CN106178647A - Backwash filter - Google Patents
Backwash filter Download PDFInfo
- Publication number
- CN106178647A CN106178647A CN201510363948.8A CN201510363948A CN106178647A CN 106178647 A CN106178647 A CN 106178647A CN 201510363948 A CN201510363948 A CN 201510363948A CN 106178647 A CN106178647 A CN 106178647A
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- Prior art keywords
- filter
- ring
- cup cylinder
- filter element
- leading screw
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Abstract
Backwash filter, with the filter element being located in filter cup cylinder, forms annular chamber between filter element and filter cup cylinder, it is characterised in that: the passage on filter cup cylinder inwall；It is arranged on the screw thread receptacle bottom filter element；Ring below filter element, thus ring follows the rotary motion of filter cup cylinder；Projection on ring inwall；The leading screw of the headed being screwed in screw thread receptacle；At the boss that above-head extends, its with convex to form locking mechanism, protruding process in upper area constructs, thus when filter cup cylinder and ring are rotated in a first direction, boss skims over projection, and when filter cup cylinder and ring rotate along contrary second direction, boss drives projection, if leading screw is positioned at upper area；Protruding process in lower area constructs, thus when filter cup cylinder and ring are rotated in a second direction, boss skims over projection, and when filter cup cylinder and ring are rotated in a first direction, boss drives projection, if leading screw is positioned at lower area.
Description
Technical field
The present invention relates to a kind of filter for installation, comprising: with the accessory of entrance and exit, in liquid stream side
Face arranges substantially cylindrical and fixing with housing filter element between inlet and outlet, this filter house
Part is the backwash filter with outlet side and dump valve, and wherein, this device can switch from the first state
To the second state, in the first state, water flow to outlet from entrance via filter element, at the second
Under state, water flow to outlet side via filter element in opposite direction from entrance in the case of dump valve is opened,
Wherein, filter element is arranged in filter cup cylinder, thus forms annular between filter element and filter cup cylinder
Chamber.
Background technology
This filter for installation is referred to as backwash filter.Liquid stream is the dirtiest through filter.At this
Dirty granule is retained in the case of Zhong.As time goes on, plugged filter.Then, liquid stream reverse flow
Through filter.Water flow to outlet side via filter in opposite direction, and takes away dirty in this case
Grain.Clean filtering device is carried out by this way by backwash.
This device is applied in Domestic water equipment.By supply line be building or individually touchdown point carry
The drinking water of confession is filtered.
Backwash filter device is the most widely known.In order to safeguard filter, before device, it is provided with resistance
Spacing body.When backwash, suitably switching valve system is utilized to guide current in reverse direction through filter.?
In this case, attachment granule in the filter will come off, and is dissolved via outlet side.
By the known a kind of filter for installation with built-in leakage protection mechanism of DE 10 2,005 00 009 A1.
This device uses backwash filter and is set directly at the turbine before backwash filter.Flow through filtration
Any current of device are all detected by turbine and analyze.
DE 10 2,009 003343 A1 discloses a kind of decompressor-filter-device.This decompressor completely encloses
Ground, be positioned in the inner chamber of filter with reaching from the outside.This filter is included in the mistake in filter sleeve
Filter parts, this filter sleeve is arranged in filter cup cylinder.Arranging between decompressor and filter element can
The passage component rotated.This passage component is provided with wing plate.The bottom of filter cup cylinder is provided with outlet side.
When opening outlet side for backwash, wing plate is just by the swash of wave, and then passage component rotates.This device
Structure complexity and rapid wear.
The Chinese patent application of Publication No. CN 102068849 discloses a kind of filter being provided with passage
Device, the lower end of these passages is connected with outlet side.When outlet side is opened, water flows downward, and logical
Road is internal produces whirlpool.This passage is moved along filter element by the rotation of passage component, thus handle
Granule is absorbed from filter surfaces.This known device structure complexity, and manufacture costliness.
Summary of the invention
It is an object of the invention to, propose a kind of backwash filter, its simple structure, and include less
Assembly.The purpose of the present invention also has, and proposes a kind of backwash filter, wherein, can particularly simple activate
Backwash process.
According to the present invention, described purpose is achieved by the device of type described in introductory song, it is characterised in that:
A conduit wall that () extends in the axial direction, these conduit walls are molded on the inwall of filter cup cylinder in couples,
And along the whole height extension of filter cup cylinder (18), and define one or more passage (82), these
Passage upwards and is in a circumferential direction closed, downwardly outlet side opening, and in radial directions towards interior
Portion's opening；
B () is arranged on bottom filter element, upwardly extending, coaxial screw thread receptacle；
C ring that () is rotatably arranged below filter element coaxially, this ring coordinates work with conduit wall
With, thus ring follows the rotary motion of filter cup cylinder；
(d) one or more asymmetrical projection on ring inwall；
E leading screw (28) that () is screwed into from below in screw thread receptacle, this leading screw is with being closed by outlet side
Head (30)；
F () is one or more at boss of extending in a radial direction of head (30) top, described boss with
Asymmetrical on ring inwall convexes to form locking mechanism, wherein,
E the asymmetrical projection on () inwall passes through structure in upper area, thus at filter cup cylinder and circle
When ring is rotated in a first direction, the boss on leading screw skims over (ü berstreichen) asymmetrical projection, and
Filter cup cylinder and ring along contrary second direction rotate time, the boss on leading screw protruding is driven by asymmetrical,
If leading screw is positioned in upper area；
F the asymmetrical projection on () inwall passes through structure in lower area, thus at filter cup cylinder and circle
When ring is rotated in a second direction, the boss on leading screw skims over asymmetrical projection, and in filter cup cylinder and ring
Along contrary first direction rotate time, the boss on leading screw protruding is driven, if leading screw is positioned at by asymmetrical
In lower area.
Therefore, being different from known backwash filter, assembly of the invention make use of for forming passage
Conduit wall, produces whirlpool in the case of outlet side is opened in described passage.Conduit wall is filter cup cylinder
A part.By the rotation of filter cup cylinder, passage utilizes the side of internally positioned opening to move through filtration
Parts.In this case, dirty granule is one after the other inhaled along whole height in each angular regions
Remove, and dissolved via outlet side.Caused by the rotation of filter cup cylinder and implement backwash.In work
Under state, water is flowed into annular chamber from entrance.Water is from annular chamber is flowed into via the filter element of cylindricality
Centre region in, and therefrom in the state filtered downstream to outlet.
Replacing ball valve, this device employs leading screw, and leading screw is screwed in the bottom of filter element.Deviating from the end
The downside in portion, leading screw has head, and outlet side utilizes this head to close.Realized by opening of outlet side
Backwash position.By the rotation of filter cup cylinder, ring also rotates.This ring has at least one in inner side
Protruding.Leading screw has at least one boss, boss radially in above-head i.e. in the region of ring
Extend.When ring rotates, projection encounters the boss on leading screw.According to direction of rotation, boss is used as dop,
Thus leading screw also rotates.And when direction of rotation is contrary, the projection in ring is based on protruding asymmetrical shape
Shape skims over boss.Boss is with protruding thus work as locking mechanism: in one direction, leading screw
Rotate, and in the other directions, leading screw is maintained on its angle position, and grasped independent of filter cup cylinder
Whether indulge.
For assembly of the invention, asymmetry changes along with height.In the lower area of ring,
Protruding through design so that leading screw moves up when rotating in the screw thread fixing with housing.In this situation
Under, head is moved from outlet side.In the upper area of ring, protruding through design so that leading screw
Move down when rotated.In this case, outlet side is closed.One can also be arranged between which
Region, in this region, leading screw can move along both direction.Thus the most only at the end of rotary motion
Regulation locking mechanism.Utilize locking mechanism to ensure that leading screw energy in the vertical direction only moves along certain region.
If filter cup cylinder and then ring rotate through this region, rotary motion is just no longer transferred on leading screw.Leading screw
Stuck or excessive rotation would not there occurs.The people rotating filter cup cylinder obtains a kind of haptic signal, its table
Bright leading screw rotates and finishes, and outlet side completely closes or opens.
Preferably specifying, protruding zone line allows to rotate and the number of turns identical needed for clean filtering device.This can
To be affected by the number of channels on the height of zone line, filter cup cylinder inwall and leading screw pitch.Three
In the case of individual passage, such as, turn three circles and just be enough to clean.Then, each angular regions by passage component "
On outlet " substantially skim over 9 times, and " on loop " is substantially skimmed over 9 times, thus realize thoroughly cleaning.One
Denier arrives end regions, and the rotation of filter cup cylinder just can be reverse.The haptic signal of locking mechanism makes this
State can be hardly perceived easily.Additionally, the superincumbent terminal location of locking mechanism guarantees for clean filtering
Device and rotate any number of turns, wherein, each circle all by haptic signal provide feedback.
Preferably specifying, the protruding whole height along ring extends.Here, as it has been described above, projection need not
The most asymmetric along whole height.Especially, projection can from side rounding in top and/or lower area,
And there is sharp-pointed arris from opposition side.Projection utilizes the side of rounding to skim over boss, and utilizes sharp-pointed limit
Rib transmission rotary motion.
Specifying in a kind of design of the present invention, the conduit wall on filter cup cylinder medial surface is embedded in ring
In recess (Ausbuchtung) on lateral surface, these recesses are formed in the region that wall thickness is less.But also
It is possible that ring is connected with conduit wall securely, or, this device is by filter cup cylinder, conduit wall and circle
Ring forms.Using the advantage having jagged ring is that these parts can be easily for example with note
Molding process prepares.
Filter cup cylinder is preferably fixed on adapter, and this adapter is rotatably connected with described accessory, thus
Adapter, filter cup cylinder and ring form one rotatable group.Especially can be at adapter and/or filter cup
Annular knurl or projection are set on Tong, in order to improve holding property.
According to another design of the present invention, the medial surface of filter cup cylinder is provided with 6 conduit walls, these
Conduit wall forms three passages.But passage more or less can also be used.
According to another design of the present invention, ring has breach, and these breach make passage produce with outlet side
Connect.Filter element is positioned at the bottom of filter cup cylinder.In the region of ring, bottom slightly settles, thus
Ring is contained in subsidence part.Breach is arranged in the region of passage, and defines the company of passage and outlet side
Connect.
Filter element is preferably made up of the filter element being placed coaxially in filter cup cylinder, and this filter element has multiple ring
The rib of shape, these ribs are arranged the most up and down, and are connected with each other by connection strap.This filter element can
To be backwashed well.Just as other assembly, this filter element can be made up of durable plastics.
A kind of preferably design code of the present invention, is provided with passage component, and the upper end of this passage component is passed through
In the exit passageway with outlet in fitting housing, its lower end is connected with filter element, this passage component
Have lug in upper end, lug is inserted in the groove on fitting housing inwall.Guaranteed in this way
Filter parts are in company with rotating.Self-evident, passage component can also construct integratedly with filter element.
In another design of the present invention, it is provided with the cover piece for closed channel, wherein, cover piece in upper end
Corner area between channels uncovered.Cover piece can also be replaced to use alternate manner logical to close
Road.
In a kind of design of the present invention, accessory has the barriers for intercepting entrance.This barriers can be real
Attending device the most simply.
Accompanying drawing explanation
The improvement of the present invention is the theme of dependent claims.DETAILS SECTIONExample with reference to the accompanying drawings.
Fig. 1 is the longitudinal section along the cutting plane A-A backwash filter cutting to being in operating position；
Fig. 2 is along the cutting plane B-B longitudinal section to the backwash filter cutting of Fig. 1, this cutting plane
The angle of 75 ° is have rotated relative to cutting plane A-A；
Fig. 3 shows the backwash filter that be in backwash position similar with Fig. 2；
Fig. 4 shows the backwash filter that be in backwash position similar with Fig. 1；
Fig. 5 is along the cutting plane C-C sectional elevation to the backwash filter cutting of Fig. 1, here,
Leading screw there occurs rotation；
Fig. 6 is the sectional elevation that is in terminal location similar with Fig. 5, and here, leading screw is in company with rotating；
Fig. 7 is along the cutting plane D-D sectional elevation to the backwash filter cutting of Fig. 1；
Fig. 8 is along the cutting plane E-E sectional elevation to the backwash filter cutting of Fig. 1；
Fig. 9 is along the cutting plane F-F sectional elevation to the backwash filter cutting of Fig. 1；
Figure 10 is the three-dimensional exploded view of the backwash filter of Fig. 1；
Figure 11 is the exploded view of the backwash filter of Fig. 1, and wherein, filter element is shown separately；
Figure 12 is the top view of the assembly of the backwash filter of Fig. 1；
Figure 13 illustrates the filter cup cylinder of the backwash filter of the Fig. 1 with cover piece；
Figure 14 illustrates the leading screw of the backwash filter of Fig. 1 individually；
Figure 15 illustrates the ring of the backwash filter of Fig. 1 individually.
Detailed description of the invention
Fig. 1 illustrates that the entirety for drinking water indicates the filter fitting of 10.This accessory 10 has accessory shell
Body 12, fitting housing is with entrance 14 and the outlet 16 that is coaxially disposed with entrance.Fitting housing 12 is permissible
It is installed in pipeline (not shown).In order to intercept entrance, can more preposition common ball valves.Accessory 10
Entrance 14 is utilized to be connected with unshowned drinking water supply mechanism.It is directed to build from the water of outlet 16 outflow
Build the touchdown point in thing.
Filter fitting 10 has the filter cup cylinder 18 being made up of plastics.Fitting housing 12 has connecting tubes
22.Filter cup cylinder 18 is provided with external screw thread 20.Filter cup cylinder 18 utilizes external screw thread 20 to be screwed into be made up of plastics
Adapter 21 in.Being provided with sealing ring 23 in the cannelure of filter cup cylinder upper end, it is relative to adapter
21 seal.Connecting tubes 22 has the cannelure of band sealing ring 25 in lower end.The upper end 27 of adapter 21
It is set on connecting tubes 22.In the axial direction, adapter 21 is maintained by clip 29.Card be clipped in Fig. 8,
In Figure 11 and Figure 12 it may be clearly seen that.Clip 29 snaps onto in the slit 27 in adapter upper area,
As shown in Figure 8.Here, clip is inserted in the notch on connecting tubes 22.Adapter 21 thus
It is positioned at regularly and hermetically on connecting tubes 22, but can be releasably fastened to join together with filter cup cylinder 18
Part housing 12 rotates.
Bottom section at filter cup cylinder 18 is provided with outlet side 26.Outlet side 26 utilizes in operating position and rotates
Head 30 and the sealing member 32 of leading screw 28 are closed.Operating position figure 1 illustrates.Head 30 is being discharged
End 26 is axially movable.
Filter element 48 it has been coaxially disposed in filter cup cylinder 18.Filter element 48 is a working of plastics.Filter element 48 has
Having the rib 52 of multiple annular, these ribs are arranged the most up and down.Rib 52 forms cylindrical shape.Rib 52 leads to
Cross connection strap 60 to be connected with each other.Connection strap 60 has the cross section of triangle, and in fig .9 can be clearly
See.
Annular chamber 38 is formed between the inwall and filter element 48 of filter cup cylinder 18.The upper end of this annular chamber is led to
In entrance 14.The district below the bottom 34 of the closing formed by filter element 48 is led in the lower end of annular chamber 38
In territory 36.Bottom 34 forms the screw thread receptacle 40 of the band female thread 42 being upwardly formed.At screw thread
Receptacle 40 is screwed into rotating threaded shaft 28.Rotating threaded shaft 28 is the most shown separately.By rotating
The rotation of leading screw 28, its head 30 in axial direction moves.When head 30 upwards moves from outlet side 26
Time out, outlet side 26 turns on.Here it is the backwash position described in detail referring to Fig. 3 and Fig. 4.
In fitting housing 12, between entrance 14 and 16, it is formed with wall 46.At the outlet side of wall 46,
It is provided with the passage component 50 narrowed.The upper end of this passage component 50 be passed in fitting housing 12 with go out
In the exit passageways 54 that mouth 16 connects.Lug 57 in passage component 50 upper end is inserted in fitting housing
In groove on 12 inwalls.Lug 57 can be clear that in fig. 11.So, passage component 50
It is securely maintained at its position the most un-rotatably and with housing.The lower end of passage component 50 is together with sealing member 56
It is inserted in filter element 48.Passage component 50 has multiple companies of chuck 55 form in the lower section of sealing member 56
Fitting.Utilize the chuck connector 55 inserted between connection strap 60 of passage component 50, also by filter element 48
It is fixed in fitting housing 12, with anti-rotation.Passage component 50 and filter element 48, filter cup cylinder 18 and be connected
Adapter 22 is extended to the over filter bowl cylinder 18 through the length of connecting tubes 22 coaxially.
Operating position shown in fig. 1 and 2, water flows into along the direction of arrow 44 via entrance 14
In fitting housing 12.There, water is downward through passage component 50 in outside along the direction of arrow 58
It is flowed in annular chamber 38.Water inwardly flows from annular chamber 38 along the direction of arrow 62 via filter element 48.
In the present embodiment, filter element 48 inner hollow, define the centre gangway 64 of water for being filtered.Water from
Centre gangway 64 upwards flow to exit passageway 54 in inside via passage component 50.This represents with arrow 66.
Then water is provided to use further in outlet 16.
The bottom 34 of filter element 48 is supported in ring 68, and is supported on the end of passage 82.Figure 15
Show ring 68 individually.Ring 68 is made up of plastics.The top of ring 68 and outlet side 26 is discharged and is opened
Mouth is concentrically located between the bottom 70 of filter cup cylinder 18 and the bottom 34 of filter element 48.This shows in FIG
Go out.Rotating threaded shaft 28 extend in screw thread receptacle 40 through ring 68.
Ring 68 has three regions 72,74 and 76 of little wall thickness.Correspondingly, in these regions 72,74
With 76 in formed along ring 68 whole height extend recess.The medial surface of filter cup cylinder 18 becomes
Form 6 conduit walls 78,80 over the ground.These conduit walls can be clear that in fig. 5 and fig..Often
Conduit wall 78 and 80 in pair of channels wall, such as Fig. 5, all defines a passage 82.By conduit wall
78 and the 80 passage 82-formed are whole along filter cup cylinder 18 of three passage 82-in the present embodiment
Individual height extends, and extends towards bottom.Support filter there.Cover piece 83 it is provided with in upper end,
Utilize this cover piece that passage 82 is upwards closed.Cover piece 83 can be clear that in Fig. 7 and Figure 13.Lid
The corner area between those passages 82 of part 83 is uncovered.Therefore, water can be at the place of annular chamber
Corner area between passage 82 is passed through.Conduit wall 78,80 is substantially along extending radially into recess
In, these recesses are formed in the annular wall of ring 68 in region 72,74 and 76.This in Figure 5 may be used
It is clear that.In this way ring 68 can not be maintained in filter cup cylinder 18 with forwarding to.For
Install in accessory, represent current direction at the arrow 92 outside fitting housing 12, as in Fig. 10 it can be seen that.
Above the head 30 of rotating threaded shaft 28, rotating threaded shaft 28 forms two and staggers 180 °
Boss 84.These boss 84 can be clear that in Fig. 5 and Figure 14.Medial surface in ring 68
Upper edge, forms the projection 86 of two 180 ° of angles that stagger.These projections can be in Fig. 5 and Figure 15
It is clear that.Protruding 86 have the side 88 of rounding and sharp-pointed arris 90 in upper area.If
Ring moves the most widdershins, and this movement will be braked by boss 84 at arris 90.This
Situation figure 5 illustrates.Due to the side 88 of the rounding in projection 86, rightabout shifting the most counterclockwise
Dynamic holding is feasible.This figure 6 illustrates.In following region, situation is contrary.Here, point
Sharp arris 196 is positioned at opposition side, thus the clockwise rotation of ring 68 is braked.Then, ring 68
Counterclockwise rotate the side 198 due to rounding and keep being feasible.Ring 68 thus such as boss 84
Claw equally work.Allow motion in direction, wherein can hear or feel unique kayser sound
Sound.In the opposite direction, motion is braked.Then, boss 84 is used as dop.Leading screw 28 rotates.
As time goes on the filter being made up of filter element 48 blocks.In this case, dirty granule
Sink on the lateral surface of filter.In order to clean, filter is carried out backwash, say, that water edge
Rightabout flows through filter, and in this case by dirty grain dissolution.Backwash position at Fig. 3 and
Shown in Fig. 4.For backwash, be made up of adapter 21, filter cup cylinder 18 and ring 68 is rotatable
Movable group deasil rotates.For the ease of operation, adapter 21 has rib 94, these ribs for this
Can see in Fig. 10.
When rotating, the sharp-pointed arris in ring 68 encounters boss 84.Leading screw 28 is thus driven to rotate.
Owing to filter element 48 is fixedly disposed with housing together with receptacle 40, when described group of rotational motion, leading screw 28
Direction along arrow 92 is moved upward to the position shown in Fig. 3 and 4 in the axial direction.Outlet side 26
Open.In this case, water is flowed into annular chamber 38 from entrance 14.Water from annular chamber 38 along Fig. 4
In the direction of arrow 96 flow through filter.Annular chamber 38 is downwards by the bottom lock of filter cup cylinder 18.Water
It is flowed into passage 82 via filter in opposite direction from inner chamber.This illustrates with arrow 98 in the diagram.
Passage 82 is connected with the region 36 bottom filter cup cylinder.By the outlet side 26 opened, water is from region 36
Flow downward out via the opening 97 in ring 68, and in passage 82, produce vortex action.This whirlpool is made
With causing water to be flowed into passage 82 via filter in opposite direction from filter interior region, and therefrom
It flow to outlet side 26.In this case, dirty granule is pulled away from filter outer skin, and via discharge
End 26 utilizes backwashing water to be dissolved.Turn in the group being made up of adapter 21, filter cup cylinder 18 and ring 68
Time dynamic, passage 82 skims over all angular regions of filter successively.Clean filtering the most up hill and dale
Device.
When rotating, the head 30 of leading screw 28 moves up together with boss 84.Sharp-pointed arris 196 is along perpendicular
Nogata is to the major part extending past protruding 84.On top, sharp-pointed arris 196 is existed by rounding 88
The upper area of protruding 84 comes off.Then, leading screw 28 no longer moves, and is analogous to dop and jumps
Cross projection.Thus achieve, after rotating several circles, further screw turns will not occur, and apply
Person is it will be noted that filter is cleaned thoroughly.Then, filter can carry out rightabout rotation, leading screw
28 again toward back rotation, thus filter for installation arrives again the operating position shown in Fig. 1.
This device this have the advantage that, installer can not apply excessive power to leading screw 28.Inordinate rotation
The damage thus caused this device is impossible.If it is desired, it is possible to rotate further,
So as clean filtering device.
Claims (10)
1. a filter for installation (10), including: with entrance (14) and outlet (16) accessory (12),
Be arranged in terms of liquid stream between entrance (14) and outlet (16) substantially cylindrical is also fixed with housing
Filter element (48), this filter element is backwashed with outlet side (26) and dump valve (28)
Filter, wherein, this device can switch to the second state, in the first state, water from the first state
Flowing to export (16) via filter element (48) from entrance (14), in a second state, water is being discharged
Valve (28) flow to discharge via filter element (48) from entrance (14) in the case of opening in opposite direction
End (26), wherein, filter element (48) is arranged in filter cup cylinder (18), thus in filter element (48)
And form annular chamber (38) between filter cup cylinder (18),
It is characterized in that:
A conduit wall (78,80) that () extends in the axial direction, described conduit wall is molded into filter cup cylinder in couples
(18) on inwall, and along the whole height extension of passage component (68), and define one or more
Passage (82), described passage upwards and in a circumferential direction closes, downwardly outlet side opening, and in footpath
To side upwardly toward inside opening；
B () is arranged on filter element (48) bottom (34), upwardly extending, coaxial screw thread and receives
Portion (40)；
C ring (68) that () is rotatably arranged coaxially in filter element (48) lower section, this ring is with logical
Road wall (78,80) mating reaction, thus ring (68) follows the rotary motion of filter cup cylinder (18)；
(d) one or more asymmetrical projection (86) on ring (68) inwall；
E () is screwed into the leading screw (28) in screw thread receptacle (40) from below, this leading screw is with by outlet side
(26) head (30) closed；
(f) one or more boss (84) extended in a radial direction in head (30) top, described boss
With on ring (68) inwall asymmetrical projection (86) formed locking mechanism, wherein,
E the asymmetrical projection (86) on () inwall passes through structure in upper area, thus at filter cup
When cylinder (18) and ring (68) are rotated in a first direction, the boss (84) on leading screw (28) skims over non-
Symmetrical projection (86), and when filter cup cylinder (18) and ring (68) rotate along contrary second direction,
Boss (84) on leading screw (28) drives asymmetrical projection (86), if leading screw (28) is positioned at top
In region；
F the asymmetrical projection (86) on () inwall passes through structure in lower area, thus at filter cup
When cylinder (18) and ring (68) are rotated in a second direction, the boss (84) on leading screw (28) skims over non-
Symmetrical projection (86), and when filter cup cylinder (18) and ring (68) rotate along contrary first direction,
Boss (84) on leading screw (28) drives asymmetrical projection (86), if leading screw (28) is positioned at bottom
In region.
2. filter for installation as claimed in claim 1, it is characterised in that protruding (86) are along ring (68)
Whole height extend.
3. filter for installation as claimed in claim 1, it is characterised in that protruding (86) top and/
Or from side (88,198) rounding in lower area, and from opposition side (90,196), there is sharp-pointed limit
Rib.
4. filter for installation as claimed in claim 1, it is characterised in that in filter cup cylinder (18) inner side
The recess (72,74,76) that conduit wall (78,80) on face is embedded on ring (68) lateral surface
In, described recess is formed in the region that wall thickness is less.
5. filter for installation as claimed in claim 1, it is characterised in that filter cup cylinder (18) is fixed on
On adapter (21), this adapter is rotatably connected with described accessory (12), thus adapter (21),
Filter cup cylinder (18) and ring (68) form one rotatable group.
6. filter for installation as claimed in claim 1, it is characterised in that interior at filter cup cylinder (18)
Being provided with 6 conduit walls (78,80) on side, described conduit wall forms three passages (82).
7. filter for installation as claimed in claim 1, it is characterised in that ring (68) has breach,
Described breach makes passage (82) be connected with outlet side (26) generation.
8. filter for installation as claimed in claim 1, it is characterised in that filter element (48) is by coaxially
The filter element (48) that is arranged in filter cup cylinder (18) constitute, this filter element has the rib (52) of multiple annular,
Described rib is arranged the most up and down, and is connected with each other by connection strap (60).
9. filter for installation as claimed in claim 1, it is characterised in that passage component (50), this passage
In the exit passageway (54) connected with outlet (16) that the upper end of parts is passed through in fitting housing (12),
Its lower end is connected with filter element (48), and this passage component has lug (57) in upper end, and lug is inserted into
In groove on fitting housing (12) inwall.
10. filter for installation as claimed in claim 1, it is characterised in that in upper end for closed channel
(82) cover piece (83), wherein, the corner area between passage (82) of cover piece (83) is not coated to
Lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510363948.8A CN106178647B (en) | 2015-05-26 | 2015-05-26 | Back flush filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510363948.8A CN106178647B (en) | 2015-05-26 | 2015-05-26 | Back flush filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106178647A true CN106178647A (en) | 2016-12-07 |
| CN106178647B CN106178647B (en) | 2020-05-19 |
Family
ID=57453173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510363948.8A Active CN106178647B (en) | 2015-05-26 | 2015-05-26 | Back flush filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106178647B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108568144A (en) * | 2017-03-09 | 2018-09-25 | 汉斯萨塞拉思有限责任两合公司 | Flush filter |
| CN108970211A (en) * | 2017-06-01 | 2018-12-11 | 汉斯萨塞拉思有限责任两合公司 | Pressure reducer-filter arrangement |
| DE202017107783U1 (en) | 2017-12-20 | 2019-03-25 | Hans Sasserath Gmbh & Co. Kg | Backwash filter arrangement |
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| IT1140829B (en) * | 1979-04-03 | 1986-10-10 | Gimag Ag | DEVICE FOR THE REGENERATING CLEANING OF A FILTER BED MADE UP OF GRANULAR MATERIAL |
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| JP2001170416A (en) * | 1999-12-20 | 2001-06-26 | Kanagawa Kiki Kogyo Kk | Back washing filtering machine |
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| CN102485309A (en) * | 2010-12-06 | 2012-06-06 | 汉斯萨塞拉思有限责任公司 | Backstreaming flushing filter |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108568144A (en) * | 2017-03-09 | 2018-09-25 | 汉斯萨塞拉思有限责任两合公司 | Flush filter |
| CN108568144B (en) * | 2017-03-09 | 2021-11-19 | 汉斯萨塞拉思有限责任两合公司 | Back flushing filter |
| CN108970211A (en) * | 2017-06-01 | 2018-12-11 | 汉斯萨塞拉思有限责任两合公司 | Pressure reducer-filter arrangement |
| CN108970211B (en) * | 2017-06-01 | 2021-05-07 | 汉斯萨塞拉思有限责任两合公司 | Pressure reducer-filter arrangement |
| DE202017107783U1 (en) | 2017-12-20 | 2019-03-25 | Hans Sasserath Gmbh & Co. Kg | Backwash filter arrangement |
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| CN106178647B (en) | 2020-05-19 |
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