate 31 to gradually squeeze the first spring 32, so that the first spring 32 pushes the pressing plate 33 to squeeze and limit the upper side of the activated carbon layer 14. Then, the inner shell 2 is driven by the pull handle 34 to be inserted into the outer shell 1, and the lower end of the inner shell 2 is sleeved outside the positioning tube 21 for limitation. At the same time, when the inner shell 2 is inserted, the cover plate 3 synchronously drives the protective cover 4 and the gasket 41 to fit with the outer shell 1. At the same time, the cover plate 3 also drives the insertion plate 5 to be inserted into the collar 6. When the insertion plate 5 is inserted, the collar 6 squeezes the latch 51 at the lower end of the insertion plate 5. After being squeezed, the latch 51 is inserted into the insertion plate 5. When the insertion of the insertion plate 5 is completed, the second spring 52 pushes the latch 51 to pop out, so that the latch 51 is inserted into the collar 6 to position the insertion plate 5.

[0027] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. A composite filter element structure, comprising a housing (1), characterized in that: The middle end of the lower side of the shell (1) is fixedly connected to a water inlet (11), and one end of the lower side of the shell (1) is fixedly connected to a water outlet (12); a PP cotton layer (13) is inserted into the lower end of the shell (1), and an activated carbon layer (14) is inserted into the upper end of the shell (1); an air hole (15) is opened at the outer end of the shell (1), and a protective component is sleeved on the outer side of the PP cotton layer (13) and the activated carbon layer (14); the upper end of the protective component is meshedly connected to an extrusion component, and the outer end of the extrusion component is fixedly connected to a sealing component; a latch component is arranged on one side of the sealing component, and a locking component is arranged on the outer side of the lower end of the latch component.

2. A composite filter element structure according to claim 1, characterized in that: The protective component comprises an inner shell (2) sleeved on the outside of a PP cotton layer (13) and an activated carbon layer (14), and a positioning tube (21) is inserted into the lower end of the inner shell (2), and the lower end of the positioning tube (21) is fixedly connected to the water outlet (12).

3. A composite filter element structure according to claim 2, characterized in that: The extrusion assembly comprises a cover plate (3) fitted to the outer side of the upper end of the inner shell (2), and a connecting plate (31) is fixedly connected to the lower side of the middle end of the cover plate (3), the outer end of the connecting plate (31) is meshingly connected to the inner shell (2), and a first spring (32) is fixedly connected to the lower side of the middle end of the connecting plate (31), the lower end of the first spring (32) is fixedly connected to a pressure plate (33), and the lower side of the pressure plate (33) is fitted to the activated carbon layer (14), and a handle (34) is fixedly connected to the upper end of the cover plate (3).

4. A composite filter element structure according to claim 3, characterized in that: The sealing assembly comprises a protective cover (4) fixedly connected to the lower side of the outer end of the cover plate (3), and a sealing gasket (41) is fixedly connected to the inner side of the protective cover (4).

5. A composite filter element structure according to claim 4, characterized in that: The latch assembly comprises an insert plate (5) arranged at one end of the shield (4) away from the sealing gasket (41), and the upper end of the insert plate (5) is fixedly connected to the cover plate (3), a clamping block (51) is inserted inside the lower end of the insert plate (5), and one end of the clamping block (51) inserted in the insert plate (5) is fixedly connected to a second spring (52), and one end of the second spring (52) away from the clamping block (51) is fixedly connected to the insert plate (5).

6. A composite filter element structure according to claim 1, characterized in that: The locking assembly comprises a ring (6) sleeved on the outer side of the lower end of the plug plate (5), and the inner side of the ring (6) is fixedly connected to the outer shell (1), push plates (61) are inserted into the inner sides of the two ends of the ring (6), and a rubber button (62) is sleeved on the outer side of the end of the push plate (61) away from the ring (6), and the end of the rubber button (62) close to the ring (6) is fixedly connected to the ring (6).

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