CN202280552U - Rotary-load-type fuel filter structure - Google Patents
Rotary-load-type fuel filter structure Download PDFInfo
- Publication number
- CN202280552U CN202280552U CN2011203141111U CN201120314111U CN202280552U CN 202280552 U CN202280552 U CN 202280552U CN 2011203141111 U CN2011203141111 U CN 2011203141111U CN 201120314111 U CN201120314111 U CN 201120314111U CN 202280552 U CN202280552 U CN 202280552U
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- China
- Prior art keywords
- central
- spiral shell
- bore
- end cap
- fixed plate
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- Expired - Fee Related
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Abstract
The utility model discloses a rotary-load-type fuel filter structure which comprises a shell, wherein the shell is internally provided with a support spring and a filter core assembly which is supported by the support spring, and the bottom of a central tube of the filter core assembly is provided with a by-pass valve base; the by-pass valve base is internally provided with a diaphragm, a gasket presses the diaphragm, the by-pass valve base is also internally provided with a by-pass valve spring, the lower end of the by-pass valve spring is connected with the gasket, the upper end of the by-pass valve spring props against the top tube port of the by-pass valve base; and a check valve piece is arranged in a center through hole of an upper end cover of the filter core assembly, and the top shell port of the shell is covered by a spiral plate assembly. The rotary-load-type fuel filter structure provided by the utility model is simple in structure, is easy to realize, and can be used for improving the filtering effect of a fuel filter and also prolonging the service life of the fuel filter.
Description
Technical field
The utility model relates to the filter cleaner field, is specially a kind of rotation fitting type fuel filter structure.
Background technique
Fuel filter is connected on the pipeline between fuel pump and the throttle valve body filler opening, and effect is deleterious particle and the moisture content in the filtering engine fuel gas system, with protection oil pump nozzle, cylinder sleeve, piston ring etc., reduces wear, and avoids stopping up.Fuel filter comprises shell, and the filter core that has filter paper to constitute in the shell, the fuel filter of existing technology tend to the phenomenon that occurs refluxing in use, cause the filtering effect to reduce.
The model utility content
The utility model purpose provides a kind of rotation fitting type fuel filter structure, causes the problem of filtering effect reduction to solve the existing technology fuel filter owing to reflux.
In order to achieve the above object, the technological scheme that the utility model adopted is:
Rotation fitting type fuel filter structure comprises it is characterized in that the shell of open-topped, bottom lock: be provided with the supported spring that the lower end is connected outer casing bottom in the said shell; And the filter core assembly that supports by supported spring, said filter core assembly comprises upper and lower end cap with central through bore and the center tube that connects upper and lower end cap, said lower end cap places the supported spring upper end; The lower end cap center is connected with the bypass valve seat of the tubulose that stretches in the center tube, is provided with the diaphragm that is blocked in bypass valve seat bottom tube mouth place in the said bypass valve seat, and diaphragm is provided with the pad of pushing down diaphragm; Also be provided with the case of by-pass valve that the lower end is connected the pad top in the bypass valve seat; Said case of by-pass valve upper end is replaced at bypass valve seat head tube mouth place limited, the edge downwarping of said upper end cap, and said center tube is with many circle filter paper outward; And filter paper is spacing by upper end cap edge curved section; Have the non-return valve block of band central through bore to be installed in the central through bore of upper end cap, said non-return valve block outer side wall is connected with acclivitous valve arm, and said cover top portion faucal place is covered with spiral shell plate assembly; Said spiral shell plate assembly is by constituting with spiral shell plate, the fixed plate of central through bore respectively; And the central through bore of fixed plate is a cone shape hole, and said spiral shell plate lower face has central boss, and said fixed plate upper plate surface forms circular groove; Be provided with seal ring in the circular groove; The corresponding circular groove of fixed plate lower face position is provided with annular bead, and the annular bead of said fixed plate lower face is welded on the upper plate surface of spiral shell plate, and the central boss of said spiral shell plate is installed in the central through bore of non-return valve block; The valve arm arm end of said non-return valve block is supported on the spiral shell plate lower face, and the central through bore of fixed plate, spiral shell plate, non-return valve block communicates with each other.
The utility model is simple in structure, is easy to realize.Be provided with the bypass valve seat that stretches in the center tube at the lower end cap center; Stopped up the bypass valve seat lower end mouth of pipe what the bypass valve seat was provided with by the spacing diaphragm of case of by-pass valve; In the upper end cap central through bore, be provided with the non-return valve block; The valve arm of non-return valve block supports the spiral shell plate, cooperates with the bypass valve seat through the non-return valve block, can prevent backflow effectively.The utility model has improved the filtering effect of fuel filter, the working life of also having improved fuel filter.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
As shown in Figure 1.Rotation fitting type fuel filter structure comprises the shell 1 of open-topped, bottom lock being provided with the supported spring 2 that the lower end is connected shell 1 bottom in the shell 1; And the filter core assembly that supports by supported spring 2, filter core assembly comprises upper and lower end cap 3,4 with central through bore and the center tube 5 that connects upper and lower end cap 3,4, lower end cap 4 places supported spring 2 upper ends; Lower end cap 4 centers are connected with the bypass valve seat 6 of the tubulose that stretches in the center tube 5, are provided with the diaphragm 7 that is blocked in mouth of pipe place, bypass valve seat 6 bottom in the bypass valve seat 6, and diaphragm 7 is provided with the pad 8 of pushing down diaphragm 7; Also be provided with the case of by-pass valve 9 that the lower end is connected pad 8 tops in the bypass valve seat 6; Case of by-pass valve 9 upper ends are replaced at mouth of pipe place, bypass valve seat 6 top limited, upper end cap 3 edge downwarpings, and center tube 5 outer being with are enclosed filter paper 10 more; And filter paper 10 is spacing by upper end cap 3 edge curved sections; Have the non-return valve block 11 of band central through bore to be installed in the central through bore of upper end cap 3, non-return valve block 11 outer side walls are connected with acclivitous valve arm 12, and faucal place, shell 1 top is covered with spiral shell plate assembly; Spiral shell plate assembly is by constituting with spiral shell plate 13, the fixed plate 14 of central through bore respectively; And the central through bore of fixed plate 14 is a cone shape hole, and spiral shell plate 13 lower faces have central boss 13-1, and fixed plate 14 upper plate surfaces form circular groove; Be provided with seal ring 15 in the circular groove; The corresponding circular groove of fixed plate 14 lower faces position is provided with annular bead 14-1, and the annular bead 14-1 of fixed plate 14 lower faces is welded on the upper plate surface of spiral shell plate 13, and the central boss 13-1 of spiral shell plate 13 is installed in the central through bore of non-return valve block 11; The valve arm 12 arm ends of non-return valve block 11 are supported on spiral shell plate 13 lower faces, and the central through bore of fixed plate 14, spiral shell plate 13, non-return valve block 11 communicates with each other.
Claims (1)
1. rotation fitting type fuel filter structure comprises it is characterized in that the shell of open-topped, bottom lock: be provided with the supported spring that the lower end is connected outer casing bottom in the said shell; And the filter core assembly that supports by supported spring, said filter core assembly comprises upper and lower end cap with central through bore and the center tube that connects upper and lower end cap, said lower end cap places the supported spring upper end; The lower end cap center is connected with the bypass valve seat of the tubulose that stretches in the center tube, is provided with the diaphragm that is blocked in bypass valve seat bottom tube mouth place in the said bypass valve seat, and diaphragm is provided with the pad of pushing down diaphragm; Also be provided with the case of by-pass valve that the lower end is connected the pad top in the bypass valve seat; Said case of by-pass valve upper end is replaced at bypass valve seat head tube mouth place limited, the edge downwarping of said upper end cap, and said center tube is with many circle filter paper outward; And filter paper is spacing by upper end cap edge curved section; Have the non-return valve block of band central through bore to be installed in the central through bore of upper end cap, said non-return valve block outer side wall is connected with acclivitous valve arm, and said cover top portion faucal place is covered with spiral shell plate assembly; Said spiral shell plate assembly is by constituting with spiral shell plate, the fixed plate of central through bore respectively; And the central through bore of fixed plate is a cone shape hole, and said spiral shell plate lower face has central boss, and said fixed plate upper plate surface forms circular groove; Be provided with seal ring in the circular groove; The corresponding circular groove of fixed plate lower face position is provided with annular bead, and the annular bead of said fixed plate lower face is welded on the upper plate surface of spiral shell plate, and the central boss of said spiral shell plate is installed in the central through bore of non-return valve block; The valve arm arm end of said non-return valve block is supported on the spiral shell plate lower face, and the central through bore of fixed plate, spiral shell plate, non-return valve block communicates with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203141111U CN202280552U (en) | 2011-08-25 | 2011-08-25 | Rotary-load-type fuel filter structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203141111U CN202280552U (en) | 2011-08-25 | 2011-08-25 | Rotary-load-type fuel filter structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202280552U true CN202280552U (en) | 2012-06-20 |
Family
ID=46226722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203141111U Expired - Fee Related CN202280552U (en) | 2011-08-25 | 2011-08-25 | Rotary-load-type fuel filter structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202280552U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653919A (en) * | 2018-12-28 | 2019-04-19 | 平原滤清器有限公司 | Non-return thermostat valve and the modularization environment protection-type fuel filter for using non-return thermostat valve |
-
2011
- 2011-08-25 CN CN2011203141111U patent/CN202280552U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109653919A (en) * | 2018-12-28 | 2019-04-19 | 平原滤清器有限公司 | Non-return thermostat valve and the modularization environment protection-type fuel filter for using non-return thermostat valve |
| CN109653919B (en) * | 2018-12-28 | 2024-01-19 | 平原滤清器有限公司 | Check temperature control valve and modularized environment-friendly fuel filter using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20120825 |