CN207307321U - A kind of liquid filter - Google Patents
A kind of liquid filter Download PDFInfo
- Publication number
- CN207307321U CN207307321U CN201721277740.5U CN201721277740U CN207307321U CN 207307321 U CN207307321 U CN 207307321U CN 201721277740 U CN201721277740 U CN 201721277740U CN 207307321 U CN207307321 U CN 207307321U
- Authority
- CN
- China
- Prior art keywords
- return
- end cap
- filter
- return diaphragm
- diaphragm
- Prior art date
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- 239000007788 liquid Substances 0.000 title claims abstract description 53
- 239000012528 membrane Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 abstract description 6
- 238000001914 filtration Methods 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000010721 machine oil Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
It the utility model is related to a kind of liquid filter, the filter includes filter case, the central tube being arranged in filter box body and the filter core being set in outside central tube, the bottom of filter case offers inlet, the bottom of central tube offers liquid outlet, inlet and liquid outlet are mutually separated by the bottom sidewall of central tube, the bottom of filter core is equipped with integral type non-return mechanism, and top and the filter core of the integral type non-return mechanism snap connection, and bottom separates with filter case and contacts.Compared with prior art, non-return diaphragm is pre-installed on end cap by the utility model, is integrally formed both, processing and assembling process are not only simplify, and due to using monoblock type assembly and disassembly mode, avoiding the mobile dislocation of non-return diaphragm, it ensure that the normal work of non-return diaphragm, be easy to dismounting and safeguard.
Description
Technical field
The utility model belongs to liquid filtration art, is related to a kind of liquid filter.
Background technology
Liquid filter is a kind of device common on liquid conducting pipes, for eliminating the impurity in liquid, with protection
The normal use of valve and miscellaneous equipment.After liquid enters in the filter box body equipped with filter core, the impurity quilt in liquid
Filter core stops, and clean filtrate is discharged after then passing through filter core by filter outlet.
In a motor vehicle, in order to ensure the cleaning of machine oil or fuel oil, motor vehicle safe and stable operation is enable, generally in vapour
In-car installs the liquid filter such as oil filter or fuel filter additional.In order to avoid the machine oil in liquid filter or fuel oil fall
Stream, usually sets check-valves in filter box body, makes the liquid in influent filter can only one way flow.It is existing
Check-valves used in liquid filter is mostly diaphragm type check-valves, when mounted, diaphragm type check-valves first is loaded filter
Filter core, is put into filter box body by predeterminated position in housing again afterwards.Which is not only cumbersome, it is difficult to it is accurately positioned,
And when being put into filter core, the dislocation of diaphragm type check-valves is easy to cause, and then influence the normal work of check-valves.
Utility model content
The purpose of this utility model is exactly to provide a kind of liquid filtering to overcome the problems of the above-mentioned prior art
Device.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of liquid filter, the filter include filter case, the central tube that is arranged in filter box body and
The filter core being set in outside central tube, the bottom of the filter case offer inlet, the bottom of the central tube
Liquid outlet is offered, inlet and liquid outlet are mutually separated by the bottom sidewall of the central tube, and the bottom of the filter core is set
There is integral type non-return mechanism, top and the filter core of the integral type non-return mechanism snap connection, and bottom is separated with filter case
Contact.The top of filter core is connected with the inner wall of filter case.The end face of filter core is in circular ring shape.The aneroid inside filter case
When body flows, the bottom of integral type non-return mechanism is in contact with filter case；When liquid flows into filter case by inlet
When internal, liquid makes bottom and the filter case of integral type non-return mechanism to being oppressed on the inside of integral type non-return mechanism
Runner between separation, bottom that liquid just can be through integral type non-return mechanism and filter case flows to filter core；When liquid is by filtering
When clear device enclosure interior flows to inlet, liquid makes integral type non-return mechanism to being oppressed on the outside of integral type non-return mechanism
Bottom compressing filter case, make to be in close contact between integral type non-return mechanism and filter case, liquid just cannot pass through,
Thus liquid can only in filter box body one way flow, realize the non-return of liquid.
The filter case includes upper shell and lower housing shell, and the upper shell detachably connects with lower housing shell
Connect.Filter case is divided into dismountable two parts up and down, easy to the dismounting of each component in filter box body.
The lateral wall of the upper shell is equipped with external screw thread, and the madial wall of the lower housing shell is equipped with internal thread, institute
The upper shell stated is connected through a screw thread mode with lower housing shell and is detachably connected.Thread connecting mode can improve upper shell and lower casing
Installation effectiveness and installation accuracy between body.
Upper shell positioning convex platform is additionally provided with the lateral wall of the upper shell, which is located at external screw thread
Top.Upper shell and lower housing shell are relatively rotated, upper shell is installed together with lower housing shell, when lower housing shell top with it is upper
During the bottom contact of housing positioning convex platform, show to be installed in place.
The integral type non-return mechanism includes the non-return film for being arranged on the end cap of filter core bottom and being arranged on end cap
Piece, top and the filter core of the end cap snap connection, the inner be fixedly connected with central tube, the bottom of the non-return diaphragm and
The inner wall of filter case separates contact.End cap is integral type with non-return diaphragm, while end cap is fixed with filter core, central tube again
Connection so that non-return diaphragm, end cap, filter core and central tube are integrally formed, and when mounted, are loaded overall in filter box body i.e.
Can.
The end cap includes being arranged on the end cap horizontal part of filter core bottom and is arranged on the end of end cap horizontal part outer end
Lid vertical portion, the inner of the end cap horizontal part are fixedly connected with central tube, the top of the end cap vertical portion equipped with
The grab that filter core is adapted.The card slot being adapted with grab is offered on the bottom outside wall of filter core.Filter core is sleeved on central tube
On, and the grab on end cap is stuck in the card slot on filter core, it is integrally formed filter core, end cap and central tube, easy to overall peace
Dress and dismounting.
As preferable technical solution, the bottom of the filter core is equipped with enhancement layer, and the card slot is opened in enhancement layer
On.The intensity of enhancement layer is larger, can be good fit with grab, and avoids filter core from deforming.
The non-return diaphragm includes the non-return diaphragm fixed part that is fixedly connected with end cap and is arranged on non-return diaphragm consolidating
Determine the non-return membrane flexive portion of portion bottom, the bottom in the non-return membrane flexive portion is separated with the inner wall of filter case to be contacted.
Non-return diaphragm is installed on end cap by non-return diaphragm fixed part, and is integrally formed with end cap.In liquid to non-return membrane flexive
Under pressure effect on the inside of portion, the bottom in non-return membrane flexive portion is separated with the inner wall of filter case, makes non-return membrane flexive
The runner of liquid communication is formed between the bottom in portion and the inner wall of filter case.
The internal diameter in the non-return membrane flexive portion is from top to bottom sequentially increased.The non-return that internal diameter is from top to bottom sequentially increased
Membrane flexive portion has non-return characteristic, when being subject to fluid pressure to act on the inside of non-return membrane flexive portion, non-return membrane flexive
The bottom in portion is separated with the inner wall of filter case；When being subject to fluid pressure to act on the outside of non-return membrane flexive portion, due to
The stop and supporting role of filter case inner wall, the bottom in non-return membrane flexive portion and the inner wall of filter case closely connect
Touch, non-return is carried out to liquid.
As preferable technical solution, the lower housing shell includes vertical portion, lower housing shell water on the lower housing shell that is sequentially connected
Vertical portion under flat portion and lower housing shell, is threadedly coupled on the lower housing shell, the lower housing shell water between vertical portion and upper shell
Flat portion separates with the bottom in non-return membrane flexive portion and contacts, under the lower housing shell bottom sidewall of vertical portion and central tube it
Between be inlet.
Multiple non-return diaphragm mounting holes are circumferentially uniformly provided with the end cap along end cap, the non-return diaphragm is fixed
Portion is fastened on end cap by non-return diaphragm mounting hole.Non-return diaphragm mounting hole is opened in end cap horizontal part, and non-return diaphragm is fixed
End cap horizontal part is run through by non-return diaphragm mounting hole in portion, and is stuck on end cap horizontal part, non-return diaphragm is become one with end cap
Body.
The non-return diaphragm fixed part includes being arranged on fixed part on the non-return diaphragm between end cap and filter core, being arranged on
Fixed part and fixed part and non-return film on non-return diaphragm are arranged under non-return diaphragm between end cap and non-return membrane flexive portion
Between under piece fixed part and through non-return diaphragm mounting hole non-return diaphragm connecting portion.Pass through fixed part, non-return on non-return diaphragm
The cooperation of fixed part and non-return diaphragm connecting portion, makes non-return diaphragm be stuck on end cap horizontal part under diaphragm.
As preferable technical solution, the non-return diaphragm is fixedly connected using injection molding with end cap.Will be with
The mould that non-return diaphragm is adapted is placed in predetermined position on end cap, afterwards using injection molding, by non-return diaphragm in mould
Injection molding in tool, removes mould afterwards, and non-return diaphragm is integrally formed easy to end cap.Using injection molding, by non-return film
The connection of the shaping of piece, non-return diaphragm and end cap is combined into one, and not only simplify the process of non-return diaphragm, while easy to will
Non-return diaphragm is installed on end cap.
As preferable technical solution, the positioning being adapted with filter core or central tube is additionally provided with the filter box body
Block.By being integrally placed in filter box body for non-return diaphragm, end cap, filter core and central tube composition, positioned by locating piece,
Ensure the accuracy and convenience of installation.
The utility model in practical application, liquid through inlet enter filter case inside, compressing non-return diaphragm with
After filter case separation, filter core is flowed to through the runner between non-return diaphragm and filter case, after filter element filtering, by going out liquid
Mouth outflow.
Non-return diaphragm is first molded in process and assemble and is installed on end cap by the utility model using injection molding
On, end cap is installed together with central tube, filter core respectively afterwards, and integrally loads in filter box body.
Compared with prior art, the utility model has the characteristics that：
1) non-return diaphragm is pre-installed on end cap, is integrally formed both, not only simplify processing and assembling process,
And due to using monoblock type assembly and disassembly mode, avoiding the mobile dislocation of non-return diaphragm, ensure that the normal work of non-return diaphragm, easily
Safeguarded in dismounting；
2) non-return diaphragm, end cap, filter core and central tube are integrally formed, and can rapidly and accurately realize non-return diaphragm in filtering
Positioning in device housing, ensures the reliable and stable work of liquid filter.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Description of symbols in figure：
1-filter case, 101-upper shell, 102-lower housing shell, 103-upper shell positioning convex platform, 2-central tube,
3-filter core, 4-liquid outlet, 5-inlet, 6-end cap, 601-end cap horizontal part, 602-end cap vertical portion, 603-card
It is hook, 7-non-return diaphragm, 701-non-return diaphragm fixed part, solid under fixed part, 7012-non-return diaphragm on 7011-non-return diaphragm
Determine portion, 7013-non-return diaphragm connecting portion, 702-non-return membrane flexive portion.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with the utility model
Implemented premised on technical solution, give detailed embodiment and specific operating process, but the guarantor of the utility model
Shield scope is not limited to following embodiments.
Embodiment：
A kind of liquid filter as shown in Figure 1, the filter include filter case 1, are arranged in filter case 1
Central tube 2 and the filter core 3 that is set in outside central tube 2, the bottom of filter case 1 offers inlet 5, central tube 2
Bottom offer liquid outlet 4, inlet 5 and liquid outlet 4 are mutually separated by the bottom sidewall of central tube 2, and the bottom of filter core 3 is equipped with
Integral type non-return mechanism, top and the filter core 3 of the integral type non-return mechanism snap connection, and bottom is separable with filter case 1
Contact.
Wherein, filter case 1 includes upper shell 101 and lower housing shell 102, and upper shell 101 and lower housing shell 102 are removable
Unload connection.The lateral wall of upper shell 101 is equipped with external screw thread, and the madial wall of lower housing shell 102 is equipped with internal thread, upper shell 101
Mode is connected through a screw thread with lower housing shell 102 to be detachably connected.Upper shell positioning convex platform is additionally provided with the lateral wall of upper shell 101
103, which is located at externally threaded top.
Integral type non-return mechanism includes the non-return diaphragm 7 for being arranged on the end cap 6 of 3 bottom of filter core and being arranged on end cap 6,
The top of end cap 6 is snapped connection with filter core 3, and the inner is fixedly connected with central tube 2, bottom and the filter case 1 of non-return diaphragm 7
Inner wall separate contact.End cap 6 includes being arranged on the end cap horizontal part 601 of 3 bottom of filter core and is arranged on end cap horizontal part
The end cap vertical portion 602 of 601 outer ends, the inner of end cap horizontal part 601 are fixedly connected with central tube 2, the top of end cap vertical portion 602
Portion is equipped with the grab 603 being adapted with filter core 3.Non-return diaphragm 7 includes the non-return diaphragm fixed part 701 being fixedly connected with end cap 6
And it is arranged on the non-return membrane flexive portion 702 of 701 bottom of non-return diaphragm fixed part, the bottom in the non-return membrane flexive portion 702
Separate and contact with the inner wall of filter case 1.The internal diameter in non-return membrane flexive portion 702 is from top to bottom sequentially increased.On end cap 6
Multiple non-return diaphragm mounting holes are uniformly provided with along end cap 6 is circumferential, non-return diaphragm fixed part 701 passes through non-return diaphragm mounting hole card
It is located on end cap 6.Non-return diaphragm fixed part 701 includes being arranged on fixed part on the non-return diaphragm between end cap 6 and filter core 3
7011st, it is arranged on fixed part 7012 under the non-return diaphragm between end cap 6 and non-return membrane flexive portion 702 and is arranged on non-return film
Under on piece fixed part 7011 and non-return diaphragm between fixed part 7012 and through non-return diaphragm mounting hole non-return diaphragm connecting portion
7013。
In process and assemble, first non-return diaphragm 7 is molded and on end cap 6 using injection molding, afterwards will
End cap 6 is installed together with central tube 2, filter core 3 respectively, and is integrally loaded in filter case 1.
In practical application, liquid enters inside filter case 1 through inlet 5, compressing non-return diaphragm 7 and filter box
After body 1 separates, filter core 3 is flowed to through the runner between non-return diaphragm 7 and filter case 1, after the filtering of filter core 3, by liquid outlet 4
Outflow.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using practicality
It is new.Person skilled in the art obviously easily can make these embodiments various modifications, and illustrating herein
General Principle be applied in other embodiment without by performing creative labour.Therefore, the utility model is not limited to above-mentioned
Embodiment, those skilled in the art's announcement according to the present utility model, do not depart from improvement that the utility model category made and
Modification all should be within the scope of protection of the utility model.
Claims (10)
1. a kind of liquid filter, it is characterised in that the filter includes filter case (1), is arranged on filter case (1)
Interior central tube (2) and the filter core (3) being set in outside central tube (2), the bottom of the filter case (1) offers
Inlet (5), the bottom of the central tube (2) offer liquid outlet (4), and the bottom sidewall of the central tube (2) will be into
Liquid mouth (5) and liquid outlet (4) are mutually separated, and the bottom of the filter core (3) is equipped with integral type non-return mechanism, the integral type non-return machine
The top of structure is snapped connection with filter core (3), and bottom separates with filter case (1) and contacts.
2. a kind of liquid filter according to claim 1, it is characterised in that the filter case (1) includes upper
Housing (101) and lower housing shell (102), and the upper shell (101) is detachably connected with lower housing shell (102).
A kind of 3. liquid filter according to claim 2, it is characterised in that the lateral wall of the upper shell (101)
External screw thread is equipped with, the madial wall of the lower housing shell (102) is equipped with internal thread, the upper shell (101) and lower housing shell
(102) mode is connected through a screw thread to be detachably connected.
A kind of 4. liquid filter according to claim 3, it is characterised in that the lateral wall of the upper shell (101)
On be additionally provided with upper shell positioning convex platform (103), which is located at externally threaded top.
5. a kind of liquid filter according to claim 1, it is characterised in that the integral type non-return mechanism includes setting
Put the end cap (6) in filter core (3) bottom and the non-return diaphragm (7) that is arranged on end cap (6), the top of the end cap (6)
Snapped connection with filter core (3), the inner is fixedly connected with central tube (2), the bottom of the non-return diaphragm (7) and filter case
(1) inner wall separates contact.
6. a kind of liquid filter according to claim 5, it is characterised in that the end cap (6) includes being arranged on filter
The end cap horizontal part (601) of core (3) bottom and the end cap vertical portion (602) for being arranged on end cap horizontal part (601) outer end, it is described
The inner of end cap horizontal part (601) be fixedly connected with central tube (2), the top of the end cap vertical portion (602) equipped with
The grab (603) that filter core (3) is adapted.
7. a kind of liquid filter according to claim 5, it is characterised in that the non-return diaphragm (7) includes and end
Lid (6) the non-return diaphragm fixed part (701) that is fixedly connected and the non-return diaphragm for being arranged on non-return diaphragm fixed part (701) bottom
Elastic portion (702), the bottom in the non-return membrane flexive portion (702) is separated with the inner wall of filter case (1) to be contacted.
A kind of 8. liquid filter according to claim 7, it is characterised in that the non-return membrane flexive portion (702)
Internal diameter be from top to bottom sequentially increased.
9. a kind of liquid filter according to claim 7, it is characterised in that along end cap (6) week on the end cap (6)
To multiple non-return diaphragm mounting holes are uniformly provided with, the non-return diaphragm fixed part (701) passes through non-return diaphragm mounting hole card
It is located on end cap (6).
A kind of 10. liquid filter according to claim 9, it is characterised in that the non-return diaphragm fixed part (701)
Including being arranged on fixed part (7011) on the non-return diaphragm between end cap (6) and filter core (3), being arranged on end cap (6) and non-return film
Under non-return diaphragm between piece elastic portion (702) fixed part (7012) and be arranged on non-return diaphragm fixed part (7011) with only
Return under diaphragm between fixed part (7012) and through the non-return diaphragm connecting portion (7013) of non-return diaphragm mounting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721277740.5U CN207307321U (en) | 2017-09-30 | 2017-09-30 | A kind of liquid filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721277740.5U CN207307321U (en) | 2017-09-30 | 2017-09-30 | A kind of liquid filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207307321U true CN207307321U (en) | 2018-05-04 |
Family
ID=62429050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721277740.5U Active CN207307321U (en) | 2017-09-30 | 2017-09-30 | A kind of liquid filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207307321U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110772873A (en) * | 2019-11-25 | 2020-02-11 | 浙江威泰汽配有限公司 | Installation guide structure of filter element end cover |
-
2017
- 2017-09-30 CN CN201721277740.5U patent/CN207307321U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110772873A (en) * | 2019-11-25 | 2020-02-11 | 浙江威泰汽配有限公司 | Installation guide structure of filter element end cover |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |