CN219220611U

CN219220611U - Novel fuel filter

Info

Publication number: CN219220611U
Application number: CN202320154585.7U
Authority: CN
Inventors: 庞武明; 唐世兢; 韦盛轩; 韦晓
Original assignee: Guangxi Watyuan Filtration System Co ltd
Current assignee: Guangxi Watyuan Filtration System Co ltd
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-06-20
Anticipated expiration: 2033-02-08

Abstract

The utility model discloses a novel fuel filter, belongs to the field of fuel filters, and solves the problem that an existing fuel filter is easy to wrongly install a non-genuine filter element. The fuel filter comprises a shell, a filter element and a filter seat, wherein the filter element is inserted into the shell, the filter seat is detachably connected with the shell to lock the filter element in the shell, and a mistake proofing structure which enables the filter element to be assembled in place and the filter seat to be assembled in place is arranged between the shell and the filter element to form a seal. The fuel filter can guide users to use the genuine filter element, and ensures the filtering effect and the service life of the filter.

Description

Novel fuel filter

Technical Field

The utility model relates to a fuel filter, in particular to a novel fuel filter.

Background

The fuel filter is an important component in a fuel engine system, and has the function of filtering out harmful particles and moisture 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. Because the filter elements on the market are numerous, the filter elements with various qualities are all available, once a user selects the filter element with poor quality to replace, the problems of poor filtering effect, low service life, filtration failure of products and even engine faults of the filter are easily caused; or cause a problem in that the filter cannot be used due to the inability to assemble. Therefore, there is a need to develop a new fuel filter to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to solve the technical problems of the prior art and aims to provide a novel fuel filter, 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 novel fuel filter, includes shell, filter core and strain the seat, the filter core peg graft in the shell, strain seat and shell and can dismantle the connection in order to lock the filter core in the shell, shell and filter core between be equipped with and make the filter core assemble in place and strain the seat and assemble in place in order to form sealed mistake proofing dress structure.

As a further improvement, the top of the filter seat is also integrally provided with a fuel electric pump, the fuel electric pump is detachably connected with the filter seat, an umbrella-shaped valve is arranged on the filter seat between the fuel electric pump and the upper end cover of the filter element, one side of the shell is provided with an oil inlet pipe, and one side of the fuel electric pump is provided with an oil outlet pipe.

Further, the lower part of the filter seat is provided with a ring rib.

Further, the filter seat one side still integrate and be equipped with the installing support, the installing support with filter seat detachable connection.

Further, a plurality of buckles are symmetrically arranged on one side of the mounting bracket, a plurality of clamping blocks are correspondingly symmetrically arranged on one side of the filter base, and the clamping blocks are correspondingly clamped on the buckles one by one.

Further, the lower inner wall of the shell is provided with a lower sealing surface, the upper inner wall of the filter seat is provided with an upper sealing surface, sealing rings are arranged between the lower end cover and the lower sealing surface of the filter element and between the upper end cover and the upper sealing surface of the filter element so that the filter element is assembled in place to form a seal, and sealing rings are arranged between the lower inner wall of the filter seat and the upper outer wall of the shell so that the filter seat is assembled in place to form a seal.

Further, the mistake proofing structure include spacing post and limit structure, the inner wall bottom at the shell is fixed to spacing post, limit structure set up in the bottom of filter core, just spacing post top and limit structure laminate mutually.

Further, the limit structure comprises a limit groove formed in the bottom of the lower end cover of the filter element, the limit column is inserted into the limit groove, and the top surface of the limit column is attached to the bottom surface of the limit groove.

Further, the limiting structure comprises a through hole formed in the bottom of the lower end cover of the filter element, the limiting column penetrates through the through hole, and the top surface of the limiting column is attached to the bottom surface of the secondary filter element of the filter element.

Further, limit structure including set up the through-hole in the bottom of the lower extreme cover of filter core and set up the spacing boss in the second grade filter core bottom of filter core, spacing post run through the through-hole, just the top surface of spacing post is laminated mutually with the bottom surface of spacing boss.

Advantageous effects

Compared with the prior art, the utility model has the following advantages:

according to the fuel filter disclosed by the utility model, the incorrect assembly preventing structure is arranged between the filter element and the shell, so that after the non-genuine filter element (the non-original plant filter element) is assembled to the shell, the filter element and the shell cannot be assembled in place for sealing, or the filter seat and the shell cannot be assembled in place for sealing, the fuel filter fails in filtration, and after the genuine filter element (the original plant filter element) is assembled, the filter element and the shell, the filter seat and the shell can be assembled in place for forming sealing, so that the 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 a schematic perspective view of embodiment 1 of the present utility model;

FIG. 3 is an enlarged schematic view showing the three-dimensional structure of the mounting bracket according to embodiment 1 of the present utility model;

fig. 4 is an enlarged schematic view of a three-dimensional structure of a filter base in 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 a schematic cross-sectional view of embodiment 3 of the present utility model.

Wherein: 1-shell, 2-filter element, 3-filter base, 4-fuel electric pump, 5-upper end cover, 6-umbrella type valve, 7-oil inlet pipe, 8-oil outlet pipe, 9-ring rib, 10-installing support, 11-buckle, 12-fixture block, 13-lower sealing surface, 14-upper sealing surface, 15-lower end cover, 16-sealing ring, 17-limit column, 18-limit groove, 19-through hole, 20-second-stage filter element, 21-limit boss, 22-filter paper and 23-central tube.

Detailed Description

The utility model will be further described with reference to specific embodiments in the drawings.

Example 1

Referring to fig. 1-4, the novel fuel filter of the present utility model includes a housing 1, a filter element 2 and a filter base 3, where the filter element 2 is a two-stage filter element, and includes an upper end cover 5, a lower end cover 15, a filter paper 22, a secondary filter element 20 and a central tube 23, which are not described in detail herein, the filter element 2 is inserted into the housing 1, the filter base 3 is detachably connected with the housing 1 to lock the filter element 2 in the housing 1, specifically, the filter base 3 is connected with the housing 1 through threads, and of course, in other embodiments, the filter base 3 and the housing 1 can also be connected through bolts, and an error-proofing structure is provided between the housing 1 and the filter element 2 to make the filter element 2 assembled in place and the filter base 3 assembled in place to form a seal. The lower inner wall of the shell 1 is provided with a lower sealing surface 13, the upper inner wall of the filter seat 3 is provided with an upper sealing surface 14, sealing rings 16 are arranged between a lower end cover 15 of the filter element 2 and the lower sealing surface 13 and between an upper end cover 5 of the filter element 2 and the upper sealing surface 14 so that the filter element 2 is assembled in place to form a seal, namely, after the filter element 2 is assembled, the two sealing rings 16 are respectively arranged between the lower end cover 15 and the lower sealing surface 13 and between the upper end cover 5 and the upper sealing surface 14, specifically, the top of the upper end cover 5 and the upper sealing surface 14 are both stepped surfaces, the two sealing rings 16 are respectively arranged between the two stepped surfaces, and the sealing rings 16 are arranged between the lower inner wall of the filter seat 3 and the upper outer wall of the shell 1 so that the filter seat 3 is assembled in place to form a seal, namely, after the filter seat 3 is assembled, the sealing rings 16 are arranged between the lower inner wall of the filter seat 3 and the upper outer wall of the shell 1. This mistake proofing dress structure includes spacing post 17 and limit structure, wherein, spacing post 17 is fixed in the inner wall bottom of shell 1, specifically, spacing post 17 an organic whole injection moulding is in the bottom center of shell 1, limit structure sets up in the bottom of filter core 2, and spacing post 17 top is laminated with limit structure mutually, utilize limit structure and spacing post 17 contact to form spacingly, make filter core 2 assemble in place the back, between the lower end cover 15 of filter core 2 and lower seal face 13, all form sealedly between the upper end cover 5 of filter core 2 and upper seal face 14, and after the filter base 3 is assembled in place, form sealedly between the lower part inner wall of filter base 3 and the upper portion outer wall of shell 1.

According to the fuel filter disclosed by the utility model, the incorrect assembly preventing structure is arranged between the filter element 2 and the shell 1, so that after the non-genuine filter element (the non-original plant filter element) is assembled to the shell 1, the filter element 2 and the shell 1 cannot be assembled in place for sealing, or the filter seat 3 and the shell 1 cannot be assembled in place for sealing, the fuel filter fails in filtration, and after the genuine filter element (the original plant filter element) is assembled, the filter element 2, the shell 1, the filter seat 3 and the shell 1 can be assembled in place for sealing, 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.

Preferably, the top of the filter seat 3 is further integrally provided with a fuel electric pump 4, the fuel electric pump 4 is detachably connected with the filter seat 3, specifically, the fuel electric pump 4 can be connected with the top of the filter seat 3 through threads, of course, in other embodiments, the fuel electric pump 4 can also be mounted on the top of the filter seat 3 through bolts, an umbrella valve 6 is arranged on the filter seat 3 between the fuel electric pump 4 and the upper end cover 5 of the filter element 2, an oil inlet pipe 7 is arranged on one side of the shell 1, an oil outlet pipe 8 is arranged on one side of the fuel electric pump 4, fuel enters a space between the filter element 2 and the shell 1 from the oil inlet pipe, enters a central pipe 23 after being filtered by the filter element 2, can be discharged from the centers of the central pipe 23 and the upper end cover 5, and enters the top of the filter seat 3 through the umbrella valve 6, and the fuel electric pump 4 can supply oil through the fuel electric pump 4 and can also be directly discharged from the top of the filter seat 3.

Preferably, the lower part of the filter seat 3 is provided with the ring rib 9, the ring rib 9 and the filter seat 3 are integrally formed, and the ring rib 9 can play a role in improving the roundness of the filter seat 3 and improve the precision of the filter seat 3 in the manufacturing and forming process of the filter seat 3.

Preferably, the mounting bracket 10 is further integrated on one side of the filter seat 3 and used for mounting the whole fuel filter on an engine, and the mounting bracket 10 is detachably connected with the filter seat 3, so that the mounting bracket is convenient to assemble, disassemble and maintain. Further, a plurality of buckles 11 are symmetrically arranged on one side of the mounting bracket 10, the buckles 11 are L-shaped plates bent towards the inner side of the mounting bracket 10, the upper end and the lower end are of opening structures, the structure is integrated with the mounting bracket 10, a plurality of clamping blocks 12 are correspondingly symmetrically arranged on one side of the filter base 3, the clamping blocks 12 are L-shaped plates extending towards the front side and the rear side of the filter base 3, the structure is integrated with the filter base 3, and the clamping blocks 12 are in one-to-one correspondence to the buckles 11. When the fuel filter is installed and fixed, the clamping block 12 is aligned with the clamping block 11, and then the installation can be completed by clamping from top to bottom, so that the installation is very convenient. Furthermore, in order to improve the mounting stability of the fuel filter, a fastening bolt is further arranged on one side of the mounting bracket 10, and the fastening bolt penetrates through the mounting bracket 10 and is in threaded connection with the filter seat 3, so that fewer bolts are used, but the fuel filter can be still reinforced, and the quick assembly disassembly and maintenance are not affected.

The limit structure in this embodiment includes a limit groove 18 formed at the bottom of the lower end cover 15 of the filter element 2, wherein, the limit post 17 is inserted in the limit groove 18, and the top surface of the limit post 17 is attached to the bottom surface of the limit groove 18. In the embodiment, the filter element is further prevented from being assembled by matching the limiting column 17 with the limiting groove 18, in the practical application process, when the lower end cover of the non-genuine filter element is not provided with the limiting groove 18 (namely, is a plane) and is consistent with the genuine filter element in height, the lower end cover is contacted with the limiting column 17 when the filter element is assembled to the shell 1, then the filter element can be lifted, the sealing ring 16 corresponding to the lower end cover cannot be contacted with the sealing surface 13 to form a seal, the filter seat 3 cannot be assembled in place to cover the sealing ring 16 corresponding to the filter element to form a seal, and the fuel filter cannot be assembled; when the lower end cover of the non-genuine filter element is not provided with the limit groove 18 (namely, a plane) and is smaller than the genuine filter element in height, although the filter element can be installed in the shell 1, the sealing ring 16 corresponding to the lower end cover cannot be in contact with the sealing surface 13 to form a seal, and the fuel filter fails in filtration and cannot be used; only the filter element with the lower end cover 15 provided with the limit groove 18 and the height dimension consistent with that of the genuine filter element can be installed in the shell 1, so that a user can be guided to use the genuine filter element, and the filtering effect and the service life of the fuel filter are ensured.

Example 2

Referring to fig. 5, another embodiment of the present utility model is basically the same as embodiment 1, and the difference is that the limiting structure in this embodiment includes a through hole 19 formed at the bottom of the lower end cap 15 of the filter element 2, where the limiting post 17 penetrates through the through hole 19, and the top surface of the limiting post 17 is attached to the bottom surface of the secondary filter element 20 of the filter element 2. In this embodiment, the second-stage filter element 20 of the filter element 2 contacts with the limiting post 17 to form a limit, so that the effect of preventing the filter element from being assembled by mistake can be achieved, in this embodiment, the height of the second-stage filter element 20 can be increased, the bottom of the second-stage filter element 20 can be extended to the top surface of the limiting post 17, and the manufacturing is relatively convenient.

Example 3

Referring to fig. 6, another embodiment of the present utility model is basically the same as embodiment 1, and is different in that the limiting structure in this embodiment includes a through hole 19 formed at the bottom of the lower end cap 15 of the filter element 2 and a limiting boss 21 disposed at the bottom of the secondary filter element 20 of the filter element 2, where the limiting boss 21 and the secondary filter element 20 are an integral structure, the limiting post 17 penetrates through the through hole 19, and the top surface of the limiting post 17 is attached to the bottom surface of the limiting boss 21. In this embodiment, the limiting boss 21 additionally arranged at the bottom of the filter element 2 contacts with the limiting post 17 to form a limit, so that the effect of preventing the filter element from being assembled by mistake can be achieved.

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

1. The utility model provides a novel fuel filter, includes shell (1), filter core (2) and strain seat (3), filter core (2) peg graft in shell (1), strain seat (3) and shell (1) and can dismantle and be connected in order to lock filter core (2) in shell (1), a serial communication port, shell (1) and filter core (2) between be equipped with and make filter core (2) assemble in place and strain seat (3) and assemble in place in order to form sealed mistake proofing dress structure.

2. The novel fuel filter according to claim 1, wherein the top of the filter seat (3) is further integrally provided with a fuel electric pump (4), the fuel electric pump (4) is detachably connected with the filter seat (3), an umbrella-shaped valve (6) is arranged on the filter seat (3) between the fuel electric pump (4) and the upper end cover (5) of the filter element (2), an oil inlet pipe (7) is arranged on one side of the shell (1), and an oil outlet pipe (8) is arranged on one side of the fuel electric pump (4).

3. The novel fuel filter according to claim 1, wherein the lower part of the filter base (3) is provided with a ring rib (9).

4. The novel fuel filter according to claim 1, wherein a mounting bracket (10) is further integrated on one side of the filter base (3), and the mounting bracket (10) is detachably connected with the filter base (3).

5. The novel fuel filter according to claim 4, wherein a plurality of buckles (11) are symmetrically arranged on one side of the mounting bracket (10), and a plurality of clamping blocks (12) are correspondingly symmetrically arranged on one side of the filter base (3), and the clamping blocks (12) are correspondingly clamped on the buckles (11) one by one.

6. A novel fuel filter according to any one of claims 1-5, characterized in that the lower inner wall of the housing (1) is provided with a lower sealing surface (13), the upper inner wall of the filter seat (3) is provided with an upper sealing surface (14), a sealing ring (16) is arranged between the lower end cover (15) of the filter element (2) and the lower sealing surface (13) and between the upper end cover (5) of the filter element (2) and the upper sealing surface (14) so as to enable the filter element (2) to be assembled in place to form a seal, and a sealing ring (16) is arranged between the lower inner wall of the filter seat (3) and the upper outer wall of the housing (1) so as to enable the filter seat (3) to be assembled in place to form a seal.

7. The novel fuel filter according to claim 6, wherein the error proofing structure comprises a limit column (17) and a limit structure, the limit column (17) is fixed at the bottom of the inner wall of the shell (1), the limit structure is arranged at the bottom of the filter element (2), and the top of the limit column (17) is attached to the limit structure.

8. The novel fuel filter according to claim 7, wherein the limiting structure comprises a limiting groove (18) formed in the bottom of the lower end cover (15) of the filter element (2), the limiting column (17) is inserted into the limiting groove (18), and the top surface of the limiting column (17) is attached to the bottom surface of the limiting groove (18).

9. The novel fuel filter according to claim 7, wherein the limiting structure comprises a through hole (19) formed in the bottom of the lower end cover (15) of the filter element (2), the limiting column (17) penetrates through the through hole (19), and the top surface of the limiting column (17) is attached to the bottom surface of the secondary filter element (20) of the filter element (2).

10. The novel fuel filter according to claim 7, wherein the limiting structure comprises a through hole (19) formed in the bottom of a lower end cover (15) of the filter element (2) and a limiting boss (21) arranged at the bottom of a secondary filter element (20) of the filter element (2), the limiting column (17) penetrates through the through hole (19), and the top surface of the limiting column (17) is attached to the bottom surface of the limiting boss (21).