CN208749472U - A kind of fuel filter - Google Patents

Abstract

The utility model discloses a kind of fuel filters, including shell, filter core is installed in the shell, fuel gallery is formed between the shell and filter core, the upper end of the shell is equipped with upper cover, fuel inlet and fuel outlet are provided on the upper lid, the fuel inlet is connected to fuel gallery, is connected to inside the fuel outlet and filter core.The fuel filter housing of the utility model is unlikely to deform, and is not easy to plug inside filter, long service life, can impurity inside easy cleaning filter, it is user-friendly.

Description

A kind of fuel filter

Technical field

The utility model relates to automobile filter technical field more particularly to a kind of fuel filters.

Background technique

Fuel filter (Fuel filter) has diesel fuel filter (Diesel filter), gasoline filter (Fuel ) and natural air cleaner (Gas filter) three classes Filter.The effect of fuel filter is particulate matter, the water prevented in fuel oil And filth, guarantee fuel system precise part from abrasion and other damages.Existing fuel filter has the disadvantage in that 1. shell mutability, in use or in production handling process, shell is collided mutability；2. with the time is used Increase, the more poly- sundries in fuel filter the more, easily cause blocking inside filter, and then influence normal fuel oil and supply It gives, reduces the service life of engine.How to design that a kind of shell is unlikely to deform, the internal fuel filter being not easy to plug is that this is practical Novel technical problem to be solved.

Utility model content

In view of the shortcomings of the prior art, the utility model provides a kind of shells to be unlikely to deform, the internal fuel oil being not easy to plug Filter.

The utility model is realized by following technological means solves above-mentioned technical problem:

A kind of fuel filter, including shell are equipped with filter core, shape between the shell and filter core in the shell At fuel gallery, the upper end of the shell is equipped with upper cover, is provided with fuel inlet and fuel outlet on the upper lid, described Fuel inlet be connected to fuel gallery, be connected to inside the fuel outlet and filter core；The shell is double-layer structure, packet Inner housing and outer housing are included, the inner housing is the tubular structure of upper and lower opening, and the outer housing is upper end opening lower end Closed barrel-like structure, the lower end of the outer housing are provided with circumferential rebate identical with inner housing lower end size, the inner casing In the lower end insertion circumferential rebate of body, the inwardly projecting formation interconnecting piece in the upper end of the outer housing, the interconnecting piece is annular, The upper-end contact of the interconnecting piece and inner housing；The side wall of the inner housing outwardly protrudes to form several protrusions, described convex The inner wall of the outermost end in portion and outer housing contacts out, and the inner wall of the inner housing forms groove at lug position, described convex Several magnet blocks are installed on the inner wall in portion out.

Preferably, a kind of fuel filter, the protrusion are arc, and the inner wall of the magnet block is and convex The arcuation that portion's inner wall agrees with out, the inner wall of the magnet block insertion protrusion, and the inner wall of the inner wall of magnet block and protrusion Concordantly.

Preferably, a kind of fuel filter is equipped with first between the lower end and circumferential rebate of the inner housing Sealing ring is equipped with the second sealing ring between the upper end and interconnecting piece of the inner housing.

Preferably, a kind of fuel filter is provided with circular groove on the bottom surface of the outer housing, described The bottom surface of groove and outer housing is concentric, and the diameter of the groove is greater than the outer diameter of circumferential rebate, is equipped in the groove Bottom cover.

Utility model has the advantages that the side wall due to inner housing outwardly protrudes, shape between the inner hull and the outer hull At several protrusions with booster action, the integral strength of shell can be improved, shell is integrally unlikely to deform, and is conducive to improve combustion The service life of oil rectifier；Inner housing forms groove in lug position, can accommodate the impurity filtered out, cooperates ferromagnetic fast absorption Effect, can alleviate cartridge pressure significantly, guarantee the passability of filter；Since inner housing is plugged on outer housing by circumferential rebate On, when impurities accumulation is more in groove, inner housing need to only be extracted and be cleared up, cleaning is convenient, solves traditional combustion The difficult problem of impurity cleaning, user-friendly inside oil rectifier.

Further, the protrusion is arc, the arcuation that the inner wall of the magnet block is and protrusion inner wall agrees with, institute The inner wall for the magnet block insertion protrusion stated, and the inner wall of magnet block is concordant with the inner wall of protrusion.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the structural schematic diagram at the utility model protrusion.

Fig. 3 is the lower end of the utility model outer housing and the lower end connection schematic diagram of inner housing.

Fig. 4 is the structural schematic diagram of the utility model outer housing lower end.

Fig. 5 is the upper end of the utility model outer housing and the upper end connection schematic diagram of inner housing.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to The range of the utility model protection.

A kind of fuel filter, including shell 1 are equipped with filter core 2, the shell 1 and filter core 2 in the shell 1 Between form fuel gallery 3, the upper end of the shell 1 is equipped with upper cover 4, and fuel inlet 5 and combustion are provided in the upper cover 4 Oil export 6, the fuel inlet 5 are connected to fuel gallery 3, are connected to inside the fuel outlet 6 and filter core 2；Described Shell 1 is double-layer structure, including inner housing 7 and outer housing 8, and the inner housing 7 is the tubular structure of upper and lower opening, described Outer housing 8 is the barrel-like structure of upper end opening lower end closed, and the lower end of the outer housing 8 is provided with and 7 lower end size of inner housing The lower end of identical circumferential rebate 9, the inner housing 7 is inserted into circumferential rebate 9, the inwardly projecting shape in upper end of the outer housing 8 At interconnecting piece 10, the interconnecting piece 10 is annular, the upper-end contact of the interconnecting piece 10 and inner housing 7；The inner housing 7 Side wall outwardly protrude to form several protrusions 11, the inner wall contact of the outermost end of the protrusion 11 and outer housing 8, it is described in The inner wall of shell 7 forms groove 12 at lug position, and several magnet blocks 13 are equipped on the inner wall of the protrusion 11.

Since the side wall of inner housing outwardly protrudes, formed between the inner hull and the outer hull several convex with booster action The integral strength of shell can be improved in portion out, and shell is integrally unlikely to deform, and is conducive to the service life for improving fuel filter；Inner housing Groove is formed in lug position, the impurity filtered out can be accommodated, cooperate ferromagnetic fast suction-operated, filter core pressure can be alleviated significantly Power guarantees the passability of filter；Since inner housing is plugged on outer housing by circumferential rebate, when in groove impurities accumulation compared with When more, inner housing need to only be extracted and be cleared up, cleaning is convenient, and it is tired to solve impurity cleaning inside conventional fuel oil filter Difficult problem, it is user-friendly.

Preferably, the protrusion 11 is arc, and the inner wall and 11 inner wall of protrusion of the magnet block 13 agree with Arcuation, the magnet block 13 is embedded in the inner wall of protrusion 11, and the inner wall of magnet block 13 is concordant with the inner wall of protrusion 11.

Projection design is arc, and intensity is high；The inner wall of the magnet block and inner wall of protrusion is concordant is arranged, facilitates sundries clear Reason.

Preferably, the first sealing ring 14, the inner housing 7 are installed between the lower end and circumferential rebate 9 of the inner housing 7 Upper end and interconnecting piece 10 between the second sealing ring 15 is installed.

Be fitted with sealing ring between inner housing and the upper and lower side of outer housing, prevent fuel oil enter inner housing and outer housing it Between, avoid fuel leakage.

Preferably, it is provided with circular groove 16 on the bottom surface of the outer housing 8, the groove 16 and outer housing 8 Bottom surface is concentric, and the diameter of the groove 16 is greater than the outer diameter of circumferential rebate 9, is equipped with bottom cover 17 in the groove 16.

Bottom cover is installed in the bottom surface of outer housing, facilitates the taking-up of inner housing, and then facilitates the clear of fuel filter inside impurity Reason.

Since the side wall of inner housing outwardly protrudes, formed between the inner hull and the outer hull several convex with booster action The integral strength of shell can be improved in portion out, and shell is integrally unlikely to deform, and is conducive to the service life for improving fuel filter；Inner housing Groove is formed in lug position, the impurity filtered out can be accommodated, cooperate ferromagnetic fast suction-operated, filter core pressure can be alleviated significantly Power guarantees the passability of filter；Since inner housing is plugged on outer housing by circumferential rebate, when in groove impurities accumulation compared with When more, inner housing need to only be extracted and be cleared up, cleaning is convenient, and it is tired to solve impurity cleaning inside conventional fuel oil filter Difficult problem, it is user-friendly；Further, the protrusion is arc, the inner wall of the magnet block be and protrusion in The arcuation that wall agrees with, the inner wall of the magnet block insertion protrusion, and the inner wall of magnet block is concordant with the inner wall of protrusion.

It should be noted that, in this document, such as first and second or the like relational terms are used merely to one if it exists A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in the process, method, article or apparatus that includes the element.

Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned reality Example is applied the utility model is described in detail, those skilled in the art should understand that: it still can be to preceding Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these It modifies or replaces, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution It encloses.

Claims (4)

1. a kind of fuel filter, it is characterised in that: including shell, filter core is installed in the shell, the shell and Fuel gallery is formed between filter core, the upper end of the shell is equipped with upper cover, is provided with fuel inlet and combustion on the upper lid Oil export, the fuel inlet are connected to fuel gallery, are connected to inside the fuel outlet and filter core；The shell is Double-layer structure, including inner housing and outer housing, the inner housing are the tubular structure of upper and lower opening, and the outer housing is upper The barrel-like structure of end opening lower end closed, the lower end of the outer housing are provided with annular identical with inner housing lower end size and insert The lower end in hole, the inner housing is inserted into circumferential rebate, the inwardly projecting formation interconnecting piece in the upper end of the outer housing, the company Socket part is annular, the upper-end contact of the interconnecting piece and inner housing；The side wall of the inner housing outwardly protrude to be formed it is several convex Portion out, the outermost end of the protrusion and the inner wall contact of outer housing, the inner wall of the inner housing are formed at lug position Groove is equipped with several magnet blocks on the inner wall of the protrusion.

2. a kind of fuel filter according to claim 1, it is characterised in that: the protrusion is arc, the magnetic The arcuation that the inner wall of iron block is and protrusion inner wall agrees with, the inner wall of the magnet block insertion protrusion, and magnet block is interior Wall is concordant with the inner wall of protrusion.

3. a kind of fuel filter according to claim 1, it is characterised in that: the lower end of the inner housing and circumferential rebate Between the first sealing ring is installed, the second sealing ring is installed between the upper end and interconnecting piece of the inner housing.

4. a kind of fuel filter according to claim 1, it is characterised in that: be provided with circle on the bottom surface of the outer housing The bottom surface of the groove of shape, the groove and outer housing is concentric, and the diameter of the groove is greater than the outer diameter of circumferential rebate, described Groove in bottom cover is installed.