CN210049977U - High leakproofness's filter and fuel pump assembly - Google Patents
High leakproofness's filter and fuel pump assembly Download PDFInfo
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- CN210049977U CN210049977U CN201920401515.0U CN201920401515U CN210049977U CN 210049977 U CN210049977 U CN 210049977U CN 201920401515 U CN201920401515 U CN 201920401515U CN 210049977 U CN210049977 U CN 210049977U
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Abstract
A high-sealing filter comprises an inner sleeve assembly, a base, an upper end cover, a lower end cover and a filter element, wherein the inner sleeve assembly comprises an end plate and a sleeve vertically connected with one side of the end plate; an oil outlet column is arranged in the middle of the end plate, an oil through groove is arranged between the oil outlet column and the edge of the end plate, and the oil through groove is communicated with the second gap; an oil outlet and an adjusting valve are arranged on the end plate, a first opening communicated with the oil outlet and a second opening communicated with the adjusting valve are formed in the joint of the end plate and the sleeve, and the first opening and the second opening are communicated with the first gap. Thus, the sealing performance is improved. The utility model also provides a fuel pump assembly.
Description
Technical Field
The utility model relates to a vehicle oil pump field, especially a filter and fuel pump assembly of high leakproofness.
Background
The vehicle oil pump is a device for pumping gasoline in a tank to an injector. The vehicle oil pump is provided with a shell, a pump body positioned in the shell and a filter positioned between the shell and the pump body. The filter is used for filtering the gasoline pumped out by the pump body. The sealing performance of the existing filter is difficult to guarantee, and particularly, gaps are generated at the abutting positions of adjacent parts, so that the sealing performance is poor.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a high-sealing filter with improved sealing performance and a fuel pump assembly having the high-sealing filter, so as to solve the above problems.
A high-sealing filter comprises an inner sleeve assembly, a base, an upper end cover, a lower end cover and a filter element, wherein the inner sleeve assembly comprises an end plate and a sleeve vertically connected with one side of the end plate; the middle parts of the upper end cover and the lower end cover are provided with openings, the upper end cover is positioned between the first end of the filter element and the end plate, and the sleeve penetrates through the opening in the middle part of the upper end cover; the lower end cover is positioned between the second end of the filter element and the base, and the sleeve penetrates through an opening in the middle of the lower end cover; the upper end cover is hermetically connected with the end plate, and the lower end cover is hermetically connected with the base; one end of the shell close to the end plate is provided with a connecting part, the connecting part is integrally connected with the upper end face of the end plate far away from the base, and one end of the shell close to the base is integrally connected with the circumferential edge of the base; an oil outlet column is arranged in the middle of the end plate, an oil through groove is arranged between the oil outlet column and the edge of the end plate, and the oil through groove is communicated with the second gap; an oil outlet and an adjusting valve are arranged on the end plate, a first opening communicated with the oil outlet and a second opening communicated with the adjusting valve are formed in the joint of the end plate and the sleeve, and the first opening and the second opening are communicated with the first gap.
Further, still include the upper seal circle, the one side of upper end cover towards the end plate is protruding to be provided with first bulge loop, forms first step between the opening edge of upper end cover and the first bulge loop, and the upper seal circle is located first step department.
Further, the thickness of the upper sealing ring along the axial direction is larger than the distance between the first step and the end plate.
Further, still include the lower seal circle, the lower extreme lid is provided with the second bulge loop towards the protruding one side of base, forms the second step between the opening edge of lower extreme lid and the second bulge loop, and the lower seal circle is located second step department.
Further, the thickness of the lower sealing ring along the axial direction is larger than the distance between the second step and the base.
Further, the circumferential edge of one side, away from the base, of the end plate of the inner sleeve component is provided with a flange in a protruding mode, and the connecting portion is integrally connected with the tail end of the flange.
Further, go out the oil column and lead to the terminal parallel and level of the upper end that the base was kept away from to the oil groove and flange, the end-to-end connection of connecting portion has the extension, the extension cover go out the oil column and lead to the oil groove and with go out the oil column and lead to the upper end homogeneous body coupling of oil groove.
Further, be provided with the oil return injection pipe with the governing valve intercommunication on the telescopic inside wall, the governing valve one end is kept away from to the oil return injection pipe and a filter screen subassembly is connected.
Furthermore, the filter screen assembly comprises a connecting pipe and a filter screen sleeved on the connecting pipe, and a through hole is formed in the part, located on the filter screen, of the connecting pipe.
A fuel pump assembly comprises a shell, a pump body positioned in the shell and a filter with high sealing performance arranged between the shell and the pump body.
Compared with the prior art, the high-tightness filter comprises an inner sleeve assembly, a base, an upper end cover, a lower end cover and a filter element, wherein the inner sleeve assembly comprises an end plate and a sleeve vertically connected with one side of the end plate; the middle parts of the upper end cover and the lower end cover are provided with openings, the upper end cover is positioned between the first end of the filter element and the end plate, and the sleeve penetrates through the opening in the middle part of the upper end cover; the lower end cover is positioned between the second end of the filter element and the base, and the sleeve penetrates through an opening in the middle of the lower end cover; the upper end cover is hermetically connected with the end plate, and the lower end cover is hermetically connected with the base; one end of the shell close to the end plate is provided with a connecting part, the connecting part is integrally connected with the upper end face of the end plate far away from the base, and one end of the shell close to the base is integrally connected with the circumferential edge of the base; an oil outlet column is arranged in the middle of the end plate, an oil through groove is arranged between the oil outlet column and the edge of the end plate, and the oil through groove is communicated with the second gap; an oil outlet and an adjusting valve are arranged on the end plate, a first opening communicated with the oil outlet and a second opening communicated with the adjusting valve are formed in the joint of the end plate and the sleeve, and the first opening and the second opening are communicated with the first gap. So make and form a holistic closed region between endotheca subassembly, casing and the base, upper end cover, lower extreme lid and filter core are separated closed region for inside and outside two parts, and during petrol entered into the second clearance through logical oil groove to see through the filter core, get into first clearance, later flow through first opening and oil-out, improved sealing performance.
Drawings
Embodiments of the present invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a schematic cross-sectional view of a fuel pump assembly provided by the present invention.
Fig. 2 is an exploded schematic view of the filter with high sealing performance according to the present invention.
Fig. 3 is an exploded view of another perspective of the high-sealability filter according to the present invention.
Fig. 4 is a partial perspective view of the filter with high sealing performance according to the present invention.
Fig. 5 is a perspective view of the inner sleeve assembly of fig. 4.
Fig. 6 is a perspective view of the inner sleeve assembly of fig. 4 from another viewing angle.
Fig. 7 is a schematic view of a screen assembly.
Fig. 8 is a schematic perspective view of a fuel pump assembly according to the present invention.
Detailed Description
The following describes in further detail specific embodiments of the present invention based on the drawings. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.
Referring to fig. 1 and 8, the fuel pump assembly of the present invention includes a housing 10, a pump body 20 located in the housing 10, a filter 30 with high sealing performance disposed between the housing 10 and the pump body 20, an upper cover 40 disposed on the top of the housing 10, and a float 50 rotatably connected to the outer sidewall of the housing 10.
Referring to fig. 1 to 4, the filter 30 with high sealing performance of the present invention includes an inner housing assembly 31, a base 32, an upper end cap 33, a lower end cap 34, a filter element 35, an upper sealing ring 361 and a lower sealing ring 362.
The inner sleeve assembly 31 includes a circular end plate 311 and a cylindrical sleeve 312 vertically connected to one side of the end plate 311, and the sleeve 312 is sleeved outside the pump body 20.
The filter element 35 is sleeved outside the sleeve 312, a first gap is formed between the filter element 35 and the sleeve 312, and the filter element 35 is cylindrical as a whole. A second gap is provided between the filter element 35 and the housing 10.
The upper end cover 33 and the lower end cover 34 are both circular rings with openings in the middle. The upper end cover 33 is positioned between the end surface of the first end of the filter element 35 and the end plate 311, and the sleeve 312 passes through the opening in the middle of the upper end cover 33; the lower end cap 34 is positioned between the end face of the second end of the filter element 35 and the base 32 and the sleeve 312 passes through an opening in the middle of the lower end cap 34.
A first convex ring 331 is protrudingly provided on a side of the upper end cover 33 facing the end plate 311, a first step 332 is formed between an opening edge of the upper end cover 33 and the first convex ring 331, and the upper sealing ring 361 is located at the first step 332, that is, the upper sealing ring 361 is located between the first convex ring 331 and the sleeve 312, and the upper sealing ring 361 is located between the end plate 311 and the upper end cover 33.
A second convex ring 341 is protrudingly provided on a side of the lower end cap 34 facing the base 32, a second step 342 is formed between an opening edge of the lower end cap 34 and the second convex ring 341, and a lower sealing ring 362 is located at the second step 342, that is, the lower sealing ring 362 is located between the second convex ring 341 and the sleeve 312, and the lower sealing ring 362 is located between the lower end cap 34 and the base 32.
Referring to fig. 1, a bent connection portion 11 is disposed at an end of the casing 10 close to the end plate 311, and a terminal of the connection portion 11 is integrally connected to an upper end surface of the end plate 311 far from the base 32, for example, the casing 10 and the end plate 311 are made of plastic, and the connection portion 11 of the casing 10 and the upper end surface of the end plate 311 are melted together by a hot plate welding process.
The thickness of the upper seal 361 in the axial direction is greater than the distance between the first step 332 and the end plate 311, so that the upper seal 361 is clamped by the first step 332 and the end plate 311 and is compressed and deformed, and the end plate 311 and the upper end cover 33 are sealed.
One end of the shell 10 close to the base 32 is integrally connected with the circumferential edge of the base 32, if the shell 10 and the base 32 are both made of plastic, the shell 10 and the base 32 are fused into a whole through a hot plate welding process.
The lower seal ring 362 has a thickness in the axial direction greater than the distance between the second step 342 and the base 32, so that the lower seal ring 362 is clamped and compressively deformed by the second step 342 and the base 32, thereby sealing the base 32 and the lower end cap 34.
Referring to fig. 5, a flange 3111 is protrusively formed on a circumferential edge of a side of the end plate 311 of the inner sleeve member 31 away from the base 32, and the connecting portion 11 is integrally connected to a distal end of the flange 3111.
The middle part, preferably the central position, of the end plate 311 of the inner sleeve assembly 31 is provided with an oil outlet column 313, the middle part of the oil outlet column 313 is provided with an opening, and the outlet of the pump body 20 is positioned in the opening of the oil outlet column 313. An oil through groove 3131 is connected between the oil outlet pillar 313 and the flange 3111 of the end plate 311, the oil through groove 3131 is communicated with the second gap, and the upper ends of the oil outlet pillar 313 and the oil through groove 3131, which are far away from the base 32, are flush with the tail end of the flange 3111.
Referring to fig. 1 again, the end of the connecting portion 11 is further connected to an extending portion 13, and the extending portion 13 covers the oil outlet pillar 313 and the oil through groove 3131 and is integrally connected to the upper end surfaces of the oil outlet pillar 313 and the oil through groove 3131.
The end plate 311 is provided with an oil outlet 314 and a regulating valve 315, the inner side wall of the sleeve 312 is provided with an oil return injection pipe 3151 communicated with the regulating valve 315, and one end of the oil return injection pipe 3151 far away from the regulating valve 315 faces the base 32.
The joint of the end plate 311 and the sleeve 312 is opened with a first opening 3141 communicated with the oil outlet 314 and a second opening 3152 communicated with the regulating valve 315. The first opening 3141 and the second opening 3152 are both in communication with the first gap.
Referring to fig. 7, the end of the return injection pipe 3151 away from the regulating valve 315 is connected to a strainer assembly 37. The filter screen assembly 37 includes a connecting tube 371 and a filter screen 372 sleeved on the connecting tube 371, wherein a through hole 373 is formed on a circumferential side wall of a portion of the connecting tube 371 located on the filter screen 372.
Referring to fig. 8, a plurality of supporting seats 13 are disposed on the outer side wall of the housing 10, and a supporting rod 14 is connected between the supporting seats 13 and the upper cover 40. Upper cover 40 is used for right the utility model provides a fuel pump assembly's top is protected against dust, is provided with the oil pipe 41 that communicates with oil-out 314 on the upper cover 40.
Compared with the prior art, the utility model discloses a high leakproofness's filter includes interior cover subassembly 31, base 32, upper end cover 33, lower end cover 34 and filter core 35, interior cover subassembly 31 includes end plate 311 and the sleeve 312 of being connected perpendicularly with one side of end plate 311, the outside of sleeve 312 is located to filter core 35 cover, and has first clearance between filter core 35 and the sleeve 312, has the second clearance between filter core 35 and the casing 10, end plate 311 is located the outside of the first end of filter core 35, base 32 is located the outside of the second end of filter core 35; the middle parts of the upper end cover 33 and the lower end cover 34 are provided with openings, the upper end cover 33 is positioned between the first end of the filter element 35 and the end plate 311, and the sleeve 312 passes through the opening in the middle part of the upper end cover 33; the lower end cap 34 is positioned between the second end of the filter element 35 and the base 32 and the sleeve 312 passes through an opening in the middle of the lower end cap 34; the upper end cover 33 is hermetically connected with the end plate 311, and the lower end cover 34 is hermetically connected with the base 32; a connecting part 11 is arranged at one end of the shell 10 close to the end plate 311, the connecting part 11 is integrally connected with the upper end face of the end plate 311 far away from the base 32, and one end of the shell 10 close to the base 32 is integrally connected with the circumferential edge of the base 32; an oil outlet column 313 is arranged in the middle of the end plate 311, an oil through groove 3131 is arranged between the oil outlet column 313 and the edge of the end plate 311, and the oil through groove 3131 is communicated with the second gap; the end plate 311 is provided with an oil outlet 314 and a regulating valve 315, a first opening 3141 communicated with the oil outlet 314 and a second opening 3152 communicated with the regulating valve 315 are arranged at the connecting position of the end plate 311 and the sleeve 312, and the first opening 3141 and the second opening 3152 are both communicated with the first gap. Therefore, an integral closed area is formed among the inner sleeve assembly 31, the shell 10 and the base 32, the upper end cover 33, the lower end cover 34 and the filter element 35 divide the closed area into an inner part and an outer part, gasoline enters the second gap through the oil through groove 3131, penetrates through the filter element 35, enters the first gap, and then flows out through the first opening 3141 and the oil outlet 314, and the sealing performance is improved.
The above description is only for the preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention, and any modification, equivalent replacement or improvement within the spirit of the present invention is encompassed by the claims of the present invention.
Claims (10)
1. The utility model provides a high leakproofness's filter, sets up in a casing which characterized in that: the filter comprises an inner sleeve assembly, a base, an upper end cover, a lower end cover and a filter element, wherein the inner sleeve assembly comprises an end plate and a sleeve which is vertically connected with one side of the end plate, the filter element is sleeved outside the sleeve, a first gap is formed between the filter element and the sleeve, a second gap is formed between the filter element and a shell, the end plate is positioned outside the first end of the filter element, and the base is positioned outside the second end of the filter element; the middle parts of the upper end cover and the lower end cover are provided with openings, the upper end cover is positioned between the first end of the filter element and the end plate, and the sleeve penetrates through the opening in the middle part of the upper end cover; the lower end cover is positioned between the second end of the filter element and the base, and the sleeve penetrates through an opening in the middle of the lower end cover; the upper end cover is hermetically connected with the end plate, and the lower end cover is hermetically connected with the base; one end of the shell close to the end plate is provided with a connecting part, the connecting part is integrally connected with the upper end face of the end plate far away from the base, and one end of the shell close to the base is integrally connected with the circumferential edge of the base; an oil outlet column is arranged in the middle of the end plate, an oil through groove is arranged between the oil outlet column and the edge of the end plate, and the oil through groove is communicated with the second gap; an oil outlet and an adjusting valve are arranged on the end plate, a first opening communicated with the oil outlet and a second opening communicated with the adjusting valve are formed in the joint of the end plate and the sleeve, and the first opening and the second opening are communicated with the first gap.
2. The high-sealability filter of claim 1 wherein: still include the upper seal circle, the one side of upper end cover towards the end plate is protruding to be provided with first bulge loop, forms first step between the opening edge of upper end cover and the first bulge loop, and the upper seal circle is located first step department.
3. The high-sealability filter of claim 2 wherein: the thickness of the upper sealing ring along the axial direction is larger than the distance between the first step and the end plate.
4. The high-sealability filter of claim 1 wherein: the lower end cover is provided with a second convex ring in a protruding mode towards one side of the base, a second step is formed between the edge of the opening of the lower end cover and the second convex ring, and the lower sealing ring is located at the second step.
5. The high-sealability filter of claim 4 wherein: the thickness of the lower sealing ring along the axial direction is larger than the distance between the second step and the base.
6. The high-sealability filter of claim 1 wherein: the periphery edge of one side of the end plate of the inner sleeve component, which is far away from the base, is convexly provided with a flange, and the connecting part is integrally connected with the tail end of the flange.
7. The high-sealability filter of claim 6 wherein: go out the oil column and lead to the end parallel and level of the upper end that the oil groove kept away from the base and flange, the end-to-end connection of connecting portion has the extension, and the extension covers out the oil column and leads to the oil groove and with the upper end homogeneous body coupling who goes out the oil column and lead to the oil groove.
8. The high-sealability filter of claim 1 wherein: be provided with the oil return injection pipe with the governing valve intercommunication on telescopic inside wall, the governing valve one end is kept away from to the oil return injection pipe is connected with a filter screen subassembly.
9. The high-sealability filter of claim 8 wherein: the filter screen assembly comprises a connecting pipe and a filter screen sleeved on the connecting pipe, and a through hole is formed in the part, located on the filter screen, of the connecting pipe.
10. A fuel pump assembly, characterized in that: the high-tightness filter comprises a shell, a pump body positioned in the shell and the high-tightness filter as claimed in any one of claims 1 to 9 arranged between the shell and the pump body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920401515.0U CN210049977U (en) | 2019-03-27 | 2019-03-27 | High leakproofness's filter and fuel pump assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920401515.0U CN210049977U (en) | 2019-03-27 | 2019-03-27 | High leakproofness's filter and fuel pump assembly |
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| Publication Number | Publication Date |
|---|---|
| CN210049977U true CN210049977U (en) | 2020-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920401515.0U Active CN210049977U (en) | 2019-03-27 | 2019-03-27 | High leakproofness's filter and fuel pump assembly |
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| Country | Link |
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| CN (1) | CN210049977U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736985A (en) * | 2019-03-27 | 2019-05-10 | 众恒汽车部件有限公司 | The filter and fuel oil pump assembly of high leakproofness |
-
2019
- 2019-03-27 CN CN201920401515.0U patent/CN210049977U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736985A (en) * | 2019-03-27 | 2019-05-10 | 众恒汽车部件有限公司 | The filter and fuel oil pump assembly of high leakproofness |
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