CN211635436U - But leading filter of back flush - Google Patents
But leading filter of back flush Download PDFInfo
- Publication number
- CN211635436U CN211635436U CN201922410611.4U CN201922410611U CN211635436U CN 211635436 U CN211635436 U CN 211635436U CN 201922410611 U CN201922410611 U CN 201922410611U CN 211635436 U CN211635436 U CN 211635436U
- Authority
- CN
- China
- Prior art keywords
- filter
- matched
- flow guide
- water inlet
- filtering
- 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.)
- Expired - Fee Related
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 83
- 238000001914 filtration Methods 0.000 claims abstract description 42
- 238000011045 prefiltration Methods 0.000 claims abstract description 25
- 239000010865 sewage Substances 0.000 claims abstract description 22
- 238000011001 backwashing Methods 0.000 claims abstract description 6
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 4
- 238000011010 flushing procedure Methods 0.000 abstract description 2
- 238000004140 cleaning Methods 0.000 description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000002455 scale inhibitor Substances 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 241000243686 Eisenia fetida Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Landscapes
- Filtration Of Liquid (AREA)
Abstract
The utility model relates to a filter, in particular to a pre-filter capable of back flushing, which comprises a filter shell, wherein a main body insert is arranged in the shell, the two sides of the main body insert are matched with the shell to be provided with a water inlet port and a water outlet port, the bottom of the main body insert is provided with a filtering mechanism, the filtering mechanism comprises a filtering bottle and a filter element arranged in the filtering bottle, and the top of the filtering bottle is provided with a first water inlet matched with a first channel; the top of the main body insert is provided with a positioning hole, the top of the shell is provided with an adjusting knob matched with the positioning hole, the adjusting knob is downwards provided with an adjusting component, the adjusting component is provided with a second water inlet, the adjusting knob is rotated to drive the flow guide piece and the rotating main shaft to move downwards, municipal water flows in through the second water inlet on the flow guide piece to drive the high-speed shaft on the outer side of the rotating main shaft to rotate at a high speed, the water flow direction is changed, the filter element is backwashed, impurities on the filter screen can be discharged through the sewage port, and the backwashing effect is achieved.
Description
Technical Field
The utility model relates to a filter, in particular to a pre-filter capable of backwashing.
Background
The pre-filter is the first coarse filter for water used in the whole house, and can filter large particles such as silt, rust, ova, red worms and the like in tap water. The pre-filter is usually installed behind the water meter of the water inlet pipe to ensure that a large amount of precipitated impurities generated in the pipe network cannot cause harm to human bodies, and plays an active protection role in hidden laying of pipes, taps, electric appliances and the like. The pre-filter is a secondary pollution killer, and is a reliable impurity filtering device, and the household pre-filter is a primary coarse filtering device for full-house water and can filter silt, rust and large granular substances in tap water.
The precision range of the filter screen of the pre-filter is different from 5 to 300 micrometers according to different brands and models, and the pre-filter is mainly used for removing precipitated impurities and large-particle impurities such as bacteria, microorganism debris, iron rust, sand mud and the like generated by a pipeline, so that the human body and skin are prevented from being injured; the scale inhibitor has positive protection effect on downstream pipelines, water purifiers, water heaters, washing machines, high-grade faucets and shower heads, and the scale inhibitor can also be added into the pre-filter to play a scale inhibiting effect on solar energy and water boilers.
However, the conventional pre-filter does not have a back-washing function, and impurities attached to the filter screen after filtration need to be removed after the machine is disassembled, so that the use of a user is inconvenient.
SUMMERY OF THE UTILITY MODEL
The technical problem solved by the utility model is that, among the prior art, common filter does not have the back flush function, and the impurity after the filtration need dismantle the problem of detaching behind the machine.
The utility model relates to a pre-filter capable of backwashing, which comprises a filter shell, a main body insert is arranged in the shell, the two sides of the main body insert are matched with the shell to form a water inlet port and a water outlet port, the bottom of the main body insert is provided with a filtering mechanism, the filtering mechanism comprises a filtering bottle and a filter element arranged in the filtering bottle, the filtering bottle is communicated with the water inlet port and the water outlet port, a first channel is arranged between the inner side wall of the filtering bottle and the filter element, the top of the filtering bottle is provided with a first water inlet matched with the first channel, and a second channel is arranged in the filter element; the top of the main body insert is provided with a positioning hole, the top of the shell is provided with an adjusting knob matched with the positioning hole, the adjusting knob is downwards provided with an adjusting component, the adjusting component is matched with the first water inlet, the adjusting component is provided with a second water inlet, and the second water inlet is matched with the second channel; the bottom of the filter flask is matched with the lower end of the shell and is provided with a sewage port.
Preferably, the inner side surface of the main body insert is provided with a plurality of fixing blocks, the adjusting assembly is provided with fixing grooves matched with the fixing blocks, and the length of any fixing block is smaller than that of the fixing groove.
Preferably, the adjusting assembly is sequentially provided with a first flow guide part, a rotating main shaft and a second flow guide part from top to bottom, a fixing groove matched with a plurality of fixing blocks is formed in the outer side surface of the upper portion of the first flow guide part, a second water inlet is formed in the lower side wall of the first flow guide part, a water blocking disc is arranged at the bottom end of the first flow guide part and matched with the first water inlet, and the top of the first flow guide part is matched with the adjusting knob; the rotating main shaft extends into the filter bottle, and the second flow guide piece is matched with the sewage port.
Preferably, a rotary connecting piece is arranged at the top of the first flow guide piece and is in threaded connection with an adjusting knob.
Preferably, a high-speed shaft is sleeved outside the rotating main shaft.
Preferably, the bottom of the second flow guide piece is provided with a valve plate, and the valve plate is matched with the sewage port.
Preferably, the length of the rotating main shaft and the second flow guide is equal to that of the filter flask.
Preferably, the top of the filter bottle matched with the water outlet port is provided with a sealing structure.
Preferably, the filter element comprises a filter screen bracket and a filter screen coated outside the filter screen bracket.
Preferably, the filtering precision of the filter screen is 40 um.
Compared with the prior art, the utility model, following beneficial effect has: (1) municipal water can enter the filtering mechanism through the water inlet port, and flows out of the water outlet port after being filtered, so that domestic water is guaranteed;
(2) the adjusting knob is rotated to drive the flow guide piece and the rotating main shaft to rotate and move downwards, municipal water flows in through the second water inlet on the flow guide piece to drive the high-speed shaft on the outer side of the rotating main shaft to rotate at a high speed, the water flow direction is changed, the valve plate is opened to back flush the filter element, and impurities on the filter screen can be discharged through the sewage port, so that the back flush effect is achieved.
Drawings
Fig. 1 is an exploded view of a pre-filter according to the present invention;
fig. 2 is a schematic structural view of the filter flask of the present invention;
fig. 3 is a schematic structural diagram of an adjusting assembly according to the present invention;
fig. 4 is a schematic structural view of the main body insert of the present invention;
fig. 5 is a cross-sectional view showing a filtering state of the pre-filter according to the present invention (arrows indicate a water flow direction);
fig. 6 is a sectional view showing a cleaning state of the pre-filter according to the present invention (arrows in the figure indicate the direction of water flow).
Detailed Description
The present invention will be described in further detail with reference to the following examples, but the scope of the present invention is not limited thereto.
As shown in fig. 1 to 4, the utility model relates to a pre-filter capable of back flushing, which comprises a filter shell 1, a main body insert 5 is arranged inside the shell 1, the two sides of the main body insert 5 are matched with the shell 1 to be provided with a water inlet port 2 and a water outlet port 3, the bottom of the main body insert 5 is provided with a filtering mechanism 7, the filtering mechanism 7 comprises a filtering bottle 8 and a filter element 11 arranged inside the filtering bottle 8, the filtering bottle 8 is spatially communicated with the water inlet port 2 and the water outlet port 3, a first channel 9 is arranged between the inner side wall of the filtering bottle 8 and the filter element 11, the top of the filtering bottle 8 is provided with a first water inlet 10 matched with the first channel 9, and a second channel 12 is arranged inside the filter element 11; the top of the main body insert 5 is provided with a positioning hole 6, the top of the shell 1 is provided with an adjusting knob 14 matched with the positioning hole 6, the adjusting knob 14 faces downwards and is provided with an adjusting component 15, the adjusting component 15 is matched with the first water inlet 10, the adjusting component 15 is provided with a second water inlet 17, and the second water inlet 17 is matched with the second channel 12; the bottom of the filter flask 8 is matched with the lower end of the shell 1 and is provided with a sewage port 4.
As shown in fig. 4, a plurality of fixing blocks 25 are disposed on an inner side surface of the main body insert 5, fixing grooves 26 are disposed on the adjusting assembly 15 and are matched with the plurality of fixing blocks 25, and a length of any one of the fixing blocks 25 is smaller than a length of the fixing groove 26.
The utility model discloses in, the quantity of fixed slot 26 and fixed block 25 is unlimited, can be set up by oneself according to actual demand by the technical personnel in the field.
The utility model discloses in, fixed slot 26 and fixed block 25 cooperation setting for required fulcrum when clamping adjusting part 15, namely being used for rotatory adjust knob 14.
The utility model discloses in, arbitrary the length of fixed block 25 is less than the length of fixed slot 26, can guarantee that adjusting part 15 is moving the in-process down, and fixed block 25 all is at the inslot of fixed slot 26, can not lose the fulcrum during rotatory adjust knob 14.
As shown in fig. 3, the adjusting assembly 15 is sequentially provided with a first flow guide member 16, a rotating main shaft 20 and a second flow guide member 22 from top to bottom, the outer side surface of the upper portion of the first flow guide member 16 is provided with a fixing groove 26 matched with a plurality of fixing blocks 25, the lower side wall of the first flow guide member 16 is provided with a second water inlet 17, the bottom end of the first flow guide member 16 is provided with a water blocking disc 18, the water blocking disc 18 is matched with the first water inlet 10, and the top of the first flow guide member 16 is matched with the adjusting knob 14; the rotating main shaft 20 extends into the filter flask 8, and the second diversion element 22 is matched with the sewage port 4.
The top of the first flow guide piece 16 is provided with a rotary connecting piece 19, and the rotary connecting piece 19 is in threaded connection with the adjusting knob 14.
The outer side of the rotating main shaft 20 is sleeved with a high-speed shaft 21.
The bottom of the second flow guide part 22 is provided with a valve plate 23, and the valve plate 23 is matched with the sewage port 4.
The utility model discloses in, second water conservancy diversion spare 22 is cross columnar structure, the valve plate 23 size of second water conservancy diversion spare 22 is the same with 4 sizes of sewage mouth.
The length of the rotary main shaft 20 and the second diversion element 22 is equal to that of the filter flask 8.
And a sealing structure 24 is arranged at the top of the filter bottle 8 matched with the water outlet port 3.
As shown in fig. 5-6, the working principle of the present invention is: during normal filtration, a user rotates the rotary knob to a filtration command, the main shaft 20 and the second flow guide part 22 are rotated to normal positions, municipal water enters from the water inlet port 2 and enters the first channel 9 through the first water inlet 10 at the top of the filter bottle 8, the municipal water is filtered by the filter element 11 and then flows out to the water outlet port 3 through the second channel 12, and filtration is completed; when cleaning, a user rotates the rotary knob to a 'cleaning' command, the rotary main shaft 20 and the second flow guide part 22 move downwards, the valve plate 23 at the bottom of the second flow guide part 22 is opened, the water blocking disc 18 blocks the first water inlet 10 at the top of the filter bottle 8, municipal water enters from the water inlet port 2 and flows into the second channel 12 through the second water inlet 17 on the first flow guide part 16 to drive the high-speed shaft 21 to rotate at a high speed, the water flow strengthens impact force and washes away impurities attached to the filter screen, and sewage with the impurities is discharged from the sewage port 4 to achieve the effect of backwashing.
The utility model discloses in, inlet port 2 and 3 sizes of outlet port are DN25 or DN20 generally, and DN25 can set up on the pipeline of registering one's residence, and DN20 can set up on the kitchen pipeline.
The utility model discloses in, adjust knob 14 cup joints with swivel connected coupler 19, can control adjusting part 15 through rotary adjusting knob 14 and reciprocate.
The utility model discloses in, the cover is equipped with high-speed shaft 21 outside the main rotary shaft 20, high-speed shaft 21 can carry out high-speed rotation when carrying out the back flush, will adhere to the impurity in the filter screen outside and wash away, has avoided the scraper to strike off or the manual cleaning, and is more convenient trouble-saving.
The utility model discloses in, the drain valve is connected to rotatory main shaft 20, and accessible rotation regulation knob 14 drives rotatory main shaft 20 and second water conservancy diversion piece 22 and reciprocates, and when moving down, the valve plate 23 of second water conservancy diversion piece 22 bottom stretches out from sewage mouth 4, and sewage can be discharged by sewage mouth 4.
The utility model discloses in, airtight structure 24 generally is a water outlet plug, water outlet plug limits rivers to can only follow second water inlet 17 and flow out, can prevent that unfiltered municipal water from directly flowing out from water outlet port 3.
In the utility model, when the filter is in a filtering state, namely the adjusting component 15 is in a normal position, the valve plate 23 at the bottom of the second diversion part 22 is positioned at the sewage port 4, so that water is prevented from flowing out of the sewage port 4; in the cleaning state, the adjusting assembly 15 is in the downward moving position, and the valve plate 23 at the bottom of the second flow guide 22 extends out of the sewage port 4, so that the sewage is discharged from the sewage port 4.
The filter element 11 comprises a filter screen bracket 13 and a filter screen coated on the outer side of the filter screen bracket 13.
The filter fineness of filter screen is 40 um.
In the utility model, the filtering precision of the filter screen is generally set to 40um, and the filtering precision can effectively block various impurities and is not easy to block after testing; the filtering precision of the specific filter screen can be set by the person skilled in the art according to the impurity size of the water.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A pre-filter capable of backwashing comprises a filter shell and is characterized in that: a main body insert is arranged in the shell, a water inlet port and a water outlet port are formed in the two sides of the main body insert and matched with the shell, a filtering mechanism is arranged at the bottom of the main body insert and comprises a filtering bottle and a filtering core arranged in the filtering bottle, the filtering bottle is communicated with the water inlet port and the water outlet port in space, a first channel is arranged between the inner side wall of the filtering bottle and the filtering core, a first water inlet matched with the first channel is formed in the top of the filtering bottle, and a second channel is formed in the filtering core; the top of the main body insert is provided with a positioning hole, the top of the shell is provided with an adjusting knob matched with the positioning hole, the adjusting knob is downwards provided with an adjusting component, the adjusting component is matched with the first water inlet, the adjusting component is provided with a second water inlet, and the second water inlet is matched with the second channel; the bottom of the filter flask is matched with the lower end of the shell and is provided with a sewage port.
2. A backflushable pre-filter according to claim 1, wherein: the inner side surface of the main body insert is provided with a plurality of fixing blocks, the adjusting assembly is provided with fixing grooves matched with the fixing blocks, and the length of any fixing block is smaller than that of the fixing groove.
3. A backflushable pre-filter according to claim 2, wherein: the adjusting assembly is sequentially provided with a first flow guide part, a rotating main shaft and a second flow guide part from top to bottom, the outer side surface of the upper part of the first flow guide part is provided with a fixing groove matched with a plurality of fixing blocks, the lower side wall of the first flow guide part is provided with a second water inlet, the bottom end of the first flow guide part is provided with a water blocking disc, the water blocking disc is matched with the first water inlet, and the top of the first flow guide part is matched with an adjusting knob; the rotating main shaft extends into the filter bottle, and the second flow guide piece is matched with the sewage port.
4. A backflushable pre-filter according to claim 3, wherein: the top of the first flow guide part is provided with a rotary connecting part, and the rotary connecting part is in threaded connection with the adjusting knob.
5. A backflushable pre-filter according to claim 3, wherein: and a high-speed shaft is sleeved on the outer side of the rotating main shaft.
6. A backflushable pre-filter according to claim 3, wherein: and a valve plate is arranged at the bottom of the second flow guide piece and is matched with the sewage port.
7. A backflushable pre-filter according to claim 3, wherein: the length of the rotary main shaft and the length of the second flow guide piece are equal to the length of the filter bottle.
8. A backflushable pre-filter according to claim 1, wherein: and a sealing structure is arranged at the top of the filter bottle matched with the water outlet port.
9. A backflushable pre-filter according to claim 1, wherein: the filter element comprises a filter screen support and a filter screen coated on the outer side of the filter screen support.
10. A backflushable pre-filter according to claim 9, wherein: the filter fineness of filter screen is 40 um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922410611.4U CN211635436U (en) | 2019-12-28 | 2019-12-28 | But leading filter of back flush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922410611.4U CN211635436U (en) | 2019-12-28 | 2019-12-28 | But leading filter of back flush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211635436U true CN211635436U (en) | 2020-10-09 |
Family
ID=72700231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922410611.4U Expired - Fee Related CN211635436U (en) | 2019-12-28 | 2019-12-28 | But leading filter of back flush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211635436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112642197A (en) * | 2020-12-30 | 2021-04-13 | 优斯曼(江苏)智能科技有限公司 | Back-flushing rotary spray washing device for pre-filter |
-
2019
- 2019-12-28 CN CN201922410611.4U patent/CN211635436U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112642197A (en) * | 2020-12-30 | 2021-04-13 | 优斯曼(江苏)智能科技有限公司 | Back-flushing rotary spray washing device for pre-filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201009 Termination date: 20211228 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |