Adjustable filter core for water purification

Abstract

This invention discloses an adjustable filter cartridge for water purification, relating to the field of water treatment technology. It includes a filter cartridge holder and a filter cartridge. The filter cartridge holder has a first water channel, a second water channel, and a third water channel. The first water channel is equipped with a valve. The filter cartridge includes a filter cartridge housing, a locking sleeve, and an end cap. An inlet pipe and an outlet pipe are located at the end of the filter cartridge housing near the locking sleeve. The locking sleeve can be fixed to the filter cartridge holder, allowing the inlet pipe and outlet pipe to communicate with the second and third water channels, respectively. This invention allows multiple filter cartridge holders to be connected in series by setting up filter cartridge holders and filter cartridges. The filter cartridges can be removed and installed from the filter cartridge holders. When installing a filter cartridge, the second and third water channels on the filter cartridge holder are connected to the inlet and outlet pipes on the filter cartridge housing, respectively. At this time, water from the first water channel flows into the filter cartridge for filtration and then returns to the first water channel. When removing a filter cartridge, the second and third water channels are sealed by a water-blocking core, and water flows directly out from the first water channel without affecting the filtration work of subsequent filter cartridges.

Description

Technical Field

[0001] This invention relates to the field of water treatment technology, and in particular to an adjustable filter cartridge for water purification. Background Technology

[0002] Currently, in addition to purified water, the market also offers mineral water and other waters with added mineral content. As people's personalized demands for water quality, nutritional value, and taste gradually increase, water purification and control not only need to filter impurities in the water, but also need to regulate the substances in the water to change its taste and nutritional value.

[0003] Chinese Patent CN108328717B discloses a water quality control filter element, comprising a first cover, a first connecting section, a second cover, a second connecting section, and a water quality control unit. The water quality control unit has an internal chamber for accommodating a conditioning material. The water quality control unit has a first through hole, a second through hole, and a connecting pipe. The first and second through holes are respectively connected to the chamber, and the connecting pipe passes through the chamber but is not connected to it. The water quality control unit is rotatably coupled between the first and second covers to adjust the communication state between the chamber of the water quality control unit and the first and second connecting sections. This technical solution allows control over whether filtered water passes through the unit by rotating it, thereby facilitating water quality control.

[0004] However, this solution still has the following problems: when replacing one of the water quality control filter cartridges, the water circuit will be disconnected, and the other water quality control filter cartridges will not work properly, making it impossible to replace the filter cartridges while maintaining normal filtration. Summary of the Invention

[0005] This invention provides an adjustable filter element for water purification, which at least solves some of the problems existing in the prior art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] An adjustable filter cartridge for water purification, comprising:

[0008] The filter element holder has a first water channel, a second water channel, and a third water channel inside. The first water channel is equipped with a valve, and the first water channel on both sides of the valve is connected to the second and third water channels, respectively.

[0009] The filter element includes a filter element housing, one end of which is fitted with a locking sleeve, and the other end is provided with an end cap; an inlet pipe and an outlet pipe are provided at the end of the filter element housing near the locking sleeve, and the inlet pipe and outlet pipe are connected to the inner cavity of the filter element housing, and a filter body is provided in the inner cavity of the filter element housing;

[0010] The locking sleeve can be fixed on the filter element seat and connect the inlet pipe and outlet pipe to the second water channel and the third water channel respectively;

[0011] Both the second and third waterways are equipped with water-blocking cores that can block the water flow. Both the inlet and outlet pipes are equipped with pins that can cooperate with the water-blocking cores to restore the water flow.

[0012] Preferably, both the second and third water channels are provided with an adjusting cylinder at one end near the filter element housing. A partition is fixed inside the adjusting cylinder, which divides the inner cavity of the adjusting cylinder into a first cavity and a second cavity. The first cavity is located on the side of the partition away from the filter element housing. The partition has a water passage hole connecting the first cavity and the second cavity. A water blocking core is provided in the first cavity, and a first spring is provided in the first cavity. The water blocking core can block the water passage hole under the action of the first spring.

[0013] Preferably, the portion of the water-blocking core that extends into the second cavity is fixed with a buckle, and a locking element and a second spring are provided in the second cavity. The second spring can push the locking element and cause the locking element to fasten the buckle, thereby restricting the movement of the water-blocking core.

[0014] Preferably, the locking member includes a buckle seat that cooperates with the buckle, the locking member is provided with a pressing slope, and a push block that cooperates with the pressing slope is provided in the second cavity. The push block can push the locking member under the action of the second spring, so that the buckle seat and the buckle are engaged.

[0015] Preferably, the end of the ejector pin is provided with a push-off part, and the locking member is provided with a push-off inclined surface. When the push-off part cooperates with the push-off inclined surface, the push-off part can push the locking member to separate the buckle seat from the buckle.

[0016] Preferably, the end cap has a threaded hole, and an adjusting rod that passes through the end cap is threaded into the threaded hole. One end of the adjusting rod located inside the filter cartridge housing is fixedly connected to the pin in the water inlet pipe.

[0017] The threaded hole has a groove at one end inside the filter housing, and the part of the adjusting rod located inside the groove is equipped with a sliding sealing ring that mates with the groove.

[0018] Preferably, the end cap has a drain hole that communicates with the inner cavity of the filter element housing, and the drain hole is provided with a drain cover.

[0019] Preferably, a flange is provided at one end of the filter element housing near the filter element seat, and the locking sleeve is threadedly engaged with the filter element seat and can push the flange to move the filter element housing toward the filter element seat.

[0020] Preferably, one end of the water inlet pipe inside the filter cartridge housing extends to the portion of the filter cartridge housing near the end cap.

[0021] Preferably, the inlet of the first water channel is provided with a connecting sleeve, and the outlet of the first water channel is provided with a thread that mates with the connecting sleeve.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] By setting up filter cartridge holders and filter cartridges, multiple filter cartridge holders can be connected in series. Filter cartridges can be removed and installed from the filter cartridge holders. When installing a filter cartridge, the second and third water channels on the filter cartridge holder are connected to the inlet and outlet water pipes on the filter cartridge housing, respectively. The ejector pin opens the water-blocking core, and the second and third water channels are connected to the inlet and outlet water pipes, respectively. At this time, the water in the first water channel will flow into the filter cartridge for filtration and then return to the first water channel. When removing a filter cartridge, the second and third water channels are closed by the water-blocking core, and the water can flow directly out from the first water channel without affecting the filtration work of the next stage filter cartridge. Attached Figure Description

[0024] Figure 1 This is a schematic diagram showing the connection of multiple adjustable filter elements according to the present invention;

[0025] Figure 2 This is a schematic diagram of a single adjustable filter element structure of the present invention;

[0026] Figure 3 This is a perspective view of the filter element holder of the present invention;

[0027] Figure 4 This is a schematic diagram of the filter element housing of the present invention;

[0028] Figure 5 This is a schematic diagram of the filter element holder of the present invention;

[0029] Figure 6 for Figure 5 A magnified view of a section at point A in the middle;

[0030] Figure 7 This is a schematic diagram of the internal structure of the filter cartridge housing;

[0031] Figure 8 for Figure 7 A magnified view of a section at point B in the middle;

[0032] Figure 9 The figure shows a schematic diagram of the fit between the ejector pin and the water-blocking core of the present invention.

[0033] In the diagram: 1. Filter cartridge holder; 11. Inlet; 12. Outlet; 13. Connecting sleeve; 14. Valve handle; 15. First water channel; 151. Second water channel; 152. Third water channel; 16. Ball valve; 17. Adjusting cylinder; 171. First cavity; 172. Second cavity; 173. Divider; 174. Sealing gasket; 175. Water-blocking core; 1751. Buckle; 176. First spring; 177. Locking element; 1771. Buckle seat; 1 772. Push-off inclined plane; 1773. Pressing inclined plane; 178. Push block; 179. Second spring; 2. Filter element housing; 21. Locking sleeve; 211. Flange; 22. End cap; 223. Groove; 23. Inlet pipe; 24. Outlet pipe; 25. Pin; 251. Connecting part; 252. Push-off part; 26. Adjusting rod; 261. Sliding sealing ring; 27. Drain hole; 28. Filter body; 221. Drain cover; 222. Adjusting handle. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Example 1

[0036] like Figures 1 to 5 As shown, Embodiment 1 of the present invention provides an adjustable filter element for water purification, comprising a filter element holder 1 and a filter element, wherein the filter element is detachably mounted on the filter element holder 1. Specifically, as shown... Figure 5 As shown, the filter element holder 1 has a first water channel 15, a second water channel 151, and a third water channel 152. Both the second water channel 151 and the third water channel 152 are connected to the first water channel 15. A ball valve 16 is installed on the first water channel 15 between the second water channel 151 and the third water channel 152. A valve handle 14 is installed on the filter element holder 1 to control the rotation of the ball valve 16. Rotating the valve handle 14 controls the connection and disconnection of the first water channel 15.

[0037] like Figure 2 and Figure 7 As shown, the filter element of Embodiment 1 of the present invention includes a filter element housing 2, a locking sleeve 21, and an end cap 22. The locking sleeve 21 is located at one end of the filter element housing 2 near the filter element seat 1, and the end cap 22 is located at the end of the filter element housing 2 away from the locking sleeve 21. The end cap 22 is threadedly engaged with the filter element housing 2 and sealed by a sealing gasket 174.

[0038] An inlet pipe 23 and an outlet pipe 24 are fixed to one end of the filter cartridge housing 2 near the locking sleeve 21. A filter element 28 can be placed inside the inner cavity of the filter cartridge housing 2. The inlet pipe 23 and the outlet pipe 24 are connected to the inner cavity of the filter cartridge housing 2. When water enters the inner cavity of the filter cartridge housing 2 through the inlet pipe 23, the water passes through the filter element 28 and is discharged from the outlet pipe 24. The filter element 28 can be a filter medium for filtering impurities in the water, or a filter medium for enriching the minerals in the water.

[0039] In a preferred embodiment, a flange 211 is fixed at one end of the filter cartridge housing 2 near the filter cartridge seat 1, and the locking sleeve 21 is threadedly engaged with the filter cartridge seat 1. When the locking sleeve 21 is tightened onto the filter cartridge seat 1, the locking sleeve 21 pushes the flange 211, causing the filter cartridge housing 2 to move towards the filter cartridge seat 1, thereby connecting the inlet pipe 23 and the outlet pipe 24 to the second water channel 151 and the third water channel 152, respectively. A sealing gasket 174 is used to seal the connections between the inlet pipe 23 and the outlet pipe 24 and the second water channel 151 and the third water channel 152. The locking sleeve 21 is rotatably fitted onto the filter cartridge housing 2; therefore, when the locking sleeve 21 is rotated, the filter cartridge housing 2 will not rotate, facilitating the connection of the inlet pipe 23 and the outlet pipe 24 to the second water channel 151 and the third water channel 152, respectively.

[0040] like Figure 5 and Figure 6 As shown, both the second water channel 151 and the third water channel 152 are equipped with a water-blocking core 175 that can block the water flow. The water-blocking core 175 can be a one-way valve core that can restrict the one-way flow of water. The inlet pipe 23 and the outlet pipe 24 are both fixed with a pin 25. When the filter element housing 2 moves towards the filter element seat 1, the inlet pipe 23 and the outlet pipe 24 are connected to the second water channel 151 and the third water channel 152 respectively. The pin 25 can cooperate with the steel ball in the one-way valve core to push open the steel ball, so that the second water channel 151 and the inlet pipe 23 are connected, and the third water channel 152 and the outlet pipe 24 are connected.

[0041] In use, the connection between the second water channel 151 and the inlet pipe 23, and between the third water channel 152 and the outlet pipe 24 are controlled by rotating the locking sleeve 21. The connection of the first water channel 15 is controlled by controlling the valve handle 14. When filtration is required, the ball valve 16 closes the first water channel 15, and the locking sleeve 21 is rotated to connect the inlet pipe 23 and the outlet pipe 24 with the second water channel 151 and the third water channel 152, respectively. The ejector pin 25 pushes open the steel ball, connecting the second water channel 151 with the inlet pipe 23 and the third water channel 152 with the outlet pipe 24. Water in the first pipe can enter the filter housing 2 from the inlet pipe 23, pass through the filter body 28, and then enter the first pipe from the outlet pipe 24, thus achieving water filtration. When the filter element needs to be removed or deactivated, the ball valve 16 opens the first water channel 15, and the locking sleeve 21 is rotated to disengage the ejector pin 25 from the water-blocking core 175, thus re-closing the second water channel 151 and the third water channel 152. In this way, when removing the filter element, water can flow directly downwards from the first water channel 15, thereby maintaining water flow.

[0042] like Figure 1 As shown, when multiple filter cartridge holders 1 have their first water channels 15 connected in series, multiple filter cartridges can be used simultaneously to filter water, and each filter cartridge can be disassembled individually without affecting the normal operation of the next filter cartridge. To facilitate series connection, a rotatable connecting sleeve 13 is fitted onto the inlet 11 of the first water channel 15, with a sealing gasket 174 placed inside the connecting sleeve 13. The outlet 12 of the first water channel 15 has threads that mate with the connecting sleeve 13. The inlet 11 of the next filter cartridge holder 1 can be locked to the outlet 12 of the previous filter cartridge holder 1 via the connecting sleeve 13, thus achieving series connection.

[0043] Example 2

[0044] Based on Example 1, the present invention further proposes Example 2. For example... Figures 5 to 9 As shown, in the water purification adjustable filter element proposed in Embodiment 2 of the present invention, an adjusting cylinder 17 is connected to each of the second water channel 151 and the third water channel 152. The adjusting cylinder 17 can be threadedly installed on the second water channel 151 or the third water channel 152.

[0045] like Figure 6 As shown, a partition 173 is fixed inside the regulating cylinder 17, dividing the inner cavity of the regulating cylinder 17 into a first cavity 171 and a second cavity 172. The first cavity 171 is located on the side of the partition 173 away from the filter housing 2. A water passage hole is provided on the partition 173. The second water channel 151 can be blocked by sealing the water passage hole. The water-blocking core 175 of the present invention is arranged in the first cavity 171. At the same time, a first spring 176 is also installed in the first cavity 171. The first spring 176 can push the water-blocking core 175 so that the water-blocking core 175 can block the water passage hole.

[0046] As one possible implementation of the present invention, such as Figure 9 As shown, a buckle 1751 is fixed on the side of the water-blocking core 175 near the second cavity 172. When the water-blocking core 175 abuts against the water passage hole, the buckle 1751 can extend into the second cavity 172. At the same time, two symmetrical locking members 177 and a second spring 179 are provided in the second cavity 172. The locking member 177 includes a buckle seat 1771 that cooperates with the buckle 1751. The locking member 177 has a pressing slope 1773 and a pushing slope 1772. The second cavity 172 is provided with a push block 178 that cooperates with the pressing slope 1773. The push block 178 can push the two locking members 177 to move under the action of the second spring 179, so that the buckle seat 1771 on the locking member 177 engages with the buckle 1751, restricting the movement of the water-blocking core 175.

[0047] In one possible embodiment of the present invention, a push-away portion 252 with an inclined surface is provided at the end of the ejector pin 25. The push-away portion 252 can cooperate with the push-away inclined surface 1772 to push the two locking members 177 apart, thereby disengaging the buckle seat 1771 from the buckle 1751. When the ejector pin 25 further pushes the buckle 1751, the water-blocking core 175 can be pushed away from the water passage, restoring the water passage.

[0048] In one possible embodiment of the present invention, in order to control the states of the second water channel 151 and the third water channel 152 separately, a threaded hole is provided on the end cap 22, and an adjusting rod 26 is threadedly installed through the threaded hole, penetrating the end cap 22. An adjusting handle 222 is fixed to one end of the adjusting rod 26 extending out of the end cap 22. The adjusting rod 26 can be moved by rotating it. One end of the adjusting rod 26 located inside the filter cartridge housing 2 is fixedly connected to the ejector pin 25 in the inlet pipe 23, thus allowing the adjusting rod 26 to control the position of the ejector pin 25. The ejector pin 25 in the outlet pipe 24 is fixed in the outlet pipe 24 by a connecting part 251. Therefore, the two ejector pins 25 can be controlled as a whole or individually by using the adjusting rod 26 and the locking sleeve 21.

[0049] To prevent water leakage from the threaded hole of the end cap 22, a groove 223 is provided at one end of the threaded hole located inside the filter housing 2, and a sliding sealing ring 261 that mates with the groove 223 is fixedly sleeved on the part of the adjusting rod 26 located inside the groove 223. When the adjusting rod 26 moves, the sliding sealing ring 261 can seal one end of the threaded hole to prevent water leakage.

[0050] As one possible implementation of the present invention, such as Figure 7As shown, the portion of the inlet pipe 23 inside the filter cartridge housing 2 extends all the way to near the end cap 22, while the outlet pipe 24 is relatively short. This allows water to flow from one end of the filter body 28 to the other, making full use of the filter body 28. A drain hole 27 is also provided on the end cap 22, and a drain cover 221 is provided to close the drain hole 27. For some filter media that can be rinsed and reused, this invention can also achieve the rinsing of the filter media.

[0051] The specific rinsing process is as follows: the pin 25 of the inlet pipe 23 is disengaged from the water blocking core 175, so that the water blocking core 175 blocks the water passage of the inlet pipe 23, and the pin 25 of the outlet pipe 24 pushes open the water blocking core 175. At this time, water can enter from the outlet pipe 24, pass through the filter body 28, and be discharged from the drain hole 27, thereby achieving reverse rinsing of the filter body 28.

[0052] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit and essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adjustable filter element for water purification, characterized in that, include: A filter element holder (1) is provided with a first water channel (15), a second water channel (151), and a third water channel (152). The first water channel (15) is equipped with a valve, and the first water channel (15) on both sides of the valve is connected to the second water channel (151) and the third water channel (152) respectively. The filter element includes a filter element housing (2), one end of which is fitted with a locking sleeve (21), and the other end is provided with an end cap (22); the filter element housing (2) is provided with an inlet pipe (23) and an outlet pipe (24) at the end near the locking sleeve (21), the inlet pipe (23) and the outlet pipe (24) are connected to the inner cavity of the filter element housing (2), and a filter body (28) is provided in the inner cavity of the filter element housing (2). The locking sleeve (21) can be fixed on the filter element seat (1) and the inlet pipe (23) and outlet pipe (24) are connected to the second water channel (151) and the third water channel (152) respectively; The second waterway (151) and the third waterway (152) are both equipped with water-blocking cores (175) that can block the water path. The inlet pipe (23) and the outlet pipe (24) are both equipped with pins (25). The pins (25) can cooperate with the water-blocking cores (175) to restore the water path. Both the second water channel (151) and the third water channel (152) have an adjusting cylinder (17) at one end near the filter element housing (2). A partition (173) is fixed inside the adjusting cylinder (17), which divides the inner cavity of the adjusting cylinder (17) into a first cavity (171) and a second cavity (172). The first cavity (171) is located on the side of the partition (173) away from the filter element housing (2). The partition (173) has a water passage hole that connects the first cavity (171) and the second cavity (172). The water-blocking core (175) is disposed in the first cavity (171), and a first spring (176) is disposed in the first cavity (171). The water-blocking core (175) can block the water passage under the action of the first spring (176). The portion of the water-blocking core (175) that extends into the second cavity (172) is fixed with a buckle (1751). The second cavity (172) is provided with a locking member (177) and a second spring (179). The second spring (179) can push the locking member (177) and cause the locking member (177) to fasten the buckle (1751), thereby restricting the movement of the water-blocking core (175). The locking member (177) includes a buckle seat (1771) that cooperates with the buckle (1751). The locking member (177) is provided with a pressing slope (1773). The second cavity (172) is provided with a push block (178) that cooperates with the pressing slope (1773). The push block (178) can push the locking member (177) under the action of the second spring (179), so that the buckle seat (1771) and the buckle (1751) are engaged. The end of the pin (25) is provided with a push-off part (252), and the locking member (177) is provided with a push-off inclined surface (1772). When the push-off part (252) cooperates with the push-off inclined surface (1772), the push-off part (252) can push the locking member (177) to separate the buckle seat (1771) from the buckle (1751); The end cap (22) has a threaded hole, and an adjusting rod (26) that passes through the end cap (22) is threadedly installed in the threaded hole. One end of the adjusting rod (26) located inside the filter housing (2) is fixedly connected to the pin (25) in the water inlet pipe (23). The threaded hole is provided with a groove (223) at one end inside the filter housing (2), and the part of the adjusting rod (26) located inside the groove (223) is provided with a sliding sealing ring (261) that cooperates with the groove (223). The end cap (22) has a drain hole (27) that communicates with the inner cavity of the filter housing (2), and the drain hole (27) is provided with a drain cover (221).

2. The adjustable filter element for water purification as described in claim 1, characterized in that, The filter housing (2) has a flange (211) at one end near the filter seat (1). The locking sleeve (21) is threadedly engaged with the filter seat (1) and can push the flange (211) to move the filter housing (2) toward the filter seat (1).

3. The adjustable filter element for water purification as described in claim 1, characterized in that, The inlet pipe (23) extends from one end inside the filter housing (2) to the portion of the filter housing (2) near the end cap (22).

4. The adjustable filter element for water purification as described in claim 1, characterized in that, The inlet (11) of the first waterway (15) is provided with a connecting sleeve (13), and the outlet (12) of the first waterway (15) is provided with a thread that mates with the connecting sleeve (13).

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