Water purifying device and filter element assembly

Abstract

The utility model relates to the technical field of household appliances, in particular to a water purifying device and a filter element assembly. The filter element assembly comprises a body part, a fixing sleeve and a sealing ring. A limiting step is arranged on the peripheral wall of the water outlet pipe, the free end of the water outlet pipe is sleeved with the fixing sleeve, a limiting groove is defined between the portion, located on the periphery of the water outlet pipe, of the fixing sleeve and the limiting step, and the water outlet pipe is sleeved with the sealing ring which is located in the limiting groove. The fixing sleeve is arranged at the end of the water outlet pipe of the filter element assembly, the sealing ring is limited to the water outlet pipe through the fixing sleeve, the connecting position of the water outlet pipe and the waterway plate is sealed through the sealing characteristic of the sealing ring, and on one hand, the sealing performance between the water outlet pipe and the waterway plate can be improved by improving the assembling stability of the sealing ring; and on the other hand, the sealing ring is limited by the fixing sleeve, so that the procedure of welding the sealing ring to the water outlet pipe can be omitted, the processing technology of the filter element assembly is simplified, and the production cost of the filter element assembly is reduced.

Description

Technical Field

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

[0002] In the related art, the biggest risk of using an under-sink water purifier is a crisis caused by water leakage in the internal pipes or filter element of the water purifier. The sealing structure is particularly critical at the connection between the filter element assembly and the waterway plate. In the related art, one solution is to directly open a sealing groove on the periphery of the interface, and the sealing ring is installed in the sealing groove. However, a parting line will be formed during the injection molding process of the sealing groove. When the parting line is not of a good size, water seepage will occur, and higher requirements are placed on production stability. Another solution is to install the sealing ring inside the interface, and fix the sealing ring by ultrasonic welding to another fixing. The advantage is that there is no parting line, and the disadvantage is that the welding process is increased and the cost is higher. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. The utility model also proposes a filter element assembly, comprising:

[0004] A main body, wherein a water outlet pipe is provided on the main body, the water outlet pipe is suitable for being connected and communicated with the waterway plate, and a limiting step is provided on the outer peripheral wall of the water outlet pipe;

[0005] A fixing sleeve, wherein the fixing sleeve is arranged at the free end of the water outlet pipe, and a limiting groove is defined between a portion of the fixing sleeve located at the outer periphery of the water outlet pipe and the limiting step;

[0006] A sealing ring is sleeved on the outer circumference of the water outlet pipe and is located in the limiting groove.

[0007] According to the filter element assembly provided by the utility model, the fixed sleeve includes an inner ring limiting portion, an outer ring limiting portion and a connecting portion connected between the inner ring limiting portion and the outer ring limiting portion, the connecting portion is attached to the end face of the water outlet pipe, the inner ring limiting portion is attached to the inner circumferential wall of the water outlet pipe, the outer ring limiting portion is attached to the outer circumferential wall of the water outlet pipe, and the limiting groove is defined between the outer ring limiting portion and the limiting step.

[0008] According to the filter element assembly provided by the utility model, a first clamping portion is provided on the inner ring limiting portion, and a second clamping portion is provided on the inner circumferential wall of the water outlet pipe, the first clamping portion and the second clamping portion are clamped together, and one of the first clamping portion and the second clamping portion is a clamping protrusion, and the other is a clamping groove.

[0009] According to the filter element assembly provided by the utility model, there are multiple first clamping parts, and the multiple first clamping parts are spaced apart along the circumferential direction of the water outlet pipe.

[0010] According to the filter element assembly provided by the utility model, the outer ring limiting portion is a closed annular structure, and the inner ring of the outer ring limiting portion is in contact with the outer peripheral wall of the water outlet pipe.

[0011] According to the filter element assembly provided by the utility model, in the axial direction of the water outlet pipe, the length of the outer ring limiting portion is smaller than the length of the inner ring limiting portion.

[0012] According to the filter element assembly provided by the utility model, in the radial direction of the water outlet pipe, the thickness of the outer ring limiting portion is greater than the thickness of the inner ring limiting portion.

[0013] According to the filter element assembly provided by the utility model, at least a portion of the inner wall of the limiting groove is an arc-shaped surface.

[0014] According to the filter element assembly provided by the utility model, there are multiple sealing rings, and the multiple sealing rings are arranged along the axial direction of the water outlet pipe.

[0015] According to the filter element assembly provided by the utility model, the fixing sleeve is an integrally formed part.

[0016] The utility model also provides a water purification device, comprising:

[0017] chassis;

[0018] A filter element mounting seat, the filter element mounting seat is arranged in the housing, and the filter element mounting seat and the housing are an integrally formed part;

[0019] A filter element assembly, wherein the filter element assembly is arranged on the filter element mounting seat, and the filter element assembly is the filter element assembly as described above.

[0020] According to the water purification device and filter element assembly of the embodiment of the utility model, a fixing sleeve is provided at the end of the water outlet pipe of the filter element assembly, and the sealing ring is limited at the water outlet pipe by the fixing sleeve, so that the sealing property of the sealing ring is utilized to seal the connection between the water outlet pipe and the waterway plate. On the one hand, the sealing performance between the water outlet pipe and the waterway plate can be improved by improving the assembly stability of the sealing ring; on the other hand, by limiting the sealing ring by the fixing sleeve, the process of welding the sealing ring to the water outlet pipe can be eliminated, thereby simplifying the processing technology of the filter element assembly and reducing its production cost.

[0021] 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

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a filter element assembly according to an embodiment of the utility model;

[0024] Figure 2 is a cross-sectional view of a filter element assembly according to an embodiment of the utility model;

[0025] Figure 3 yes Figure 2 Schematic diagram of the local structure;

[0026] Figure 4 yes Figure 3 Exploded view of the local structure;

[0027] Figure 5 It is a stereoscopic view of a fixing sleeve of a filter element assembly according to an embodiment of the utility model.

[0028] Reference numerals:

[0029] 100. Filter element assembly;

[0030] 110, main body; 111, water outlet pipe; 112, limiting step; 113, limiting groove; 114, second engaging portion;

[0031] 120, fixed sleeve; 121, inner ring limiting portion; 124, first engaging portion; 122, outer ring limiting portion; 123, connecting portion;

[0032] 130. Sealing ring. DETAILED DESCRIPTION

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] 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.

[0038] The following describes a water purification device and a filter element assembly 100 according to an embodiment of the utility model with reference to the accompanying drawings. It should be noted that the water purification device can be a water purifier, and the filter element assembly 100 is arranged in the water purifier for filtering water. A water purifier is a device that can process a water source containing impurities and harmful substances to make it pure and drinkable. Its main function is to filter out harmful substances such as suspended matter, bacteria, viruses, heavy metals, etc. in the water, while retaining minerals and trace elements in the water that are beneficial to the human body. There are many types of water purifiers, and according to their different filtering methods, they can be mainly divided into reverse osmosis water purifiers, ultrafiltration water purifiers, activated carbon water purifiers, ceramic filtration water purifiers, etc. In general, a water purifier is an important equipment that can effectively improve water quality and ensure the safety of people's drinking water.

[0039] like Figure 1 and Figure 2 As shown, the filter element assembly 100 provided according to the present invention includes a main body 110 , a fixing sleeve 120 and a sealing ring 130 .

[0040] Specifically, the main body 110 has a filtering function, and a water outlet pipe 111 is provided on the main body 110. Water entering the main body 110, waste water generated after filtering, and pure water can all flow out through the corresponding water outlet pipe 111. The water outlet pipe 111 is suitable for connecting and communicating with the waterway board. The waterway board can be provided with a raw water channel, a waste water channel, and a pure water channel. The water outlet pipe 111 on the main body 110 can be one or more, and each water outlet pipe 111 is connected and communicated with the corresponding waterway on the waterway board.

[0041] like Figure 3 and Figure 4 As shown, a limiting step 112 is provided on the outer peripheral wall of the water outlet pipe 111, and the fixing sleeve 120 is sleeved on the free end of the water outlet pipe 111, and a limiting groove 113 is defined between the portion of the fixing sleeve 120 located on the outer periphery of the water outlet pipe 111 and the limiting step 112. It can be understood that part of the outer peripheral wall of the water outlet pipe 111 serves as the bottom wall of the limiting groove 113, the end surface of the limiting step 112 facing the fixing sleeve 120 serves as one side wall of the limiting groove 113, and the end surface of the fixing sleeve 120 facing the limiting step 112 serves as the other side wall of the limiting groove 113, so that the end surface of the limiting step 112 facing the fixing sleeve 120 and the end surface of the fixing sleeve 120 facing the limiting step 112 are spaced apart in the axial direction of the water outlet pipe 111, and the distance between the two can be used as the width of the limiting groove 113.

[0042] See also Figure 3As shown, the limiting groove 113 extends along the circumferential direction of the water outlet pipe 111, so that the sealing ring 130 can be fitted on the outer circumference of the water outlet pipe 111, and the sealing ring 130 is located in the limiting groove 113. The end surface of the limiting step 112 facing the fixing sleeve 120 and the end surface of the fixing sleeve 120 facing the limiting step 112 have a limiting effect on the sealing ring 130, preventing the sealing ring 130 from moving along the axial direction of the water outlet pipe 111, thereby limiting the position of the sealing ring 130. The sealing ring 130 here can be used to seal the gap between the water outlet pipe 111 and the waterway plate, preventing water from flowing out of the assembly gap between the water outlet pipe 111 and the waterway plate, thereby improving the sealing performance of the water purification device.

[0043] According to the filter element assembly 100 of the embodiment of the utility model, a fixing sleeve 120 is provided at the end of the water outlet pipe 111 of the filter element assembly 100, and the sealing ring 130 is limited at the water outlet pipe 111 by using the fixing sleeve 120, so that the sealing property of the sealing ring 130 can be used to seal the connection between the water outlet pipe 111 and the waterway plate. On the one hand, the sealing performance between the water outlet pipe 111 and the waterway plate can be improved by improving the assembly stability of the sealing ring 130; on the other hand, by using the fixing sleeve 120 to limit the sealing ring 130, the process of welding the sealing ring to the water outlet pipe can be eliminated, thereby simplifying the processing technology of the filter element assembly 100 and reducing its production cost.

[0044] Combination Figure 3 and Figure 4 As shown, according to some embodiments of the present invention, the fixing sleeve 120 may include an inner ring limiting portion 121, an outer ring limiting portion 122 and a connecting portion 123 connected between the inner ring limiting portion 121 and the outer ring limiting portion 122, the connecting portion 123 is attached to the end surface of the water outlet pipe 111, the inner ring limiting portion 121 is attached to the inner peripheral wall of the water outlet pipe 111, the outer ring limiting portion 122 is attached to the outer peripheral wall of the water outlet pipe 111, and a limiting groove 113 is defined between the outer ring limiting portion 122 and the limiting step 112. In this way, the inner ring limiting portion 121, the outer ring limiting portion 122 and the connecting portion 123 define a wrapping space, the end of the water outlet pipe 111 is inserted into the wrapping space, the inner ring limiting portion 121, the outer ring limiting portion 122 and the connecting portion 123 are firmly fixed at the water outlet pipe 111, so that the sealing ring 130 can be stably fixed at the water outlet pipe 111.

[0045] According to some embodiments of the utility model, the fixing sleeve 120 can be an integrally formed part. It should be noted that the integrally formed process can produce parts with complex shapes and precise dimensions through a one-time forming process, and no additional processing is required during the forming process, thereby reducing material waste and costs; in addition, the integrally formed process has a short process cycle, high production efficiency, and can produce parts with good surface quality and precision.

[0046] In some examples, at least one of the sealing ring 130 and the fixing sleeve 120 can be a rubber part. It should be noted that the rubber material has good elasticity and flexibility, can provide stable support force, prevent the fixing parts from shaking or loosening during use, thereby ensuring the assembly stability between the filter element assembly 100 and the waterway plate. In addition, rubber has good wear resistance and can effectively resist external friction and wear, thereby extending the service life of the fixing sleeve 120 or the sealing ring 130; the rubber material has good corrosion resistance and can resist the erosion of various chemical substances, thereby ensuring the long-term stability and reliability of the fixing sleeve 120 or the sealing ring 130. In general, the fixing sleeve 120 or the sealing ring 130 made of rubber material has multiple advantages such as good stability, strong wear resistance, shockproof and noise reduction, chemical corrosion resistance, easy installation and replacement, etc.

[0047] According to some embodiments of the utility model, there are multiple sealing rings 130, and the multiple sealing rings 130 are arranged along the axial direction of the water outlet pipe 111. The main function of the sealing ring 130 is to prevent liquid or gas from leaking from the connection. Providing multiple sealing rings 130 can increase the contact area of ​​the sealing surface, thereby improving the sealing performance. This is because each sealing ring 130 can form an independent sealing area, even if one of the sealing rings 130 fails, the other sealing rings 130 can still maintain a sealed state, thereby avoiding the occurrence of leakage. Since the working pressure of each sealing ring 130 is small, the wear rate of a single sealing ring 130 can be reduced, thereby extending the service life of the sealing ring 130. Providing multiple sealing rings 130 can improve the reliability of the equipment. Because even if one of the sealing rings 130 fails, the other sealing rings 130 can still maintain a sealed state. In general, providing multiple sealing rings 130 can improve the sealing performance of the equipment, extend the service life, improve the reliability of the equipment, facilitate maintenance and replacement, and improve the working efficiency of the equipment.

[0048] According to some embodiments of the present invention, at least a portion of the inner wall of the limiting groove 113 is an arc-shaped surface, so that the sealing element can be stably limited in the limiting groove 113 .

[0049] According to some embodiments of the present invention, Figure 3 and Figure 5 As shown, the inner ring limiter 121 is provided with a first engaging portion 124, and the inner peripheral wall of the water outlet pipe 111 is provided with a second engaging portion 114, the first engaging portion 124 and the second engaging portion 114 are engaged, one of the first engaging portion 124 and the second engaging portion 114 is an engaging protrusion, and the other is an engaging groove. The engaging protrusion can be engaged in the engaging groove, so that the engagement stability between the inner ring limiter 121 and the water outlet pipe 111 can be improved by engaging in the manner of engaging, and the fixing sleeve 120 can be prevented from being separated from the water outlet pipe 111.

[0050] Further, see Figure 5 As shown, there can be multiple inner circle limiting parts 121, and the multiple inner circle limiting parts 121 are spaced apart along the circumferential direction of the outlet pipe 111. The existence of multiple inner circle limiting parts 121 can increase the bearing capacity of the structure. This is because each fixing part can bear a part of the force, so that the entire structure can withstand greater pressure or weight. By setting up multiple inner circle limiting parts 121, the force can be effectively dispersed and balanced, and the wear of a single inner circle limiting part 121 can be reduced, thereby improving the durability of the overall structure and making the overall structure more stable. If a problem occurs in a certain inner circle limiting part 121, the remaining inner circle limiting parts 121 can also play a role of limiting and fixing, so that multiple fixing parts can provide multiple lines of defense and increase the safety of the structure. In general, setting up multiple inner circle limiting parts 121 can improve the stability, safety and adaptability of the object, making the fixation more firm and reliable.

[0051] According to some embodiments of the present invention, see Figure 4 and Figure 5 As shown, the outer ring limiting portion 122 is a closed annular structure, and the inner ring of the outer ring limiting portion 122 is in contact with the outer peripheral wall of the water outlet pipe 111. It should be noted that the "closed" here can be understood as the outer ring limiting portion 122 completely wrapping the outer wall surface of the water outlet pipe 111 in the circumferential direction of the water outlet pipe 111. In this way, the water outlet pipe 111 can be completely wrapped in the circumferential direction of the water outlet pipe 111, so that the fixing sleeve 120 can be stably and firmly fitted on the end of the water outlet pipe 111.

[0052] In order to improve the structural strength of the fixing sleeve 120, according to some embodiments of the present invention, see Figure 4 and Figure 5 As shown, in the axial direction of the water outlet pipe 111 , the length of the outer ring limiting portion 122 is smaller than the length of the inner ring limiting portion 121 ; in the radial direction of the water outlet pipe 111 , the thickness of the outer ring limiting portion 122 is greater than the thickness of the inner ring limiting portion 121 .

[0053] See below Figure 1-Figure 5 The filter element assembly 100 according to the embodiment of the present invention is described in detail. It is worth noting that the following description is only an exemplary description and is not a specific limitation of the present invention.

[0054] See also Figure 1 and Figure 2As shown, the filter element assembly 100 includes a main body 110, a fixing sleeve 120 and a sealing ring 130. The main body 110 has a filtering function, and three water outlet pipes 111 are provided on the main body 110. A raw water channel, a waste water channel and a pure water channel can be set on the waterway plate. One of the three water outlet pipes 111 can be used as an inlet pipe, and the water outlet pipe 111 is connected and communicated with the inlet water channel, and another water outlet pipe 111 can be used as a waste water pipe, and the water outlet pipe 111 is connected and communicated with the waste water channel, and another water outlet pipe 111 can be used as a pure water pipe, and the water outlet pipe 111 is connected and communicated with the pure water channel. A sealing ring 130 is provided at the end of each water outlet pipe 111, and the sealing ring 130 on each water outlet pipe 111 is fixed by a fixing sleeve 120.

[0055] See also Figure 3 and Figure 4 As shown, a limiting step 112 is provided on the outer peripheral wall of the water pipe, a fixing sleeve 120 is sleeved on the free end of the water outlet pipe 111, and a limiting groove 113 is defined between the portion of the fixing sleeve 120 located on the outer periphery of the water outlet pipe 111 and the limiting step 112. The fixing sleeve 120 may include an inner ring limiting portion 121, an outer ring limiting portion 122, and a connecting portion 123 connected between the inner ring limiting portion 121 and the outer ring limiting portion 122, the connecting portion 123 is attached to the end face of the water outlet pipe 111, the inner ring limiting portion 121 is attached to the inner peripheral wall of the water outlet pipe 111, the outer ring limiting portion 122 is attached to the outer peripheral wall of the water outlet pipe 111, and a limiting groove 113 is defined between the outer ring limiting portion 122 and the limiting step 112. In this way, the inner circle limiting portion 121, the outer circle limiting portion 122 and the connecting portion 123 define a wrapping space, the end of the water outlet pipe 111 is inserted into the wrapping space, the inner circle limiting portion 121, the outer circle limiting portion 122 and the connecting portion 123 are firmly fixed to the water outlet pipe 111, so that the sealing ring 130 can be stably fixed to the water outlet pipe 111.

[0056] Combination Figure 3 and Figure 5 As shown, the inner ring limiter 121 is provided with a first engaging portion 124, and the inner peripheral wall of the water outlet pipe 111 is provided with a second engaging portion 114, the first engaging portion 124 and the second engaging portion 114 are engaged, one of the first engaging portion 124 and the second engaging portion 114 is an engaging protrusion, and the other is an engaging groove. The engaging protrusion can be engaged in the engaging groove, so that the engagement stability between the inner ring limiter 121 and the water outlet pipe 111 can be improved by engaging in the manner of engaging, and the fixing sleeve 120 can be prevented from being separated from the water outlet pipe 111. Figure 5 As shown, there may be a plurality of inner circle limiting portions 121, and the plurality of inner circle limiting portions 121 are spaced apart along the circumferential direction of the water outlet pipe 111. The presence of the plurality of inner circle limiting portions 121 can increase the bearing capacity of the structure.

[0057] See also Figure 4 and Figure 5 As shown, the outer ring limiter 122 is a closed annular structure, and the inner ring of the outer ring limiter 122 fits the outer peripheral wall of the water outlet pipe 111. In this way, the water outlet pipe 111 can be completely wrapped in the circumferential direction of the water outlet pipe 111, so that the fixing sleeve 120 can be stably and firmly fitted on the end of the water outlet pipe 111. In the axial direction of the water outlet pipe 111, the length of the outer ring limiter 122 is less than the length of the inner ring limiter 121; in the radial direction of the water outlet pipe 111, the thickness of the outer ring limiter 122 is greater than the thickness of the inner ring limiter 121.

[0058] The water purification device according to the embodiment of the utility model comprises: a casing, a filter element mounting seat and the filter element assembly 100 as described above.

[0059] Specifically, the filter element mounting seat is arranged in the housing, the filter element assembly 100 is arranged on the filter element mounting seat, and the filter element mounting seat and the housing are an integrally formed part. It should be noted that the filter element mounting seat and the housing are formed simultaneously through a single injection molding process to construct an integrated part, which can reduce production costs, simplify assembly steps, reduce production costs, and improve production efficiency.

[0060] According to the water purification device of the embodiment of the utility model, a fixing sleeve 120 is provided at the end of the water outlet pipe 111 of the filter element assembly 100, and the sealing ring 130 is limited at the water outlet pipe 111 by using the fixing sleeve 120, so as to utilize the sealing characteristics of the sealing ring 130 to seal the connection between the water outlet pipe 111 and the waterway plate. On the one hand, the sealing between the water outlet pipe 111 and the waterway plate can be improved by improving the assembly stability of the sealing ring 130; on the other hand, by utilizing the fixing sleeve 120 to limit the sealing ring 130, the process of welding the sealing ring to the water outlet pipe can be eliminated, thereby simplifying the processing technology of the filter element assembly 100 and reducing its production cost.

[0061] According to some embodiments of the utility model, the water purification device further comprises a booster pump, a waterway plate, a pump body mounting seat and a plate body mounting seat, wherein the pump body mounting seat is used to carry the booster pump, and the main body mounting seat is used to carry the waterway plate. In order to simplify the assembly process of the water purification device, the casing, the filter element mounting seat, the pump body mounting seat and the plate body mounting seat can be made by a one-time injection molding process, that is, the casing, the filter element mounting seat, the pump body mounting seat and the plate body mounting seat are an integrally formed part, which can reduce production costs, simplify assembly steps, reduce production costs, and improve production efficiency.

[0062] Furthermore, the opening direction of the pump body mounting seat is the same as the opening direction of the plate body mounting seat, so that when the booster pump and the waterway plate are installed, they can be installed in the same assembly direction, thereby eliminating the need to flip the casing, thereby simplifying the assembly process of the water purification device and shortening the assembly cycle.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

[0064] The above implementation modes are only used to illustrate the present invention, but not 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 substitutions of the technical solutions of the present invention do not deviate 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 main body, wherein a water outlet pipe is provided on the main body, the water outlet pipe is suitable for being connected and communicated with the waterway plate, and a limiting step is provided on the outer peripheral wall of the water outlet pipe; A fixing sleeve, wherein the fixing sleeve is arranged at the free end of the water outlet pipe, and a limiting groove is defined between a portion of the fixing sleeve located at the outer periphery of the water outlet pipe and the limiting step; A sealing ring is sleeved on the outer circumference of the water outlet pipe and is located in the limiting groove.

2. The filter element assembly according to claim 1, characterized in that: The fixing sleeve comprises an inner ring limiting portion, an outer ring limiting portion and a connecting portion connected between the inner ring limiting portion and the outer ring limiting portion, the connecting portion is attached to the end face of the water outlet pipe, the inner ring limiting portion is attached to the inner circumferential wall of the water outlet pipe, the outer ring limiting portion is attached to the outer circumferential wall of the water outlet pipe, and the limiting groove is defined between the outer ring limiting portion and the limiting step.

3. The filter element assembly according to claim 2, characterized in that: The inner ring limiting portion is provided with a first clamping portion, and the inner peripheral wall of the water outlet pipe is provided with a second clamping portion, the first clamping portion and the second clamping portion are clamped together, and one of the first clamping portion and the second clamping portion is a clamping protrusion, and the other is a clamping groove.

4. The filter element assembly according to claim 3, characterized in that: There are a plurality of the first engaging portions, and the plurality of the first engaging portions are spaced apart along the circumferential direction of the water outlet pipe.

5. The filter element assembly according to claim 2, characterized in that: The outer ring limiting portion is a closed annular structure, and the inner ring of the outer ring limiting portion is in contact with the outer peripheral wall of the water outlet pipe.

6. The filter element assembly according to claim 2, characterized in that: In the axial direction of the water outlet pipe, the length of the outer ring limiting portion is smaller than the length of the inner ring limiting portion.

7. The filter element assembly according to claim 2, characterized in that: In the radial direction of the water outlet pipe, the thickness of the outer ring limiting portion is greater than the thickness of the inner ring limiting portion.

8. The filter element assembly according to claim 1, characterized in that: At least a portion of the inner wall of the limiting groove is an arc-shaped surface.

9. The filter element assembly according to claim 1, characterized in that: There are multiple sealing rings, and the multiple sealing rings are arranged along the axial direction of the water outlet pipe.

10. The filter element assembly according to any one of claims 1 to 9, characterized in that: The fixing sleeve is an integrally formed part.

11. A water purification device, characterized in that: include: chassis; A filter element mounting seat, the filter element mounting seat is arranged in the housing, and the filter element mounting seat and the housing are an integrally formed part; A filter element assembly, wherein the filter element assembly is disposed on the filter element mounting seat, and the filter element assembly is the filter element assembly according to any one of claims 1-10.

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