CN207332976U - A kind of oil filter - Google Patents

Abstract

The utility model discloses a kind of oil filter, filter core including housing, in housing and the end cap for closing housing, fuel feed hole and oil outlet are provided with end cap, the non-return sealing ring for closing fuel feed hole is provided with housing, filter core is provided with the extension connected with oil outlet by the side of the end cap, extension side is provided with shrapnel, and shrapnel side by non-return sealing ring formed with for pushing against end cap so as to close the lug boss of fuel feed hole.This programme uses new mechanical structure.The utility model has the following advantages and effect：When engine oil flow causes impact to non-return sealing ring, non-return sealing ring and shrapnel stress bend, and machine oil can be entered in housing.When being acted on without oil strain, when the oil pressure in housing is excessive, since shrapnel covers non-return sealing ring, machine oil can give the effect of shrapnel power, and the structural strength of shrapnel is big, be not susceptible to bend, stably keep the abutting to non-return sealing ring to act on, prevent machine oil from flowing back.

Description

A kind of oil filter

Technical field

The filter element of automobile engine oil is the utility model is related to, more particularly to a kind of oil filter.

Background technology

Filter, refers to the accessory for playing impurity screening or gas by filter paper.Generally refer to automobile filter, It is to start car accessory.It is divided into by different filtering functions:Oil filter, fuel filter (gasoline filter, diesel fuel filter, Oil water separator, hydraulic filter), air cleaner, air-conditioning filter cleaner etc..Medium in oil filter burden lubricating system Filtering.In engine working process, the carbon distribution and gelatinous precipitate that are aoxidized under metal filings, dust, high temperature, water etc. are constantly mixed Enter lubricating oil, oil filter is located in engine lubrication system, its upstream is lubricating oil pump, and downstream is to need to moisten in engine Sliding each parts, it is exactly the mechanical admixture and colloid that filter in machine oil that it, which is acted on, protects oily cleaning to be lubricated, extend these zero The service life of component.Oil filter should be strong with filtering ability, and circulating resistance is small, the performance such as service life length.

Notification number is CN202181933U, and the day for announcing is the Chinese patent oil filter of 2012.04.04, its filter Lid sets non-return sealing ring, when machine oil is entered in filter by fuel feed hole, the impact force of machine oil close to the side of filter core By the open-top realization of non-return sealing ring and the separation of strainer cover, machine oil can be by the way that when from the active force of machine oil, non-return is close Seal is pushed against on strainer cover, prevents from entering the phenomenon that the machine oil in filter produces reflux.

In above-mentioned scheme, non-return sealing ring is soft materials, when the machine oil inside filter is sealed for non-return When the active force of circle is larger, non-return sealing ring can deform upon, it is impossible to completely close fuel feed hole, the prior art has improvement Place.

Utility model content

The purpose of this utility model is to provide a kind of oil filter, when working without oil strain with good non-return Effect.

The above-mentioned technical purpose of the utility model technical scheme is that：A kind of oil filter, Filter core including housing, in housing and the end cap for closing housing, fuel feed hole and fuel-displaced is provided with the end cap Hole, the non-return sealing ring for closing the fuel feed hole is provided with the housing, and the filter core is set by the side of the end cap Be equipped with the extension connected with the oil outlet, the extension side is provided with shrapnel, the shrapnel side formed with for The non-return sealing ring is pushed against into the end cap so as to close the lug boss of fuel feed hole.

By using above-mentioned technical proposal, the shrapnel set on extension is supported the side of non-return sealing ring by lug boss Tightly in end cap, realize the sealing process to fuel feed hole, when engine oil flow to non-return sealing ring cause impact when, non-return sealing ring with And shrapnel stress bends, no longer fuel feed hole is closed, machine oil can be entered in housing.When being acted on without oil strain, When the oil pressure in housing is excessive, since shrapnel covers non-return sealing ring, machine oil can give the effect of shrapnel power, for only It is smaller to return the active force of sealing ring, and the structural strength of shrapnel is larger, is not susceptible to bend, and can stably keep close to non-return The abutting effect of seal, realizes the fixation to non-return sealing ring, prevents machine oil from flowing back.

The utility model is further arranged to：The non-return sealing ring is included positioned at the mounting portion at middle part and positioned at installation The sealing of portion side, the mounting portion are in the arc shape of end cap side protrusion, radial direction of the sealing along the housing Extension, the lug boss contact at the sealing.

By using above-mentioned technical proposal, mounting portion take on auspicious omen end cap side protrusion arc shape, mounting portion can be stably It is pushed against on end cap, fuel feed hole and oil outlet is isolated, lifts oil filter effect.Sealing is radially extended along housing, convex Sealing can be stably pushed against on end cap under the action of the portion of rising, and during oil strain, sealing is subject to the active force of machine oil Stablize, can easily be rushed to open, pass through easy to machine oil.

The utility model is further arranged to：The one end of the extension away from the filter core, which is provided with, to be used for the peace Dress portion is pushed against in the bulge loop of the end cap.

By using above-mentioned technical proposal, mounting portion is pushed against on end cap by the bulge loop set on extension, lifting extension Sealing performance between pipe and end cap, keeps the stability isolated between fuel feed hole and oil outlet, keeps good filter effect.

The utility model is further arranged to：The shrapnel is connected to the one end of the bulge loop away from the extension, institute Shrapnel, the bulge loop and the extension integrated punching is stated to be formed.

By using above-mentioned technical proposal, shrapnel is connected to the one end of bulge loop away from extension, i.e., bulge loop be located at shrapnel and Between extension, can easily carry out punch forming, lift processing efficiency, and good airproof performance, can stably realize into Separation between oilhole and oil outlet.

The utility model is further arranged to：The housing central section is provided with the central tube for being used to support the filter core, institute State and connected between filter core and the extension by extended loop, the central tube is connected to the extended loop.

By using above-mentioned technical proposal, central tube is used to be supported filter core effect, lifts the stability of filter core.Prolong Ring connection filter core and extension are stretched, is realized to realizing that filtered machine oil will not to the isolation on the inside of filter core and on the outside of filter core Enter on the inside of filter core, lift the filter effect of machine oil.Connecting tube is connected on central tube, for lifting the stabilization of central tube Property, stably supporting role can be kept.

The utility model is further arranged to：Support spring is arranged with outside the extension, described support spring one end is supported Touch in the shrapnel, the other end contacts at the extended loop.

By using above-mentioned technical proposal, support spring is sheathed on extension, realizes the supporting role to shrapnel, lifts bullet Piece supports the effect of non-return sealing ring, is not likely to produce backflow phenomenon.

The utility model is further arranged to：The one end of the filter core away from the extension is provided with diaphragm seal, described Central tube is connected to the diaphragm seal, and the spring support for being used to support the diaphragm seal is provided with the housing.

By using above-mentioned technical proposal, the diaphragm seal set on filter core is used for realization the sealing function to filter core, realizes Filter core inside is isolated with exterior, exterior machine oil must can just enter filter core via filtering, lift the filtering to machine oil Effect.Central tube is connected on diaphragm seal, lifts the stability of central tube, can stably realize the supporting role to filter core. The spring support set on housing is used to that diaphragm seal dipping can be supported, i.e., effect is supported to filter core, is combined with shrapnel, real Now the position of filter core is fixed, lifts the stability of filter core.

The utility model is further arranged to：Spout hole is provided with the diaphragm seal, slides and sets in the central tube It is useful for closing the sheet rubber of the spout hole, side of the diaphragm seal away from the central tube is provided with limit spring, institute State and the grab that hook makes the sheet rubber push against the diaphragm seal arranged on the limit spring is provided with sheet rubber.

By using above-mentioned technical proposal, sheet rubber is connected in limit spring under the action of grab, passes through sheet rubber Spout hole is blocked, thus allows for stable filtration.When the pressure that machine oil is entered in housing is excessive, filter Core cannot be filtered in time, and sheet rubber is subject to larger active force at this time, be realized under the action of grab to limit spring Compression, sheet rubber are separated with diaphragm seal, and machine oil is entered inside filter core by spout hole, is then discharged out, and lifts the discharge of machine oil Efficiency, keeps the pressure balance inside and outside filter core, does not easily lead to the damage of filter core.

The utility model is further arranged to：The one end of the end cap away from the housing is formed with annular groove, the ring Rubber seal is embedded with shape groove.

By using above-mentioned technical proposal, sealing ring, the stability of sealing ring are embedded with the annular groove set on end cap It is higher, when mounted can lift-off seal effect, leakage is not likely to produce during oil inlet.

The utility model is further arranged to：Internal thread is provided with the extension.

By using above-mentioned technical proposal, internal thread is set in extension, for being attached effect when mounted, lifting The convenient degree of connection, and the good airproof performance after the completion of connection, are not likely to produce leakage during fuel-displaced.

In conclusion the utility model has the advantages that：One end of filter core sets extended loop, is used for realization filter core Connection between extension, and non-return sealing ring is pushed against on end cap in the effect of shrapnel, realize the isolation to machine oil, The other end realizes sealing process by diaphragm seal, realizes the isolation to machine oil, enters filtering of the machine oil in housing through filter core It could export, lift the filter effect to machine oil.And combined by shrapnel and the spring support being connected on diaphragm seal, realization pair The position of filter core is fixed, so that the filtration stablized.

The spout hole set on diaphragm seal is closed by sheet rubber, and limit spring is combined under the action of hook Effect can keep good sealing effectiveness, when the machine oil outside filter core gives diaphragm seal excessive active force, spacing bullet Spring compresses so that sheet rubber is separated with diaphragm seal, and machine oil can be entered inside filter core and discharged again by oil outlet, keep filter core Inside and outside pressure balance, do not easily lead to the damage of filter core.

Brief description of the drawings

Fig. 1 is the external structure schematic diagram of filter；

Fig. 2 is the sectional view of filter；

Fig. 3 is the graph of a relation between end cap, shrapnel and non-return sealing ring；

Fig. 4 is the structure chart of sheet rubber and diaphragm seal.

In figure：1st, housing；2nd, filter core；3rd, end cap；4th, fuel feed hole；5th, oil outlet；6th, non-return sealing ring；61st, mounting portion； 62nd, sealing；7th, extension；8th, shrapnel；9th, lug boss；10th, bulge loop；11st, central tube；12nd, extended loop；13rd, support spring； 14th, diaphragm seal；15th, spring support；16th, spout hole；17th, sheet rubber；18th, limit spring；19th, grab；20th, annular groove；21st, rubber Sealing ring；22nd, internal thread.

Embodiment

The utility model is described in further detail below in conjunction with attached drawing.

A kind of oil filter, as depicted in figs. 1 and 2, including housing 1, be installed on 1 inner filter core 2 of housing and be used for The end cap 3 of housing 1 to be closed, fuel feed hole 4 and oil outlet 5 are provided with end cap 3, machine oil is entered in housing 1 by fuel feed hole 4, Filtering through filter core 2, then discharged by oil outlet 5, the impurity in machine oil is removed.Be additionally provided with housing 1 for close into The non-return sealing ring 6 of oilhole 4, when needing to carry out filtration, exterior machine oil gives the effect of 6 power of non-return sealing ring, only Return sealing ring 6 to deform upon, machine oil can be by the way that when that need not carry out filtration, machine oil stops flowing, non-return sealing ring 6 can reset, and fuel feed hole 4 is closed, prevents machine oil from flowing back.

As shown in Fig. 2, filter core 2 is provided with extended loop 12, side of the extended loop 12 away from filter core 2 by one end of proximal cover 3 Extension 7 is welded with, extension 7 is connected with oil outlet 5, and shrapnel 8 is provided with extension 7, and shrapnel 8 is stainless steel Matter, and realize that the pressure holding to non-return sealing ring 6 is made under the action of lug boss 9 formed with lug boss 9 in the side of shrapnel 8 With so that non-return sealing ring 6 can be stably pushed against on end cap 3, realize the sealing process to fuel feed hole 4.Machine oil occurs back During stream, the effect of 8 power of shrapnel can be given, and will not be acted directly on non-return sealing ring 6, due to the structural strength of shrapnel 8 Larger, high stability, shrapnel 8 is not susceptible to deformation, and stably non-return sealing ring 6 can be pushed against on end cap 3, realization pair The closing of fuel feed hole 4, will not organic oil flowed out from fuel feed hole 4.

The one end of extension 7 away from filter core 2 is provided with bulge loop 10, by non-return sealing ring 6 under the action of bulge loop 10 Side is pushed against in end cap 3, will not directly be passed through so as to fulfill to the isolation between fuel feed hole 4 and oil outlet 5, filtered machine oil Oil outlet 5 is discharged.

Shrapnel 8 is located at the one end of bulge loop 10 away from extension 7, and 7 integrated punching of shrapnel 8, bulge loop 10 and extension Formed, it is easy to process, and can be to isolating between filtered machine oil and filtered machine oil, lift-off seal Energy.

As shown in Fig. 2, being arranged with support spring 13 outside extension 7,13 one end of support spring contradicts shrapnel 8, and the other end supports Extended loop 12 is touched, the supporting role to shrapnel 8 is realized under the action of support spring 13, lifting shrapnel 8 is to non-return sealing ring 6 Pressure holding effect.

As shown in figure 3, sealing 62 group of the non-return sealing ring 6 by 61 side of the mounting portion 61 positioned at middle part and mounting portion Into mounting portion 61 is in the arc shape protruded to 3 side of end cap, and mounting portion 61 can be contradicted easily with end cap 3, and is combined convex The effect of ring 10, keeps good sealing effectiveness.Sealing 62 is extended along the radial direction of housing 1, and lug boss 9 contacts at On sealing 62, by the closing being implemented in combination with to fuel feed hole 4 of sealing 62 and end cap 3, and since sealing 62 is along housing 1 Radial direction set so that in oil inlet, machine oil can be contacted stably with sealing 62,62 easy stress of sealing and with end cap 3 Separate, machine oil can be conveniently entered in housing 1.

As shown in Fig. 2, the one end of filter core 2 away from extension 7 is provided with diaphragm seal 14, machine oil cannot directly enter filter core In 2, spring support 15 is provided with housing 1, for being supported effect to diaphragm seal 14, filter core 2 is in spring support 15 and shrapnel 8 Effect is lower to keep stablizing, and can stably carry out filtration.The middle part of filter core 2 is additionally provided with central tube 11, realizes to filter core 2 Supporting role, filter core 2 is not susceptible to deformation when carrying out filtration, lifts the stability of filter core 2.One end of central tube 11 Diaphragm seal 14 is welded in, the other end is welded in extended loop 12, keeps the fixation of central tube 11.

As shown in figure 4, offering spout hole 16 on diaphragm seal 14, with reference to shown in Fig. 2, spout hole 16 connects with central tube 11 Logical, the diameter of spout hole 16 is less than the internal diameter of central tube 11, is slid in central tube 11 and is provided with sheet rubber 17, sheet rubber 17 Outside diameter is more than the diameter of spout hole 16, and sheet rubber 17 is provided with grab 19 close to the side of closure plate, and diaphragm seal 14 is away from center The side of pipe 11 sets limit spring 18, and hook hook is arranged in limit spring 18, and grab is given under the action of limit spring 18 The effect of 19 power, makes the abutting of sheet rubber 17 and diaphragm seal 14, realizes the sealing process to spout hole 16, can carry out normally mistake Filter work.When the speed of machine oil is excessive, the speed lifting of the filtering of filter core 2, the pressure difference increase inside and outside filter core 2, Easily lead to filter core 2 to damage, the pressure difference of 17 both sides of sheet rubber becomes larger at this time, and sheet rubber 17 is under the action of machine oil away from diaphragm seal 14, limit spring 18 is compressed, and machine oil can be entered the inside of filter core 2 and be discharged by spout hole 16, be realized to filter core 2 Overload protection, when the flow of machine oil tends to be normal, sheet rubber 17 can be still adjacent to close under the action of limit spring 18 The closing to spout hole 16 is realized on mounting 14.

As shown in Figures 2 and 3, the side away from housing 1 is provided with annular groove 20 on end cap 3, and in annular groove 20 Rubber seal 21 is embedded, filter can stably carry out sealing function when being installed, and machine oil is not easy to reveal.Extending Internal thread 22 is provided with pipe 7, for being threadedly coupled between external pipe, good sealing is kept, stably by machine Oil discharge.

Specific action process：Machine oil from oil inlet enter, non-return sealing ring 6 is caused to impact, make non-return sealing ring 6 and Shrapnel 8 deforms upon, and the not re-closed oil inlet of non-return sealing ring 6, machine oil is entered in housing 1, via the filtration of filter core 2 Enter inside filter core 2, then machine oil is exported by the oil outlet on extension 7 and end cap 3 again, realizes the mistake to machine oil Filter.When the flow rate of machine oil is larger, filter core 2 cannot form filtering in time, at this time the pressure difference of 21 both sides of rubber seal Larger, rubber seal 21 is separated with diaphragm seal 14, and machine oil is entered inside filter core 2 from spout hole 16 and is then discharged out, realization pair The protective effect of filter core 2.

When machine oil is without filtering, by lug boss 9 by the sealing 62 of non-return sealing ring 6 under the action of shrapnel 8 The refluence of machine oil will not be produced in end cap 3 by pushing against, and due to the effect of shrapnel 8, realize the stop to machine oil, machine oil will not be straight Connect and act on non-return sealing ring 6, stable sealing effect can be kept.

This specific embodiment is only explanation to the utility model, it is not the limitation to the utility model, ability Field technique personnel as needed can make the present embodiment the modification of no creative contribution after this specification is read, but As long as all protected in the right of the utility model be subject to Patent Law.

Claims (10)

1. a kind of oil filter, including housing (1), the filter core (2) in housing (1) and for closing housing (1) End cap (3), fuel feed hole (4) and oil outlet (5) are provided with the end cap (3), is provided with the housing (1) for closing institute State the non-return sealing ring (6) of fuel feed hole (4), it is characterised in that：The filter core (2) by the end cap (3) side be provided with The extension (7) of oil outlet (5) connection, extension (7) side is provided with shrapnel (8), shrapnel (8) side shape Into being useful for the non-return sealing ring (6) pushing against the end cap (3) so as to closing the lug boss (9) of fuel feed hole (4).

A kind of 2. oil filter according to claim 1, it is characterised in that：The non-return sealing ring (6) includes being located at The mounting portion (61) at middle part and the sealing (62) positioned at mounting portion (61) side, the mounting portion (61) are in end cap (3) The arc shape of side protrusion, sealing (62) the radially extending along the housing (1), the lug boss (9) contact at institute State sealing (62).

A kind of 3. oil filter according to claim 2, it is characterised in that：The extension (7) is away from the filter core (2) one end is provided with for pushing against the mounting portion (61) in the bulge loop (10) of the end cap (3).

A kind of 4. oil filter according to claim 3, it is characterised in that：The shrapnel (8) is connected to the bulge loop (10) one end away from the extension (7), the shrapnel (8), the bulge loop (10) and the extension (7) integrated punching Formed.

A kind of 5. oil filter according to claim 1, it is characterised in that：It is provided with and is used in the middle part of the housing (1) The central tube (11) of the filter core (2) is supported, is connected between the filter core (2) and the extension (7) by extended loop (12), The central tube (11) is connected to the extended loop (12).

A kind of 6. oil filter according to claim 5, it is characterised in that：Support is arranged with outside the extension (7) Spring (13), described support spring (13) one end contact at the shrapnel (8), and the other end contacts at the extended loop (12).

A kind of 7. oil filter according to claim 5, it is characterised in that：The filter core (2) is away from the extension (7) one end is provided with diaphragm seal (14), and the central tube (11) is connected to the diaphragm seal (14), is set on the housing (1) It is equipped with the spring support (15) for being used to support the diaphragm seal (14).

A kind of 8. oil filter according to claim 7, it is characterised in that：Overflow is provided with the diaphragm seal (14) Hole (16), the interior sliding of the central tube (11) are provided with the sheet rubber (17) for closing the spout hole (16), the sealing Side of the piece (14) away from the central tube (11) is provided with limit spring (18), and being provided with hook on the sheet rubber (17) is arranged on The limit spring (18) makes the grab (19) of the sheet rubber (17) the abutting diaphragm seal (14).

A kind of 9. oil filter according to claim 1, it is characterised in that：The end cap (3) is away from the housing (1) One end formed with annular groove (20), is embedded with rubber seal (21) in the annular groove (20).

A kind of 10. oil filter according to claim 1, it is characterised in that：Interior spiral shell is provided with the extension (7) Line (22).