CN205109169U - Sealing member and filter core seat - Google Patents

Abstract

The utility model discloses a sealing part and a filter core seat, in particular to a sealing part and a filter core seat applied in a filter core device. The sealing member includes a plurality of sealing parts (522) and a connecting part (521) connecting two adjacent sealing parts (522). In this way, through the connection of the connecting parts, the multiple sealing parts can be restrained from each other, especially when related components such as the water retaining member rotate, it can effectively ensure that the multiple sealing parts do not move, and the installation structure is stable.

Description

Seals and cartridge holders

technical field

This disclosure relates to the field of sealing. In particular, it relates to a sealing element applied to a filter element device and a filter element seat using the sealing element.

Background technique

In the related art, such as the filter element device installed in the water purifier. For convenience, the filter element device is divided into two parts: the filter element seat and the filter element. Generally, the filter element will be replaced frequently, but the filter element seat needs to be used repeatedly.

The filter element seat and the filter element are detachably connected, and the filter element is provided with a water inlet and a waterway for water inlet and outlet, and a filter material arranged in the waterway, and the filter element seat is provided with a water flow channel communicated with the water outlet of the filter element. Wherein, when the filter element seat is connected with the filter element, the water to be filtered flows into the filter element through the water flow channel of the filter element seat, and flows into the water flow channel of the filter element seat again after being filtered by the filter material and is discharged to realize the filtration of water. After the filter element unit stops working, due to the presence of residual water, when the filter element is separated from the filter element holder, the residual water flow will leak out.

Utility model content

In order to overcome the problems existing in the related art, the present disclosure provides a seal and a filter seat.

According to an aspect of an embodiment of the present disclosure, there is provided a seal, which includes a plurality of seal portions and a connecting portion connecting two adjacent seal portions.

According to another aspect of the embodiments of the present disclosure, there is provided a filter cartridge seat, the filter cartridge seat includes a seat body, a water blocking member is rotatably accommodated in the seat body, a plurality of first water flow channels are formed in the seat body, The water blocking member is provided with a plurality of second water flow channels corresponding to the plurality of first water flow channels and the plurality of nozzles, and a second water flow channel is arranged between the first water flow channel and the second water flow channel. A second seal, the second seal is the seal provided by the embodiment of the present disclosure.

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects: in this way, through the connection of the connecting parts, multiple sealing parts can be restrained from each other, especially when the related parts such as the rotation of the water retaining part are moved, it can effectively ensure that multiple The position of the sealing part does not move, and the installation structure is stable.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description serve to explain the principles of the disclosure.

Fig. 1 is a schematic structural view of a filter element device according to an exemplary embodiment.

Fig. 2 is a schematic cross-sectional structure diagram of a filter element device according to another exemplary embodiment.

Fig. 3 is an enlarged structural schematic diagram of part A of the filter element in Fig. 2 .

Fig. 4 is an exploded view of a filter element holder according to an exemplary embodiment.

Fig. 5 is another exploded view of the filter element holder in Fig. 4 .

Fig. 6 is a schematic top view of a water retaining element according to an exemplary embodiment.

Fig. 7 is a schematic front structural view of a water blocking element according to an exemplary embodiment.

Fig. 8 is a schematic side view of a water retaining element according to an exemplary embodiment.

Fig. 9 is a schematic bottom view of a water retaining member according to an exemplary embodiment.

Fig. 10 is a schematic top view of a seat body according to an exemplary embodiment.

Fig. 11 is a schematic structural diagram of a second sealing member according to yet another exemplary embodiment.

detailed description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

As shown in FIG. 1 to FIG. 11 , the embodiments described herein at least provide a water retaining member 2 , a filter element seat, a filter element 3 and a filter element device.

As shown in FIG. 1 and FIG. 2 , a filter element device provided by an exemplary embodiment and another exemplary embodiment of the present disclosure includes a base body 1 and a filter element 3 , wherein the base body 1 forms a plurality of first water flow channels 11 .

As shown in Figure 10, a plurality of first water flow channels 11 may include a water inlet channel 111 for supplying water to be filtered to the filter element 3, a water outlet channel 112 for discharging purified water filtered by the filter element 3, and a water outlet channel 112 for discharging the filter element 3. 3 Concentrated water channel for the concentrated water generated during the filtration process. In other possible embodiments, according to different filtering mechanisms, only the water inlet channel 111 and the water outlet channel 112 may be formed on the base body 1 to achieve the purpose of water purification.

As shown in Figures 1 and 2, in this embodiment, the filter element 3 can adopt the principle of RO reverse osmosis filtration, and the water ports provided on it can include a water inlet 31 corresponding to the water inlet channel 111, and an outlet corresponding to the water outlet channel 112. The water port 32 and the concentrated water port 33 corresponding to the concentrated water channel 113 . The water to be purified enters the filter element 3 through the water inlet 31, and produces pure water and RO concentrated water after being filtered by the filter material. The pure water is discharged through the water outlet 32 for drinking purposes, and the RO concentrated water can pass through the concentrated water port 33 Drain for other uses such as washing.

In order to facilitate the connection of the filter element device with other parts of the water purification equipment, in one exemplary embodiment and another exemplary embodiment of the present disclosure, the external interface axes of the multiple first water flow channels 11 are parallel to each other, as shown in Figure 4 and As shown in FIG. 2 , that is, the axes of the outer interfaces of the water inlet channel 111 , the water outlet channel 112 and the concentrated water channel 113 are parallel to each other. Therefore, only one direction of installation action is needed to install the filter element unit into other components.

In an exemplary embodiment shown in FIG. 4 , the external interface axes of the multiple first water flow channels 11 extend toward the horizontal direction, while in another exemplary embodiment shown in FIG. 2 , the multiple first water flow channels 11 extend horizontally. The external interface axis of the channel 12 extends towards the vertical direction. In other possible embodiments, the multiple first water flow channels 11 may also extend in the same direction towards other directions. Wherein, the first water flow channel 11 in Fig. 4 may include a vertical section and a horizontal section, the channel opening of the vertical section is used to connect with the second water flow channel 21, and the channel opening of the horizontal section is used for externally connecting other components, suitable for Parts with horizontal jacks. However, the first water flow channel 11 in FIG. 2 extends vertically and is suitable for components with vertical insertion holes.

In addition, in an exemplary embodiment in Fig. 4, the connection direction of the water inlet channel 111, the water outlet channel 112, and the concentrated water channel 113 is arranged obliquely to the axis of the external interface. In other possible embodiments, the continuous flow of the three The direction and the axis of the external interface can also be arranged perpendicularly.

In an exemplary embodiment of the present disclosure, the filter element device further includes a water retaining member 2 located between the seat body 1 and the filter element 3. As shown in FIG. 4 and FIG. 5, the water retaining member 2 is provided with a plurality of first The water flow channel 11 and a plurality of second water flow channels 21 corresponding to the plurality of water ports, that is, the second water flow channels 21 are used to connect the first water flow channel 11 in the base body 1 with the water ports on the filter element 3, as shown in Fig. 6 to Fig. As shown in 9 , in this embodiment, the second water flow channel 21 may include a water inlet channel 211 corresponding to the water inlet channel 111 and the water inlet 31 , and corresponding to the water outlet channel 112 and the water outlet 32 .

Wherein, in the exemplary embodiment of the present disclosure, the water blocking member 2 can rotate relative to the seat body 1 so that there is a conduction position or a cut-off position between the water retaining member 2 and the seat body 1. In the conduction position, the second The water flow channel 21 communicates with the first water flow channel 11, that is, the channel opening of the second water flow channel 21 is aligned with the channel opening of the corresponding first water flow channel 11, and at the cut-off position, at least one second water flow channel 21 changes relative circumferential position To disconnect from the first water flow channel 11 , that is, the channel opening of the second water flow channel 21 and the corresponding channel opening of the first water flow channel 11 are staggered in the circumferential direction.

In this way, after the work of the filter element device stops, when the filter element 3 needs to be separated from the seat body 1, only the water retaining member 2 needs to be rotated relative to the seat body 1 to make the space between the water retaining member 2 and the seat body 1 enter the cut-off position , that is, at this moment at least one second water flow channel 21 is disconnected from the corresponding first water flow channel 11 . Leakage of residual water through the disconnected water flow channel can thus at least be avoided. Therefore, the sealing and practicability of the filter element device provided by the present disclosure are effectively improved.

In a possible embodiment, the rotation of the water blocking member 2 relative to the seat body 1 may also be that the water blocking member 2 is stationary and the seat body 1 rotates. Therefore, the “relative circumferential position” here refers not only to the change of the circumferential position of the second water flow channel 21 relative to the first water flow channel 11 , but also to the change of the circumferential position of the first water flow channel 11 relative to the second water flow channel.

Wherein, as shown in FIG. 4 to FIG. 6 , in this embodiment, since the filter element device has stopped working when the filter element is disassembled. At this time, there will still be residual pressure water in the water inlet system, that is, there will be pressure in the water inlet channel 111 in the first water flow channel 11, and at the same time, the water to be purified cannot pass through the filter material of the filter element 3 after the filter element device stops working, so The discharge pressure of the water outlet 32 for discharging clean water is relatively small, but the water that fails to pass through the filter material and the concentrated water that has been produced will have a tendency to be discharged through the concentrated water port 33 . Therefore, in this embodiment, the water retaining member 21 adopts a blocking method of changing the relative circumferential positions of the water inlet system and the concentrated water system.

That is, at the cut-off position, the water inlet channel 211 changes its relative circumferential position to disconnect from the corresponding first water flow channel 11 (water inlet channel 111 ). And the concentrated water flow channel 211 changes its relative circumferential position to disconnect from the corresponding first water flow channel 11 (concentrated water channel 113 ). In other possible embodiments, only one of the inlet water flow channel 211 or the concentrated water flow channel 213 may be cut off by changing the relative circumferential position.

As shown in FIGS. 6 to 9 , in an exemplary embodiment of the present disclosure, the water outlet channel 212 is located at the center of rotation of the water retaining member 1 , which is the water retaining center in this embodiment of the circular water retaining member 2 . The center of the circle of piece 3. In this way, at the cut-off position, the inlet water flow channel 211 and the concentrated water flow channel 213 respectively change their relative circumferential positions and are staggered with the channel openings of the corresponding first water flow channel 11 in the circumferential direction to disconnect from communication. In this way, the water pressure in the water inlet channel 111 in the water inlet system will be blocked by the water retaining member 2 and will not enter the water inlet flow channel 211. At the same time, the concentrated water in the concentrated water port 33 will also be blocked by the water retaining member 2 and will not enter the concentrated water. In the water channel 113.

In this way, the remaining water in the filter element 3, especially concentrated water, can be prevented from flowing into the seat body 1, and at the same time, the pressure water remaining in the water inlet system can also be prevented from entering the second water flow channel 21 through the first water flow channel 11, and then can also be This part of the water flow is prevented from leaking through the seat body 1 .

In addition, in this embodiment, when the filter element needs to be disassembled, there may be a small pressure in the water outlet 32. In order to prevent the residual water in the water outlet channel 212 from entering the water outlet channel 112, the water outlet channel 212 and the corresponding first water flow channel 11 (the water outlet channel 112) is provided with a first check valve 61 with an opening pressure. The first check valve 61 can be a one-way valve structure with a spring, so that the opening pressure is established by the spring.

In this way, when the filter element device works normally, the clean water filtered by the filter element can enter the water outlet flow channel 212 through the water outlet 32, and the first check valve 61 is opened under the action of the drainage pressure to ensure normal supply of clean water.

In order to facilitate the rotation of the water retaining member 2 relative to the base body 1, in this exemplary embodiment, as shown in FIG. , so that the water retaining member 2 can be rotated relative to the seat body 1 by the filter element 3 through the plug-in structure 22 . In this way, before the filter element 3 is pulled out, the water retaining member 2 can be rotated relative to the seat body 1 by first rotating the filter element 3, which is convenient to operate.

Optionally, it is also possible to design the rotating water retaining member 2 of the filter element 3 to be disassembled from the seat body 1 at the same time. The rotation operation of the water retaining member 2 and the assembly and disassembly of the filter element 3 can be completed by one action of rotating the filter element, which is more practical. In other possible embodiments, the water retaining member 2 can also be operated independently, for example, it is designed such that the peripheral edge is exposed from the seat body 1, so that the water retaining member 2 can be manually rotated by an operator.

In order to optimize the structure of the water retaining member 2 , in this exemplary embodiment, the second water flow channel 21 is formed in the insertion structure 22 . In this way, the flow of water flow can be realized simultaneously through the plug-in structure. In other possible embodiments, the second water flow channel 21 and the insertion structure 22 may also be formed separately.

As shown in FIGS. 4 to 9 , in an exemplary embodiment of the present disclosure, the insertion structure 22 includes a hollow column tube formed with a second water flow channel 21 , such as a cylindrical hollow column tube, for inserting the filter element 3 . Corresponding to the water mouth. In this way, the hollow column tube may include a first column tube 221 forming the water inlet channel 211 , a second column tube 222 forming the water outlet channel 212 and a third column tube 223 forming the concentrated water channel 213 . In other possible embodiments, the hollow column tube may also be a column tube with a non-circular section such as a square.

That is, in this embodiment, a protruding plug-in structure is formed on the water retaining member 2 to be inserted into the water port of the filter element 3 . In other possible embodiments, it is also possible to design the water retaining member 2 to form a concave channel structure, while the filter element 3 is formed with a protruding structure that can be inserted into the channel structure to complete the insertion and water flow of the two. flow.

Or in another possible embodiment, a part of the second water flow channel 21 may be formed as a hollow cylindrical tube, and another part of the second water flow channel 21 may be formed as a hole structure. Under the action of multiple hollow column tubes, the purpose of rotating the water retaining member 2 through the filter element 3 can be achieved.

In another possible embodiment, the water retaining member 21 may also be surface-connected with the filter element 3 , that is, fit through a shape with a non-circular section, such as a square shape. In this way, only one protruding structure or concave structure can be provided to complete the purpose of rotating the water retaining member 2 through the filter element 3 . For example, a square boss is formed on the water retaining member 21, and a plurality of second water flow channels 21 are opened on the square boss. Correspondingly, the filter element 3 has a square hole, and a plurality of nozzles are correspondingly arranged in the square hole. In this way, the purpose of rotating the water retaining member 2 of the filter element 3 can be achieved through the connection between the square boss and the square hole.

In an exemplary embodiment of the present disclosure, the arrangement of the plurality of hollow cylindrical tubes is ingenious. It can not only complete the rotation of the filter element 3 to the water retaining member 2, but also adapt to the water flow characteristics of the filter element device.

Wherein, as shown in FIGS. 6 to 9, in this embodiment, the second column tube 222 is located at the center of rotation of the water retaining member 2, and the first column tube 221 and the third column tube 223 are respectively located at the center of the second column tube 222. sides. That is, the water inlet channel 211 and the concentrated water channel 213 change their relative circumferential positions when the water retaining member 2 rotates relative to the seat body 1 to disconnect the water inlet channel 111 and the concentrated water channel 113 respectively, so that the water retaining member 2 The hollow tubular arrangement is more optimized. In other possible embodiments, the first column tube 221, the second column tube 222, and the third column tube 223 can all be arranged away from the center of rotation of the water retaining member 2, so that through the rotation of the water retaining member 2, the The water inlet system, the water outlet system and the concentrated water system are all cut off by changing the circumferential position.

In an exemplary embodiment of the present disclosure, the first column tube 221 , the second column tube 222 and the third column tube 223 are arranged on the same line. At this time, in order to facilitate the insertion of the hollow column tube and the water port of the filter element 3 , the plug-in The structure 22 also includes a positioning column 225 arranged differently from the first column tube 221 , the second column tube 222 and the third column tube 223 .

Correspondingly, a positioning hole (not shown) for matching with the positioning post 225 is formed on the filter element 3 . Therefore, it is more convenient to align the hollow column tube and the corresponding nozzle through the positioning column 225, and at the same time, through the positioning column 225 arranged in a different line, the force of the filter element 3 on the water retaining member 2 can be shared, and the force on the hollow column tube can be reduced. Utilize the service life that promotes water retaining member 2. Wherein the positioning column 225 can be a solid column or a hollow column, and its top end can be formed into a tapered guiding structure, so as to be inserted into the filter element 3 .

As shown in Figure 4 and Figure 8, in order to avoid the influence of the hollow column tube structure on the water flow when the nozzle of the filter element 3 is plugged and fitted, in an exemplary embodiment of the present disclosure, the top of the side wall of the hollow column tube can be formed There is a gap 224 to increase the flow of the corresponding water flow channel. Wherein, in this embodiment, a notch 224 is formed at the top of the side wall of at least one of the first column tube 221 and the second column tube 222 . The embodiment in which both of them are provided with the notch 224 can ensure the flow rate of water inflow and water outflow of the filter element device. As shown in FIG. 3 , the function of the notch 224 is to increase the flow area between the hollow column tube and the corresponding water port, so that the flow rate of the water inlet system and the water outlet system of the filter element device can be guaranteed.

In this embodiment, the corners of the notches 224 located on the sidewall of the hollow cylindrical tube are formed as arc structures, so as to avoid stress concentration at the corners and damage the hollow cylindrical tube. In addition, as shown in FIG. 8 , the profile of the notch 224 on the side wall of the hollow cylindrical tube includes a pair of axial profiles extending in the axial direction, and a circumferential profile located between the pair of axial profiles. That is, in the case of the axial length of the channel, the gap 224 in this embodiment can maintain a relatively large flow area. Wherein, the shape of the notch 224 has various deformations, and in other possible embodiments, it may also be a V-shape, a square notch, and the like.

Since the hollow cylindrical tube often needs to be inserted and removed from the nozzle of the filter element 3 , in order to ensure the strength of the hollow cylindrical tube, a first reinforcing rib 226 is arranged inside the hollow cylindrical tube. In order to increase the strength of the hollow column tube, especially the strength of the hollow column tube with the notch 224 opened.

In this embodiment, as shown in FIG. 6 and FIG. 8 , the first reinforcing rib 226 is a plate-shaped structure extending along the inner wall of the hollow cylindrical tube, and the length direction of the reinforcing plate extends along the axial direction of the hollow cylindrical tube. The width direction extends along the radial direction of the hollow cylindrical tube, thereby ensuring the structural strength of the hollow cylindrical tube. That is, as shown in FIG. 9 , the plate surface of the plate structure is located on the diameter of the circular section of the hollow cylindrical tube, so as to balance the stress on the hollow cylindrical tube. In addition, the first reinforcing rib 226 bisects the contour of the notch 224 to better strengthen the strength of the hollow column tube with the notch 224 , which can ensure the structure of the hollow column tube to be stable and not easily damaged under the condition of external force.

In other possible embodiments, the first reinforcing rib 226 may also be designed as a plurality of circumferentially spaced reinforcing ribs protruding from the inner wall of the hollow column tube or the like.

Referring now to FIG. 4 to FIG. 9, in an exemplary embodiment of the present disclosure, the water retaining member 2 has a circular peripheral wall and is rotatably accommodated in the seat body 1, that is, formed at least at the corresponding position in the seat body 1. There is a circular inner wall to realize the rotary movement of the water retaining member 2 relative to the seat body 1, and in order to ensure that the water sprinkled on the water retaining member 2 does not enter the seat body 1 through the peripheral wall, the circular peripheral wall and the inner wall of the seat body 1 A first seal 51 is provided therebetween.

In Fig. 8, the circular peripheral wall of the water retaining member 2 is formed with an annular groove for accommodating the first sealing member 51. In this embodiment, the first sealing member 51 is an elastic sealing ring, such as an O-ring . In other possible embodiments, the first sealing member 51 can also be a sealing member such as a sealing strip or a sealing groove. In addition, the first sealing member 51 can also be a dynamic sealing member to ensure that the water retaining member 2 rotates. tightness.

In order to make reasonable use of space, in an exemplary embodiment of the present disclosure, the water retaining member 2 is formed into a plate-shaped structure, such as a circular plate structure, in order to ensure the strength of the plate-shaped structure, it is suitable for multiple insertions with the filter element 3 In cooperation, as shown in Figure 4 and Figure 6, a plurality of staggered second reinforcing ribs 4 are provided on the plate surface facing the filter element 3 of the plate structure. The strength of the plate-shaped water retaining member 2 can be effectively increased by a plurality of interlaced second reinforcing ribs 4 , effectively ensuring the strength of the water retaining member 2 provided with a plurality of second water flow channels 21 in use, and a long service life.

Further, in order to strengthen the plug-in structure on the water retaining member 2 at the same time, the plug-in structure 22 has a connection point with at least one second reinforcing rib 4 . Further, in Fig. 6, a plurality of second reinforcing ribs 4 include a circular reinforcing rib 41 with the second column tube 222 as the center, and the first column tube 221, the third column tube 223 and the positioning column 225 are simultaneously connected with the circular rib 41. The circular rib 41 has a connection point, and the circular rib 41 is connected to the second column tube 222 through a plurality of radial ribs 42 . In this way, all the hollow column tubes and positioning columns 222 can be strengthened at the same time through the ingenious rib structure in this embodiment, that is, the plug-in structure 22 that needs to be plug-fitted with the filter element 3 . Therefore, the structure of the water retaining member 2 provided by the present disclosure is more stable and has a long service life.

Wherein, in this embodiment, as shown in FIG. 6 , the plurality of radial reinforcing ribs 42 formed on the plate-shaped water retaining member 2 include first radial reinforcing ribs connecting the second column tube 222 and the positioning column 225 at the same time. 421 and the second radial rib 422 connecting the first column tube 221, the second column tube 222 and the third column tube 223 at the same time, and the first radial rib 422 and the second radial rib 422 are respectively connected with the water retaining rib The peripheral wall of piece 2 is connected.

In this way, the structures of the first radial reinforcing rib 421 and the second radial reinforcing rib 422 are more stable, further improving the strength of the overall water retaining member 2 . In addition, more radial ribs can be arranged between the circular rib 41 and the second column tube 222 located at the center of the circle, and all radial ribs including the first and second radial ribs are arranged at intervals along the circumferential direction The structure of the area where the plug-in structure 22 is located is uniformly stressed and the strength is higher.

Further, the first radial rib 421 and the second radial rib 422 are perpendicular to each other, that is, the positioning column 225 is located at the vertical bisection of the line between the first column tube 221 , the second column tube 222 and the third column tube 223 On the other hand, the symmetrical structure makes the structure of the integral water retaining member 2 more stable.

As shown in Figure 6, in this embodiment, the plurality of second ribs 4 also include two first tangential ribs 43 parallel to the first radial ribs 421, and two parallel to the second radial ribs 421. Two second tangential ribs 44 of 422, the first tangential rib 43 and the second tangential rib 44 are tangent to the circular rib 41, and the two first tangential ribs 43 and the two The second tangential reinforcing rib 44 is also connected to the outer peripheral edge of the water retaining member 2 , that is, the four form a circumscribed square of the circular reinforcing rib 41 .

In addition, the first connecting ribs 45 are respectively connected between the first radial ribs 421 parallel to each other and the first tangential ribs 43 on both sides, and the second radial ribs 422 parallel to each other are connected to the second ribs 43 on both sides. Second connecting ribs 46 are respectively connected between the tangential reinforcing ribs 44 . In addition, the first connecting ribs 45 are connected in pairs, and the second connecting ribs 46 are connected in pairs, and all the first connecting ribs and the second connecting ribs are formed into a ring structure surrounding the circular reinforcing rib 41, as shown in FIG. 8 , Roughly formed into a regular octagonal ring structure. In this way, the structure of the second reinforcing rib 4 on the water retaining member 2 provided in this embodiment is symmetrical and ingenious, and the structural stability can be achieved by strengthening the plate structure of the water retaining member 2 and the plug-in structure 22 on the water retaining member 2 .

As shown in Fig. 4 and Fig. 5, in an exemplary embodiment of the present disclosure, the side of the water blocking member 2 facing the seat body 1 is formed as a smooth surface structure that is attached to the seat body 1, and the second water flow channel 21 is connected to the first water flow channel 21. A second seal 52 is disposed between the water flow channels 11 . In this way, the rotation of the water blocking member 2 relative to the seat body 1 can be realized through the smooth structure, and at the same time, the blocking of the staggered channel openings can be ensured. And the second sealing member 52 can ensure the sealing of the communicating channel opening during normal operation. In some possible embodiments, a gasket may be provided between the side of the water retaining member 2 facing the seat body 1 and the seat body 1 to seal the channel openings that may be staggered.

In this embodiment, as shown in FIG. 4 , the second sealing member 52 includes sealing rings respectively arranged between the water inlet flow channel 211 and the seat body 1, and between the concentrated water flow channel 213 and the seat body 1, such as a single O ring. In this way, the water inlet system and the concentrated water system with a large leakage tendency are sealed by the second sealing member, and the water outlet channel 212 with a small leakage tendency is closed by the above-mentioned first check valve 61 after the work stops.

As shown in FIG. 11 , in yet another exemplary embodiment of the present disclosure, in addition to a separate O-ring, the second sealing member 52 respectively embedded in the water inlet channel 11 and the concentrated water channel 113 can also be an integral structure. The structure includes two sealing parts 522 connected by a connecting part 521 . In other possible embodiments, the number of sealing parts 522 may be more, so that the connecting part 521 is used to connect two adjacent sealing parts 522 . For the convenience of manufacture, in some embodiments, the sealing part 522 and the connecting part 521 can be integrally formed into an integral structure by molding or other processing techniques.

In this way, through the connection of the connecting portion 521 , the two sealing portions 522 can be restrained from each other, and when the water blocking member 2 rotates, it can effectively ensure that the two sealing portions 522 do not move, and the installation structure is stable. The two sealing portions 522 are formed as sealing rings, and the connecting portion 521 is formed as an arc-shaped connecting piece tangent to the two sealing rings respectively. Through the tangential arc structure, there will be no stress concentration on the connecting portion 522 and it will be less likely to be deformed. In addition, the arc-shaped connecting piece can better adapt to the rotary motion of the water retaining member 2 and is not easily driven by the rotary motion of the water retaining member 2 . In other possible embodiments, the connecting portion 521 may also be formed in a straight line structure or other shapes.

In this embodiment, as shown in FIG. 11 , the connecting portion 521 is two arc-shaped connecting pieces, and the two arc-shaped connecting pieces are respectively located on opposite sides of the sealing portion 522 . In order to make the overall structure more stable. Moreover, the two arc-shaped connecting pieces are concentric and bent in the same direction. This better accommodates the rotation of the water blocking member 2 in one direction. In addition, the sealing portion 522 is formed with multiple rings of sealing wings 523 arranged concentrically and at intervals, and an annular groove is formed between adjacent sealing wings 523 . In this way, compared with a single O-ring structure, it is more difficult for water flow to pass through, and the sealing effect is better. In this embodiment, the sealing wing 523 has three turns. Moreover, a plurality of connecting wings 524 , that is, three sealing wings 524 are correspondingly formed on the connecting portion 521 , and the multi-row connecting wings 524 are correspondingly tangent to the multi-turn sealing wings 523 . Therefore, the overall structure of the second sealing member 52 is stable and the sealing performance is good.

In order to stably install the second seal, in this embodiment, the sealing rings are respectively embedded in the channel openings of the water inlet channel 11 and the concentrated water channel 113, as shown in Figure 4, the end faces of the corresponding channel openings are formed as concave structures to accommodate Embedded seals. In other possible embodiments, the sealing ring can also be embedded in the water retaining member 2 .

In order to make the rotation of the water retaining member 2 more stable, in an exemplary embodiment of the present disclosure, as shown in FIG. 5, FIG. 7 to FIG. A hollow rotating shaft 23 for rotatably inserting into the water outlet channel 112 is fixedly provided on the side of the member 2 facing the seat body 1 , that is, the water outlet channel 212 is formed in the hollow rotating shaft 23 .

In this way, the first non-return valve 61 can be inserted into the hollow shaft 23 in a sealing manner. In this embodiment, an annular groove 231 for accommodating sealing elements such as sealing rings is formed on the outer wall of the hollow rotating shaft 23 . In other possible embodiments, the hollow rotating shaft 23 can also be arranged on the seat body 1 , and the water blocking member 2 only needs to be provided with a through hole for accommodating the hollow rotating shaft 23 .

In an exemplary embodiment of the present disclosure, as shown in FIG. 5 , FIG. 7 and FIG. 10 , a limiting structure 12 is formed on the seat body 1 to limit the rotation angle of the water blocking member 2 . In this way, by designing the position of the limiting structure 12, the rotation of the water retaining member 2 can be adapted to the stagger and alignment of each through hole, and the guide of the water retaining member 2 to the first water flow channel 11 and the second water flow channel 21 can be completed more accurately. pass and cutoff.

Wherein, in this embodiment, the limiting structure 12 is an arc-shaped limiting groove formed on the seat body 1, and the side of the water retaining member 2 facing the seat body 1 is provided with a slidably accommodated in the arc-shaped limiting groove. Limit post 24. In this way, through the rotation of the water retaining member 2, the limit column 24 can slide in the arc-shaped limit and the two ends of the limit groove are limited. By setting the radian of the arc-shaped limit groove, the water retaining member 2 can be limited. Rotation angle, easy to operate.

In other possible embodiments, the limiting structure 12 can also be formed on the side wall of the seat body 1 . In addition, in some embodiments, the limiting structure on the base body 1 can also be formed as a limiting column, and the water retaining member 2 is formed with an arc-shaped sliding slot for accommodating the limiting column.

As shown in Fig. 4 and Fig. 5, in an exemplary embodiment of the present disclosure, in order to make the water retaining member 2 stably complete the plug-in operation with the filter element 3, the filter device further includes a ring detachably installed on the seat body 1 An annular gland 7 is used to rotatably press the water retaining member 2 against the seat body 1, and the annular gland 7 has a central opening for the filter element 3 to pass through. In this way, the water retaining member 2 will not be taken out of the base body 1 when the filter element 3 is pulled out, so that the installation structure of the water retaining member 2 is stable.

Wherein, in this embodiment, the annular gland 7 can be fastened on the seat body 1 by a fastener 71 , such as a screw. Fastening holes arranged at equal intervals in the circumferential direction are formed on the seat body 1 to stably fasten and install the annular gland 7 . Wherein, it is advisable that the pressure exerted by the annular gland 7 on the water retaining member 2 is to ensure that the water retaining member 2 can rotate. In other possible embodiments, the water retaining member 2 can also be installed on the seat body 1 through its own structure, for example, a threaded structure formed on the peripheral wall due to the threaded fit of the side wall of the seat body 1 can also realize rotation and avoid Pulled out by filter element 3.

As shown in Fig. 2 and Fig. 3, in another exemplary embodiment of the present disclosure, the filter element 3 of this embodiment has been improved for the water outlet problem of the concentrated water system, specifically, the concentrated water port 33 is provided with an opening pressure The second check valve 62 . In this way, the pressure of the concentrated water can be discharged normally by opening the second check valve 62 during work, but when the filter element 3 needs to be disassembled, the pressure of the concentrated water system in the filter element cannot open the second check valve 62, so that the concentrated water Blocked in the filter element 3, and prevent concentrated water from flowing out from the filter element 3.

In addition, the addition of the second check valve 62 to the concentrated water port 33 can also maintain a certain water pressure inside the filter element 3 when the filter element device stops water production, and will not allow all the water in the filter element 3 to be discharged. Water is produced under pressure, and at the same time, when the pressure is higher than the opening pressure of the second check valve 62, the concentrated water port 33 can be opened to realize the normal discharge of concentrated water and complete the flushing of the filter element.

In this embodiment, the second check valve 62 includes a valve core 621 that can move axially to connect or block the concentrated water port 33 and a spring 622 that connects the valve core 621 to the filter core 3 . Therefore, the opening pressure of the second check valve 62 can be built up by the spring 622 .

The spring 622 can be a tension spring, and the corresponding concentrated water port 33 has a stepped hole structure. When it is not opened, the valve core 621 is closely attached to the stepped end surface of the stepped hole under the action of the stretched spring to close the concentrated water port 33. When the pressure in the concentrated water port 33 increases enough to overcome the elastic force of the spring 622 , the valve core 621 can be pushed away from the end surface of the step, so that the concentrated water can be discharged normally. In other possible embodiments, the spring 622 may also be a compression spring.

In addition, the reason why the second check valve 62 is only provided at the concentrated water port 33 is to prevent the second check valve from obstructing the water flow of the water inlet 31 and the water outlet 32 when the filter element device is working normally. In some embodiments, a second non-return valve 62 may also be provided at the water outlet 32 while satisfying the water flow rate.

To sum up, the above-mentioned embodiments of the present disclosure at least provide a filter element 3; a water retaining member 2 that can rotate relative to the seat body 1; a filter element seat, which includes the above-mentioned seat body 1 and the above-mentioned retaining member The water part 2, the water retaining part is rotatably accommodated in the base body 1, and a filtering device. Through the rotary operation of the water retaining member 2, the problem of water leakage of the filter device can be avoided when the filter device stops working and the filter device is put out, which has high practicability and popularization value.

Other embodiments of the disclosure will be readily apparent to those skilled in the art from consideration of the specification and practice of the disclosure. This application is intended to cover any modification, use or adaptation of the present disclosure, and these modifications, uses or adaptations follow the general principles of the present disclosure and include common knowledge or conventional technical means in the technical field not disclosed in the present disclosure . The specification and examples are to be considered exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It should be understood that the present disclosure is not limited to the precise constructions which have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (8)

1. a seal, it is characterized in that, described seal comprises two sealings (522) and the connecting portion (521) being connected described two sealings (522), described two sealings (522) are formed as sealing ring respectively, and described connecting portion (521) is formed as arc connector tangent with two sealing rings respectively.

2. seal according to claim 1, is characterized in that, described sealing (522) and described connecting portion (521) one-body molded.

3. seal according to claim 1, is characterized in that, described connecting portion (521) is two described arc connectors, and these two arc connectors lay respectively at the relative both sides of described sealing (522).

4. seal according to claim 3, is characterized in that, described two arc connectors with one heart and bend in the same way.

5. seal according to claim 1, is characterized in that, described sealing (522) is formed with the concentric and spaced apart multi-turn sealing wing (523), and the adjacent seals wing is formed with annular groove between (523).

6. seal according to claim 5, is characterized in that, the described sealing wing (523) is three circles.

7. the seal according to claim 5 or 6, it is characterized in that, described connecting portion (521) is formed with accordingly multiple tracks connecting wing (524), this multiple tracks connecting wing (524) seals the wing (523) respectively accordingly with described multi-turn tangent.

8. a filter cartridge seat, described filter cartridge seat comprises pedestal (1), it is characterized in that, water deflector (2) is accommodated pivotally in described pedestal (1), many the first water stream channels (11) are formed in described pedestal (1), described water deflector (2) is provided with many second water stream channels (21) corresponding with described multiple first water stream channels (11) and multiple mouth of a river, the second seal (52) is provided with between described first water stream channel and described second water stream channel, this second seal (52) is for according to the seal in claim 1-7 described in any one.