Filter element assembly and water heater

Abstract

The invention discloses a filter element assembly and a water heater, and the filter element assembly comprises a connecting seat which is provided with an inlet and an outlet; the filter element comprises a shell, a filter material box, an elastic piece and a water stop pad, the filter material box, the elastic piece and the water stop pad are all arranged in the shell, one end of the shell is provided with a water inlet and a water outlet and is suitable for being detachably connected with the connecting base so that the inlet can be communicated with the water inlet and the outlet can be communicated with the water outlet, and the water stop pad is located between the filter material box and the water inlet; the elastic piece is located between the filter material box and the water stop pad to drive the water stop pad to block the water inlet, and the shell is further provided with a through hole; the ejector rod is arranged in the through hole in a penetrating mode, when the connecting base and the filter element are installed, the connecting base moves towards the filter element relative to the filter element, and the ejector rod drives the water stop pad to be separated from the water inlet so as to open the water inlet. According to the filter element assembly, the use experience of a user can be improved, residual water is prevented from wetting clothes of the user and the ground, and potential safety hazards and the labor capacity of the user are reduced.

Description

Technical Field

[0001] The invention relates to the field of water heaters, and in particular to a filter element assembly and a water heater. Background Art

[0002] Now more and more consumers are paying attention to the health of water quality, and are beginning to shift from simple water use scenarios to health areas such as moisturizing, soothing, and beautifying the skin.

[0003] There is a common design flaw in the filter elements on the market, which is that when the filter element is replaced, the water inside the filter element will spill out, greatly reducing the user's overall experience. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a filter element assembly, which can improve the user's experience, prevent residual water from wetting the user's clothes and the ground, and reduce safety hazards and the user's workload.

[0005] The present invention also provides a water heater, comprising the filter element assembly mentioned above.

[0006] According to an embodiment of the present invention, a filter element assembly comprises: a socket, on which an inlet and an outlet are provided; a filter element, the filter element comprising a shell, a filter material box, an elastic member and a water-stop pad, the filter material box, the elastic member and the water-stop pad are all arranged in the shell, one end of the shell has a water inlet and a water outlet and is suitable for being detachably connected to the socket so that the inlet is connected to the water inlet and the outlet is connected to the water outlet, the water-stop pad is located between the filter material box and the water inlet, the elastic member is located between the filter material box and the water-stop pad to drive the water-stop pad to block the water inlet, and the shell also has a through hole; a push rod, the push rod is inserted into the through hole, one end of the push rod is connected to one of the socket and the water-stop pad, and the other end is suitable for abutting against the other of the socket and the water-stop pad, when the socket and the filter element are installed, the socket moves toward the filter element relative to the filter element, and the push rod drives the water-stop pad to be spaced apart from the water inlet to open the water inlet.

[0007] According to the filter element assembly of the embodiment of the present invention, the filter element includes a shell, a filter box, an elastic member and a water stop pad. The shell is provided with a water inlet and a water outlet, the water stop pad is located between the filter box and the water inlet, a through hole is provided on the shell, the connector has an inlet and an outlet, the connector and the shell are detachably connected to make the inlet communicate with the water inlet, and the outlet communicate with the water outlet, a push rod is passed through the through hole, one end of the push rod is connected to one of the connector and the water stop pad, and the other end is stopped at the other of the connector and the water stop pad. After the connector and the filter element are disassembled, the water stop pad can block the water inlet under the action of the elastic member to prevent water in the filter element from flowing out from the water inlet, which can improve the user's experience, prevent residual water from wetting the user's clothes and the ground, and reduce safety hazards and the user's labor; when the connector and the filter element are installed, the connector moves toward the filter element relative to the filter element, and the push rod drives the water stop pad to be separated from the water inlet to open the water inlet, thereby realizing the connection between the water inlet and the inlet, and the water entering the inlet can flow to the filter element through the water inlet for filtration.

[0008] In some embodiments of the present invention, the socket and the shell are rotatably engaged.

[0009] In some embodiments of the present invention, the inner circumferential wall of the socket is provided with a sliding rail protruding from the inner circumferential wall of the socket, the sliding rail is spaced apart from the inner bottom wall of the socket to define a accommodating space, the outer circumferential wall of the shell is provided with a sliding rib protruding from the outer circumferential wall of the shell, the sliding rib is suitable for being located in the accommodating space, and along the rotation direction of the socket when it is installed, the surface of the sliding rib facing away from the inner bottom wall of the socket is inclined toward a direction away from the inner bottom wall of the socket.

[0010] In some embodiments of the present invention, one end of the push rod is fixedly connected to the water stop pad, and the other end of the push rod is suitable for sliding against the receiving seat, and the cross-sectional shape and size of the through hole are the same as those of the push rod.

[0011] In some embodiments of the present invention, one end of the push rod is fixedly connected to the seat, the other end of the push rod is suitable for sliding against the water-stop pad, and the through hole extends along the circumferential direction of the shell.

[0012] In some embodiments of the present invention, the push rods are multiple and spaced apart, and the through holes are multiple and correspond one to one with the multiple push rods.

[0013] In some embodiments of the present invention, a positioning protrusion is provided on the side of the filter box facing the water stop pad, and the positioning protrusion is a plurality of protrusions arranged at intervals along the circumferential direction of the filter box or the positioning protrusion extends in a ring shape along the circumferential direction of the filter box, and the end of the elastic member away from the water stop pad is located in the space defined by the positioning protrusion.

[0014] In some embodiments of the present invention, the elastic member is a spring.

[0015] In some embodiments of the present invention, the water inlets are multiple and spaced apart along the circumferential direction of the shell, the water outlet is provided at the center of the shell, and the water stop pad is annular and extends along the circumferential direction of the shell.

[0016] In some embodiments of the present invention, the inner circumferential wall of the shell at one end away from the water inlet has fixing ribs, and the fixing ribs are multiple and spaced apart along the circumferential direction of the shell, and the filter box is located in the space defined by the multiple fixing ribs.

[0017] In some embodiments of the present invention, the outer peripheral wall of the filter box and the shell together define the water inlet channel, the filter box defines a water outlet channel, the water inlet channel is connected to the water inlet, and the water outlet channel is connected to the water outlet.

[0018] In some embodiments of the present invention, the filter box includes: a filter box upper cover, the elastic member is located between the water stop pad and the filter box upper cover, the side of the filter box upper cover facing away from the water inlet has an annular filter screen extending along the circumferential direction of the filter box upper cover, the outer peripheral wall of the filter box upper cover and the shell together define the water inlet channel, and the filter box upper cover has a connecting port for connecting the water outlet channel and the water outlet; a filter box lower shell, an end of the filter box lower shell close to the water inlet extends into the filter box upper cover, the filter box lower shell is used to accommodate filter material, the water outlet channel is defined in the filter box lower shell, and the peripheral wall of the filter box lower shell has a water opening for connecting the water inlet channel and the water outlet channel.

[0019] In some embodiments of the present invention, the outer peripheral wall of the filter box lower shell has limiting ribs extending along the circumferential direction of the filter box lower shell, and the end of the filter box upper cover facing away from the water inlet is supported on the limiting ribs.

[0020] In some embodiments of the present invention, one end of the shell provided with the water outlet has an inwardly extending extension piece, the extension piece has a connecting channel therein, and the connecting channel is connected with the communicating port and the water outlet.

[0021] In some embodiments of the present invention, the end of the filter box upper cover facing the water inlet has a protrusion, the communication port passes through the protrusion, and one end of the extension piece is sleeved outside the protrusion.

[0022] In some embodiments of the present invention, a second sealing ring is provided between the inner peripheral wall of the extension piece and the outer peripheral wall of the protrusion.

[0023] In some embodiments of the present invention, a valve assembly is provided in the socket, and the valve assembly has an on state and a off state; wherein, after the filter element is assembled with the socket, the valve assembly is in the on state, the water inlet is connected with the inlet, and the water outlet is connected with the outlet; after the filter element is separated from the socket, the valve assembly is in the off state, the water inlet is separated from the inlet, and the water outlet is separated from the outlet.

[0024] In some embodiments of the present invention, when the filter element is assembled with the socket, the filter element contacts and cooperates with the valve assembly so that the valve assembly switches from the cut-off state to the on state.

[0025] In some embodiments of the present invention, in the on state, the inlet is isolated from the outlet; in the off state, the inlet is connected to the outlet.

[0026] A water heater according to an embodiment of the present invention includes the above-mentioned filter element assembly.

[0027] According to the water heater of the embodiment of the present invention, by setting the above-mentioned filter element assembly, a filter element is set, and the filter element includes a shell, a filter material box, an elastic member and a water stop pad. The shell is provided with a water inlet and a water outlet, the water stop pad is located between the filter material box and the water inlet, a through hole is set on the shell, and the socket has an inlet and an outlet. The socket and the shell are detachably connected to make the inlet communicate with the water inlet, and the outlet communicate with the water outlet. The top rod is passed through the through hole, one end of the top rod is connected to one of the socket and the water stop pad, and the other end is connected to one of the socket and the water stop pad. Another stop, after the connector and filter element are disassembled, the water stop pad can block the water inlet under the action of the elastic part, preventing water in the filter element from flowing out of the water inlet, which can improve the user experience, avoid residual water wetting the user's clothes and the ground, and reduce safety hazards and user labor. When the connector and filter element are installed, the connector moves toward the filter element relative to the filter element, and the push rod drives the water stop pad to be separated from the water inlet to open the water inlet, thereby realizing the connection between the water inlet and the inlet, and the water entering the inlet can flow to the filter element through the water inlet for filtration.

[0028] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0030] Figure 1 is an exploded view of a filter element assembly according to an embodiment of the present invention, wherein one end of the ejector rod is connected to the housing;

[0031] Figure 2 is an exploded view of a filter element assembly according to an embodiment of the present invention, wherein one end of the ejector rod is connected to a water stop pad;

[0032] Figure 3 is an exploded view of a filter element assembly according to an embodiment of the present invention, wherein the view shows the connector and the filter element before assembly;

[0033] Figure 4 is a cross-sectional view of a filter element assembly according to an embodiment of the present invention, wherein the view shows the connector and the filter element before assembly;

[0034] Figure 5 is a cross-sectional view of a filter element assembly according to an embodiment of the present invention, wherein the assembly of the receiving seat and the filter element is shown;

[0035] Figure 6 is a three-dimensional view of a filter material box upper cover of a filter element of a filter element assembly according to an embodiment of the present invention;

[0036] Figure 7 is a three-dimensional view of a filter material box lower shell of a filter element of a filter element assembly according to an embodiment of the present invention;

[0037] Figure 8 is a cross-sectional view of a valve assembly of a filter element assembly according to an embodiment of the present invention, wherein the valve assembly is in a conducting state, the first valve core is in a first position, and the second valve core is in a third position;

[0038] Fig. 9 is a cross-sectional view of a valve assembly of a filter element assembly according to an embodiment of the present invention, wherein when the valve assembly is in a cut-off state, the first valve core is in a second position and the second valve core is in a fourth position;

[0039] Fig.10 is a perspective view of a lower housing of a filter element of a filter element assembly according to an embodiment of the present invention;

[0040] Fig.11 is a three-dimensional view of an elastic member of a filter element of a filter element assembly according to an embodiment of the present invention;

[0041] Fig.12 is a front view of an elastic member of a filter element of a filter element assembly according to an embodiment of the present invention;

[0042] Fig.13 is a cross-sectional view of a water stop pad of a filter element of a filter element assembly according to an embodiment of the present invention;

[0043] Fig.14 Detailed description of the invention The figure is a bottom view of a water stop pad of a filter element of a filter element assembly according to an embodiment of the present invention.

[0044] Reference numerals:

[0045] 100. Filter element assembly;

[0046] 10. Filter element;

[0047] 1. Shell; 11. Water inlet; 12. Water outlet; 13. Fixing ribs; 14. Extension piece; 141. Connecting channel; 15. Through hole; 16. Upper shell; 17. Lower shell; 18. Sliding ribs;

[0048] 2. Filter box; 21. Filter box upper cover; 211. Annular filter screen; 212. Water inlet channel; 213. Communication port; 214. Protrusion; 215. Positioning protrusion; 216. Support rib; 22. Filter box lower shell; 221. Water outlet channel; 222. Water outlet; 223. Limiting rib; 23. First sealing ring; 24. Second sealing ring; 25. Third sealing ring; 26. Fourth sealing ring; 27. Fifth sealing ring; 28. Sixth sealing ring; 29. ​​Stopper; 291. Circular ring; 292. Connecting part;

[0049] 3. Water stop pad; 31. Positioning groove;

[0050] 4. elastic member; 41. first positioning section; 42. second positioning section;

[0051] 5. Check valve;

[0052] 20, socket; 201, first installation cavity; 202, second installation cavity; 203, connecting cavity; 204, inlet; 205, outlet; 206, slide rail;

[0053] 30. Valve assembly; 301. First stop valve; 3011. First valve seat; 3012. First valve core; 302. Second stop valve; 3021. Second valve seat; 3022. Second valve core; 303. First communication channel; 304. Second communication channel; 305. First spring; 306. Second spring;

[0054] 40. Push rod. DETAILED DESCRIPTION

[0055] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0056] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0057] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] The filter element assembly 100 according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

[0059] like Figure 1 and Figure 2 As shown, the filter element assembly 100 according to the embodiment of the present invention includes a socket 20 , a filter element 10 and a push rod 40 .

[0060] Specifically, refer to Figure 1 , Figure 2 , Figure 4 and Figure 5 An inlet 204 and an outlet 205 are provided on the socket 20, and the filter element 10 includes a shell 1, a filter box 2, an elastic member 4 and a water stop pad 3. The filter box 2, the elastic member 4 and the water stop pad 3 are all arranged in the shell 1, and one end of the shell 1 has a water inlet 11 and a water outlet 12 and is suitable for a detachable connection with the socket 20 to make the inlet 204 communicate with the water inlet 11 and the outlet 205 communicate with the water outlet 12, the water stop pad 3 is located between the filter box 2 and the water inlet 11, and the elastic member 4 is located between the filter box 2 and the water stop pad 3 to drive the water stop pad 3 to block the water inlet 11.

[0061] It is understandable that the upper end of the filter element 10 has a socket 20, and the socket 20 is used for detachable connection with the filter element 10. The socket 20 is used to install the filter element 10. For example, the socket 20 can be provided on a water-using device such as a water heater, and the filter element 10 can be connected to the water heater through the socket 20 to filter the water flowing into the water heater or the water flowing out of the water heater. After the filter element 10 is assembled, the elastic force generated by the elastic member 4 due to its own deformation will act on the water stop pad 3, driving the water stop pad 3 to move toward the direction close to the water inlet 11, so that the water stop pad 3 is deformed and pressed against the water inlet 11, ensuring the sealing of the filter element 10, and preventing the residual water inside the filter element 10 from leaking from the water inlet 11, which can improve the user's experience, prevent the residual water from wetting the user's clothes and the ground, and reduce safety hazards and the user's labor.

[0062] The shell 1 also has a through hole 15, and the push rod 40 is inserted into the through hole 15. One end of the push rod 40 is connected to one of the socket 20 and the water stop pad 3, and the other end is suitable for abutting against the other of the socket 20 and the water stop pad 3. When the socket 20 and the filter element 10 are installed, the socket 20 moves relative to the filter element 10 toward the filter element 10, and the push rod 40 drives the water stop pad 3 to be spaced apart from the water inlet 11 to open the water inlet 11.

[0063] like Figure 4 As shown, one end of the push rod 40 is fixedly connected to the socket 20, and the other end is suitable for abutting against the water stop pad 3. When the filter element 10 is matched with the socket 20, the socket 20 moves toward the filter element 10 relative to the filter element 10, and the push rod 40 extends into the through hole 15 and abuts against the water stop pad 3. In the process of the socket 20 moving toward the filter element 10, the push rod 40 also moves toward the filter element 10, so that the push rod 40 pushes the water stop pad 3 to overcome the elastic force of the elastic member 4 and move toward the filter box 1, thereby making the water stop pad 3 and the water inlet 11 spaced apart in the axial direction of the water inlet 11, and the water stop pad 3 no longer blocks the water inlet 11, and the water inlet 11 is opened, so that the water inlet 11 and the inlet 204 are in a connected state, and the water entering the inlet 204 can enter the filter element 10 through the water inlet 11 for filtration, and flow out from the outlet 205 through the water outlet 12 after being filtered by the filter box 2.

[0064] When the filter element 10 and the socket 20 are released from engagement, the socket 20 moves away from the filter element 10, and the push rod 40 moves away from the filter element 10, and the pressure exerted by the push rod 40 on the water stop pad 3 gradually decreases until it disappears. Figure 5 As shown, under the action of the elastic member 4, the elastic member 4 drives the water stop pad 3 to move toward the direction close to the water inlet 11 so that the water stop pad 3 is pressed against the water inlet 11, blocking the water inlet 11, so that the liquid flowing into the inlet 204 is blocked outside the water inlet 11, achieving a water sealing effect.

[0065] According to the filter element assembly 100 of the embodiment of the present invention, the filter element 10 includes a shell 1, a filter box 2, an elastic member 4 and a water stop pad 3. The shell 1 is provided with a water inlet 11 and a water outlet 12. The water stop pad 3 is located between the filter box 2 and the water inlet 11. A through hole 15 is provided on the shell 1. The socket 20 has an inlet 204 and an outlet 205. The socket 20 is detachably connected to the shell 1 so that the inlet 204 is connected to the water inlet 11, and the outlet 205 is connected to the water outlet 12. The push rod 40 is inserted into the through hole 15. One end of the push rod 40 is connected to one of the socket 20 and the water stop pad 3, and the other end is connected to the other of the socket 20 and the water stop pad 3. A stopper. After the connector 20 and the filter element 10 are disassembled, the water stop pad 3 can block the water inlet 11 under the action of the elastic member 4 to prevent the water in the filter element 10 from flowing out from the water inlet 11, which can improve the user experience, prevent residual water from wetting the user's clothes and the ground, and reduce safety hazards and the user's labor. When the connector 20 and the filter element 10 are installed, the connector 20 moves toward the filter element 10 relative to the filter element 10, and the push rod 40 drives the water stop pad 3 to be separated from the water inlet 11 to open the water inlet 11, thereby realizing the connection between the water inlet 11 and the inlet 204. The water entering the inlet 204 can flow to the filter element 10 through the water inlet 11 for filtration.

[0066] In some embodiments of the present invention, Figure 1 and Figure 3 As shown, the socket 20 and the shell 1 are rotationally connected, thereby improving the assembly portability and assembly efficiency of the socket 20 and the shell 1, and at the same time can improve the reliability of the connection between the socket 20 and the shell 1, and can ensure that during the rotational connection of the socket 20 and the shell 1, the socket 20 moves toward the filter element 10, so that the top rod 40 moves toward the filter element 10 with the socket 20, and then stops with the water stop pad 3. After the socket 20 and the filter element 10 are installed, it is ensured that the water inlet 11 is opened, the inlet 204 can be connected to the water inlet 11, and the water entering from the inlet 204 can enter the filter element 10 through the water inlet 11 for filtration.

[0067] In some embodiments of the present invention, Figure 3As shown, the inner circumferential wall of the socket 20 is provided with a slide rail 206 protruding from the inner circumferential wall of the socket 20, and the slide rail 206 is spaced apart from the inner bottom wall of the socket 20 to define a accommodating space. The outer circumferential wall of the shell 1 is provided with a slide rib 18 protruding from the outer circumferential wall of the shell 1, and the slide rib 18 is suitable for being located in the accommodating space. Along the rotation direction of the socket 20 when the socket 20 is installed, the surface of the slide rib 18 facing away from the inner bottom wall of the socket 20 is inclined toward a direction away from the inner bottom wall of the socket 20. During the installation of the socket 20 and the shell 1, the socket 20 and the shell 1 are aligned, that is, one end of the sliding bar 18 is aligned with the opening of the accommodating space, and then the socket 20 is rotated. During the rotation of the socket 20, the sliding bar 18 gradually enters the accommodating space, and along the rotation direction of the socket 20 during installation, since the surface of the sliding bar 18 facing away from the inner bottom wall of the socket 20 is inclined toward the direction away from the inner bottom wall of the socket 20, during the rotation of the socket 20 relative to the shell 1, the socket 20 gradually moves toward the filter element 10, so that the top rod 40 moves with the socket toward the filter element 10, and then stops with the water stop pad 3. After the socket 20 and the filter element 10 are installed, ensure that the water inlet 11 is opened, and the inlet 204 can be connected to the water inlet 11. Water entering from the inlet 204 can enter the filter element 10 through the water inlet 11 for filtration.

[0068] In addition, the cooperation between the slide rail 206 and the slide rib 18 improves the assembly portability and efficiency of the socket 20 and the housing 1 .

[0069] In some embodiments of the present invention, Figure 2 As shown, one end of the push rod 40 is fixedly connected to the water stop pad 3, and the other end of the push rod 40 is suitable for sliding against the socket 20, and the cross-sectional shape and size of the through hole 15 are the same as the cross-sectional shape and size of the push rod 40. During the installation of the socket 20 and the housing 1, the socket 20 rotates relative to the housing 1 and moves toward the filter element 10. During the movement of the socket 20 toward the filter element 10, the push rod 40 is pushed toward the filter element 10, so that the push rod 40 drives the water stop pad 3 to be separated from the water inlet 11 to open the water inlet 11, and the socket 20 rotates relative to the housing 1, so that the push rod 40 and the socket 20 slide against each other relatively. In this embodiment, since there is no relative rotation between the push rod 40 and the housing 1, the push rod 40 can be prevented from rotating, thereby improving the connection stability between the push rod 40 and the housing 1.

[0070] Furthermore, the cross-sectional shape and size of the through hole 15 are the same as those of the mandrel 40, so that the through hole 15 is large and the sealing is unreliable and leaking occurs, the sealing performance is better, and the radial movement of the mandrel 40 relative to the through hole 15 can be reduced, so that the movement of the mandrel 40 is smoother. Optionally, the mandrel 40 is detachably connected to the water stop pad 3, thereby facilitating the replacement of the mandrel 40 and the water stop pad 3 and improving the durability of the structure.

[0071] In other embodiments of the present invention, Figure 1 As shown, one end of the push rod 40 is fixedly connected to the socket 20, and the other end of the push rod 40 is suitable for sliding against the water stop pad 3, and the through hole 15 extends along the circumferential direction of the shell 1. During the installation of the socket 20 and the shell 1, the socket 20 rotates relative to the shell 1 and moves toward the filter element 10. During the movement of the socket 20 toward the filter element 10, since the push rod 40 and the socket 20 are connected, the push rod 40 is driven to move toward the filter element 10, so that the push rod 40 drives the water stop pad 3 to be separated from the water inlet 11 to open the water inlet 11. Since the socket 20 rotates relative to the shell 1, the push rod 40 also rotates relative to the shell 1, and the through hole 15 extends along the circumferential direction of the shell 1, so that the push rod 40 can rotate relative to the shell 1 without obstruction, thereby improving the assembly efficiency.

[0072] Preferably, the push rod 40 and the receiving seat 20 are an integral part, so that the push rod 40 does not need to be arranged on the water stop pad 3, and the push rod 40 has good integrity, simplifies the installation steps, and has a simpler structure.

[0073] Optionally, the water inlet 11 and the through hole 15 are the same hole, and the area in the through hole 15 except the top rod 40 is used for the flow of water.

[0074] In some embodiments of the present invention, Figure 2 As shown, there are multiple push rods 40 spaced apart, and the through holes 15 are multiple and correspond to the multiple push rods 40 one by one. The multiple push rods 40 make it more reliable for the push rods 40 to drive the water stop pad 3 to move, and also improve the positioning effect of the water stop pad 3 when opening the water inlet 11. Figure 2 In the example shown, there are two push rods 40, but the present invention is not limited thereto, and there may be more push rods 40, such as 3, 4, 5 or 6. At the same time, there are also correspondingly many through holes 15, which further reduces the radial movement of the push rod 40 relative to the through holes 15, making the movement of the push rod 40 more stable.

[0075] In some embodiments of the present invention, Figure 6 As shown, a positioning protrusion 215 is provided on one side of the filter box 2 facing the water stop pad 3. The positioning protrusion 215 is a plurality of positioning protrusions 215 arranged at intervals along the circumferential direction of the filter box 2 or the positioning protrusion 215 extends in a ring shape along the circumferential direction of the filter box 2. The end of the elastic member 4 away from the water stop pad 3 is located in the space defined by the positioning protrusion 215. The setting of the positioning protrusion 215 can limit the elastic member 4, prevent the elastic member 4 from moving in the radial direction, improve the structural stability, and thus ensure the reliability of the water stop pad 3 in blocking the water inlet 11.

[0076] exist Figure 6In the example shown, there are four positioning protrusions 215 spaced apart along the circumferential direction of the shell 1, and the four positioning protrusions 215 are evenly spaced apart, but the present invention is not limited to this. The positioning protrusions 215 can be more or less, such as 3, 5, 6 or 7, etc., and the positioning protrusions 215 can also be ring-shaped extending along the circumferential direction of the filter box cover 21.

[0077] It is understandable that if Fig.11 and Fig.12 As shown, the end of the elastic member 4 facing away from the water inlet 11 has a first positioning section 41. Along the axial direction of the shell 1, the shape and size of the outer contour of the first positioning section 41 remain unchanged. The first positioning section 41 is located in the space defined by the positioning protrusion 215. The outer contour of the first positioning section 41 fits with the inner wall of the positioning protrusion 215, which can increase the contact area between the elastic member 4 and the positioning protrusion 215, enhance the limiting effect of the positioning protrusion 215 on the elastic member 4, and improve the structural stability.

[0078] like Fig.12 and Figure 6 As shown, along the axial direction of the shell 1, the height of the first positioning section 41 is H1, the height of the positioning protrusion 215 is H2, and it satisfies: H2>H1, which can ensure sufficient blocking height to prevent the first positioning section 41 from escaping from the space defined by the positioning protrusion 215, further ensure the reliability of the cooperation between the elastic member 4 and the positioning protrusion 215, thereby ensuring the stability of the water stop pad 3 in blocking the water inlet 11.

[0079] Furthermore, if Figure 6 As shown, the end surface of the filter material box 2 facing the water inlet 11 is provided with a support rib 216, which is located in the space defined by the positioning protrusion 215 and is eight in number and spaced apart along the circumferential direction of the filter material box 2, and each support rib 216 extends in the radial direction of the filter material box 2, and the end of the elastic member 4 away from the water inlet 11 can be located in the space defined by the positioning protrusion 215 and the support rib 216, which can increase the contact area between the elastic member 4 and the positioning protrusion 215, enhance the limiting effect of the positioning protrusion 215 on the elastic member 4, and improve the structural stability. Of course, the present invention is not limited thereto, and the support ribs 216 can also be more or less, such as 4, 5, 10 or 12, etc.

[0080] like Fig.12 and Figure 6 As shown, along the axial direction of the shell 1, the height of the first positioning section 41 is H1, the height of the positioning protrusion 215 is H2, and the height of the support rib 216 is H5, and it satisfies: H2-H5>H1, which can ensure sufficient blocking height while supporting the elastic member 4, preventing the first positioning section 41 from escaping from the space defined by the positioning protrusion 215 and the support rib 216, thereby ensuring the stability of the water stop pad 3 in blocking the water inlet 11.

[0081] In addition, if Fig.11 and Fig.12 As shown, the outer contour dimension of the elastic member 4 near the filter box 2 is larger than the outer contour dimension of the elastic member 4 near the water stop pad 3, which can improve the stability of the elastic member 4 and avoid the axis of the elastic member 4 near the filter box 2 being inconsistent with the axis of the elastic member 4 near the water stop pad 3.

[0082] Furthermore, if Fig.14 As shown, a positioning groove 31 for limiting the movement of the elastic member 4 is provided on one side of the water stop pad 3 facing the filter box upper cover 21, thereby limiting the movement of the elastic member 4 relative to the water stop pad 3, so that the elastic member 4 can drive the water stop pad 3 to move.

[0083] The end of the elastic member 4 away from the filter box upper cover 21 is located in the positioning groove 31. It can be understood that the positioning groove 31 extends in a ring shape along the circumferential direction of the water stop pad 3, and the end of the elastic member 4 away from the filter box 2 is located in the positioning groove 31. The setting of the positioning groove 31 can limit the end of the elastic member 4 away from the filter box 2, prevent the elastic member 4 from moving in the radial direction, improve the structural stability, and thus ensure the reliability of the water stop pad 3 blocking the water inlet 11.

[0084] Furthermore, if Fig.11 and Fig.12 As shown, the end of the elastic member 4 away from the filter box 2 has a second positioning section 42. Along the axial direction of the shell 1, the shape and size of the outer contour of the second positioning section 42 remain unchanged. The second positioning section 42 is located in the positioning groove 31. The outer contour of the second positioning section 42 fits the inner wall of the positioning groove 31, which can increase the contact area between the elastic member 4 and the positioning groove 31, enhance the limiting effect of the positioning groove 31 on the elastic member 4, and improve the structural stability.

[0085] like Figure 6 and Fig.13 As shown, along the axial direction of the shell 1, the height of the second positioning section 42 is H3, the depth of the positioning groove 31 is H4, and it satisfies: H4>H3, which can ensure sufficient blocking depth to prevent the second positioning section 42 from escaping from the positioning groove 31, further ensure the reliability of the cooperation between the elastic member 4 and the positioning groove 31, thereby ensuring the stability of the water stop pad 3 in blocking the water inlet 11.

[0086] In addition, if Fig.12 and Fig.11 As shown, along the axial direction of the shell 1, at least one of the two end faces of the elastic member 4 is a plane, which can increase the contact area between the elastic member 4 and the water stop pad 3 and / or the filter box 2, and further avoid radial deviation of the elastic member 4, thereby ensuring that the water stop pad 3 will not produce radial movement, thereby ensuring the reliability of the water stop pad 3 in blocking the water inlet 11.

[0087] The end of the elastic member 4 close to the filter box 2 may be a plane, which can increase the contact area between the first positioning section 41 and the support rib 216, and further avoid the radial deviation of the elastic member 4; the end of the elastic member 4 away from the filter box 2 may be a plane, which can increase the contact area between the second positioning section 42 and the positioning groove 31, and further avoid the radial deviation of the elastic member 4; or both ends of the elastic member 4 in the axial direction may be planes, which can increase the contact area between the first positioning section 41 and the support rib 216 and the contact area between the second positioning section 42 and the positioning groove 31, and further avoid the radial deviation of the elastic member 4.

[0088] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the elastic member 4 is a spring, which is light in weight and low in cost, and can reduce the production cost and weight of the filter element 10.

[0089] In some embodiments of the present invention, Figure 5 As shown, the water inlets 11 are multiple and spaced apart along the circumferential direction of the shell 1, thereby increasing the water intake and improving efficiency. The water outlet 12 is arranged at the center of the shell 1, so that the water outlet can be concentrated, and the structure is simple. The water stop pad 3 is a ring extending along the circumferential direction of the shell 1. It can be understood that since the water inlets 11 are multiple and spaced apart along the circumferential direction of the shell 1, and the water stop pad 3 is a ring extending along the circumferential direction of the shell 1, the water stop pad 3 can block all the water inlets 11 at the same time, thereby improving the blocking effect, improving the sealing, and simplifying the structure of the water stop pad 3. In addition, the water stop pad 3 is a ring, and the hollow position thereof can avoid the setting of the water outlet 12, making the structure reasonable.

[0090] For example, Figure 5 In the example shown, there are two water inlets 11 spaced apart along the circumferential direction of the shell 1, but the present invention is not limited thereto, and there may be more water inlets 11 spaced apart along the circumferential direction of the shell 1, such as 3, 4, 5 or 6 water inlets.

[0091] Among them, when the water stop pad 3 is annular and when one end of the push rod 40 is fixedly connected to the socket 20, multiple push rods 40 are evenly spaced along the circumferential direction of the socket 20, so that the driving force applied to the water stop pad 3 is more uniform along the circumferential direction of the water stop pad 3. When one end of the push rod 40 is connected to the water stop pad 3, multiple push rods 40 are evenly spaced along the circumferential direction of the water stop pad 3, so that the driving force applied to the water stop pad 3 is more uniform along the circumferential direction of the water stop pad 3, thereby increasing the working reliability of the water stop pad 3.

[0092] Furthermore, the water stop pad 3 is a silicone rubber part, an EPDM rubber part, a NBR rubber part, or a fluororubber part, and has a certain elasticity, which can ensure the stability of the cooperation between the water stop pad 3 and the elastic part 4 and improve the reliability of the water stop pad 3 in blocking the water inlet 11.

[0093] In some embodiments of the present invention, Fig.10 As shown, the inner circumferential wall of the shell 1 at one end away from the water inlet 11 is provided with fixing ribs 13 , and the fixing ribs 13 are multiple and spaced apart along the circumferential direction of the shell 1 . The filter box 2 is located in the space defined by the multiple fixing ribs 13 .

[0094] It can be understood that one end of the fixing rib 13 is connected to the inner circumferential wall of the shell 1 away from the water inlet 11, and the other end extends inwardly along the radial direction of the shell 1. The fixing rib 13 can position the filter box 2 from the circumferential direction of the filter box 2 to prevent the filter box 2 from moving in the shell 1, thereby improving the fixing effect of the filter box 2, thereby further preventing the filter material from leaking out, and at the same time ensuring that the axis of the filter box 2 coincides with the axis of the shell 1, which can ensure that the water outlet 12 is opposite to the water outlet channel 221, avoiding mixing of liquids in the water outlet channel 221 and the water inlet channel 212, thereby ensuring the filtering effect of the filter element 10 and improving the user experience.

[0095] For example, Fig.10 In the example shown, there are six fixing ribs 13 spaced apart along the circumferential direction of the housing 1. The six fixing ribs 13 are evenly spaced apart, and can play a positioning role at six locations along the circumferential direction of the filter box 2 to prevent the filter box 2 from moving inside the housing 1. However, the present invention is not limited thereto, and the fixing ribs 13 can be more or less spaced apart along the circumferential direction of the housing 1, such as 2, 3, 4, 5 or 7, etc.

[0096] In some embodiments of the present invention, Figure 5 As shown, the outer peripheral wall of the filter box 2 and the housing 1 jointly define a water inlet channel 212, and a water outlet channel 221 is defined in the filter box 2, so that the water inlet channel 212 and the water outlet channel 221 can be separated by the filter box 2 to prevent water from mixing and affecting the filtering effect. Furthermore, the water inlet channel 212 is connected to the water inlet 11, and the water outlet channel 221 is connected to the water outlet 12, so that the structure is reasonable.

[0097] The flow path of water in the filter element 10 is as follows: water enters the filter element 10 from the water inlet 11 and flows to the water inlet channel 212 , after being filtered by the filter element 10 , flows to the water outlet channel 221 , then flows to the water outlet 12 , and finally flows out of the filter element 10 .

[0098] In some embodiments of the present invention, Figure 1 , Figure 2 , Figure 6 and Figure 7As shown, the filter box 2 includes a filter box upper cover 21 and a filter box lower shell 22, the elastic member 4 is located between the water stop pad 3 and the filter box upper cover 21, and the side of the filter box upper cover 21 facing away from the water inlet 11 has an annular filter screen 211 extending along the circumferential direction of the filter box upper cover 21. The filter material in the filter box lower shell 22 can filter and purify the liquid entering the filter box lower shell 22, and the annular filter screen 211 can preliminarily filter and purify the liquid entering the filter box lower shell 22 to improve the purification effect. At the same time, the annular filter screen 211 is arranged on the outside of the filter box lower shell 22 to reduce the leakage of the filter material.

[0099] The outer peripheral wall of the filter box upper cover 21 and the housing 1 jointly define a water inlet channel 212, and the filter box upper cover 21 has a connecting port 213 for connecting the water outlet channel 221 and the water outlet 12. It can be understood that the connecting port 213 has a stopper 29, and the stopper 29 includes a circular portion 291 and a connecting portion 292. The axis of the circular portion 291 coincides with the axis of the connecting port 213, and the outer peripheral wall of the circular portion 291 is spaced apart from the inner peripheral wall of the connecting port 213. The circular portion 291 has a through hole connected to the connecting port 213, and the connecting portion 292 extends from the outer edge of the circular portion 291 to the inner wall surface of the connecting port 213, and the connecting portion 292 is along the circular portion 291. The ring portion 291 is provided with multiple spaced apart circumferentially, and the connecting portion 292 is used to connect the circular ring portion 291 and the inner wall of the communication port 213, and can also prevent the filter material from leaking out, while the filtered liquid can flow out of the water outlet channel 221 through the gaps between adjacent connecting portions 292 and the through holes of the circular ring portion 291, thereby allowing the liquid to flow out of the filter material box 2 and out of the water outlet channel 221, and reducing the leakage of the filter material from the filter material box upper cover 21. Figure 3 In the example shown, there are four connecting parts 292 , but the present invention is not limited thereto, and the number of connecting parts 292 may be more or less, such as 2, 5, 6 or 7.

[0100] One end of the filter box lower shell 22 close to the water inlet 11 extends into the filter box upper cover 21. The filter box lower shell 22 is used to accommodate filter material. A water outlet channel 221 is defined in the filter box lower shell 22. A water through hole 222 for connecting the water inlet channel 212 and the water outlet channel 221 is provided on the peripheral wall of the filter box lower shell 22. The axial direction of the filter box lower shell 22 is the height direction of the filter box lower shell 22. At a certain height position of the filter box lower shell 22, there are multiple water openings 222 spaced apart along the circumferential direction of the filter box lower shell 22. Each water opening 222 extends along the circumferential direction of the filter box lower shell 22. In addition, multiple water openings 222 are also spaced apart in the axial direction of the filter box lower shell 22. The water openings 222 are used for liquid to enter or flow out of the filter box lower shell 22. In the axial direction of the filter box lower shell 22, adjacent water openings 222 are spaced apart to prevent filter material from leaking out. As a result, liquid can enter the filter box lower shell 22 from the water inlet channel 212, and leakage of filter material from the peripheral wall of the filter box lower shell 22 can be reduced.

[0101] The flow path of water in the filter element 10 is as follows: water flows into the filter element 10 from the water inlet 11 and flows to the water inlet channel 212, is initially filtered through the annular filter mesh 211 and flows to the filter box lower shell 22, then enters the filter box lower shell 22 through multiple water ports 222 for filtration, and after being filtered by the filter element 10, flows to the water outlet channel 221, flows out of the filter box 2 through the connecting port 213, then flows to the water outlet 12, and finally flows out of the filter element 10.

[0102] Furthermore, a first sealing ring 23 is provided between the inner peripheral wall of the filter box upper cover 21 and the outer peripheral wall of the filter box lower shell 22. It is understandable that the first sealing ring 23 and the inner peripheral wall of the filter box upper cover 21 and the outer peripheral wall of the filter box lower shell 22 can be interference fit, so that the filter box upper cover 21 and the filter box lower shell 22 are reliably connected, thereby improving the sealing performance and further preventing the filter material from leaking out. In addition, an annular groove is provided on the peripheral wall of the upper end of the filter box lower shell 22, and the annular groove is recessed in the radial inward direction of the filter box lower shell 22. The first sealing ring 23 is arranged in the annular groove, so that the first sealing ring 23 is not easy to move relative to the filter box lower shell 22, thereby improving the fixing effect.

[0103] In addition, the housing 1 includes an upper housing 16 and a lower housing 17, and the water inlet 11 and the water outlet 12 are arranged on the upper housing 1, thereby facilitating the assembly of the filter box 2. In addition, a third sealing ring 25 is provided between the upper housing 16 and the lower housing 17, thereby preventing liquid from flowing out of the gap between the upper housing 16 and the lower housing 17, thereby improving the sealing performance.

[0104] The steps for installing the filter element 10 are: put the filter material into the lower shell 22 of the filter box, match and connect the lower shell 22 and the upper cover 21 of the filter box, and finally install it with the shell 1, wherein the lower shell 22 of the filter box and the upper cover 21 of the filter box can be fixedly connected by threads or ultrasonic welding.

[0105] In some embodiments of the present invention, Figure 7 As shown, the outer peripheral wall of the filter box lower shell 22 is provided with a limiting rib 223 extending in the circumferential direction of the filter box lower shell 22, and the end of the filter box upper cover 21 away from the water inlet 11 is supported on the limiting rib 223. Therefore, after the filter box lower shell 22 and the filter box upper cover 21 are assembled, the filter box upper cover 21 is prevented from moving downward relative to the filter box upper cover 21, thereby improving the assembly stability of the filter box lower shell 22 and the filter box upper cover 21, and at the same time, it can further prevent the filter material from flowing out from the gap between the filter box lower shell 22 and the filter box upper cover 21.

[0106] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, one end of the housing 1 provided with the water outlet 12 has an inwardly extending extension member 14, and the extension member 14 has a connecting channel 141, and the connecting channel 141 is connected with the water outlet channel 221 and the water outlet 12. It can be understood that the connecting channel 141 allows the liquid after filtering to flow from the water outlet channel 221 to the water outlet 12, and can separate the space from the water outlet channel 221 to the water outlet 12 and the space from the water inlet 11 to the water inlet channel 212, so as to avoid the liquid after filtering from mixing with the liquid before filtering, and ensure the filtering effect of the filter element 10.

[0107] Furthermore, a one-way valve 5 is provided in the connecting channel 141 to only allow the liquid to flow from the water outlet channel 221 to the water outlet 12, to avoid the liquid from flowing back or flowing into the filter element 10 from the water outlet 12, to avoid affecting the outflow of the filtered liquid, and to ensure the filtering effect of the filter element 10. It should be noted that the one-way valve 5 is a device that cannot pass water in the reverse direction and requires a certain water inlet pressure to open in the forward direction. Generally, the forward water inlet pressure is set to be greater than the pressure of the water pressure acting on the water inlet of the one-way valve 5 after the filter element 10 is filled with water + 0.05Mpa (relative pressure). The former is to overcome the pressure of the weight of the water stored in the filter element 10 acting on the one-way valve 5, and 0.05Mpa is to overcome the atmospheric pressure. Among them, there is a fourth sealing ring 26 between the outer peripheral wall of the one-way valve 5 and the inner peripheral wall of the connecting channel 141, so as to prevent the liquid from flowing between the outer peripheral wall of the one-way valve 5 and the inner peripheral wall of the connecting channel 141, thereby improving the sealing performance.

[0108] The flow path of water in the filter element 10 is: the water flows into the filter element 10 from the water inlet 11 and flows to the water inlet channel 212. After being filtered by the filter element 10, it flows to the water outlet channel 221, and then flows to the connecting channel 141. After being controlled by the one-way valve 5, if there is sufficient water inlet pressure, the one-way valve 5 opens, and the water flows through the one-way valve 5 to the water outlet 12 and out of the filter element 10.

[0109] In addition, there is a fifth sealing ring 27 between the outer peripheral wall of the filter element 10 and the inner peripheral wall of the socket 20, thereby preventing liquid from flowing out from between the outer peripheral wall of the filter element 10 and the inner peripheral wall of the socket 20, wherein one end of the shell 1 extends in the direction close to the socket 20, and there is a sixth sealing ring 28 between the outer peripheral wall of the shell 1 near the water outlet 12 and the inner peripheral wall of the socket 20, thereby preventing liquid from flowing through the gap between the outer peripheral wall of the shell 1 near the water outlet 12 and the inner peripheral wall of the socket 20, thereby preventing liquid from flowing from the inlet 204 to the outlet 205 without being filtered by the filter element 10, thereby improving the filtering effect.

[0110] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, the end of the filter box upper cover 21 facing the water inlet 11 has a protrusion 214, the communication port 213 penetrates the protrusion 214, and one end of the extension member 14 is sleeved outside the protrusion 214. Through the cooperation of the extension member 14 and the protrusion 214, the filter box upper cover 21 and the housing 1 are reliably connected, the fixing effect of the filter box 2 is improved, and the filter material leakage is further prevented. At the same time, the axis of the filter box 2 and the housing 1 can be overlapped, and the water outlet 12 can be ensured to be opposite to the water outlet channel 221, so as to avoid mixing of the liquid in the water outlet channel 221 and the water inlet channel 212, thereby ensuring the filtering effect of the filter element 10 and improving the user experience.

[0111] In some embodiments of the present invention, Figure 4 and Figure 5 As shown, a second sealing ring 24 is provided between the inner peripheral wall of the extension member 14 and the outer peripheral wall of the protrusion 214. It is understandable that the second sealing ring 24 can be interference fit with the inner peripheral wall of the extension member 14 and the outer peripheral wall of the protrusion 214, and can separate the space from the water outlet channel 221 to the water outlet 12 from the space from the water inlet 11 to the water inlet channel 212, so as to avoid the liquid after filtration from mixing with the liquid before filtration, and ensure the filtering effect of the filter element 10.

[0112] In some embodiments of the present invention, Figure 8 and Fig. 9As shown, a valve assembly 30 is provided in the socket 20, and the valve assembly 30 has a conducting state and a shutoff state, wherein, after the filter element 10 and the socket 20 are assembled, the valve assembly 30 is in the conducting state, the water inlet 11 is connected with the inlet 204, and the water outlet 12 is connected with the outlet 205. With this arrangement, when the valve assembly 30 is in the conducting state, it can be avoided that the water flows into the socket 20 through the inlet 204 and then directly flows out of the socket 20 through the outlet 205, thereby ensuring that the water flowing out of the outlet 205 of the socket 20 is the water flowing through the filter element 10, thereby ensuring the filtering effect of the filter element assembly 100 on the water flow.

[0113] After the filter element 10 is separated from the socket 20, the valve assembly 30 is in a cut-off state, the water inlet 11 is isolated from the inlet 204, and the water outlet 12 is isolated from the outlet 205. Water can flow into the socket through the inlet 204 and then directly flow out through the outlet 205, so that when the filter element 10 is removed, the normal flow of water in the waterway connected to the socket 20 can be guaranteed.

[0114] It is understandable that if the filter element 10 needs to be replaced, the water valve in the home needs to be closed first. However, by controlling the valve assembly 30 in the socket 20 to be in a cut-off state, the water inlet 11 and the inlet 204 as well as the water outlet 12 and the outlet 205 can be controlled to be isolated, so that the water flow in the filter element assembly 100 is blocked, preventing water leakage when the filter element 10 is removed, thereby achieving the replacement of the filter element 10 without closing the water valve, with simple steps and convenient operation.

[0115] In some embodiments of the present invention, Figure 8 and Fig. 9 As shown, when the filter element 10 is assembled with the socket 20, the filter element 10 contacts and cooperates with the valve assembly 30, so that the valve assembly 30 switches from the cut-off state to the on state. It is understandable that after the filter element 10 is installed, the filter element 10 contacts and cooperates with the valve assembly 30, so that the valve assembly 30 switches from the cut-off state to the on state, so that water can flow to the filter element 10 for filtration. When the filter element 10 is disassembled, the filter element 10 is spaced apart from the valve assembly 30, so that the valve assembly 30 switches from the on state to the cut-off state, thereby preventing water leakage when the filter element 10 is disassembled. In this way, the valve assembly 30 switches between the on and off states automatically, without the need for manual operation, and simplifies the installation steps.

[0116] In some embodiments of the present invention, Figure 8 and Fig. 9 As shown, in the conducting state, the inlet 204 is separated from the outlet 205, thereby preventing the water in the inlet 204 and the outlet 205 from mixing and reducing the filtering effect. In the cut-off state, the inlet 204 is connected to the outlet 205, thereby preventing the water from the inlet 204 from flowing to the filter element 10, so that the water can flow directly from the inlet 204 to the outlet 205, preventing excessive water pressure from causing structural damage.

[0117] Furthermore, a first installation cavity 201, a second installation cavity 202 and a connecting cavity 203 are formed in the connecting seat 20, and the first installation cavity 201 and the second installation cavity 202 are separated from each other. The valve assembly 30 includes a first stop valve 301 and a second stop valve 302. The first stop valve 301 is provided in the first installation cavity 201, and the first stop valve 301 includes a first valve seat 3011 and a first valve core 3012. A first connecting channel 303 connected to the inlet 204 is formed in the first valve seat 3011, and the first valve core 3012 is movably arranged in the first connecting channel 303 between a first position and a second position. The first valve core 3012 of the first stop valve 301 can be used to control the connection and isolation between the inlet 204 and the water inlet 11. When the first valve core 3012 is in the first position, the water path between the inlet 204 and the water inlet 11 is connected, and water can enter the first communication channel 303 through the inlet 204, flow through the first communication channel 303, and then flow into the filter element 10 through the water inlet 11. When the first valve core 3012 is in the second position, the water path between the inlet 204 and the water inlet 11 is blocked, and the inlet 204 is connected to the communication chamber 203.

[0118] A second stop valve 302 is provided in the second installation cavity 202. The second stop valve 302 includes a second valve seat 3021 and a second valve core 3022. A second communication channel 304 communicating with the outlet 205 is formed in the second valve seat 3021. The second valve core 3022 is movably provided in the second communication channel 304 between the third position and the fourth position. The second valve core 3022 of the second stop valve 302 can be used to control the communication and isolation between the outlet 205 and the water outlet 12. When the second valve core 3022 is in the third position, the water path between the outlet 205 and the water outlet 12 is connected, and the water flow in the filter element 10 can flow into the second communication channel 304 through the water outlet 12, and after flowing through the second communication channel 304, it flows out of the socket 20 through the outlet 205. When the second valve core 3022 is in the fourth position, the water path between the outlet 205 and the water outlet 12 is isolated, and the inlet 204 is connected with the communication cavity 203.

[0119] When the valve assembly 30 is in the on state, the first valve core 3012 is in the first position and the second valve core 3022 is in the third position, the first connecting channel 303 connects the inlet 204 with the water inlet 11, the second connecting channel 304 connects the outlet 205 with the water outlet 12, and the first connecting channel 303 and the second connecting channel 304 are both separated from the connecting cavity 203, so that water can enter the water inlet 11 from the inlet 204 through the first connecting channel 303 and enter the filter element 10, and flow from the water outlet 12 to the second connecting channel 304, and then flow out from the outlet 205, thereby achieving water filtration.

[0120] When the valve assembly 30 is in the cut-off state, the first valve core 3012 is in the second position and the second valve core 3022 is in the fourth position, the first communication channel 303 is isolated from the water inlet 11, the second communication channel 304 is isolated from the water outlet 12, and the first communication channel 303 and the second communication channel 304 are connected through the communication cavity 203. Thus, water can directly flow from the inlet 204 through the first communication channel 303 and the second communication channel 304 to the outlet 205, preventing excessive water pressure from causing structural damage.

[0121] Further, the first stop valve 301 may include a first spring 305, one end of the first spring 305 is connected to the first valve core 3012, and the other end of the first spring 305 is connected to the first valve seat 3011. After the filter element is separated from the socket, the first spring 305 can switch the first valve core 3012 from the first position to the second position by exerting an elastic force on the first valve core 3012; after the filter element is assembled with the socket, the filter element contacts and cooperates with the first valve core 3012, so that the first valve core 3012 overcomes the elastic force of the first spring 305 and switches from the second position to the first position.

[0122] The second stop valve 302 may include a second spring 306, one end of which is connected to the second valve core 3022, and the other end of which is connected to the second valve seat 3021. After the filter element is separated from the socket, the second spring 306 can switch the second valve core 3022 from the third position to the fourth position by acting on the second valve core 3022 with elastic force; after the filter element is assembled with the socket, the filter element contacts and cooperates with the second valve core 3022, so that the second valve core 3022 overcomes the elastic force of the second spring 306 and switches from the fourth position to the third position.

[0123] The following describes a filter element assembly 100 according to a specific embodiment of the present invention. It is worth noting that the following description is merely exemplary and is intended to be used to explain the present invention, but is not to be construed as limiting the present invention.

[0124] Embodiment 1

[0125] like Figure 2 , Figure 4 and Figure 5 As shown, the filter element assembly 100 according to the embodiment of the present invention includes a socket 20 , a filter element 10 and a push rod 40 .

[0126] like Figure 2 , Figure 4 and Figure 5As shown, the socket 20 is provided with an inlet 204 and an outlet 205, the filter element 10 includes a shell 1, a filter box 2, an elastic member 4 and a water-stop pad 3, the filter box 2, the elastic member 4 and the water-stop pad 3 are all arranged in the shell 1, the socket 20 and the shell 1 are rotatably connected, the inner circumferential wall of the socket 20 is provided with a slide rail 206 protruding from the inner circumferential wall of the socket 20, the slide rail 206 is spaced apart from the inner bottom wall of the socket 20 to define a accommodating space, the outer circumferential wall of the shell 1 is provided with a slide rib 18 protruding from the outer circumferential wall of the shell 1, the slide rib 18 is suitable for being located in the accommodating space, along the rotation direction of the socket 20 when it is installed, the surface of the slide rib 18 facing away from the inner bottom wall of the socket 20 is inclined toward the direction away from the inner bottom wall of the socket 20.

[0127] like Figure 2 , Figure 4 and Figure 5 As shown, one end of the housing 1 has a water inlet 11 and a water outlet 12 and is suitable for detachable connection with the socket 20 so that the inlet 204 is connected to the water inlet 11 and the outlet 205 is connected to the water outlet 12. The water inlet 11 is a plurality of water inlets spaced apart along the circumferential direction of the housing 1. The water outlet 12 is arranged at the center of the housing 1. The outer peripheral wall of the filter box 2 and the housing 1 jointly define a water inlet channel 212. The filter box 2 defines a water outlet channel 221. The water inlet channel 212 is connected to the water inlet 11, and the water outlet channel 221 is connected to the water outlet 12. The end of the housing 1 provided with the water outlet 12 has an inwardly extending extension 14, and the extension 14 has a connecting channel 141 therein. The connecting channel 141 is connected to the connecting port 213 and the water outlet 12.

[0128] like Figure 2 , Figure 4 and Figure 5As shown, the filter box 2 includes: a filter box upper cover 21 and a filter box lower shell 22, the elastic member 4 is located between the water stop pad 3 and the filter box upper cover 21, the side of the filter box upper cover 21 facing away from the water inlet 11 has an annular filter screen 211 extending along the circumferential direction of the filter box upper cover 21, the outer peripheral wall of the filter box upper cover 21 and the shell 1 jointly define a water inlet channel 212, and the filter box upper cover 21 has a connecting port 213 for connecting the water outlet channel 221 and the water outlet 12; the end of the filter box lower shell 22 close to the water inlet 11 extends into the filter box upper cover 21, the filter box lower shell 22 is used to accommodate filter material, the filter box lower shell 22 defines a water outlet channel 221, and the filter box lower shell 22 has a water opening 222 on the peripheral wall for connecting the water inlet channel 212 and the water outlet channel 221. The outer peripheral wall of the filter box lower shell 22 is provided with a limiting rib 223 extending in the circumferential direction of the filter box lower shell 22, and the end of the filter box upper cover 21 facing away from the water inlet 11 is supported on the limiting rib 223. The end of the filter box upper cover 21 facing the water inlet 11 is provided with a protrusion 214, the communication port 213 passes through the protrusion 214, and one end of the extension member 14 is sleeved outside the protrusion 214. A second sealing ring 24 is provided between the inner peripheral wall of the extension member 14 and the outer peripheral wall of the protrusion 214.

[0129] like Figure 2 , Figure 4 and Figure 5 As shown, the water stop pad 3 is located between the filter box 2 and the water inlet 11, and the water stop pad 3 is annular and extends along the circumferential direction of the housing 1. The elastic member 4 is located between the filter box 2 and the water stop pad 3 to drive the water stop pad 3 to block the water inlet 11, and the elastic member 4 is a spring. The housing 1 also has a through hole 15, and there are multiple spaced-apart push rods 40. The through holes 15 are multiple and correspond to the multiple push rods 40 one by one. The push rods 40 are inserted into the through holes 15, and one end of the push rod 40 is fixedly connected to the water stop pad 3, and the other end of the push rod 40 is suitable for sliding against the socket 20. The cross-sectional shape and size of the through hole 15 are the same as the cross-sectional shape and size of the push rod 40. When the socket 20 is installed with the filter element 10, the socket 20 moves relative to the filter element 10 toward the filter element 10, and the push rod 40 drives the water stop pad 3 to be spaced apart from the water inlet 11 to open the water inlet 11.

[0130] A positioning protrusion 215 is provided on the side of the filter box 2 facing the water-stop pad 3. The positioning protrusion 215 is a plurality of protrusions 215 arranged at intervals along the circumferential direction of the filter box 2 or the positioning protrusion 215 extends in a ring shape along the circumferential direction of the filter box 2. The end of the elastic member 4 away from the water-stop pad 3 is located in the space defined by the positioning protrusion 215.

[0131] The socket 20 is provided with a valve assembly 30, which has a conducting state and a shutoff state; wherein, after the filter element 10 and the socket 20 are assembled, the valve assembly 30 is in the conducting state, the water inlet 11 is connected with the inlet 204, and the water outlet 12 is connected with the outlet 205; after the filter element 10 and the socket 20 are separated, the valve assembly 30 is in the shutoff state, the water inlet 11 is isolated from the inlet 204, and the water outlet 12 is isolated from the outlet 205. When the filter element 10 and the socket 20 are assembled, the filter element 10 and the valve assembly 30 are contacted and matched, so that the valve assembly 30 is switched from the shutoff state to the conducting state. In the conducting state, the inlet 204 is isolated from the outlet 205; in the shutoff state, the inlet 204 is connected with the outlet 205.

[0132] Embodiment 2

[0133] like Figure 1 As shown, the structure of this embodiment is roughly the same as that of embodiment one, wherein the same components are marked with the same figure, and the only difference is that one end of the push rod 40 is fixedly connected to the socket 20, and the other end of the push rod 40 is suitable for sliding against the water stop pad 3, and the through hole 15 extends along the circumferential direction of the shell 1.

[0134] The following describes a water heater according to an embodiment of the present invention.

[0135] The water heater according to the embodiment of the present invention includes the above-mentioned filter element assembly 100. It is understandable that the filter element assembly 100 can be placed inside the water heater or outside the water heater, the filter element 10 is installed on the socket 20, and the tap water flows into the water inlet channel 212 through the inlet 204 and the water inlet 11, and after entering the filter box 2 and being filtered, it flows from the water outlet channel 221 through the connecting channel 141 to the water outlet 12, and finally flows out of the filter element 10 from the outlet 205 and enters the water heater for heating treatment.

[0136] According to the water heater of the embodiment of the present invention, by setting the above-mentioned filter element assembly 100, a filter element 10 is set, and the filter element 10 includes a shell 1, a filter material box 2, an elastic member 4 and a water stop pad 3. The shell 1 is provided with a water inlet 11 and a water outlet 12. The water stop pad 3 is located between the filter material box 2 and the water inlet 11. A through hole 15 is set on the shell 1, and the socket 20 has an inlet 204 and an outlet 205. The socket 20 is detachably connected to the shell 1 so that the inlet 204 is connected to the water inlet 11, and the outlet 205 is connected to the water outlet 12. The push rod 40 is inserted into the through hole 15, and one end of the push rod 40 is connected to the socket 20 and one of the water stop pad 3, and the other end is connected to the socket 2 0 and the other stop in the water-stop pad 3. After the connecting seat 20 and the filter element 10 are disassembled, the water-stop pad 3 can block the water inlet 11 under the action of the elastic member 4, so as to prevent the water in the filter element 10 from flowing out from the water inlet 11, thereby improving the user's experience, preventing residual water from wetting the user's clothes and the ground, and reducing safety hazards and the user's labor. When the connecting seat 20 and the filter element 10 are installed, the connecting seat 20 moves toward the filter element 10 relative to the filter element 10, and the push rod 40 drives the water-stop pad 3 to be separated from the water inlet 11 to open the water inlet 11, thereby realizing the connection between the water inlet 11 and the inlet 204. The water entering the inlet 204 can flow to the filter element 10 through the water inlet 11 for filtration.

[0137] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0138] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A filter element assembly, characterized in that: include: A socket, wherein the socket is provided with an inlet and an outlet; A filter element, the filter element comprising a housing, a filter material box, an elastic member and a water-stopping pad, the filter material box, the elastic member and the water-stopping pad are all arranged in the housing, one end of the housing has a water inlet and a water outlet and is suitable for being detachably connected with the socket so that the inlet is connected to the water inlet and the outlet is connected to the water outlet, the water-stopping pad is located between the filter material box and the water inlet, the elastic member is located between the filter material box and the water-stopping pad to drive the water-stopping pad to block the water inlet, and the housing also has a through hole; A push rod, the push rod is inserted into the through hole, one end of the push rod is connected to one of the socket and the water stop pad, and the other end is suitable for abutting against the other of the socket and the water stop pad. When the receiving seat and the filter element are installed, the receiving seat moves relative to the filter element toward the filter element, and the push rod drives the water stop pad to be spaced apart from the water inlet to open the water inlet.

2. The filter element assembly according to claim 1, characterized in that: The receiving seat and the shell are rotatably connected.

3. The filter element assembly according to claim 2, characterized in that: The inner circumferential wall of the socket is provided with a slide rail protruding from the inner circumferential wall of the socket, the slide rail is spaced apart from the inner bottom wall of the socket to define a accommodating space, the outer circumferential wall of the shell is provided with a slide rib protruding from the outer circumferential wall of the shell, the slide rib is suitable for being located in the accommodating space, along the rotation direction of the socket when installed, the surface of the slide rib facing away from the inner bottom wall of the socket is inclined toward a direction away from the inner bottom wall of the socket.

4. The filter element assembly according to claim 2, characterized in that: One end of the push rod is fixedly connected to the water stop pad, and the other end of the push rod is suitable for sliding against the receiving seat. The cross-sectional shape and size of the through hole are the same as those of the push rod.

5. The filter element assembly according to claim 2, characterized in that: One end of the push rod is fixedly connected to the seat, and the other end of the push rod is suitable for sliding against the water-stop pad, and the through hole extends along the circumferential direction of the shell.

6. The filter element assembly according to claim 1, characterized in that: The push rods are multiple and spaced apart, and the through holes are multiple and correspond one to one with the multiple push rods.

7. The filter element assembly according to claim 1, characterized in that: A positioning protrusion is provided on the side of the filter box facing the water-stop pad. The positioning protrusion is a plurality of protrusions arranged at intervals along the circumferential direction of the filter box or the positioning protrusion extends in a ring shape along the circumferential direction of the filter box. The end of the elastic member away from the water-stop pad is located in the space defined by the positioning protrusion.

8. The filter element assembly according to claim 1, characterized in that: The elastic member is a spring.

9. The filter element assembly according to claim 1, characterized in that: The water inlets are multiple and spaced apart along the circumferential direction of the shell, the water outlet is arranged at the center of the shell, and the water stop pad is annular and extends along the circumferential direction of the shell.

10. The filter element assembly according to claim 1, characterized in that: The inner peripheral wall of the shell at one end away from the water inlet is provided with fixing ribs, and the fixing ribs are multiple and spaced apart along the circumferential direction of the shell, and the filter material box is located in the space defined by the multiple fixing ribs.

11. The filter element assembly according to claim 1, characterized in that: The outer peripheral wall of the filter box and the shell together define the water inlet channel, and the filter box defines a water outlet channel. The water inlet channel is communicated with the water inlet, and the water outlet channel is communicated with the water outlet.

12. The filter element assembly according to claim 11, characterized in that: The filter material box comprises: The filter box upper cover, the elastic member is located between the water stop pad and the filter box upper cover, the filter box upper cover has an annular filter screen extending along the circumferential direction of the filter box upper cover on a side away from the water inlet, the outer peripheral wall of the filter box upper cover and the shell together define the water inlet channel, and the filter box upper cover has a connecting port for connecting the water outlet channel and the water outlet; The filter box lower shell, one end of the filter box lower shell close to the water inlet extends into the filter box upper cover, the filter box lower shell is used to accommodate filter material, a water outlet channel is defined in the filter box lower shell, and a water opening for connecting the water inlet channel and the water outlet channel is provided on the peripheral wall of the filter box lower shell.

13. The filter element assembly according to claim 12, characterized in that: The outer peripheral wall of the filter box lower shell is provided with limiting ribs extending along the circumferential direction of the filter box lower shell, and the end of the filter box upper cover facing away from the water inlet is supported on the limiting ribs.

14. The filter element assembly according to claim 12, characterized in that: One end of the shell body provided with the water outlet has an inwardly extending extension piece, and the extension piece has a connecting channel therein, and the connecting channel is connected with the communicating port and the water outlet.

15. The filter element assembly according to claim 14, characterized in that: One end of the filter box upper cover facing the water inlet is provided with a protrusion, the communication port passes through the protrusion, and one end of the extension piece is sleeved outside the protrusion.

16. The filter element assembly according to claim 15, characterized in that: A second sealing ring is provided between the inner peripheral wall of the extension piece and the outer peripheral wall of the protrusion.

17. The filter element assembly according to claim 1, characterized in that: A valve assembly is provided in the socket, and the valve assembly has an on state and a off state; Wherein, after the filter element is assembled with the socket, the valve assembly is in the conducting state, the water inlet is connected with the inlet, and the water outlet is connected with the outlet; After the filter element is separated from the socket, the valve assembly is in the cut-off state, the water inlet is isolated from the inlet, and the water outlet is isolated from the outlet.

18. The filter element assembly according to claim 17, characterized in that: When the filter element is assembled with the socket, the filter element contacts and cooperates with the valve assembly, so that the valve assembly switches from the cut-off state to the conduction state.

19. The filter element assembly according to claim 18, characterized in that: In the on state, the inlet is isolated from the outlet; in the off state, the inlet is connected to the outlet.

20. A water heater, characterized in that: Comprising a filter element assembly according to any one of claims 1-19.

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