Filter element assembly and water purifying device

Abstract

The utility model relates to the field of water purification, and provides a filter element assembly and a water purifying device.The filter element assembly comprises a filter element seat body, a filter element body and an end cover, the filter element seat body is provided with a mounting cavity and a mounting opening communicated with the mounting cavity, and a guide groove is formed in the inner wall of the mounting opening; the filter element body is arranged in the mounting cavity, one end of the filter element body is inserted into the waterway plate, and the other end of the filter element body is provided with a rotary connecting part; the end cover is correspondingly arranged at the mounting opening, the end cover is rotationally connected with the filter element body through a rotary connecting part, a clamping bulge corresponding to the guide groove is arranged on the peripheral wall of the end cover, and the clamping bulge can slide along the guide groove so as to lock or unlock the position of the filter element body in the mounting cavity; the inclination degree of the groove opening end of the guide groove is different from the inclination angle of the guide-in end of the clamping protrusion. The mounting resistance during assembly of the filter element assembly is reduced, so that more labor is saved during element replacement by a user, and the user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water purification, in particular to a filter element component and a water purification device. Background Art

[0002] Water purification products are water purifiers, which are water treatment equipment that deeply filters and purifies water according to the requirements of water use. Water purifiers can effectively filter out rust, sand, colloids in water, and absorb residual chlorine, odor, discoloration, pesticides and other chemical agents in water. They can effectively remove bacteria, germs, toxins, heavy metals and other impurities in water. They are widely used in both civil and commercial applications.

[0003] In the relevant technical field, the connection method between the end cover and the shell or support in the filter element assembly is often to rotate and install by a screw-on core-changing method. Since the filter element is provided with one end of the water inlet and the water outlet, which are axially opposite to the end cover connection end, the filter element assembly needs to overcome the rotational resistance while overcoming the axial water inlet pressure when replacing it, which makes it difficult for users to replace the filter element and affects the user experience. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model proposes a filter element assembly, which reduces the installation resistance when assembling the filter element assembly, makes it easier for users to change the element, and improves the user experience.

[0005] The utility model also provides a water purification device.

[0006] According to the utility model, the filter element assembly comprises:

[0007] A filter element seat body, the filter element seat body having a mounting cavity and a mounting opening communicated with the mounting cavity, and a guide groove is provided on the inner wall of the mounting opening;

[0008] A filter element body, wherein the filter element body is arranged in the installation cavity, one end of the filter element body is plugged with the waterway plate, and the other end of the filter element body is provided with a rotating connection part;

[0009] An end cover, the end cover is correspondingly arranged at the installation opening, the end cover is rotatably connected to the filter element body through the rotating connection portion, a clamping protrusion corresponding to the guide groove is provided on the outer peripheral wall of the end cover, and the clamping protrusion can slide along the guide groove to lock or unlock the position of the filter element body in the installation cavity;

[0010] Wherein, the inclination of the notch end of the guide groove is different from the inclination angle of the introduction end of the clamping protrusion.

[0011] According to one embodiment of the utility model, the guide groove includes a first guide surface arranged at the inlet end, the first guide surface is inclined along the circumference of the installation port, the clamping protrusion includes a second guide surface arranged at the introduction end, the second guide surface is inclined along the circumference of the end cover, and the angle α between the first guide surface and the axial direction is different from the angle β between the second guide surface and the cross section.

[0012] According to one embodiment of the utility model, the guide groove also includes a first abutment surface, the first abutment surface is connected to an end of the first guide surface away from the slot, the clamping protrusion includes a second abutment surface, the second abutment surface is connected to a side of the second guide surface away from the introduction end, the second abutment surface is extended along the circumference of the end cover, and the first abutment surface and the second abutment surface are abutted against each other.

[0013] According to an embodiment of the present invention, the angle α between the first guide surface and the axial direction is greater than or equal to 30°.

[0014] According to an embodiment of the present invention, an angle β between the second guide surface and a cross section perpendicular to the axial direction of the end cover is greater than or equal to 30°.

[0015] According to an embodiment of the utility model, the bottom wall of the guide groove is inclined, and the angle between the bottom wall and the cross section perpendicular to the axial direction of the filter element seat body is γ, wherein γ is greater than or equal to β.

[0016] According to an embodiment of the present invention, the end cover is raised toward a side away from the filter element body to form a gripping portion.

[0017] According to an embodiment of the present invention, a protrusion distance H of the gripping portion along the axial direction of the end cover is greater than or equal to 12 mm.

[0018] According to an embodiment of the utility model, the outer peripheral edge of the end cover is provided with a flange portion toward the filter element body, the flange portion is provided on one end of the filter element body provided with the rotating connection portion, and the clamping protrusion is provided on the outer wall surface of the flange portion.

[0019] The utility model also proposes a water purification device, which includes a shell and the filter element assembly, and the filter element assembly includes a filter element seat body, a filter element body and an end cover, the filter element seat body has an installation cavity and an installation port connected to the installation cavity, and a guide groove is provided on the inner wall of the installation port; the filter element body is arranged in the installation cavity, one end of the filter element body is plugged into the waterway plate, and the other end of the filter element body is provided with a rotating connection part; the end cover is correspondingly arranged at the installation port, and the end cover is rotatably connected to the filter element body through the rotating connection part, and a clamping protrusion corresponding to the guide groove is provided on the outer peripheral wall of the end cover, and the clamping protrusion can slide along the guide groove to lock or unlock the position of the filter element body in the installation cavity; wherein the inclination of the notch end of the guide groove is different from the inclination angle of the introduction end of the clamping protrusion.

[0020] The above one or more technical solutions in the embodiments of the utility model have at least one of the following technical effects:

[0021] The present application makes the inclination angle of the notch end of the guide groove different from the inclination angle of the lead-in end of the clamping protrusion, so that when the filter element assembly is assembled, the original surface-to-surface contact between the lead-in end of the clamping protrusion and the notch of the guide groove is replaced by the contact between the abutment point and the abutment surface, making it easier for the clamping protrusion to slide along the guide groove, thereby reducing the installation resistance. Due to the special design of the guide groove and the clamping protrusion, the position of the filter element body can be more easily adjusted and locked, so that the user can save more effort when replacing the filter element, thereby improving the user's experience.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of an embodiment of a water purification device provided by an embodiment of the utility model;

[0025] Figure 2 It is a partial cross-sectional view of the filter element assembly during assembly in the utility model embodiment;

[0026] Figure 3 yes Figure 2 The enlarged view of point A in the middle;

[0027] Figure 4 yes Figure 1 a cross-sectional view of the middle shell;

[0028] Figure 5 It is a schematic diagram of the assembly of the filter element body and the end cover.

[0029] Reference numerals:

[0030] 10. Water purification device;

[0031] 100. Filter element assembly;

[0032] 110, filter element seat body; 111, installation cavity; 112, installation opening; 113, guide groove; 113a, first guide surface; 113b, first abutting surface; 113c, groove bottom wall;

[0033] 120. Filter element body;

[0034] 130, end cover; 131, clamping protrusion; 131a, second guide surface; 131b, second abutting surface; 132, gripping portion; 133, flange portion;

[0035] 200. Shell. DETAILED DESCRIPTION

[0036] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0037] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" 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 embodiments of the present utility model 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 limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0039] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. 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 utility model embodiment. In this specification, the schematic representations of the above terms do 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. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0041] Water purification products are water purifiers, which are water treatment equipment that deeply filters and purifies water according to the requirements of water use. Water purifiers can effectively filter out rust, sand, colloids in water, and absorb residual chlorine, odor, discoloration, pesticides and other chemical agents in water. They can effectively remove bacteria, germs, toxins, heavy metals and other impurities in water. They are widely used in both civil and commercial applications.

[0042] In the relevant technical field, the connection method between the end cover and the shell or support in the filter element assembly is often to rotate and install by a screw-on core-changing method. Since the filter element is provided with one end of the water inlet and the water outlet, which are axially opposite to the end cover connection end, the filter element assembly needs to overcome the rotational resistance while overcoming the axial water inlet pressure when replacing it, which makes it difficult for users to replace the filter element and affects the user experience.

[0043] The utility model provides a filter element component and a water purification device.

[0044] In the embodiment of the present utility model, Figures 1 to 3As shown, the filter element assembly 100 includes a filter element seat body 110, a filter element body 120 and an end cover 130. The filter element seat body 110 has an installation cavity 111 and an installation port 112 connected to the installation cavity 111. The inner wall of the installation port 112 is provided with a plurality of axially symmetrical guide grooves 113; the filter element body 120 is arranged in the installation cavity 111, one end of the filter element body 120 is plugged and arranged with the waterway plate, and the other end of the filter element body 120 is provided with a rotating connection portion; the end cover 130 is correspondingly arranged at the installation port 112, and the end cover 130 is rotatably connected to the filter element body 120 through the rotating connection portion. A clamping protrusion 131 corresponding to the guide groove 113 is provided on the outer peripheral wall of the end cover 130, and the clamping protrusion 131 can slide along the guide groove 113 to lock or unlock the position of the filter element body 120 in the installation cavity 111; wherein the inclination of the notch end of the guide groove 113 is different from the inclination angle of the introduction end of the clamping protrusion 131.

[0045] The filter element seat body 110 can be a mounting support provided separately from the housing 200 or a setting formed integrally with the housing 200. A mounting cavity 111 and a mounting port 112 connected to the mounting cavity 111 are formed on the mounting seat body. The mounting cavity 111 provides a stable installation space for the filter element body 120. The mounting port 112 allows the filter element body 120 to be easily inserted and removed. It also ensures that water or other fluids can flow into and pass through the filter element body 120. A plurality of axially symmetrical guide grooves 113 are provided on the inner wall of the mounting port 112. The guide grooves 113 provide directional guidance so that the snap-on protrusions 131 on the end cover 130 can accurately slide into the guide grooves 113 to ensure the correct installation position of the filter element body 120.

[0046] The filter element body 120 is arranged in the installation cavity 111, and one end of the filter element body 120 is plugged with the waterway plate, which facilitates the installation between the waterway plate and the filter element body 120 and simplifies the structural design of the waterway plate, reducing production costs. The other end of the filter element body 120 is provided with a rotating connection portion, so that the end cover 130 and the filter element body 120 can be rotatably connected. In this way, the filter element body 120 and the waterway plate can be limited in the axial direction by the end cover 130, so that the filter element body 120 does not need to rotate during the fixing process, reducing the rotating structure set on the waterway plate, and further simplifying the structure of the waterway plate. It is also convenient for users to operate.

[0047] The end cap 130 is correspondingly arranged at the installation opening 112. The end cap 130 is rotatably connected to the filter element body 120 through a rotating connection portion to ensure that the end cap 130 can tightly cover the installation opening 112, and the filter element body 120 is separated from the waterway plate. A clamping protrusion 131 corresponding to the guide groove 113 is provided on the outer peripheral wall of the end cap 130. The clamping protrusion 131 can slide along the guide groove 113. When the end cap 130 is rotated to the correct position, the clamping protrusion 131 will slide into the guide groove 113, thereby locking the end cap 130 in the correct position. To ensure the stability and safety of the end cap 130. The inclination of the notch end of the guide groove 113 is different from the inclination angle of the introduction end of the clamping protrusion 131. In this way, when the clamping protrusion 131 slides into the guide groove 113, the inclination angle of its introduction end is different from the inclination of the guide groove 113, which makes the sliding process smoother and reduces the installation resistance.

[0048] The present application makes the inclination of the notch end of the guide groove 113 different from the inclination angle of the introduction end of the clamping protrusion 131, so that when the filter element assembly 100 is assembled, the original surface-to-surface contact between the introduction end of the clamping protrusion 131 and the notch of the guide groove 113 is replaced by the contact between the abutment point and the abutment surface, so that the clamping protrusion 131 can slide along the guide groove 113 more easily, thereby reducing the installation resistance. Due to the special design of the guide groove 113 and the clamping protrusion 131, the position of the filter element body 120 can be more easily adjusted and locked, so that the user can save more effort when replacing the filter element, thereby improving the user's experience.

[0049] Reference Figures 3 to 5 According to an embodiment of the utility model, the guide groove 113 includes a first guide surface 113a provided at the inlet end, the first guide surface 113a is inclined along the circumference of the installation port 112, the clamping protrusion 131 includes a second guide surface 131a provided at the introduction end, the second guide surface 131a is inclined along the circumference of the end cover 130, and the angle α between the first guide surface 113a and the axial direction is different from the angle β between the second guide surface 131a and the cross section. It can be understood that in this embodiment, the inlet end of the guide groove 113 and the introduction end of the clamping protrusion 131 are correspondingly provided with the first guide surface 113a and the second guide surface 131a with different inclinations, and the inclination of the first guide surface 113a can be greater than the inclination of the second guide surface 131a, or the inclination of the first guide surface 113a is less than the inclination of the second guide surface 131a. In this way, by setting the inclination of one guide surface to be larger and the inclination of the other guide surface to be smaller, the surface-to-surface abutment between the first guide surface 113a and the second guide surface 131a can be prevented, and a sliding fit between points and surfaces is achieved instead, thereby effectively reducing friction, reducing resistance during connection, and improving the smoothness of the connection.

[0050] Reference Figure 4 and Figure 5 According to one embodiment of the utility model, the guide groove 113 also includes a first abutting surface 113b, which is connected to an end of the first guide surface 113a away from the slot, and the clamping protrusion 131 includes a second abutting surface 131b, which is connected to a side of the second guide surface 131a away from the introduction end, and the second abutting surface 131b is extended along the circumference of the end cover 130, and the first abutting surface 113b and the second abutting surface 131b are abutted against each other. It can be understood that during the use of the filter element body 120, since the waterway is arranged at the end where the waterway plate is inserted, the filter element body 120 will give the end cover 130 an axial force away from the end of the waterway plate. In order to improve the axial abutment force between the end cover 130 and the filter element seat body 110, the present embodiment provides a first abutment surface 113b at the end of the first guide surface 113a facing the groove bottom and a second abutment surface 131b on the snap-fitting protrusion 131. When the snap-fitting protrusion 131 is locked with the guide groove 113, the abutment cooperation between the first abutment surface 113b and the second abutment surface 131b provides an axial abutment force for the end cover 130, thereby fixing the filter element body 120 in the installation cavity 111, and improving the connection stability and reliability of the filter element assembly 100.

[0051] Reference Figure 4 According to an embodiment of the utility model, the angle α between the first guide surface 113a and the axial direction is greater than or equal to 30°. It can be understood that the size of the angle α between the first guide surface 113a and the axial direction in the present application will affect the thickness of the groove wall of the corresponding guide groove 113. The smaller the angle α between the first guide surface 113a and the axial direction, the smaller the thickness of the groove wall corresponding to the first guide surface 113a. The smaller the wall thickness will lead to weakened structural strength, which is not conducive to repeated installation with the filter element assembly 100, and cannot ensure the stability and reliability of the connection. Therefore, in this embodiment, the angle α between the first guide surface 113a and the axial direction is limited to be greater than or equal to 30° to ensure the wall thickness of the groove wall corresponding to the first guide surface 113a and the structural strength of the guide groove 113.

[0052] Reference Figure 5According to an embodiment of the utility model, the angle β between the second guide surface 131a and the cross section perpendicular to the axial direction of the end cover 130 is greater than or equal to 30°. It can be understood that the size of the angle β between the second guide surface 131a and the cross section in the present application will also affect the axial thickness of the corresponding clamping protrusion 131. The smaller the angle β between the second guide surface 131a and the cross section, the smaller the axial thickness corresponding to the second guide surface 131a. The smaller the wall thickness will lead to weakened structural strength, which is not conducive to repeated installation with the filter element assembly 100, and cannot ensure the stability and reliability of the connection. Therefore, in this embodiment, the angle β between the second guide surface 131a and the cross section is limited to be greater than or equal to 30° to ensure the axial thickness of the clamping protrusion 131 corresponding to the second guide surface 131a and the structural strength of the clamping protrusion 131.

[0053] Reference Figure 4 and Figure 5 According to an embodiment of the utility model, the bottom wall 113c of the guide groove 113 is inclined, and the angle between the bottom wall 113c and the cross section perpendicular to the axial direction of the filter element seat body 120 is γ, wherein γ is greater than or equal to β. It can be understood that when the clamping protrusion 131 slides into the bottom of the guide groove 113, the locking between the end cover 130 and the mounting port 112 is completed. In this embodiment, the bottom wall 113c of the guide groove 113 is set to an inclined angle adapted to the second guide surface 131a corresponding to the clamping protrusion 131 after being clamped and fixed, so that the guide groove 113 can be mutually engaged with the clamping protrusion 131. Of course, in other embodiments, the bottom wall 113c can also be set to an inclination greater than the inclination of the second guide surface 131a, thereby improving the matching degree of the guide groove 113 to the clamping protrusions 131 with different inclinations, and increasing the applicability of the guide groove 113.

[0054] Reference Figure 2 and Figure 4 According to an embodiment of the utility model, the end cap 130 is raised toward the side away from the filter element body 120 to form a gripping portion 132. It can be understood that in this embodiment, a portion of the end cap 130 protrudes in the direction away from the filter element body 120 to form a gripping shape, so that the operator can easily hold the end cap 130 and operate it. The end cap 130 is raised on the side away from the filter element body 120 to form a gripping portion 132, so that the operator who replaces or assembles can provide a handle for holding. The shape of the gripping portion 132 can be a shape suitable for the size of human hands, such as a circle, a rectangle or a semicircle, so that the operator can easily hold and operate it.

[0055] Specifically, the ridge distance H of the grip portion 132 along the axial direction of the end cap 130 is greater than or equal to 12 mm. It is understandable that a larger ridge distance of the grip portion 132 can provide a better handle, allowing the user to better control and operate the filter element. A larger ridge distance can provide better grip and comfort. Specifically, the ridge distance can be selected according to the size of the filter element or the setting requirements, and is not specifically limited here.

[0056] Reference Figure 5 According to an embodiment of the present invention, the outer periphery of the end cap 130 is provided with a flange portion 133 toward the filter element body 120, the flange portion 133 is provided to cover one end of the filter element body 120 provided with the rotating connection portion, and the clamping protrusion 131 is provided on the outer wall surface of the flange portion 133. It can be understood that, by providing the flange portion 133, the end cap 130 can cover one end of the filter element body 120 and provide an embedded space to accommodate the rotating connection portion of the filter element body 120. By combining the rotating connection portion and the end cap 130, the end cap 130 can be firmly fixed on the filter element body 120. At the same time, the flange portion 133 can also provide a position for the clamping protrusion 131.

[0057] The utility model also proposes a water purification device 10, which includes a housing 200 and a filter element assembly 100. The specific structure of the filter element assembly 100 refers to the above embodiment. Since the water purification device 10 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.

[0058] Finally, it should be noted that the above implementation modes are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A filter element assembly, characterized in that: include: A filter element seat body, the filter element seat body having a mounting cavity and a mounting opening communicated with the mounting cavity, and a guide groove is provided on the inner wall of the mounting opening; A filter element body, wherein the filter element body is arranged in the installation cavity, one end of the filter element body is plugged with the waterway plate, and the other end of the filter element body is provided with a rotating connection part; An end cover, the end cover is correspondingly arranged at the installation opening, the end cover is rotatably connected to the filter element body through the rotating connection portion, a clamping protrusion corresponding to the guide groove is provided on the outer peripheral wall of the end cover, and the clamping protrusion can slide along the guide groove to lock or unlock the position of the filter element body in the installation cavity; Wherein, the inclination of the notch end of the guide groove is different from the inclination angle of the introduction end of the clamping protrusion.

2. The filter element assembly according to claim 1, characterized in that: The guide groove includes a first guide surface arranged at the introduction end, the first guide surface is inclined along the circumference of the installation port, the clamping protrusion includes a second guide surface arranged at the introduction end, the second guide surface is inclined along the circumference of the end cover, and the angle α between the first guide surface and the axial direction is different from the angle β between the second guide surface and the cross section.

3. The filter element assembly according to claim 2, characterized in that: The guide groove also includes a first abutment surface, which is connected to an end of the first guide surface away from the slot, and the locking protrusion includes a second abutment surface, which is connected to a side of the second guide surface away from the introduction end, and the second abutment surface is extended along the circumference of the end cover, and the first abutment surface and the second abutment surface are abutted against each other.

4. The filter element assembly according to claim 2, characterized in that: An included angle α between the first guide surface and the axial direction is greater than or equal to 30°.

5. The filter element assembly according to claim 2, characterized in that: An included angle β between the second guide surface and a cross section perpendicular to the axial direction of the end cover is greater than or equal to 30°.

6. The filter element assembly according to claim 2, characterized in that: The bottom wall of the guide groove is inclined, and the angle between the bottom wall and the cross section perpendicular to the axial direction of the filter element seat body is γ, wherein γ is greater than or equal to β.

7. The filter element assembly according to any one of claims 1 to 6, characterized in that: The end cover is raised toward a side away from the filter element body to form a gripping portion.

8. The filter element assembly according to claim 7, characterized in that: A protrusion distance H of the gripping portion along the axial direction of the end cover is greater than or equal to 12 mm.

9. The filter element assembly according to any one of claims 1 to 6, characterized in that: The outer peripheral edge of the end cover is provided with a flange portion toward the filter element body, the flange portion is provided to cover one end of the filter element body provided with the rotating connection portion, and the clamping protrusion is provided on the outer wall surface of the flange portion.

10. A water purification device, characterized in that: It comprises a housing and a filter element assembly as claimed in any one of claims 1 to 9.

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