Composite filter element water stop structure

Abstract

The invention discloses a composite filter element water stop structure which comprises a water passing connector and a filter bottle which are matched with each other, the water passing connector is fixedly connected with a filter element seat, the filter bottle is detachably connected with the filter element seat, and the composite filter element water stop structure further comprises a first rotating part arranged between the filter element seat and the water passing connector. The first rotating piece and the water passing connector are in end face sealing fit through a first sealing ring, and the first rotating piece can rotate relative to the water passing connector so that a water passing opening of the first rotating piece can be communicated with or staggered from a water passing opening of the water passing connector. The water purifier further comprises a second rotating part, the end face sealing fit between the second rotating part and the filter bottle is realized through a second sealing ring, and the filter bottle can rotate relative to the second rotating part, so that the water passing opening of the second rotating part is communicated with or staggered from the water passing opening of the filter bottle; under the condition that the occupied space is small, it can be guaranteed that the overall structure has an excellent water stop structure.

Description

Technical Field

[0001] The invention relates to a composite filter element water-stopping structure. Background Art

[0002] When replacing the filter element of a water purifier, the residual water in the waterway and filter element will leak out, affecting the product experience and causing misunderstanding that the machine is leaking. Therefore, the filter elements on the market and the water purifier filter element connectors are equipped with water-stop structures, but the effects vary. Water-stop structures with good effects take up large spaces, while those with small sizes have average water-stop effects. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a composite filter element water-stopping structure.

[0004] The present invention is achieved through the following technical solutions:

[0005] A composite filter element water-stopping structure comprises a matching water-passing joint and a filter bottle, wherein the water-passing joint is fixedly connected to the filter element seat, and the filter bottle is detachably connected to the filter element seat, and further comprises a first rotating member disposed between the filter element seat and the water-passing joint, wherein the first rotating member and the water-passing joint are end-face sealed via a first sealing ring, and the first rotating member can rotate relative to the water-passing joint to achieve communication or stagger between the water-passing port of the first rotating member and the water-passing port of the water-passing joint; further comprises a second rotating member, wherein the second rotating member and the filter bottle are end-face sealed via a second sealing ring, and the filter bottle can rotate relative to the second rotating member to achieve communication or stagger between the water-passing port of the second rotating member and the water-passing port of the filter bottle; the first rotating member and the second rotating member can rotate synchronously, the water-passing port of the first rotating member is connected to the water-passing port of the second rotating member, and the rotation of the filter bottle relative to the water-passing joint can separate the second rotating member from the first rotating member.

[0006] In an embodiment of the present invention, it also includes a fixing seat that can be fixedly connected to the filter bottle, the second rotating member is connected to the filter bottle via the fixing seat, the second rotating member can move axially with the filter bottle synchronously, and the filter bottle can drive the second rotating member to rotate around the axis.

[0007] In an embodiment of the present invention, an opening capable of forming a water outlet is provided on the second rotating member, and a connecting pipe is provided on the first rotating member. The water outlet of the first rotating member is formed in the connecting pipe, and the connecting pipe is inserted into the opening. The first rotating member can rotate synchronously with the second rotating member through the cooperation of the connecting pipe and the opening.

[0008] In the embodiment of the present invention, at least two lugs are arranged on the periphery of the filter bottle, and a slide groove matched with the lugs is arranged on the inner periphery of the filter element seat. The rotation of the filter bottle relative to the filter element seat or the water inlet joint enables the lug to move in the slide groove.

[0009] In an embodiment of the present invention, a first groove is arranged on the water joint toward the first rotating member, and the first sealing ring can be arranged in the first groove; a second groove is arranged on the filter bottle toward the second rotating member, and the second sealing ring can be arranged in the second groove.

[0010] In an embodiment of the present invention, the water outlet of the filter bottle includes a pure water outlet, and the pure water outlet can be coaxially arranged with the axis of rotation of the filter element, and the other water outlets of the filter bottle are distributed on the peripheral side of the pure water outlet; the water outlet of the first rotating part includes a first pure water water outlet, and the other water outlets of the first rotating part are distributed on the peripheral side of the first pure water outlet; the water outlet of the second rotating part includes a second pure water water outlet, and the other water outlets of the second rotating part are distributed on the peripheral side of the second pure water outlet; the water outlet of the water joint includes a pure water outlet, and the other water outlets of the water joint are distributed on the peripheral side of the pure water outlet; the pure water outlet is connected with the first pure water water outlet, the second pure water water outlet, and the pure water outlet, and are coaxially arranged.

[0011] In the embodiment of the present invention, the filter bottle is provided with 3 or 4 water outlets, and the number of water outlets of the first rotating member, the second rotating member and the water outlet joint matches the number of water outlets of the filter bottle.

[0012] In an embodiment of the present invention, a first check valve is provided at the first pure water outlet, and the first check valve can be in a flow-open state when water flows out of the pure water outlet; a second check valve is provided at the pure water outlet, and the second check valve can be in a flow-open state after the filter element and the water pass joint are installed.

[0013] In an embodiment of the present invention, a push rod is provided at the first pure water outlet. After the filter element is installed with the water outlet joint, the push rod can push open the second check valve to put it in a flow-open state. After the filter element is detached from the water outlet joint, the push rod can detach from the second check valve, and the second check valve is in a flow-closed state.

[0014] In an embodiment of the present invention, second protrusions are arranged at intervals on the outer periphery of the second rotating member, a second protrusion is arranged on the filter element, a second slide groove is formed between two adjacent second protrusions, the second protrusion can move in the second slide groove, and when the second protrusion abuts and cooperates with the second protrusion, the filter element can drive the second rotating member to rotate synchronously; and / or: first protrusions are arranged at intervals on the outer periphery of the first rotating member, a first protrusion is arranged on the water transfer joint, a first slide groove is formed between two adjacent first protrusions, and the first protrusion can move in the first slide groove.

[0015] The composite filter element water-stopping structure of the present invention has the following beneficial effects: the overall structure has a good water-stopping effect, the overall occupied space is small, and the saved space can be used to increase the amount of filter material used, thereby increasing the service life of the overall filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a cross-sectional view of the present invention.

[0018] Figure 2 It is a schematic diagram of the cooperation of the first rotating member in the present invention.

[0019] Figure 3 It is a schematic diagram of the cooperation of the second rotating member in the present invention. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] 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" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0022] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0025] Referring to the drawings of the specification, a composite filter element water-stopping structure includes a matching water-passing joint 10 and a filter bottle 20, wherein the water-passing joint is fixedly connected to the filter element seat 30, and the filter bottle is detachably connected to the filter element seat. The filter bottle is installed and removed from the water-passing joint by rotating. The structure also includes a first rotating member 40 disposed between the filter element seat and the water-passing joint, wherein the first rotating member and the water-passing joint are end-face sealed via a first sealing ring 11, and the first rotating member can be rotated relative to the water-passing joint to achieve communication or stagger between the water-passing port of the first rotating member and the water-passing port of the water-passing joint; and a second rotating member 50 is also included, wherein the second rotating member and the filter bottle are end-face sealed via a second sealing ring 21, and the filter bottle can be rotated relative to the second rotating member to achieve communication or stagger between the water-passing port of the second rotating member and the water-passing port of the filter bottle. When the filter bottle is installed, Each water outlet (except the middle one) is interconnected. When the filter bottle needs to be disassembled, each water outlet (except the middle one) is staggered, and water no longer flows. The first rotating member and the second rotating member can rotate synchronously, and the first rotating member and the second rotating member can be separated when the filter element is disassembled. The water outlet of the first rotating member is connected to the water outlet of the second rotating member. In a preferred embodiment, the water outlets of these two components can remain connected regardless of whether the filter element is disassembled or installed. The rotation of the filter bottle relative to the water outlet joint can separate the second rotating member from the first rotating member, that is, the filter bottle and the water outlet joint are separated, completing the disassembly of the filter bottle. The second rotating member and the filter bottle can rotate axially relative to each other, but can move axially synchronously. The same is true for the water outlet joint and the first rotating member. They can rotate axially relative to each other, but can move axially synchronously.

[0026] Preferably, it also includes a fixing seat 60 that can be fixedly connected to the filter bottle, the second rotating member is connected to the filter bottle via the fixing seat, the second rotating member can perform axial movement of the filter bottle synchronously with the filter bottle, and the filter bottle can drive the second rotating member to rotate around the axial direction, that is, the second rotating member is arranged in the space formed by the fixing seat and the filter bottle, and the second rotating member and the filter bottle can only rotate relative to each other; similarly, the first rotating member is arranged in the space formed by the water flow joint and the filter element seat, and the first rotating member and the water flow joint can only rotate relative to each other.

[0027] Refer to the attached pictures Figure 2 , Figure 3 The second rotating member is provided with an opening 51 which can form its water outlet, and the first rotating member is provided with a connecting pipe 41, in which the water outlet of the first rotating member is formed, and the connecting pipe is inserted into the opening. The first rotating member can rotate synchronously with the second rotating member through the cooperation of the connecting pipe and the opening.

[0028] Furthermore, at least two lugs 22 are provided on the peripheral side of the filter bottle, and a slide groove 31 adapted to the lug is provided on the inner periphery of the filter element seat. The rotation of the filter bottle relative to the filter element seat or the water inlet joint enables the lug to move in the slide groove, thereby completing the installation and disassembly movement of the filter bottle relative to the valve core seat, and also realizing the limiting of the rotation of the filter bottle, which is similar to the prior art and will not be elaborated again.

[0029] In order to achieve a better sealing effect, the water joint is provided with a first groove 12 toward the first rotating part, and the first sealing ring can be arranged in the first groove; the filter bottle is provided with a second groove 23 toward the second rotating part, and the second sealing ring can be arranged in the second groove. When the water outlets of each component are staggered, under the action of the two sealing rings, the water flow between the components can be cut off and no longer circulate.

[0030] In a preferred embodiment, the water inlet of the filter bottle includes a pure water outlet 24, which can be coaxially arranged with the axis of rotation of the filter element, and the other water inlets of the filter bottle are distributed on the peripheral side of the pure water outlet; the water inlet of the first rotating part includes a first pure water inlet 42, and the other water inlets of the first rotating part are distributed on the peripheral side of the first pure water outlet; the water inlet of the second rotating part includes a second pure water inlet 52, and the other water inlets of the second rotating part are distributed on the peripheral side of the second pure water outlet; the water inlet of the water joint includes a pure water outlet 13, and the other water inlets of the water joint are distributed on the peripheral side of the pure water outlet; the pure water outlet is connected with the first pure water inlet, the second pure water inlet, and the pure water outlet, and are coaxially arranged.

[0031] Preferably, the filter bottle is provided with 3 or 4 water inlets, and the number of water inlets of the first rotating member, the second rotating member, and the water-passing joint matches the number of water inlets of the filter bottle. The embodiment drawn in the figure has 4 water inlets, which can be configured as two water inlets and two water outlets, or three water inlets, which can be configured as one for raw water inlet, one for waste water outlet, and one for pure water outlet.

[0032] Furthermore, the first pure water outlet is provided with a first check valve 43, which can be in a circulation open state when water flows out of the pure water outlet; the pure water outlet is provided with a second check valve 25, which can be in a circulation open state after the filter element and the water connection are installed, so that the water connection located in the middle (will not be staggered) will not leak. The first pure water outlet is provided with a push rod 44, which can push open the second check valve to put it in a circulation open state after the filter element and the water connection are installed, and the push rod can be separated from the second check valve after the filter element is detached from the water connection, and the second check valve is in a circulation closed state.

[0033] In one use, second protrusions 53 are arranged at intervals on the outer periphery of the second rotating member, and the filter element is provided with second protrusions 26. A second slide groove 54 is formed between two adjacent second protrusions. The second protrusion can move in the second slide groove. At this time, the filter bottle can rotate relative to the second rotating member, and the second rotating member does not move. In this way, the water outlet of the filter bottle can be staggered with the water outlet of the second rotating member, and the water flow in the filter bottle will not flow out. When the second protrusion is in abutment with the second protrusion, the filter element can drive the second rotating member to rotate synchronously, so that the filter bottle can drive the first rotating member. , the second rotating member rotates, while the water-passing joint does not move, so that the water outlet of the water-passing joint is staggered with the water outlet of the first rotating member, and the water of the water-passing joint does not flow out; and / or: the first rotating member is provided with first protrusions 45 at intervals on the outer periphery, the water-passing joint is provided with first protrusions 14, and a first slide groove 46 is formed between two adjacent first protrusions, and the first protrusion can move in the first slide groove, so that the rotation angle of the second rotating member can be limited, and the rotation angle can ensure the staggering of some water outlets, and prevent the angle from rotating too much, so that the water outlets become connected again.

[0034] More specifically, the present invention is as follows: the second rotating member is connected to the filter bottle through the second sealing ring, and the outer side of the second sealing ring has a semicircular arc structure. When the filter element is disassembled, the second rotating member and the filter bottle rotate at a certain angle, and the outer semicircular arc sealing structure can close the outer waterway (which can have three places), and the middle waterway (the middle one is the pure water waterway) is stopped by the second check valve, and the water inside the filter element will not flow out; the first rotating member is also connected to the water flow joint through the first sealing ring, and the outer side of the first sealing ring has a semicircular arc structure. When the filter element is disassembled, the first rotating member and the water flow joint rotate at a certain angle, and the outer semicircular arc sealing structure can close the three outer waterways, and the middle pure water waterway is stopped by the first check valve, and the water inside the machine will not flow out. The passage direction of the first check valve is the water flow direction, and the passage direction of the second check valve is against the water flow direction.

[0035] The above description shows and describes the preferred embodiments of the present invention. As mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A composite filter element water stop structure, comprising a matching water pass joint and a filter bottle, wherein the water pass joint is fixedly connected to the filter element seat, and the filter bottle is detachably connected to the filter element seat, characterized in that: It also includes a first rotating member placed between the filter element seat and the water flow joint, the first rotating member and the water flow joint are end-sealed via a first sealing ring, and the first rotating member can rotate relative to the water flow joint to achieve communication or staggered connection between the water flow outlet of the first rotating member and the water flow outlet of the water flow joint; it also includes a second rotating member, the second rotating member and the filter bottle are end-sealed via a second sealing ring, and the filter bottle can rotate relative to the second rotating member to achieve communication or staggered connection between the water flow outlet of the second rotating member and the water flow outlet of the filter bottle; the first rotating member and the second rotating member can rotate synchronously, the water flow outlet of the first rotating member is connected to the water flow outlet of the second rotating member, and the rotation of the filter bottle relative to the water flow joint can separate the second rotating member from the first rotating member.

2. A composite filter element water-stopping structure according to claim 1, characterized in that: It also includes a fixing seat that can be fixedly connected to the filter bottle, the second rotating member is connected to the filter bottle via the fixing seat, the second rotating member can move axially with the filter bottle synchronously, and the filter bottle can drive the second rotating member to rotate around the axial direction.

3. A composite filter element water-stopping structure according to claim 2, characterized in that: The second rotating member is provided with an opening that can form its water outlet, and the first rotating member is provided with a connecting pipe, in which the water outlet of the first rotating member is formed, and the connecting pipe is inserted into the opening. The first rotating member can rotate synchronously with the second rotating member through the cooperation of the connecting pipe and the opening.

4. A composite filter element water-stopping structure according to claim 3, characterized in that: At least two lugs are arranged on the periphery of the filter bottle, and a slide groove matched with the lugs is arranged on the inner periphery of the filter element seat. The rotation of the filter bottle relative to the filter element seat or the water inlet joint enables the lug to move in the slide groove.

5. A composite filter element water-stopping structure according to claim 4, characterized in that: The water-passing joint is provided with a first groove on the first rotating member, and the first sealing ring can be arranged in the first groove; the filter bottle is provided with a second groove on the second rotating member, and the second sealing ring can be arranged in the second groove.

6. A composite filter element water-stopping structure according to any one of claims 1 to 5, characterized in that: The water inlet of the filter bottle includes a pure water outlet, which can be coaxially arranged with the axis of rotation of the filter element, and the other water inlets of the filter bottle are distributed on the peripheral side of the pure water outlet; the water inlet of the first rotating part includes a first pure water inlet, and the other water inlets of the first rotating part are distributed on the peripheral side of the first pure water outlet; the water inlet of the second rotating part includes a second pure water inlet, and the other water inlets of the second rotating part are distributed on the peripheral side of the second pure water outlet; the water inlet of the water joint includes a pure water outlet, and the other water inlets of the water joint are distributed on the peripheral side of the pure water outlet; the pure water outlet is connected with the first pure water inlet, the second pure water inlet and the pure water outlet, and are coaxially arranged.

7. A composite filter element water-stopping structure according to claim 6, characterized in that: The filter bottle is provided with 3 or 4 water outlets, and the number of the water outlets of the first rotating member, the second rotating member and the water outlet joint matches the number of the water outlets of the filter bottle.

8. A composite filter element water-stopping structure according to claim 7, characterized in that: A first check valve is arranged at the first pure water outlet, and the first check valve can be in a flow-open state when water flows out of the pure water outlet; a second check valve is arranged at the pure water outlet, and the second check valve can be in a flow-open state after the filter element and the water pass joint are installed.

9. A composite filter element water-stopping structure according to claim 8, characterized in that: A push rod is provided at the first pure water outlet. After the filter element is installed with the water outlet joint, the push rod can push open the second check valve to put it in a flow-open state. After the filter element is detached from the water outlet joint, the push rod can detach from the second check valve, and the second check valve is in a flow-closed state.

10. A composite filter element water-stopping structure according to any one of claims 1-5, 7-9, characterized in that: The second rotating member is provided with second protrusions at intervals on the outer periphery, the filter element is provided with second protrusions, a second slide groove is formed between two adjacent second protrusions, the second protrusion can move in the second slide groove, and when the second protrusion abuts and cooperates with the second protrusion, the filter element can drive the second rotating member to rotate synchronously; and / or: the first rotating member is provided with first protrusions at intervals on the outer periphery, the water transfer joint is provided with first protrusions, a first slide groove is formed between two adjacent first protrusions, and the first protrusion can move in the first slide groove.

Images