CN216044120U - Filter core block grey structure and filter core - Google Patents
Filter core block grey structure and filter core Download PDFInfo
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- CN216044120U CN216044120U CN202121372772.XU CN202121372772U CN216044120U CN 216044120 U CN216044120 U CN 216044120U CN 202121372772 U CN202121372772 U CN 202121372772U CN 216044120 U CN216044120 U CN 216044120U
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Abstract
The utility model discloses an ash blocking structure of a filter element and the filter element. According to the utility model, the ash blocking ring structure is arranged on the periphery of the bottom of the filter layer, in the working process of the filter element, the ash blocking ring structure blocks pollutants such as particle impurities and oil sludge deposited and accumulated, the ash blocking ring structure is in interference fit with the shell during maintenance of the filter element, all pollutants can be collected in the ash storage cavity between the ash blocking ring and the filter layer, when the filter element is pulled out, the ash blocking ring can trap the pollutants in the ash blocking ring and is taken out of the shell along with the filter element, the pollutants cannot slide down, the pollutants are prevented from sliding down to the clean side of the filter, and the performance of an engine fuel system is ensured.
Description
Technical Field
The utility model relates to the technical field of fuel oil filtration, in particular to a filter element and a dust blocking structure thereof.
Background
The fuel filter is arranged in an engine fuel supply system and is used for filtering impurities, water and other pollutants in fuel and inputting the filtered fuel into the fuel delivery pump and the fuel injector, so that the problems of excessive wear or blockage of important parts such as the fuel delivery pump and the fuel injector are avoided, and the normal work of the engine is ensured.
After the existing fuel filter works for a long time, a considerable amount of pollutants such as particle impurities, viscous oil sludge and the like can be accumulated at the bottom of the outer side of the filter element; when the fuel filter is maintained, the filter element is pulled out from the top, part of pollutants accumulated at the bottom of the filter element can slide into the clean side of the fuel filter to pollute the clean side, and when the filter element is continuously used after maintenance, the pollutants can flow into the next stage along with fuel oil, so that the pollution and the abrasion are caused to a fuel system of an engine.
SUMMERY OF THE UTILITY MODEL
The applicant provides an ash blocking structure of a filter element with a reasonable structure and a filter element aiming at the defects of the existing filter element, and the ash blocking structure is arranged on the lower end cover of the filter element to block pollutants and prevent the pollutants from entering the clean side of a fuel filter.
The technical scheme adopted by the utility model is as follows:
a lower end cover is arranged at the lower end of a filter layer, an ash blocking ring structure is arranged on the periphery of the bottom of the filter layer, and the ash blocking ring structure is in interference fit with a shell after the filter element is inserted into the shell of a filter; the ash blocking ring structure is a cone-shaped cylinder structure, and an ash storage cavity is formed between the inner peripheral surface of the cone-shaped cylinder structure and the outer peripheral surface of the filter layer; or the ash blocking ring structure is sponge, and the outer diameter of the sponge is larger than the inner diameter of the filter shell.
As a further improvement of the above technical solution:
the cone cylinder structure comprises a lower cone cylinder part and an upper cone cylinder part which are sequentially connected, the cylinder diameters of the lower cone cylinder part and the upper cone cylinder part are both large at the top and small at the bottom, the large-diameter end of the lower cone cylinder part is connected with the small-diameter end of the upper cone cylinder part, and the cylinder diameter of the large-diameter end of the upper cone cylinder part is larger than the inner diameter of the filter shell; the conicity of the lower cone cylinder part is smaller than that of the upper cone cylinder part.
The lower side of the cone structure is provided with a straight cylinder part, the lower end part of the straight cylinder part is connected with the flanging of the lower end cover, the upper end part of the straight cylinder part is connected with the small-diameter end of the cone structure, and the cylinder diameter of the large-diameter end of the cone structure is larger than the inner diameter of the filter shell.
The cone structure is integrally formed on the lower end cover.
The cone structure is inserted between the flanging of the lower end cover and the filtering layer.
The lower side of the cone structure is provided with an insertion part, an outward turning step is arranged between the insertion part and the cone structure, and the bottom surface of the step is abutted against the top surface of the flanging of the lower end cover.
The longitudinal section of the sponge is rectangular, trapezoidal, U-shaped, triangular or rhombic.
A filter element adopts the ash blocking structure, a filter layer is sleeved on the periphery of a central tube, a water repellent net tube is inserted in a central channel of the central tube, an upper end cover is arranged at the upper end of the filter layer, and a central through hole of the lower end cover is communicated with the central channel of the central tube.
The utility model has the following beneficial effects:
according to the utility model, the ash blocking ring structure is arranged on the periphery of the bottom of the filter layer, in the working process of the filter element, the ash blocking ring structure blocks pollutants such as particle impurities and oil sludge deposited and accumulated, the ash blocking ring structure is in interference fit with the shell during maintenance of the filter element, all pollutants can be collected in the ash storage cavity between the ash blocking ring and the filter layer, when the filter element is pulled out, the ash blocking ring can trap the pollutants in the ash blocking ring and is taken out of the shell along with the filter element, the pollutants cannot slide down, the pollutants are prevented from sliding down to the clean side of the filter, and the performance of an engine fuel system is ensured.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of the second embodiment.
Fig. 3 is a schematic structural diagram of the third embodiment.
Fig. 4 is a schematic structural diagram of a fourth embodiment.
Fig. 5 is a schematic structural diagram of the fifth embodiment.
Fig. 6 is a schematic structural diagram of a sixth embodiment.
In the figure: 1. a filtering layer; 2. a central tube; 3. a water repellent network tube; 4. an upper end cover; 5. a lower end cover; 51. flanging; 52. a first lower cone portion; 53. a first upper cone portion; 54. a straight tube portion; 6. a dust storage cavity; 7. a dust blocking cylinder; 71. an insertion portion; 72. a second lower cone portion; 73. a second upper cone portion; 74. a step; 8. a sponge.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
The first embodiment is as follows:
as shown in fig. 1, a filter layer 1 of the present invention is sleeved on the periphery of a central tube 2, a water repellent mesh tube 3 is inserted into a central channel of the central tube 2, an upper end cap 4 is fixedly bonded to an upper end portion of the filter layer 1, a lower end cap 5 is fixedly bonded to a lower end portion of the filter layer 1, and a central through hole of the lower end cap 5 is communicated with the central channel of the central tube 2.
As shown in fig. 1, the outer edge of the lower end cap 5 has a flange 51, the flange 51 wraps the bottom outer periphery of the filter layer 1, and a gap is formed between the inner peripheral surface of the flange 51 and the outer peripheral surface of the filter layer 1. The top end of the flanging 51 continuously extends upwards along the axial direction to form a first lower cone cylinder part 52 and a first upper cone cylinder part 53 which are sequentially connected, and the first lower cone cylinder part 52 and the first upper cone cylinder part 53 are integrally formed on the lower end cover 5; the ash storage cavity 6 is formed between the inner peripheral surfaces of the first lower tapered tubular part 52 and the first upper tapered tubular part 53 and the outer peripheral surface of the filter layer 1. The cylinder diameters of the first lower cone cylinder part 52 and the first upper cone cylinder part 53 are both big at the top and small at the bottom, the taper of the first lower cone cylinder part 52 is smaller than that of the first upper cone cylinder part 53, the small-diameter end of the first lower cone cylinder part 52 is connected with the flanging 51, the large-diameter end of the first lower cone cylinder part 52 is connected with the small-diameter end of the first upper cone cylinder part 53, the cylinder diameter of the large-diameter end of the first upper cone cylinder part 53 is larger than the inner diameter of the filter shell, after the filter element is inserted into the shell, the large-diameter end of the first upper cone cylinder part 53 is in interference fit with the shell, the first lower cone cylinder part 52 and the first upper cone cylinder part 53 form a dust blocking ring structure, in the working process of the filter element, the dust blocking ring structure blocks deposited and accumulated particle impurities and oily sludge and other internal cone pollutants, the pollutants slide down along the inner cone surfaces of the first lower cone cylinder part 52 and the first upper cone cylinder part 53 and deposit to the bottom of the dust storage cavity 6, and in the interference fit with the shell, all pollutants can be collected in the ash storage cavity 6 between the ash blocking ring and the filter layer 1, when the filter element is pulled out, the ash blocking ring can pocket the pollutants inside the ash blocking ring, the pollutants can not slide down along with the filter element taken out of the shell, the pollutants are prevented from sliding down to the clean side of the filter, and the performance of an engine fuel system is ensured.
Example two:
as shown in fig. 2, the present embodiment is different from the first embodiment in that the top end of the flange 51 of the lower end cap 5 continues to extend upward along the axial direction to form a straight cylinder portion 54 and a first upper tapered cylinder portion 53 which are connected in sequence, and the straight cylinder portion 54 and the first upper tapered cylinder portion 53 are integrally formed on the lower end cap 5; the ash storage cavity 6 is formed between the inner peripheral surfaces of the straight tube part 54 and the first upper tapered tube part 53 and the outer peripheral surface of the filter layer 1, and the straight tube part 54 is arranged below the first upper tapered tube part 53, so that the ash storage cavity 6 can obtain a larger ash storage space and a larger ash storage capacity. The lower end of the straight cylinder part 54 is connected with the flange 51, the upper end of the straight cylinder part 54 is connected with the small diameter end of the first upper tapered cylinder part 53, and the cylinder diameter of the large diameter end of the first upper tapered cylinder part 53 is larger than the inner diameter of the filter shell; the straight cylinder part 54 and the first upper cone part 53 form an ash blocking ring structure, in the working process of the filter element, pollutants such as deposited and accumulated particle impurities, oil sludge and the like are blocked by the ash blocking ring structure, and the blocked pollutants are deposited at the bottom of the ash storage cavity 6.
Example three:
as shown in fig. 3, unlike the first and second embodiments, in this embodiment, a dust blocking cylinder 7 is inserted between the flange 51 of the lower end cover 5 and the filter layer 1, and the dust blocking cylinder 7 forms a dust blocking ring structure.
The ash blocking cylinder 7 is provided with an insertion part 71, a second lower cone-shaped cylinder part 72 and a second upper cone-shaped cylinder part 73 which are sequentially connected from bottom to top, the insertion part 71 is inserted into a gap between the flange 51 and the filtering layer 1, and an ash storage cavity 6 is formed between the inner circumferential surfaces of the second lower cone-shaped cylinder part 72 and the second upper cone-shaped cylinder part 73 and the outer circumferential surface of the filtering layer 1. The diameters of the second lower cone cylinder part 72 and the second upper cone cylinder part 73 are both big at the top and small at the bottom, the taper of the second lower cone cylinder part 72 is smaller than that of the second upper cone cylinder part 73, the big diameter end of the second lower cone cylinder part 72 is connected with the small diameter end of the second upper cone cylinder part 73, the diameter of the big diameter end of the second upper cone cylinder part 73 is larger than the inner diameter of the filter shell, and after the filter element is inserted into the shell, the big diameter end of the second upper cone cylinder part 73 is in interference fit with the shell.
Example four:
as shown in fig. 4, in this embodiment, on the basis of the third embodiment, a step 74 that is turned outward in the radial direction is provided between the insertion portion 71 of the dust blocking cylinder 7 and the second lower tapered cylinder portion 72, and the bottom surface of the step 74 abuts against the top surface of the flange 51 of the lower end cover 5; the second lower tapered cylinder part 72 is connected with the insertion part 71 through the step 74 which is turned outwards, and the distance between the inner circumferential surface of the second lower tapered cylinder part 72 and the outer circumferential surface of the filter layer 1 is increased, so that the ash storage cavity 6 obtains a larger ash storage space and a larger ash storage capacity.
Example five:
as shown in fig. 5, unlike the above-mentioned embodiment, a ring of sponge 8 is sleeved on the upper side of the flange 51 of the lower end cover 5, and the sponge 8 forms an ash blocking ring structure.
This sponge 8's longitudinal section is the rectangle, sponge 8's inner peripheral surface and filtering layer 1's outer peripheral face phase-match, sponge 8's external diameter is greater than the internal diameter of filter shell, back in the filter core cartridge to the shell, be interference fit between 8 outer peripheral faces of sponge and the shell inner peripheral surface, in filter core working process, sponge 8 adsorbs the pollutant precipitation in sponge 8 is inside and the ash storage chamber 6 of interception between sponge 8 and filtering layer 1, because sponge 8 is interference fit with the shell, during the filter core maintenance, toward draw the filter core outward, sponge 8 outer peripheral face pastes tightly global in the shell, the pollutant has all been adsorbed in sponge 8 and has been taken out in ash storage chamber 6 together, the clean side of pollutant landing to filter has been avoided.
Example six:
as shown in fig. 6, the difference between this embodiment and the fifth embodiment is that the longitudinal section of the sponge 8 is trapezoidal, the inner circumference of the upper part of the sponge 8 has an inner conical surface, the ash storage cavity 6 is formed between the inner conical surface of the upper part of the sponge 8 and the outer circumferential surface of the filter layer 1, the sponge 8 can not only adsorb and contain pollutants, but also the conical surface can assist in sliding and depositing the pollutants into the ash storage cavity 6, and the ash blocking effect is better.
Example seven:
different from the fifth embodiment and the sixth embodiment, the longitudinal section of the sponge 8 can be in a U shape, a triangle shape or a rhombus shape, as long as the peripheral surface of the sponge is in interference fit with the shell, and the purpose of blocking ash can be achieved.
The foregoing description is illustrative of the present invention and is not to be construed as limiting thereof, as the utility model may be modified in any manner without departing from the spirit thereof.
Claims (8)
1. The utility model provides a filter core block grey structure, tip is equipped with lower end cover (5) under filtering layer (1), its characterized in that: the periphery of the bottom of the filter layer (1) is provided with an ash blocking ring structure, and after the filter element is inserted into the filter shell, the ash blocking ring structure is in interference fit with the shell; the ash blocking ring structure is a cone-shaped structure, and an ash storage cavity (6) is formed between the inner peripheral surface of the cone-shaped structure and the outer peripheral surface of the filter layer (1); the ash blocking ring structure is a sponge (8), and the outer diameter of the sponge (8) is larger than the inner diameter of the filter shell.
2. A dust retaining structure for a filter element as defined in claim 1, wherein: the cone cylinder structure comprises a lower cone cylinder part and an upper cone cylinder part which are sequentially connected, the cylinder diameters of the lower cone cylinder part and the upper cone cylinder part are both large at the top and small at the bottom, the large-diameter end of the lower cone cylinder part is connected with the small-diameter end of the upper cone cylinder part, and the cylinder diameter of the large-diameter end of the upper cone cylinder part is larger than the inner diameter of the filter shell; the conicity of the lower cone cylinder part is smaller than that of the upper cone cylinder part.
3. A dust retaining structure for a filter element as defined in claim 1, wherein: the lower side of the cone-shaped cylinder structure is provided with a straight cylinder part (54), the lower end part of the straight cylinder part (54) is connected with a flanging (51) of the lower end cover (5), the upper end part of the straight cylinder part (54) is connected with the small-diameter end of the cone-shaped cylinder structure, and the cylinder diameter of the large-diameter end of the cone-shaped cylinder structure is larger than the inner diameter of the filter shell.
4. A dust retaining structure for a filter element as defined in claim 1, wherein: the cone structure is integrally formed on the lower end cover (5).
5. A dust retaining structure for a filter element as defined in claim 1, wherein: the cone structure is inserted between the flanging (51) of the lower end cover (5) and the filtering layer (1).
6. A dust intercepting structure of a filter cartridge according to claim 5, wherein: the lower side of the cone-shaped cylinder structure is provided with an insertion part (71), an outward turning step (74) is arranged between the insertion part (71) and the cone-shaped cylinder structure, and the bottom surface of the step (74) is abutted against the top surface of a flanging (51) of the lower end cover (5).
7. A dust retaining structure for a filter element as defined in claim 1, wherein: the longitudinal section of the sponge (8) is rectangular, trapezoidal, U-shaped, triangular or rhombic.
8. A filter cartridge, characterized in that: the ash blocking structure according to any one of claims 1 to 7 is adopted, the filter layer (1) is sleeved on the periphery of the central pipe (2), the water repellent net pipe (3) is inserted into the central channel of the central pipe (2), the upper end part of the filter layer (1) is provided with an upper end cover (4), and the central through hole of the lower end cover (5) is communicated with the central channel of the central pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121372772.XU CN216044120U (en) | 2021-06-21 | 2021-06-21 | Filter core block grey structure and filter core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121372772.XU CN216044120U (en) | 2021-06-21 | 2021-06-21 | Filter core block grey structure and filter core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216044120U true CN216044120U (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121372772.XU Active CN216044120U (en) | 2021-06-21 | 2021-06-21 | Filter core block grey structure and filter core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216044120U (en) |
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2021
- 2021-06-21 CN CN202121372772.XU patent/CN216044120U/en active Active
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