CN208619254U - A kind of diesel fuel filter that impurity screening effect can be improved - Google Patents

Abstract

A kind of filter of the utility model, in particular to a kind of diesel fuel filter that impurity screening effect can be improved, the filter includes shell, linking cover, filter core, spring and magnet, cartridge filter side wall and bottom are provided with through-hole by the utility model, when diesel oil is flow to below cartridge filter, it remains to smoothly enter cartridge filter via the through-hole of cartridge filter bottom, so that the flowing of diesel oil is more smooth, and there is preferable filter effect.

Description

A kind of diesel fuel filter that impurity screening effect can be improved

Technical field

A kind of filter of the utility model, in particular to a kind of diesel fuel filter that impurity screening effect can be improved.

Background technique

As shown in Figure 1, diesel fuel filter, by the affixed linking cover 8 of 7 upper end opening of shell, 8 center of linking cover is downward Extend the first hole 81, to connect filter core 9, which is covered with the cartridge filter 91 of through-hole 911 by one side wall and is set around the mistake The filter paper 92 of the continuous corrugated of 91 outer rim of filter cylinder is formed, and the another linking cover 8 is equipped with most the in 81 side of the first hole Two holes 82.

In use, the diesel fuel filter system is installed on car engine shell, enable diesel oil by the second hole of the linking cover 8 82 flow into, and flow out after the filter paper 92 of filter core 9 and cartridge filter 91 filter, then by the first hole 81 of linking cover 8, complete filtering Movement.

Above-mentioned diesel fuel filter, cartridge filter 91 are only provided with through-hole 911 in side wall, and the bottom system of the cartridge filter 91 is in Sealing surface, and it is not provided with any through-hole.Therefore when diesel oil flow to 91 lower section of cartridge filter through the filter paper 92 of filter core 9, i.e., without Method smoothly enters cartridge filter 91, so that the flowing of diesel oil relatively has some setbacks, opposite causes filter effect to reduce.

Furthermore if relying only on filter paper 92 and the cartridge filter 91 of filter core 9 when having the impurity such as iron powder in diesel oil to filter, and it is big Partly 91 bottom of cartridge filter of known diesel fuel filter is equipped with relief valve 93, because flow velocity is slow when filter paper 92 filters, when automobile exists When running at high speed, the reason of because of filter paper 92, and diesel oil can not high-rate fitration, and passed through by 91 bottom relief valve 93 of cartridge filter, made It is absolutely not filtered at diesel oil directly by diesel fuel filter, or filter paper 92 is caused to block, and whole diesel oil are all by relief valve 93 By filter paper 92, and filter paper 92 impregnates blocking under diesel oil for a long time, is readily decomposed to paper fiber, passes through entrance via relief valve 93 Engine accumulates over a long period and causes serious carbon distribution in engine, is still unable to reach preferable filter effect.

Summary of the invention

To solve the above-mentioned problems, the utility model provides a kind of diesel fuel filter that impurity screening effect can be improved.

The technical solution that the utility model is taken to achieve the above object are as follows:

A kind of diesel fuel filter that impurity screening effect can be improved, the filter include shell, and the upper shell is formed One opening and a turning point；It is connected cover, punching press is downwardly extending the first hole in the shell, the linking cover center, the The inner wall outer rim in one hole forms flat wall plate face, and the linking cover is described separately in plural second hole of formation in the flat wall plate face It is connected cover outer rim and forms a holding part, is fastened on the turning point；Filter core, include cartridge filter, the side wall of the cartridge filter and Through plural through-hole is covered with, the space between the side wall of the cartridge filter and the inner wall of shell is less than the cartridge filter for bottom Space between bottom and the inner wall of shell；Bridging piece engages the cartridge filter, and the bridging piece includes connecting hole, connects In first hole of the linking cover；And spring, spring one end contact the center position of the cartridge filter bottom, separately One end contacts the outer casing bottom, and the central axis of the spring and the central axis in first hole are located on same axis.

As a further improvement, the first hole inner wall system has internal screw thread.

As a further improvement, the cartridge filter bottom system is in arc surfaced, planar, cone-shaped or inner concavity.

As a further improvement, the cartridge filter side wall and bottom outer-edge are coated with filter screen.

As a further improvement, the interior of shell is provided with magnet at cartridge filter lower section.

As a further improvement, the cartridge filter and its bottom are integrally formed or modular design.

Cartridge filter side wall and bottom are provided with through-hole by the utility model, when diesel oil is flow to below cartridge filter, are remained to Cartridge filter is smoothly entered via the through-hole of cartridge filter bottom, so that the flowing of diesel oil is more smooth, and there is preferably filtering Effect.

Detailed description of the invention

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

Fig. 2 is the utility model configuration schematic diagram.

Fig. 3 is the utility model assembling structure schematic diagram.

Fig. 4 is the utility model schematic cross-sectional view.

Fig. 5 is the schematic cross-sectional view of the utility model filtering and cylinder bottom modular design.

Specific embodiment

Specific embodiment of the present utility model is made a detailed explanation with reference to the accompanying drawing.

As in Figure 2-4, a kind of diesel fuel filter that impurity screening effect can be improved, the filter include shell 1, It is connected cover 2, filter core 3, spring 4 and magnet 5, wherein 1 system of shell is the opening-like hollow housing in a upper end, and the linking 2 system of cover is fixed in 1 upper end of shell, i.e., the linking cover 2 is with outer rim punching press bending rivet clasp in 1 upper end of shell.Make on shell 1 End forms turning point, fastens the holding part of 2 outer rim of linking cover formation.2 center of linking cover is simultaneously downwardly extending one Inner wall has the first hole 21. of internal screw thread 211

As shown in figure 4,2 structure of linking cover is initially formed the plate face of a more flat wall via bending, passed through in the plate face The second hole 22 is worn, sequentially center is bent to again and forms the first hole 21, that is to say, that forms the inner wall outer rim in the first hole 21 The plate face of a more flat wall is formed, which is separately equipped with most spaced second holes in 21 side of the first hole 22。

The filter core 3 is made of cartridge filter 31 and filter screen 32, which is the opening-like hollow in a upper end Body, the upper end is simultaneously connected with bridging piece 311, here, 311 center of bridging piece, which is folded upward to be formed, connects hole, 311 center of bridging piece It bends inwards and to form a level and inside contract section, support and the material for supporting the first hole 21 is thick, to be connected to using the bridging piece 311 First hole 21 of the linking cover 2.The 31 bottom system of cartridge filter be in cambered surface, 31 bottom curved arc of cartridge filter and make the cambered surface to shell Space is larger between 1 inner wall, and 31 top sidewall of cartridge filter forms vertical and makes the side wall between the inner wall of shell 1 Space is smaller.

The 31 bottom system of cartridge filter is only citing in cambered surface, in some state sample implementations, the 31 bottom system of cartridge filter It can be in plane, cone-shaped or inner concavity.

31 side wall of cartridge filter and bottom, which are equidistantly run through, is covered with through-hole 312, and 31 bottom of cartridge filter and 1 bottom of shell are simultaneously Between be separated with a certain distance, in order to accommodate spring 4 and magnet 5.The filter screen 32 is coated on 31 side wall of cartridge filter and bottom Outer rim.Globoidal structure is formed by 31 bottom of cartridge filter, improves the effect for being covered with the quantity of through-hole 312, becomes 312 quantity of through-hole It is more, increase the quantity that diesel oil flows into.

31 side wall of cartridge filter and bottom, which are equidistantly run through, is covered with through-hole 312 only and is citing, in some state sample implementations, filtering 31 side walls of cylinder and bottom can non-equidistant through being covered with through-hole 312, also, in some state sample implementations, 31 side wall of cartridge filter can It is equidistant through being covered with through-hole 312, and 31 bottom of cartridge filter is non-equidistant through being covered with through-hole 312.Or it is, in some realities Apply in aspect, 31 side wall of cartridge filter can non-equidistant through being covered with through-hole 312, and 31 bottom of cartridge filter is equidistant through being covered with Through-hole 312

The spring 4 and 5 system of magnet are set to inside shell 1, and are located at below the filter core 3, which is a pressure Contracting spring is set between 3 bottom of filter core and 1 bottom of shell, can elasticity contact 3 bottom of filter core, make the filter core 3 generate The strength shifted up, and the filter core 3 can be made closely to be connected to the first hole 21 of the linking cover 2.Spring 4 is contacted in mistake The center position of 31 bottom cambered surface of filter cylinder, and the central axis of spring 4 and the central axis in the first hole 21 are located on same axis, with The structure consolidation of 4 end of spring against effect, provide upwards rebound compress cartridge filter 31, allow the opening of cartridge filter 31 be connected First hole 21 of cover 2 does not depart from, and avoids the problem that the influence of the factors such as vibration causes cartridge filter 31 to be detached from.By 31 bottom of cartridge filter Portion forms globoidal structure, provides spring 4 and conveniently compresses, while increasing the convenience of assembling.

The magnet 5 is fixed on 1 bottom of shell using gluing or the magnetic-adsorption of itself；

In use, the diesel fuel filter is installed on car engine shell, enable diesel oil by the second hole 22 of the linking cover 2 It flows into, is flowed out after the filter screen 32 of filter core 3 and cartridge filter 31 filter, then by the first hole 21 of linking cover 2, complete filtering Movement.

From the above, diesel oil by 31 bottom cambered surface of cartridge filter to shell 1 inner wall space, provide and accommodate more bavin Oil improves the efficiency used.

31 side wall of cartridge filter and bottom are provided with through-hole 312, therefore when diesel oil flow to 31 lower section of cartridge filter, still Cartridge filter 31 can be smoothly entered via the through-hole 312 of 31 bottom of filter screen 32 and cartridge filter, so that the flowing of diesel oil is more suitable Freely, there is preferable filter effect.

Furthermore the 31 bottom system of cartridge filter of this creation is in cambered surface, it also may make diesel oil flowing more smooth, and do not allow to tend to have Dead angle generates, and has preferable filter effect.

3 bottom of filter core is equipped with a magnet 5, can be used to adsorb iron powder, the impurity in diesel oil, and can reach preferably filtering effect Fruit.

As shown in figure 5, individual individual is formed on the bottom 313 of the cartridge filter 31, which utilizes combination It is connected to the cartridge filter 31, the cartridge filter 31 and its bottom 313 is made to form a modular design, and is different from above-described embodiment one Body formed design.

Claims (6)

1. a kind of diesel fuel filter that impurity screening effect can be improved, it is characterised in that: the filter includes shell, the shell Upper end forms an opening and a turning point；It is connected cover, in the shell, the linking cover center is downwardly extending for punching press One hole, the inner wall outer rim in the first hole form flat wall plate face, and the linking cover is separately in formation plural number second in the flat wall plate face Hole, the linking cover outer rim form a holding part, are fastened on the turning point；Filter core includes cartridge filter, the cartridge filter Through plural through-hole is covered with, the space between the side wall of the cartridge filter and the inner wall of shell is less than the mistake for side wall and bottom Space between the bottom of filter cylinder and the inner wall of shell；Bridging piece, engages the cartridge filter, and the bridging piece includes connecting Hole is connected to first hole of the linking cover；And spring, spring one end contact the center of the cartridge filter bottom Position, the other end contact the outer casing bottom, and the central axis of the spring and the central axis in first hole are located at same axis On.

2. a kind of diesel fuel filter that impurity screening effect can be improved according to claim 1, it is characterised in that: described One hole inner wall system has internal screw thread.

3. a kind of diesel fuel filter that impurity screening effect can be improved according to claim 1, it is characterised in that: the mistake Filter cylinder bottom system is in arc surfaced, planar, cone-shaped or inner concavity.

4. a kind of diesel fuel filter that impurity screening effect can be improved according to claim 1, it is characterised in that: the mistake Cartridge sidewall and bottom outer-edge are coated with filter screen.

5. a kind of diesel fuel filter that impurity screening effect can be improved according to claim 1, it is characterised in that: described outer Magnet is provided at cartridge filter lower section inside shell.

6. a kind of diesel fuel filter that impurity screening effect can be improved according to claim 1, it is characterised in that: the mistake Filter cylinder and its bottom are integrally formed or modular design.