CN207928813U - 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, composite filter element includes：Filter housing defines installation cavity in the filter housing；First filter cylinder and the second filter cylinder, first filter cylinder and second filter cylinder are located in the installation cavity and form the first filtering runner being mutually isolated and the second filtering runner with the filter housing, wherein, it is equipped with the first filtration members for filtering fluid in the first filtering runner in the first filtering runner, the second filtration members for filtering fluid in the second filtering runner are equipped in the second filtering runner；The first filter chamber is defined in first filter cylinder, the second filter chamber is defined in second filter cylinder, the outside wall surface of second filter cylinder is spaced apart to form water space with the internal face of the filter housing, and second filter cylinder has the mouth of a river excessively for being connected to second filter chamber and the water space excessively.Composite filter element according to the present utility model, it is simple and compact for structure, and filter material is not easy to cave in, and can prolong the service life.

Description

Composite filter element and water treatment facilities with it

Technical field

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

Background technology

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 connects, and pipe-line layout is complicated, is easy leak, and structure is not compact, and occupied space is big, causes volume larger, is not easy to dismount, and And filter material is easy to cave in, the service life is shorter.

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 carries Go out one kind and meeting filter core, the composite filter element is simple and compact for structure, and good filtration effect 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, including：Filter housing, filter cylinder define installation cavity in the filter housing；Described One filter cylinder and second filter cylinder be located in the installation cavity and formed with the filter housing the first filtering runner being mutually isolated and Second filtering runner, wherein the first filtering for filtering fluid in the first filtering runner is equipped in the first filtering runner Part, interior the second filtration members being equipped with for filtering fluid in the second filtering runner of the second filtering runner；First filter cylinder The first filter chamber is inside defined, the second filter chamber, outside wall surface and the filter housing of second filter cylinder are defined in second filter cylinder Internal face be spaced apart and formed water space, second filter cylinder, which has, is connected to second filter chamber and the mistake for crossing water space The mouth of a river.

Composite filter element according to the present utility model, it is simple and compact for structure, it occupies little space, it is easy to disassemble, and filter material is not easy It caves in, can prolong the service life, reduce maintenance maintenance cost.

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

Some embodiments according to the present utility model, the center of the central axis of first filter cylinder and second filter cylinder Axis overlaps, and first filtration members are mounted in first filter chamber, and the second filter chamber is defined in second filter cylinder, described Second filtration members are mounted in second filter chamber.

Some embodiments according to the present utility model, second filter cylinder include：First cylinder, shape in first cylinder At there is the first wound packages chamber；Second cylinder, on the axial direction of first cylinder, second cylinder is connected to described first One end of neighbouring first filter cylinder of cylinder, second cylinder are connected with first filter cylinder, shape in second cylinder The second wound packages chamber that first wound packages chamber described in Cheng Youyu is connected to.

Optionally, second filter cylinder further includes：Rib, the rib are set to first cylinder and/or described second Cylinder, to form the water space excessively between second filter cylinder and the filter housing.

Further, the rib is connected with first cylinder and/or second cylinder and is only butted on the filter housing Internal face.

Optionally, the internal diameter of second cylinder is less than the internal diameter of first cylinder, and the rib is multiple, Duo Gesuo Peripheral surface of the rib set on second cylinder and being provided at circumferentially spaced along second cylinder are stated, each rib is along institute State extending radially outwardly for the second cylinder.

Optionally, second filter cylinder further includes：Connector drum, the connector drum are located at first cylinder and described Be connected between second cylinder and respectively with first cylinder and second cylinder, be formed in the connector drum respectively with The connecting cylinder that the first wound packages chamber is connected to the second wound packages chamber is behave affectedly.

Optionally, each rib is connected with first cylinder, the connector drum and second cylinder respectively.

Optionally, the connector drum along first cylinder circumferential direction and radially extend, the outer end of the connector drum It is connected with first cylinder and the inner end of the connector drum is connected with second cylinder.

Further, the connector drum is along the axially extending of first cylinder, axial one end of the connecting cylinder with First cylinder is connected and the axial other end is connected with second cylinder, from first cylinder to second cylinder Direction on, the radial dimension of the connector drum is gradually reduced.

Advantageously, from first cylinder on the direction of second cylinder, the side wall direction of the connector drum The central axis of second cylinder tilts.

Optionally, each rib includes：Muscle ontology, the muscle ontology be located on the peripheral surface of second cylinder and Along extending radially outwardly for second cylinder；Muscle interconnecting piece, the muscle interconnecting piece are connected to the axial end portion of the muscle ontology And it is connected respectively with the connector drum and first cylinder.

Optionally, multiple ribs are arranged along the circumferential uniform intervals of second cylinder.

Optionally, each rib is along the axially extending of second cylinder.

Optionally, each rib extends to institute from the axial end face far from first cylinder of second cylinder State the first cylinder.

Advantageously, in the cross section of second cylinder, the outer edge of multiple ribs is located in same imaginary circle.

Advantageously, in the section of the central axis of excessively described first cylinder, the outer edge of each rib with it is described The outer edge of first cylinder is concordant.

Optionally, in the projection in the axial direction along second cylinder, the outer edge of multiple ribs and described the The outer edge of one cylinder is located in same imaginary circle.

Optionally, the outside of one end far from first cylinder of each rib is equipped with support level.

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, partly will be from following description In become apparent, or recognized by the practice of the utility model.

Description of the drawings

The above-mentioned and/or additional aspect and advantage of the utility model will in the description from combination following accompanying drawings to embodiment Become apparent and is readily appreciated that, wherein：

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

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

Fig. 5 is the enlarged drawing in the portions A that Fig. 4 centre circles show；

Fig. 6 is according to the 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 circles show；

Fig. 8 is the enlarged drawing for the C that Fig. 6 centre circles show；

Fig. 9 is the enlarged drawing for the D that Fig. 6 centre circles show；

Figure 10 is the stereogram 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 upward view of the plate of water route in Figure 10；

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

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

Figure 15 is the upward 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 sectional view of the E-E lines along Figure 16；

Figure 18 is the enlarged drawing in the portions F that Figure 17 centre circles show；

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

Figure 20 is the vertical 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 sectional view of the G-G lines along Figure 21；

Figure 23 is the stereogram of head cover in the composite filter element according to the utility model embodiment；

Figure 24 is the vertical view of the head cover in Figure 23；

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

Figure 26 is the stereogram 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 vertical view of the second filter core in Figure 26；

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

Figure 30 is the enlarged drawing in the portions I that Figure 29 centre circles show；

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

Figure 32 is the stereogram 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 vertical view of the bottom cover in Figure 32；

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

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

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

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

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

Figure 40 is the stereogram 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 vertical view of the central tube of composite filter element；

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Figure 60 is the 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 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 sectional view according to the composite filter element of the utility model some embodiments, wherein the first filter cylinder and interval Disk is integrally formed；

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

Figure 65 is the 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 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 head cover.

Reference numeral：

1000：Element kit；

100：Composite filter element；；200：Second filter core；

1：Filter housing；10：Installation cavity；10a：Cross water space；10a1：First crosses water space；10a2：Second crosses water space；

11：Shell ontology；111：Body；112：Shell bottom；12：Dowel；121：First dowel；122：Second dowel；

2：Filter cylinder：

21：First filter cylinder；210：First filter chamber；211：Cylinder ontology；212：Interconnecting piece；213：Mounting portion；214：Support element； 215；Auxiliary section；2151：Fabrication hole；

2131：Seal tank；214a：Supporting rib；214b supporting table groups；2141：Sub- supporting table；

22：Second filter cylinder；220：Second filter chamber；221：First cylinder；2210：First wound packages chamber；222：Second cylinder； 2220：Second wound packages chamber；223：Connector drum；2230：Connecting cylinder is behave affectedly；224：Rib；2241：Muscle ontology；2242：Muscle connects Portion；

3：Middle separate disk；30：Every disk water hole；31：Every disk ontology；32：Every disk interconnecting piece；321：Sealed groove；33：Annular Sealing element；311：Locating support table；312：Positioning bar；

4：First filtration members；40：Filtration channel；

5：Second filtration members；51：First order filter material；52：Second level filter material；53：Isolation board；

510：First filter material water channel；520：Second filter material water channel；

6：Central tube；60a：First pipe water passage；60b：Second pipe water passage；

61：Tube body；611：Holding tank；62：Catch；621：Keep off ontology；622：Guide part；

7：Head cover；70：Head cover crosses water flow passage 70；71：Cross water pipe；72：Sliding slot；73：Limiting section；74：Top cover support muscle；

721：First extended segment；7211：Support level；722：Second extended segment；

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：First connecting seat；3012：Second connecting seat；3013： Ring packing muscle；3011a：First water hole；3012a：Second water hole.

Specific implementation mode

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, do not indicate or imply the indicated device or element must have a particular orientation, with specific Azimuth configuration 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 this feature.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, can also can be indirectly connected through an intermediary two elements 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 below in conjunction with the accompanying drawings 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, upper and lower directions, left and right directions and front-rear direction respectively by taking the upper and lower directions of diagram, left and right directions and front-rear direction as an example into Row explanation.

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 (such as, it is illustrated that composite filter element 100) 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, with the water purification after output filtering, promotes water quality.

Plate of water route 300 is equipped with the first connecting seat 3011 and the second connecting seat 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 connecting seat 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 according to this practicality The composite filter element 100 of new embodiment.So-called composite filter element makes finger be integrated with the filtration of 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 integrated with the composite filter element 100 of 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, more installation requirements can be met.

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 connecting seat 3011 for being adapted to the first filter core and suitable for connecting Connect the second connecting seat 3012 of the second filter core 200.

First connecting seat 3011 is spaced apart with the second connecting seat 3012, to reserve the peace of the first filter core and the second filter core 200 Dress allows bit space, avoids interfering.Second connecting seat 3012 and the second connecting seat 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 connecting seat 3011 and the second connecting seat 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 conducive to reduce element kit 1000 height dimension.

There are plate ontology 301 at least three water channels 302, each water channel 302 to have 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 200 filtered water purification of the second filter core.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 up in parallel.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 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, in the example of sum as shown in Figure 10, there are four water channel 302, each water channel 302 has the tool of plate ontology 301 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 connecting seat 3011 and the second connecting seat 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 divide Do not extend 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 the mouth of a river. For example, the length direction of plate ontology 301 is the left and right directions of diagram, the first connecting seat 3011 and the second connecting seat 3012 are along left and right Direction interval is arranged, and the first connecting seat 3011 is located at 3012 left side of the second connecting seat, and composite filter element 100 is connected to the first connecting seat 3011 and positioned at the left side of the second filter core 200, at least three water channels 302 are respectively facing composite filter element 100 to a left side for plate ontology 301 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, the mouth of a river can be located at The mouth of a river can be arranged adjacent to composite filter element 100 for the same side of plate of water route 300, convenient to be connect with external road, and plate ontology 301 internal water channel 302 is simple, and 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, convenient for connection exterior line, aesthetics is more preferably.

Optionally, the diameter D at each mouth of a river can meet：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 multiple The diameter at the 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 suitable Answer the Inlet and outlet water demand at the different mouths of a river.

It can lead between first filter core and the first connecting seat 3011 and between the second filter core 200 and the second connecting seat 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 connecting seat 3011 and the second connecting seat 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 peripheral surface of first annular flange Line, the 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 screw-thread fit is connected to first annular flange, and the second filter core 200 is connected to the second annular flange by screw-thread fit.

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 connecting seat 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 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 thread for being suitable for being threadedly coupled with the second filter core 200.First filter core as a result, Screw-thread fit is threadedly connected to second annular groove in first annular groove, the second filter core 200.

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 connection of the first connecting seat 3011 and second At least two ring packing muscle 3013, the ring packing muscle in the first connecting seat 3011 can be equipped in each in seat 3012 3013 are suitable for being tightly connected the first filter core, and the ring packing muscle 3013 in the second connecting seat 3012 is suitable for being tightly connected the second filter core 200, to ensure 302 mutual non-series-water of each water channel.In first connecting seat 3011, it is equipped between adjacent two 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 connecting seat 3012, at least one second water hole 3012a is equipped between adjacent two 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 connecting seat 3011, the second connecting seat 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, in example as shown in fig. 13 that, the ring packing there are three arranged concentric is set in the first connecting seat 3011 Muscle 3013, wherein it is located at an innermost ring packing muscle 3013 around a first water hole 3011a, adjacent two First water hole 3011a there are one being set between ring packing muscle 3013, and a ring packing muscle 3013 on the outermost side First water hole 3011a there are one being set between the internal face of the first connecting seat 3011；Similarly, it is set in the second connecting seat 3012 There are three ring packing muscle 3013, are located at an innermost ring packing muscle 3013 around a second water hole 3012a, phase Second water hole 3012a there are one being set between two adjacent ring packing muscle 3013, and an annular on the outermost side is close Second water hole 3012a there are one being set between envelope muscle 3013 and the internal face of the second connecting seat 3012.

In short, the plate of water route 300 for element kit 1000 of root play the utility model embodiment, simple in structure tight It gathers, aesthetics is good, and occupies little space, and is conducive to rational deployment, convenient for disassembly and assembly laborsaving, can meet 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, include according to the composite filter element 100 of the utility model embodiment：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 mutual 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, in Fig. 4 and example shown in fig. 6, the second filtration members 5 include first order filter material 51 and second level filter material 52, first order filter material 51 and second level filter material 52 are arranged along the flow direction of 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 at the same time 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 includes：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 be equipped with filter core connecting seat (such as, it is illustrated that the first connecting seat 3011), 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. may be mounted 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 Internal face 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 second filter chamber 220 of the first filter chamber 210 and separate plate of water route 300 of neighbouring plate of water route 300, in conjunction with Fig. 4, figure Shown in 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 to flowing through the first filtering runner carries out Filtration treatment, the second filtration members 5 are located in the second filtering runner, and the water to flowing through the second filtering runner is filtered, 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 be carried out at the same time, It when the first filtration members 4 and the second filtration members 5 are the filtration members of type of the same race, 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 be carried out at the same time different filtering functions in the second filtering runner.

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 descriptions 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 connecting seat 3011, the inner peripheral surface of filter housing 1 is equipped with internal 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 sharp With 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：First connection Muscle 121, the first dowel 121 can be set on shell away from a side surface of body 111, and the first dowel 121 can be along shell Bottom 112 radially extends, i.e. the first dowel 121 is located at the outer surface 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, convenient for carrying out holding operation to filter housing 1, dismounting is more convenient laborsaving.

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 side is connected.In other words, the first dowel 121 radially connects the two side of body 111, i.e. the first dowel 121 are located at the diametrically opposite both sides that on the bottom surface at shell bottom 112 and both ends are separately connected body 111, and simple in structure, 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 121 radially spaced settings of the first dowel, 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 112 round and smooth connection of shell bottom, and the first dowel 121 is justified with body 111 Slip, so as to reduce stress concentration, bonding strength is further promoted.

Some embodiments according to the present utility model, dowel 12 include：At least two second dowels 122, at least two A second dowel 122 can be spaced the side surface towards body 111 for being opened in 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 is conducive to the arrangement of runner.

Optionally, as shown in figure 18, each second dowel 122 can be formed as L-shaped, and filter cylinder 2 can be supported on L-shaped On second dowel 122, the peripheral surface of filter cylinder 2 and bottom surface are only against on the second dowel 122 respectively, and stability is good, can be to prevent Only filter cylinder 2 misplaces, and 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, outside wall surface and the filter housing 1 of filter cylinder 2 are defined in filter cylinder 2 Internal face 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 (i.e., it is illustrated that First connecting seat 3011), the first filter chamber 210 is defined in the first filter cylinder 21, the first filtration members 4 are mounted in the first filter chamber 210, The peripheral surface of 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 peace It behave affectedly in 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 In the first filter cylinder 21 axial one end (such as, it is illustrated that lower end), structure is compacter.The second filter is defined in second filter cylinder 22 Chamber 220, the second filtration members 5 are mounted in the second filter chamber 220, and the outside wall surface of the second filter chamber 220 is spaced apart with the internal face of filter housing 1 Formed and first crosses that water space 10a1 be connected to second crosses water space 10a2, first water space 10a1 and second water space 10a2 collectively forms above-mentioned water space 10a excessively.

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

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

The first filter chamber 210 is could be formed 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 be installed on filter core connecting seat (i.e., it is illustrated that the first connecting seat 3011), for example, Mounting portion 213 can stretch into filter core connecting seat and coordinate with ring packing muscle 3013, and mounting portion 213 is connected to the first filter chamber 210, with Allow flow flowing in mounting portion 213 and cylinder ontology 211.

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

Multiple support 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 peripheral surface and adjacent two support elements 214 and crosses water space 10a1, can not only improve the first filter cylinder 21 intensity avoids the first filter cylinder 21 from damaging, and conducive to the concentricity of the first filter cylinder 21 and filter housing 1 is ensured, 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 it is 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 will by interconnecting piece 212 Logical ontology is connected with mounting portion 213, simple and compact for structure.

In some embodiments, multiple support elements 214 may include：Multiple supporting rib 214a, multiple supporting rib 214a can edge The circumferentially-spaced 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 be constituted along the axially extending of cylinder ontology 211 between the peripheral surface and the inner peripheral surface of filter housing 1 of cylinder ontology 211 First cross water space 10a1, 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, to First water space 10a1 excessively can be uniformly distributed in the peripheral surface of an ontology 211, water resistance excessively is small, good filtration effect, 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 the axial end face of 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 face of cylinder ontology 211.It is simple in structure, easy to process, profit In control cost.

In other embodiments, multiple support 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 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 support 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 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 peripheral surface and the inner peripheral surface of filter housing 1 of cylinder ontology 211 What 2141 formation can be run water through crosses water space 10a, more well water.

Optionally, supporting table group 214b can be multigroup, and multigroup supporting table group 214b can be along the axial direction of cylinder ontology 211 Interval setting stops the inner peripheral surface to filter housing 1 so as to multiple positions in the axial direction of cylinder ontology 211, and then can be into one Step ensures 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 support elements 214 may include：Multiple supporting rib 214a With multiple sub- supporting tables 2141.Wherein, multiple supporting rib 214a were set to the peripheral surface of cylinder ontology 211 and along the weeks of cylinder ontology 211 It is arranged to interval, each supporting rib 214a can be set to cylinder ontology along the axially extending of cylinder ontology 211, every sub- supporting table 2141 211 peripheral surface, and every sub- supporting table 2141, along the circumferentially extending of cylinder ontology 211, every sub- supporting table 2141 can be located at Between two adjacent supporting rib 214a, and every sub- supporting table 2141 is spaced apart with two adjacent supporting rib 214a.

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 Multiple supporting rib 214a and multiple sub- supporting tables 2141 can be utilized, which to improve cylinder ontology 211 and filter housing 1, has preferably concentricity, It is smooth to cross 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 support elements 214 Edge can be located at same imaginary circle on, to multiple support 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 (such as, it is illustrated that upper end) can be equipped be suitable for accommodate 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 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 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 with 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 multiple 2131 axially spaced settings of sealing tank.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 Low, reliability is high.

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 support elements.So as to facilitate processing, assembly process is omitted, is conducive to Control cost, and assembly precision can be promoted, conducive to concentricity is further ensured that.

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

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

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

Central tube 6 the other end (i.e., it is illustrated that upper end) pass through head cover 7, head cover 7 be equipped with 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 raising head cover 7 and water There is serious bias, can avoid close in the concentricity of ring packing muscle 3013 on road plate 300 when can prevent head cover 7 from assembling Seal structure deviates, and prevents string water phenomenon, in addition it can prevent the first filter material 4 eccentric, can improve assembly precision, 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 direction The central axis of filter cylinder 2 extends, sliding slot 72 be set to head cover 7 surface (i.e., it is illustrated that upper surface), in prolonging perpendicular to sliding slot 72 It stretches on the section in direction, sliding slot 72 may include：First extended segment 721 and the second extended segment 722.Specifically, first extends One end (lower end of diagram) of section 721 can be connected with head cover 7, and the other end of the first extended segment 721 extends far from head cover 7, One end of 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 is remote Central axis 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 head 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 head 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 721 outwardly extending second extended segment 722 of the first extended segment, the surface of head 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 head cover 7 is relatively rotated with filter cylinder 2, 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, the front end in the slide-in direction of auxiliary section 215,7 Shanghai of head cover Equipped with limiting section 73, auxiliary section 215 is limited afterwards in place with sliding into sliding slot 72 in auxiliary section 215 and sliding, can be avoided 215 excessive slip of auxiliary section, and the fitment stability of auxiliary section 215 and sliding slot 72 can be improved, so can make head cover 7 with The cooperation upper frame of filter cylinder 2 is more reliable and more stable, and sealing performance is further promoted.

Optionally, limiting section 73 is formed as limiting plate, and limiting plate extends respectively at the first extended segment 721, second Section 722 is connected with head cover 7.It is possible thereby to be limited between head cover 7, the first extended segment 721, the second extended segment 722 and limiting plate The sliding slot 72 for going out radial outside and glide direction rear open 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 as illustrated in figures 19 and 20, on auxiliary section 215 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 can improve stability.

In some embodiments, sliding slot 72 is the multiple of the circumferentially-spaced distribution along head 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 which head cover 7 and the rotation that fits through of filter cylinder 2 is made once to move It completes, operation facility is efficient, and seals uniform and stable.

Some embodiments according to the present utility model, as shown in figure 23 and figure 24, the peripheral surface of head cover 7 can be equipped with along head 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 internal face for being butted on filter cylinder 2.

In this way, the inner peripheral surface of the peripheral surface of head cover 7, filter cylinder 2 and adjacent two top cover support muscle 74 can construct it is fair Perhaps flow by head cover cross water flow passage 70, the water in filter chamber can flow to the first filtering from 7 water passage runner 70 of head cover Part 4, can be from the second pipe water passage 60b outflows between the first filtration members 4 and central tube 6 after the filtering of the first filtration members 4 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 located at In the installation cavity 10 of filter housing 1, and the second filter cylinder 22 be located at the first filter cylinder 21 axial one end (such as, it is illustrated that lower end), The second filter chamber 220 can be defined in two filter cylinders 22, can be spaced between the outside wall surface and the internal face of filter housing 1 of the second filter cylinder 22 At the second water space 10a2 excessively, second crosses water space 10a2 is connected to form water space 10a open form with the first water space 10a1 excessively.

Second filter cylinder 22 may include：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 second cylinder 222 is connected to Could be formed in one end of the first filter cylinder 21, the second cylinder 222 for first cylinder 221 is connected to the first wound packages chamber 2210 The second wound packages chamber 2220.

As shown in Figure 26, Figure 29 and Figure 31, the internal diameter of the second cylinder 222 is less than the internal diameter of the first cylinder 221, the second cylinder 222 outer diameter is less than the outer diameter of the first cylinder 221, and multiple ribs 224 can be set to the 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 be along the second entire body cylinder 222 radially outward Extend and is connected with the first cylinder 221.The first cylinder 221 is connected with the second cylinder 222 as a result, the peripheral surface of the second cylinder 222 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 are configured to rocket barrel structure.

As a result, be conducive to enhancing the second filter cylinder 22 structural strength, can reduce reduce the second filter chamber 220 deform upon it is general Rate can also be conducive to ensure that the circularity of the second filter chamber 220 is indeformable, can be that the second filtration members 5 in the second filter chamber 220 are provided with Effect protection, avoids the second filtration members 5 from collapsing, and stability is good, and reliability is high, can extend the service life of the second filtration members 5.

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 includes： 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 first cylinder 221 and connector drum 223 intensity of itself, and the first cylinder 221 and connector drum 223 can be strengthened Junction and the junction of connector drum 223 and the second cylinder 222 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.It is simple in structure, it is easy to process.

In further embodiments, as shown in Figure 26, Figure 27 and Figure 29, connector drum 223 can be along the axis of the first cylinder 221 To extension, axial one end of connector drum 223 (such as, it is illustrated that lower end) can be connected with the first cylinder 221, and connector drum 223 the axial other end (i.e., it is illustrated that upper end) 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 It tilts, so as to optimize the internal structure of the second filter chamber 220, the layout convenient for the second filter material 5 and installation.

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 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 that the second filter cylinder 22 provides support and protective effect uniformly in the circumferential direction, stiffening 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 axial end face of second cylinder 222 far from first cylinder 221 (for example, The upper surface of diagram) extend to the first cylinder 221, that is, and each rib 224 extends from the 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 ensure 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 and the peripheral surface of the first entire body of each rib 224 are coplanar.It can be conducive to control the as a result, The radial full-size of two filter cylinders 22, to conducive to the concentricity of the second filter cylinder 22 and filter housing 1 is ensured, reduce occupied space, profit In layout, more installation requirements can be met.

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 coordinating 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 concrete 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 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) only can 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 be connected to the bottom of the second filter cylinder 22 as a result, bottom cover 8 in the circumferential with Second filter cylinder 22 seals, and second outside bottom cover 8 can be crossed the in water space 10a2 and the second filter cylinder 22 by bottom cover water hole 80 Two filter chambers 220 are connected to, and so as to facilitate the installation of the second filtration members 5, it is empty to be conducive to the rationally inside using the second filter chamber 220 Between.

In conjunction with shown in Figure 32, Figure 34 and Figure 35, annular interconnecting piece 212 may include：The first connecting portion 821 and ring of annular The second connecting portion 822 of shape, 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 with first connecting portion 821 set on the inside of first connecting portion 821, first connecting portion 821 The installation groove 823 of annular can be formed between second connecting portion 822, filter cylinder 2 can be plugged in first connecting portion 821 and the Between two interconnecting pieces 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, structure Simple and compact, 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 are tightly connected with first connecting portion 821, alternatively, filter cylinder 2 is tightly connected with second connecting portion 822, 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 reduce the probability that bottom cover 8 surprisingly falls off, sealing reliability is high.

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, fluid 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 fluid sealant sealing.In other words, 2 grafting of filter cylinder connects with first connecting portion 821 and second In annular mounting recess 823 between socket part 822, annular is washed, and fluid 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 ensure preferably sealing effect, and be conducive to Control cost.

Optionally, filter cylinder 2 can pass through hot-melt adhesive paste with lid interconnecting piece 82.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 revolving weldering or ultrasonic bonding.As a result, The connection of filter cylinder 2 and 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 compacter.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 flow flows through bottom cover water hole 80, flow pair when avoiding hydraulic pressure excessive Second filter material 5 generates acute impact, can be that the second filter material 5 provides protection to a certain extent.

In the embodiment that Fig. 4 and Fig. 6 illustrates, composite filter element 100 further includes middle separate disk 3.Below in conjunction with the accompanying drawings 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 middle separate disk 3 separate 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, middle separate disk 3 crosses second in water flow passage channel 60a and the second filter cylinder 22 equipped with the first pipe for being connected in central tube 6 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 With annular every disk interconnecting piece 32, every disk ontology 31 can along the first filter cylinder 21 circumferential direction and radially extend, can every disk water hole 30 Set on every disk ontology 31, be connected with the sealing of the second filter cylinder 22 every disk ontology 31, every disk interconnecting piece 32 can with every disk ontology 31 outside Week, and can be along the axially extending of the first filter cylinder 21 every disk interconnecting piece 32 along being connected, can be with the first filter cylinder 21 every disk interconnecting piece 32 Sealing is 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 Between interconnecting piece 32 can be equipped with lip ring 33, i.e., the inner peripheral surface of the first filter cylinder 21 with every disk interconnecting piece 32 peripheral surface it Between by lip ring 33 realize seal, it is convenient for disassembly and assembly, be conducive to control cost.

Further, the sealed groove of annular is equipped with every upper casing one of in disk interconnecting piece 32 and the first filter cylinder 21 321, lip ring 33 is set in sealed groove 321, can be limited in sealed groove 321 lip ring 33, be avoided Sealing element misplaces, and sealing reliability is further promoted.In example as shown in Figure 4, sealed groove 321 is set to every disk interconnecting piece 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 dress Match, can effective control 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, to 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 that can be equipped with to surround on disk ontology 31 every disk 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 coordinate locating support table 311, central tube 6 can be stably installed on middle separate disk 3.

Optionally, one of in positioning bar 312 and central tube 6 on can be equipped with holding tank 611, 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, in the example of attached drawing signal, central tube 6 is equipped with holding tank 611, seals snare 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, sealing ring center seal Gap between pipe 6 and positioning bar 312 will be connected to every disk water hole 30 with the first pipe water passage 60a.It is simple in structure tight It gathers, sealing effect is good, and dismounts facility, 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 water passage 60a, the first pipe water passage 60a being connected to the second filter chamber 220 and the first filter chamber 210 can be formed with mutually It is isolated.Central tube 6 can be connected to across the first filter chamber 210 with the second filter chamber 220 as a result, realize the first filtering runner and the Two filter the mutually isolated of runners, so that the first filtering runner and the second filtering runner is individually filtered, are independent of each other, structure is tight It gathers, 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 catch 62, wherein the first pipe water passage 60a is formed in tube body 61, multiple catch 62 can be set to tube body 61 peripheral surface, and multiple catch 62 being provided at circumferentially spaced along tube body 61, each catch 62 can be along tube body 61 It extends radially outwardly, to form the second pipe water passage 60b between adjacent two catch 62 and the first filter material 4.

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

Multiple catch 62 can play a supporting role to the first filter material 4 as a result, can improve the intensity of the second filter material 5, prevent Only filter material deformation is caved in, and can improve filtering stability, 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 availability ratio is high.

Optionally, as shown in Figure 40 and Figure 42, multiple catch 62 can be arranged along the circumferential uniform intervals of tube body 61, to Can multiple equally distributed runners be formed in the peripheral surface of tube body 61 again, cross 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 catch 62 can respectively with tube body 61 There is gap in the axial direction of tube body 61.That is, each catch 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 catch 62 may include：Keep off 621 He of ontology Guide part 622, wherein keep off ontology 621 and may be provided on the peripheral surface of tube body 61, and keep off ontology 621 can radially prolong It stretches, guide part 622 can be connected to the axial end portion when 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 catch 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, when mounted, 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 efficiency of assembling, 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 the axial end face of 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 Can be circle, i.e. tube body 61 is pipe, 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 catch 62 can be located in same imaginary circle, and multiple catch 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, good filtration effect.

As shown in figure 43, the axial both ends of tube body 61 are respectively equipped with the holding tank 611 suitable for accommodating sealing element, holding tank 611 are set to the 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 connecting seat 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 mutual 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 catch 62 can be integrally formed, Convenient processing and manufacture, and assembly process can be omitted, the error for avoiding assembly from bringing, the first filter material 4 and the first filter chamber 210 Concentricity also simultaneously with ensure, cross the smooth stabilization of water, filter effect is more preferably.

Wherein, central tube 6, middle separate disk 3 coordinate 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 installation of the first filtration members 4 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 mounted on In second filter chamber 220.Wherein, on the direction of flow, the second filtration members 5 can be located at the downstream of the first filtration members 4, in filter housing 1 Axial direction on, 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 length L2 of the second level filter material 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.It waited for The water of filter can first pass through the filtering of the first filtration members 4, be filtered 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 flow, the second filtration members 5 are located at the downstream of the first filtration members 4, can be with It is that 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 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 and filters again later.

Optionally, the minimum diameter of filter housing 1 can be D1, and the maximum outside diameter of filter cylinder 2, which is D2, D1 and D2, to be met：D1-D2 ≥0.5mm.In other words, the annular formed between the inner peripheral surface of filter housing 1 and the peripheral surface of filter cylinder 2 crosses water space 10a, the gap Size can be in 0.25mm or more values.For example, can be with 0.5mm's between the inner peripheral surface and the peripheral surface of filter cylinder 2 of filter housing 1 Gap, at this point, D1-D2=10mm.Certainly, the utility model is without being limited thereto, the inner peripheral surface of filter housing 1 and the peripheral surface of filter cylinder 2 it Between the gap that is formed can also be other sizes.In this way, the mistake water resistance in the first filtering runner can be reduced, kept water suitable Freely, filter effect can be promoted, water purification output is stablized.

Optionally, the minimum diameter d of the first pipe water passage 60a in central tube 6 can meet：d≥3mm.For example, the The internal diameter of one pipe water passage 60a can be 3mm, 5mm, 10mm etc..So as to reduce the water that the first pipe is crossed in water flow passage 60a Pressure, good filtration effect, water purification export smooth stabilization.

Some embodiments according to the present utility model, each in the first filtration members 4 and the second filtration members 5 may include At least one filter material can pointedly be crossed 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 in an 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 (example of neighbouring first filtration members 4 of the first first order filter material 51 Such as, it is illustrated that upper end), can be spaced apart by isolation board 53 between first order filter material 51 and second level filter material 52.In this way, first Grade filter material 51 and second level filter material 52 can be arranged in the axial direction, and flow is made to flow through the second filter chamber from water space 10a excessively 220 pass through first order filter material 51 and the realization double-filtration of second level filter material 52, knot successively when being flowed to the first pipe filtration channel 6a Structure simple and compact, good filtration effect.

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, the first filter material water channel 510 are connected to water space 10a is crossed in 52, the second filter material water channel 520 and First pipe water passage 60a connections.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 the first pipe is flowed to 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 not limited to strainer, filter cloth, activated carbon, PP cottons etc..The utility model, which does not do this, to be had Body limits.

With reference to Fig. 4 and Fig. 6 detailed descriptions 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 connecting seat 3011,200 reverse osmosis filter of the second filter core Core is installed on the second connecting seat 3012, the central axis of the central axis of composite filter element 100 and the second filter core 200 vertically side To 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 mutual 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, head 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, then flowed between the first filter material 4 and tube body 61 from outside to inside 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 200 filtered water of the second filter core by plate 300 by water, 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 crosses water space 10a2, then flows into the second filter chamber 220 from the bottom cover water hole 80 on bottom cover 8, by from the first filter material water channel 510 filter by first order filter material 51, then second level filter material 52 are flowed to from the edge of isolation board 53, by second level filter material 52 The second filter material water channel 520 is flowed into after filtering, by middle separate disk 3 every disk water hole 30, then from the first pipe water passage 60a Plate of water route 300 is flowed to, completes the postposition filter process in the first filtering runner, then through plate of water route 300, it is net after output filtering Water.

In above-described embodiment of the utility model, the mistake in filter process and the second filtering runner in the first filtering runner Cheng Butong is filtered, and coordinates 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.

Include the filter core group according to the utility model above-described embodiment according to the water treatment facilities of the utility model 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, good filtration effect, and simple and compact for structure, is conducive to rational deployment, convenient for disassembly and assembly laborsaving, can save dimension Maintenance cost is repaiied, in addition, reducing occupied space, more installation requirements can be met.

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 are all for those of ordinary skills known, are 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： Can these embodiments be carried out with a variety of variations in the case where not departing from the principles of the present invention and objective, modification, replaced And modification, the scope of the utility model are limited by claim and its equivalent.

Claims (20)

1. a kind of composite filter element, which is characterized in that including：

Filter housing defines installation cavity in the filter housing；

First filter cylinder and the second filter cylinder, first filter cylinder and second filter cylinder be located in the installation cavity and with the filter housing Form the first filtering runner being mutually isolated and the second filtering runner, wherein be equipped in the first filtering runner for filtering First filtration members of fluid in first filtering runner, the second filtering runner is interior to be equipped with for filtering the second interior stream of filtering runner Second filtration members of body；The first filter chamber is defined in first filter cylinder, and the second filter chamber is defined in second filter cylinder, it is described The outside wall surface of second filter cylinder is spaced apart to form water space with the internal face of the filter housing, and second filter cylinder has described in connection The mouth of a river excessively of second filter chamber and the water space excessively.

2. composite filter element according to claim 1, which is characterized in that the central axis of first filter cylinder and described second The central axis of filter cylinder overlaps, and first filtration members are mounted in first filter chamber, and the is defined in second filter cylinder Two filter chambers, second filtration members are mounted in second filter chamber.

3. composite filter element according to claim 1, which is characterized in that second filter cylinder includes：

First cylinder is formed with the first wound packages chamber in first cylinder；

Second cylinder, on the axial direction of first cylinder, second cylinder is connected to the neighbouring of first cylinder One end of first filter cylinder, second cylinder are connected with first filter cylinder, be formed in second cylinder with it is described Second wound packages chamber of the first wound packages chamber connection.

4. composite filter element according to claim 3, which is characterized in that second filter cylinder further includes：

Rib, the rib is set to first cylinder and/or second cylinder, in second filter cylinder and the filter housing Between formed it is described cross water space.

5. composite filter element according to claim 4, which is characterized in that the rib and first cylinder and/or described Second cylinder is connected and is only butted on the internal face of the filter housing.

6. composite filter element according to claim 4, which is characterized in that the internal diameter of second cylinder is less than described first The internal diameter of body, the rib are multiple, and multiple ribs are set to the peripheral surface of second cylinder and along second cylinder Be provided at circumferentially spaced, each rib extending radially outwardly along second cylinder.

7. composite filter element according to claim 4, which is characterized in that second filter cylinder further includes：

Connector drum, the connector drum be located between first cylinder and second cylinder and respectively with described first Body is connected with second cylinder, be formed in the connector drum respectively with the first wound packages chamber and the second wound packages chamber The connecting cylinder of connection is behave affectedly.

8. composite filter element according to claim 7, which is characterized in that each rib respectively with first cylinder, The connector drum is connected with second cylinder.

9. composite filter element according to claim 7, which is characterized in that circumferential direction of the connector drum along first cylinder With radially extend, the outer end of the connector drum is connected with first cylinder and the inner end of the connector drum and described second Cylinder is connected.

10. composite filter element according to claim 8, which is characterized in that axis of the connector drum along first cylinder To extension, axial one end of the connecting cylinder is connected with first cylinder and the axial other end is connected with second cylinder, From first cylinder, on the direction of second cylinder, the radial dimension of the connector drum is gradually reduced.

11. composite filter element according to claim 10, which is characterized in that from first cylinder to second cylinder Direction on, the central axis of the side wall of the connector drum towards second cylinder tilts.

12. composite filter element according to claim 6, which is characterized in that each the rib includes：

Muscle ontology, the muscle ontology are located at radially outward prolonging on the peripheral surface of second cylinder and along second cylinder It stretches；

Muscle interconnecting piece, the muscle interconnecting piece be connected to the axial end portion of the muscle ontology and respectively with the connector drum and described First cylinder is connected.

13. according to the composite filter element described in any one of claim 4-12, which is characterized in that multiple ribs are along described The circumferential uniform intervals of two cylinders are arranged.

14. according to the composite filter element described in any one of claim 4-12, which is characterized in that each rib is along described the Two cylinders it is axially extending.

15. according to the composite filter element described in any one of claim 4-12, which is characterized in that each rib is from described the The axial end face far from first cylinder of two cylinders extends to first cylinder.

16. according to the composite filter element described in any one of claim 4-12, which is characterized in that in the transversal of second cylinder In face, the outer edge of multiple ribs is located in same imaginary circle.

17. according to the composite filter element described in any one of claim 4-12, which is characterized in that in excessively described first cylinder In the section of mandrel line, the outer edge of each rib is concordant with the outer edge of the first cylinder.

18. according to the composite filter element described in any one of claim 6-12, which is characterized in that in the axis along second cylinder In upward projection, the outer edge of multiple ribs and the outer edge of first cylinder are located in same imaginary circle.

19. according to the composite filter element described in any one of claim 6-12, which is characterized in that the separate institute of each rib The outside for stating one end of the first cylinder is equipped with support level.

20. a kind of water treatment facilities, which is characterized in that including：

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

Filter core, the filter core are the composite filter element described in any one of claim 1-19, and the composite filter element removably connects It is connected to the filter core connecting seat.