CN202146667U - Backwash type pre-filter - Google Patents
Backwash type pre-filter Download PDFInfo
- Publication number
- CN202146667U CN202146667U CN201120074545U CN201120074545U CN202146667U CN 202146667 U CN202146667 U CN 202146667U CN 201120074545 U CN201120074545 U CN 201120074545U CN 201120074545 U CN201120074545 U CN 201120074545U CN 202146667 U CN202146667 U CN 202146667U
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- Prior art keywords
- filter
- blowdown
- filter cylinder
- valve body
- rotating shaft
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Abstract
The utility model relates to a backwash type pre-filter, which comprises a valve body. The valve body is provided with a water inlet and a water outlet. The two ends of the valve body are respectively connected to a shell and an adjustable handle. A drainage hole is arranged at the bottom of the shell. A filter cylinder is coaxially arranged in the shell. The filter cylinder is arranged in a sealed manner. The water inlet is connected with the interior part of the filter cylinder. The water outlet is connected with the interior part of the shell. A filter net is wrapped on the inner wall of the filter cylinder. A rotating shaft is coaxially arranged in the filter cylinder. The rotating shaft passes through the valve body and is connected with the adjustable handle. A drainage scraper is arranged on the rotating shaft. The drainage scraper is adjacent to the inner wall of the filter net. A drainage plug is fixedly connected to the bottom of the filter cylinder. The drainage plug is connected with the drainage hole. A sealing device is arranged between the drainage plug and the drainage hole. According to the backwash type pre-filter disclosed by the utility model, because the drainage scraper is arranged in the filter cylinder, stubborn dirt on the filter net can be eliminated; the pre-filter is convenient to use; the flow capacity is high; the water pressure is not influenced; and the pre-filter has popularization value.
Description
Technical field
The utility model relates to a kind of backpulsing fore filter.
Background technology
Along with living standard improves constantly, people are also increasingly high to the requirement of domestic water, so fore filter also naturally is widely used.It mainly acts on is granule foreigns such as the removal precipitated impurities that pipeline produced, bacterium, microorganism remains, iron rust, husky mud; Avoid human body and skin to come to harm; And downstream line, water purifier, water heater, washing machine, high-grade tap are played positive protective effect; Being the jinx of secondary pollution, is a kind of reliable device for filtering impurities.General fore filter can be divided into four kinds: Washdown type, and backpulsing, semi-automatic and full-automatic.
The backpulsing fore filter generally is installed in the front end of pipeline, and top is generally the T-shape structure for filtering valve body; Right ends is respectively equipped with water inlet and delivery port; The top is provided with blowdown controller connector, and the lower end is provided with the connecting portion that connects the housing and the tubular screen pack of inside, and housing is provided with sewage draining exit bottom; Water flows into and gets into tubular screen pack inner chamber from the water inlet that filters valve body during use; Rely on hydraulic pressure to pass through filter screen and arrive tubular screen pack outside, flowing out through delivery port, and when current pass through filter screen; Granule foreigns such as the precipitated impurities in the water, bacterium, microorganism remains, iron rust, husky mud then are filtered net and tackle, and discharge through housing sewage draining exit bottom.At present, backpulsing fore filter of the prior art is owing to the filtered version of advancing to go out in adopting, and the granule foreign that is filtered all is deposited on the tubular screen pack by interception, has influenced the use of filter.
The utility model content
The technical problem that the utility model will solve is: provide a kind of simple in structure, and manufacturing, easy to use, and also circulation is big, the impregnable backpulsing fore filter of hydraulic pressure.
In order to overcome the defective that exists in the background technology, the utility model solves the technical scheme that its technical problem adopted and is: a kind of backpulsing fore filter comprises valve body; Valve body has water inlet, delivery port, and said valve body two ends are connected with housing respectively and regulate handle, and said housing bottom is provided with the blowdown mouth; Be coaxially arranged with filter cylinder in the said housing, said filter cylinder sealing is provided with, and said water inlet is connected with cartridge interior; Said delivery port is connected with enclosure interior, and said filter cylinder inwall is coated with screen pack, is coaxially arranged with rotating shaft in the filter cylinder; Said rotating shaft is passed valve body and is connected with the adjusting handle, and rotating shaft is provided with the blowdown scraper plate, and said blowdown scraper plate and screen pack inwall are interdependent; Said filter cylinder bottom is fixedly connected with the blowdown plug, and said blowdown plug is connected with the blowdown mouth, is provided with sealing device between blowdown plug and the blowdown mouth.
According to another embodiment of the utility model, a kind of backpulsing fore filter comprises that further said valve body is provided with the housing connecting portion, and said housing is connected with valve body through the housing connecting portion.
According to another embodiment of the utility model, a kind of backpulsing fore filter further comprises between said blowdown plug and the blowdown mouth through being threaded.
According to another embodiment of the utility model, a kind of backpulsing fore filter comprises that further said filter cylinder bottom is provided with seal.
According to another embodiment of the utility model, a kind of backpulsing fore filter further comprises between said rotating shaft and the blowdown plug and is connected with jump ring.
According to another embodiment of the utility model, a kind of backpulsing fore filter comprises that further said rotating shaft is connected through connector with regulating between the handle.
The utlity model has following advantage: (1) the utility model has increased the design that the blowdown knob is set on the valve body in the prior art, has changed the structure of valve body, and is simple in structure, manufacturing, installation and easy to use; (2) the utility model adopts the circulation style of advancing to go out in the current, the impurity particle that filters is blocked in the screen pack inboard, blowdown, convenience for washing; (3) delivery port of the utility model and filter cylinder external communications make water flux density farthest guaranteed, do not receive the restriction of valve body structure, in use can not cause the reduction of hydraulic pressure, and it is ingenious reasonable to design; (4) design of blowdown scraper plate is arranged in the filter cylinder, effect is to remove stupid dirt, and is easy to use, has higher practicality.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation of the preferred embodiment of the utility model;
Wherein: 1, housing, 2, regulate handle, 3, rotating shaft, 4, valve body, 5, the blowdown scraper plate, 6, screen pack; 7, filter cylinder, 8, sealing device, 9, the housing connecting portion, 10, jump ring, 11, the blowdown plug; 12, blowdown mouth, 13, water inlet, 14, delivery port, 15, connector, 16, seal.
The specific embodiment
Combine accompanying drawing and preferred embodiment that the utility model is done further detailed explanation now.These accompanying drawings are the sketch map of simplification, the basic structure of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
A kind of backpulsing fore filter as shown in Figure 1 comprises valve body 4, and valve body 4 has water inlet 13, delivery port 14; Said valve body 4 two ends are connected with housing 1 respectively and regulate handle 2, also are provided with housing connecting portion 9 on the valve body 4, and said housing 1 is connected with valve body 4 through housing connecting portion 9; Said housing 1 bottom is provided with blowdown mouth 12, is coaxially arranged with filter cylinder 7 in the said housing 1, and said filter cylinder 7 sealings are provided with; Said water inlet 13 and 7 inner connections of filter cylinder, said delivery port 14 and 1 inner connection of housing, said filter cylinder 7 inwalls are coated with screen pack 6; Be coaxially arranged with rotating shaft 3 in the filter cylinder 7, said rotating shaft 3 is passed valve body 4 and is connected with adjusting handle 2 through connector 15, and rotating shaft 3 is provided with blowdown scraper plate 5; Said blowdown scraper plate 5 is interdependent with screen pack 6 inwalls; Said filter cylinder 7 bottoms are fixedly connected with blowdown plug 11, through being threaded, are provided with sealing device 8 between blowdown plug 11 and the blowdown mouth 12 between said blowdown plug 11 and the blowdown mouth 12.
For being threaded, rotation adjusting handle 2 can be opened blowdown mouth 12 simultaneously, and impurity is discharged between said blowdown plug 11 and the blowdown mouth 12.
Be connected with jump ring 10 between said rotating shaft 3 and the blowdown plug 11, when blowdown plug 11 and blowdown mouth 12 close-fittings, jump ring 10 is sounded, and reminds operating personnel's shut-down operation.
Said filter cylinder 7 tops and bottom are respectively arranged with seal 16, can prevent that the impurity in the filter cylinder 7 from getting into the water behind the contaminated filter in the housing 1.
Said rotating shaft 3 is connected through connector 15 with regulating between the handle 2, when rotation adjusting handle 2, can drive the rotation of rotating shaft 3, thereby the motion of drive blowdown scraper plate 5 can clean the impurity that sticks on the screen pack 6 get off.
The utility model operation principle is following: belong to " inner pressed " under the normal duty of backpulsing fore filter; Running water gets in the filter cylinder 7 from water inlet 13; Because filter cylinder 7 inwalls are coated with screen pack 6; Granular pattern such as silt, iron rust impurity is blocked in screen pack 6 inboards, and the pure water after the filtration gets into housing 1, discharges from delivery port 14 at last.Because for being threaded, rotation adjusting handle 2 can be opened blowdown plug 11 between blowdown plug 11 and the blowdown mouth 12, thereby will be blocked in the interior impurity of screen pack 6 from 12 discharges of blowdown mouth.Owing to can pile up impurity on the screen pack 6 in the use, and rotation adjusting handle 2 can drive 5 motions of blowdown scraper plate, the impurity of piling up on the screen pack 6 is cleaned, discharge by blowdown mouth 12 at last, prolonged the service life of screen pack 6.
With above-mentioned desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (6)
1. a backpulsing fore filter comprises valve body (4), and valve body (4) has water inlet (13), delivery port (14); Said valve body two ends are connected with housing (1) respectively and regulate handle (2), and said housing (1) bottom is provided with blowdown mouth (12), it is characterized in that: be coaxially arranged with filter cylinder (7) in the said housing (1); Said filter cylinder (7) is connected with valve seal, said water inlet (13) and the inner UNICOM of filter cylinder (7), said delivery port (14) and the inner UNICOM of housing (1); Said filter cylinder (7) inwall is provided with screen pack (6); Be coaxially arranged with rotating shaft (3) in the filter cylinder (7), said rotating shaft (3) is passed valve body (4) and is connected with adjusting handle (2), and rotating shaft (3) is provided with blowdown scraper plate (5); Said blowdown scraper plate (5) is interdependent with screen pack (6) inwall; Said filter cylinder (7) bottom is fixedly connected with blowdown plug (11), and said blowdown plug (11) is connected with blowdown mouth (12), is provided with sealing device (8) between blowdown plug (11) and the blowdown mouth (12).
2. a kind of backpulsing fore filter as claimed in claim 1 is characterized in that: said valve body (4) is provided with housing connecting portion (9), and said housing (1) is connected with valve body (4) through housing connecting portion (9).
3. a kind of backpulsing fore filter as claimed in claim 1 is characterized in that: between said blowdown plug (11) and the blowdown mouth (12) through being threaded.
4. a kind of backpulsing fore filter as claimed in claim 1 is characterized in that: said filter cylinder (7) bottom is provided with seal (16).
5. a kind of backpulsing fore filter as claimed in claim 1 is characterized in that: be connected with jump ring (10) between said rotating shaft (3) and the blowdown plug (11).
6. a kind of backpulsing fore filter as claimed in claim 1 is characterized in that: said rotating shaft (3) is connected through connector (15) with regulating between the handle (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120074545U CN202146667U (en) | 2011-03-21 | 2011-03-21 | Backwash type pre-filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120074545U CN202146667U (en) | 2011-03-21 | 2011-03-21 | Backwash type pre-filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202146667U true CN202146667U (en) | 2012-02-22 |
Family
ID=45587744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120074545U Expired - Fee Related CN202146667U (en) | 2011-03-21 | 2011-03-21 | Backwash type pre-filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202146667U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105381645A (en) * | 2015-12-14 | 2016-03-09 | 广州天禾自动化实业有限公司 | Trap-type self-cleaning filter and filtering method |
| CN105536336A (en) * | 2015-12-17 | 2016-05-04 | 杭州础能环境科技有限公司 | Prefilter for electric control pollution discharge |
| CN106039820A (en) * | 2016-06-23 | 2016-10-26 | 南通航海机械集团有限公司 | Centrifugal seawater filter in front of backwashing pump |
| CN106110727A (en) * | 2016-08-23 | 2016-11-16 | 江苏嘉恒环境科技有限公司 | A kind of back flushing type front defecator and water purifier |
| CN113509773A (en) * | 2020-04-10 | 2021-10-19 | 李渊 | Pre-filter and pre-filter with water leakage protection function |
-
2011
- 2011-03-21 CN CN201120074545U patent/CN202146667U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105381645A (en) * | 2015-12-14 | 2016-03-09 | 广州天禾自动化实业有限公司 | Trap-type self-cleaning filter and filtering method |
| CN105536336A (en) * | 2015-12-17 | 2016-05-04 | 杭州础能环境科技有限公司 | Prefilter for electric control pollution discharge |
| CN106039820A (en) * | 2016-06-23 | 2016-10-26 | 南通航海机械集团有限公司 | Centrifugal seawater filter in front of backwashing pump |
| CN106039820B (en) * | 2016-06-23 | 2018-06-19 | 南通航海机械集团有限公司 | Sea water filter before a kind of centrifugal backwashing pump |
| CN106110727A (en) * | 2016-08-23 | 2016-11-16 | 江苏嘉恒环境科技有限公司 | A kind of back flushing type front defecator and water purifier |
| CN113509773A (en) * | 2020-04-10 | 2021-10-19 | 李渊 | Pre-filter and pre-filter with water leakage protection function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120222 Termination date: 20170321 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |