CN104582906B - Dismounting filter instrument - Google Patents
Dismounting filter instrument Download PDFInfo
- Publication number
- CN104582906B CN104582906B CN201380004291.5A CN201380004291A CN104582906B CN 104582906 B CN104582906 B CN 104582906B CN 201380004291 A CN201380004291 A CN 201380004291A CN 104582906 B CN104582906 B CN 104582906B
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- CN
- China
- Prior art keywords
- filter element
- installation portion
- insertion section
- filter
- peristome
- Prior art date
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- 238000009434 installation Methods 0.000 claims abstract description 70
- 238000003780 insertion Methods 0.000 claims abstract description 50
- 239000011148 porous material Substances 0.000 claims abstract description 12
- 210000003414 Extremities Anatomy 0.000 claims abstract description 10
- 230000005489 elastic deformation Effects 0.000 claims abstract description 10
- 210000000707 Wrist Anatomy 0.000 claims description 45
- 239000000969 carrier Substances 0.000 claims description 18
- 239000012530 fluid Substances 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 42
- 239000004202 carbamide Substances 0.000 description 25
- 229960000539 carbamide Drugs 0.000 description 25
- 235000013877 carbamide Nutrition 0.000 description 25
- 239000007864 aqueous solution Substances 0.000 description 18
- 238000007906 compression Methods 0.000 description 13
- 238000007792 addition Methods 0.000 description 12
- 238000005452 bending Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000010531 catalytic reduction reaction Methods 0.000 description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitrogen oxide Substances O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 4
- 210000000245 Forearm Anatomy 0.000 description 3
- 210000001138 Tears Anatomy 0.000 description 3
- 108010066278 cabin-4 Proteins 0.000 description 3
- 238000006481 deamination reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000011068 load Methods 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- 210000002700 Urine Anatomy 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052813 nitrogen oxide Inorganic materials 0.000 description 2
- 239000003638 reducing agent Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000003305 oil spill Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
Abstract
The present invention provides a kind of dismounting filter instrument, it it is a kind of dismounting filter instrument (10) the cartridge filter filter element (92) being housed in this housing (91) disassembled through the peristome (91A) being arranged on housing (91), this dismounting filter instrument (10) has: installation portion (12), and it is provided with the threaded portion (12A) around the peristome (91A) being screwed on housing (91)；Insertion section (13), its cardinal extremity forms as one with installation portion (12), front end is free end, and, by screwing togather this installation portion (12), this front end is moved along the axis direction of filter element (92) and can be in the radially elastic deformation orthogonal with this axis direction, and along with screwing togather this installation portion (12), this insertion section (13) insert in the medium pore (92A) being arranged on filter element (92) from peristome (91A)；Holding section (14), it is arranged on the front end of insertion section (13), and utilizes the regulation amount of movement screwing togather installation portion (12) and produce to engage with filter element (92).
Description
Technical field
The present invention relates to dismounting filter instrument.
Background technology
In the past, as the exhaust gas post-treatment device of the aerofluxus of the internal combustion engines such as purification of diesel engine, known in there is catalysis also
The device of original device, this catalytic reduction device is using the ammonia that obtains from aqueous solution of urea as reducing agent.Aqueous solution of urea is from urine
Element tank pressure is transported to ejector, and at the upstream side of catalytic reduction device after ejector is ejected in exhaustor, profit
It is thermal decomposited with the heat of aerofluxus.Obtain ammonia by thermal decomposition, and this ammonia is supplied to catalytic reduction device to the row of purification
Nitrogen oxides in gas.
It addition, the aqueous solution of urea remained in carbamide water tank is carried by compression pump pressure.Compression pump except pump main body it
Outward, also there is the filter element of filter urea aqueous solution, house the housing with upper-part.It addition, screw togather in the bottom of housing
There is the cap of enclosed filters assembling and disassembling filter element peristome.
And, in compression pump as above, change in the case of filter element at needs, by by cap from housing
On disassemble and show lower openings portion, and from peristome insert special dismounting filter instrument and and filter element
Engaging, draws dismounting filter instrument downwards and is extracted out in housing by filter element.
It addition, for making the operation that dismounting filter instrument engages with filter element, due to dismounting filter instrument
The holding section of front end is inserted in housing, it is therefore desirable to carry out this operation when can't see holding section completely.Further, since
Dismounting filter instrument is hook-shaped holding section along with in inserting housing, elastic deformation occurring, and by engaging with filter element
And the structure of elastic return, it is therefore desirable to resist the elastic force of holding section and insert dismounting filter instrument, the burden of operator
Greatly.Therefore, the problem taken time and energy when changing filter element operation can be produced.
On the other hand, it is proposed that defecator as described in Patent Document 1.This defecator has and is housed in housing
Cartridge filter filter element and be fastened on the cap (lid) of filter element lower end.Filter element is integrated with cap pre-assembly,
Screwed togather by the external thread part making the internal thread part being arranged on cap be arranged on housing, filter element is housed in housing
In.It addition, in the case of filter element changed by needs, by being dismantled from housing by cap, make filter element and cap one
It is disassembled and changes this assembly together.Therefore, need not dismounting filter instrument when changing filter element, it is possible to reduce and make
The time that industry is taken.
Oil spill is accepted it should be noted that recorded to have when changing filter element in patent documentation 2,3
Deng the dismounting filter instrument of structure.Utilize such dismounting filter instrument, it is possible to suppression oil droplet to operator.
Prior art literature
Patent documentation
Patent documentation 1:(Japan) JP 2000-176217 publication
Patent documentation 2:(Japan) Unexamined Patent 11-221777 publication
Patent documentation 3:(Japan) JP 2010-19206 publication
Summary of the invention
The problem that invention is to be solved
But, for the defecator described in patent documentation 1, when changing filter element, due to will be by need not
Filter element throw away together with cap, therefore can produce the problem that part cost increase makes maintenance cost raise.
It addition, in the case of thinking only to change filter element because of certain reason, need to use special tool(s) by filter
Filter element disassembles from cap and causes operation complicated.
It is an object of the invention to provide a kind of dismounting filter instrument, it can make the operation of replacing filter element become
Obtain easily, and after changing operation, it is possible to keep the original state of cap to reuse.
The means of solution problem
The tubular that the dismounting filter instrument of the present invention will be housed in this housing through the peristome being arranged on housing
Filter element disassembles, it is characterised in that have: installation portion, and it is provided with the described peristome being screwed on described housing
Threaded portion around；Insertion section, its cardinal extremity forms as one with described installation portion, and front end is free end, and, by screwing togather this
Installation portion, this front end move along the axis direction of described filter element and can orthogonal with this axis direction radially
Elastic deformation, and along with screwing togather this installation portion, this insertion section is inserted from described peristome and is arranged on described filter element
Medium pore in；Holding section, it is arranged on the front end of described insertion section, and utilizes the regulation screwing togather described installation portion and produce to move
Momentum engages with described filter element.
According to the present invention, it is provided with the installation portion of the threaded portion screwed togather with housing owing to dismounting filter instrument has, because of
This, in the case of using dismounting filter instrument to dismantle the filter element in housing, inserted as long as making insertion section be in
State in the medium pore of filter insert also makes described installation portion and housing screw togather, along with the carrying out screwed togather, it is possible to make to insert
Enter portion to insert exactly relative to filter element, and during by screwing togather installation portion, movement in the axial direction is easily carried out
Make insertion section to the elastic deformation such as radially bending, make the holding section of front end, insertion section engage with filter element.It addition, pass through
Installation portion is made to start to rotate round about from such state and release and the screwing togather of housing, it is possible to extract filter element out,
Can easily be replaced the operation of filter element.
And, in the present invention, the cap used for occlusion of openings portion is arranged with filter element split, it is also possible to mistake
Filter insert is similarly configured to parts of such as compression pump etc..Therefore, there is no need to make cap together with filter element more
Change, it is possible to after changing filter element, reuse cap.
For the dismounting filter instrument of the present invention, it is preferred that a length of described filter filter of described insertion section
Core is more than the length of axis direction, and in the position that described installation portion will screw togather, the snap-latch surface of described holding section is with engaged
The distance produced between portion is owing to described installation portion screws togather this installation portion produced removable length at described axis direction
Below degree, this engaged part is arranged in the both ends of the surface of described filter element near the inner side end away from described peristome.
According to the present invention, by the most suitably setting relative to filter element at the dismounting filter of axis direction length
The length of the insertion section of instrument, when dismantling filter between snap-latch surface and the engaged part of filter element of holding section away from
From and screw togather installation portion and the removable length that produces, it is possible to make the engaged part inside holding section and filter element reliable
Ground engaging.
For the dismounting filter instrument of the present invention, preferably having regulation parts, it is detachably arranged on described
Insertion section regulates the elastic modelling quantity of this insertion section.
According to the present invention, when the holding section making dismounting filter instrument engages with filter element, and at card
Under the state that conjunction portion engages with filter element, utilize regulation parts be adjusted so that the sweep of insertion section shorten into
And make elastic modelling quantity increase, so that insertion section is difficult to bend.Therefore, screwing togather solution division operation by installation portion, making filtration
When device filter element is extracted out in housing etc., by holding section is applied load, even if making this holding section bend, also there is no concern that insertion
Portion bends easily such that it is able to prevent holding section from surprisingly coming off from filter element, and can make filter element reliably
Extract out in housing.
And, after filter element is extracted out in housing, tear open from dismounting filter instrument making this filter element
In the case of getting off, regulated by removal regulation parts etc., so that the sweep of insertion section is elongated and make elastic modelling quantity subtract
Little, make insertion section be easily bent.Therefore, mediating holding section by operator just can make insertion section hold relative to axis direction
Easily elastic deformation, it is possible to make insertion section make filter element tear open from dismounting filter instrument easily with the state of elastic deformation
Unload.
For the dismounting filter instrument of the present invention, the most described installation portion has undertaking by described filter element mistake
The carrier of the fluid of filter.
According to the present invention, owing to the structure of installation portion is to have the carrier that whole installation is concavity etc., therefore, it is possible to sharp
The fluid etc. of leakage when being undertaken on dismounting filter with carrier, it is possible to prevent fluid etc. from falling operator on hand, or fly
Splash around.And, utilize the degree of depth of carrier, it is possible to make the filter element disassembled in housing fall into carrier
In, it is possible to make the end of the holding section medium pore from filter element expose.Therefore, by filter element from dismounting filter
In the case of removing on instrument, it is possible to easily mediate the holding section exposed and make insertion section to elastomeric radial.
For the dismounting filter instrument of the present invention, the most described holding section engages with engaged part, this engaged part
It is arranged in the both ends of the surface of described filter element and is located remotely near the end face of described peristome position.
According to the present invention, owing to being set to engage with engaged part by the holding section of dismounting filter instrument, this is engaged
Portion is arranged in filter element near the end face being located remotely from described peristome position, therefore, it is possible to holding section will be provided with
Insertion section is set to consider the specific length of bending difficulty, and can make the front end of holding section from filter element
Central aperture is easily exposed and can be easily kneaded.It should be noted that maintain to make insertion section be difficult to bend holding section with
The fastening state of engaged part, uses above-mentioned regulation parts to regulate elastic modelling quantity.
The tubular that the dismounting filter instrument of the present invention will be housed in this housing through the peristome being arranged on housing
Filter element disassembles, it is characterised in that have: installation portion, and it has to be provided with to be screwed on described in described housing opens
The carrier of the fluid that the threaded portion around oral area and undertaking are filtered by described filter element；Insertion section, it has multiple wrist
Portion, the cardinal extremity of this wrist forms as one with described installation portion, and front end is free end, and, by screwing togather this installation portion, before this
Hold along the axis direction of described filter element move and can in the radially elastic deformation orthogonal with this axis direction, and
And along with screwing togather this installation portion, this insertion section is inserted from described peristome and is arranged in the medium pore described filter element；
Holding section, it is arranged on the front end of described insertion section, and the regulation amount of movement produced by screwing togather described installation portion is with described
Filter element engages；Regulation parts, it is detachably arranged in the described wrist of described insertion section and regulates this wrist
Elastic modelling quantity；The a length of described filter element of described insertion section is more than the length of axis direction, at described installation portion
During the position that will screw togather, the distance produced between snap-latch surface and the engaged part of described holding section is due to described installation portion spiral shell
This installation portion closed and produce is below the removable length of described axis direction, and this engaged part is arranged on the filter of described filter
In the both ends of the surface of core near inner side end away from described peristome.
According to the present invention, it is obtained in that above-mentioned action effect equally.
Accompanying drawing explanation
Fig. 1 is making of the filter element of the dismounting filter tool ejector utilizing an embodiment of the present invention for explanation
With the axonometric chart of situation.
Fig. 2 is to represent the exploded perspective view that dismounting filter instrument is overall.
Fig. 3 is the first figure for illustrating to change filter element operation.
Fig. 4 is the second figure for illustrating to change filter element operation.
Detailed description of the invention
Hereinafter, based on accompanying drawing, present embodiment is described.
Fig. 1 represents the behaviour in service of the filter element 92 utilizing dismounting filter tool ejector.Filter element 92 is received
Holding in compression pump 9, aqueous solution of urea is supplied in SCR deamination apparatus by this compression pump 9.Selective catalysis
Reduction deamination apparatus is mounted in building machinery as exhaust gas post-treatment device, i.e. on hydraulic crawler excavator 1.It addition, Fig. 1 is from rear
Forwards observe the figure of hydraulic crawler excavator 1.
[explanation of hydraulic crawler excavator]
Here, hydraulic crawler excavator 1 has: crawler type lower traveling body 2, be rotatably arranged on lower traveling body 2
The upper rotating body 3 on top, it is arranged on the driver's cabin 4 of the left front of upper rotating body 3, is arranged on the work on the right side of driver's cabin 4
Make device 5.Wherein, equipment 5 has: cardinal extremity is rotatably attached at the large arm 6 in upper rotating body 3, and cardinal extremity rotates
The forearm 7 that is attached at the front end of large arm 6 freely, the scraper bowl 8 of the front end being rotatably attached at forearm 7.These large arm 6,
Forearm 7, scraper bowl 8 are respectively by hydraulic cylinder, and the bucket hydraulic cylinder of the biggest arm hydraulic cylinder 6A, little arm hydraulic cylinder 7A and omission diagram drives
Dynamic rotation.
Rear portion side in upper rotating body 3 is provided with engine room, is equipped with internal combustion engine, i.e. saves sketch map in engine room
The Diesel engine (hreinafter referred to as electromotor) shown.Hydraulic pump is driven by this electromotor, is supplied by the pressure oil from hydraulic pump
It is given to big arm hydraulic cylinder 6A, little arm hydraulic cylinder 7A and bucket hydraulic cylinder, it addition, be supplied to the driving source of lower traveling body 2, i.e.
Hydraulic motor.
It addition, after being equipped with the above-mentioned aerofluxus omitting diagram in the engine room of the upper rotating body 3 of present embodiment
Processing means, this exhaust gas post-treatment device purifies the aerofluxus discharged from electromotor.As exhaust gas post-treatment device, use to have and catch
Obtain PM (the Particle Matter in aerofluxus；Particulate matter) defecator, the downstream being arranged in defecator the row of purification
The device of the SCR deamination apparatus of the nitrogen oxides in gas.The reducing agent that catalytic reduction device is used is from urine
The ammonia produced in element aqueous solution.
Therefore, being provided with carbamide water tank in upper rotating body 3, this carbamide water tank retains the urea water generating ammonia
Solution.Carbamide water tank is arranged in other the not shown configuration spaces kept apart with engine room, to protect it from electromotor
Heat affecting.And, in other configuration space 3A shielded relative to engine room, it is provided with compression pump 9, this compression pump 9
Aqueous solution of urea is transported in the ejector being arranged on exhaustor from carbamide tank pressure.Pressure-feed by compression pump 9
Aqueous solution of urea is injected in exhaustor by ejector, and is fed in catalytic reduction device together with aerofluxus.
Compression pump 9 is the structure that the pump main bodys such as such as vane pump are covered by resinous housing 91.As it is shown on figure 3, at shell
The inside of body 91 contains filter element 92, and this filter element 92 filters the impurity being mixed in aqueous solution of urea.At housing
The bottom of 91 is provided with the peristome 91A for loading and unloading filter element 92, peristome 91A and is closed by cap 93 (with reference to Fig. 1), should
Cap 93 screws togather with the external thread part 91B being arranged on around peristome 91A.
Filter element 92 has which floor folded filter paper becomes be formed as the filter element carrier of undulatory integral barrel shape
94 and keep the ring-type holding member of resin-made 95 of two end portions of filter element carrier 94.Filter element 92 with axis AL along vertical
The mode in direction is housed in the resettlement section 91C of housing 91.Each holding member 95 is provided with O 96, O 96 with
The inner surface contact of resettlement section 91C, and utilize this extruding force to make filter element 92 be securely held in the 91C of resettlement section.
In figure 3, the flow direction of sharp aqueous solution of urea indicated by an arrow.Coming in inflow resettlement section, the left 91C from figure
Arrive centrally disposed medium pore 92A from the aqueous solution of urea of carbamide water tank by filter element 92, lead to from medium pore 92A
The opening 95A of the holding member 95 on the upside of crossing also flows out between the upper end of filter element 92 and the end face of resettlement section 91C
Space, in then a part is transported to ejector, a remaining part returns carbamide water tank.
The filter element that filter element 92 as above more to renew after using the stipulated time.By in bottom
On the crawler belt of driving body 2, make side cover 3B, the 3B (Fig. 1) on the engine room of covering upper rotating body 3 and the right side of configuration space 3A
Open and be replaced operation.Change operation particular order will illustrate later, in this replacing operation, use as Fig. 2 with
Resin-made dismounting filter instrument 10 shown in Fig. 3.
[explanation of dismounting filter instrument]
In figs. 2 and 3, dismounting filter instrument 10 has: tool body 11, load and unload respectively on this tool body 11
It is provided with regulation parts 21 and guard shield 31 freely.
Tool body 11 has: bottomed cylindrical installation portion 12, and this installation portion 12 is screwed on and is arranged at opening on housing 91
Around oral area 91A；Insertion section 13, the cardinal extremity of this insertion section 13 is integrally forming with installation portion 12, and front end is free end, and passes through
Screwing togather of this installation portion 12, enable front end in the radially elastic deformation orthogonal with the axis direction of filter element 92, and
And screwing togather along with this installation portion 12, this insertion section 13 is inserted from peristome 91A and is arranged on the medium pore filter element 92
In 92A；Holding section 14, this holding section 14 is arranged on the front end of insertion section 13, and the regulation produced by screwing togather installation portion 12
Amount of movement and engage with filter element 92；Handle part 15, holds for operator.
The installation portion 12 of tool body 11 have with peristome 91 around the internal thread part 12A that screws togather of external thread part 91B,
Make installation portion 12 screw togather with housing 91 by being screwed into.It addition, installation portion 12 is provided towards the filtration being housed in housing 91
Device filter element 92 side, i.e. towards the cross section concavity of upper opening in figure.And, utilize concave inner space, cross section, formed and accept
From the carrier 12B of the filter element 92 that housing 91 disassembles.
Insertion section 13 has: extend above columnar part 13A of setting from the mediad of the bottom 12C of installation portion 12, from post
The front end face 13B of the shape portion 13A cross section that side is extended further up is a pair fan-shaped wrist 13C, 13C, these wrists
The front of 13C is free end, and the front end of wrist 13C is provided with holding section 14.It is circular column in end surface shape
The front end face 13B of portion 13A, a pair wrist 13C is across axis AL along the diametric(al) of front end face 13B ground disconnected from each other side by side
Arrange.
As it is shown on figure 3, holding section 14 is prominent to the direction orthogonal with the bearing of trend of wrist 13C, and with engaged part 92B
Engaging, in the both ends of the surface of filter element 92 being positioned at housing 91, this engaged part 92B is arranged far from peristome 91A
Near the end face of the top of position.More specifically, holding section 14 has: snap-latch surface 14A, and it is that cross section is in fan-shaped wrist
The shape that the circular arc laterally outside of 13C front end is prominent, and contact with engaged part 92B；Inclined plane 14B, it is got over to projected direction
Extending, position tilts the closer to lower section.
It should be noted that in the holding member 95 of filter element 92, engaged part 92B is configured to around forming central authorities
The inward flange of the opening 95A of hole 92A.
Handle part 15 is the cylindrical shape that diameter is less than installation portion 12.Outer peripheral face at handle part 15 is provided with and axis direction
Parallel multiple protruding part 15A.These protruding parts 15A becomes anti-slip part, holds handle part 15 and carries out improving operator
The operability of rotating operation.
Here, as it is shown on figure 3, in the present embodiment, the insertion section 13 being arranged on tool body 11 from cardinal extremity to
Length L of front end edge axis direction is filter element 92 (L >=l) more than length l of axis direction.It addition, as double in Fig. 3
Shown in chain-dotted line, when being positioned at the position that will screw togather installation portion 12, produce the snap-latch surface 14A in holding section 14 and filter with filter
Distance a between the engaged part 92B of core 92 is the axis direction screwing togather this installation portion 12 produced due to installation portion 12
Removable length b below (b >=a).Utilize this structure, by making installation portion 12 screw togather with housing 91, and in removable length b
In the range of so that it is in the axial direction more than displacement a, it is possible to make holding section 14 reliable with the engaged part 92B of inner side
Ground engaging.
Regulation parts 21 are the column with specific length.The radial dimension of regulation parts 21 and the columnar part of insertion section 13
The radial dimension of 13A is identical.The length dimension of regulation parts 21 is shorter than wrist 13C, and substantially the length dimension of wrist 13C is big
About about 3/4.It is provided with along axis direction continuous print pair of notches 22,22 in the periphery of regulation parts 21.Otch 22 along
The diametric(al) setting separated from one another of regulation parts 21, and when overlooking, it is shaped as identical with the cross sectional shape of wrist 13C
Sector.That is, when wrist inserts these otch 22, regulation parts 21 insert between a pair wrist 13C (with reference to figure
3).It addition, the part in addition to the otch 22 of regulation parts 21, leave the flange part 23 at two ends and recessed.Need explanation
It is, recess as above not necessarily structure.
Guard shield 31 is for there being top tubular, and has external thread part 31A in lower side periphery.By making external thread part 31A and peace
The internal thread part 12A in dress portion 12 screws togather, it is possible to make guard shield 31 be arranged on tool body 11.Regulation parts 21 are being inserted wrist
Mounting strap 31 under state between 13C, and in being arranged on driver's cabin 4 or top is revolved as dismounting filter instrument 10 keeping
Turn the regulation storage position on 3.
[changing the explanation of filter element operation]
Hereinafter, with reference to Fig. 2 to Fig. 4, illustrate to change the operation of filter element 92.
First, take out the keeping dismounting filter instrument 10 in storage position, guard shield 31 is dismantled from tool body 11.Adjust
Joint parts 21 are intactly arranged between wrist 13C.
On the other hand, the cap 93 of compression pump 9 is dismantled.The part remaining in the aqueous solution of urea in the 91C of resettlement section is accumulated
In cap 93, aqueous solution of urea is made not to be removed with not leaking by dismounting cap 93.
Then, the external thread part 91B of internal thread part 12A and the housing 91 being arranged on the installation portion 12 of tool body 11 is made
Screw togather, so that the medium pore 92A of filter element 92 is inserted from the peristome 91A of housing 91 in the insertion section 13 of tool body 11
In.The rotating operation utilizing handle part 15 proceeds this and screws togather operation, makes tool body 11 move to the top of axis direction.
So, as shown in Fig. 3 double dot dash line, constitute filter element 92 holding member 95 opening 95A inner edge with
The inclined plane 14B contact being arranged on the holding section 14 of tool body 11, along with the carrying out screwed togather, a pair wrist 13C is to radially
Direction bending close to each other.Owing to regulation parts 21 are used when abutting with the front end face 13B of columnar part 13A,
The bending of wrist 13C the most now is in the upper end to regulate parts 21 as fulcrum, and more prominent than side more up, this upper end is extremely short
Produce in region.
Accordingly, because bending produce in extremely short region, therefore to make wrist 13C to radially bending, need than from
The enough external force that the strong elastic of wrist 13C is big.In the present embodiment, by carrying out screwing togather of installation portion 12, this external force is made
Produce the contact portion in inclined plane 14B Yu the inner edge of opening 95A, it is possible to make wrist 13C be easily bent.
Then, proceed to screw togather operation, when making installation portion 12 reach up to position shown in solid in Fig. 3, opening 95A
Inner edge do not contact with inclined plane 14B, the power being applied on wrist 13C is by abrupt release, wrist 13C elastic return, and makes card
The snap-latch surface 14A in conjunction portion 14 engages with engaged part 92B.When this is engaging in place, owing to bending wrist 13C is the most elastic extensive
Multiple, thus the card synaeresis of " click " can be produced, operator hear this card synaeresis, it is possible to confirm the most reliably to engage.
Then, handle part 15 is carried out rotating operation round about, make installation portion 12 relax relative to housing 91, make
Tool body 11 moves to the lower section of axis direction.When moving below this, on a pair wrist 13C, effect makes this wrist
The external force that 13C bends near direction to each other, but owing to the engaging of holding section 14 with engaged part 92B is and shifting downwards
The engaging that dynamic orthogonal face is against each other, therefore wrist 13C is not easy bending and can reliably maintain this engaging.Then, in work
While tool main body 11 moves downwards, filter element 92 is extracted out in the 91C of resettlement section, moves to release installation portion always
12 with the position screwed togather of housing 91 after, by extraction tool main body 11 downwards, make filter element 92 dismantle from housing 91.
When filter element 92 is dismantled from housing 91, as shown in Figure 4, filter element 92 falls into and is housed in and is arranged on
In cross section concave carrier 12B on installation portion 12.The filter element 92 being disassembled has aqueous solution of urea, but logical
Cross and be housed in carrier 12B, both there is no concern that with the aqueous solution of urea of filter element 92 drippage sticks in operator,
Can utilize again carrier 12B catch when filter element 92 is extracted out from housing 91 splash aqueous solution of urea, do not flow into
Aqueous solution of urea in the resettlement section 91C accumulated in cap 93.
It follows that in the diagram, make a pair wrist 13C from filtration making filter element 92 to carrier 12B side shifting
Under the prominent state of device filter element 92, regulation parts 21 (Fig. 2, Fig. 3) are made to extract out between wrist 13C and dismantle.Then, pinch
Close holding section 14 etc., and make a pair wrist 13C as shown in double dot dash line, bend to central side (axis AL side) close to each other.
Now, owing to having dismantled regulation parts 21, wrist 13C therefore just can be easily made to bend from its base end side with less power.
Make wrist 13C bending make holding section 14 close to each other, and make this holding section 14 through the holding being arranged on filter element 92
Opening 95A on parts 95, as shown in dash-double-dot arrow, makes filter element 92 move and dismantle from tool body 11.Tear open
Filter element 92 after unloading is thrown away, and former storage position put back to by the dismounting filter instrument 10 after using.
For compression pump 9, new filter element inserts in the resettlement section 91C of housing 91 through peristome 91A, and
Reuse the cap 93 dismantled and carry out closed peristome 91A.
This completes the replacing operation of filter element 92.
It should be noted that the invention is not restricted to above-mentioned embodiment, the change in the range of can reaching the object of the invention
Within shape, improvement etc. are included in the present invention.
Such as, in said embodiment, regulation parts 21 are the structures relative to wrist 13C handling, it is also possible to as
It is assembled into the structure between wrist 13C, and the extended direction of wrist 13C is freely mobile regulates wrist by being arranged along
The elastic modelling quantity of 13C.
In said embodiment, being provided with a pair wrist 13C, wrist 13C is not limited to a pair, it is also possible to be one or
Three with first-class.
In said embodiment, holding section 14 is attached with the end of the peristome 91A side away from filter element 92
The structure of near engaged part 92B engaging, but situation about engaging with the engaged part near peristome 91A end is also wrapped
It is contained in the present invention.
In this case, by substantially ensuring that the degree of depth of carrier 12B, preferably the cardinal extremity from insertion section 13 is to front end
Length L is that filter element 92 is more than length l of axis direction.Then, the length long enough of wrist 13C can either be made, again
Wrist 13C can be made only prominent from the end of filter element 92 when filter element 92 falls in carrier 12B
Necessary length, so can easily mediate holding section 14, and easily handling regulation parts 21.
The present invention is in addition to can be used in the filter of the compression pump of replacing pressure transport urea aqueous solution, additionally it is possible to use
In refuelling pump filter, change the filter of other machines arbitrarily processing fluids.
Description of reference numerals
10 dismounting filter instruments
12 installation portions
12A is as the internal thread part of threaded portion
13 insertion sections
13C wrist
14 holding sections
91 housings
91A peristome
92 filter elements
92A medium pore
92B engaged part
L, l length
A distance
B may move length
Claims (7)
1. a dismounting filter instrument, the cartridge filter being housed in this housing through the peristome being arranged on housing
Cartridge removal gets off, it is characterised in that have:
Installation portion, it is provided with the threaded portion being screwed on around the described peristome of described housing；
Insertion section, its cardinal extremity forms as one with described installation portion, and front end is free end, and, by screwing togather this installation portion, should
Front end move along the axis direction of described filter element and can in the radially elastic deformation orthogonal with this axis direction,
And along with screwing togather this installation portion, this insertion section is inserted from described peristome and is arranged on the medium pore described filter element
In；
Holding section, it is arranged on the front end of described insertion section, and utilize the regulation amount of movement that screws togather described installation portion and produce with
Described filter element engages.
2. dismounting filter instrument as claimed in claim 1, it is characterised in that
The length of described insertion section is more than or equal to the described filter element length at axis direction,
In the position that described installation portion will screw togather, the distance between snap-latch surface and the engaged part of described holding section is less than or equal to
This installation portion produced owing to described installation portion screws togather is in the removable length of described axis direction, and this engaged part is arranged on
The both ends of the surface of described filter element are located remotely near the end face of described peristome position.
3. the dismounting filter instrument as described in claim 1 or claim 2, it is characterised in that
Having regulation parts, it is detachably arranged on described insertion section to regulate the elastic modelling quantity of this insertion section.
4. dismounting filter instrument as claimed in claim 1 or 2, it is characterised in that
Described installation portion has the carrier accepting the fluid filtered by described filter element.
5. dismounting filter instrument as claimed in claim 3, it is characterised in that
Described installation portion has the carrier accepting the fluid filtered by described filter element.
6. dismounting filter instrument as claimed in claim 1, it is characterised in that
Described holding section engages with engaged part, and this engaged part is arranged in the both ends of the surface of described filter element and is located remotely from
Near the end face of described peristome position.
7. a dismounting filter instrument, the cartridge filter being housed in this housing through the peristome being arranged on housing
Cartridge removal gets off, it is characterised in that have:
Installation portion, it has and is provided with the threaded portion that is screwed on around the described peristome of described housing and accepts by described filtration
The carrier of the fluid of device filter element filtering；
Insertion section, it includes multiple wrist, and the cardinal extremity of this insertion section forms as one with described installation portion, and front end is free end,
Further, by screwing togather this installation portion, this front end move along the axis direction of described filter element and can with this axis
The radially elastic deformation that direction is orthogonal, and along with screwing togather this installation portion, this insertion section is inserted from described peristome and is arranged on
In medium pore on described filter element；
Holding section, it is arranged on the front end of described insertion section, and the regulation amount of movement produced by screwing togather described installation portion with
Described filter element engages；
Regulation parts, it is detachably arranged on the described wrist of described insertion section to regulate the elastic modelling quantity of this wrist；
The length of described insertion section is more than or equal to the described filter element length at axis direction,
In the position that described installation portion will screw togather, the distance between snap-latch surface and the engaged part of described holding section is less than or equal to
This installation portion produced owing to described installation portion screws togather is in the removable length of described axis direction, and this engaged part is arranged on
The both ends of the surface of described filter element are located remotely near the end face of described peristome position.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2013/084761 WO2015097799A1 (en) | 2013-12-25 | 2013-12-25 | Filter removal tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104582906A CN104582906A (en) | 2015-04-29 |
| CN104582906B true CN104582906B (en) | 2016-11-30 |
Family
ID=
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11221777A (en) * | 1998-02-05 | 1999-08-17 | Yutani Heavy Ind Ltd | Oil filter replacement auxiliary tool |
| EP1008375A1 (en) * | 1998-12-11 | 2000-06-14 | Baldwin Filters, Inc. | Disposable fuel filter element and lid assembly |
| CN1723068A (en) * | 2003-04-28 | 2006-01-18 | 密科理股份有限公司 | Filter element-removing jig |
| CN203060958U (en) * | 2012-12-21 | 2013-07-17 | 南京梅山冶金发展有限公司 | Filter element dismantling device |
| CN203245786U (en) * | 2013-04-19 | 2013-10-23 | 河南中烟工业有限责任公司 | Tool for dismounting air conditioner filter element |
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11221777A (en) * | 1998-02-05 | 1999-08-17 | Yutani Heavy Ind Ltd | Oil filter replacement auxiliary tool |
| EP1008375A1 (en) * | 1998-12-11 | 2000-06-14 | Baldwin Filters, Inc. | Disposable fuel filter element and lid assembly |
| CN1723068A (en) * | 2003-04-28 | 2006-01-18 | 密科理股份有限公司 | Filter element-removing jig |
| CN203060958U (en) * | 2012-12-21 | 2013-07-17 | 南京梅山冶金发展有限公司 | Filter element dismantling device |
| CN203245786U (en) * | 2013-04-19 | 2013-10-23 | 河南中烟工业有限责任公司 | Tool for dismounting air conditioner filter element |
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