CN101590338B - Filtering device - Google Patents
Filtering device Download PDFInfo
- Publication number
- CN101590338B CN101590338B CN2008100380734A CN200810038073A CN101590338B CN 101590338 B CN101590338 B CN 101590338B CN 2008100380734 A CN2008100380734 A CN 2008100380734A CN 200810038073 A CN200810038073 A CN 200810038073A CN 101590338 B CN101590338 B CN 101590338B
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- China
- Prior art keywords
- pipe
- tube wall
- filter screen
- annular groove
- filter
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- 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.)
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- Filtration Of Liquid (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a filtering device comprising a sieve and a pipe. The sieve is round and elastic. The pipe is provided with a hole. The sieve and the hole are concentrically arranged on the wall of the pipe. The filtering device is characterized in that the sieve is provided with a round central lug boss, an annular rim and an annular groove arranged between the central lug boss and the annular rim; when the bottom of the annular groove leans against the wall of the pipe, the annular rim and the wall of the pipe are spaced from each other by a distance, and after being subject to elastic deformation, the annular rim is attached to the wall of the pipe and is fixed on the wall of the pipe by means of spot welding, therefore, the bottom of the annular groove and the wall of the pipe are caused to be mutually squeezed so as to achieve the sealing function, and then the hole is covered in the central lug boss of the sieve so that fluid passes through the sieve and is filtered before entering the hole from the outside of the pipe.
Description
Technical field
The present invention relates to a kind of filter, and relate in particular to the filter that is used to filter oil return.
Background technology
Usually, in oil return apparatus, make it lose the oil return effect in order to prevent impurity or block from stopping up spill port, needing increases filter in addition so that oil return is filtered.Fig. 1 shows a kind of known oil-returning filtering device, and this filter has the filter screen bracket 12 of filter screen 11 and this filter screen of supporting, is filtered the back from the oil return of top by filter screen 11 and gets into this pipe through the spill port on the pipe of below 13.This filter apparatus configuration is complicated, and manufacturing process is also complicated, and cost is higher.
Summary of the invention
The object of the present invention is to provide a kind of filter, to overcome the shortcoming of existing filter.
According to the present invention, a kind of filter is provided, it comprises filter screen and pipe; Said filter screen is circular and has elasticity; Said pipe is provided with the hole, and said filter screen and said hole are installed on the tube wall of said pipe with one heart, it is characterized in that; Said filter screen has circular central lug boss, ring edge and the annular groove between said central boss and ring edge; When the bottom of said annular groove abuts on the tube wall of said pipe, be spaced a distance between said ring edge and the tube wall, said ring edge reclines with said tube wall through elastic deformation; And be fixed on the said tube wall through spot welding; Thereby make mutual extrusion between bottom and the said tube wall of said annular groove and play sealing function, with said maskaperture mask in the central boss of said filter screen, thereby fluid from said pipe outside get into said hole before through said strainer filtering.
Preferably, also fix between the bottom of the annular groove of said filter screen and the said tube wall through spot welding.
Preferably, the solder joint between the solder joint between the bottom of the annular groove of said filter screen and the said tube wall and the ring edge of said filter screen and the said tube wall staggers in a circumferential direction each other, with further enhancing sealing effectiveness.
Simple and the low production cost of filter apparatus configuration of the present invention.
Description of drawings
Fig. 1 is a kind of cutaway view of known oil-returning filtering device;
Fig. 2 is the front view according to filter of the present invention, wherein not welding between filter screen and the tube wall;
Fig. 3 is the cutaway view that obtains along the line A-A among Fig. 2;
Fig. 4 is the front view according to filter of the present invention, wherein fixes through spot welding between filter screen and the tube wall;
Fig. 5 is the cutaway view that obtains along the line B-B among Fig. 4.
The specific embodiment
The present invention will be described for the embodiment that following reference is used for oil return is filtered, and this embodiment does not limit purposes of the present invention.
Fig. 2 and Fig. 3 show filter of the present invention, and it comprises filter screen 1 and pipe 2.As shown in Figure 2, filter screen is circular and has elasticity, and pipe 2 is provided with spill port 21, and filter screen 1 is arranged on the tube wall of pipe 2 with said spill port 21 with one heart.Filter screen 1 has circular central lug boss 11, ring edge 13 and the annular groove 12 between said central boss 11 and ring edge 13.When the bottom of annular groove 12 abuts on pipe 2 the tube wall, be spaced a distance between ring edge 13 and the tube wall, as shown in Figure 3.
Like Fig. 4 and shown in Figure 5; Ring edge 13 reclines with tube wall through elastic deformation; And be fixed on the tube wall through spot welding, thereby make mutual extrusion between bottom and the tube wall of annular groove 12 and play sealing function, prevent that impurity from passing through to get between filter screen 1 and the tube wall spill port 21.Spill port 21 cresteds in the central boss 11 of filter screen, thereby filter through filter screen 1 before getting into spill port 21 from managing 2 outside in oil return.And form a space between lug boss 11 and the spill port 21, help oil return and flow into spill port 21 smoothly.
As shown in Figure 4; Also can fix between the bottom of the annular groove 12 of filter screen 1 and the tube wall through spot welding; And the ring edge 13 of the bottom of the annular groove 12 of filter screen 1 and the solder joint between the tube wall 22 and filter screen 1 and the solder joint 23 between the tube wall stagger in a circumferential direction each other; With further enhancing sealing effectiveness, improve reliability.
Though preceding text have been explained the present invention with reference to oil-returning filtering device, should be understood that the present invention also can be used for other fluid is filtered.Those skilled in the art can make various modifications and not depart from the scope of the present invention technical scheme of the present invention.
Claims (3)
1. filter; It comprises filter screen and pipe, and said filter screen is circular and has elasticity that said pipe is provided with the hole; Said filter screen and said hole are installed on the tube wall of said pipe with one heart; It is characterized in that said filter screen has circular central lug boss, ring edge and the annular groove between said central boss and ring edge, the bottom of said annular groove abuts on the tube wall of said pipe; Be spaced a distance between said ring edge and the tube wall; Said ring edge reclines with said tube wall through elastic deformation, and is fixed on the said tube wall through spot welding, thereby makes mutual extrusion between bottom and the said tube wall of said annular groove and play sealing function; With with said maskaperture mask in the central boss of said filter screen, thereby fluid from said pipe outside get into said hole before through said strainer filtering.
2. filter according to claim 1 is characterized in that, also fixes through spot welding between the bottom of the annular groove of said filter screen and the said tube wall.
3. filter according to claim 2; It is characterized in that; Solder joint between solder joint between the bottom of the annular groove of said filter screen and the said tube wall and the ring edge of said filter screen and the said tube wall staggers in a circumferential direction each other, with further enhancing sealing effectiveness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100380734A CN101590338B (en) | 2008-05-26 | 2008-05-26 | Filtering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100380734A CN101590338B (en) | 2008-05-26 | 2008-05-26 | Filtering device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101590338A CN101590338A (en) | 2009-12-02 |
| CN101590338B true CN101590338B (en) | 2012-11-21 |
Family
ID=41405336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100380734A Active CN101590338B (en) | 2008-05-26 | 2008-05-26 | Filtering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101590338B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2529826A1 (en) * | 2011-05-31 | 2012-12-05 | Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO | Membrane filtration system comprising a deformable side wall |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1771928A (en) * | 1927-05-02 | 1930-07-29 | Jung Hans | Filter press |
| CN201023121Y (en) * | 2007-04-24 | 2008-02-20 | 湖北大地钎具有限公司 | Three-cylinder hydraulic forging machine |
| CN201040207Y (en) * | 2007-05-17 | 2008-03-26 | 李立功 | Wastewater filter |
-
2008
- 2008-05-26 CN CN2008100380734A patent/CN101590338B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1771928A (en) * | 1927-05-02 | 1930-07-29 | Jung Hans | Filter press |
| CN201023121Y (en) * | 2007-04-24 | 2008-02-20 | 湖北大地钎具有限公司 | Three-cylinder hydraulic forging machine |
| CN201040207Y (en) * | 2007-05-17 | 2008-03-26 | 李立功 | Wastewater filter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101590338A (en) | 2009-12-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 201206 No. 1051, Yun Qiao Road, Jinqiao Export processing area, Pudong New Area, Shanghai Patentee after: Shanghai Haili Electrical Appliance Co. Ltd. Address before: No. 1051, Yun Qiao Road, Jinqiao, Pudong, Shanghai Patentee before: Rili Electric Appliance Co., Ltd., Shanghai |