CN208785883U - Composite filter element and water treatment facilities with it - Google Patents

Abstract

The utility model discloses a kind of composite filter element and with its water treatment facilities, comprising: filter housing and filter cylinder define installation cavity in the filter housing；The filter cylinder is located in the installation cavity and forms the first filtering runner being mutually isolated and the second filtering runner with the filter housing, wherein, it is equipped in the filter cylinder for filter in the first filtering runner the first filtration members of fluid and for filter the second the second filtration members for filtering fluid in runner, second filtration members include at least two-stage filter material.Composite filter element according to the present utility model, filter effect is good, and simple and compact for structure, occupies little space.

Description

Composite filter element and water treatment facilities with it

Technical field

The utility model relates to technical field of water treatment equipment, more particularly, to a kind of composite filter element and with its Water treatment facilities.

Background technique

Water treatment facilities in the related technology are provided with multiple filter cores to improve filter effect, and multiple filter cores pass through pipe Road connection, is easy leak, and filter effect is bad, and pipe-line layout is complicated, and occupied space is big, and structure is not compact, leads to volume It is larger, it is not easy to dismount.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model mentions A kind of composite filter element out, the composite filter element is simple and compact for structure, and filter effect is good, occupies little space.

The invention also discloses a kind of water treatment facilities with above-mentioned composite filter element.

Composite filter element according to the present utility model, comprising: filter housing and filter cylinder define installation cavity in the filter housing；It is described Filter cylinder is located in the installation cavity and is formed with the filter housing the first filtering runner being mutually isolated and the second filtering runner, In, it is equipped in the filter cylinder for filtering the first filtration members of fluid in the first filtering runner and being used to filter the second filtering stream Second filtration members of fluid in road, second filtration members include at least two-stage filter material.

Composite filter element according to the present utility model, filter effect is good, and simple and compact for structure, occupies little space.

In addition, composite filter element according to the present utility model can also have the following additional technical features:

According to some embodiments of the utility model, the filter cylinder includes: first filtration members and second filtration members Axially spaced-apart along the filter cylinder is arranged.

According to some embodiments of the utility model, the filter cylinder further include: middle separate disk, the middle separate disk are located at the filter cylinder Interior and be the first filter chamber and the second filter chamber along the axially spaced of the filter cylinder by the cartridge interior, first filtration members are set to In first filter chamber, second filtration members are set in second filter chamber.

Optionally, second filtration members include:

First order filter material, the first order filter material are mounted in second filter chamber and are located at the second filtering runner It is interior；

Second level filter material, the second level filter material are mounted in second filter chamber and are located at the second filtering runner Interior, the second level filter material is set between the middle separate disk and the first order filter material.

Optionally, second filtration members further include: isolation board, the isolation board be set to the first order filter material with it is described The first order filter material to be spaced apart with the second level filter material between the filter material of the second level.

Optionally, second filtration members are spaced apart with the filter cylinder to form filter material and crosses water flow passage, the filter cylinder with it is described Filter housing is spaced apart and formed water space, is formed in the first order filter material and the first filter material water crossing water space and being connected to Road.

Further, the filter cylinder has bottom cover, and the bottom cover is equipped with bottom cover and crosses the mouth of a river, and the first filter material water channel is logical Cross the bottom cover cross the mouth of a river with it is described cross water space be connected to.

Optionally, the middle separate disk, which is equipped with, crosses the mouth of a river, the composite filter element every disk further include: central tube, the center Pipe is set in first filter chamber and one end is connected to the middle separate disk, and the other end of the central tube passes through the filter cylinder, institute It states and is formed with mutually isolated with first filter chamber in central tube and crosses the mouth of a river by described with second filter chamber every disk and be connected to The first pipe water passage, be equipped in the second level filter material and cross the second filter material water channel that the mouth of a river is connected to every disk with described.

Optionally, the second level filter material is located at the downstream of the first order filter material.

Some embodiments according to the present utility model, the first order filter material is formed as hollow tubular and both ends are stopped respectively Be butted on the filter cylinder and the isolation board, the second level filter material is formed as hollow tubular and both ends be only butted on respectively it is described every From plate and the middle separate disk.

Some embodiments according to the present utility model, the first order filter material are active carbon, and the second level filter material is PP Cotton.

Optionally, first filtration members are for PAC filter core and including in PP cotton, activated carbon fibre, PP cotton Compound filtering material It is at least one.

Water treatment facilities according to the present utility model, including plate of water route and filter core, the plate of water route are connected equipped with filter core Seat；The filter core is above-mentioned composite filter element, and the composite filter element is removably attachable to the filter core connecting seat.

Water treatment facilities according to the present utility model can promote filter effect, reduce by the way that above-mentioned composite filter element is arranged Volume meets more installation requirements.

The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description In become obvious, or recognized by the practice of the utility model.

Detailed description of the invention

The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will Become obvious and be readily appreciated that, in which:

Fig. 1 is the perspective view according to the element kit of the utility model embodiment；

Fig. 2 is the explosive view according to the element kit of the utility model embodiment；

Fig. 3 is the main view according to the element kit of the utility model embodiment；

Fig. 4 is the cross-sectional view according to the element kit of the utility model one embodiment；

Fig. 5 is the enlarged drawing in the portion A that Fig. 4 centre circle shows；

Fig. 6 is according to the cross-sectional view of the composite filter element of the utility model one embodiment；

Fig. 7 is the enlarged drawing for the B that Fig. 6 centre circle shows；

Fig. 8 is the enlarged drawing for the C that Fig. 6 centre circle shows；

Fig. 9 is the enlarged drawing for the D that Fig. 6 centre circle shows；

Figure 10 is the perspective view according to the plate of water route of the utility model embodiment；

Figure 11 is the side view of the plate of water route in Figure 10；

Figure 12 is the bottom view of the plate of water route in Figure 10；

Figure 13 is the cross-sectional view of the plate of water route in Figure 10；

Figure 14 is the perspective view of filter housing in the composite filter element according to the utility model embodiment；

Figure 15 is the bottom view of the filter housing in Figure 14；

Figure 16 is the side view of the filter housing in Figure 14；

Figure 17 is the cross-sectional view of the E-E line along Figure 16；

Figure 18 is the enlarged drawing in the portion F that Figure 17 centre circle shows；

Figure 19 is the perspective view of the first filter cylinder in the composite filter element according to the utility model embodiment；

Figure 20 is the top view of the first filter cylinder in Figure 19；

Figure 21 is the side view of the first filter cylinder in composite filter element；

Figure 22 is the cross-sectional view of the G-G line along Figure 21；

Figure 23 is the perspective view of top cover in the composite filter element according to the utility model embodiment；

Figure 24 is the top view of the top cover in Figure 23；

Figure 25 is the side view of the top cover in Figure 23；

Figure 26 is the perspective view of the second filter cylinder in the composite filter element according to some embodiments of the utility model；

Figure 27 is the side view of the second filter cylinder in Figure 26；

Figure 28 is the top view of the second filter core in Figure 26；

The cross-sectional view of Figure 29 H-H line extremely along Figure 28；

Figure 30 is the enlarged drawing in the portion I that Figure 29 centre circle shows；

Figure 31 is the cross-sectional view of the second filter cylinder in the composite filter element according to other embodiments of the utility model；

Figure 32 is the perspective view of bottom cover in the composite filter element according to the utility model embodiment；

Figure 33 is the side view of the bottom cover in Figure 32；

Figure 34 is the top view of the bottom cover in Figure 32；

Figure 35 is the cross-sectional view of the J-J line along Figure 34；

Figure 36 is the perspective view according to the middle partition of the composite filter element of the utility model embodiment；

Figure 37 is the side view of the middle partition in Figure 36；

Figure 38 is the top view of the middle partition of composite filter element；

Figure 39 is the cross-sectional view of the K-K line along Figure 38；

Figure 40 is the perspective view according to the central tube of the composite filter element of the utility model embodiment；

Figure 41 is the side view of the central tube in Figure 40；

Figure 42 is the top view of the central tube of composite filter element；

Figure 43 is the cross-sectional view of the L-L line along Figure 42；

Figure 44 is the perspective view of the central tube in the composite filter element according to some embodiments of the utility model；

Figure 45 is the cross-sectional view of the central tube in Figure 44；

Figure 46 is the perspective view of the central tube in the composite filter element according to some embodiments of the utility model；

Figure 47 is the cross-sectional view of the central tube in Figure 46；

Figure 48 is the perspective view of the central tube in the composite filter element according to some embodiments of the utility model；

Figure 49 is the cross-sectional view of the central tube in Figure 48；

Figure 50 is the perspective view of the central tube in the composite filter element according to some embodiments of the utility model；

Figure 51 is the cross-sectional view of the central tube in Figure 50；

Figure 52 is the perspective view according to the first filter cylinder of the composite filter element of the utility model embodiment；

Figure 53 is the main view of the first filter cylinder in Figure 52；

Figure 54 is the top view of the first filter cylinder in Figure 52；

Figure 55 is the perspective view according to the first filter cylinder of the composite filter element of the utility model embodiment；

Figure 56 is the main view of the first filter cylinder in Figure 55；

Figure 57 is the top view of the first filter cylinder in Figure 55；

Figure 58 is the perspective view according to the filter assemblies of some embodiments of the utility model；

Figure 59 is the perspective view side view according to the filter assemblies of some embodiments of the utility model；

Figure 60 is the cross-sectional view of the filter assemblies in Figure 59；

Figure 61 is the explosive view of the filter assemblies in Figure 59；

Figure 62 is the cross-sectional view according to the part-structure of the composite filter element of the utility model embodiment, wherein the first filter cylinder It is integrally formed with middle separate disk；

Figure 63 is the cross-sectional view according to the composite filter element of some embodiments of the utility model, wherein the first filter cylinder and interval Disk is integrally formed；

Figure 64 is the cross-sectional view of the top cover of Figure 63, wherein the first filter cylinder is mating at arrow；

Figure 65 is the cross-sectional view of part-structure in the composite filter element according to some embodiments of the utility model, wherein center Pipe is integrally formed with middle separate disk；

Figure 66 is the cross-sectional view of part-structure in the composite filter element according to some embodiments of the utility model, wherein center Pipe is integrally formed with top cover.

Appended drawing reference:

1000: element kit；

100: composite filter element；200: the second filter cores；

1: filter housing；10: installation cavity；10a: water space is crossed；10a1: the first crosses water space；10a2: the second crosses water space；

11: shell ontology；111: body；112: shell bottom；12: dowel；121: the first dowels；122: the second dowels；

2: filter cylinder:

21: the first filter cylinders；210: the first filter chambers；211: cylinder ontology；212: interconnecting piece；213: mounting portion；214: supporting element； 215；Auxiliary section；2151: fabrication hole；

2131: sealing tank；214a: supporting rib；214b supporting table group；2141: sub- supporting table；

22: the second filter cylinders；220: the second filter chambers；221: the first cylinders；2210: the first wound packages chambers；222: the second cylinders； 2220: the second wound packages chambers；223: connector drum；2230: connecting cylinder is behave affectedly；224: rib；2241: muscle ontology；2242: muscle connection Portion；

3: middle separate disk；30: every disk water hole；31: every disk ontology；32: every disk interconnecting piece；321: sealed groove；33: ring Shape sealing element；311: locating support table；312: positioning bar；

4: the first filtration members；40: filtration channel；

5: the second filtration members；51: first order filter material；52: second level filter material；53: isolation board；

510: the first filter material water channels；520: the second filter material water channels；

6: central tube；60a: the first pipe water passage；60b: the second pipe water passage；

61: tube body；611: holding tank；62: baffle；621: gear ontology；622: guide part；

7: top cover；70: top cover crosses water flow passage 70；71: crossing water pipe；72: sliding slot；73: limiting section；74: top cover support muscle；

721: the first extended segments；7211: support level；722: the second extended segments；

8: bottom cover；80: bottom cover water hole；81: bottom cover ontology；82: lid interconnecting piece；

821: first connecting portion；822: second connecting portion；823: installation groove；

300: plate of water route；301: plate ontology；302: water channel；3011: the first attachment bases；3012: the second attachment bases；3013: Ring packing muscle；3011a: the first water hole；3012a: the second water hole.

Specific embodiment

The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model Limitation.

In the description of the present invention, it should be understood that term " center ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " axial direction ", " radial direction ", The orientation or positional relationship of instructions such as " circumferential directions " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description originally Utility model and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific Orientation construction and operation, therefore should not be understood as limiting the present invention.In addition, defining " first ", " second " Feature can explicitly or implicitly include one or more of the features.In the description of the present invention, unless otherwise Illustrate, the meaning of " plurality " is two or more.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection；It can be directly connected, two elements can also be can be indirectly connected through an intermediary Internal connection.For the ordinary skill in the art, above-mentioned term can be understood in the utility model with concrete condition In concrete meaning.

The element kit 1000 according to the utility model one embodiment, the element kit are described in detail with reference to the accompanying drawing 1000 can be used for the water treatment facilities such as water purifier, water dispenser, purifying drinking appliance, but not limited to this.In the application, for ease of description and Understand, up and down direction, left and right directions and front-rear direction respectively by taking the up and down direction of diagram, left and right directions and front-rear direction as an example into Row explanation.

It as Figure 1-Figure 5, include plate of water route 300, the according to the element kit 1000 of the utility model one embodiment One filter core (for example, composite filter element 100 of diagram) and the second filter core 200, the first filter core and the second filter core 200 can be the water flowed through It is filtered processing, to export filtered water purification, promotes water quality.

Plate of water route 300 is equipped with the first attachment base 3011 and the second attachment base 3012, and the first filter core is removably mounted to the A connecting seat 3011, the second filter core 200 is removably installed in the second attachment base 3012, simple and compact for structure, and can be square Just it will be replaced and be repaired to being removed on filter core and the second filter core 200 by water plate 300, dismounting difficulty is low, maintenance maintenance It is at low cost.

At least one of first filter core and the second filter core 200 are composite filter element, and composite filter element can be practical according to this The composite filter element 100 of new embodiment.So-called composite filter element makes to refer to the filter structure for being integrated with multiple common filter cores, Ke Yishi The filter core of existing a variety of filtering functions.That is, the first filter core can be the composite filter element 100 for being integrated with multiple common filter cores, Alternatively, the second filter core can be the composite filter element 100 for being integrated with multiple common filter cores, then alternatively, the first filter core and the second filter core 200 can be respectively set to be integrated with the composite filter element 100 of multiple common filter cores simultaneously.

Thus, it is possible to extend the filtering function of element kit 1000, the filtration yield of filter assemblies is increased, improves filtering Efficiency, and it is compact-sized, it occupies little space, is conducive to space layout, can satisfy more installation requirements.

The plate of water route 300 of element kit 1000 is described first below.

As shown in Figure 10-Figure 13, according to the plate of water route 300 for element kit 1000 of the utility model embodiment, packet Integrally formed plate ontology 301 is included, plate ontology 301 is equipped with the first attachment base 3011 for being adapted to the first filter core and is suitable for Connect the second attachment base 3012 of the second filter core 200.

First attachment base 3011 is spaced apart with the second attachment base 3012, to reserve the peace of the first filter core and the second filter core 200 Dress allows bit space, avoids interfering.Second attachment base 3012 and the second attachment base 3012 are set to the thickness direction of plate ontology 301 The same side, the first filter core and the second filter core 200 can be mounted on to the same side of plate ontology 301.For example, in the example of diagram In, plate of water route 300 is horizontally disposed, and the first attachment base 3011 and the second attachment base 3012 are set to the downside of plate ontology 301, so as to It is compact-sized the first filter core and the second filter core 200 to be mounted on to the downside of plate ontology 301 side by side, it is conveniently replaceable the first filter core With the second filter core 200, and be conducive to reduce element kit 1000 height dimension.

Plate ontology 301 has at least three water channels 302, each water channel 302 has the mouth of a river for being adapted to pipeline, at least Three water channels 302 are connected with one in the first filter core and the second filter core 200 respectively, are used for the first filter core and the second filter core 200 inputs water to be filtered, and will be exported through the first filter core and the filtered water purification of the second filter core 200.Wherein, at least three water Road 302 extends towards the same side of plate of water route 300, i.e., at least three water channels 302 are set side by side.External pipeline can be with as a result, Multiple water channels 302 are connected in the same side of plate ontology 301, it is easy to connect, it is high-efficient, and towards the same side of plate of water route 300 The water channel 302 of extension can simplify structure, optimize appearance.

For example, there are four water channel 302, each water channel 302 has the tool of plate ontology 301 in the example of sum as shown in Figure 10 The mouth of a river, the left side that four water channels 302 are respectively facing plate of water route 300 extend.Certainly, water channel 302 can with other quantity, for example, Five, six etc., at least three water channels 302 may include raw water road, water purification road and waste way etc., it should be noted that water channel 302 quantity is related with the type and connection type of the first filter core and the second filter core 200, this is for those skilled in the art For will be understood by, details are not described herein.

Some embodiments according to the present utility model, as shown in Figure 10-Figure 13, the first attachment base 3011 and the second attachment base 3012 can be arranged along the length direction interval of plate ontology 301, and the first filter core is composite filter element 100, and at least three water channels 302 can Extend respectively along the length direction of plate ontology 301, and one end of the close composite filter element 100 of each water channel 302 is equipped with water Mouthful.For example, the length direction of plate ontology 301 is the left and right directions of diagram, 3012 edge of the first attachment base 3011 and the second attachment base The setting of left and right directions interval, the first attachment base 3011 are located at 3012 left side of the second attachment base, and composite filter element 100 is connected to the first company Joint chair 3011 and the left side for being located at the second filter core 200, at least three water channels 302 are respectively facing composite filter element 100 to plate ontology 301 left side extends, and the left end of each water channel 302 is equipped with the mouth of a river, and external pipeline is connected to the mouth of a river respectively.In this way, can incite somebody to action The mouth of a river is located at the same side of plate of water route 300, the mouth of a river can be arranged adjacent to composite filter element 100, convenient to connect with external road, and And the internal water channel 302 of plate ontology 301 is simple, structure design is easier.

In some embodiments, at least three water channels 302 can be arranged along the width direction of plate ontology 301, shown in Figure 10 Example in, water channel 302 arranges along the longitudinal direction, compact-sized, and convenient for connection exterior line, aesthetics is more preferably.

Optionally, the diameter D at each mouth of a river can satisfy: 5mm≤D≤30mm, that is to say, that the diameter D at each mouth of a river The arbitrary value between 5mm-30mm can be chosen.For example, the diameter at each mouth of a river can be with 5mm, 10mm, 25m or 30mm etc..It is more The diameter at a mouth of a river can be identical, to connect the exterior line of same diameter, alternatively, the diameter at multiple mouths of a river can be different, with Adapt to the Inlet and outlet water demand at the different mouths of a river.

It can lead between first filter core and the first attachment base 3011 and between the second filter core 200 and the second attachment base 3012 The realization of the structures such as screw thread or buckle is crossed to be detachably connected.

For example, in some embodiments, can be equipped with as shown in Figure 10, Figure 11 and Figure 13, on plate ontology 301 first annular Flange and with spaced second annular flange of first annular flange, first annular flange and the second annular flange are respectively formed For the first attachment base 3011 and the second attachment base 3012, the first filter core and the second filter core 200 are respectively at first annular flange and Second ring flange is connected.

Optionally, the first outer spiral shell for being suitable for being threadedly coupled with the first filter core can be equipped on the outer peripheral surface of first annular flange Line, the outer peripheral surface of the second annular flange are equipped with the second external screw thread for being suitable for being threadedly coupled with the second filter core 200.As a result, first Filter core, which is threadedly engaged, is connected to first annular flange, and the second filter core 200 is connected to the second annular flange by being threadedly engaged.

In further embodiments, plate ontology 301 be equipped with first annular groove (not shown) and with it is first annular The spaced second annular groove (not shown) of groove, first annular groove and second annular groove are respectively formed as A connecting seat 3011 and the second attachment base 3012, first annular groove are connected with the first filter core, second annular groove and the second filter Core 200 is connected.

Optionally, the inner surface of first annular groove can be equipped with the first internal screw thread for being suitable for being threadedly coupled with the first filter core, The inner surface of second annular groove can be equipped with the second internal screw thread for being suitable for being threadedly coupled with the second filter core 200.First filter core as a result, It is threadedly engaged in first annular groove, the second filter core 200 is threadedly connected to second annular groove.

The structure of plate of water route 300 is simple as a result, facilitates processing, and the first filter core and the second filter core 200 are matched by screw thread Conjunction is connected to plate ontology 301, convenient for disassembly and assembly laborsaving, is conducive to control maintenance maintenance cost.

Some embodiments according to the present utility model, as shown in Figure 12 and Figure 13, the first attachment base 3011 and the second connection At least two ring packing muscle 3013, the ring packing muscle in the first attachment base 3011 can be equipped in each of seat 3012 3013 are suitable for being tightly connected the first filter core, and the ring packing muscle 3013 in the second attachment base 3012 is suitable for being tightly connected the second filter core 200, to guarantee the mutual non-series-water of each water channel 302.In first attachment base 3011, it is equipped between two adjacent ring packing muscle 3013 At least one first water hole 3011a inputs water to be filtered to the first filter core to be connected to water channel 302 and the first filter core；Second In attachment base 3012, at least one second water hole 3012a is equipped between two adjacent ring packing muscle 3013, to be connected to water Road 302 and the second filter core 200 input water to be filtered to the second filter core 200, and export and complete filtered water purification.

Optionally, at least two ring packing muscle, 3013 arranged concentric in the first attachment base 3011, the second attachment base At least two ring packing muscle, 3013 arranged concentric in 3012.It is compact-sized as a result, it is rationally distributed, and can optimize close Sealing property improves reliability.

For example, setting the ring packing there are three arranged concentric in the first attachment base 3011 in example as shown in fig. 13 that Muscle 3013, wherein it is located at an innermost ring packing muscle 3013 around a first water hole 3011a, adjacent two A first water hole 3011a, and a ring packing muscle 3013 on the outermost side are equipped between ring packing muscle 3013 A first water hole 3011a is equipped between the inner wall of the first attachment base 3011；Similarly, it is set in the second attachment base 3012 There are three ring packing muscle 3013, are located at an innermost ring packing muscle 3013 around a second water hole 3012a, phase A second water hole 3012a is equipped between two adjacent ring packing muscle 3013, and an annular on the outermost side is close It seals and is equipped with a second water hole 3012a between muscle 3013 and the inner wall of the second attachment base 3012.

In short, the plate of water route 300 for element kit 1000 of root play the utility model embodiment, structure is simply tight It gathering, aesthetics is good, and occupies little space, and is conducive to rational deployment, and it is convenient for disassembly and assembly laborsaving, it can satisfy more installation requirements.

The structure of composite filter element 100 in element kit 1000 is described in detail below.

In conjunction with shown in Fig. 4 and Fig. 6, the composite filter element 100 according to the utility model embodiment includes: filter housing 1 and filter cylinder 2, Installation cavity 10 is defined in filter housing 1, filter cylinder 2 is located in installation cavity 10, and filter cylinder 2 can form mutually isolated with filter housing 1 One filtering runner and the second filtering runner, wherein be equipped in filter cylinder 2 for filtering the first filtering circulated in the first filtering runner Part 4 and the second filtration members 5 for filtering fluid in the second filtering runner, the second filtration members 5 include at least two-stage filter material.

That is, being equipped with mutually disconnected first filtering runner and the second filtering runner, the first mistake in composite filter element 100 Fluid in filter runner can be filtered by the first filtration members 4, and the fluid in the second filtering runner can pass through the second mistake Filter part 5 is filtered, and the filter process in the first filtering runner and the filter process in the second filtering runner are mutually indepedent, mutually not It influences.Wherein, the second filtration members 5 include the filter material of two-stage or two-stage or more.

For example, second filtration members 5 include first order filter material 51 and second level filter material in Fig. 4 and example shown in fig. 6 52, first order filter material 51 and second level filter material 52 are arranged along the flow direction of water flow, with to the fluid in the second filtering runner into Row double-filtration.Certainly, the utility model is without being limited thereto, and the second filtration members 5 may include the filter material of three-level or three-level or more, example Such as, level Four, Pyatyi etc..

The first filtering runner being mutually isolated and the second filtering runner are formed using filter cylinder 2 and filter housing 1, it can be in composite filter Mutually independent two filter process are carried out simultaneously in core 100, moreover, setting the second filtration members 5 to include at least two-stage filter Material, is not only simple in structure compact, reduces occupied space, and can promote filter effect.

In one embodiment as Figure 1-Figure 5, composite filter element 100 include: plate of water route 300, filter housing 1, filter cylinder 2, in Every disk 3, the first filtration members 4, the second filtration members 5 and central tube 6.

Plate of water route 300 is equipped with filter core connecting seat (for example, first attachment base 3011 of diagram), and filter housing 1 is connected to installation Seat, to realize fixation, defines installation cavity 10, filter cylinder 2, the first filtration members 4, second filtration members 5 etc. can be installed in filter housing 1 In installation cavity 10.

Filter cylinder 2 is installed in installation cavity 10, and filter chamber is defined in filter cylinder 2, outside wall surface and the filter housing 1 of filter cylinder 2 Inner wall is spaced apart and formed water space 10a.Middle separate disk 3 is located in filter cylinder 2, and middle separate disk 3 is connected with the sealing of filter cylinder 2, with Filter chamber is divided into the first filter chamber 210 of neighbouring plate of water route 300 and far from the second filter chamber 220 of plate of water route 300, in conjunction with Fig. 4, Shown in Fig. 5 and Fig. 6, middle separate disk 3 be equipped with connection the first filter chamber 210 and the second filter chamber 220 every disk water hole 30.

As shown in Figure 4 and Figure 5, the first filtration members 4 are mounted in the first filter chamber 210, and are formed in the first filtration members 4 Filtration channel 40.Second filtration members 5 are mounted in the second filter chamber 220.First filtration members 4 and the second filtration members 5 are respectively to flow through Water be filtered processing, retain impurity, microorganism and bacterium therein, go water removal in peculiar smell, output promoted water quality after Water purification.

Central tube 6 may be provided in the filtration channel 40 in the first filtration members 4, and central tube 6 is connected to middle separate disk 3, in It is formed with the first pipe water passage 60a in heart pipe 6, the second pipe water passage is formed between central tube 6 and the first filtration members 4 60b。

Wherein, water space 10a is crossed, the second filter chamber 220 crosses water flow passage channel 60a with the first pipe and is connected to form the first filtering stream Road, the first filter chamber 210 are connected to form the second filtering runner with the second pipe water passage 60b, the first filtering runner and the second filtering Runner is mutually isolated, that is to say, that the first filtering runner and the second filtering runner are not connected to, independently of each other.

It is understood that the first filtration members 4 are located in the first filtering runner, the water for flowing through the first filtering runner is carried out Filtration treatment, the second filtration members 5 are located in the second filtering runner, are filtered to the water for flowing through the second filtering runner, two mistakes It filters Cheng Duli to carry out, be independent of each other.

In this way, the filter process that the filter process and second in the first filtering runner filter in runner can carry out simultaneously, When the first filtration members 4 and the second filtration members 5 are the filtration members of type of the same race, it can effectively increase filtration yield, promote composite filter The filter efficiency of core 100；And when the first filtration members 4 and the second filtration members 5 are different types of filtration members, the first filtering runner With the filter process that can carry out different filtering functions in the second filtering runner simultaneously.

User can be selected on demand through one or two of the first filtering runner and the second filtering runner pair as a result, Water is filtered, and suitability is good, can meet a variety of different demands, and integrally disposed so that simple and compact for structure, occupied space It is small, it is conducive to space layout.

Combine Figure 14-Figure 18 description according to the filter housing 1 of the composite filter element 100 of the utility model embodiment first below.

Filter housing 1 is removably attachable to filter core connecting seat, and in the example shown in the series of figures, filter housing 1 is connected to the first attachment base 3011, the inner peripheral surface of filter housing 1 is equipped with internal screw thread, and filter core connecting seat is equipped with the external screw thread of adaptation.In this way, working as composite filter element 100 After the interior filter material service life expires or damages, filter housing 1 can be removed, internal filter material is replaced, filter housing 1 can retain again It utilizes, environmental protection and saving can effectively reduce cost.

The filter housing 1 of some embodiments according to the present utility model, composite filter element 100 includes shell ontology 11 and dowel 12, Wherein, the open installation cavity 10 in top is defined in shell ontology 11, as exemplified in figs, shell ontology 11 includes 111 He of body It is located at the shell bottom 112 of 111 bottom of body, dowel 12 can integrally be set to shell bottom 112, and dowel 12 can be with body 111 It is connected.

The intensity of filter housing 1 can be effectively improved as a result, reduced the probability that filter housing 1 damages, prolonged the service life.

Some embodiments according to the present utility model, as shown in Figure 14-Figure 18, dowel 12 may include: the first connection Muscle 121, the first dowel 121 can be set to the side surface away from body 111 of shell, and the first dowel 121 can be along shell Bottom 112 radially extends, i.e. the outer surface that the first dowel 121 is located at shell bottom 112, the first dowel 121 radially with shell Body 111 is connected.So as to optimize the intensity at shell bottom 112 and shell bottom 112 and 111 junction of body, in addition, the first dowel 121 setting dismounts more convenient laborsaving convenient for carrying out gripping operation to filter housing 1.

In some embodiments, as shown in figure 15, the both ends of the first dowel 121 can be respectively with body 111 in radial direction Upper opposite two sidewalls are connected.In other words, the first dowel 121 radially connects the two sidewalls of body 111, i.e. the first dowel 121 are located at the diametrically opposite two sides that on the bottom surface at shell bottom 112 and both ends are separately connected body 111, and structure is simple, and connection can It leans on.

In further embodiments, the first dowel 121 is the multiple of the central axis arrangement around shell bottom 112.For example, In the example depicted in fig. 15, the first dowel 121 is three, three radially spaced settings of the first dowel 121, so as to To optimize bonding strength, reliability is improved.

Optionally, one end of multiple first dowels 121 is connected, and the other end and shell of multiple first dowels 121 Body 111 is connected, i.e. the first dowel 121 is set to shell bottom 112 and radially connects body 111.

Advantageously, multiple first dowels 121 can be evenly spaced on along the circumferential direction at shell bottom 112.As a result, filter housing 1 can It is further promoted by property, and the shape of filter housing 1 is more neat and artistic.

As exemplified in figs, body 111 and the round and smooth connection in shell bottom 112, and the first dowel 121 and body 111 Round and smooth connection is concentrated so as to reduce stress, and bonding strength is further promoted.

Some embodiments according to the present utility model, dowel 12 include: at least two second dowels 122, and at least two A second dowel 122 can be spaced the side surface towards body 111 for being provided with shell bottom 112, and at least two second Dowel 122 is radially extended along shell bottom 112.That is, at least two second dowels 122 are set to the interior table at shell bottom 112 Face, and at least two second the radially extending along shell bottom 112 of dowel 122, the setting of at least two dowels 12 interval.

In this way, filter housing 1 can be avoided to damage from the intensity inside stiffened shell bottom 112, extend the service life of filter housing 1.Separately Outside, spaced second dowel 122 can be conducive between forming water between the second dowel 122, shell bottom 112 and filter cylinder 2 Gap 10a, conducive to the arrangement of runner.

Optionally, as shown in figure 18, each second dowel 122 can be formed as L shape, and filter cylinder 2 can be supported on L shape The second dowel 122 on, the outer peripheral surface of filter cylinder 2 and bottom surface are only against on the second dowel 122 respectively, and stability is good, can be with Prevent filter cylinder 2 from misplacing, sealing reliability is also promoted.

Advantageously, the second dowel 122 is multiple, and multiple second dowels 122 uniformly divide along the circumferential of shell bottom 112 Cloth, so as to further increase stability and reliability.

As shown in Figure 17 and Figure 18, the inner end interval setting of multiple second dowels 122, can reduce water space 10a Interior mistake water resistance optimizes topology layout.

Optionally, the moulding that filter housing 1 can be integrally formed.In other words, body 111, shell bottom 112 and dowel 12 It can be with integrated injection molding.It is easy to process as a result, it is convenient to omit assembly process promotes assembly precision, is conducive to control cost.

Filter cylinder 2 is installed in the installation cavity 10 of filter housing 1, filter chamber, the outside wall surface and filter housing 1 of filter cylinder 2 are defined in filter cylinder 2 Inner wall be spaced apart and formed water space 10a, be equipped with middle separate disk 3 in filter cylinder 2, middle separate disk 3 filter chamber is divided into face it is neighbouring Second filter chamber 220 of the first filter chamber 210 of plate of water route 300 and separate plate of water route 300.

In an a little embodiments of the utility model, as shown in Figure 4 and Figure 6, filter cylinder 2 includes the first filter cylinder 21 and second Filter cylinder 22.Wherein, the first filter cylinder 21 is located in installation cavity 10, and the first filter cylinder 21 be installed on filter core connecting seat (that is, diagram First attachment base 3011), the first filter chamber 210 is defined in the first filter cylinder 21, and the first filtration members 4 are mounted on the first filter chamber 210 Interior, the outer peripheral surface of the first filter cylinder 21 is spaced apart to form the first mistake water space 10a1 with the inner peripheral surface of filter housing 1, and the second filter cylinder 22 is located at In installation cavity 10, optionally, the central axis of the first filter cylinder 21 is overlapped with the central axis of the second filter cylinder 22, i.e. the second filter cylinder 22 Positioned at axial one end (for example, lower end of diagram) of the first filter cylinder 21, structure is more compact.Second is defined in second filter cylinder 22 Filter chamber 220, the second filtration members 5 are mounted in the second filter chamber 220, the outside wall surface of the second filter chamber 220 and the inner wall face interval of filter housing 1 Open form crosses water space 10a2 at be connected to the first water space 10a1 excessively second, and first, which crosses water space 10a1 and second, crosses between water Gap 10a2 collectively forms above-mentioned water space 10a excessively.

It is described in detail below with reference to structure of Figure 19-Figure 22 to the first filter cylinder 21.

Some embodiments according to the present utility model, as shown in Figure 19 and Figure 21, the first filter cylinder 21 includes: an ontology 211, mounting portion 213 and multiple supporting elements 214.

It could be formed with the first filter chamber 210 in cylinder ontology 211, mounting portion 213 can be connected to cylinder sheet by interconnecting piece 212 Axial one end of body 211, and mounting portion 213 is installed on filter core connecting seat (that is, first attachment base 3011 of diagram), for example, Mounting portion 213 can protrude into filter core connecting seat and ring packing muscle 3013 cooperates, and mounting portion 213 is connected to the first filter chamber 210, with Water flow is allowed to flow in mounting portion 213 and cylinder ontology 211.

As shown in Figure 19-21, multiple supporting elements 214 can be set to the outer peripheral surface of cylinder ontology 211, and multiple supporting elements 214 being provided at circumferentially spaced along cylinder ontology 211, each supporting element 214 can extending radially outwardly along cylinder ontology 211.Also It is to say, the outer peripheral surface of cylinder ontology 211 is equipped with multiple supporting elements 214 of circumferentially spaced setting, and multiple supporting elements 214 are distinguished Central axis far from cylinder ontology 211 extends.

Multiple supporting elements 214 can only be butted on the inner peripheral surface of filter housing 1, so as in the inner peripheral surface of filter housing 1, cylinder ontology First is formed between 211 outer peripheral surface and two adjacent supporting elements 214 and crosses water space 10a1, and the first filter cylinder not only can be improved 21 intensity avoids the first filter cylinder 21 from damaging, and is conducive to guarantee the concentricity of the first filter cylinder 21 and filter housing 1, crosses water fluency It is good, seal reliable and stable, antileaking.

Optionally, as shown in figure 21, the central axis of mounting portion 213 can be overlapped with the central axis of cylinder ontology 211, i.e., Mounting portion 213 is set to axial one end of cylinder ontology 211.

As shown in figure 21 and figure, interconnecting piece 212 can along cylinder ontology 211 circumferential direction and radially extend, interconnecting piece 212 Outer end can connecting cylinder ontology 211, and the inner end of interconnecting piece 212 can connect mounting portion 213.Thus, it is possible to pass through interconnecting piece 212 Logical ontology is connected with mounting portion 213, it is simple and compact for structure.

In some embodiments, multiple supporting elements 214 may include: multiple supporting rib 214a, and multiple supporting rib 214a can edge The circumferentially-spaced outer peripheral surface for being opened in an ontology 211 of cylinder ontology 211, each supporting rib 214a can be along the axial direction of cylinder ontology 211 Extend.Thus, it is possible to which composition is prolonged along the axial direction of cylinder ontology 211 between the outer peripheral surface of cylinder ontology 211 and the inner peripheral surface of filter housing 1 First stretched crosses water space 10a1, and good reliability can effectively improve the concentricity of the first filter cylinder 21 and filter housing 1.

Optionally, as shown in figure 20, multiple supporting rib 214a can be arranged along the circumferential uniform intervals of cylinder ontology 211, thus First water space 10a1 excessively can be uniformly distributed in the outer peripheral surface of an ontology 211, water resistance excessively is small, and filter effect is good, and And the shape of the first filter cylinder 21 can be made neat and artistic, improve intensity.

Optionally, as shown in Figure 19 and Figure 21, each supporting rib 214a can extend from an axial end face for cylinder ontology 211 To the axial other end of cylinder ontology 211.In the example shown in the series of figures, the central axis of the first filter cylinder 21 orients along the vertical direction, Each supporting rib 214a extends to the upper surface of an ontology 211 from the lower end surface of cylinder ontology 211.Structure is simple, easy to process, benefit In control cost.

In other embodiments, multiple supporting elements 214 may include: at least one set of supporting table group 214b, every group of supporting table Group 214b includes multiple sub- supporting tables 2141, and multiple sub- supporting tables 2141 in every group of supporting table group 214b are set to cylinder ontology 211 Outer peripheral surface and along the circumferential array of cylinder ontology 211, every sub- supporting table 2141 can be along the circumferentially extending of cylinder ontology 211.For example, In example as shown in figure 21, multiple supporting elements 214 include that one group of supporting table group 214b, one group of supporting table group 214b include six A sub- supporting table 2141, six sub- supporting tables 2141 are located on the outer peripheral surface of an ontology 211, and along the circumferential direction of cylinder ontology 211 Arrangement, circumferentially extending of the every sub- supporting table 2141 along cylinder ontology 211.The outer end of every sub- supporting table 2141 can stop as a result, Inner peripheral surface to filter housing 1 passes through two adjacent sub- supporting tables between the outer peripheral surface of cylinder ontology 211 and the inner peripheral surface of filter housing 1 What 2141 formation can be run water through crosses water space 10a, more well water.

Optionally, supporting table group 214b can be multiple groups, and multiple groups supporting table group 214b can be along the axial direction of cylinder ontology 211 Interval setting, stops the inner peripheral surface for supporting filter housing 1 so as to multiple positions in the axial direction of cylinder ontology 211, and then can be into one Step guarantees the concentricity of cylinder ontology 211 and filter housing 1, and Assembly stability and sealing reliability are more preferably.

Optionally, the cross section of every sub- supporting table 2141 is rectangle, and intensity is high, and convenient processing and manufacture, is conducive to control This is made.

In further embodiments, as shown in Figure 19-21, multiple supporting elements 214 may include: multiple supporting ribs 214a and multiple sub- supporting tables 2141.Wherein, multiple supporting rib 214a are set to the outer peripheral surface of cylinder ontology 211 and along cylinder ontologies 211 Be provided at circumferentially spaced, each supporting rib 214a can be along the axially extending of cylinder ontology 211, and every sub- supporting table 2141 can be set to The outer peripheral surface of cylinder ontology 211, and every sub- supporting table 2141 is along the circumferentially extending of cylinder ontology 211, every sub- supporting table 2141 Can be between two adjacent supporting rib 214a, and every sub- supporting table 2141 and two adjacent intervals supporting rib 214a It opens.

The intensity that an ontology 211 can be effectively improved as a result, further reduced the probability of the first filter cylinder 21 damage, and It can use multiple supporting rib 214a and multiple sub- supporting tables 2141 improve cylinder ontology 211 and filter housing 1 and have preferably concentricity, It is smooth to cross water flow, furthermore it is also possible to effectively improve sealing stability and reliability.

Some embodiments according to the present utility model, in the cross section of cylinder ontology 211, the outside of multiple supporting elements 214 Edge can be located at same imaginary circle on, thus multiple supporting elements 214 only support on the inner peripheral surface of filter housing 1, it is ensured that cylinder ontology 211 It is more excellent with the concentricity of filter housing 1.

In conjunction with shown in the good Fig. 6 of Fig. 4, mounting portion 213 is mountable to filter core connecting seat, the separate cylinder ontology 211 of mounting portion 213 One end upper end of diagram (for example) can be equipped with and be suitable for accommodating for sealing the gap between mounting portion 213 and filter core connecting seat Sealing element sealing tank 2131, sealing tank 2131 is set to the outer peripheral surface of mounting portion 213, and seals tank 2131 along peace The circumferentially extending in dress portion 213 forms closed-loop shaped.That is, the outer peripheral surface of the separate cylinder ontology 211 of mounting portion 213 is equipped with annular Sealing tank 2131, sealing element can be equipped with by sealing in tank 2131, and sealing element connects for sealing mounting portion 213 and filter core Gap between joint chair can reduce leak probability to avoid the generation of string water phenomenon.

Optionally, sealing tank 2131 is multiple, and the axially spaced setting of multiple sealing tanks 2131.Pacify as a result, It can be realized and be sealed by multiple sealing elements between dress portion 213 and filter core connecting seat, good airproof performance, string water probability can drop significantly It is low, high reliablity.

Some embodiments according to the present utility model, the moulding that the first filter cylinder 21 is integrally formed.In other words, cylinder ontology 211,214 integrated injection molding of mounting portion 213 and multiple supporting elements.So as to facilitate processing, assembly process is omitted, is conducive to Cost is controlled, and assembly precision can be promoted, conducive to concentricity is further ensured that.

In some embodiments, top cover 7 is installed, top cover 7 can be used for positioning the first filtration members in the filter chamber of filter cylinder 2 4.For example, top cover 7 is connected in the cooperation of the first filter cylinder 21 in Fig. 4 and example shown in fig. 6.It is matched with below with top cover 7 Top cover 7 and its dependency structure are described in detail for first filter cylinder 21.

Top cover 7 is pivotally arranged in filter chamber, and the circumferential direction that can be equipped on one in filter cylinder 2 and top cover 7 along filter cylinder 2 is prolonged The sliding slot 72 stretched, another in filter cylinder 2 and top cover 7 are equipped with along the auxiliary section of the circumferentially extending of filter cylinder 2 215, auxiliary section 215 It slidably engages along the circumferential direction of filter cylinder 2 in sliding slot 72.That is, auxiliary section 215 can be set to when sliding slot 72 is set to filter cylinder 2 Top cover 7, alternatively, filter cylinder 2 is equipped with auxiliary section 215, top cover 7 is equipped with sliding slot 72.

For example, sliding slot 72 is set to top cover 7 in Fig. 4 and example shown in fig. 6, auxiliary section 215 is set to the first filter cylinder 21, Top cover 7 is packed into the first filter cylinder 21, top cover 7 or the first filter cylinder 21 are then rotated, keeps the auxiliary section 215 on the first filter cylinder 21 sliding Enter the cooperation of sliding slot 72 in sliding slot 72, so as to rapidly realize the assembly of top cover 7 Yu filter cylinder 2, top cover 7 is matched with filter cylinder 2 Close can easy removal, it is easy to repair and maintenance, and by sliding slot 72 be set to top cover 7, production easy to process, be conducive to control cost.

The other end (that is, upper end of diagram) of central tube 6 passes through top cover 7, and top cover 7 is equipped with and pushed up water pipe 71, central tube 6 It is plugged in and pushed up water pipe 71, pushed up the ring packing muscle 3013 that water pipe 71 is matched in plate of water route 300, pushed up water pipe 71 and water route Water channel 302 on plate 300 is connected to, compact-sized, easy for installation.Moreover, the mode being slidably matched can make to improve top cover 7 and water There is serious bias, can be avoided close in the concentricity of ring packing muscle 3013 on road plate 300 when can prevent top cover 7 from assembling Seal structure offset prevents string water phenomenon, in addition it can prevent the first filter material 4 eccentric, assembly precision can be improved, improve Reliability and stability.

In conjunction with shown in Fig. 4, Fig. 6 and Figure 23-Figure 25, auxiliary section 215 can be set to filter cylinder 2, and auxiliary section 215 can court Extend to the central axis of filter cylinder 2, sliding slot 72 is set to the surface (that is, upper surface of diagram) of top cover 7, perpendicular to sliding slot 72 On the section of extending direction, sliding slot 72 may include: the first extended segment 721 and the second extended segment 722.Specifically, first prolongs The one end (lower end of diagram) for stretching section 721 can be connected with top cover 7, and the other end of the first extended segment 721 prolongs far from top cover 7 It stretches, one end of the second extended segment 722 can be connected with the other end of the first extended segment 721, and the other end of the second extended segment 722 Central axis far from filter cylinder 2 extends.

Optionally, as shown in Fig. 4, Fig. 6, Figure 19 and Figure 20, auxiliary section 215 can be radially toward the central axis of filter cylinder 2 Extend, the other end of the first extended segment 721 can extend along the circumferential of filter cylinder 2 far from top cover 7, and the second extended segment 722 is another One end extends radially outwardly along filter cylinder 2.

Thus, it is possible on the surface of top cover 7 be arranged sliding slot 72, sliding slot 72 circumferentially, and sliding slot 72 have be located at First extended segment 721 of inside and far from outwardly extending second extended segment 722 in the first extended segment 721, the surface of top cover 7, the One extended segment 721 and the second extended segment 722 collectively form the open sliding slot 72 in outside, and the auxiliary section 215 on filter cylinder 2 can be from outer It extends internally, when top cover 7 and filter cylinder 2 relatively rotate, auxiliary section 215 can slide in or out sliding slot 72, structure letter in the circumferential It is single compact, it is ingenious in design, it is easy to disassemble.

In some embodiments, as shown in Figure 23 and Figure 25, in the front end in the slide-in direction of auxiliary section 215, on top cover 7 Sea is equipped with limiting section 73, is limited, can be kept away to auxiliary section 215 afterwards in place with sliding into sliding slot 72 in auxiliary section 215 and sliding Exempt from 215 excessive slip of auxiliary section, and the fitment stability of auxiliary section 215 Yu sliding slot 72 can be improved, and then top cover 7 can be made More reliable and more stable with the cooperation upper frame of filter cylinder 2, sealing performance is further promoted.

Optionally, limiting section 73 is formed as limit plate, and limit plate extends respectively at the first extended segment 721, second Section 722 is connected with top cover 7.It is possible thereby to be limited between top cover 7, the first extended segment 721, the second extended segment 722 and limit plate The sliding slot 72 of radial outside and glide direction rear open out is not only simple in structure compact, and assembling manufacturing easy to process.

Some embodiments according to the present utility model can be equipped at least one on auxiliary section 215 as illustrated in figures 19 and 20 Along the fabrication hole 2151 axially through auxiliary section 215 of filter cylinder 2, material can be saved, mitigates weight, and can be to avoid cooperation Portion 215 deforms, and stability can be improved.

In some embodiments, sliding slot 72 is the multiple of the circumferentially-spaced distribution along top cover 7, as shown in figure 20, auxiliary section 215 be one-to-one multiple with sliding slot 72.As shown in figure 20, auxiliary section 215 and sliding slot 72 may respectively be two.In this way, top Lid 7 and filter cylinder 2 can be combined and realize multiple positioning by multiple sliding slots 72 and matching for auxiliary section 215, and stability is more excellent, reliably Property is more preferably.

Optionally, as shown in figure 20, multiple sliding slots 72 can be evenly spaced on along the circumferential direction of filter cylinder 2, moreover, multiple cooperations Portion 215 can be evenly spaced on along the circumferential direction of filter cylinder 2.Thus, it is possible to move the rotation that fits through of top cover 7 and filter cylinder 2 once It completes, operates conveniently, it is high-efficient, and seal uniform and stable.

Some embodiments according to the present utility model, as shown in figure 23 and figure 24, the outer peripheral surface of top cover 7 can be equipped with along top cover 7 circumferentially spaced multiple top cover support muscle 74, each top cover support muscle 74 can be along the axially and radially extensions of filter cylinder 2. Optionally, each top cover support muscle 74 stops the inner wall for being butted on filter cylinder 2.

In this way, the inner peripheral surface of the outer peripheral surface of top cover 7, filter cylinder 2 and two adjacent top cover support muscle 74 can construct it is fair Perhaps the top cover that water flow passes through crosses water flow passage 70, and the water in filter chamber can flow to the first filtering from 7 water passage runner 70 of top cover Part 4 can flow out after the filtering of the first filtration members 4 from the second pipe water passage 60b between the first filtration members 4 and central tube 6 Second filter chamber 220 completes filtering, simple and compact for structure, can effectively reduce the occupied space of composite filter element 100, be conducive to space cloth Office, can meet more installation requirements.

For the second filter cylinder 22, in some embodiments, as shown in Fig. 4 and Figure 26-Figure 31, the second filter cylinder 22 is set In the installation cavity 10 of filter housing 1, and the second filter cylinder 22 is located at axial one end (for example, lower end of diagram) of the first filter cylinder 21, The second filter chamber 220 can be defined in second filter cylinder 22, it can be between the outside wall surface of the second filter cylinder 22 and the inner wall of filter housing 1 It is spaced apart and forms second and cross water space 10a2, second, which crosses water space 10a2, crosses water space 10a1 with first and be connected to and to be formed between water Gap 10a.

Second filter cylinder 22 may include: the first cylinder 221, the second cylinder 222 and multiple ribs 224, specifically, first It could be formed with the first wound packages chamber 2210 in cylinder 221, on the axial direction of the first cylinder 221, the connection of the second cylinder 222 In one end of neighbouring first filter cylinder 21 of the first cylinder 221, it could be formed in the second cylinder 222 and connect with the first wound packages chamber 2210 The second logical wound packages chamber 2220.

As shown in Figure 26, Figure 29 and Figure 31, internal diameter of the internal diameter less than the first cylinder 221 of the second cylinder 222, the second cylinder For 222 outer diameter less than the outer diameter of the first cylinder 221, multiple ribs 224 can be set to the outer peripheral surface of the second cylinder 222, and multiple Rib 224 being provided at circumferentially spaced along the second cylinder 222, each rib 224 can along the second entire body cylinder 222 it is radial to It is outer to extend and be connected with the first cylinder 221.The first cylinder 221 is connected with the second cylinder 222 as a result, the periphery of the second cylinder 222 Face is equipped with multiple ribs 224, the second filter chamber 220 can be configured to the cavity that lower diameter is big, upper diameter is small, by the second filter Cylinder 22 is configured to rocket barrel structure.

Be conducive to the structural strength of the second filter cylinder 22 of enhancing as a result, can reduce reduce the second filter chamber 220 deformation occurs it is general Rate can also be conducive to guarantee that the circularity of the second filter chamber 220 is indeformable, can provide for the second filtration members 5 in the second filter chamber 220 Effective protection avoids the second filtration members 5 from collapsing, and stability is good, high reliablity, and can extend the second filtration members 5 uses the longevity Life.

Some embodiments according to the present utility model, in conjunction with shown in Figure 26, Figure 29 and Figure 31, the second filter cylinder 22 further include: Connector drum 223, connector drum 223 may be provided between the first cylinder 221 and the second cylinder 222, and connector drum 223 can divide Be not connected with the first cylinder 221 and the second cylinder 222, can be formed in connector drum 223 respectively with the first wound packages chamber 2210 and The connecting cylinder of second wound packages chamber 2220 connection behave affectedly 2230, it is to be understood that the first wound packages chamber 2210, the second wound packages chamber 2220 It behave affectedly with connecting cylinder and 2230 collectively forms the second filter chamber 220 described above.Wherein, each rib 224 respectively with the first cylinder 221, connector drum 223 is connected with the second cylinder 222.

In other words, the first cylinder 221 is connected with the second cylinder 222 by connector drum 223, and multiple ribs 224 not only may be used To enhance the intensity of the first cylinder 221 and connector drum 223 itself, and the first cylinder 221 and connector drum 223 can be strengthened Junction and connector drum 223 and the second cylinder 222 junction bonding strength, can avoid junction deformed damaged, Improve reliability.

In some embodiments, as shown in figure 31, connector drum 223 can along the first cylinder 221 circumferential direction and radially extend, The outer end of connector drum 223 can be connected with the first cylinder 221, and the inner end of connector drum 223 is connected with the second cylinder 222. That is, connector drum 223 is formed as hollow cylinder annular.Structure is simple, easy to process.

In further embodiments, as shown in Figure 26, Figure 27 and Figure 29, connector drum 223 can be along the first cylinder 221 Axially extending, axial one end (for example, lower end of diagram) of connector drum 223 can be connected with the first cylinder 221, and connecting cylinder The axial other end (that is, upper end of diagram) of body 223 can be connected with the second cylinder 222, from the first cylinder 221 to the second cylinder On 222 direction, the radial dimension of connector drum 223 is gradually reduced.That is, connector drum 223 is reducing cylinder, make first Cylinder 221 is connected to the second cylinder 222 by reducing cylinder, can when the second filter cylinder 22 receives external force, mitigate junction by The sharp impact arrived, meanwhile, the shape of the second filter cylinder 22 can be optimized, improve the aesthetics of the second filter cylinder 22.

Optionally, as shown in figure 29, from the first cylinder 221 on the direction of the second cylinder 222, connector drum 223 Side wall can be tilted towards the central axis of the second cylinder 222, i.e., the inner wall of connector drum 223 towards the second cylinder 222 and inwardly Inclination, so as to optimize the internal structure of the second filter chamber 220, convenient for the layout and installation of the second filter material 5.

Further, as shown in figure 29, each rib 224 may include: muscle ontology 2241 and muscle interconnecting piece 2242, muscle sheet Body 2241 can be located on the outer peripheral surface of the second cylinder 222, and muscle ontology 2241 can radially outward prolonging along the second cylinder 222 Stretch, muscle interconnecting piece 2242 may connect to the axial end portion of muscle ontology 2241, and muscle interconnecting piece 2242 can respectively with connector drum 223 are connected with the first cylinder 221, simple and compact for structure, can effectively improve the intensity and reliability of the second filter cylinder 22.

Optionally, as shown in figure 28, multiple ribs 224 can be arranged along the circumferential uniform intervals of the second cylinder 222, so as to To be uniformly in the circumferential direction that the second filter cylinder 22 provides support and protective effect, reinforcing effect is good, and overall structure is neat and artistic.

Optionally, each rib 224 can be along the axially extending of the second entire body, thus, it is possible between adjacent rib 224 It forms axially extending second and crosses water space 10a2, flow over water resistance conducive to reduction, smooth in water flow can be improved.

Optionally, each rib 224 can from the second cylinder 222 far from first cylinder 221 axial end face (for example, The upper surface of diagram) extend to the first cylinder 221, that is, and each rib 224 extends from an end face of the second entire body in the axial direction to be connected It is connected to the first cylinder 221, it is easy to process, the probability of 22 deformed damaged of the second filter cylinder can be further decreased.

Optionally, in the cross section of the second cylinder 222, the outer edge of multiple ribs 224 is located in same imaginary circle, from And can guarantee the concentricity of multiple ribs 224 and the second logical cylinder 22, installation accuracy can be promoted further.

Optionally, as shown in Figure 29 and Figure 31, in the section of central axis for crossing the first entire body, each rib 224 Outer edge is concordant with the outer edge of the first cylinder 221.Optionally, in the projection in the axial direction along the second entire body, multiple ribs 224 are located in same imaginary circle with the outer edge of the first entire body.

That is, the lateral surface of each rib 224 is coplanar with the outer peripheral surface of the first entire body.It can be conducive to control the as a result, The radial full-size of two filter cylinders 22 reduces occupied space, benefit to be conducive to guarantee the concentricity of the second filter cylinder 22 and filter housing 1 In layout, it can satisfy more installation requirements.

As shown in Figure 29 and Figure 31, the outside of one end far from the first cylinder 221 of each rib 224 is equipped with support level 7211, support level 7211 is suitable for cooperating with middle separate disk 3, to support middle separate disk 3, realizes the fixed and positioned of the second filter material 5, in It will be described below every the specific structure of disk 3.

For the ease of dismantling and realizing positioning, and assist realizing the two channel technique of composite filter element 100, the bottom of filter cylinder 2 Bottom cover 8 can be equipped with.Specifically, as shown in Figure 4 and Figure 6, bottom cover 8 can be set to the bottom of the second filter cylinder 22, and the second filtration members 5 can It is mounted on bottom cover 8, and the bottom cover water hole 80 for being connected to water space 10a and the second filter chamber 220 can be equipped on bottom cover 8.By This, bottom cover 8 can support the second filtration members 5 of bearing, improve the stability and reliability of the second filtration members 5, prevent string water.

Some embodiments according to the present utility model, as shown in Figure 32-Figure 35, bottom cover 8 may include 81 He of bottom cover ontology Lid interconnecting piece 82 on bottom cover ontology 81, in a ring, bottom cover water hole 80 is set on bottom cover ontology 81 lid interconnecting piece 82, knot It closes shown in Fig. 4 and Fig. 6, filter cylinder 2 (being specially the second filter cylinder 22 in the example of diagram) can only be butted on bottom cover ontology 81, and filter cylinder 2 can be connected with the sealing of lid interconnecting piece 82.Bottom cover 8 can connect in the bottom of the second filter cylinder 22 as a result, bottom cover 8 in the circumferential with Second outside bottom cover 8 can be crossed the in water space 10a2 and the second filter cylinder 22 by the sealing of the second filter cylinder 22, bottom cover water hole 80 Two filter chambers 220 connection, so as to facilitate the installation of the second filtration members 5, conducive to rationally empty using the inside of the second filter chamber 220 Between.

In conjunction with shown in Figure 32, Figure 34 and Figure 35, annular interconnecting piece 212 may include: 821 He of first connecting portion of annular The second connecting portion 822 of annular, wherein first connecting portion 821 is connected with the outer periphery of bottom cover ontology 81, and first connecting portion 821 are axially facing the extension of filter cylinder 2 along filter cylinder 2, and second connecting portion 822 can be set to the side towards filter cylinder 2 of bottom cover ontology 81, And second connecting portion 822 can be spaced apart set on the inside of first connecting portion 821, first connecting portion with first connecting portion 821 The installation groove 823 of annular can be formed between 821 and second connecting portion 822, filter cylinder 2 can be plugged in first connecting portion 821 Between second connecting portion 822, i.e., filter cylinder 2 is plugged in installation groove 823, and bottom cover water hole 80 is located in second connecting portion 822, It is simple and compact for structure, it is quick and easy for installation.

In some embodiments, as shown in figs. 4 and 6, filter cylinder 2 only can be butted on bottom cover ontology 81, and filter cylinder 2 can be with first Interconnecting piece 821 is connected at least one of second connecting portion 822 sealing, and in other words, the bottom surface of filter cylinder 2 is only butted on bottom cover ontology 81 upper surface, filter cylinder 2 and first connecting portion 821 are tightly connected, alternatively, filter cylinder 2 and second connecting portion 822 are tightly connected, then Alternatively, filter cylinder 2 is tightly connected with first connecting portion 821 and second connecting portion 822 simultaneously.It is convenient for as a result, by bottom cover 8 and filter cylinder 2 In place, stability is good for assembly, furthermore, it is possible to the probability that bottom cover 8 surprisingly falls off is reduced, high sealing reliability.

Optionally, the part of filter cylinder 2 being plugged between first connecting portion 821 and second connecting portion 822 is connect with first The sealing element of annular can be equipped between at least one of portion 821 and second connecting portion 822.That is, filter cylinder 2 and first connects The sealing element by there is annular can be set between socket part 821, alternatively, annular can be equipped between filter cylinder 2 and second connecting portion 822 Sealing element, then alternatively, can be respectively equipped between filter cylinder 2 and first connecting portion 821 and between filter cylinder 2 and second connecting portion 822 The sealing element of annular.So as to further lift-off seal effect, string water, leak can be effectively prevent.

Optionally, sealant, filter cylinder 2 and first connecting portion can be equipped between first connecting portion 821 and second connecting portion 822 821 are connected with second connecting portion 822 by sealant sealing.In other words, 2 grafting of filter cylinder and first connecting portion 821 and second connect In annular mounting recess 823 between socket part 822, annular is washed, and sealant is perfused in installation groove 823, to realize filter cylinder 2 and the The sealed connection of one interconnecting piece 821 and second connecting portion 822, is not easy to misplace, and can guarantee preferably sealing effect, and be conducive to Control cost.

Optionally, filter cylinder 2 and lid interconnecting piece 82 can pass through hot-melt adhesive paste.Alternatively, optionally, filter cylinder 2 and lid interconnecting piece 82 can be connected with welded seal, for example, filter cylinder 2 can be connected with lid interconnecting piece 82 by rotation weldering or ultrasonic bonding.As a result, The connection of filter cylinder 2 Yu bottom cover 8 not only may be implemented, but also sealing between the two may be implemented, can avoid the first filtering runner And second go here and there water between filtering runner, and a variety of filtering functions of composite filter element 100 can be made more reliablely and stablely to realize.

In some embodiments, as shown in figure 35, bottom cover water hole 80 can be set to the middle part of bottom cover ontology 81, i.e. filter cylinder 2 The outer water space 10a that crosses is connected to the filter chamber in filter cylinder 2 in the medium position of bottom cover 8, so as to optimize the second filter material 5 Layout, so that structure is more compact.Optionally, bottom cover water hole 80 may include that multiple 8 sons of bottom cover being spaced apart cross the mouth of a river (not shown), thus, it is possible to promote uniformity when water flow flows through bottom cover water hole 80, water flow pair when avoiding hydraulic pressure excessive Second filter material 5 generates acute impact, can provide protection to a certain extent for the second filter material 5.

In the embodiment that Fig. 4 and Fig. 6 illustrates, composite filter element 100 further includes middle separate disk 3.With reference to the accompanying drawing to interval Disk 3 and its dependency structure are described in detail.

Middle separate disk 3 is installed, middle separate disk 3 is connected with the sealing of filter cylinder 2, the filter chamber in filter cylinder 2 is divided into filter cylinder 2 Close on the first filter chamber 210 of plate of water route 300 and the second filter chamber 220 far from plate of water route 300.In the illustrated embodiment.Filter cylinder 2 Including the first filter cylinder 21 and the second filter cylinder 22, middle separate disk 3 is connected between the first filter cylinder 21 and the second filter cylinder 22, and interval Disk 3 separates the first filter chamber 210 and the second filter chamber 220.I.e. middle separate disk 3 can seal phase with the first filter cylinder 21 and the second filter cylinder 22 respectively Even, the first pipe that middle separate disk 3 is equipped with for being connected in central tube 6 crosses second in water flow passage channel 60a and the second filter cylinder 22 Filter chamber 220 every disk water hole 30, the first filtering runner and the second filtering runner are kept apart.

Optionally, lip ring can be equipped between middle separate disk 3 and filter cylinder 2, to separate the first filter chamber 2 and the second filter chamber 220, avoid drainage.

Some embodiments according to the present utility model, as shown in Figure 36-Figure 39, middle separate disk 3 may include: every disk ontology 31 and annular every disk interconnecting piece 32, every disk ontology 31 can along the first filter cylinder 21 circumferential direction and radially extend, every disk water hole 30 Can be set to every disk ontology 31, seal and be connected with the second filter cylinder 22 every disk ontology 31, every disk interconnecting piece 32 can with every disk ontology 31 Outer periphery is connected, and can be along the axially extending of the first filter cylinder 21 every disk interconnecting piece 32, can be with the first filter cylinder every disk interconnecting piece 32 21 sealings are connected, so as to separate the second filter chamber 220 in the first filter chamber 210 and the second filter cylinder 22 in the first filter cylinder 21 It opens, prevents occurring string water phenomenon between the first filter chamber 210 and the second filter chamber 220, and sealing reliability is good, be not easy dislocation and lose Effect.

Optionally, as shown in Figure 4 and Figure 6, the first filter cylinder 21 extends downward beyond middle separate disk 3, the first filter cylinder 21 with every disk Lip ring 33, the i.e. inner peripheral surface of the first filter cylinder 21 and the outer peripheral surface every disk interconnecting piece 32 can be equipped between interconnecting piece 32 Between by lip ring 33 realize sealing, it is convenient for disassembly and assembly, be conducive to control cost.

Further, the sealed groove of annular is equipped with every one of upper casing in disk interconnecting piece 32 and the first filter cylinder 21 321, lip ring 33 is set in sealed groove 321, lip ring 33 can be limited in sealed groove 321, be avoided Sealing element dislocation, sealing reliability are further promoted.In example as shown in Figure 4, sealed groove 321 is set to be connected every disk Portion 32, and in the axial direction of filter cylinder 2, sealed groove 321 can be corresponding with every 31 position of disk ontology.It is easy to process as a result, it is conducive to Assembly, can be effectively controlled cost, and sealing stability can be improved.

In some embodiments, the second filter cylinder 22 be equipped with support level 7211, every disk interconnecting piece 32 can only support in branch Support step 7211 stops specifically, support level 7211 is located on multiple ribs 224 of the second filter cylinder 22 every disk interconnecting piece 32 The support level 7211 being butted on multiple ribs 224.Thus, it is possible to using the bearing of the second filter cylinder 22 every disk interconnecting piece 32, will in It is located between the first filter cylinder 21 and the second filter cylinder 22 every disk 3, can prevent the first filtration members 4 in the first filter chamber 210 from collapsing, it can It is promoted by property.

Some embodiments according to the present utility model, as shown in Fig. 4, Figure 38 and Figure 39, central tube 6 with every disk water hole 30 Connection, every can be equipped with locating support table 311 in disk water hole 30, one end of central tube 6 only support with locating support table 311, thus Central tube 6 can be located in the first filter cylinder 21, smart structural design is easy to assembly.Optionally, locating support table 311 can Be formed as the annular brace platform radially with circumferentially extending, positioned so as to pipe 6 centered on throughout the circumferential, assembly precision Height, stability is more preferably.

Some embodiments according to the present utility model cross water every disk every that can be equipped with to surround on disk ontology 31 as shown in figure 39 Hole 30 and the positioning bar 312 extended axially towards the first filter cylinder 21, central tube 6 can be plugged in positioning bar 312, depending on Position muscle 312 can in the circumferential centered on pipe 6 limited, avoid central tube 6 tilt, positioning bar 312 cooperate locating support table 311, central tube 6 can be stably installed on middle separate disk 3.

Optionally, holding tank 611 can be equipped in one of them in positioning bar 312 and central tube 6, in holding tank 611 It can be equipped with the sealing ring for the gap between center seal pipe 6 and middle separate disk 3, i.e. the first pipe of sealing ring sealing connection crosses water Channel 60a and every disk water hole 30.For example, central tube 6 is equipped with holding tank 611 in the example of attached drawing signal, snare is sealed If on central tube 6 and being contained in holding tank 611.When central tube 6 is installed in positioning bar 312 as a result, in sealing ring sealing Gap between heart pipe 6 and positioning bar 312 will be connected to every disk water hole 30 with the first pipe water passage 60a.Structure is simply tight It gathers, sealing effect is good, and dismounts convenience, is conducive to control cost.

In one embodiment of the utility model, composite filter element 100 includes central tube 6, and central tube 6 is located at the first filter chamber In 210, and one end of central tube 6 is connected to middle separate disk 3, and the other end of central tube 6 is pierced by the first filter cylinder 21, in central tube 6 The first pipe the water passage 60a, the first pipe water passage 60a and the first filter chamber 210 being connected to the second filter chamber 220 can be formed with It is mutually isolated.As a result, central tube 6 can pass through the first filter chamber 210 be connected to the second filter chamber 220, realize first filter runner and Second filters the mutually isolated of runner, so that the first filtering runner and the second filtering runner is individually filtered, is independent of each other, structure It is compact, it is ingenious in design.

As shown in Figure 40-Figure 43, central tube 6 is located in the first filter chamber 210, and one end of central tube is connected to interval Disk, in the example shown in the series of figures, central tube 6 are located in the filtration channel 40 in the first filter material 4, and central tube 6 may include: tube body 61 and multiple baffles 62, wherein the first pipe water passage 60a is formed in tube body 61, multiple baffles 62 can be set to tube body 61 outer peripheral surface, and multiple baffles 62 being provided at circumferentially spaced along tube body 61, each baffle 62 can be along tube body 61 It extends radially outwardly, to form the second pipe water passage 60b between adjacent two baffles 62 and the first filter material 4.

That is, being formed with the first pipe water passage 60a in hollow tube body 61, multiple baffles 62 are located at tube body On 61 outer peripheral surface and extend outwardly, it can be in mistake in the outer peripheral surface, adjacent two baffles 62 and the first filter material 4 of tube body 61 It filters and forms the second pipe water passage 60b, the first pipe water passage 60a and the second pipe water passage between the inner wall in channel 40 60b inside and outside tube body 61, independently of each other, is not connected to mutually respectively.

Multiple baffles 62 can play a supporting role to the first filter material 4 as a result, and the intensity of the second filter material 5 can be improved, and prevent Only filter material deformation is collapsed, and filtering stability can be improved, and may make up the second pipe water passage 60b, so that the first pipe is crossed water logical Road 60a and the second pipe water passage 60b are independently arranged, smart structural design, and space utilization rate is high.

Optionally, as shown in Figure 40 and Figure 42, multiple baffles 62 can be arranged along the circumferential uniform intervals of tube body 61, thus Multiple equally distributed runners can be formed in the outer peripheral surface of tube body 61 again, cross water flow and freely stablize, be conducive to promote filter effect.

Optionally, on the axial direction of tube body 61, both ends that the both ends of each baffle 62 can respectively with tube body 61 There is gap in the axial direction of tube body 61.That is, each baffle 62 is located at the middle part of tube body 61.Thus, it is possible to pre- Pipeline section is stayed to assemble central tube 6 and plate of water route 300 and middle separate disk 3.

In some embodiments of the utility model, as shown in figure 43, each baffle 62 may include: gear 621 He of ontology Guide part 622, wherein gear ontology 621 may be provided on the outer peripheral surface of tube body 61, and keeps off ontology 621 and can radially prolong It stretches, guide part 622 can connect in the axial end portion for working as ontology, and guide part 622 can be connected with tube body 61, guide part 622 lateral surface is to tilt far from gear ontology 621 and towards the central axis of tube body 61 inclined-plane extended.For example, illustrating Example in, tube body 61 orients along the vertical direction, each baffle 62 include gear ontology 621 and be located at gear ontology 621 up and down Two guide parts 622 at both ends, wherein the lateral surface of the guide part 622 on top upwardly and inwardly tilts extension, the guiding of lower part The lateral surface in portion 622 inwardly and downwardly tilts extension.

As a result, during installation, the inclined-plane on guide part 622 can provide booster action, be conducive to central tube 6 being packed into first Filtration channel 40 in filter material 4 can reduce assembly difficulty, improve assembly efficiency, additionally it is possible to reduce rigging error.

Optionally, the first pipe water passage 60a is along the axially extending of tube body 61, and as shown in figure 43, it is logical that the first pipe crosses water Road 60a can be penetrated through from an axial end face for tube body 61 to the axial other end of tube body 61, i.e. the first pipe water passage 60a is conducive to assembly along the both ends for axially penetrating through tube body 61 of tube body 61, compact-sized, convenient processing and manufacture.

In some embodiments, as shown in figure 42, the cross section of the cross section of tube body 61 and the first pipe water passage 60a It can be circle, i.e., tube body 61 is round tube, and the first pipe water passage 60a is circular channel, also, in the transversal of tube body 61 In face, the outer edge of multiple baffles 62 can be located in same imaginary circle, and multiple baffles 62 can only support the first filter material 4 as a result, Inner peripheral surface can promote the concentricity between the first filter material 4 and the first filter chamber 210, and water excessively is smooth, and filter effect is good.

As shown in figure 43, the axial ends of tube body 61 is respectively equipped with the holding tank 611 for being suitable for accommodating sealing element, holding tank 611 are set to the outer peripheral surface of tube body 61 and along the circumferentially extending of tube body 61 at closed-loop shaped.In this way, central tube 6 is installed into After one filter cylinder 21, the sealing element positioned at top can seal ring packing muscle 3013 and center in the first installation attachment base 3011 Gap between pipe 6, meanwhile, the sealing element positioned at bottom can seal the gap between disk water hole 30 and central tube 6, from And realize that the first filtering runner and second filters the mutually indepedent of runner, avoid string water.

Optionally, holding tank 611 can be multiple, and multiple holding tanks 611 can be arranged along the axially spaced-apart of tube body 61, So as to install between multiple sealing ring center seal pipes 6 and middle separate disk 3 and central tube 6 and the junction of plate of water route 300 Gap further avoids string water, drainage occur, improves filtering stability, and can extend composite filter element 100 uses the longevity Life.

Advantageously, central tube 6 can be integrally formed part, and in other words, tube body 61 and multiple baffles 62 can be integrally formed, Convenient processing and manufacture, and can omit assembly process, avoids assembly bring error, the first filter material 4 and the first filter chamber 210 Concentricity also simultaneously with guarantee, cross the smooth stabilization of water, filter effect is more preferably.

Wherein, central tube 6, middle separate disk 3 cooperate the first filter cylinder 21 and the second filter cylinder 22 may be constructed with the first mistake is isolated Filter the barrier assembly of runner and the second filtering runner.

For the first filtration members 4 and the second filtration members 5, in conjunction with shown in Fig. 2, Fig. 4 and Fig. 6, the first filtration members 4 peace In the first filter chamber 210, the second filtration members 5 can be located at axial one end of the first filtration members 4, and the second filtration members 5 are installed In the second filter chamber 220.Wherein, on the direction of water flow, the second filtration members 5 can be located at the downstream of the first filtration members 4, in filter housing On 1 axial direction, and second level filter material is located at the downstream of first order filter material, on the axial direction of filter housing, first order filter material Length L1 and the second level filter material length L2 meet: 0.5≤L2/L1≤1.

That is, filtration members step-by-step arrangement, and the first filtration members 4 and the second filtration members 5 are distributed in the axial direction.To mistake The water of filter can first pass through the filtering of the first filtration members 4, filter using the second filtration members 5, i.e. the first filtration members 4 are preposition filter material Core, the second filtration members 5 are postposition filter material core, and the length ratio of preposition filter material core and postposition filter material core is 1:1 to 1:5.Thus, it is possible to Optimize the water route layout in filter process, reduce occupied space, the estimated of the first filtration members 4 and the second filtration members 5 can also be made Service life matches, and can reduce replacement frequency, is conducive to control cost.

Herein it should be noted that on the direction of water flow, the second filtration members 5 are located at the downstream of the first filtration members 4, can be with It is that water flow first passes through the first filtering for the first time of filtration members 4, is then directly over the second filtration members 5 and filters again, can also be water flow The first filtering for the first time of filtration members 4 is first passed through, it is then secondary through other filter elements (for example, second filter core 200 of attached drawing signal) Filtering flows through the realization of the second filtration members 5 later and filters again.

Optionally, the minimum diameter of filter housing 1 can be D1, and the maximum outside diameter of filter cylinder 2 is that D2, D1 and D2 can satisfy: D1- D2≥0.5mm.In other words, the annular formed between the inner peripheral surface of filter housing 1 and the outer peripheral surface of filter cylinder 2 crosses water space 10a, should The size in gap can be in 0.25mm or more value.For example, can have between the inner peripheral surface of filter housing 1 and the outer peripheral surface of filter cylinder 2 The gap of 0.5mm, at this point, D1-D2=10mm.Certainly, the utility model is without being limited thereto, the inner peripheral surface of filter housing 1 and filter cylinder 2 it is outer The gap formed between circumferential surface can also be other sizes.In this way, can reduce the mistake water resistance in the first filtering runner, made Water is smooth, can promote filter effect, and water purification output is stablized.

Optionally, the minimum diameter d of the first pipe water passage 60a in central tube 6 can satisfy: d >=3mm.For example, the The internal diameter of one pipe water passage 60a can be 3mm, 5mm, 10mm etc..It is crossed in water flow passage 60a so as to reduce the first pipe Hydraulic pressure, filter effect is good, and water purification exports smooth stabilization.

Some embodiments according to the present utility model, each of the first filtration members 4 and the second filtration members 5 may include At least one filter material can pointedly cross the different impurities in drainage by different filter materials, promote the taste quality of water, expand Open up the filtering function of composite filter element 100.For example, in the example shown in the series of figures, the first filtration members 4 include a filter material, the second filter material 5 Including two-stage filter material.

In some embodiments, the second filtration members 5 may include multistage filter material, and multistage filter material can be along axial direction to distribution In in the second filter chamber 220.Thus, it is possible to extend the filtering function of postposition filter core, effluent quality and water outlet can be advanced optimized Mouthfeel, while the inner space of the second filter chamber 220 can be rationally utilized, topology layout is rationally ingenious, convenient for disassembly and assembly.

Optionally, as shown in Figure 4 and Figure 6, it is in cylinder that the second filter material 5, which may include tubular first order filter material 51 and second, The second level filter material 52 of shape, second level filter material 52 can be set to one end of neighbouring first filtration members 4 of the first first order filter material 51 (for example, upper end of diagram), can be spaced apart between first order filter material 51 and second level filter material 52 by isolation board 53.In this way, First order filter material 51 and second level filter material 52 can be arranged in the axial direction, and water flow is made to flow through second from water space 10a excessively Filter chamber 220 successively passes through first order filter material 51 when flowing to the first pipe filtration channel 6a and second level filter material 52 realizes two-stage mistake Filter, simple and compact for structure, filter effect is good.

Further, as shown in Figure 4 and Figure 6, can have the first material water channel 510, second level filter material in first order filter material 51 Can have the second filter material water channel 520 in 52, the first filter material water channel 510 be connected to water space 10a is crossed, the second filter material water channel 520 and First pipe water passage 60a connection.In this way, the water crossed in water space 10a can flow into the first filter material water channel 510, by the first order Filter material 51 flows to second level filter material 52 after filtering, and flows to the first pipe from the second filter material water channel 520 after the filtering of second level filter material 52 Water passage 60a, finally exports.

Wherein, for the composition and type of the first filtration members 4 and the second filtration members 5, those skilled in the art can root Adaptability setting is done according to factors such as demand, cost, installation spaces.For example, the first filtration members 4 include a filter material, the second filtering Part 5 includes two-stage filter material, and filter material includes but is not limited to strainer, filter cloth, active carbon, PP cotton etc..The utility model, which does not do this, to be had Body limits.

Below with reference to Fig. 4 and Fig. 6 detailed description according to the element kit 1000 of one specific embodiment of the utility model and Its filter process.

In the present embodiment, element kit 1000 includes plate of water route 300, the first filter core and the second filter core 200, wherein the first filter Core is composite filter element 100, and the second filter core 200 is reverse osmosis filter core, i.e., front filter element in the prior art and postposition filter core are integrated For the composite filter element 100 in the present embodiment, composite filter element 100 is installed on the first attachment base 3011, and the second filter core 200 is reverse osmosis Filter core is installed on the second attachment base 3012, and the central axis of the central axis of composite filter element 100 and the second filter core 200 is vertically Direction orientation, and composite filter element 100 and the second filter core 200 and plate of water route 300 are generally vertically.

Element kit 1000 in use, in composite filter element 100 first filtering runner and second filtering runner it is mutually indepedent, It is not connected to mutually.

Specifically, element kit 1000 in use, extraneous water plate 300 enters composite filter element 100 by water, in figure Shown in solid straight arrows, top cover of the water across top cover support muscle 74 and the first filter cylinder 21 crosses water flow passage 70 and enters the first filter Chamber 210 is realized by the first filtration members 4 and is filtered, water is flowed from outside to inside, then flowed between the first filter material 4 and tube body 61 In second pipe water passage 60b, then the water channel 302 on plate 300 flows out by water, completes 1002 in the second filtering runner Prefilter process.

The second filter core 200, which can be flowed to, by the filtered water of front filter element carries out secondary filter, in the present embodiment, the Two filter cores 200 are reverse osmosis filter core, and the filter process of reverse osmosis filter core is known to those skilled in the art, herein no longer in detail Carefully repeat.

Filter housing 1 can be flowed by plate 300 by water by the filtered water of the second filter core 200, such as the hollow straight line arrow in Fig. 4 Described in head, first excessively water space 10a1 of the water between filter housing 1 and the first filter cylinder 21 is flowed between filter housing 1 and the second filter cylinder 22 Second cross water space 10a2, then the second filter chamber 220 is flowed into from the bottom cover water hole 80 on bottom cover 8, by from the first filter material water Road 510 is filtered by first order filter material 51, is then flowed to second level filter material 52 from the edge of isolation board 53, is filtered by the second level Material 52 flows into the second filter material water channel 520 after filtering, by, every disk water hole 30, it is logical then to cross water from the first pipe on middle separate disk 3 Road 60a flows to plate of water route 300, completes the postposition filter process in the first filtering runner, then through plate of water route 300, output filtering Water purification afterwards.

The mistake in filter process and the second filtering runner in the above embodiments of the present invention, in the first filtering runner Cheng Butong is filtered, and cooperates reverse osmosis filter core, may be implemented continuously to filter.It is, of course, understood that the first filtering runner Interior filter process can be with identical with the filter process in the second filtering runner, and composite filter element 100 and the second filter core 200 Individual filter process can be carried out side by side.

According to the water treatment facilities of the utility model embodiment, including the filter core group according to the utility model above-described embodiment Part 1000, element kit 1000 have the composite filter element 100 of above-described embodiment.

It may be implemented double according to the water treatment facilities of the utility model embodiment by the way that above-mentioned composite filter element 100 is arranged Runner independently filters, and filter effect is good, and simple and compact for structure, is conducive to rational deployment, convenient for disassembly and assembly laborsaving, can save dimension Maintenance cost is repaired, in addition, reducing occupied space, can satisfy more installation requirements.

Water treatment facilities can be water purifier, purifying drinking appliance, water dispenser etc..It is set according to the water process of the utility model embodiment Standby other structures and operation be all for those of ordinary skills it is known, be not detailed herein.

In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ", The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art The schematic representation of language may not refer to the same embodiment or example.Moreover, description specific features, structure, material or Person's feature can be combined in any suitable manner in any one or more of the embodiments or examples.

While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that: These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective And modification, the scope of the utility model are defined by the claims and their equivalents.

Claims (13)

1. a kind of composite filter element characterized by comprising

Filter housing defines installation cavity in the filter housing；

Filter cylinder, the filter cylinder are located in the installation cavity and form the first filtering runner and second being mutually isolated with the filter housing Filter runner, wherein be equipped in the filter cylinder and filter in runner the first filtration members of fluid and for filtering for filter first The second filtration members of fluid, second filtration members include at least two-stage filter material in second filtering runner.

2. composite filter element according to claim 1, which is characterized in that first filtration members and second filtration members edge The axially spaced-apart of the filter cylinder is arranged.

3. composite filter element according to claim 2, which is characterized in that further include:

Middle separate disk, the middle separate disk are located in the filter cylinder and are first along the axially spaced of the filter cylinder by the cartridge interior Filter chamber and the second filter chamber, first filtration members are set in first filter chamber, and second filtration members are set to second filter It is intracavitary.

4. composite filter element according to claim 3, which is characterized in that second filtration members include:

First order filter material, the first order filter material are mounted in second filter chamber and are located in the second filtering runner；

Second level filter material, the second level filter material are mounted in second filter chamber and are located in the second filtering runner, The second level filter material is set between the middle separate disk and the first order filter material.

5. composite filter element according to claim 4, which is characterized in that second filtration members further include:

Isolation board, the isolation board are set between the first order filter material and the second level filter material with by the first order filter material It is spaced apart with the second level filter material.

6. composite filter element according to claim 4, which is characterized in that second filtration members and filter cylinder interval open form Cross water flow passage at filter material, the filter cylinder is spaced apart to form water space with the filter housing, be formed in the first order filter material with The first filter material water channel for crossing water space connection.

7. composite filter element according to claim 6, which is characterized in that the filter cylinder has bottom cover, and the bottom cover is equipped with Bottom cover crosses the mouth of a river, and the first filter material water channel is crossed the mouth of a river by the bottom cover and is connected to the water space of crossing.

8. composite filter element according to claim 6, which is characterized in that the middle separate disk, which is equipped with, crosses the mouth of a river every disk, described Composite filter element further include:

Central tube, the central tube is set in first filter chamber and one end is connected to the middle separate disk, the central tube it is another One end passes through the filter cylinder, is formed with mutually isolated with first filter chamber in the central tube and passes through with second filter chamber The first pipe water passage that mouth of a river connection is crossed every disk, interior be equipped with of the second level filter material cross what the mouth of a river was connected to every disk with described Second filter material water channel.

9. composite filter element according to claim 8, which is characterized in that on the direction of water flow, second level filter material position In the downstream of the first order filter material.

10. composite filter element according to claim 5, which is characterized in that the first order filter material is formed as hollow tubular And both ends are only butted on the filter cylinder and the isolation board respectively, the second level filter material is formed as hollow tubular and both ends are distinguished Only it is butted on the isolation board and the middle separate disk.

11. the composite filter element according to any one of claim 4-10, which is characterized in that the first order filter material is activity Charcoal, the second level filter material are PP cotton.

12. composite filter element according to claim 1 to 10, which is characterized in that first filtration members are PAC Filter core and including at least one of PP cotton, activated carbon fibre, PP cotton Compound filtering material.

13. a kind of water treatment facilities characterized by comprising

Plate of water route, the plate of water route are equipped with filter core connecting seat；

Filter core, the filter core are composite filter element of any of claims 1-12, and the composite filter element removably connects It is connected to the filter core connecting seat.