Quickly detachable split type water purifier PP cotton filter core

Abstract

The application relates to a quick-disassembly split type water purifier PP cotton filter core, which comprises a PP cotton filter core, a lower plug is clamped at the bottom of the PP cotton filter core, a limiting block is slidably connected in the inner part of a sliding groove, springs are fixedly connected between the limiting block and the inner wall of the sliding groove, a bottom cover is screw-connected to the bottom of the lower plug, the limiting block is slidably connected with the bottom cover, four PP cotton filter cores are installed in the inner part of a filter cylinder, four butt pipes are fixedly connected in the inner part of the filter cylinder, the bottom surface of the bottom cover abuts against the filter cylinder, the four limiting blocks abut against the outer wall of the butt pipes, the inner diameter of the lower plug at the bottom of the PP cotton filter core is larger than the diameter of the butt pipe, the PP cotton filter core can be conveniently aligned and installed on the butt pipe, meanwhile, the four limiting blocks abut against the butt pipes, the fixing effect is achieved, and the stability is improved.

Description

Technical Field

[0001] This application relates to the field of PP cotton filter technology, and in particular to a quick-release split-type PP cotton filter for water purifiers. Background Technology

[0002] PP cotton filter cartridges are the most commonly used primary filter cartridges in water purifiers. They are mainly made of polypropylene material. In use, multiple filter cartridges are usually placed inside the filter bottle to form a sealed installation space, allowing water to flow through the filter cartridges according to the designed path. When water flows through the filter cartridges, impurities in the water, such as silt, rust, colloids, and suspended solids, are intercepted by the fiber layer of the filter cartridges. At the same time, it can adsorb some organic matter and residual chlorine in the water, further improving water quality.

[0003] However, when installing or replacing traditional PP cotton filter cartridges, the plug at the bottom of the filter cartridge is usually aligned with the pre-drilled pipe opening at the bottom of the filter bottle, and then the filter cartridge is inserted downwards so that the pipe opening is locked inside the plug. In order to ensure a seal, a plug with an inner diameter that matches the pipe opening diameter is usually selected. Therefore, when inserting the filter cartridge, it is difficult to align the plug with the pipe opening due to the narrow internal space of the filter bottle. The operation process is cumbersome and lacks flexibility. Utility Model Content

[0004] To facilitate quick alignment of the PP cotton filter cartridge with the connection port inside the filter bottle and to lock them together, thus solving the problem of difficulty in quick alignment due to the small internal space of the filter bottle, this application provides a quick-release split-type PP cotton filter cartridge for water purifiers.

[0005] This application provides a quick-release, split-type PP cotton filter element for a water purifier, which adopts the following technical solution: A quick-release split-type water purifier PP cotton filter element includes a PP cotton filter element with a docking structure at its bottom. The docking structure includes a lower plug, which engages with the bottom of the PP cotton filter element. Four sliding grooves are formed on the inner side of the lower plug, and limiting blocks are slidably connected inside the grooves. A spring is fixedly connected between the limiting blocks and the inner wall of the groove. A bottom cover is threadedly connected to the bottom of the lower plug, and the limiting blocks and the bottom cover are slidably connected. An installation structure is provided at the bottom of the PP cotton filter element, including a filter cartridge. Four PP cotton filter elements are installed inside the filter cartridge. Four connecting pipes are fixedly connected inside the filter cartridge, and these connecting pipes cooperate with adjacent lower plugs. The bottom surface of the bottom cover abuts against the filter cartridge, and the four limiting blocks abut against the outer walls of the connecting pipes.

[0006] By adopting the above technical solution, the PP cotton filter element is pressed downward, at this time the top surface of the connecting pipe is in contact with the four limiting blocks. Continue pressing the PP cotton filter element, the top surface of the connecting pipe slides and fits with the inclined surface provided on the limiting blocks, so that the limiting blocks slide outward along the sliding grooves and compress the springs until the PP cotton filter element can no longer be pressed downward. Under the reset action of the springs, the surfaces of the four limiting blocks close to the center all abut against the outer wall of the connecting pipe, and the docking of the PP cotton filter element is completed at this time. Then the same operation is repeated to complete the installation of the remaining three PP cotton filter elements, which has high operation efficiency.

[0007] Optionally, a rubber ring is abutted between the bottom surface of the PP cotton filter element and the lower plug, and a rubber pad is abutted between the top surface of the connecting pipe and the inner wall of the lower plug.

[0008] By adopting the above technical solution, the rubber ring arranged between the PP cotton filter element and the lower plug ensures the internal sealing performance of the PP cotton filter element. The rubber pad arranged at the connection between the connecting pipe and the lower plug effectively prevents unfiltered water from entering the interior of the PP cotton filter element through the gap therebetween, and improves the sealing performance.

[0009] Optionally, an inclined surface is provided on the inner side of the bottom cover, and the connecting pipe is in sliding fit with the inclined surface provided on the limiting block.

[0010] By adopting the above technical solution, the inclined surface arranged on the inner side of the bottom cover facilitates the connecting pipe to align and insert into the inner space of the lower plug. Meanwhile, the inclined surface provided on the limiting block enables the connecting pipe to drive the four limiting blocks to retract into the sliding groove when the PP cotton filter element is pressed downward, thereby not blocking the movement of the connecting pipe.

[0011] Optionally, the cross-section of the lower plug is in a "convex" shape, and the cross-section of the limiting block is in a trapezoidal structure.

[0012] By adopting the above technical solution, the lower plug is arranged in the "convex" structure, which facilitates the clamping of the protruding part of the lower plug to the bottom of the PP cotton filter element, and has strong flexibility.

[0013] Optionally, a screw rod is fixedly connected inside the filter cartridge, a cover plate is arranged at the top end of the screw rod, an adsorption structure is installed at the top end of the PP cotton filter element, the cover plate and the adsorption structure cooperate with each other, a nut is threadedly connected on the screw rod, and the bottom surface of the nut abuts against the cover plate.

[0014] By adopting the above technical solution, a screw rod is installed at the center of the filter cartridge, a cover plate is abutted against the top ends of the four PP cotton filter elements and locked by the nut, thereby realizing the clamping and fixing of the four PP cotton filter elements with strong firmness.

[0015] Optionally, the screw rod is located between four PP cotton filter elements, and four through holes are provided on the cover plate.

[0016] By adopting the above technical solution, the protruding part of the upper plug is clamped in the through hole opened on the cover plate, which improves the firmness.

[0017] Optionally, the adsorption structure includes an upper plug, the top end of the PP cotton filter element is clamped with the upper plug, and the top surface of the upper plug and the bottom surface of the cover plate abut against each other.

[0018] By adopting the above technical solution, the upper plug is clamped at the top end of the PP cotton filter element, and the cover plate abuts against the upper plug, which can effectively fix the PP cotton filter element, avoid the problem of shaking of the PP cotton filter element caused by water flow during use, and ensure the water filtration effect.

[0019] Optionally, fiber cotton is clamped at the bottom of the upper plug, the bottom of the fiber cotton is clamped with the lower plug, and a threaded groove is provided on the outer wall of the fiber cotton.

[0020] By adopting the above technical solution, after the installation of four PP cotton filter elements is completed, the upper plug with fiber cotton clamped at the bottom is clamped at the top end of the PP cotton filter element. At this time, the fiber cotton is located inside the PP cotton filter element, so when water passes through the PP cotton filter element, larger particle impurities in water can be effectively blocked on the outer layer of the PP cotton filter element, while smaller particles will continue to penetrate inward under the action of water flow, so the fiber cotton located in the inner layer can effectively filter out smaller particle impurities in water. Meanwhile, since the fiber cotton is provided with threaded grooves and the water outlet of the device is arranged at the bottom of the filter cartridge, water can flow through the fiber cotton more uniformly, which improves the filtration efficiency and reduces the situation of excessive local filtration burden.

[0021] Optionally, the cross-section of the upper plug is in a "convex"-shaped structure, and a rubber ring is abutted between the upper plug and the top surface of the PP cotton filter element.

[0022] By adopting the above technical solution, the upper plug is arranged in a "convex"-shaped structure to facilitate clamping with the top of the PP cotton filter element, and a rubber ring is arranged between the two to ensure the sealing performance inside the PP cotton filter element.

[0023] In summary, the present application includes at least one of the following beneficial technical effects: 1. A piece of fiber cotton is arranged inside the PP cotton filter element by means of clamping with the bottom of the upper plug, so that after the PP cotton filter element filters out larger particle impurities in water, the fiber cotton can adsorb the residual smaller particle impurities in water, which improves the water purification effect; 2. By setting four limiting blocks on the bottom plug of the PP cotton filter element, and making the inner diameter of the bottom plug larger than the diameter of the outlet pipe, it is easier to align the bottom plug with the outlet pipe during installation, thus improving operational efficiency. At the same time, the four limiting blocks are pressed against the outer wall of the outlet pipe, thus initially fixing the PP cotton filter element and improving stability. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connection structure between the PP cotton filter element and the upper plug of this utility model; Figure 3 for Figure 2 The diagram shown is an enlarged view of the structure of part A. Figure 4 This is a schematic diagram of the connection structure between the PP cotton filter element and the lower plug of this utility model.

[0025] Reference numerals: 1. PP cotton filter element; 2. Adsorption structure; 201. Upper plug; 202. Rubber ring; 203. Fiber cotton; 204. Threaded groove; 3. Installation structure; 301. Filter cartridge; 302. Connecting pipe; 303. Screw; 304. Cover plate; 305. Nut; 4. Connecting structure; 401. Lower plug; 402. Rubber ring; 403. Rubber pad; 404. Sliding groove; 405. Limiting block; 406. Spring; 407. Bottom cover. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0027] This application discloses a quick-release, split-type PP cotton filter element for a water purifier. (Refer to...) Figure 1 , Figure 3 and Figure 4 A quick-release split-type water purifier PP cotton filter element includes a PP cotton filter element 1, the bottom of the PP cotton filter element 1 is provided with a docking structure 4, and the bottom of the PP cotton filter element 1 is provided with an installation structure 3.

[0028] During the installation of the PP cotton filter element 1 into the filter cartridge 301, the lower plug 401 and its internal parts are first engaged at the bottom of the PP cotton filter element 1. Then, the PP cotton filter element 1 is inserted into the filter cartridge 301, and the center of the bottom cover 407 is aligned with the connecting pipe 302 inside the filter cartridge 301. Then, the PP cotton filter element 1 is pressed down. At this time, the top surface of the connecting pipe 302 abuts against the four limiting blocks 405. The PP cotton filter element 1 is pressed down, and the top surface of the connecting pipe 302 slides against the inclined surface on the limiting block 405, so that the limiting block 405 slides outward along the slide groove 404 and compresses the spring 406 until the PP cotton filter element 1 can no longer be pressed down. At this time, under the reset action of the spring 406, the side of the four limiting blocks 405 near the center abuts against the outer wall of the connecting pipe 302. At this time, the docking of the PP cotton filter element 1 is completed. Then, the same operation is repeated to complete the installation of the remaining three PP cotton filter elements 1. The operation efficiency is high. The installation structure 3 includes a filter cartridge 301, and four PP cotton filter elements 1 are installed inside the filter cartridge 301. Four connecting pipes 302 are fixedly connected inside the filter cartridge 301. The connecting pipes 302 cooperate with the adjacent lower plugs 401. The bottom surface of the bottom cover 407 abuts against the filter cartridge 301. The four limiting blocks 405 abut against the outer wall of the connecting pipes 302. When the operator fixes the four PP cotton filter elements 1, a screw 303 is installed at the center of the filter cartridge 301, and the top of the four PP cotton filter elements 1 is pressed against a cover plate 304 and locked with a nut 305, thereby achieving a strong clamping and fixing of the four PP cotton filter elements 1.

[0029] Reference Figure 1 , Figure 3 and Figure 4 A rubber ring 402 abuts between the bottom surface of the PP cotton filter element 1 and the lower plug 401. A rubber pad 403 abuts between the top surface of the connecting pipe 302 and the inner wall of the lower plug 401. An inclined surface is provided on the inner side of the bottom cover 407. The connecting pipe 302 and the inclined surface provided on the limiting block 405 are in sliding fit. The cross-section of the lower plug 401 is convex. The cross-section of the limiting block 405 is trapezoidal. By setting the lower plug 401 to a convex shape, it is easy to engage the protruding part of the lower plug 401 with the bottom of the PP cotton filter element 1, which is highly flexible. By setting a rubber ring 402 between the PP cotton filter element 1 and the lower plug 401, the internal sealing of the PP cotton filter element 1 is ensured. A rubber gasket 403 is set at the connection between the connecting pipe 302 and the lower plug 401, which effectively prevents unfiltered water from entering the PP cotton filter element 1 through the gap between the two, thus improving the sealing performance. The inner side of the bottom cover 407 is provided with a slope, which makes it easy for the connecting pipe 302 to be aligned and inserted into the internal space of the lower plug 401. At the same time, a slope is opened on the limiting block 405 so that when the PP cotton filter element 1 is pressed down, the connecting pipe 302 can drive the four limiting blocks 405 to retract into the sliding groove 404, thereby not obstructing the movement of the connecting pipe 302.

[0030] Reference Figure 1 , Figure 2 and Figure 3 The filter cartridge 301 is internally fixedly connected to a screw 303, and the top of the screw 303 is provided with a cover plate 304. The top of the PP cotton filter element 1 is installed with an adsorption structure 2. The cover plate 304 and the adsorption structure 2 cooperate with each other. A nut 305 is threadedly connected to the screw 303. The bottom surface of the nut 305 abuts against the cover plate 304. The screw 303 is located between four PP cotton filter elements 1. The cover plate 304 has four through holes. The stability is improved by engaging the protruding part of the upper plug 201 with the through hole opened on the cover plate 304.

[0031] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The adsorption structure 2 includes an upper plug 201, the top of the PP cotton filter element 1 is engaged with the upper plug 201, the top surface of the upper plug 201 abuts against the bottom surface of the cover plate 304, the bottom of the upper plug 201 is engaged with the fiber cotton 203, the bottom of the fiber cotton 203 is engaged with the lower plug 401, and the outer wall of the fiber cotton 203 is provided with a threaded groove 204; The plug 201 is snapped onto the top of the PP cotton filter element 1, and the cover plate 304 abuts against the plug 201, which effectively fixes the PP cotton filter element 1 and prevents it from shaking due to water flow during use, thus ensuring the water filtration effect. After the installation of the four PP cotton filter elements 1 is completed, the upper plug 201 with the fiber cotton 203 snapped onto the bottom is snapped onto the top of the PP cotton filter element 1. At this time, the fiber cotton 203 is located inside the PP cotton filter element 1. When water passes through the PP cotton filter element 1, it can effectively block larger particles of impurities in the water on the outer layer of the PP cotton filter element 1, while smaller particles will continue to penetrate inward under the action of water flow. Thus, the fiber cotton 203 located in the inner layer can effectively filter out smaller particles of impurities in the water. At the same time, since the fiber cotton 203 has a threaded groove 204 and the water outlet of the equipment is located at the bottom of the filter cylinder 301, the water flow is more evenly through the fiber cotton 203, improving the filtration efficiency and reducing the situation of excessive local filtration burden.

[0032] The embodiment of the present application discloses an implementation principle of a quickly detachable split PP cotton filter element for a water purifier: during the process of installing the PP cotton filter element 1 into the filter cartridge 301, the lower plug 401 and the components inside it are first clamped to the bottom end of the PP cotton filter element 1. By arranging the lower plug 401 in a "convex" structure, the protruding part of the lower plug 401 can be conveniently clamped to the bottom of the PP cotton filter element 1, which has high flexibility. Then the PP cotton filter element 1 is inserted into the filter cartridge 301, the center position of the bottom cover 407 is aligned with the butt pipe 302 inside the filter cartridge 301, and then the PP cotton filter element 1 is pressed downward. At this time, the top surface of the butt pipe 302 abuts against the four limit blocks 405, and the PP cotton filter element 1 continues to be pressed downward. An inclined surface is arranged on the inner side of the bottom cover 407, which facilitates the butt pipe 302 to align and insert into the inner space of the lower plug 401. Meanwhile, an inclined surface is provided on the limit block 405, so that when the PP cotton filter element 1 is pressed downward, the butt pipe 302 can drive the four limit blocks 405 to retract into the chute 404, thereby not blocking the movement of the butt pipe 302. At this time, the top surface of the butt pipe 302 is in sliding fit with the inclined surface opened on the limit block 405, so that the limit block 405 slides outward along the chute 404 and compresses the spring 406 until the PP cotton filter element 1 cannot be pressed downward any further. At this time, under the restoring action of the spring 406, the sides of the four limit blocks 405 close to the center all abut against the outer wall of the butt pipe 302, and the butting of the PP cotton filter element 1 is completed. Then the same operation is repeated to complete the installation of the remaining three PP cotton filter elements, which has high operation efficiency. Meanwhile, by arranging a rubber ring 402 between the PP cotton filter element 1 and the lower plug 401, the sealing performance inside the PP cotton filter element 1 is ensured. A rubber gasket 403 is arranged at the joint between the butt pipe 302 and the lower plug 401, which effectively prevents unfiltered water from entering the interior of the PP cotton filter element 1 through the gap between the two, improving the sealing performance. After completing the installation of the four PP cotton filter elements 1, the upper plug 201 is arranged in a "convex" structure to facilitate clamping with the top of the PP cotton filter element 1. Meanwhile, a rubber ring 202 is arranged between the two to ensure the sealing performance inside the PP cotton filter element 1. Then the upper plug 201 with fiber cotton 203 clamped at the bottom is clamped to the top end of the PP cotton filter element 1, and at this time the fiber cotton 203 is located inside the PP cotton filter element 1. Therefore, when water passes through the PP cotton filter element 1, larger particle impurities in water can be effectively blocked on the outer layer of the PP cotton filter element 1, while smaller particles will continue to penetrate inward under the action of water flow, so the fiber cotton 203 located in the inner layer can effectively filter out smaller particle impurities in water. Meanwhile, since the fiber cotton 203 is provided with a thread groove 204, and the water outlet of the device is arranged at the bottom of the filter cartridge 301, the water flow can pass through the fiber cotton 203 more uniformly, which improves the filtration efficiency and reduces the situation of excessive local filtration burden. Then, the four PP cotton filter elements 1 need to be fixed, a screw rod 303 is installed at the center position of the filter cartridge 301, and a cover plate 304 is abutted against the top ends of the four PP cotton filter elements 1,The protruding part of the upper plug 201 is engaged with the through hole in the cover plate 304, improving its firmness. It is then locked in place by the nut 305, thus clamping and fixing the four PP cotton filter elements 1 securely. This strong grip effectively secures the PP cotton filter elements 1, preventing them from shaking due to water flow during use and ensuring the water filtration effect.

[0033] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quick-release split-type water purifier PP cotton filter element, comprising a PP cotton filter element (1), characterized in that: A butt joint structure (4) is arranged at the bottom of the polypropylene cotton filter element (1), the butt joint structure (4) comprises a lower plug (401), the lower plug (401) is clamped at the bottom of the polypropylene cotton filter element (1), four sliding grooves (404) are formed on the inner side of the lower plug (401), a limiting block (405) is slidably connected inside the sliding groove (404), a spring (406) is fixedly connected between the limiting block (405) and the inner wall of the sliding groove (404), a bottom cover (407) is in threaded connection with the bottom of the lower plug (401), the limiting block (405) is slidably connected with the bottom cover (407), an installation structure (3) is arranged at the bottom of the polypropylene cotton filter element (1), the installation structure (3) comprises a filter cartridge (301), four said polypropylene cotton filter elements (1) are all installed inside the filter cartridge (301), four butt joint pipes (302) are fixedly connected inside the filter cartridge (301), the butt joint pipes (302) cooperate with the adjacent lower plug (401), the bottom surface of the bottom cover (407) is in contact with the filter cartridge (301), and all four limiting blocks (405) are in contact with the outer wall of the butt joint pipe (302).

2. The quick-release split-type PP cotton filter element for a water purifier according to claim 1, characterized in that: A rubber ring (402) is in contact between the bottom surface of the polypropylene cotton filter element (1) and the lower plug (401), and a rubber pad (403) is in contact between the top surface of the butt joint pipe (302) and the inner wall of the lower plug (401).

3. The quick-release split-type PP cotton filter element for a water purifier according to claim 1, characterized in that: An inclined surface is provided on the inner side of the bottom cover (407), and the butt joint pipe (302) is in sliding fit with the inclined surface provided on the limiting block (405).

4. The quick-release split-type PP cotton filter element for a water purifier according to claim 2, characterized in that: The cross section of the lower plug (401) is in a convex structure, and the cross section of the limiting block (405) is in a trapezoidal structure.

5. The quick-release split-type PP cotton filter element for a water purifier according to claim 1, characterized in that: A screw rod (303) is fixedly connected inside the filter cartridge (301), a cover plate (304) is arranged at the top end of the screw rod (303), an adsorption structure (2) is installed at the top end of the polypropylene cotton filter element (1), the cover plate (304) cooperates with the adsorption structure (2), a nut (305) is in threaded connection with the screw rod (303), and the bottom surface of the nut (305) is in contact with the cover plate (304).

6. A quick-release split-type PP cotton filter element for a water purifier according to claim 5, characterized in that: The screw rod (303) is located between the four polypropylene cotton filter elements (1), and four through holes are opened on the cover plate (304).

7. A quick-release split-type PP cotton filter element for a water purifier according to claim 5, characterized in that: The adsorption structure (2) comprises an upper plug (201), the upper plug (201) is clamped at the top end of the polypropylene cotton filter element (1), and the top surface of the upper plug (201) is in contact with the bottom surface of the cover plate (304).

8. A quick-release split-type PP cotton filter element for a water purifier according to claim 7, characterized in that: Fiber cotton (203) is clamped at the bottom of the upper plug (201), the bottom of the fiber cotton (203) is clamped with the lower plug (401), and a thread groove (204) is opened on the outer wall of the fiber cotton (203).

9. A quick-release split-type PP cotton filter element for a water purifier according to claim 8, characterized in that: The cross section of the upper plug (201) is in a convex structure, and a rubber ring (202) is in contact between the upper plug (201) and the top surface of the polypropylene cotton filter element (1).

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