Quick connection type composite filter element

Abstract

The utility model discloses a quick -wired composite filter core relates to filter core technical field, it includes filter bucket, is provided with water inlet channel and water outlet channel on the filter bucket, and water outlet channel and water inlet channel are located the same end of filter bucket, and is provided with multistage filter layer and fine filter chamber in the filter bucket, and multistage filter layer is used for to water flow in turn carries out step by step filtration, and fine filter chamber is used for collecting the water flow after filtering after last stage filter layer, and water flow enters filter bucket after through water inlet channel, and enters into fine filter chamber after in turn after multistage filter layer filtration, be equipped with water outlet conduit in the filter bucket, and water outlet conduit leads through fine filter chamber and water outlet channel, and the water flow in fine filter chamber is introduced to water outlet channel through water outlet conduit, and from water outlet channel flow. The utility model discloses a composite filter core compact structure, can improve the filtration efficiency, and can also improve the filtration effect.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, specifically to a quick-connect composite filter. Background Technology

[0002] With the improvement of people's living standards and the strengthening of drinking water safety awareness, water purification equipment has become an important product to ensure the safety of family drinking water. As the core functional component of water purifiers, the performance and structure of filter cartridges directly affect the water purification effect, ease of use and maintenance costs.

[0003] Traditional water filters typically use independent single-stage filtration modules. To achieve multi-stage filtration, multiple independently functioning filter elements, pipes, and quick-connect fittings are usually connected in series. This connection takes up a lot of space, has a non-compact structure, and results in low filtration efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a quick-connect composite filter element with a compact structure, which improves filtration efficiency and enhances filtration effect.

[0005] To achieve the above objectives, the solution of this utility model is as follows: A quick-connect composite filter cartridge includes a filter barrel with an inlet channel and an outlet channel located at the same end. The filter barrel contains multiple filtration layers and a fine filtration chamber. The multiple filtration layers sequentially filter the water flow, while the fine filtration chamber collects the water flow after it has passed through the final filtration layer. The water flow enters the filter barrel through the inlet channel, passes through the multiple filtration layers, and then enters the fine filtration chamber. An outlet conduit connects the fine filtration chamber and the outlet channel. Water from the fine filtration chamber is guided through the outlet conduit into the outlet channel and flows out from there. Furthermore, the multi-stage filtration layer consists of three stages: the first stage is the pre-filtration layer, the second stage is the middle filtration layer, and the last stage is the post-filtration layer. The pre-filtration layer, middle filtration layer, and post-filtration layer sequentially filter the water flow.

[0006] Furthermore, multiple water distribution chambers are provided inside the filter barrel, and at the end near the inlet and outlet channels. All the water distribution chambers are connected to the outlet end of the inlet channel, and the water flow is distributed into each water distribution chamber after it comes out from the outlet end of the inlet channel.

[0007] Specifically, the water distribution chamber has an outlet opening facing the multi-stage filtration layer, and the first-stage filtration layer is covered and welded to the outlet opening of the water distribution chamber.

[0008] Specifically, the filter cartridge contains a chamber with multiple filtration layers arranged sequentially from bottom to top within the chamber. Inlet and outlet channels connect to the chamber from the bottom of the filter cartridge. A central column protrudes downwards from the center of the bottom of the filter cartridge. The outlet end of the outlet channel is located at the center of the lower end of the central column, while the inlet end extends upwards to the center of the lower end of the chamber. A circumferential array of water distribution chambers surrounds the inlet end of the outlet channels. The inlet end of the inlet channels is located on the side wall of the central column, and the outlet end surrounds the inlet end of the outlet channels, situated between the water distribution chambers and the inlet end of the outlet channels. The water distribution chambers and the inlet channels are interconnected.

[0009] Furthermore, the fine filtration chamber is located inside the last stage of the filtration layer. One end of the conduit is connected to the fine filtration chamber, and the other end passes through other filtration layers and connects to the water outlet channel.

[0010] Specifically, the filter cartridge contains a chamber with multiple filtration layers arranged sequentially from bottom to top within the chamber. Inlet and outlet channels connect to the chamber from the bottom of the filter cartridge. The final filtration layer comprises an annular filter layer, an upper cover, and a lower cover. A channel runs vertically through the middle of the filter layer. The upper cover seals the upper end of the channel, and the lower cover seals the lower end, forming the fine filtration chamber. A notch is provided at the edge of the lower cover to expose the edge of the filter layer, allowing water flowing through the previous filtration layer to enter the filter layer from the exposed edge and then enter the fine filtration chamber after filtration. A through-hole is provided within the channel area of ​​the lower cover, connecting to the fine filtration chamber. This through-hole allows the upper end of the outlet conduit to be inserted, connecting the outlet conduit to the fine filtration chamber. The lower end of the outlet conduit extends downwards and connects to the inlet end of the outlet channel.

[0011] Furthermore, the edge of the lower cover protrudes beyond the outer wall of the filter layer so that when the final filter layer is placed into the chamber, the edge of the lower cover abuts against the inner wall of the chamber to limit the lower end of the filter layer.

[0012] Specifically, the central filter layer is filled with water purification filter media.

[0013] Furthermore, a screw-in buckle is provided on the outside of the filter bucket, and at one end near the water inlet and outlet channels. The screw-in buckle is screwed into the screw-in slot structure of the water purifier.

[0014] After adopting the above solution, the beneficial effects of this utility model are as follows: In this invention, water enters the filter cartridge through the inlet channel, passes through multiple filtration layers, and then enters the fine filtration chamber. The water is then discharged through an outlet pipe to the outlet channel at the same end as the inlet channel. The water enters from one end of the filter cartridge, passes through multiple filtration layers, and then returns to that end. Since all the filtration layers are integrated within the filter cartridge, the filter element is structurally compact, improving filtration efficiency. This eliminates the need for multiple independent filter elements for multi-stage filtration. Furthermore, the multiple filtration layers form a multi-stage gradient filtration system, which, compared to a single filtration layer, can more comprehensively remove various pollutants from the water, enhancing the reliability and thoroughness of water purification. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external structure of the filter element of this utility model; Figure 2 This is a cross-sectional view of the internal structure of the filter element of this utility model; Figure 3 This is a cross-sectional view of the lower end of the filter barrel of the filter element of this utility model; Figure 4 This is a schematic diagram of the structure of the novel water distribution chamber; Figure 5 This is a cross-sectional view of the post-filter layer of this utility model; Figure 6 This is a bottom view of the post-filter layer of this utility model.

[0016] Label Explanation: 1. Filter barrel; 10. Chamber; 11. Central column; 12. Inlet channel; 13. Outlet channel; 14. Pre-filter layer; 15. Intermediate filter layer; 16. Post-filter layer; 161. Filter layer; 162. Fine filtration chamber; 163. Top cover; 1631. First piston; 164. Bottom cover; 1641. Notch; 1642. Through hole; 1643. Second piston; 165. Channel; 17. Water distribution chamber; 18. Outlet conduit; 19. Screw-in buckle; 20. Guide slope; 21. Partition; 22. Protrusion; 23. Rib. Detailed Implementation

[0017] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0018] like Figures 1 to 6As shown, this embodiment provides a quick-connect composite filter element, including a filter barrel 1. The filter barrel 1 is provided with an inlet channel 12 and an outlet channel 13, which are located at the same end of the filter barrel 1. The filter barrel 1 is provided with a multi-stage filtration layer and a fine filtration chamber 162. The multi-stage filtration layer is used to filter the water flow step by step. The fine filtration chamber 162 is used to collect the water flow after it has been filtered by the last filtration layer. After the water flow enters the filter barrel 1 through the inlet channel 12, it passes through the multi-stage filtration layer and then enters the fine filtration chamber 162. The filter barrel 1 is provided with an outlet conduit 18, which connects the fine filtration chamber 162 and the outlet channel 13. The water flow in the fine filtration chamber 162 is guided into the outlet channel 13 through the outlet conduit 18 and flows out from the outlet channel 13. Preferably, the multi-stage filtration layer is a three-stage filtration layer, with the first stage being a pre-filtration layer 14, the second stage being a middle filtration layer 15, and the last stage being a post-filtration layer 16. The pre-filtration layer 14, the middle filtration layer 15, and the post-filtration layer 16 filter the water flow step by step in sequence.

[0019] Furthermore, multiple water distribution chambers 17 are provided inside the filter tank 1, and at the end near the water inlet channel 12 and the water outlet channel 13. All multiple water distribution chambers 17 are connected to the water outlet end of the water inlet channel 12. After the water flows out from the water outlet end of the water inlet channel 12, it is distributed into each water distribution chamber 17, so as to make the water inlet more uniform and make the subsequent water flow into the pre-filter layer 14, the middle filter layer 15 and the post-filter layer 16 more uniform, thus avoiding the concentrated accumulation of filtered dirt.

[0020] Furthermore, the water distribution chamber 17 is provided with a water outlet opening facing the multi-stage filtration layer, and the first-stage filtration layer (i.e., the pre-filtration layer 14) is covered and welded to the water outlet opening of the water distribution chamber 17.

[0021] Specifically, the filter cartridge 1 is provided with a chamber 10, in which multi-stage filtration layers are arranged sequentially from bottom to top. The inlet channel 12 and outlet channel 13 connect from the lower end of the filter cartridge 1 to the chamber 10. A central column 11 protrudes downward from the center of the lower end of the filter cartridge 1. The outlet end of the outlet channel 13 is located at the center of the lower end of the central column 11. The inlet end of the outlet channel 13 extends upward to the center of the lower end of the chamber 10. A water distribution chamber 17 is arranged in a circular array around the inlet end of the outlet channel 13. The inlet end of the inlet channel 12... The water outlet end of the water inlet channel 12 is arranged around the water inlet end of the water outlet channel 13 on the side wall of the central column 11, and is located between the water distribution chamber 17 and the water inlet end of the water outlet channel 13, and the water distribution chamber 17 and the water inlet channel 12 are connected; specifically, the water outlet opening of the water distribution chamber 17 faces upward, the multi-stage filter layer is located above the water distribution chamber 17, and the first-stage filter layer is welded to the water outlet opening of the water distribution chamber 17; specifically, the first-stage filter layer is preferably a filter screen, but it can also be other structures that can achieve the filtration function.

[0022] Specifically, the lower end face edge of chamber 10 is provided with annular protrusions 23 arranged at intervals, which are used to weld the edge of the filter screen. A partition 21 is provided between adjacent water distribution chambers 17. The upper end of the partition 21 is provided with a protrusion 22, which is inserted into the filter screen to position it. The filter screen and the upper end of the partition 21 are welded together. The filter screen has an opening in the center. The edge of the opening of the filter screen is welded together with the edge of the water inlet end of the water outlet channel 13. The lower end of the water outlet conduit 18 passes through the opening and is inserted into the water inlet end of the water outlet channel 13. It can be understood that the lower end of the water outlet conduit 18 can also be integrally formed on the water inlet end of the water outlet channel 13. The preferred method of this utility model is to install it in a detachable plug-in manner.

[0023] Furthermore, the fine filtration chamber 162 is located inside the last stage of filtration (i.e., the post-filtration layer 16). One end of the conduit is connected to the fine filtration chamber 162, and the other end passes through other filtration layers and then connects to the water outlet channel 13, that is, it passes through the intermediate filtration layer 15 and the pre-filtration layer 14 and then connects to the water outlet channel 13.

[0024] Specifically, the filter cartridge 1 is provided with a chamber 10, and multiple filtration layers are arranged sequentially from bottom to top within the chamber 10. The inlet channel 12 and outlet channel 13 connect from the lower end of the filter cartridge 1 to the chamber 10. The final filtration layer includes an annular filter layer 161, an upper cover 163, and a lower cover 164. The filter layer 161 has a vertically connected channel 165 in the middle. The upper cover 163 covers the upper end of the filter layer 161, sealing the upper end of the channel 165. The lower cover 164 covers the lower end of the filter layer 161, sealing the lower end of the channel 165, thus forming the fine filtration chamber 162. The lower cover 164 has a notch 1641 at its edge, which exposes the edge of the filter layer 161, allowing water flowing through the previous filtration layer to pass through the exposed edge of the filter layer 161. The water enters the filter layer 161 from the edge and then enters the fine filtration chamber 162 after being filtered by the filter layer 161. Specifically, there are multiple notches 1641, which are spaced apart and distributed along the edge of the lower cover 164. The water can flow evenly from the notches 1641 into the filter layer 161, and then enter the fine filtration chamber 162 after being filtered by the filter layer 161. The fine filtration chamber 162 can buffer the water pressure of the filtered water to maintain a stable water pressure of the pure water exported to the outlet channel 13. The lower cover 164 has a through hole 1642 within the range of the channel 165. The through hole 1642 is connected to the fine filtration chamber 162 and is used to insert the upper end of the outlet conduit 18 to connect the outlet conduit 18 and the fine filtration chamber 162. The lower end of the outlet conduit 18 extends downward and connects with the inlet end of the outlet channel 13.

[0025] Preferably, the filter layer 161 is made of PP cotton, which has a channel that is open at both ends. A first piston 1631 protrudes downward from the center of the upper cover 163. The first piston 1631 is inserted into the channel from the upper end of the channel, thereby covering the upper end of the PP cotton and sealing the upper end of the channel. A second piston 1643 protrudes upward from the center of the lower cover 164. The second piston 1643 is inserted into the channel from the lower end of the channel, thereby covering the lower end of the PP cotton and sealing the lower end of the channel. The through hole 1642 is also located within the range of the second piston 1643 and passes through the second piston 1643 to conduct through the fine filter chamber 162.

[0026] Furthermore, the edge of the lower cover 164 protrudes from the outer wall of the filter layer 161 so that when the last filter layer is placed into the chamber 10, the edge of the lower cover 164 abuts against the inner wall of the chamber 10 to limit the lower end of the filter layer 161, making it less likely to shake, so that the water outlet tube 18 can be inserted into the through hole 1642. Furthermore, a guide slope 20 is provided around the through hole 1642, which can guide the upper end of the water outlet tube 18 into the through hole 1642, thereby making it easier for the water outlet tube 18 to be inserted into the through hole 1642.

[0027] Furthermore, the central filter layer 15 is filled with water purification filter media, which includes, but is not limited to, activated carbon, quartz sand, and synthetic filter membranes.

[0028] Furthermore, a screw-in buckle 19 is provided on the outside of the filter bucket 1, and at one end near the water inlet channel 12 and the water outlet channel 13. The screw-in buckle 19 is screwed into the screw-in slot structure of the water purifier.

[0029] The directional terms used in this specification are defined relative to the structures shown in the accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0030] The above description is only a preferred embodiment of this utility model and is not intended to limit the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. A quick-connect composite filter element, characterized in that: The filter includes a filter barrel with an inlet channel and an outlet channel located at the same end. Inside the filter barrel, there are multiple filtration layers and a fine filtration chamber. The multiple filtration layers are used to filter the water flow step by step, and the fine filtration chamber is used to collect the water flow after it has been filtered by the last filtration layer. After the water flow enters the filter barrel through the inlet channel, it passes through the multiple filtration layers in sequence before entering the fine filtration chamber. The filter cartridge is equipped with a water outlet pipe, which connects the fine filtration chamber and the water outlet channel. The water in the fine filtration chamber is guided into the water outlet channel through the water outlet pipe and flows out from the water outlet channel.

2. The quick-connect composite filter element as described in claim 1, characterized in that: The multi-stage filtration system consists of three stages: the first stage is the pre-filtration layer, the second stage is the middle filtration layer, and the last stage is the post-filtration layer. The pre-filtration layer, middle filtration layer, and post-filtration layer filter the water flow step by step in sequence.

3. A quick-connect composite filter element as described in claim 1 or 2, characterized in that: Inside the filter barrel, and at the end near the inlet and outlet channels, there are multiple water distribution chambers. All of these chambers are connected to the outlet of the inlet channel, and the water flow is distributed into each water distribution chamber after exiting the outlet of the inlet channel.

4. The quick-connect composite filter element as described in claim 3, characterized in that: The water distribution chamber has an outlet facing the multi-stage filtration layer, and the first-stage filtration layer is covered and welded to the outlet of the water distribution chamber.

5. A quick-connect composite filter element as described in claim 3, characterized in that: The filter cartridge contains a chamber with multiple filtration layers arranged sequentially from bottom to top. Inlet and outlet channels connect to the chamber from the bottom of the filter cartridge. A central column protrudes downwards from the center of the bottom of the filter cartridge. The outlet end of the outlet channel is located at the center of the lower end of the central column, while the inlet end extends upwards to the center of the lower end of the chamber. A circumferential array of water distribution chambers surrounds the inlet end of the outlet channels. The inlet end of the inlet channels is located on the side wall of the central column, and the outlet end surrounds the inlet end of the outlet channels, situated between the water distribution chambers and the inlet end of the outlet channels. The water distribution chambers and the inlet channels are interconnected.

6. A quick-connect composite filter element as described in claim 1 or 2, characterized in that: The fine filtration chamber is located inside the last stage of the filtration layer. One end of the conduit is connected to the fine filtration chamber, and the other end passes through other filtration layers and connects to the water outlet channel.

7. A quick-connect composite filter element as described in claim 6, characterized in that: The filter cartridge contains a chamber with multiple filtration layers arranged sequentially from bottom to top within the chamber. The inlet and outlet water channels connect to the chamber from the bottom of the filter cartridge. The final filtration layer includes an annular filter layer, an upper cover, and a lower cover. A channel is provided in the middle of the filter layer, allowing for vertical flow. The upper cover is positioned over the upper end of the filter layer and blocks the upper end of the channel. The lower cover is positioned over the lower end of the filter layer and blocks the lower end of the channel, thus forming the fine filtration chamber. The lower cover has a notch at the edge to expose the edge of the filter layer. Water flowing through the previous filter layer can enter the filter layer from the exposed edge and then enter the fine filter chamber after being filtered by the filter layer. The lower cover has a through hole within the channel area, which connects to the fine filtration chamber. The upper end of the water outlet pipe is inserted to connect the water outlet pipe and the fine filtration chamber. The lower end of the water outlet pipe extends downward and connects to the water inlet end of the water outlet channel.

8. A quick-connect composite filter element as described in claim 7, characterized in that: The edge of the lower cover protrudes from the outer wall of the filter layer so that when the last filter layer is placed into the chamber, the edge of the lower cover abuts against the inner wall of the chamber to limit the lower end of the filter layer.

9. A quick-connect composite filter element as described in claim 2, characterized in that: The central filter layer is filled with water purification filter media.

10. A quick-connect composite filter element as described in claim 1, characterized in that: A screw-in buckle is provided on the outside of the filter cartridge, at one end near the water inlet and outlet channels. The screw-in buckle is screwed into the screw-in slot structure of the water purifier.

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