CN207203594U - Fore filter - Google Patents
Fore filter Download PDFInfo
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- CN207203594U CN207203594U CN201720937617.5U CN201720937617U CN207203594U CN 207203594 U CN207203594 U CN 207203594U CN 201720937617 U CN201720937617 U CN 201720937617U CN 207203594 U CN207203594 U CN 207203594U
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- filtration barrel
- barrel body
- outer cylinder
- fore filter
- cylinder body
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Abstract
The utility model discloses a kind of fore filter, including in hollow outer cylinder body, outer cylinder body upper end is connected with the end cap with water inlet and delivery port, outer cylinder body lower end connects blowdown component, in outer cylinder body be provided be cylindrical in shape and with the body concentric filtration barrel body of outer barrel, and the raw water chamber that filtration barrel body outer circumferential and the circumferential inner side formation of outer cylinder body are connected in a ring and with water inlet, the water-purifying cavity that filtration barrel body lower end closed and the circumferential inner side formation of described filtration barrel body are connected with delivery port, there is the drainage cylinder connected with delivery port in end cap, there is the sealing contacted with drainage cylinder lower end in filtration barrel body upper end, elastic top laminated structure is provided between filtration barrel body lower end and outer cylinder body.The utility model has the advantages that simple in construction, good seal performance.
Description
Technical field
The utility model belongs to art of filters, more particularly to a kind of fore filter.
Background technology
With the progress improvement of people's living standards of science and technology, people starts to having in daily life with water and healthy diet
Higher requirement.A kind of existing frequently-used fore filter to water inlet carry out primary purification, fore filter, be typically mounted on into
After waterpipe water meter, to ensure that caused a large amount of precipitated impurities will not damage to human body in pipe network, and to concealed pipe,
Tap, electrical equipment etc. play positive protective effect.Fore filter is the jinx of secondary pollution, is a kind of reliable impurity mistake
Device is filtered, but fore filter has higher requirement to the closing measure between screen pack and skeleton, it is desirable to screen pack and bone
Frame support must be brought into close contact, and otherwise, if gap between skeleton and screen pack be present, there is water from gap by being directly entered
In skeleton, hidden danger that filtered net filtration flows directly out.
In order to solve the above-mentioned technical problem, people have carried out long-term exploration, such as Chinese patent discloses a kind of filter core
[application number：CN201420800089.5], it is used to be arranged in the fore filter on water inlet pipe, and filter core includes the filter of tubular
Network framework and filtering net cylinder, the filtering net cylinder are set in the periphery of the filter screen skeleton；Outside the both ends of the filtering net cylinder
It is provided with the sealing ring that the inwall of its end is bonded to one with the periphery of the filter screen skeleton week.
Although such scheme improves filter core, improve sealing effectiveness, but it strengthens sealing only with sealing ring
Effect, and sealing effectiveness is still not ideal enough, does not solve sealing problem fundamentally, sealing property need to be carried
It is high.
Utility model content
The purpose of this utility model is in view of the above-mentioned problems, providing a kind of fore filter simple in construction.
To reach above-mentioned purpose, the utility model employs following technical proposal：
A kind of fore filter, including in hollow outer cylinder body, described outer cylinder body upper end be connected with water inlet and
The end cap of delivery port, described outer cylinder body lower end connection blowdown component, is provided with outer cylinder body and is cylindrical in shape and concentric with outer cylinder body
Filtration barrel body, and the circumferential inner side of described filtration barrel body outer circumferential and outer cylinder body forms in a ring and is connected with water inlet
Raw water chamber, the circumferential inner side of described filtration barrel body lower end closed and described filtration barrel body formed be connected with delivery port it is net
Water cavity, described end cap is interior to have the drainage cylinder connected with delivery port, has in filtration barrel body upper end and drains cylinder lower end
The sealing of contact, elastic top laminated structure is provided between described filtration barrel body lower end and outer cylinder body.
Pass through above-mentioned technical proposal, elastic top laminated structure can make filtration barrel body to one upward pressure on top surface of filtration barrel body
The sealing of upper end is tightly resisted against drainage cylinder so that sealing effectiveness reaches highest.
In above-mentioned fore filter, described elastic top laminated structure includes being arranged between filtration barrel body and outer cylinder body
Top pressure spring, and described top pressure spring one end is resisted against filtration barrel body lower surface, and the other end, which acts on, is arranged on outer cylinder body
On top pressure round platform inside lower end.
In above-mentioned fore filter, described outer cylinder body lower end has the contraction flow region that diameter tapers into, and described
Top pressure round platform be formed at contraction flow region lower end inside.
In above-mentioned fore filter, described sealing includes being arranged on filtration barrel body upper end and is plugged in drainage cylinder
The cylindrical extension of the circumferential inner side of body, and described cylindrical extension be connected inside filtration barrel body, the extension of described tubular
Subordinate end outer circumferential has the annular seal for being formed at filtration barrel body upper end, and described annular seal and drainage cylinder
Lower end surface leans.
In above-mentioned fore filter, described cylindrical extension outer circumferential has and drained the circumferential inner side phase of cylinder
The annular contact surface of contact, there is and drain the annular sealing surface that cylinder lower end surface leans in described annular seal,
And form ring-shaped step between described annular contact surface and annular sealing surface.
In above-mentioned fore filter, described filtration barrel body includes the first cartridge filter for being cylindrical in shape and being coaxially socketed
Body and the second filtration barrel body, and the first described filtration barrel body is located at the second filtration barrel body outer circumferential, in the first filtration barrel body
Lower end is arranged with the bottom that can close the first filtration barrel body and the second filtration barrel body, and ring is arranged with the first filtration barrel body upper end
Shape lid, and described cylindrical extension and the equal integral type of annular seal are formed on annular lid.
In above-mentioned fore filter, described filtration barrel body includes tubular support body, and described tubular support body is circumferential
With some through holes, described tubular support body is circumferentially arranged with tubular screen pack, described tubular support body lower end closed, and described
Cylindrical extension and the equal integral type of annular seal be formed at tubular support body upper end.
In above-mentioned fore filter, also there is described end cap sidewall the side being communicated in inside filtration barrel body to connect
Mouthful.
In above-mentioned fore filter, described outer cylinder body and end cap are made by brass material, and outer cylinder body with
It is connected between end cap by screw thread.
In above-mentioned fore filter, the draining that described blowdown component includes being integrally formed at outer cylinder body lower end connects
Mouthful, and the ball valve with handle is provided with the drainage interface.
The utility model fore filter has advantages below compared to prior art：Outer barrel is acted on using top pressure spring
Between body and filtration barrel body, the sealing of filtration barrel body is set closely to fit in drainage cylinder so as to strengthen sealing effectiveness,
With simple in construction, the advantages that good sealing effect.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment one；
Fig. 2 is the structural representation of the end cap of the utility model embodiment one；
Fig. 3 is the explosive view of the filtration barrel body of the utility model embodiment one；
Fig. 4 is the structural representation of the sealing of the utility model embodiment one；
Fig. 5 is the explosive view of the filtration barrel body of the utility model embodiment two；
Fig. 6 is the structural representation of the sealing of the utility model embodiment two.
Reference：End cap 1；Water inlet 11；Delivery port 12；Side face port 13；Outer cylinder body 2；Top pressure round platform 21；Contraction flow region
22；Blowdown component 3；Drainage interface 31；Ball valve 32；Filtration barrel body 4；First filtration barrel body 41；Second filtration barrel body 42；Bottom
43；Annular lid 44；Tubular support body 45；Through hole 46；Screen pack 47；Drain cylinder 5；Sealing 6；Cylindrical extension 61；Annular
Sealing 62；Annular contact surface 63；Annular sealing surface 64；Elastic top laminated structure 7；Top pressure spring 71.
Embodiment
It is preferred embodiment of the present utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
Embodiment one
As shown in Figure 1 and Figure 4, present embodiment discloses a kind of fore filter, including in hollow outer cylinder body 2, outer barrel
The upper end of body 2 is connected with the end cap 1 with water inlet 11 and delivery port 12, the lower end of outer cylinder body 2 connection blowdown component 3, blowdown component 3
Drainage interface 31 including being integrally formed at the lower end of outer cylinder body 2, and the ball valve 32 with handle is provided with the drainage interface 31,
It is provided with the outer cylinder body 2 and is cylindrical in shape and the filtration barrel body 4 concentric with outer cylinder body 2, the side of end cap 1, which has, is communicated in filtration barrel body 4
Internal side face port 13, the outer circumferential of filtration barrel body 4 and the circumferential inner side of outer cylinder body 2 form in a ring and are connected with water inlet 11
Logical raw water chamber, the lower end closed of filtration barrel body 4 and the circumferential inner side of filtration barrel body 4 form the water-purifying cavity being connected with delivery port 12,
There is the drainage cylinder 5 connected with delivery port 12 in end cap 1, have in the upper end of filtration barrel body 4 and drainage 5 times end in contact of cylinder
Sealing 6, elastic top laminated structure 7 is provided between the lower end of filtration barrel body 4 and outer cylinder body 2, wherein, elastic top laminated structure 7 includes setting
The top pressure spring 71 between filtration barrel body 4 and outer cylinder body 2 is put, and the one end of top pressure spring 71 is resisted against the lower surface of filtration barrel body 4,
The other end is acted on the top pressure round platform 21 being arranged on inside the lower end of outer cylinder body 2.
Further, the lower end of outer cylinder body 2 has the contraction flow region 22 that diameter tapers into, and top pressure round platform 21 is formed at contraction
The lower end inside of portion 22.
Further, sealing 6 includes the cylinder for being arranged on the upper end of filtration barrel body 4 and being plugged in 5 circumferential inner side of drainage cylinder
Shape extension, and cylindrical extension be connected inside filtration barrel body 4, cylindrical extension lower end outer circumferential have was formed at
The annular seal 62 of the upper end of filter cylinder body 4, and annular seal 62 and the drainage lower end surface of cylinder 5 lean, cylindrical extension
Outer circumferential has and drained the annular contact surface 63 that the circumferential inner side of cylinder 5 is in contact, and has and drains in annular seal 62
The annular sealing surface 64 that the lower end surface of cylinder 5 leans, and form annular table between annular contact surface 63 and annular sealing surface 64
Rank.
Preferably, filtration barrel body 4 includes the first filtration barrel body 41 and the second mistake for being cylindrical in shape and being coaxially socketed
Filter cylinder body 42, and the first filtration barrel body 41 is located at the outer circumferential of the second filtration barrel body 42, is arranged in the lower end of the first filtration barrel body 41
There is the bottom 42 that the first filtration barrel body 41 and the second filtration barrel body 42 can be closed, ring is arranged with the upper end of the first filtration barrel body 41
Shape lid 44, and cylindrical extension and 62 equal integral type of annular seal are formed on annular lid 44, the first filtering here
By wire netting, circumferentially winding forms the filtration barrel body 42 of cylinder 41 and second.
Here outer cylinder body 2 and end cap 1 is made by brass material, and passes through screw thread phase between outer cylinder body 2 and end cap 1
Connection, moreover, reducing sealing 6 and drainage cylinder while a sealing ring can be set to ensure sealing effectiveness on sealing surface here
Friction between body 5.
When coming into operation, 4 upward top pressure of filtration barrel body is made the sealing 6 of the upper end of filtration barrel body 4 tight by top pressure spring 71
It is closely connected together in drainage cylinder 5 lower end so that in water-purifying cavity filtered cylinder 4 filter later water can enter drainage cylinder 5
Flowed out from delivery port 12, and the water that the filtered cylinder 4 of raw water chamber filters cannot be introduced into water-purifying cavity so as to reach expected close
Effect is sealed, there is the advantages that simple in construction, easy to use and good sealing effect.
Embodiment two
As shown in Figure 5 and Figure 6, the present embodiment is similar with embodiment one, and difference is, the filtration barrel body of the present embodiment
4 include tubular support body 45, and tubular support body 45 circumferentially has some through holes 46, and tubular support body 45 is circumferential to be arranged with tubular screen pack
47, the lower end closed of tubular support body 45, and cylindrical extension and 62 equal integral type of annular seal are formed at the upper end of tubular support body 45.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although end cap 1 has more been used herein；Water inlet 11；Delivery port 12；Side face port 13；Outer cylinder body 2；Top pressure is justified
Platform 21；Contraction flow region 22；Blowdown component 3；Drainage interface 31；Ball valve 32；Filtration barrel body 4；First filtration barrel body 41；Second cartridge filter
Body 42；Bottom 43；Annular lid 44；Tubular support body 45；Through hole 46；Screen pack 47；Drain cylinder 5；Sealing 6；Tubular extends
Portion 61；Annular seal 62；Annular contact surface 63；Annular sealing surface 64；Elastic top laminated structure 7；The grade term of top pressure spring 71, but
It is not precluded from the possibility using other terms.It is new just for the sake of more easily describing and explaining this practicality using these terms
The essence of type；Any additional limitation is construed as all to disagree with the utility model spirit.
Claims (10)
1. a kind of fore filter, including in hollow outer cylinder body (2), described outer cylinder body (2) upper end is connected with water inlet
The end cap (1) of mouth (11) and delivery port (12), described outer cylinder body (2) lower end connection blowdown component (3), in outer cylinder body (2)
Provided be cylindrical in shape and with the body concentric filtration barrel body of outer barrel (4), and described filtration barrel body (4) outer circumferential and outer cylinder body (2)
The raw water chamber that circumferential inner side formation is connected in a ring and with water inlet (11), described filtration barrel body (4) lower end closed and institute
The circumferential inner side of filtration barrel body (4) stated forms the water-purifying cavity being connected with delivery port (12), it is characterised in that described end cap
(1) there is the drainage cylinder (5) connected with delivery port (12) in, have in filtration barrel body (4) upper end with draining cylinder (5) lower end
The sealing (6) of contact, elastic top laminated structure (7) is provided between described filtration barrel body (4) lower end and outer cylinder body (2).
2. fore filter according to claim 1, it is characterised in that described elastic top laminated structure (7) includes setting
Top pressure spring (71) between filtration barrel body (4) and outer cylinder body (2), and described top pressure spring (71) one end is resisted against filtering
Cylinder (4) lower surface, the other end are acted on the top pressure round platform (21) being arranged on inside outer cylinder body (2) lower end.
3. fore filter according to claim 2, it is characterised in that described outer cylinder body (2) lower end have diameter by
The small contraction flow region of gradual change (22), and described top pressure round platform (21) is formed at contraction flow region (22) lower end inside.
4. according to the fore filter described in claim 1 or 2 or 3, it is characterised in that described sealing (6) includes setting
In filtration barrel body (4) upper end and the cylindrical extension (61) of the circumferential inner side of drainage cylinder (5) is plugged in, and described tubular extends
Portion (61) is connected with filtration barrel body (4) inside, and described cylindrical extension (61) lower end outer circumferential, which has, is formed at filtering
The annular seal (62) of cylinder (4) upper end, and described annular seal (62) and drainage cylinder (5) lower end surface offset
Lean on.
5. fore filter according to claim 4, it is characterised in that described cylindrical extension (61) outer circumferential tool
There is and drain the annular contact surface (63) that the circumferential inner side of cylinder (5) is in contact, have and draw in described annular seal (62)
The annular sealing surface (64) that flow cartridge body (5) lower end surface leans, and described annular contact surface (63) and annular sealing surface
(64) ring-shaped step is formed between.
6. fore filter according to claim 4, it is characterised in that described filtration barrel body (4) includes being cylindrical in shape
And the first filtration barrel body (41) and the second filtration barrel body (42) being coaxially socketed, and described the first filtration barrel body (41) is positioned at the
Two filtration barrel bodies (42) outer circumferential, being arranged with the first filtration barrel body (41) lower end can be by the first filtration barrel body (41) and second
The bottom (43) of filtration barrel body (42) closing, annular lid (44) is arranged with the first filtration barrel body (41) upper end, and described
Cylindrical extension (61) and annular seal (62) integral type are formed on annular lid (44).
7. fore filter according to claim 4, it is characterised in that described filtration barrel body (4) includes tubular support body
(45), and described tubular support body (45) circumferentially has some through holes (46), and described tubular support body (45) is circumferentially arranged with cylinder
Shape screen pack (47), described tubular support body (45) lower end closed, and described cylindrical extension (61) and annular seal
(62) integral type is formed at tubular support body (45) upper end.
8. fore filter according to claim 1, it is characterised in that described end cap (1) side, which also has, to be communicated in
The internal side face port (14) of filtration barrel body (4).
9. fore filter according to claim 1, it is characterised in that described outer cylinder body (2) and end cap (1) by
Brass material is made, and is connected between outer cylinder body (2) and end cap (1) by screw thread.
10. fore filter according to claim 1, it is characterised in that described blowdown component (3) includes being wholely set
Drainage interface (31) in outer cylinder body (2) lower end, and the ball valve (32) with handle is provided with the drainage interface (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720937617.5U CN207203594U (en) | 2017-07-31 | 2017-07-31 | Fore filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720937617.5U CN207203594U (en) | 2017-07-31 | 2017-07-31 | Fore filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207203594U true CN207203594U (en) | 2018-04-10 |
Family
ID=61814713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720937617.5U Active CN207203594U (en) | 2017-07-31 | 2017-07-31 | Fore filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207203594U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109045825A (en) * | 2018-09-12 | 2018-12-21 | 西尼（南京）阀门机械有限公司 | A kind of basket filter |
| CN109045824A (en) * | 2018-09-07 | 2018-12-21 | 西尼（南京）阀门机械有限公司 | Efficient basket filter |
| CN109045827A (en) * | 2018-09-12 | 2018-12-21 | 西尼（南京）阀门机械有限公司 | Basket filter |
| CN109045821A (en) * | 2018-09-07 | 2018-12-21 | 西尼（南京）阀门机械有限公司 | A kind of efficient basket filter |
| CN109045823A (en) * | 2018-09-07 | 2018-12-21 | 西尼（南京）阀门机械有限公司 | Efficient y-type filter |
| CN109045822A (en) * | 2018-09-07 | 2018-12-21 | 西尼（南京）阀门机械有限公司 | A kind of efficient y-type filter |
-
2017
- 2017-07-31 CN CN201720937617.5U patent/CN207203594U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109045824A (en) * | 2018-09-07 | 2018-12-21 | 西尼（南京）阀门机械有限公司 | Efficient basket filter |
| CN109045821A (en) * | 2018-09-07 | 2018-12-21 | 西尼（南京）阀门机械有限公司 | A kind of efficient basket filter |
| CN109045823A (en) * | 2018-09-07 | 2018-12-21 | 西尼（南京）阀门机械有限公司 | Efficient y-type filter |
| CN109045822A (en) * | 2018-09-07 | 2018-12-21 | 西尼（南京）阀门机械有限公司 | A kind of efficient y-type filter |
| CN109045825A (en) * | 2018-09-12 | 2018-12-21 | 西尼（南京）阀门机械有限公司 | A kind of basket filter |
| CN109045827A (en) * | 2018-09-12 | 2018-12-21 | 西尼（南京）阀门机械有限公司 | Basket filter |
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