Water purifying filter core with track etching membrane

Abstract

The utility model relates to water purification filter element technical field, concretely relates to a water purification filter element with track etching membrane, including the casing, the top of casing is connected with the top cover, the bottom fixed mounting of casing has the bottom, the centre of casing inside movable mounting has the filter cover, the inside of casing and located filter cover's outside movable mounting has the slow flow cover, the top of bottom and located filter cover's bottom end sliding connection has the locating seat of bottom, fixed connection has spring between locating seat and bottom, the inside of bottom is provided with the accumulation cavity, the position department of bottom bottom with accumulation cavity corresponding position is connected with the blowdown plug of screw thread, the inside of slow flow cover is provided with slow flow channel, is provided with a plurality of water outlet holes on the inner side wall of slow flow cover, the utility model discloses the high -efficient filtration, self -cleaning and maintenance convenience of water purification filter element are realized through the design, and the water purification effect and service life have been improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of water purification filter technology, specifically to a water purification filter with a track etching membrane. Background Technology

[0002] Water purifier filter cartridges typically contain KDF and activated carbon. The filter cartridge is designed to purify polluted water to a state suitable for production and daily life, that is, to achieve a certain level of cleanliness, remove solid particles from the water, and filter out harmful chemical components. Track etching membranes are a type of microporous filter membrane prepared using the track etching method, which can be used in the field of water purification to filter water sources.

[0003] According to the search, CN213771569U discloses a water filter element with a track etching membrane, including a shell and a filter element assembly disposed inside the shell. A water inlet is provided in the middle of one end of the shell, and a clean water outlet is provided in the middle of the other end of the shell away from the water inlet. The filter element assembly includes a top cover, a bottom cover, an activated carbon layer, an inner protective layer and an outer protective layer. The activated carbon layer is fixed between the top cover and the bottom cover. The outer surface of the activated carbon layer is wrapped with the outer protective layer, and the inner surface of the activated carbon layer is wrapped with the inner protective layer. The top cover is fixed to the inner wall of the shell on the side near the clean water outlet. The above-mentioned utility model can improve the encapsulation of the activated carbon layer, and the addition of the track etching membrane can further improve the filtration effect, so as to solve the problems of insufficient encapsulation and incomplete filtration of the existing filter cartridges. However, after the filter cartridge assembly has been used for a long time, the trapped pollutants inside it gradually accumulate. The outer shell is closed, making it inconvenient to maintain the internal filter cartridge assembly and remove the trapped pollutants in time, resulting in filter cartridge blockage, activated carbon micropore blockage and reduced throughput of track etching membrane. This not only reduces the convenience of maintenance of the water purification filter cartridge, but also reduces the water purification effect of the water purification filter cartridge.

[0004] Therefore, it is of great importance to design a water filter cartridge with a track etching membrane to solve the above-mentioned defects. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model designs a water purification filter element with a track etching membrane. The purpose of this water purification filter element is to solve the technical problem that the existing water purification filter element is inconvenient to maintain the internal filter element components, which not only reduces the convenience of maintenance of the water purification filter element, but also reduces the water purification effect of the water purification filter element.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A water purification filter cartridge with a track etching membrane includes a housing, a top cover threadedly connected to the top of the housing, a bottom cover fixedly installed at the bottom of the housing, a filter sleeve movably installed at the center inside the housing, and a flow-slowing sleeve movably installed inside the housing and outside the filter sleeve. A positioning seat is slidably connected to the top of the bottom cover and the bottom end of the filter sleeve. A spring is fixedly connected between the positioning seat and the bottom cover. An accumulation cavity is opened inside the bottom cover. A drain plug is threadedly connected to the bottom of the bottom cover at the position corresponding to the accumulation cavity. The slow-flow sleeve has a slow-flow channel inside, and multiple sets of water outlet holes are opened on the inner side wall of the slow-flow sleeve.

[0007] As a preferred embodiment of this utility model, a first rubber sealing ring is sleeved on the outer side of the positioning seat, a drain hole is opened at the bottom end of the accumulation cavity, and a rubber sealing plug is fixedly connected at the connection between the top of the drain plug and the accumulation cavity.

[0008] As a preferred embodiment of this utility model, the bottom of the bottom cover is fixedly connected to the housing by multiple sets of fixing screws, and a second rubber sealing ring is sleeved at the connection between the bottom cover and the housing.

[0009] As a preferred embodiment of this utility model, the top of the slow-flow sleeve is provided with a water guide groove, and the slow-flow channel is designed with a spiral structure.

[0010] As a preferred embodiment of this utility model, the multiple sets of water outlet holes are all funnel-shaped, and the diameter of the multiple sets of water outlet holes decreases sequentially from the inside to the outside.

[0011] As a preferred embodiment of this utility model, a mounting bracket is fixedly installed on the top of the top cover, and the top cover is fixedly connected to the mounting bracket by multiple sets of mounting screws.

[0012] As a preferred embodiment of this utility model, the top cover has a water inlet hole and a drain hole at its left and right ends, respectively. A third rubber sealing ring is embedded at the connection between the top of the housing and the top cover, and a fourth rubber sealing ring is embedded at the connection between the inside of the housing and the top cover.

[0013] As a preferred embodiment of this utility model, the upper and lower ends of the filter sleeve are both fitted with a fifth rubber sealing ring, and the interior of the filter sleeve is provided with an outer protective layer, an activated carbon layer and an inner protective layer from the outside to the inside.

[0014] As a preferred embodiment of this utility model, a water outlet is fixedly connected inside the housing and at the top of the filter sleeve, and a track etching membrane is fixedly connected to the top of the water outlet.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, the design of the shell, top cover, bottom cover, and filter sleeve is such that the accumulation cavity inside the bottom cover is used to collect the pollutants trapped during the filtration process. The drain plug is threadedly connected to the bottom of the bottom cover at the position corresponding to the accumulation cavity, which facilitates the user to regularly clean the trapped pollutants in the accumulation cavity and ensures continuous and efficient filtration inside the shell. A first rubber sealing ring is fitted on the outside of the positioning seat to ensure the sealing between the positioning seat and the bottom cover and prevent water from seeping out from the gaps. A rubber sealing plug is fixedly connected at the connection between the top of the drain plug and the accumulation cavity, further enhancing the drainage. The sealing performance of the holes ensures that there is no water leakage when the drain plug is tightly closed. The bottom of the cover is fixed to the housing with multiple sets of fixing screws, ensuring a stable connection between the cover and the housing and preventing loosening during use. A second rubber sealing ring is fitted at the connection between the cover and the housing, providing additional sealing protection and effectively preventing water leakage from the connection between the cover and the housing, ensuring the sealing performance of the housing. After removing the top and bottom covers, a comprehensive cleaning and maintenance of the interior can be carried out, thereby improving the convenience of cleaning and maintaining the water filter element and ensuring the continuous and efficient filtration of the water filter element.

[0016] 2. In this utility model, through the cooperative design of the slow-flow sleeve and the filter sleeve, the water inlet hole is used to introduce the water to be purified, and the drain hole discharges the purified water after being treated by the filter element. After the water enters the shell, it is guided by the water guide groove opened on the top of the slow-flow sleeve to smoothly enter the slow-flow channel. The slow-flow channel inside the slow-flow sleeve has a spiral structure design, which can slow down the water flow speed and allow the water to stay in the filter element for a longer time, thereby improving the filtration effect. The multiple sets of funnel-shaped water outlet holes can not only prevent impurities from clogging the water outlet holes when discharged, but also increase the flow velocity when the water is discharged to impact the outside of the filter sleeve, cleaning the trapped pollutants attached to the outside, thus achieving the effect of improving filtration efficiency and self-cleaning. This not only enhances the filtration performance, but also extends the service life and reduces maintenance costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the housing of this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view at point B in the middle; Figure 5 This is a schematic diagram of the internal structure of the filter sleeve of this utility model; Figure 6 This is a schematic diagram of the external structure of the filter sleeve of this utility model.

[0018] In the diagram: 1. Shell; 2. Top cover; 201. Mounting bracket; 202. Mounting screw; 203. Water inlet; 204. Drain hole; 205. Second rubber sealing ring; 206. Third rubber sealing ring; 3. Bottom cover; 301. Positioning seat; 302. Spring; 303. Accumulation chamber; 304. Drain plug; 305. First rubber sealing ring; 306. Drain hole; 307. Rubber sealing plug; 308. Fixing screw; 309. Second rubber sealing ring; 4. Filter sleeve; 401. Fifth rubber sealing ring; 402. Outer protective layer; 403. Activated carbon layer; 404. Inner protective layer; 405. Water outlet; 406. Track etching membrane; 5. Slow flow sleeve; 501. Slow flow channel; 502. Water outlet; 503. Water guide groove. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] Example: Please refer to Figures 1-6 This utility model provides a technical solution: A water filter cartridge with a track etching membrane includes a housing 1, a top cover 2 threadedly connected to the top of the housing 1, a bottom cover 3 fixedly installed at the bottom of the housing 1, a filter sleeve 4 movably installed at the center inside the housing 1, and a flow-retarding sleeve 5 movably installed inside the housing 1 and outside the filter sleeve 4.

[0021] First, a positioning seat 301 is slidably connected to the top of the bottom cover 3 and the bottom end of the filter sleeve 4. A spring 302 is fixedly connected between the positioning seat 301 and the bottom cover 3. An accumulation cavity 303 is opened inside the bottom cover 3. A drain plug 304 is threadedly connected to the bottom of the bottom cover 3 at the position corresponding to the accumulation cavity 303. A first rubber sealing ring 305 is sleeved on the outside of the positioning seat 301. A drain hole 306 is opened at the bottom end of the accumulation cavity 303. A rubber sealing plug 307 is fixedly connected to the connection between the top of the drain plug 304 and the accumulation cavity 303. The bottom of the filter sleeve 4 is fixedly connected to the housing 1 by multiple sets of fixing screws 308. A second rubber sealing ring 309 is fitted at the connection between the bottom cover 3 and the housing 1. After the filter sleeve 4 is installed inside the housing 1, its upper and lower ends are positioned by the top of the housing 1 and the bottom cover 3, respectively. At the same time, under the action of the spring 302, the positioning seat 301 is always pressed against the bottom of the filter sleeve 4, further ensuring the firmness after installation. The accumulation cavity 303 opened inside the bottom cover 3 is used to collect the intercepted pollutants generated during the filtration process. The drain plug 304 is threadedly connected to the bottom of the bottom cover 3. At the location corresponding to the accumulation chamber 303, it is convenient for users to regularly clean the trapped contaminants inside the accumulation chamber 303, ensuring continuous and efficient filtration inside the housing 1. A first rubber sealing ring 305 is fitted on the outer side of the positioning seat 301 to ensure the sealing between the positioning seat 301 and the bottom cover 3, preventing water from seeping out from the gaps. A rubber sealing plug 307 is fixedly connected to the connection between the top of the drain plug 304 and the accumulation chamber 303, further enhancing the sealing performance of the drain hole 306 and ensuring that there is no water leakage when the drain plug 304 is tightly closed. The bottom cover 3... The bottom is fixedly connected to the housing 1 by multiple sets of fixing screws 308, ensuring a stable connection between the bottom cover 3 and the housing 1 and preventing loosening during use. A second rubber sealing ring 309 is fitted at the connection between the bottom cover 3 and the housing 1, providing additional sealing protection and effectively preventing water leakage from the connection between the bottom cover 3 and the housing 1, ensuring the sealing performance of the housing 1. After the top cover 2 and the bottom cover 3 are removed, the interior can be thoroughly cleaned and maintained, thereby improving the convenience of cleaning and maintaining the water filter element and ensuring the continuous and efficient filtration of the water filter element.

[0022] Furthermore, the slow-flow sleeve 5 has a slow-flow channel 501 inside, and multiple sets of water outlet holes 502 are opened on the inner side wall of the slow-flow sleeve 5. A water guide groove 503 is opened on the top of the slow-flow sleeve 5. The slow-flow channel 501 has a spiral structure design, and the multiple sets of water outlet holes 502 are all funnel-shaped. The diameter of the multiple sets of water outlet holes 502 decreases from the inside to the outside. The water guide groove 503 opened on the top of the slow-flow sleeve 5 can guide the water flow smoothly into the slow-flow channel 501. The slow-flow channel 501 inside the slow-flow sleeve 5 has a spiral structure design, which can slow down the water flow speed and allow the water to stay in the filter element for a longer time, thereby improving the filtration effect. When the multiple sets of funnel-shaped water outlet holes 502 are discharged, they can not only prevent impurities from clogging the water outlet holes, but also increase the flow velocity when the water is discharged to impact the outside of the filter sleeve 4, cleaning the trapped pollutants attached to the outside, thereby improving the filtration efficiency and self-cleaning effect. This not only enhances the filtration performance, but also extends the service life and reduces maintenance costs.

[0023] Then, a mounting bracket 201 is fixedly installed on the top of the top cover 2. The top cover 2 is fixedly connected to the mounting bracket 201 by multiple sets of mounting screws 202. The mounting bracket 201 is provided on the top cover 2 and is fixedly connected to the mounting bracket 201 by mounting screws 202, which facilitates the overall installation and disassembly of the water purification filter element.

[0024] Secondly, the top cover 2 has a water inlet 203 and a drain 204 at its left and right ends, respectively. A third rubber sealing ring 205 is embedded at the connection between the top of the housing 1 and the top cover 2, and a fourth rubber sealing ring 206 is embedded at the connection between the inside of the housing 1 and the top cover 2. The water inlet 203 and drain 204 at the left and right ends of the top cover 2 allow water to flow in and out. The water inlet 203 is used to introduce water to be purified, and the drain 204 discharges the purified water after being treated by the filter element. The third rubber sealing ring 205 and the fourth rubber sealing ring 206 ensure the sealing between the top cover 2 and the housing 1.

[0025] Finally, the upper and lower ends of the filter sleeve 4 are fitted with fifth rubber sealing rings 401. The filter sleeve 4 has an outer protective layer 402, an activated carbon layer 403, and an inner protective layer 404 arranged sequentially from the outside to the inside. The filter sleeve 4 has an outlet head 405 fixedly connected to the inside of the housing 1 and located at the top of the filter sleeve 4. The top of the outlet head 405 is fixedly connected with a track etching membrane 406. The filter sleeve 4 has a fifth rubber sealing ring 401 fitted at both the upper and lower ends to ensure the sealing between it and the housing 1. The filter sleeve has an outer protective layer 402, an activated carbon layer 403, and an inner protective layer 404 arranged sequentially from the outside to the inside. It can effectively remove impurities, odors, and harmful substances from the water. At the same time, it can fully wrap the activated carbon layer 403 to effectively prevent the activated carbon layer 403 from being lost. The track etching membrane 406 fixedly connected to the top of the outlet head 405 is a key part of the filter element. The track etching membrane 406 has a small pore size, which can further filter out small particles and bacteria in the water, thereby improving water quality.

[0026] In this embodiment, the specific implementation scenario is as follows: the inlet hole 203 is used to introduce water to be purified, and the outlet hole 204 discharges the purified water after being treated by the filter element. After the water enters the housing 1, it is guided by the water guide groove 503 on the top of the slow flow sleeve 5 to smoothly enter the slow flow channel 501. The slow flow channel 501 inside the slow flow sleeve 5 has a spiral structure design, which can slow down the water flow speed and allow the water to stay in the filter element for a longer time, thereby improving the filtration effect. The multiple sets of funnel-shaped outlet holes 502 can not only prevent impurities from clogging the outlet holes when the water is discharged, but also increase the flow velocity to impact the outside of the filter sleeve 4, cleaning the trapped pollutants attached to the outside, thus achieving the effect of improving filtration efficiency and self-cleaning. The accumulation cavity 303 inside the bottom cover 3 is used to collect the trapped pollutants generated during the filtration process. The drain plug 304 is threadedly connected to the bottom of the bottom cover 3 at the position corresponding to the accumulation cavity 303, which makes it convenient for the user to clean the trapped pollutants in the accumulation cavity 303 regularly, ensuring the continuous high efficiency inside the housing 1. The filter element has a first rubber sealing ring 305 fitted on the outer side of the positioning seat 301 to ensure the sealing between the positioning seat 301 and the bottom cover 3, preventing water from seeping out from the gaps. A rubber sealing plug 307 is fixedly connected to the connection between the top of the drain plug 304 and the accumulation cavity 303, further enhancing the sealing performance of the drain hole 306 and ensuring that there is no water leakage when the drain plug 304 is tightly closed. The bottom of the bottom cover 3 is fixedly connected to the housing 1 by multiple sets of fixing screws 308, ensuring a stable connection between the bottom cover 3 and the housing 1 and preventing loosening during use. A second rubber sealing ring 309 is fitted at the connection between the bottom cover 3 and the housing 1, providing additional sealing protection and effectively preventing water from leaking from the connection between the bottom cover 3 and the housing 1, ensuring the sealing performance inside the housing 1. After the top cover 2 and the bottom cover 3 are disassembled, the interior can be thoroughly cleaned and maintained. The entire operation process is simple and convenient. This utility model achieves high-efficiency filtration, self-cleaning and convenient maintenance of the water purification filter element through design, significantly improving the water purification effect and service life.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A water filter cartridge with a track-etched membrane, comprising a housing (1), characterized in that: The top of the housing (1) is threadedly connected to a top cover (2), the bottom of the housing (1) is fixedly installed with a bottom cover (3), a filter sleeve (4) is movably installed at the center inside the housing (1), and a flow-retarding sleeve (5) is movably installed inside the housing (1) and outside the filter sleeve (4). A positioning seat (301) is slidably connected to the top of the bottom cover (3) and the bottom end of the filter sleeve (4). A spring (302) is fixedly connected between the positioning seat (301) and the bottom cover (3). An accumulation cavity (303) is opened inside the bottom cover (3). A drain plug (304) is threadedly connected to the bottom of the bottom cover (3) at the position corresponding to the accumulation cavity (303). The slow-flow sleeve (5) has a slow-flow channel (501) inside, and multiple sets of water outlet holes (502) are opened on the inner side wall of the slow-flow sleeve (5).

2. A water filter cartridge with a track-etched membrane according to claim 1, characterized in that: The outer side of the positioning seat (301) is fitted with a first rubber sealing ring (305), the bottom end of the accumulation cavity (303) is provided with a drain hole (306), and the top of the drain plug (304) is fixedly connected with a rubber sealing plug (307) at the connection between it and the accumulation cavity (303).

3. A water filter cartridge with a track-etched membrane according to claim 1, characterized in that: The bottom of the bottom cover (3) is fixedly connected to the housing (1) by multiple sets of fixing screws (308), and a second rubber sealing ring (309) is fitted at the connection between the bottom cover (3) and the housing (1).

4. A water filter cartridge with a track-etched membrane according to claim 1, characterized in that: The top of the slow-flow sleeve (5) is provided with a water guide groove (503), and the slow-flow channel (501) is designed with a spiral structure.

5. A water filter cartridge with a track-etched membrane according to claim 1, characterized in that: The multiple sets of water outlet holes (502) are all funnel-shaped, and the diameter of the multiple sets of water outlet holes (502) decreases from the inside to the outside.

6. A water filter cartridge with a track-etched membrane according to claim 1, characterized in that: The top of the top cover (2) is fixedly mounted with a mounting bracket (201), and the top cover (2) is fixedly connected to the mounting bracket (201) by multiple sets of mounting screws (202).

7. A water filter cartridge with a track-etched membrane according to claim 1, characterized in that: The top cover (2) has a water inlet hole (203) and a drain hole (204) at its left and right ends respectively. A third rubber sealing ring (205) is embedded at the connection between the top of the housing (1) and the top cover (2). A fourth rubber sealing ring (206) is embedded in the connection between the inside of the housing (1) and the top cover (2).

8. A water filter cartridge with a track-etched membrane according to claim 1, characterized in that: The filter sleeve (4) is fitted with a fifth rubber sealing ring (401) at both the upper and lower ends. The filter sleeve (4) is provided with an outer protective layer (402), an activated carbon layer (403) and an inner protective layer (404) from the outside to the inside.

9. A water filter cartridge with a track-etched membrane according to claim 1, characterized in that: An outlet head (405) is fixedly connected inside the housing (1) and at the top of the filter sleeve (4), and a track etching membrane (406) is fixedly connected to the top of the outlet head (405).

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