CN109737051A - Negative pressure equipment solid-state waste residue filter device and clean method, self-suction oil pump, fuel charger - Google Patents
Negative pressure equipment solid-state waste residue filter device and clean method, self-suction oil pump, fuel charger Download PDFInfo
- Publication number
- CN109737051A CN109737051A CN201910199920.3A CN201910199920A CN109737051A CN 109737051 A CN109737051 A CN 109737051A CN 201910199920 A CN201910199920 A CN 201910199920A CN 109737051 A CN109737051 A CN 109737051A
- Authority
- CN
- China
- Prior art keywords
- check valve
- filter core
- filter
- valve
- waste residue
- 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.)
- Pending
Links
- 239000002699 waste material Substances 0.000 title claims abstract description 44
- 239000000446 fuel Substances 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 29
- 238000004140 cleaning Methods 0.000 claims abstract description 11
- 239000011324 bead Substances 0.000 claims description 13
- 230000014759 maintenance of location Effects 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 239000003921 oil Substances 0.000 description 29
- 230000037452 priming Effects 0.000 description 9
- 238000012423 maintenance Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 229920000459 Nitrile rubber Polymers 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Landscapes
- Filtration Of Liquid (AREA)
Abstract
A kind of negative pressure equipment solid-state waste residue filter device, including filter and check valve, the check valve include check valve valve body；The filter includes the close cylinder body of liquid and is located in the intracorporal filter core of the close cylinder of liquid, the close cylinder body of liquid includes the main body cylinder block and cylinder cap being detachably connected, the filter core is set on the check valve valve body, and the filter core is installed together with the check valve valve body, the check valve valve body is equipped with check valve inlet, and the check valve inlet is used to form the inlet of the filter.The step of its clean method includes separating main body cylinder block with cylinder cap, takes out filter core, filter core is separated with check valve, clean at least one in filter core and check valve.It is convenient for cleaning.A kind of fuel charger being equipped with self-suction oil pump is equipped with solid-state waste residue filter device in the oil inlet of self-suction oil pump, and the top of main body cylinder block is arranged in cylinder cap.It is avoided that oil plant leaks when cleaning.
Description
Technical field
The present invention relates to filter device technical fields, and in particular to a kind of negative pressure equipment solid-state waste residue filter device and its
Maintaining method.
The invention further relates to self-priming pump technical fields, and in particular to one kind is equipped with negative pressure equipment solid-state waste residue filtering dress
The self priming pump set.
The invention further relates to fuel charger technical fields, and in particular to one kind is equipped with negative pressure equipment solid-state waste residue filtering dress
The fuel charger set.
Background technique
Self priming pump is one of important component of fuel charger, for example, the fuel charger of certain model can be by the oil liquid in oil tank
It extracts out and force (forcing) pump warp let-off oil gun is discharged.Due to that may be mixed with solid-state waste residue in oil liquid raw material, in storage of oils or transmission process
It may also be mixed with solid-state waste residue, in order to avoid the solid-state waste residue that is mixed in oil liquid raw material is to the course of work of gasoline engine or diesel engine
It causes to damage, solid-state waste residue filter device is set generally in the conveyance conduit of fuel charger, such as at the oil inlet of self priming pump,
To meet the requirement of the normal work of self priming pump.
To meet self priming pump need of work, the liquid feeding side of self priming pump needs to be equipped with check valve.In addition, to avoid in pipeline
Solid-state waste residue enters the components in self priming pump in damage self priming pump, also needs to install solid-state waste residue mistake in the liquid feeding side of self priming pump
Filter.But solid-state waste residue filter needs periodic maintenance.
Summary of the invention
Goal of the invention of the invention is negative pressure equipment solid-state waste residue filter device, to solve existing negative pressure equipment with admittedly
The technical issues of state waste residue filter is not easy to cleaning.
During solving the technical problem, check valve may be mounted at the tapping side of solid-state waste residue filter device, but
It is in actual use, when the lower part of shell is arranged in the oil inlet of solid-state waste residue filter device, when oil liquid stops flowing
After dynamic, the granule foreign bigger than normal that solid-state waste residue filter device filters out can be fallen in pipeline, and when maintenance is not easy to cleaning pipeline
Interior solid-state waste residue, the presence of these solid-state waste residues can reduce the service life of the filter core of solid-state waste residue filter device.Work as solid-state
When the side of shell is arranged in the oil inlet of waste residue filter device, granule foreign meeting bigger than normal that solid-state waste residue filter device filters out
It falls in shell, but in maintenance, needs to pour out in the intracorporal solid-state waste residue of shell, at this moment the oil liquid in negative pressure equipment, to add
For oil machine, the oil liquid having in gear pump about 500~1000ml, the intracorporal oil liquid of shell can be leaked to the external world.It is especially oily
When liquid is flammable and combustible liquids, such as gasoline, kerosene, to meet safety standard, the difficulty of maintenance process is especially high.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
A kind of negative pressure equipment solid-state waste residue filter device, including filter and check valve are designed, the check valve includes unidirectional
Valve body；The filter includes the close cylinder body of liquid and is located in the intracorporal filter core of the close cylinder of liquid, and the close cylinder body of liquid includes detachable
The main body cylinder block and cylinder cap of connection, the filter core are set on the check valve valve body, and the filter core and the one-way valve
Body is installed together, and the check valve valve body is equipped with check valve inlet, and the check valve inlet is used to form the mistake
The inlet of filter.
Preferably, the filter further includes filter core pressure spring, and retention bead is equipped on the inner wall of the main body cylinder block,
The lateral surface of the filter core is held in the palm equipped with side, and the side support is connected in the retention bead, the both ends difference of the filter core pressure spring
It is connected to the filter core and the cylinder cap, so that the filter core is located in the close cylinder body of the liquid, the filter of the filter
Liquid outlet is arranged between the retention bead of the main body cylinder block and the cylinder cap.
Further, the retention bead is the annular solid being arranged along the inner wall of the main body cylinder block, in the limit convex
The side risen is equipped with annular groove, O-ring seals is equipped in the annular groove, the O-ring seals are for sealing the cylinder body
Gap between main body and the side of the filter core.
Preferably, limited shoulder, the check valve valve body and the filter core close-fitting are equipped in the outside of the check valve valve body
It closes or is threadedly coupled and be installed together, the foreign side of the filter core is arranged in the limited shoulder.
Preferably, the check valve further includes reset spring guide part, check valve locating part, unidirectional valve insert and unidirectional
Valve reset spring, the reset spring guide part are the bolt being mounted on the check valve valve body, the check valve locating part
For nut, the unidirectional valve insert and check valve reset spring are set on the reset spring guide part, and check valve is close
Packing fits in the check valve valve body, allows it to open and close the check valve inlet, the check valve locating part is used for
Limit the moving position of the other end of the reset spring.
The negative pressure equipment above-mentioned clean method of solid-state waste residue filter device, includes the following steps,
Main body cylinder block is separated with cylinder cap, filter core is taken out, filter core is separated with check valve, is cleaned in filter core and check valve at least
One.
Further, after cleaning filter core and check valve, filter core and check valve is installed together, filter core is located in cylinder
In phosphor bodies, head body is mounted on main body cylinder block.
A kind of self-suction oil pump is equipped with negative pressure equipment solid-state waste residue filtering above-mentioned in the oil inlet of the self-suction oil pump
The top of the main body cylinder block is arranged in device, the cylinder cap.
A kind of fuel charger is equipped with self-suction oil pump above-mentioned.
Preferably, unlatching negative pressure≤0.01Mpa of the check valve.
Compared with prior art, the beneficial effects of the present invention are: in cleaning, after separation main body cylinder block and cylinder cap,
Check valve can be taken out of while taking out filter core, be convenient for cleaning.When it is installed on self-suction oil pump or fuel charger,
It can be avoided leaking for oil plant when cleaning.
Detailed description of the invention
Fig. 1 is a kind of sectional view of negative pressure equipment solid-state waste residue filter device of the present invention.
Fig. 2 is the cross-sectional view of the A-A hatching along Fig. 1.
Fig. 3 is the bottom view of Fig. 1.
Fig. 4 is the top view of Fig. 1.
Fig. 5 is the cross-sectional view of the check valve in Fig. 1.
In figure, 1- main body cylinder block, 11- cylinder cap, 12- filter pipe plug, 13- filter inlet, 14- filter goes out liquid
Mouth, 2- filter core, 21- filter core handle, 31- O-ring seals, 32- filter Cover Gasket, 41- filter core pressure spring, 5- check valve, 51- are mono-
To valve body, 511- check valve inlet, 512- loads and unloads slot, 52- reset spring guide part, 53- check valve locating part, and 54- is mono-
To valve insert, 55- one-way valve spring seat, 56- one-way valve spring seat, 57- check valve reset spring.
Specific embodiment
Illustrate a specific embodiment of the invention with reference to the accompanying drawings and examples, but following embodiment is used only in detail
It describes the bright present invention in detail, does not limit the scope of the invention in any way.
Embodiment 1: a kind of negative pressure equipment solid-state waste residue filter device, referring to Fig. 1-5, including filter and check valve 5.
Filter is the prior art.As an example, referring to Fig. 1, filter includes the close cylinder body of liquid, filter core 2, the close cylinder of liquid
Body 1 includes the main body cylinder block 1 and cylinder cap 11 being detachably connected, and filter inlet 13 is equipped in the bottom of main body cylinder block 1, in cylinder
The side of phosphor bodies 1 is equipped with filter liquid outlet 14, and cylinder cap 11 is located at the top of main body cylinder block 1.Filter core 2 is located in main body cylinder block
In 1.
Check valve 5 is the prior art.As an example, referring to Fig. 1, Fig. 3 and Fig. 5, check valve 5 includes check valve valve body
51, reset spring guide part 52, check valve locating part 53, unidirectional valve insert 54 and reset spring 57, wherein in one-way valve
Body 51 is equipped with check valve inlet 511, and reset spring guide part 52 is fixed together with one-way valve valve body 51, and check valve is close
Packing 54, reset spring 57 are movably connected on reset spring guide part 52, and check valve locating part 53 is for limiting reset spring
Position of 57 other end on reset spring guide part 52.
Referring to Fig. 1, filter core 2 is set on check valve valve body 51, and filter core 2 is installed together with check valve valve body 51, this
Sample, filter core 2 can be dismantled with check valve 5 and be separated, for example, being threadedly coupled, tight fit connection, screw is fastenedly connected, unidirectionally
Valve inlet 511 is used to form the inlet 13 of filter.Referring to Fig. 5, when filter core 2 is threadedly coupled with check valve valve body 51,
To be easy to disassemble, handling slot 512 can be set on check valve valve body 51, in this way, can fix filter core 2 when disassembly, then make
With no more than handling groove width, slot 512 is not loaded and unloaded in tool (bottle opener, flat mouth file, Steel Ruler etc.) insertion of shorter than filter core diameter
It is interior, by rotation, check valve valve body 51 is made to rotate clockwise or rotate counterclockwise, completes check valve valve body 51 and be mounted on filter core 2
Above or from filter core 2 remove.
It should be understood that when negative pressure equipment is not installed with solid-state waste residue filter device, Qi Ding, bottom, side position be
It is transformable, for convenience of explanation, the present embodiment referring to Fig.1 shown in top, bottom, side relative position make an explanation, but simultaneously
Its absolute position is not limited.
Embodiment 2: a kind of negative pressure equipment solid-state waste residue filter device, the present embodiment is as to the preferred of embodiment 1, ginseng
See Fig. 1-5, check valve 5 further includes one-way valve spring seat 55, one-way valve spring seat 56, one-way valve spring seat 55 and one-way valve spring
Distance is equipped between seat 56, in favor of the deformation of reset spring 57.For example, one-way valve spring seat 56 is the cap body with centre bore,
Cap body can be located on reset spring, and one-way valve spring seat 55 is the component with centre bore, and edge in the centre bore of the component
Equipped with bending to form button edge, button is along can be inserted into reset spring 57.
Reset spring guide part 52 can be rod-shaped, such as shape shown in fig. 5, at this moment, unidirectional valve insert 54, multiple
Position spring 57 is set on reset spring guide part 52, it is preferred that reset spring guide part 52 is bolt, such as interior hexagonal spiral shell
Bolt, outer-hexagonal bolt, reset spring locating part 53 is nut, in this way, reset spring guide part 52 and reset spring locating part 53
It can be detachably connected.Reset spring guide part 52 can be the cap body of drag-out mouth, at this moment, reset spring guiding
Part 52 is located on reset spring 57 and unidirectional valve insert 54, and reset spring locating part 53 can be reset spring guide part 52
A part.When reset spring guide part 52 is hat, reset spring guide part 52 is preferably solid with check valve valve body 51
It is scheduled on together, and check valve inlet 511 should be able to be connected to the inside of reset spring guide part 52.
Referring to Fig. 1, it is equipped with limited shoulder in the outside of check valve valve body 51, check valve valve body 51 and 2 tight fit of filter core are installed
Together, the foreign side of filter core 2 is arranged in limited shoulder.
Referring to Fig. 1-4, filter further includes filter core pressure spring 41, bottom opening is equipped in the bottom of main body cylinder block 1, in cylinder body master
The inner wall of body 1 be equipped with retention bead, the bottom of filter core 2 be equipped with side hold in the palm, when filter core 2 be arranged in main body cylinder block 1 when, side support and
Retention bead cooperation, to limit the activity thresholds position of wherein one end of filter core 2, filter core pressure spring 41 is arranged in filter core 2 and cylinder cap
Between 11, so that filter core 2 is positioned relative to main body cylinder block 1, at this point, the limit of main body cylinder block 1 is arranged in filter liquid outlet 14
In lateral side regions between protrusion and cylinder cap 11.
As further preferred, retention bead is the annular solid being arranged along the inner wall of main body cylinder block 1, is set in retention bead
There is annular groove, O-ring seals 31 is equipped in the annular groove, O-ring seals 31 are for sealed cylinder block main body 1 and filter core 2
Gap between side.
Unidirectional valve insert 54 can select nitrile rubber gasket, unlatching negative pressure≤0.01Mpa of check valve.
O-ring seals 31 can select nitrile rubber identical with check valve gasket material as sealing material.
As needed, another open can be set in the lateral side regions between the retention bead and cylinder cap 11 of main body cylinder block 1
Mouthful, and the opening is blocked using filter pipe plug 12, to utilize the opening when needed.
As needed, in the present embodiment, one end of filter core 2 has filter core handle, convenient for taking out filter core.Cylinder cap 11 with
Junction between main body cylinder block 1 is equipped with filter Cover Gasket 32.
Embodiment 3: the clean method of the negative pressure equipment of embodiment 1 or embodiment 2 solid-state waste residue filter device, including such as
Lower step,
Main body cylinder block 1 is separated with cylinder cap 11, filter core 2 is taken out, filter core 2 is separated with check valve 5, cleans filter core 2 as needed
With check valve 5 at least one.
Embodiment 4: the clean method of the negative pressure equipment of embodiment 1 or embodiment 2 solid-state waste residue filter device, including such as
Lower step,
Main body cylinder block 1 is separated with cylinder cap 11, filter core 2 is taken out, filter core 2 is separated with check valve 5, cleans filter core 2 as needed
With check valve 5 at least one,
After filter core 2 and check valve 5 clean, filter core 2 and check valve 5 are installed together, for example, filter core 2 is set in
The top of check valve valve body 51 and together with 5 tight fit connection of check valve, filter core 2 is located in main body cylinder block 1, by cylinder cap
11 main bodys are mounted on main body cylinder block 1.
Embodiment 5: a kind of self-suction oil pump is equipped with the negative pressure equipment in embodiment 1 or 2 in the oil inlet of self-suction oil pump and uses
The top of main body cylinder block 1 is arranged in solid-state waste residue filter device, cylinder cap 11.
Embodiment 6: a kind of fuel charger is equipped with the self-suction oil pump of embodiment 5, in the oil inlet of the self-suction oil pump of embodiment 5
Mouth is equipped with the negative pressure equipment solid-state waste residue filter device in embodiment 1 or 2, and the top of main body cylinder block 1 is arranged in cylinder cap 11.
Top in embodiment 5 and embodiment 6 is absolute top, and the purpose is to avoid cleaning negative pressure equipment solid-state useless
When slag filter, the oil stream in main body cylinder block 1 and self-suction oil pump goes out.
The present invention is described in detail above in conjunction with drawings and examples, still, those of skill in the art
Member is it is understood that without departing from the purpose of the present invention, can also carry out each design parameter in above-described embodiment
Change, forms multiple specific embodiments, is common variation range of the invention, is no longer described in detail one by one herein.
Claims (10)
1. a kind of negative pressure equipment solid-state waste residue filter device, including filter and check valve, the check valve include check valve
Valve body；The filter includes the close cylinder body of liquid and is located in the intracorporal filter core of the close cylinder of liquid, and the close cylinder body of liquid includes detachably connecting
The main body cylinder block and cylinder cap connect, which is characterized in that the filter core is set on the check valve valve body, and the filter core with it is described
Check valve valve body is installed together, and the check valve valve body is equipped with check valve inlet, and the check valve inlet is used for shape
At the inlet of the filter.
2. negative pressure equipment as described in claim 1 solid-state waste residue filter device, which is characterized in that the filter further includes
Filter core pressure spring is equipped with retention bead on the inner wall of the main body cylinder block, holds in the palm in the lateral surface of the filter core equipped with side, the side
Support is connected in the retention bead, and the both ends of the filter core pressure spring are connected to the filter core and the cylinder cap respectively, so that institute
It states filter core to be located in the close cylinder body of the liquid, the limit convex of the main body cylinder block is arranged in the filter liquid outlet of the filter
It rises between the cylinder cap.
3. negative pressure equipment as claimed in claim 2 solid-state waste residue filter device, which is characterized in that the retention bead is edge
The annular solid of the inner wall setting of the main body cylinder block is equipped with annular groove in the side of the retention bead, in the annular groove
Equipped with O-ring seals, the O-ring seals are used to seal the gap between the main body cylinder block and the side of the filter core.
4. negative pressure equipment as described in claim 1 solid-state waste residue filter device, which is characterized in that in the check valve valve body
Outside be equipped with limited shoulder, the check valve valve body and the filter core tight fit or be threadedly coupled is installed together, the limit
The foreign side of the filter core is arranged in shoulder.
5. negative pressure equipment as described in claim 1 solid-state waste residue filter device, which is characterized in that the check valve further includes
Reset spring guide part, check valve locating part, unidirectional valve insert and check valve reset spring, the reset spring guide part are
The bolt being mounted on the check valve valve body, the check valve locating part are nut, the unidirectional valve insert and check valve
Reset spring is set on the reset spring guide part, and unidirectional valve insert fits in the check valve valve body, so that its
The check valve inlet can be opened and closed, the check valve locating part is used to limit the activity bit of the other end of the reset spring
It sets.
6. the negative pressure equipment according to any one of claims 1 to 5 clean method of solid-state waste residue filter device, feature
Be, include the following steps, main body cylinder block is separated with cylinder cap, take out filter core, filter core is separated with check valve, cleaning filter core with
At least one of check valve.
7. the negative pressure equipment as claimed in claim 6 clean method of solid-state waste residue filter device, which is characterized in that cleaning
After filter core and check valve, filter core and check valve are installed together, filter core is located in main body cylinder block, head body is installed
On main body cylinder block.
8. a kind of self-suction oil pump, which is characterized in that in the oil inlet installation such as any one of claim 1-5 of the self-suction oil pump
The top of the main body cylinder block is arranged in negative pressure equipment solid-state waste residue filter device, the cylinder cap.
9. a kind of fuel charger, which is characterized in that be equipped with self-suction oil pump as claimed in claim 9.
10. fuel charger as claimed in claim 9, which is characterized in that unlatching negative pressure≤0.01Mpa of the check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910199920.3A CN109737051A (en) | 2019-03-15 | 2019-03-15 | Negative pressure equipment solid-state waste residue filter device and clean method, self-suction oil pump, fuel charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910199920.3A CN109737051A (en) | 2019-03-15 | 2019-03-15 | Negative pressure equipment solid-state waste residue filter device and clean method, self-suction oil pump, fuel charger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109737051A true CN109737051A (en) | 2019-05-10 |
Family
ID=66370727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910199920.3A Pending CN109737051A (en) | 2019-03-15 | 2019-03-15 | Negative pressure equipment solid-state waste residue filter device and clean method, self-suction oil pump, fuel charger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109737051A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112642200A (en) * | 2020-12-01 | 2021-04-13 | 任林赟 | High-pressure filter |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202844761U (en) * | 2012-10-22 | 2013-04-03 | 耿惠敏 | Pre-pressing type air filter with conveniently replaced filter element |
| CN203146055U (en) * | 2013-03-05 | 2013-08-21 | 黄增宇 | Oil path filter with check valve |
| CN203549007U (en) * | 2013-10-09 | 2014-04-16 | 正星科技有限公司 | Overhead oil tank bottom valve |
| CN203963142U (en) * | 2014-07-04 | 2014-11-26 | 郑州三金石油设备制造有限公司 | A kind of oil circuit one-way valve |
| CN205823801U (en) * | 2016-07-26 | 2016-12-21 | 吴国明 | Oil absorption filter |
| US20180065067A1 (en) * | 2015-03-12 | 2018-03-08 | Hengst Se & Co. Kg | Filter having a filter bypass valve, and filter cartridge therefor |
| CN207805205U (en) * | 2017-12-29 | 2018-09-04 | 青岛澳波环保科技有限责任公司 | A kind of self-priming water pumping detection property filter core |
| CN209604237U (en) * | 2019-03-15 | 2019-11-08 | 正星科技股份有限公司 | Negative pressure equipment solid-state waste residue filter device and self-suction oil pump, fuel charger |
-
2019
- 2019-03-15 CN CN201910199920.3A patent/CN109737051A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202844761U (en) * | 2012-10-22 | 2013-04-03 | 耿惠敏 | Pre-pressing type air filter with conveniently replaced filter element |
| CN203146055U (en) * | 2013-03-05 | 2013-08-21 | 黄增宇 | Oil path filter with check valve |
| CN203549007U (en) * | 2013-10-09 | 2014-04-16 | 正星科技有限公司 | Overhead oil tank bottom valve |
| CN203963142U (en) * | 2014-07-04 | 2014-11-26 | 郑州三金石油设备制造有限公司 | A kind of oil circuit one-way valve |
| US20180065067A1 (en) * | 2015-03-12 | 2018-03-08 | Hengst Se & Co. Kg | Filter having a filter bypass valve, and filter cartridge therefor |
| CN205823801U (en) * | 2016-07-26 | 2016-12-21 | 吴国明 | Oil absorption filter |
| CN207805205U (en) * | 2017-12-29 | 2018-09-04 | 青岛澳波环保科技有限责任公司 | A kind of self-priming water pumping detection property filter core |
| CN209604237U (en) * | 2019-03-15 | 2019-11-08 | 正星科技股份有限公司 | Negative pressure equipment solid-state waste residue filter device and self-suction oil pump, fuel charger |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112642200A (en) * | 2020-12-01 | 2021-04-13 | 任林赟 | High-pressure filter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20130270171A1 (en) | Filtration system and assembly thereof | |
| US20170274501A1 (en) | Wet Abrasive Blasting System with Self-Venting Assembly | |
| CN209604237U (en) | Negative pressure equipment solid-state waste residue filter device and self-suction oil pump, fuel charger | |
| CN109737051A (en) | Negative pressure equipment solid-state waste residue filter device and clean method, self-suction oil pump, fuel charger | |
| CN206837626U (en) | A kind of basket type filter | |
| CN205842067U (en) | A kind of steering joint with filter screen | |
| CN2581044Y (en) | Back-washing filter | |
| CN207213499U (en) | A kind of self-fastening sealing structure that can open soon of pipe cleaning valve | |
| CN206290871U (en) | Plane hydraulic system hydraulic oil liquid sampling apparatus | |
| CN202371421U (en) | Novel oil tank | |
| CN104289046B (en) | Natural gas filter | |
| CN204107202U (en) | New type natural air filter | |
| CN209196166U (en) | A kind of irrigation control valve | |
| KR20130063048A (en) | Plain sliding type lpg filler | |
| CN106246530A (en) | A kind of Novel plunger pump suction manifold | |
| CN206730642U (en) | A kind of element kit of filter | |
| CN220392179U (en) | Waste liquid collecting barrel of purification system | |
| CN205667747U (en) | A kind of fishpond minifilters | |
| CN204767749U (en) | Water purifier maintenance drip proof device | |
| CN219326140U (en) | Novel withstand voltage storage tank and automatic atmospheric pressure oiling system | |
| CN219898051U (en) | Hydrogen production equipment with good sealing performance | |
| CN219299528U (en) | Oil-gas separation filter for vacuum pump | |
| CN204841155U (en) | Large -traffic candle filter | |
| CN107126748A (en) | A kind of element kit of filter | |
| CN210716895U (en) | Novel special oil drain cover with valve for lubricating oil barrel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |