CN106362460B - The detachable rotary filter of modified and its method for filtering fluid - Google Patents

The detachable rotary filter of modified and its method for filtering fluid Download PDF

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Publication number
CN106362460B
CN106362460B CN201610901083.0A CN201610901083A CN106362460B CN 106362460 B CN106362460 B CN 106362460B CN 201610901083 A CN201610901083 A CN 201610901083A CN 106362460 B CN106362460 B CN 106362460B
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China
Prior art keywords
cylinder
filter
coupling head
filter core
centre bore
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CN106362460A (en
Inventor
李建灵
李建忠
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SHANGHAI LANGJING FLUID TECHNOLOGY Ltd
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SHANGHAI LANGJING FLUID TECHNOLOGY Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/147Bypass or safety valves

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
  • Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)

Abstract

The present invention relates to a kind of detachable rotary filters of modified, including filter housing, coupling head, filter core and by-passing valve, a gasket is equipped between the coupling head and filter housing, the section of the coupling head is T-shaped, including being set to the first cylinder of top and set on the second cylinder of lower section, the outer diameter of first cylinder is greater than the outer diameter of the second cylinder, the center of the coupling head is equipped with a centre bore, the middle and lower part of centre bore is equipped with the by-passing valve, first cylinder is vertically equipped with several fuel feed holes, the fuel feed hole is set to the outside surrounding of centre bore, the transverse direction of second cylinder is equipped with several through-holes, the through-hole is communicated with centre bore, second cylinder extends to the middle and lower part of filter housing, the filter core includes filter material and end cap, the center of the filter core is equipped with an inner hole, and it is set on the second cylinder by the inner hole.Using the above structure, installation and removal are convenient.The invention also discloses the method for the rotation filter filtering fluid, overcurrent effect is good.

Description

The detachable rotary filter of modified and its method for filtering fluid
Technical field
The invention belongs to art of filters, are about a kind of detachable rotary filter of modified and its mistake specifically The method for filtering fluid.
Background technique
Rotary filter is grown up nineteen seventies using filter paper as the filter kind of filter material, rotary filter Clear device is compact-sized, light-weight, and using reliable, maintenance is convenient, is widely used in engine and hydraulic system.According to existing There is data incomplete statistics, it is more than 90% that rotary filter is used in automobile engine, and spinning is used on engineering machinery engine Filter is also above 80%.
But rotary filter also has apparent defect, as shown in Figure 1, rotary filter generally includes sealing ring 1, threaded cap Plate 2, filter housing 3, filter core 4 and spring 5, the filter core 4 include inner frame 42, by-passing valve 43, filter material 41 and end cap 44, these zero Part is all to connect into an entirety by riveting, welding, cementing mode.When filter core 4 blocks, rotary filter must integrally more It changes, is replaced the other components that originally can be continued to use in addition to filter material 41 also, cause greatly to waste, meanwhile, filter housing 3 Interior federation remains the medium filtered, pollutes the environment after discarded.
To solve the above-mentioned problems, Chinese patent CN2051117442U discloses a kind of detachable rotary filter, including Filter housing 10, gasket 11, coupling head 12 and the filter core 13 set on 12 lower section of coupling head, the gasket 11 are crushed on coupling head 12 Between filter housing 10, coupling head 12 and filter housing 10 are connected through a screw thread, and are equipped with several fuel feed holes 14, center in the coupling head 12 It is then equipped with a centre bore 15, the two sides of the centre bore 15 are respectively provided with a counterbore 16, and two counterbores 16 are symmetrical arranged and and centre bore 15 communicate, and a by-passing valve 20 are equipped in the counterbore 16, the filter core 13 includes end cap 131 and filter material 132, and passes through end cap Screw thread on 131 is connect with coupling head 12, and the center of the filter core 13 is equipped with an inner hole 133, and an inner frame 17 is arranged in connection In first 12 centre bore 15 and the inner hole 133 of filter core 13.However there are the following problems for the patent:
1, its installation and removal is inconvenient, when filter element replacing, needs first to back out filter core 13 from coupling head 12, if interior When having pollutant on skeleton 17, it is also necessary to remove inner frame 17 and clean;When installation, need inner frame 17 being inserted into connection First 12 centre bore 15, then filter core 13 is entangled into inner frame 17, and will be on the screw thread and coupling head 12 on the end cap of filter core 13 131 Screw thread tighten, it is complicated entirely to mount and dismount process;
2, since by-passing valve is arranged in the counterbore 16 of coupling head 12, cause the volume of by-passing valve less than normal, overcurrent effect is not Enough ideals.
Therefore, it is necessary to design, a kind of overcurrent effect is good, mounts and dismounts convenient rotary filter.
Summary of the invention
The object of the present invention is to provide a kind of detachable rotary filters of modified, to solve existing rotary filter installation Inconvenient problem.
To achieve the above object, the invention adopts the following technical scheme:
A kind of detachable rotary filter of modified, including filter housing, coupling head, filter core and by-passing valve, the coupling head and A gasket is equipped between filter housing, coupling head and filter housing, which pass through, is threadedly engaged connection,
The section of the coupling head is T-shaped, described including being set to the first cylinder of top and set on the second cylinder of lower section The outer diameter of first cylinder is greater than the outer diameter of the second cylinder, and the center of the coupling head is equipped with a centre bore, in the centre bore Lower part is equipped with the by-passing valve, and first cylinder is vertically equipped with several fuel feed holes, and the fuel feed hole is set to centre bore Outside surrounding, be provided with several through-holes in the transverse direction of second cylinder, and the through-hole is communicated with the centre bore of coupling head, Second cylinder of the coupling head extends to the middle and lower part of filter housing, and the filter core includes filter material and end cap, and the center of the filter core is set There is an inner hole, and is set on the second cylinder of the coupling head by the inner hole.
According to the present invention, the by-passing valve includes the spring base being successively arranged from top to bottom, spring, valve deck and valve seat, institute It states spring and valve deck is pressed in the centre bore of coupling head by valve seat and spring base, the valve seat is equipped with two or more buckles, The buckle of the valve seat is fastened and connected with the through-hole on the second cylinder, and the inner wall of second cylinder is equipped with a limiting section, The spring base under active force, is resisted against on the limiting section of the second cylinder in spring.
Further, the cross section of the through-hole on second cylinder is rectangular, is connected convenient for fixing with the buckle on valve seat It connects.
Further, the limiting section is the annular boss of the inside bending formation of inner wall of the second cylinder.
Preferably, the buckle of the valve seat and the through-hole of the bottom of the second cylinder are fastened and connected
According to the present invention, it is respectively provided with an O-ring above and below the filter core, is tightly connected by O-ring, filter core Top is set on the second cylinder, is set on valve seat below filter core.
According to the present invention, the end cap of the filter core and filter material are by being bonded, and filter core made of bonding is non-disconnectable The overall structure divided.
According to the present invention, the bottom of the filter housing is equipped with a detector.
Further, the detector is pressure gauge or signalling generator.
A method of fluid being filtered using rotary filter of the present invention, is included the following steps:
Fluid enters the cavity between filter housing and filter core from the fuel feed hole of coupling head, after filter element filtering, passes through coupling head The second cylinder on through-hole enter in the centre bore of coupling head, then again from centre bore flow out.
Further, when filter core blocks, and the intracorporal pressure of chamber reaches the maximum pressure value of spring receiving, in valve deck pressure-bearing Row and compressed spring are opened so that valve deck and valve seat abut the sealing surface formed, and fluid flows into the centre bore of coupling head, reaches The function of bypass.
The detachable rotary filter of modified of the invention, the beneficial effect is that:
1, its is ingenious in design, both economically and environmentally beneficial: changing that traditional rotary filter is non-dismountable and then integral replacing Drawback, the detachable rotary filter of modified is due to detachable, and filter core blocking only needs to change filter core when safeguarding, other parts are not required to Replacement, reduces use cost, and the recycling moreover, the part scrapped can all classify is both economically and environmentally beneficial.
2, coupling head acts as the skeleton of filter core, and filter core itself does not have skeleton, and without being individually arranged again inside filter core Inner frame, when installation, it is only necessary to filter core is set in coupling head, when replacement, also only needs directly to remove filter core, So that filter core installation and removal are convenient;Simultaneously as coupling head is reusable, conventional bowl skeleton also can be avoided with filter The mode that core is replaced together, therefore also have huge economic benefit.
3, the rotary filter of comparable size, by-passing valve filter area of the invention are existing single by-passing valve areas 4 times, oil flow resistance when this can greatly improve bypass flow and reduce bypass, so that filter effect when bypass of fluid It greatly improves.
4, the processing and fabricating of modified coupling head is simpler, and materials more save, and entire cost is existing 50% or so.Specifically Be embodied in: modified rotary filter is changed into bypass valve position in coupling head centre bore, is utilized in filter well Some spaces avoid the drawbacks of existing rotary filter thickeies coupling head top due to by-passing valve, keep coupling head smaller Ingeniously, it reduces the size of entire rotary filter also, saves space and save material, there is good economic benefit.
5, the by-passing valve assembly of modified rotary filter is simpler, and use is more reliable;
6, modified filter core upper and lower ends lid is the same, than the existing all simple material-saving of end cap up and down, existing filter core it is upper End cap has screw thread, and processing is complicated, at high cost, and the entire cost of manufacture of modified filter core saves 30% or so than prototype filter core;
7, the setting of detector precisely prompting changing filter core, breakthrough engine can lean on the fuzzy control of mileage and time Method is conducive to the good operating condition for ensureing engine.
8, since the model of rotary filter is many and diverse, the rotary filter that detachable structure can allow outer dimension to be closer to The unified filter core using same specification, can greatly reduce the specification kind of filter core, be conducive to unified filter core model and professional standard.
Detailed description of the invention
Fig. 1 is the cross-sectional view of existing rotary filter;
Fig. 2 is the cross-sectional view of existing detachable rotary filter;
Fig. 3 is the cross-sectional view of the detachable rotary filter of modified of the invention.
Fig. 4 is the structural schematic diagram of coupling head of the invention.
Fig. 5 is the structural schematic diagram of by-passing valve of the invention.
Specific embodiment
Below in conjunction with specific attached drawing, the detachable rotary filter of improvement of the present invention type and its method for filtering fluid are made It is further described.
It as shown in Figure 3 and Figure 4, is the detachable rotary filter of a modification of the present invention type, including filter housing 5, coupling head 6, filter core 7 and by-passing valve 8 are equipped with a gasket 91 between the coupling head 6 and filter housing 5, and coupling head 6 and filter housing 5 pass through spiral shell Line is cooperatively connected,
The section of the coupling head 6 is T-shaped, including being set to the first cylinder 61 of top and set on the second cylinder of lower section 62, the outer diameter of first cylinder 61 is greater than the outer diameter of the second cylinder 62, and the center of the coupling head 6 is equipped with a centre bore 63, The middle and lower part of the centre bore 63 is equipped with the by-passing valve, the first cylinder 61 of the coupling head 6 it is vertical equipped with it is several into Oilhole 611, and the fuel feed hole 611 is in the outside surrounding of centre bore 63, the transverse direction of the second cylinder 62 of the coupling head 6 Several through-holes 621 are arranged at intervals with, and the through-hole 621 is communicated with the centre bore 63 of coupling head 6, the second of the coupling head 6 Cylinder 62 extends to the middle and lower part of filter housing 5, and the filter core 7 includes filter material 71 and end cap 72, and the center of the filter core 7 is equipped in one Hole, and be set on the second cylinder 62 of the coupling head 6 by the inner hole.
As shown in figure 5, the by-passing valve 8 includes spring base 81, spring 82, valve deck 83 and the valve being successively arranged from top to bottom Seat 84, the spring 82 and valve deck 83 are pressed in the centre bore 63 of coupling head 6 by valve seat 84 and spring base 81, on the valve seat 84 Equipped with two or more buckles 841, the buckle 841 of the valve seat 84 is fastened and connected with the through-hole 621 on the second cylinder 62, preferably , the buckle 841 of the valve seat 84 and the through-hole 621 of the bottom of the second cylinder 62 are fastened and connected, second cylinder 62 Inner wall is equipped with a limiting section 622, and the spring base 81 under active force, is resisted against the limit of the second cylinder 62 in spring 82 In position portion 622.
The cross section of through-hole 621 on second cylinder 62 be it is rectangular, convenient for the buckle 841 on valve seat 84 is fixed connects It connects.
The limiting section 622 is the annular boss that the inside bending of inner wall of the second cylinder 62 is formed.
It is respectively provided with an O-ring 92 above and below the filter core 7, is tightly connected by O-ring 92, the top of filter core 7 It is set on the second cylinder 62, the lower section of filter core 7 is set on valve seat 84.
The end cap 72 and filter material 71 of the filter core 7 are by the way that made of bonding, filter core made of bonding be can not be split Overall structure.
The bottom of the filter housing 5 is equipped with a detector 93, and the detector 93 is pressure gauge or signalling generator.
As shown in figure 3, the filled arrows in figure represent filtered fluid, hollow arrow is represented after filter element filtering Fluid.
When the rotary filter of the present embodiment filters fluid, include the following steps:
Fluid enters the cavity between filter housing 5 and filter core 7 from the fuel feed hole 611 of coupling head 6, after the filtering of filter core 7, passes through Through-hole 621 on second cylinder 62 of coupling head 6 enters in the centre bore 63 of coupling head 6, then flows out (such as from centre bore 63 again Position and direction shown in hollow arrow in figure).
Further, when the blocking of filter core 7, the setting value of pressure rise to detector 93, without replacing filter core 7 in time, Pressure continues to increase, when reaching the maximum pressure value of the receiving of spring 82,83 pressure-bearing uplink of valve deck and compressed spring 82, so that valve deck 83 and valve seat 84 against formed sealing surface be opened, fluid flow into coupling head 6 centre bore 63, reached bypass function.
It is constantly blocked when filter core 7 is contaminated object, the pressure of the cavity between filter housing 5 and filter core 7 constantly increases, when pressure reaches To signalling generator setting or pressure gauge show pressure reach certain value when, prompt filter core 7 need replacing.It shuts down at this time, first Rotary filter is backed out from host, then filter housing 5 and coupling head 6 are unscrewed, and filter core 7 is pulled up from coupling head 6, if connection When having pollutant on first 6 the second cylinder 62, can first it be cleaned;Then, new filter core 7 is set in the second of coupling head 6 On cylinder 62;Then gasket 91 is placed between filter housing 5 and coupling head 6, then filter housing 5 and coupling head 6 is tightened;Finally, By the centre bore screw thread of coupling head 6 in rotary filter entirety spinning to host, entire filter core 7 more changes jobs completion.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention.These improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (8)

1. a kind of detachable rotary filter of modified, including filter housing, coupling head, filter core and by-passing valve, the coupling head and filter A gasket, the coupling head and filter housing are equipped between shell by being threadedly engaged connection, which is characterized in that
The section of the coupling head is T-shaped, including being set to the first cylinder of top and set on the second cylinder of lower section, described first The outer diameter of cylinder is greater than the outer diameter of the second cylinder, and the center of the coupling head is equipped with a centre bore, the middle and lower part of the centre bore Equipped with the by-passing valve, first cylinder is vertically equipped with several fuel feed holes, and the fuel feed hole is set to the outer of centre bore Side surrounding is provided with several through-holes in the transverse direction of second cylinder, and the through-hole is communicated with the centre bore of coupling head, described Second cylinder extends to the middle and lower part of filter housing, and the filter core includes filter material and end cap, and the center of the filter core is equipped with an inner hole, and leads to The inner hole is crossed to be set on second cylinder,
The by-passing valve includes the spring base being successively arranged from top to bottom, spring, valve deck and valve seat, and the spring and valve deck are by valve Seat and spring base be pressed in the centre bore of coupling head, the valve seat be equipped with two or more buckles, the buckle of the valve seat with Through-hole on second cylinder is fastened and connected, and the inner wall of second cylinder is equipped with a limiting section, and the spring base is by spring For contact on the limiting section of the second cylinder, the end cap and filter material of the filter core are by being bonded.
2. the detachable rotary filter of modified as described in claim 1, which is characterized in that the through-hole on second cylinder Cross section be it is rectangular.
3. the detachable rotary filter of modified as described in claim 1, which is characterized in that the limiting section is the second cylinder The annular boss that is formed of the inside bending of inner wall.
4. the detachable rotary filter of modified as described in claim 1, which is characterized in that the buckle of the valve seat and second The through-hole of the bottom of cylinder is fastened and connected.
5. the detachable rotary filter of modified as described in claim 1, which is characterized in that above and below the filter core It is respectively provided with an O-ring, is tightly connected by O-ring, is set in above filter core on the second cylinder, valve is set in below filter core On seat.
6. the detachable rotary filter of modified as described in any one in claim 1-5, which is characterized in that the bottom of the filter housing Portion is equipped with a detector.
7. a kind of method of rotary filter filtering fluid as described in any one of claims 1 to 6, which is characterized in that fluid Enter the cavity between filter housing and filter core from the fuel feed hole of coupling head, after filter element filtering, on the second cylinder of coupling head Through-hole enter in the centre bore of coupling head, then again from centre bore flow out.
8. the method for rotary filter filtering fluid as claimed in claim 7, which is characterized in that when filter core blocks, in cavity Pressure when reaching the maximum pressure value of spring receiving, valve deck pressure-bearing uplink and compressed spring, so that valve deck and valve seat abut shape At sealing surface be opened, fluid flow into coupling head centre bore, reached bypass function.
CN201610901083.0A 2016-10-17 2016-10-17 The detachable rotary filter of modified and its method for filtering fluid Active CN106362460B (en)

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CN106362460B true CN106362460B (en) 2019-06-18

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101699042A (en) * 2007-07-23 2010-04-28 北京世珍一诺科技有限公司 Combined type oil filter
CN204342739U (en) * 2015-01-05 2015-05-20 青岛澳波环保科技有限责任公司 A kind of oiling machine reverse oil filter purifier
CN105257366A (en) * 2015-11-12 2016-01-20 上海朗境流体技术有限公司 Detachable rotatably-mounted filter and fluid filtering method thereof
CN206198805U (en) * 2016-10-17 2017-05-31 上海朗境流体技术有限公司 The detachable rotary filter of modified

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09136003A (en) * 1995-11-14 1997-05-27 Toyo Roki Seizo Kk Safety valve device of liquid filter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101699042A (en) * 2007-07-23 2010-04-28 北京世珍一诺科技有限公司 Combined type oil filter
CN204342739U (en) * 2015-01-05 2015-05-20 青岛澳波环保科技有限责任公司 A kind of oiling machine reverse oil filter purifier
CN105257366A (en) * 2015-11-12 2016-01-20 上海朗境流体技术有限公司 Detachable rotatably-mounted filter and fluid filtering method thereof
CN206198805U (en) * 2016-10-17 2017-05-31 上海朗境流体技术有限公司 The detachable rotary filter of modified

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