CN206444321U - Element kit and the water purifier with it - Google Patents

Abstract

The utility model discloses a filter element assembly and a water purifier with the filter element assembly, wherein the filter element assembly includes a filter shell, a joint, a cover, a filter element and a central pipe, a filter chamber is defined in the filter shell, and the joint is arranged on the filter shell. The joint is provided with a water inlet and a water outlet connected to the filter cavity, the cover is set on the joint and is located in the filter cavity, the filter element is set in the filter cavity and on the cover, the central tube is inserted into the joint and connected to the outlet The water port is connected. According to the filter element assembly of the utility model, by setting the water inlet and the water outlet on the joint respectively, and setting the joint directly on the filter shell, the joint can not only play the role of sealing the filter chamber, but also realize the connection between raw water and clean water. The shunt effect between the water saves the shunt and other components, thereby effectively simplifying the overall structure of the filter element assembly, facilitating assembly, and reducing manufacturing costs. Moreover, it avoids the welding slag that may be generated when the shunt is welded. In the case of the switch, the reliability of use is improved.

Description

Filter element assembly and water purifier having same

technical field

The utility model relates to the technical field of water purification equipment, in particular to a filter element assembly and a water purifier having the same.

Background technique

At present, the filter element is widely used in water purification equipment, and the impurities in the water can be effectively filtered out through the filter element, and the sterilization effect can be realized. Alternatively, the clamping connection has a relatively complicated structure, and welding slag is likely to be generated when the connection is made by welding, and the welding slag flows out with the water flow to cause the possibility of blocking the switch.

Utility model content

The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

Therefore, the utility model proposes a filter element assembly, which has a simple structure, convenient assembly, low manufacturing cost, high reliability, and good user experience.

The utility model also proposes a water purifier with the above-mentioned filter element assembly.

The filter element assembly according to the first aspect of the utility model includes a filter housing, and a filter chamber is defined in the filter housing; a joint, the joint is provided with a main body, a joint connection part and a water separation column, and the joint connection part is arranged on The upper end of the main body is connected to the filter housing, the water separation column is connected to the main body and at least a part is spaced apart from the inner wall of the main body, and the joint is provided with the filter chamber. A connected water inlet and water outlet; a cover, the cover is arranged on the joint and located in the filter chamber; a filter element, the filter element is arranged in the filter chamber and arranged on the cover; A central pipe, the central pipe is inserted into the joint and communicated with the water outlet.

According to the filter element assembly of the present utility model, by setting the water inlet and the water outlet connected with the filter cavity on the joint, and directly setting the joint on the filter shell, the joint can not only play the role of sealing the filter cavity of the filter element assembly , and can also realize the shunt effect between the raw water entering through the water inlet and the purified water flowing out through the water outlet. Compared with the filter element assembly in the related art, parts such as a flow divider are omitted, thereby effectively simplifying the overall filter element assembly The utility model has the advantages of convenient assembly, reduced manufacturing cost, and avoids the situation that the water purifier switch may be blocked by welding slag that may be generated when the diverter is welded and connected, thereby improving the reliability of use.

In addition, according to the filter element assembly of the present invention, it can also have the following additional technical features:

According to an embodiment of the present utility model, the water outlet is arranged at the middle of the joint, and the water inlet is arranged at the outer periphery of the joint.

According to an embodiment of the present utility model, the water outlet is arranged coaxially with the filter housing and the central pipe, and the water inlet is arranged at two outer ends of the water outlet.

According to an embodiment of the present utility model, the main body part is roughly formed in a column shape, the water separation column is generally formed in a column shape inside the main body part, and the connection between the water separation column and the main body part is provided with the The water inlet, the outer wall surface of the water dividing column and the inner wall surface of the main body are spaced apart to define a water inlet passage communicating with the water inlet, the water outlet is defined in the water dividing column and is suitable for inserting Connect to the outlet channel of the central pipe.

According to an embodiment of the present invention, the lower end of the water dividing column extends downward beyond the lower end of the main body to form the water outlet.

According to an embodiment of the present invention, the inner wall of the upper end of the water separation column is provided with an installation step extending along its circumference, and the lower end of the cover is plugged on the installation step.

According to an embodiment of the present invention, the outer diameter of the main body is smaller than the inner diameter of the filter housing, and an annular transition portion extending obliquely upward and outward is provided between the main body and the joint connection portion.

According to an embodiment of the present utility model, the joint connection part is clamped and connected with the filter housing.

According to an embodiment of the present utility model, the joint is a one-piece molding.

The water purifier according to the embodiment of the second aspect of the utility model includes the filter element assembly described in the above embodiment.

Additional aspects and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

Fig. 1 is a schematic structural view of a filter element assembly according to an embodiment of the present invention;

Fig. 2 is an enlarged view of part A shown in Fig. 1;

Fig. 3 is a bottom view of a joint of a filter element assembly according to an embodiment of the present invention;

Fig. 4 is a sectional view along the line B-B in Fig. 3;

Fig. 5 is another schematic structural view of the filter element assembly according to the embodiment of the present invention.

Reference signs:

100: filter element assembly;

10: filter housing; 10a: filter chamber; 11: filter housing support ribs;

20: Connector;

21: groove; 22: main body; 23: joint connection;

24: Water separation column; 241: Installation steps; 25: Ring transition part;

30: cover;

31: joint pipe; 32: support plate; 33: first partition; 34: second partition; 35: support rib;

40: filter element;

50: central tube;

60: waterproof rubber pad;

70: limit core head;

80: sealing ring.

detailed description

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the figures are exemplary and are intended to explain the present invention, but should not be construed as limiting the present invention.

The filter element assembly 100 according to the embodiment of the first aspect of the present utility model will be described in detail below with reference to FIGS. 1 to 5 .

The filter element assembly 100 according to the embodiment of the present utility model includes a filter housing 10 , a joint 20 , a cover 30 , a filter element 40 , and a central tube 50 . Specifically, a filter cavity 10a is defined in the filter housing 10, a main body 22, a joint connecting portion 23, and a water separation column 24 are provided on the joint 20, and the joint connecting portion 23 is arranged on the upper end of the main body 22 and connected to the filter housing 10, The water separation column 24 is connected to the main body 22 and at least a part is spaced apart from the inner wall of the main body 22. The joint 20 is provided with a water inlet and a water outlet communicating with the filter chamber 10a. In the cavity 10a, the filter element 40 is set in the filter cavity 10a and on the cover 30, and the central tube 50 is inserted into the joint tube 31 and communicated with the water outlet.

In other words, the filter element assembly 100 is mainly composed of a filter housing 10, a joint 20, a cover 30, a filter element 40, and a central tube 50, wherein the joint 20 is mainly composed of a main body 22, a joint connecting portion 23 and a water separation column 24, and the water separation column 24 The outer wall surface of the outer wall surface and the inner wall surface of the main body part 22 are arranged at intervals, thereby defining a water inlet passage leading to the water inlet between the outer wall surface of the water separation column 24 and the inner wall surface of the main body part 22, and the inside of the filter housing 10 defines a A filter chamber 10a with an open end, the joint 20 is arranged on the filter housing 10 and is connected with the open end of the filter housing 10 to close the opening of the filter chamber 10a, and the joint 20 extends vertically (up and down as shown in Figure 1 ) , one end of the joint 20 (the lower end as shown in Figure 1) has a water inlet and a water outlet connected to the filter cavity 10a, and the upper end of the joint connection part 23 of the joint 20 is directly connected with the filter housing 10, so that the joint 20 Not only can it play the role of sealing the filter cavity 10a of the filter element assembly 100, but also can realize the split flow between the raw water entering through the water inlet and the purified water flowing out through the water outlet. Compared with the filter element assembly in the related art, it saves the Parts such as the shunt, thereby effectively simplifying the overall structure of the filter element assembly 100, facilitating assembly, reducing manufacturing costs, and avoiding the situation of the water purifier switch that may be blocked by welding slag that may be generated when welding the shunt is connected, and improves the use. reliability.

Further, the cover 30, the filter element 40 and the central pipe 50 are located in the filter chamber 10a, the central pipe 50 is arranged at the central position of the filter chamber 10a, the central pipe 50 extends along the central axis of the filter housing 10, and the lower end of the central pipe 50 Inserted in the joint 20 and communicated with the water outlet on the joint 20, the upper end of the central pipe 50 can be supported by the filter element support rib 11 (as shown in Figure 5), thereby facilitating the flow of clean water through the central pipe 50, the filter element 40 is roughly Formed into a ring cylinder and arranged above the cover 30, the size and shape of the ring column filter element 40 correspond to the size and shape of the upper end of the cover 30, so that the filter element 40 can be matched with the cover 30, so that both The fixed connection between them can avoid the phenomenon of water stringing.

When the filter element assembly 100 is working, raw water enters the filter chamber 10a from the water inlet on the joint 20, passes through the outer side of the cover 30 to reach the filter element 40, continues to flow upward through the filtering effect of the filter element 40, and then filters again through the upper part of the filter element assembly 100 Finally, it enters the central pipe 50 through the upper end of the central pipe 50, flows along the central pipe 50 to reach the water outlet, and finally flows out of the filter element assembly 100 through the purified water filtered many times for users to use.

Thus, according to the filter element assembly 100 of the embodiment of the present utility model, the water inlet and the water outlet connected with the filter chamber 10a are respectively provided on the joint 20, and the joint 20 is directly arranged on the filter housing 10, so that the joint 20 not only It can play the role of sealing the filter cavity 10a of the filter element assembly 100, and can also realize the split flow between the raw water entering through the water inlet and the clean water flowing out through the water outlet. Compared with the filter element assembly in the related art, the split flow is omitted. components such as devices, thereby effectively simplifying the overall structure of the filter element assembly 100, facilitating assembly, reducing manufacturing costs, and avoiding the situation of the water purifier switch that may be blocked by welding slag that may be generated when welding the shunt, improving the reliability of use sex. Therefore, the filter element assembly 100 has a simple structure, convenient assembly, low manufacturing cost and high reliability.

In some specific embodiments of the present utility model, the cover 30 includes: a joint pipe 31, a support plate 32, a first partition 33, and a second partition 34, and the joint pipe 31 is formed to extend along the axial direction of the filter housing 10 Tubular, the outer end of the joint pipe 31 is connected to the joint 20, the support plate 32 is arranged on the outside of the inner end of the joint pipe 31 and extends outward along the radial direction of the filter housing 10, the first partition 33 and the second partition 34 are respectively provided On the support plate 32 and extending toward the inside of the filter housing 10, the first partition 33 and the second partition 34 are respectively formed into rings extending along the circumference of the filter housing 10, and the filter element 40 is arranged in the filter chamber 10a and snapped on between the first partition 33 and the second partition 34 .

Specifically, as shown in FIG. 2, the cover 30 is mainly composed of a joint pipe 31, a support plate 32, a first partition 33, and a second partition 34. The joint pipe 31 is arranged in a tubular shape along the axial extension of the filter housing 10. , the joint pipe 31 is passed through the inner side of the joint 20 and connected with the joint 20, the support plate 32 is arranged in the filter cavity 10a and adjacent to the inner end of the joint 20, and the support plate 32 extends outward in the radial direction of the filter housing 10 , the lower surface of the support plate 32 is connected to one end (upper end as shown in FIG. 2 ) of the joint pipe 31, and the upper surface of the support plate 32 is provided with a first partition 33 arranged at intervals along the radial direction of the support plate 32 and The second partition 34, that is, the first partition 33 and the second partition 34 are spaced apart in the radial direction of the support plate 32, specifically, the first partition 33 and the second partition 34 are respectively along the The circumferential extension is arranged in a ring, the first partition 33 is located on the outer periphery of the support plate 32 , and the second partition 34 is located on the inner side of the support plate 32 .

Further, the filter element 40 is roughly formed as a ring cylinder and is arranged in the filter chamber 10a. The inner diameter of the ring column filter element 40 is approximately equal to the radial dimension of the second partition 34, and the outer diameter of the ring column filter element 40 is the same as that of the first partition. 33 have substantially the same radial dimensions, so that the filter element 40 is clamped between the first partition 33 and the second partition 34 to realize the fixed connection of the filter element 40 and avoid the phenomenon of water stringing.

Advantageously, the filter element assembly 100 also includes a waterproof rubber pad 60 and a support rib 35. The waterproof rubber pad 60 is movably arranged on the joint pipe 31 to open and close the water inlet. Open the water inlet when water is in and close the water inlet when the water inlet does not enter the water, and the support rib 35 is located on the upper end surface of the support plate 32 .

Referring to Fig. 1 and Fig. 2, the water-stop rubber pad 60 extends along the axial direction (up and down as shown in Fig. Cooperating with the joint 20, the water inlet can be opened or automatically closed, thereby not only ensuring the water inlet of the filter element assembly 100, but also avoiding the potential safety hazard caused by the backflow of water through the water inlet when the water inlet stops.

Optionally, the cross-sectional shape of the support rib 35 can be formed as a triangle, the support rib 35 is located between the first partition 33 and the second partition 34, and the filter element 40 is clamped between the first partition 33 and the second partition 34, the lower end surface of the filter element 40 is in contact with the upper end surface of the support plate 32, the lower end surface of the filter element 40 stops against the support rib 35, and the top of the support rib 35 is embedded in the end surface of the filter element 40, which can ensure the support plate 32 and the filter element The tightness and connection reliability between 40 prevent water stringing in the filter element assembly 100 .

Wherein, the water outlet is arranged at the middle part of the joint 20 , and the water inlet is arranged at the outer periphery of the joint 20 .

Specifically, as shown in Figure 1, the water outlet is located in the middle of the joint 20, that is to say, the central axis of the water outlet coincides with the central axis of the joint 20, so as to facilitate the assembly and cooperation between the central pipe 50 and the joint 20. The water inlet is arranged on the outer periphery of the joint 20, so as to avoid interference with the joint pipe 31 and simplify the structure of the filter element assembly 100. Of course, the number of water inlets can be adjusted according to actual design requirements to ensure the filtration efficiency of the filter element assembly 100 and filtration uniformity.

Advantageously, the water outlet is arranged coaxially with the filter housing 10 and the central pipe 50, and the water inlet is arranged at both ends of the outer side of the water outlet.

Referring to Fig. 1, the water outlet is coaxially arranged with the filter housing 10 and the central pipe 50, that is, the central axes of the water outlet, the filter housing 10, and the central pipe 50 coincide, so that the joint 20, the central pipe 50, and the filter housing 10 can be simplified. In addition, it can simplify the pipeline layout of the central pipe 50, thereby improving the manufacturing efficiency of the filter element assembly 100, and setting the water inlet on both sides of the water outlet can ensure the water intake and filtration efficiency of the filtration process. uniformity, and avoid interference between the water inlet and the water outlet, further improving the reliability of the filter element assembly 100 .

In some embodiments of the present utility model, the joint 20 includes a main body 22, a joint connecting portion 23 and a water separation column 24. The main body 22 is roughly formed in a column shape, and the joint connecting portion 23 is arranged on the upper end of the main body 22 and is connected to the filter housing 10. Connected to each other, the water separation column 24 is roughly formed in a column shape located in the main body portion 22, the water separation column 24 is connected to the main body portion 22 and at least a part is spaced from the inner wall surface of the main body portion 22, and the junction of the water separation column 24 and the main body portion 22 is provided. There is a water inlet, and the outer wall surface of the water dividing column 24 is spaced from the inner wall surface of the main body 22 to define a water inlet channel connected with the water inlet. path.

Specifically, as shown in Figure 2, the joint 20 is mainly composed of a main body 22, a joint connection part 23 and a water separation column 24. The main body 22 is roughly formed as a cylindrical body extending in the axial direction. 23, the joint connection part 23 is connected with the filter housing 10, so that the main body part 22 is indirectly fixed on the lower end of the filter housing 10, and the water separation column 24 extends in the axial direction and is arranged in the joint connection part 23.

Advantageously, the water separation column 24 is arranged coaxially with the main body 22, and one end of the water separation column 24 (the lower end as shown in FIG. 2 ) is connected to the main body 22, and the outer wall surface of the water separation column 24 is spaced apart from the inner wall surface of the main body 22. , so that between the outer wall surface of the water-dividing column 24 and the inner wall surface of the main body 22, a water inlet passage leading to the water inlet is defined. A water inlet is provided, and the water outlet column 24 defines a water outlet channel connected to the water outlet at the lower end of the water column 24, so that the water inlet can The spacing arrangement between the water outlet, the water inlet channel and the water outlet channel ensures that the raw water entering the filter chamber 10a through the water inlet channel and the clean water flowing out of the filter chamber 10a through the water outlet channel are separated, effectively simplifying the filter element assembly 100 The overall structure, improve assembly efficiency.

Optionally, the lower end of the water separation column 24 extends downward beyond the lower end of the main body 22 to form a water outlet.

Specifically, as shown in Fig. 1 and Fig. 2, the water dividing column 24 is arranged coaxially with the main body portion 22 and protrudes downward from the main body portion 22 in the axial direction. The lower end inner ring of the main body part 22 is connected with the outer side wall of the water separation column 24, and the upper end of the main body part 22 is connected with the lower end of the joint connection part 23, thereby facilitating the filter element assembly 100 and the filter element socket (not shown), etc. Assembly connections between other components.

Wherein, the inner wall surface of the upper end of the water separation column 24 is provided with an installation step 241 extending along its circumference, and the lower end of the cover 30 is plugged on the installation step 241 .

Referring to Fig. 2, the inner wall surface of the upper end of the water separation column 24 is provided with an installation step 241 extending circumferentially along the water separation column 24, and the radial dimension of the inner wall surface of the water separation column 24 at the upper end of the installation step 241 is greater than or equal to the outer wall surface of the lower end of the cover 30 Radial dimension, the radial dimension of the inner wall surface of the water separation column 24 at the lower end of the installation step 241 is slightly greater than or equal to the outer diameter of the central pipe 50 inserted in the water outlet passage, so that the lower end of the cover 30 can be inserted on the installation step 241 Further, through the cooperation between the inner wall surface of the upper end of the water separation column 24 and the outer wall surface of the cover 30 and the cooperation between the inner wall surface of the lower end of the water separation column 24 and the outer wall surface of the central tube 50, the sealing effect is further enhanced to avoid water stringing .

In addition, the filter element assembly 100 also includes a limiting core head 70 and a sealing ring 80. An inwardly recessed groove 21 is provided on the inner wall of the joint 20. The limiting core head 70 is arranged in the joint 20 and at least a part of it extends into the groove 21. To press the sealing ring 80 into the groove 21 .

Specifically, as shown in FIGS. 1 and 2 , part of the inner wall surface of the joint 20 adjacent to the center pipe 50 is recessed in the radial direction, thereby defining a groove 21 with the outer wall of the center pipe 50, and the radial dimension of the groove 21 ( That is, the size between the outer wall surface of the central tube 50 and the inner wall surface of the joint 20 depression) is not greater than the size of the sealing ring 80, so that the sealing ring 80 can be fastened in the groove 21, and achieve a sealing effect, avoiding the central tube 50 There is a gap between the joint 20 and water string occurs.

The limiting core 70 roughly forms an inverted circular boss extending in the axial direction (up and down as shown in FIG. 1 ), and the outer diameter of the lower boss of the limiting core 70 is smaller than the upper protrusion of the limiting core 70 The outer diameter of the platform, the lower boss is roughly formed into a cylindrical structure, the radial dimension of the inner wall of the lower boss is greater than or equal to the outer diameter of the central tube 50, and the radial dimension of the outer wall of the lower boss is less than or equal to that of the joint 20 The radial dimension of the inner wall surface of the groove 21 .

When the filter housing 10 is assembled with the joint 20, the stop cover 30, the filter element 40, the central tube 50 and other components, the limit core head 70 is pushed by the joint tube 31 of the stop cover 30 and stops at the lower end surface of the upper boss. Butt against the inner wall surface of the joint 20 and adjacent to the groove 21, and the upper end surface touches the lower end surface of the joint pipe 31 of the cover 30, and then utilizes the cooperative action of the limiting core 70, the central tube 50, the joint 20 and the cover 30 , the sealing ring 80 is pressed into the groove 21, thereby further restricting the degree of freedom of the sealing ring 80 relative to the central tube 50, and the limiting core head 70 can also reduce the inner wall surface of the joint 20 and the central tube 50. The effect of the gap on the outer wall further avoids the possibility of water stringing.

Advantageously, the outer diameter of the main body 22 is smaller than the inner diameter of the filter housing 10 , and an annular transition portion 25 extending obliquely upward and outward is provided between the main body 22 and the joint connection portion 23 .

Specifically, as shown in Fig. 1 and Fig. 2, the radial dimension of the outer wall surface of the main body 22 is smaller than the radial dimension of the inner wall surface of the filter housing 10, the lower end of the annular transition portion 25 is connected with the upper end of the main body portion 22, and the annular transition portion The upper end of 25 is connected to the joint connection part 23, the filter housing 10 is clamped on the inner side of the joint connection part 23, and the annular transition part 25 extends upwards in the axial direction and outwards in the radial direction, so that the main body part 22 and The smooth transition between the joint connecting parts 23 improves the uniformity of the structure's stress, and also facilitates the assembly and cooperation between the joint 20 and the filter housing 10 .

Optionally, the joint connection part 23 is snap-connected with the filter housing 10 .

Referring to Fig. 2, the joint connecting portion 23 is provided with a joint slot and a joint buckle extending in the axial direction, and the lower end of the filter housing 10 is provided with a filter housing buckle and a filter housing slot extending in the axial direction, thereby utilizing the joint The cooperation between the slot and the buckle of the filter housing, and between the buckle of the joint and the slot of the filter housing ensures the assembly reliability between the joint 20 and the filter housing 10 , and also simplifies the assembly process and improves the assembly efficiency.

Preferably, the joint 20 is an integrally formed part, thus, the integrally formed structure can not only ensure the structure and performance stability of the filter element assembly 100, but also facilitate molding and simple manufacture, and save redundant assembly parts and connection procedures, greatly The assembly efficiency of the filter element assembly 100 is improved, and the connection reliability of the filter element assembly 100 is ensured. Furthermore, the integrated structure has higher overall strength and stability, more convenient assembly, and a longer service life.

The water purifier (not shown) according to the embodiment of the second aspect of the utility model includes the filter element assembly 100 in the above-mentioned embodiment. The water purifier of the novel embodiment also has corresponding technical effects, that is, the water purifier has a simple structure, convenient assembly, low manufacturing cost, and high reliability.

Specifically, by respectively setting the water inlet and the water outlet connected with the filter chamber 10a on the joint 20 of the filter element assembly 100 of the water purifier, and directly setting the joint 20 on the filter housing 10, so that the joint 20 can not only play The function of sealing the filter cavity 10a of the filter element assembly 100 can also realize the split flow between the raw water entering through the water inlet and the purified water flowing out through the water outlet. Compared with the filter element assembly in the related art, parts such as a flow divider are omitted , thereby effectively simplifying the overall structure of the filter element assembly 100 of the water purifier, facilitating assembly, reducing manufacturing costs, and avoiding the situation of the water purifier switch that may be blocked by welding slag that may be generated when welding the shunt, and improving the quality of the water purifier. The reliability of the use of the device.

Other configurations and operations of the filter element assembly 100 according to the embodiment of the present invention and the water purifier having the same are known to those skilled in the art, and will not be described in detail here.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial" The orientation or positional relationship indicated by , "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying the referred device Or elements must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrated; it can be mechanically connected, or electrically connected, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components , unless expressly defined otherwise. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structures, materials or features are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and should not be construed as limitations of the present invention, and those skilled in the art are within the scope of the present invention. Variations, modifications, substitutions and variations can be made to the above-described embodiments.

Claims (10)

1. A filter element assembly, characterized in that, comprising: a filter housing, a filter cavity is defined in the filter housing; A joint, the joint is provided with a main body, a joint connection part and a water separation column, the joint connection part is arranged on the upper end of the main body and connected with the filter housing, the water separation column is connected with the main body and At least a part is spaced apart from the inner wall surface of the main body, and the joint is provided with a water inlet and a water outlet communicating with the filter cavity; a cover, the cover is arranged on the joint and is located in the filter chamber; a filter element, the filter element is arranged in the filter cavity and on the cover; A central pipe, the central pipe is inserted into the joint and communicated with the water outlet. 2. The filter element assembly according to claim 1, wherein the water outlet is arranged in the middle of the joint, and the water inlet is arranged in the outer periphery of the joint. 3 . The filter element assembly according to claim 2 , wherein the water outlet is arranged coaxially with the filter housing and the central pipe, and the water inlet is arranged at two outer ends of the water outlet. 4 . 4. The filter element assembly according to claim 1, characterized in that, the main body part is roughly formed in a column shape, the water separation column is roughly formed in a column shape provided in the main body part, and the water separation column and the main body part The connection of the water inlet is provided with the water inlet, the outer wall surface of the water separation column is spaced from the inner wall surface of the main body to define a water inlet passage communicating with the water inlet, and the water separation column defines the water inlet. The water outlet and the water outlet passage suitable for inserting the central pipe. 5. The filter element assembly according to claim 4, wherein the lower end of the water separation column extends downward beyond the lower end of the main body to form the water outlet. 6. The filter element assembly according to claim 4, characterized in that, the inner wall surface of the upper end of the water separation column is provided with a mounting step extending along its circumference, and the lower end of the cover is inserted into the mounting step . 7. The filter element assembly according to claim 4, wherein the outer diameter of the main body is smaller than the inner diameter of the filter housing, and an upward and outward An obliquely extending annular transition. 8 . The filter element assembly according to claim 4 , characterized in that, the joint connecting portion is clamped and connected with the filter housing. 9 . 9. The filter element assembly according to any one of claims 1-8, characterized in that, the joint is a one-piece molding. 10. A water purifier, characterized by comprising the filter element assembly according to any one of claims 1-9.