CN219549004U - Fuel filter capable of preventing filter element from being installed by mistake - Google Patents
Fuel filter capable of preventing filter element from being installed by mistake Download PDFInfo
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- CN219549004U CN219549004U CN202222984175.3U CN202222984175U CN219549004U CN 219549004 U CN219549004 U CN 219549004U CN 202222984175 U CN202222984175 U CN 202222984175U CN 219549004 U CN219549004 U CN 219549004U
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- filter element
- filter
- shell
- limiting
- fuel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The utility model discloses a fuel filter capable of preventing a filter element from being installed by mistake, belongs to the field of fuel filters, and solves the problems that an existing fuel filter has no error-proofing structure, and a user uses a low-quality filter element to cause the reduction of a filtering effect and the service life. The filter comprises a shell and a filter element, wherein a honeycomb duct is arranged in the shell, the filter element is sleeved on the honeycomb duct and forms a seal at the bottom between the honeycomb duct and the honeycomb duct, and an error-proofing structure which enables the filter element to be sleeved in place and form a seal is arranged between the filter element and the shell. The fuel filter with the error-proof filter element can guide a user to use the genuine filter element, and ensure the filtering effect and the service life of the filter.
Description
Technical Field
The utility model relates to a fuel filter, in particular to a fuel filter capable of preventing a filter element from being mistakenly installed.
Background
The fuel filter is an important component in a fuel engine system, and has the function of filtering out harmful particles and water in the engine fuel system so as to protect a fuel pump nozzle, a cylinder sleeve, a piston ring and the like, reduce abrasion and avoid blockage. The existing fuel filter generally comprises a shell and a filter element, wherein a flow guide pipe is arranged in the filter element, fuel enters between the shell and the filter element, enters the filter element after being filtered by the filter element, and is discharged to an engine for use through the flow guide pipe.
After the fuel filter is used for a long time, the filter element is blocked, damaged and the like, so the filter element needs to be replaced periodically. As the filter element and the fish-bone are mixed in the market, once a customer selects a filter element with poor quality and poor suitability for assembly and use, the problems of poor filtering effect, low service life and even engine failure of the filter are easily caused. Therefore, there is a need to develop a fuel filter with an anti-misassembly filter element.
Disclosure of Invention
The utility model aims to solve the technical problems of the prior art and aims to provide the fuel filter with the error-proof filter element, guide a user to use a genuine filter element and ensure the filtering effect and the service life of the filter.
The technical scheme of the utility model is as follows: the utility model provides a but fuel filter of mistake proofing dress filter core, includes shell and filter core, the shell inside be equipped with the honeycomb duct, the filter core cup joint on the honeycomb duct and form sealedly in the bottom between the two, filter core and shell between be equipped with and make the filter core cup joint the mistake proofing dress structure that forms sealedly in place.
As a further improvement, a sealing column is arranged at the lower part of the flow guide pipe, a sealing piece is arranged on the inner wall of the lower end cover of the filter element, and the sealing piece is sleeved on the sealing column to form sealing connection.
Further, the mistake proofing structure include the spacing step of setting at the shell inner wall, spacing step be located on the shell inner wall between seal post bottom surface and the top surface, the outer edge joint of the lower extreme cover of filter core is on spacing step.
Further, the limiting step is an annular step formed in the inner wall of the shell.
Further, the limit steps are a plurality of shoulders arranged on the inner wall of the shell at intervals, each shoulder is provided with a guide sliding groove in a penetrating way towards the top of the shell, the outer edge of the lower end cover of the filter element is provided with a plurality of guide sliding blocks, and each guide sliding block penetrates through the guide sliding groove in a one-to-one correspondence way and is clamped in the shoulder.
Further, an oil outlet pipe is arranged in the shell, and the bottom end of the flow guide pipe is communicated with the oil outlet pipe.
Further, the mistake proofing structure include protruding in the spacing boss of the lower extreme face of filter core under the end cover, spacing boss's protruding height is greater than the distance of sealing post bottom surface to the oil outlet pipe top surface, and is less than the sealing post top surface to the distance of oil outlet pipe top surface, spacing boss bottom surface laminating at the oil outlet pipe top surface.
Further, the limiting boss is a limiting ring arranged in an annular mode or a boss formed by a plurality of arc plates arranged at intervals.
Further, the mistake proofing structure still include the spacing step of setting at the shell inner wall, spacing step be located on the shell inner wall between seal post bottom surface and the top surface, the outer edge joint of the lower extreme cover of filter core is on spacing step.
Further, the mistake proofing structure include protruding in the spacing pipe of filter core's lower extreme cover top surface center, spacing pipe cover establish in the periphery of sealing post, just sealing member be located spacing intraductal wall, the laminating of filter core's lower extreme cover bottom surface is at the top surface of play oil pipe.
Advantageous effects
Compared with the prior art, the utility model has the following advantages:
according to the fuel filter with the error-proof filter element, the error-proof structure is arranged between the shell and the filter element, so that after the non-genuine filter element (the non-genuine filter element) is assembled, the filter element and the guide pipe cannot be sealed, the fuel filter cannot be used for filtering, and after the genuine filter element (the genuine filter element) is assembled, the bottom between the filter element and the guide pipe is just sealed, and the fuel filter can be used for filtering normally, so that a user is guided to use the genuine filter element, and the filtering effect and the service life of the filter are ensured.
Drawings
FIG. 1 is a schematic cross-sectional view of embodiment 1 of the present utility model;
FIG. 2 is an enlarged schematic view of the structure shown at A in FIG. 1;
FIG. 3 is an enlarged schematic view of the three-dimensional structure of the housing in the embodiment 1 of the present utility model;
FIG. 4 is an enlarged schematic view of the three-dimensional structure of the filter element in the embodiment 1 of the present utility model;
FIG. 5 is a schematic cross-sectional view of embodiment 2 of the present utility model;
FIG. 6 is an enlarged schematic view of the structure at B in FIG. 5;
fig. 7 is an enlarged schematic view of the three-dimensional structure of the housing in embodiment 2 of the present utility model;
FIG. 8 is an enlarged schematic view of the three-dimensional structure of the filter element in the embodiment 2 of the present utility model;
FIG. 9 is an enlarged schematic view showing a cross-sectional structure of embodiment 3 of the present utility model;
FIG. 10 is an enlarged schematic view of the structure at C in FIG. 9;
FIG. 11 is an enlarged schematic view showing the three-dimensional structure of the filter element in embodiment 3 of the present utility model;
FIG. 12 is an enlarged schematic view showing the cross-sectional structure of the lower end cap and the oil outlet pipe in accordance with embodiment 4 of the present utility model;
fig. 13 is an enlarged schematic view showing the structure of the lower end cap in embodiment 4 of the present utility model;
FIG. 14 is a schematic cross-sectional view of embodiment 5 of the present utility model;
fig. 15 is an enlarged schematic view of the structure at D in fig. 14.
Wherein: 1-shell, 2-filter core, 3-honeycomb duct, 4-seal post, 5-lower extreme cap, 6-sealing member, 7-spacing step, 8-direction spout, 9-direction slider, 10-play oil pipe, 11-spacing boss, 12-spacing pipe.
Detailed Description
The utility model will be further described with reference to specific embodiments in the drawings.
Referring to fig. 1, the fuel filter capable of preventing the filter element from being installed by mistake comprises a shell 1 and a filter element 2, wherein a flow guide pipe 3 is arranged in the shell 1, an oil outlet pipe 10 is arranged in the shell 1, two ends of the oil outlet pipe 10 penetrate through the shell 1 and are horizontally arranged, reinforcing ribs connected with the inner wall of the shell 1 are arranged on two sides of the oil outlet pipe 10, the top surfaces of the reinforcing ribs are flush with the top surface of the oil outlet pipe 10, the stability of the oil outlet pipe 10 is improved, the bottom end of the flow guide pipe 3 is communicated with the oil outlet pipe 10, and fuel filtered by the filter element 2 is discharged through the flow guide pipe 3 and the oil outlet pipe 10 and is supplied to an engine. The filter core 2 is sleeved on the flow guide pipe 3 and forms sealing at the bottom between the two, specifically, the sealing between the filter core 2 and the flow guide pipe 3 is that a sealing post 4 is arranged at the lower part of the flow guide pipe 3, a sealing piece 6 is arranged on the inner wall of a lower end cover 5 of the filter core 2, the sealing piece 6 can be a sealing sleeve or a sealing ring, wherein the sealing piece 6 is sleeved on the sealing post 4 to form sealing connection, the sealing between the filter core 2 and the flow guide pipe 3 is realized, the fuel oil at the periphery of the filter core 2 is prevented from entering between the flow guide pipe 3 and the filter core 2, the fuel oil is ensured to enter the filter core 2 only through filter paper of the filter core 2, and the purpose of fuel oil filtration is achieved. An error-proofing structure which enables the filter element 2 to be sleeved in place to form a seal is arranged between the filter element 2 and the shell 1.
According to the fuel filter with the error-proof filter element, the error-proof structure is arranged between the shell 1 and the filter element 2, so that after the non-genuine filter element (the non-genuine filter element) is assembled, the filter element 2 and the guide tube 3 cannot be sealed, the fuel filter cannot be used for filtering, and after the genuine filter element (the genuine filter element) is assembled, the bottom between the filter element 2 and the guide tube 3 is just sealed, and the fuel filter can be used for filtering normally, so that a user is guided to use the genuine filter element, and the filtering effect and the service life of the filter are ensured.
Example 1
Referring to fig. 1-4, in a specific embodiment of the present utility model, the error-proofing structure in this embodiment includes a limiting step 7 disposed on an inner wall of the housing 1, where the limiting step 7 is located on the inner wall of the housing 1 between a bottom surface and a top surface of the sealing post 4, so as to ensure that the sealing member 6 corresponding to the lower end cap 5 can contact with the sealing post 4, and the outer edge of the lower end cap 5 of the filter element 2 is clamped on the limiting step 7, and the filter element 2 is supported and limited by using the limiting step 7, so that a seal can be formed between the sealing member 6 and the sealing post 4.
The mistake proofing dress structure of this embodiment inserts filter core 2 in shell 1 when the assembly, and filter core 2 cup joints on honeycomb duct 3, when the lower extreme cover 5 of filter core 2 and spacing step 7 contact, forms the support and spacing to filter core 2, and sealing member 6 and sealing post 4 cooperation are sealed this moment, realize the fuel filtering capability, and in case the specification of user's use filter core 2 is incorrect, for example: the height of the filter element or the width of the lower end cover does not meet the requirements, after the filter element 2 is assembled, the filter element 2 and the flow guide pipe 3 cannot be sealed, and then the fuel filtering function cannot be realized, so that the purpose of mistakenly assembling the filter element is achieved.
Preferably, the limiting step 7 is an annular step formed on the inner wall of the shell 1, so that the processing and manufacturing are more convenient, and meanwhile, the assembly is more convenient.
Example 2
Referring to fig. 5-8, in another embodiment of the present utility model, the present embodiment is basically the same as embodiment 1, and is different in that the limiting step 7 is a plurality of shoulders formed on the inner wall of the housing 1 at intervals, each shoulder extends through a guiding chute 8 toward the top of the housing 1, a plurality of guiding sliders 9 are disposed at the outer edge of the lower end cap 5 of the filter element 2, and each guiding slider 9 uniformly and correspondingly passes through the guiding chute 8 and is clamped in the shoulder.
The mistake proofing dress structure of this embodiment inserts filter core 2 in shell 1 when the assembly, and filter core 2 cup joints on honeycomb duct 3, and direction slider 9 slides in along direction spout 8, when direction slider 9 and shoulder contact, forms the support and spacing to filter core 2, and sealing member 6 and sealing post 4 cooperation are sealed this moment, realizes the fuel filtering function, and in case the user uses filter core 2's specification incorrect, for example: the height of the filter element or the lower end cover is not provided with a guide sliding block, so that the filter element 2 cannot be assembled, replaced or assembled, the filter element 2 cannot be sealed with the guide pipe 3, and further the fuel filtering function cannot be realized, thereby achieving the purpose of preventing the filter element from being assembled by mistake. This embodiment adopts the cooperation of circular bead and direction spout, can support filter core and axial spacing, also can realize circumference spacing simultaneously, prevents that the filter core from rotating, and spacing effect is better, and the mistake proofing dress effect is more obvious.
Example 3
Referring to fig. 9-11, in another embodiment of the present utility model, the replacing structure in this embodiment includes a limiting boss 11 protruding from the lower end surface of the lower end cap 5 of the filter element 2, where the protruding height of the limiting boss 11 is greater than the distance from the bottom surface of the sealing post 4 to the top surface of the oil outlet pipe 10 and less than the distance from the top surface of the sealing post 4 to the top surface of the oil outlet pipe 10, so as to ensure that the sealing member 6 corresponding to the lower end cap 5 can contact with the sealing post 4, and the bottom surface of the limiting boss 11 is attached to the top surface of the oil outlet pipe 10, i.e. the oil outlet pipe 10 is used to support and limit the filter element 2.
The mistake proofing dress structure of this embodiment inserts filter core 2 in shell 1 when the assembly, and filter core 2 cup joints on honeycomb duct 3, and when spacing boss 11 and the play oil pipe 10 contact of bottom end cover 5 bottom, form the support and spacing to filter core 2, sealing member 6 and sealing post 4 cooperation are sealed this moment, realize the fuel filtering function, in case the specification of user's use filter core 2 is incorrect, for example: the lower end cover is not provided with a limiting boss or is not thick enough, so that after the filter element 2 is assembled, the filter element 2 and the guide pipe 3 cannot be sealed, and further the fuel filtering function cannot be realized, thereby achieving the purpose of preventing the filter element from being assembled by mistake.
Preferably, the limiting boss 11 is a limiting ring arranged in an annular mode or a boss formed by a plurality of arc plates arranged at intervals, so that the material can be effectively reduced and the cost can be reduced while the supporting and limiting functions are met.
Example 4
Referring to fig. 12-13, in another embodiment of the present utility model, the error-proofing structure includes a limiting tube 12 protruding from the center of the top surface of the lower end cap 5 of the filter element 2, the limiting tube 12 is sleeved on the periphery of the sealing post 4, the sealing member 6 is located on the inner wall of the limiting tube 12, the bottom surface of the lower end cap 5 of the filter element 2 is attached to the top surface of the oil outlet pipe 10, and the filter element 2 is supported and limited by the oil outlet pipe 10.
The mistake proofing dress structure of this embodiment inserts filter core 2 in shell 1 when the assembly, and filter core 2 cup joints on honeycomb duct 3, and when bottom surface and the play oil pipe 10 contact of bottom end cover 5, forms the support and spacing to filter core 2, and sealing member 6 and sealing post 4 cooperation are sealed this moment, realize the fuel filtering capability, and in case the user uses the specification of filter core 2 incorrect, for example: the lower end cover is not provided with a limiting pipe or the thickness of the lower end cover is insufficient, after the filter element 2 is assembled, the filter element 2 and the guide pipe 3 cannot be sealed, and further the fuel filtering function cannot be realized, so that the purpose of preventing the filter element from being assembled by mistake is achieved.
Example 5
Referring to fig. 14-15, in another specific embodiment of the present utility model, the present embodiment is substantially the same as embodiment 3, and is different in that the error proofing structure further includes a limiting step 7 disposed on an inner wall of the housing 1, wherein the limiting step 7 is located on the inner wall of the housing 1 between the bottom surface and the top surface of the sealing post 4, and an outer edge of the lower end cap 5 of the filter element 2 is clamped on the limiting step 7.
In the mistake proofing dress structure of this embodiment, when the assembly, insert shell 1 with filter core 2 in, and filter core 2 cup joints on honeycomb duct 3, when spacing boss 11 and the play oil pipe 10 contact of bottom end cover 5 bottom, the bottom end cover 5 and the spacing step 7 of filter core 2 also contact, form the support and the spacing to filter core 2, sealing member 6 and sealing post 4 cooperation are sealed this moment, realize the fuel filtering capability, in case the specification of user's use filter core 2 is incorrect, for example: the lower end cover is not provided with a limiting boss or is not thick enough, so that after the filter element 2 is assembled, the filter element 2 and the guide pipe 3 cannot be sealed, and further the fuel filtering function cannot be realized, thereby achieving the purpose of preventing the filter element from being assembled by mistake. The double-support structure that the limiting boss 11 contacts with the oil outlet pipe 10 and the lower end cover 5 contacts with the limiting step 7 is adopted to support and limit the filter element 2, so that the installation stability of the filter element 2 can be further improved, and the error-proofing effect is better.
Preferably, spacing step 7 in this embodiment is a plurality of intervals and sets up the circular bead at the inner wall of shell 1, and every circular bead all runs through to the top of shell 1 and extends there is direction spout 8, is equipped with a plurality of direction sliders 9 at the lower end cover 5 outward flange of filter core 2, and every direction slider 9 even a pair of corresponding pass direction spout 8 and joint in the circular bead, can also realize circumference spacing simultaneously to filter core support and axial spacing, prevent that the filter core from rotating, spacing effect is better, and the mistake proofing dress effect is more obvious.
While only the preferred embodiments of the present utility model have been described above, it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these do not affect the effect of the implementation of the present utility model and the utility of the patent.
Claims (10)
1. The utility model provides a but fuel filter of mistake proofing dress filter core, includes shell (1) and filter core (2), shell (1) inside be equipped with honeycomb duct (3), filter core (2) cup joint on honeycomb duct (3) and form sealedly in the bottom between the two, its characterized in that, filter core (2) and shell (1) between be equipped with and make filter core (2) cup joint the mistake proofing dress structure that forms sealedly in place.
2. The fuel filter with the anti-misplaced filter element according to claim 1, characterized in that a sealing column (4) is arranged at the lower part of the flow guide pipe (3), a sealing piece (6) is arranged on the inner wall of a lower end cover (5) of the filter element (2), and the sealing piece (6) is sleeved on the sealing column (4) to form sealing connection.
3. The fuel filter with the anti-misplaced filter element according to claim 2, characterized in that the anti-misplaced structure comprises a limiting step (7) arranged on the inner wall of the shell (1), the limiting step (7) is positioned on the inner wall of the shell (1) between the bottom surface and the top surface of the sealing column (4), and the outer edge of the lower end cover (5) of the filter element (2) is clamped on the limiting step (7).
4. A fuel filter with a filter element capable of preventing incorrect assembly according to claim 3, wherein the limit step (7) is an annular step formed on the inner wall of the housing (1).
5. A fuel filter with a filter element capable of being installed in a staggered manner according to claim 3, wherein the limiting steps (7) are a plurality of shoulders which are formed in the inner wall of the shell (1) at intervals, each shoulder extends through a guide chute (8) towards the top of the shell (1), a plurality of guide sliding blocks (9) are arranged at the outer edge of the lower end cover (5) of the filter element (2), and each guide sliding block (9) uniformly and correspondingly penetrates through the guide chute (8) and is clamped in the shoulder.
6. The fuel filter with the anti-misplaced filter element according to claim 2, characterized in that an oil outlet pipe (10) is arranged in the shell (1), and the bottom end of the flow guide pipe (3) is communicated with the oil outlet pipe (10).
7. The fuel filter with the anti-misassembly filter element according to claim 6, wherein the anti-misassembly structure comprises a limiting boss (11) protruding from the lower end face of the lower end cover (5) of the filter element (2), the protruding height of the limiting boss (11) is greater than the distance from the bottom face of the sealing column (4) to the top face of the oil outlet pipe (10), and is smaller than the distance from the top face of the sealing column (4) to the top face of the oil outlet pipe (10), and the bottom face of the limiting boss (11) is attached to the top face of the oil outlet pipe (10).
8. The fuel filter with the anti-misplaced filter element according to claim 7, characterized in that the limit boss (11) is a limit ring arranged in a ring shape or a boss formed by a plurality of arc plates arranged at intervals.
9. The fuel filter with the anti-misassembly filter element according to claim 7 or 8, characterized in that the anti-misassembly structure further comprises a limiting step (7) arranged on the inner wall of the housing (1), the limiting step (7) is positioned on the inner wall of the housing (1) between the bottom surface and the top surface of the sealing column (4), and the outer edge of the lower end cover (5) of the filter element (2) is clamped on the limiting step (7).
10. The fuel filter with the anti-misplaced filter element according to claim 6, characterized in that the anti-misplaced structure comprises a limiting pipe (12) protruding from the center of the top surface of the lower end cover (5) of the filter element (2), the limiting pipe (12) is sleeved on the periphery of the sealing column (4), the sealing piece (6) is positioned on the inner wall of the limiting pipe (12), and the bottom surface of the lower end cover (5) of the filter element (2) is attached to the top surface of the oil outlet pipe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222984175.3U CN219549004U (en) | 2022-11-09 | 2022-11-09 | Fuel filter capable of preventing filter element from being installed by mistake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222984175.3U CN219549004U (en) | 2022-11-09 | 2022-11-09 | Fuel filter capable of preventing filter element from being installed by mistake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219549004U true CN219549004U (en) | 2023-08-18 |
Family
ID=87737396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222984175.3U Active CN219549004U (en) | 2022-11-09 | 2022-11-09 | Fuel filter capable of preventing filter element from being installed by mistake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219549004U (en) |
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2022
- 2022-11-09 CN CN202222984175.3U patent/CN219549004U/en active Active
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