CN205627264U - Filter backwash device - Google Patents
Filter backwash device Download PDFInfo
- Publication number
- CN205627264U CN205627264U CN201620509189.1U CN201620509189U CN205627264U CN 205627264 U CN205627264 U CN 205627264U CN 201620509189 U CN201620509189 U CN 201620509189U CN 205627264 U CN205627264 U CN 205627264U
- Authority
- CN
- China
- Prior art keywords
- water inlet
- skeleton
- filter
- sealing ring
- disk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model provides a filter backwash device, make the skeleton wash hair along gliding recoil about it on the skeleton including the cover, open at same height the upper end of skeleton has a plurality of water inlet no. 1, the disc that still has outside extension on the skeleton, open at same height the upper end that the recoil was washed hair there is a plurality of water inlet no. 2, the recoil is washed hair the lower extreme and is had outstanding annular cover cap, the cover cap sleeve is just ability and the disc seamless contact in the outside outside the disc, cover cap up end is opened there are a plurality of water inlets no. 3, the recoil is washed hair the lower extreme and is equipped with the banding cardboard of a plurality of length, it has a plurality of confession cardboard male card holes to open on the disc, a water inlet department still is equipped with little filter screen. Set up little filter screen, can keep apart impurity outside the skeleton when the back flush, prevent that impurity from pouring filtration rear end water route, causes secondary pollution.
Description
Technical field
This utility model belongs to filter technology field, relates to the backwash of a kind of filter
Device.
Background technology
Filter is when filtering, and the little granule of impurity easily blocks the filter opening of drainage screen, for this
Need cleaned filter screen.
The utility model patent CN201420630652.9 announced such as China, announces a kind of anti-
Rinsing fore filter, including backwash valve, described backwash valve is provided with horizontal direction and opens
The water inlet port of mouth and water outlet port, this backwash valve upper end offers backwash valve body end
Mouthful, this backwash valve body port is sequentially arranged with backwash spool, recoil
Wash valve seals, backwash valve body top cover and backwash knob；This backwash valve lower end is even
It is connected to filtration barrel body, in described filtration barrel body, filter element is installed；Described filtration barrel body lower end
Connect and have blowdown valve body.
The utility model application file that and for example China announces, application number:
201510873259.1, announce a kind of fore filter, be followed successively by from top to bottom connecting portion,
Filter house, blowoff valve, the side of described connecting portion arranges active water water inlet, therewith
Corresponding opposite side was provided with drainage outlet, the bottom end of described connecting portion
It is provided with in filter house interface and bottom the filter element with filter house interface concentric at Kou to connect
Mouthful, described filter house is followed successively by filter house overcoat, filter element and scraping and brushing apparatus from outside to inside,
Scraping and brushing apparatus one end is fixed in filter element interface and entirety is in filter element, and filter element one end is overlapped
Outside filter element interface and while rotating blowoff valve, drive the unitary rotation of filter element, shape
Become the motion of screen surface wiper relative with scraping and brushing apparatus, reach to remove the miscellaneous of screen surface
Matter purpose.
Above-mentioned two patent is all band backwashing function, but does not all have backwash special
Filter screen, when changing water route backwash, easily there being impurity to pour filtration rear end in pipeline
Water route, causes secondary pollution.
Utility model content
The purpose of this utility model is to there are the problems referred to above for existing technology, it is proposed that
A kind of back purge system of filter, can by the impurity back flush in drainage screen out,
Reach the purpose of cleaned filter screen.
The purpose of this utility model can be realized by following technical proposal: a kind of filter
Back purge system, filter includes filter flask and the bone cylindrically being arranged in filter flask
Frame, skeleton periphery is provided with drainage screen, it is characterised in that this back purge system includes being enclosed within
Skeleton upper end makes the backwash head that skeleton can slide up and down along it, and the upper end of skeleton is same
One highly has several water inlets one, skeleton also has outward extending disk, instead
The upper end of syringe pipe has several water inlets two at sustained height, and backwash head lower end has
Having the cap of prominent annular, cap is enclosed within outside disk and can seamless with outside disk contact,
Cap upper surface has some water inlets three, and backwash head lower end is provided with some strips
Clamp, disk has some hole clippings inserted for clamp, when skeleton moves down, described
Water inlet one can be backwashed head closure, and described water inlet two can be blocked by skeleton；Work as bone
When moving on frame, described water inlet one connects with water inlet two, and cap and disk are without sewing up
Touch, at described water inlet one, be additionally provided with little filter screen.
When filter is in normal filtration state, backwash head moves on to certain altitude, this
Time, water inlet one is backwashed head closure, and water inlet two is blocked by skeleton, and water can only be from
Water inlet three enters and now disk and cap contact, so water can enter into
In filter flask, then enter in skeleton from drainage screen, then flow out from skeleton upper port, complete
Filtration operation.When drainage screen needs to clean, backwash head moves down, and makes water inlet one and enters
The mouth of a river two is the most right, and cap is enclosed within that disk is outer and seamless with disk to be contacted, and described water cannot
Entering in filter flask from water inlet three, water enters in skeleton from water inlet one and water inlet two,
Then entering into filter flask from drainage screen, the impurity in drainage screen filter opening is along with reverse flow
Return in filter flask together, then discharge from filter flask bottom blow-down mouth.Clamp is always positioned at hole clipping
In, prevent backwash head from rotating and causing water inlet one not line up with water inlet two.Little filter
Net is possible to prevent the impurity when backwash to enter in skeleton from water inlet one.
Further, skeleton upper end has the groove of annular, is provided with sealing ring on the upside of groove
One, it is provided with sealing ring two on the downside of groove, backwash head is moving rearward recess with water inlet two just
Right.Sealing ring one and sealing ring two fit are used for blocking water inlet two.
Further, described water inlet one is cased with the sealing ring three of annular, sealing ring
Two upsides being positioned at water inlet one.Sealing ring two and sealing ring three are used for blocking water inlet one
Both sides up and down, prevent water from flowing between filter flask and drainage screen from water inlet about one both sides
Space in.
Further, water inlet one is identical with water inlet two quantity, and position is identical.Water inlet
Mouthful one and water inlet two quantity and position all one_to_one corresponding.
Further, described water inlet one has four and circumference is uniform.
Further, the outside of described disk is cased with sealing ring four, and sealing ring four can be with cover
Lean inside cap.Sealing ring four increases sealing effectiveness when disk contacts with cap.
Further, disk has the step of annular, inside cap, be provided with annular
Baffle ring, baffle ring when backwash head moves down with the leaning of step, clamp is positioned at baffle ring
Side, water inlet two is positioned at outside baffle ring.When disk and cap are in close contact, step with
Baffle ring is also in close contact, and when preventing backwash, the sewage in filter flask flows out from hole clipping.
Further, outside step, it is cased with sealing ring five, phase inside sealing ring five and baffle ring
Against.Sealing ring five increases sealing effectiveness when step contacts with baffle ring.
Compared with prior art, the back purge system of this filter is simple to operate, only need to lead to
Crossing external force drives skeleton to move up and down, and just can reach to filter the switching with backwash.Pass through
Changing the flow path of water, making water is to flow in skeleton from drainage screen when filtering,
It is to flow to drainage screen in skeleton during backwash, can effectively make to be attached to drainage screen wall
Coming off discharge with the impurity in filter opening, flushing process, without configuring power, exempts from dismounting or more
Change drainage screen, little filter screen be set, can when backwash impurities outside skeleton,
Prevent impurity from pouring filtration water route, rear end, cause secondary pollution.
Accompanying drawing explanation
Fig. 1 is the back purge system structural representation in backwash state of this filter.
Fig. 2 is the structural representation of this filter normal filtration state.
Fig. 3 is the cooperation schematic diagram of the backwash state that is in of skeleton and backwash head.
Fig. 4 is the cooperation at another visual angle being in backwash state of skeleton and backwash head
Schematic diagram.
Fig. 5 is the cooperation schematic diagram that skeleton and backwash head are in normal filtration state.
Fig. 6 is the structural representation of backwash head.
Fig. 7 is the structural representation of skeleton.
In figure 1, filter flask；2, skeleton；3, drainage screen；4, backwash head；5, enter
The mouth of a river one；6, disk；7, water inlet two；8, cap；9, water inlet three；10、
Clamp；11, hole clipping；12, groove；13, sealing ring one；14, sealing ring two；15、
Sealing ring three；16, sealing ring four；17, step；18, baffle ring；19, sealing ring five；
20, little filter screen.
Detailed description of the invention
The following is specific embodiment of the utility model and combine accompanying drawing, to this utility model
Technical scheme be further described, but this utility model is not limited to these embodiments.
As it is shown in figure 1, filter include filter flask 1 and be arranged in filter flask 1 in cylinder
The skeleton 2 of shape, skeleton 2 periphery is provided with drainage screen 3, is arranged with head outside backwash drift,
Head left port is water inlet, and head right output port is water outlet.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, the backwash dress of this filter
Putting and include skeleton 2 and backwash head 4, skeleton 2 slides up and down along backwash head 4,
The upper end of skeleton 2 has several water inlets 1 at sustained height, and skeleton 2 also has
Having outward extending disk 6, the upper end of backwash head 4 has several at sustained height
Water inlet 27, backwash head 4 lower end has the cap 8 of prominent annular, cap 8
It is enclosed within outside disk 6 and can seamless with outside disk 6 contact, if cap 8 upper surface has
Dry water inlet 39, backwash head 4 lower end is provided with the clamp 10 of some strips, disk
Have on 6 some for clamp 10 insert hole clipping 11, when skeleton 2 moves down, described in enter
The mouth of a river 1 can be backwashed 4 closure, and described water inlet 27 can be blocked by skeleton 2；
When moving on skeleton 2, described water inlet 1 connects with water inlet 27, and cap 8
Seamless with disk 6 contact.
Skeleton 2 upper end has the groove 12 of annular, is provided with sealing ring one on the upside of groove 12
13, be provided with sealing ring 2 14 on the downside of groove 12, backwash head 4 moves rearward recess 12 with
Water inlet 27 is the most right.Sealing ring 1 and sealing ring 2 14 fit 12 are used for sealing
Stifled water inlet 27.
Being cased with the sealing ring 3 15 of annular on water inlet 1, sealing ring 2 14 is positioned at
The upside of water inlet 1.Sealing ring 2 14 and sealing ring 3 15 are used for blocking water inlet
The both sides up and down of 1, prevent water from flowing to filter flask 1 and mistake from water inlet about one 5 both sides
In space between filter screen 3.
The outside of disk 6 is cased with sealing ring 4 16, sealing ring 4 16 can with in cap 8
Side leans.Sealing ring 4 16 increases sealing effectiveness when disk 6 contacts with cap 8.
There is on disk 6 step 17 of annular, as shown in Figure 6, inside cap 8, be provided with ring
The baffle ring 18 of shape, baffle ring 18 when backwash head 4 moves down with the leaning of step 17,
Clamp 10 is positioned at inside baffle ring 18, and water inlet 27 is positioned at outside baffle ring 18.Work as disk
6 when being in close contact with cap 8, and step 17 is also in close contact with baffle ring 18, prevents instead
During flushing, the sewage in filter flask 1 flows out from hole clipping 11.It is cased with close outside step 17
Seal 5 19, sealing ring 5 19 leans inside baffle ring 18.Sealing ring 5 19 increases
Add sealing effectiveness when step 17 contacts with baffle ring 18.
Water inlet 1 is identical with water inlet 27 quantity, and position is identical.Water inlet 1
With water inlet 27 one_to_one corresponding, water inlet 1 described in the present embodiment have four and
Circumference is uniform.As it is shown in fig. 7, be additionally provided with little filter screen 20 at water inlet 1.Little filter screen
20 are possible to prevent the impurity when backwash to enter in skeleton 2 from water inlet 1.
Operation principle: skeleton 2 is driven by the ball valve of filter flask 1 lower end, can relatively recoil
Hair washing 4 moves up and down.When filter is in normal filtration state, skeleton 2 moves down into one
After determining height, now, water inlet 1 is backwashed 4 closure, water inlet 27 quilt
The groove 12 of skeleton 2 blocks, and water can only enter and now disk 6 from water inlet 39
Do not contact, so water can enter in filter flask 1, then from drainage screen with cap 8
3 enter in skeleton 2, then flow out from skeleton 2 upper port, complete filtration operation.Cross
When filter screen 3 needs to clean, skeleton 2 moves, just makes water inlet 1 and water inlet 27
Right, and cap 8 is enclosed within that disk 6 is outer and seamless with disk 6 to be contacted, described water cannot be from
Water inlet 39 enters in filter flask 1, and water enters into from water inlet 1 and water inlet 27
In skeleton 2, then enter into filter flask 1 from drainage screen 3, in drainage screen 3 filter opening
Impurity returns in filter flask 1 together along with reverse flow, then arranges from filter flask 1 bottom blow-down mouth
Go out.Clamp 10 is always positioned in hole clipping 11, prevent backwash head 4 from rotating and cause into
The mouth of a river 1 does not lines up with water inlet 27.
Claims (8)
1. a back purge system for filter, filter includes filter flask and is arranged on filter flask
Interior skeleton cylindrically, skeleton periphery is provided with drainage screen, it is characterised in that this is anti-
Flusher includes being enclosed within the backwash that skeleton upper end makes skeleton can slide up and down along it
Head, the upper end of skeleton has several water inlets one at sustained height, skeleton also has
Outward extending disk, the upper end of backwash head has several water inlets at sustained height
Two, backwash head lower end has the cap of prominent annular, and cap is enclosed within outside disk and energy
Seamless with outside disk contacting, cap upper surface has some water inlets three, backwash head
Lower end is provided with the clamp of some strips, and disk has some hole clippings inserted for clamp,
When skeleton moves down, described water inlet one can be backwashed head closure, described water inlet two
Can be blocked by skeleton；When moving on skeleton, described water inlet one connects with water inlet two,
And cap is seamless with disk contacts, at described water inlet one, it is additionally provided with little filter screen.
The back purge system of a kind of filter the most according to claim 1, its feature
Being, skeleton upper end has the groove of annular, is provided with sealing ring one, groove on the upside of groove
Downside is provided with sealing ring two, backwash head moves rearward recess the most right with water inlet two.
The back purge system of a kind of filter the most according to claim 2, its feature
Be, described water inlet one is cased with annular sealing ring three, sealing ring two be positioned at into
The upside at the mouth of a river one.
The back purge system of a kind of filter the most according to claim 3, its feature
Being, water inlet one is identical with water inlet two quantity, and position is identical.
The back purge system of a kind of filter the most according to claim 4, its feature
Being, described water inlet one has four and circumference is uniform.
The back purge system of a kind of filter the most according to claim 5, its feature
Being, the outside of described disk is cased with sealing ring four, and sealing ring four can be with phase inside cap
Against.
The back purge system of a kind of filter the most according to claim 6, its feature
It is that there is on disk the step of annular, inside cap, is provided with the baffle ring of annular, gear
Ring when backwash head moves down with the leaning of step, clamp is positioned at inside baffle ring, water inlet
Mouth two is positioned at outside baffle ring.
The back purge system of a kind of filter the most according to claim 7, its feature
It is, is cased with sealing ring five outside step, leans inside sealing ring five and baffle ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620509189.1U CN205627264U (en) | 2016-05-30 | 2016-05-30 | Filter backwash device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620509189.1U CN205627264U (en) | 2016-05-30 | 2016-05-30 | Filter backwash device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205627264U true CN205627264U (en) | 2016-10-12 |
Family
ID=57051686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620509189.1U Withdrawn - After Issue CN205627264U (en) | 2016-05-30 | 2016-05-30 | Filter backwash device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205627264U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833588A (en) * | 2016-05-30 | 2016-08-10 | 海宁市倍世环保科技有限公司 | Backwashing device of filter |
| CN110433548A (en) * | 2019-07-18 | 2019-11-12 | 厦门润创远工贸有限公司 | One kind rotatably can back flush filter and its control method |
-
2016
- 2016-05-30 CN CN201620509189.1U patent/CN205627264U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105833588A (en) * | 2016-05-30 | 2016-08-10 | 海宁市倍世环保科技有限公司 | Backwashing device of filter |
| CN105833588B (en) * | 2016-05-30 | 2019-02-05 | 海宁市倍世环保科技有限公司 | A kind of back purge system of filter |
| CN110433548A (en) * | 2019-07-18 | 2019-11-12 | 厦门润创远工贸有限公司 | One kind rotatably can back flush filter and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161012 Effective date of abandoning: 20190205 |