CN109529435A - A kind of fast changeable filter screen for sewage treatment - Google Patents

A kind of fast changeable filter screen for sewage treatment Download PDF

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Publication number
CN109529435A
CN109529435A CN201811640696.9A CN201811640696A CN109529435A CN 109529435 A CN109529435 A CN 109529435A CN 201811640696 A CN201811640696 A CN 201811640696A CN 109529435 A CN109529435 A CN 109529435A
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CN
China
Prior art keywords
sleeve
filter screen
gas
piston
sewage treatment
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Granted
Application number
CN201811640696.9A
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Chinese (zh)
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CN109529435B (en
Inventor
安呈波
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GUANGZHOU HAIZHU YANGCHENG ENVIRONMENTAL PROTECTION Co.,Ltd.
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安呈波
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Priority to CN201811640696.9A priority Critical patent/CN109529435B/en
Publication of CN109529435A publication Critical patent/CN109529435A/en
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Publication of CN109529435B publication Critical patent/CN109529435B/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/96Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
    • 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
    • B01D35/02Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/34Seals or gaskets for filtering elements
    • B01D2201/345Pressurized seals or gaskets

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The present invention relates to a kind of fast changeable filter screen for sewage treatment, effective solution common filter screen replacement difficulty and quick-replaceable filter screen poor sealing or the problem of be easily damaged sealing element;Its technical solution solved includes that filter screen is replaced by way of pull, the filter screen being replaced filter screen clean when being completely withdrawn from sewage treatment pipeline is installed in place, it is easy to operate to change filter screen, it saves manpower and time, it not only can achieve good sealing effect to being sealed between filter screen and flange by gas-flow closure circle, and it can first deflate to gas-flow closure circle when replacing filter screen, deflated gas-flow closure circle will not generate resistance in pull filter screen, and abrasion will not be generated to gas-flow closure circle in pull filter screen, keep gas-flow closure circle reusable, save resource.

Description

A kind of fast changeable filter screen for sewage treatment
Technical field
The present invention relates to sewage treatment field, especially a kind of fast changeable filter screen for sewage treatment.
Background technique
Impurity or floating material big in sewage can be filtered when sewage treatment, generally can to the filtering of sewage first Filter screen is used, the flowing of meeting retained water when filter net jam has been served as, has reduced the efficiency of sewage treatment, can make when filter screen breakage Big impurity or floating material reduces the quality of filtering by strainer;Process is many and diverse when common filter screen replacement and needs more people total With cooperation, waste of manpower and time, quick-replaceable filter screen cause sewage to leak or sealing effect there are sealing performance is bad Resistance good but that sealing element generates when replacing filter screen is larger, in quick-replaceable filter screen sealing element will receive damage so that It cannot reuse, to cause the waste of resource.
Summary of the invention
For above situation, for the defect for overcoming the prior art, what the present invention provides a kind of for sewage treatment can be fast The filter screen of speed replacement, effective solution common filter screen replacement difficulty and quick-replaceable filter screen poor sealing or is easy The problem of damaging sealing element.
Its technical solution solved the problems, such as is, including quadratic filter net, is respectively provided on the outer edge surface of filter screen left and right ends One annular groove is cased with a gas-flow closure circle in each annular groove, a groove is respectively provided in the left and right ends of filter screen, The first sleeve of one with its connects with the internal cavities are connected on each gas-flow closure circle, the front of motor of each first sleeve hangs down It directly extend into the groove of respective side, there is a piston in each first sleeve, piston can move up and down in first sleeve And its lower end is placed in outside first sleeve;There is one can move left and right inside it and the extended correspondence in one end in each groove The slide bar of groove is fixed with an outer diameter second sleeve equal with first sleeve outer diameter, each second sleeve on each slide bar It is inside fixed with the mandril of a stretching the upper end, is cased with a 3rd sleeve moving up and down outside each second sleeve;Each An air intake duct is provided with inside slide bar, each air intake duct is connected to corresponding second sleeve;Slide bar drives mandril through second sleeve Being moved to can push piston to move up with when piston contact, and piston, which is moved up, generates interval with first sleeve inner wall, when the When the central axis of one sleeve is overlapped with the central axis of second sleeve, 3rd sleeve can be moved up, when 3rd sleeve is mobile Fit closely first sleeve, second sleeve when to highest point, at this time the inner cavity of gas-flow closure circle through first sleeve, second sleeve with Air intake duct connection, mandril are moved to piston reset when disengaging with piston and seal first sleeve.
By the present invention in that can not only be made to reach good between filter screen and sewage treatment pipeline with gas-flow closure circle Sealing effect, but also resistance when replacing filter screen can be reduced, damage will not be generated to sealing ring, keep sealing ring repeatable It utilizes, saves resource, replacement filter screen is easy to operate, saves manpower and time, improves the efficiency of sewage treatment.
Detailed description of the invention
Fig. 1 is main view sectional view of the present invention.
Fig. 2 is a-quadrant partial enlarged view in Fig. 1 of the present invention.
Fig. 3 is B area partial enlarged view in Fig. 2 of the present invention.
Fig. 4 is the region C partial enlarged view in Fig. 3 of the present invention.
Fig. 5 is mandril and second sleeve top view in Fig. 3 of the present invention.
Fig. 6 is schematic diagram when 3rd sleeve and shell are placed in bottom in Fig. 2 of the present invention.
Fig. 7 is the region D partial enlarged view in Fig. 6 of the present invention.
Fig. 8 is the region E partial enlarged view in Fig. 7 of the present invention.
Fig. 9 is mandril and the schematic diagram after piston disengaging in Fig. 6 of the present invention.
Figure 10 is gas-flow closure circle, boss, first sleeve, piston and the first pressure spring schematic diagram in Fig. 9 of the present invention.
Figure 11 is the top view that the filter screen of gas-flow closure circle is removed in Fig. 1 of the present invention.
Figure 12 is the region F partial enlarged view in Figure 11 of the present invention.
Figure 13 is the schematic diagram that filter screen is mounted in sewage treatment pipeline by the present invention.
Figure 14 is the region G partial enlarged view in Figure 13 of the present invention.
26 represent the flange on sewage treatment pipeline in above each figure, and 27 represent conventional seals pad, and 28 represent on filter screen Bolt hole.
Specific embodiment
Below in conjunction with attached drawing, specific embodiments of the present invention will be described in further detail.
By Fig. 1 to Figure 14 it is found that the present invention includes quadratic filter net 1, respectively it is provided on the outer edge surface of 1 left and right ends of filter screen One annular groove 2 is cased with a gas-flow closure circle 3 in each annular groove 2, is respectively provided with one in the left and right ends of filter screen 1 Groove, is connected with the first sleeve 4 with its connects with the internal cavities on each gas-flow closure circle 3, each first sleeve 4 it is non- Connecting pin extends vertically into the groove of respective side, there is a piston 5 in each first sleeve 4, and piston 5 can be in first sleeve It is moved up and down in 4 and its lower end is placed in outside first sleeve 4;There is one can move left and right inside it and one in each groove The slide bar 6 of extended respective slot is held, second set equal with 4 outer diameter of first sleeve of an outer diameter is fixed on each slide bar 6 Cylinder 7 is fixed with the mandril 8 of a stretching the upper end in each second sleeve 7, and being cased with one outside each second sleeve 7 can be upper and lower Mobile 3rd sleeve 9;An air intake duct 10 is provided with inside each slide bar 6, each air intake duct 10 connects with corresponding second sleeve 7 It is logical;Slide bar 6 drives mandril 8 piston 5 can be pushed to move up when being moved to and contacting with piston 5 through second sleeve 7, and piston 5 is upward It is mobile to generate interval with 4 inner wall of first sleeve, when the central axis of first sleeve 4 is overlapped with the central axis of second sleeve 7, 3rd sleeve 9 can move up, and first sleeve 4, second sleeve 7 be fitted closely when 3rd sleeve 9 is moved to highest point, at this time The inner cavity of gas-flow closure circle 3 is connected to through first sleeve 4, second sleeve 7 with air intake duct 10, and mandril 8 is moved to be connect with the disengaging of piston 5 Piston 5 resets and seals first sleeve 4 when touching.
The bottom of the annular groove 2 is provided with the first through hole being connected to groove, and first sleeve 4 is hung down through first through hole It directly protrudes into groove, first through hole upper end is provided with a up big and down small cone shaped countersink, and counterbore is provided with one and matches with its interference The upper end of the cone boss 12 of conjunction, boss 12 is connect with gas-flow closure circle 3, and lower end is connect with first sleeve 4, is opened up on boss 12 There is the venthole for being connected to first sleeve 4 with 3 inner cavity of gas-flow closure circle, first sleeve 4 is connect through boss 12 with gas-flow closure circle 3 It is fixed first sleeve 4, boss 12 and counterbore interference fit avoid the shaking of first sleeve 4;It is set between piston 5 and boss 12 There is the first pressure spring 13, one end of the first pressure spring 13 is connect with piston 5, and the other end is connect with boss 12, and the first pressure spring 13 is fixed on Make piston 5 more stable when moving up and down on boss 12;The vertical section of 4 internal cavity upper section of first sleeve is up big and down small cone Shape, the vertical section of 5 upper section of piston are up big and down small taper, when slide bar 6 drives mandril 8 to be moved to and piston 5 through second sleeve 7 Piston 5 is gradually pushed to move up when contact, piston 5, which is moved up, generates interval with 4 inner wall of first sleeve, when mandril 8 and lives Piston 5 resets under the action of the first pressure spring 13 and seals first sleeve 4 when plug 5 disengages.
In order to which that realizes 3rd sleeve 9 moves up and down and is adjacent to corresponding first sleeve 4, second sleeve 7, described first A shaft shoulder is equipped on sleeve 4,3rd sleeve 9, circumference is embedded in multiple balls above its shaft shoulder in 3rd sleeve 9 14,3rd sleeve 9 is cased with the shell that it can be driven to move up and down 15 outside, and 15 upper end of shell is fixed with multiple and ball 14 1 One corresponding wedge block 16,16 upper end of wedge block are the inclined-plane being gradually inclined outwardly from the bottom to top close to the side of ball 14, often Minimum public inscribed circle diameter of all wedge blocks 16 close to the side of 3rd sleeve 9 on a shell 15 is less than corresponding third The circumscribed circle diameter of all balls 14 on sleeve 9, all wedge blocks 16 on each shell 15 are close to the side of 3rd sleeve 9 Maximum public inscribed circle diameter is greater than the circumscribed circle diameter of all balls 14 in corresponding 3rd sleeve 9,15 bottom of shell with it is right Answering has second pressure spring 17 between 9 shaft shoulder of 3rd sleeve, shell 15 drives 3rd sleeve 9 to move up through the second pressure spring 17; No longer moved up when the top of 3rd sleeve 9 and the shaft shoulder of first sleeve 4 contact, shell 15 drive wedge block 16 continue to Upper movement and squeezing ball 14 fits closely 3rd sleeve 9 with first sleeve 4, second sleeve 7, when shell 15 moves downward Wedge block 16, which is first moved downward to, to be contacted with the shaft shoulder of 3rd sleeve 9 and 3rd sleeve 9 is driven to move down.
In order to realize moving up and down for shell 15, it is fixed with a vertical plate 18 on the litter, is provided with one on vertical plate 18 A vertical through slot, one is fixed on shell 15 through vertical plate 18 and the transverse slat 19 that can move up and down in 18 through slot of vertical plate, The lower end surface of transverse slat 19 is provided with a horizontal T-slot, and T-slot is provided with the T-shaped slider that can be horizontally slipped inside it, T Fixed pivot crowbar 21 on slide bar 6, the extended corresponding groove of the non-articulated end of crowbar 21 are hinged on shape sliding block;It is logical It crosses and is provided with the vertical plate 18 of vertical through slot and move transverse slat 19 can only straight up and down, sled is avoided by horizontally slipping for T-shaped slider Thick stick 21 generates stuck when moving up and down with motion plate 19.
In order to be more convenient the case where understanding 3 air pressure inside of gas-flow closure circle, each gas-flow closure circle on the filter screen 1 Position near 3 is provided with a horizontal sliding slot, and sliding slot is provided with one and can horizontally slip inside it and inclined-plane and inflation The wedge block 22 that sealing ring 3 contacts, the inclined-plane of wedge block 22 is from top to bottom inclined outwardly;Sliding slot bottom and corresponding filter screen A second horizontal through-hole is provided between 1 end face, the second through-hole is provided with the scale that can be horizontally slipped inside it 23, one end of scale 23 is fixedly connected with the bottom of wedge block 22, the extended filter screen 1 of the other end, is cased with one on scale 23 One end of a third pressure spring 24, third pressure spring 24 is connect with wedge block 22, and the other end is connect with sliding slot bottom;It is sliding using wedge shape Block 22 can more accurately react the inflation/deflation situation of gas-flow closure circle 3, while third pressure spring 24 is right when gas-flow closure circle 3 is deflated Wedge block 22, which applies active force, makes wedge block 22 have an active force obliquely to gas-flow closure circle 3, to make to inflate Sealing ring 3 is towards 2 bottom crimp of annular groove;Corresponding scale and gas-flow closure when indicating gas-flow closure circle 3 on scale 23 full of gas Enclose 3 it is deflated when corresponding scale, when inflation/deflation carries out judging whether gas-flow closure circle 3 fills by reading the scale on scale 23 Full gas or deflated.
Corresponding piston 5 is pushed to move up in order to facilitate mandril 8,8 upper end of mandril is up-small and down-big taper, is kept away Exempt from stuck when mandril 8 is just contacted with piston 5;The outer diameter of the mandril 8 is less than the internal diameter of second sleeve 7, and mandril 8 is through multiple Strut is fixed in second sleeve 7.
In order to facilitate the quick-replaceable of filter screen 1, the slide bar 6 of the filter screen 1 wherein side stretches out respective slot In a ring, the end that the slide bar 6 of the other side stretches out respective slot is in hook-type for end.
In order to realize the support of slide bar 6, it is fixed with a baffle 25 in each groove, is provided with one on baffle 25 Horizontal third through-hole, slide bar 6 can horizontally slip in the third through-hole on baffle 25, and slide bar 6 is placed in the cross of the end in groove Section be greater than third through-hole cross section, i.e., slide bar 6 be placed in one end in groove cannot be by baffle 25, when slide bar 6 is pulled outwardly It is overlapped to the central axis that extreme position is first sleeve 4 when being pulled outwardly motionless with the central axis of second sleeve 7.
The sundries filtered when replacing filter screen 1 in order to prevent stays in sewage treatment pipeline, the filter screen 1 The thickness for filtering position is thinner than left and right ends, the sundries of filtering can be made to detach sewage treatment pipeline with filter screen 1 in this way, together When also avoid replacement filter screen 1 when wear its filter position.
The lower end surface of piston 5, avoids when the upper surface of the second sleeve 7, vertical plate 18 is sealed lower than first sleeve 4 Second sleeve 7, vertical plate 18 and piston 5 collide when slide bar 6 moves left and right.
For 3 bring resistance of gas-flow closure circle when reducing replacement filter screen 1 and abrasion inflating sealing ring 3 is avoided, it is described Gas-flow closure circle 3 it is deflated after be completely disposed at annular groove 2 when being still within the state, i.e. 3 unaerated of gas-flow closure circle of tensioning It is interior.
Specific work process of the invention is: when filter screen 1 needs replacing, by the slide bar 6 for the filter screen 1 being replaced to Be pulled to outside it is motionless until, as shown in fig. 6, the central axis of second sleeve 7 is overlapped with the central axis of first sleeve 4 at this time, The lower end face contact of mandril 8 and piston 5, piston 5 moves up under the action of mandril 8 to be generated between 4 inner wall of first sleeve Interval, since first sleeve 4 is connected to 3 inner cavity of gas-flow closure circle, working as between 4 inner wall of piston 5 and first sleeve has interval When gas-flow closure circle 3 in gas be discharged into atmosphere through first sleeve 4;As the air pressure in gas-flow closure circle 3 gradually decreases, wedge Shape sliding block 22 slides under the action of third pressure spring 24 towards the direction of gas-flow closure circle 3, since scale 23 is fixed on wedge block On 22, therefore scale 23 follows wedge block 22 to slide, and judges the feelings that gas-flow closure circle 3 is deflated according to the scale on scale 23 Condition after waiting the gas in the gas-flow closure circle 3 at 1 both ends of the filter screen being replaced to discharge, removes 1 left and right ends of filter screen Bolt in the annular end that the hook end of the slide bar 6 of clean filter screen 1 is hung over to 1 slide bar 6 of filter screen being replaced, is pulled by more The hook end of the filter screen 1 changed, when the filter screen 1 being replaced is completely pulled out, clean filter screen 1 is installed in place, and is removed by more The filter screen 1 changed.
The clean filter screen 1 being installed in place is fixed by the flange 26 on bolt and sewage treatment pipeline, as shown in figure 13, The slide bar 6 of clean filter screen 1 is pulled to outward it is motionless until, at this time in the central axis of second sleeve 7 and first sleeve 4 Mandrel line is overlapped, and piston 5 moves up under the action of mandril 8 generates interval between 4 inner wall of first sleeve, as shown in Fig. 2, One end that crowbar 21 stretches out groove is pressed, since transverse slat 19 is connect through T-shaped slider with the other end of crowbar 21, works as crowbar 21 When one end of stretching groove moves downward, transverse slat 19 moves upwards under the drive of 21 other end of crowbar, since cross bar is fixed on On shell 15, therefore shell 15 also moves upwards, and shell 15 moves upwards the squeezed between its bottom and 9 shaft shoulder of 3rd sleeve Two pressure springs 17, extruded second pressure spring 17, which applies upward active force to 3rd sleeve 9, moves upwards 3rd sleeve 9, such as Shown in Fig. 3;When the shaft shoulder that 3rd sleeve 9 moves up on its top and first sleeve 4 contacts, 3rd sleeve 9 is no longer upward Movement, shell 15 continues up, due to all wedge blocks 16 on each shell 15 close to the side of 3rd sleeve 9 most Mini-bus inscribed circle diameter is less than the circumscribed circle diameter of all balls 14 in corresponding 3rd sleeve 9, the institute on each shell 15 There is maximum public inscribed circle diameter of the wedge block 16 close to the side of 3rd sleeve 9 to be greater than all rollings in corresponding 3rd sleeve 9 The circumscribed circle diameter of pearl 14, therefore the wedge block 16 of 15 upper end of shell starts to squeeze the ball 14 in 3rd sleeve 9, such as Fig. 4 institute Show;When one end that crowbar 21 stretches out groove reaches minimum point, that is, when pressing down on motionless, wedge block 16 is sufficiently squeezed at this time Ball 14 fits closely 3rd sleeve 9 with first sleeve 4, second sleeve 7, and wedge block 16 at this time and ball 14 it Between exist can be self-locking active force.
3rd sleeve 9 and first sleeve 4, second sleeve 7 fit closely make the inner cavity of gas-flow closure circle 3 through first sleeve 4, Second sleeve 7 is connected to air intake duct 10, and one end that slide bar 6 stretches out groove is fixed with the gas nozzle being connected to air intake duct 10, will Gas nozzle is connect with high-pressure air source to be inflated to gas-flow closure circle 3, as the air pressure in gas-flow closure circle 3 is gradually increased, inflation Sealing ring 3 pushes wedge block 22 to slide towards the direction far from gas-flow closure circle 3, and third pressure spring 24 is gradually filled by correspondence at this time The extruding of airtight seal 3, since scale 23 is fixed on wedge block 22, scale 23 follows wedge block 22 to slide, root The case where gas-flow closure circle 3 is inflated is judged according to the scale on scale 23, can make clean mistake when gas-flow closure circle 3 is full of gas It is fully sealed between flange 26 on strainer 1 and sewage treatment pipeline;After the completion of inflation, gas nozzle and gas source are disconnected, rapidly to On lift crowbar 21 stretch out groove one end, 21 other end of crowbar through cross bar drive shell 15 move downward, when shell 15 by When downward active force, wedge block 16 is detached from corresponding ball 14 and falls on the shaft shoulder of 3rd sleeve 9, and shell 15 drives third Sleeve 9 moves downwardly to 9 bottom of 3rd sleeve and when slide bar 6 contacts stops applying active force to crowbar 21, by slide bar 6 towards groove The direction of bottom is pushed to mandril 8 and no longer contacts with piston 5, as shown in Figure 9;Since the air pressure inside gas-flow closure circle 3 is very big, Therefore there is a downward active force to 5 upper surface of piston, while the first pressure spring 13 also has downward active force to piston 5, it is living Plug 5 is moved downward tightly to be bonded with the inner wall of first sleeve 4, so that gas-flow closure circle 3 be made to be sealed, can be incited somebody to action after the completion of inflation Gas nozzle is blocked to be opened again when inflation next time, and sundries is avoided to enter gas nozzle blocking air intake duct 10, clean filter screen 1 or so two The gas-flow closure circle 3 at end is each filled with gas and makes the sealing of the gas-flow closure circle 3 i.e. replacement of completion filter screen 1.
The innovation of the invention consists in that:
1, the flange 26 on filter screen 1 opposite both ends and sewage treatment pipeline only needs to dismantle through being bolted, therefore when disassembly The bolt at both ends replaces filter screen 1 by way of pull, when the filter screen 1 being replaced is completely withdrawn from sewage treatment pipeline Clean filter screen 1 is installed in place, and the mounting means for comparing traditional filter screen can save many times and manpower.
2, good sealing not only can achieve to being sealed between filter screen 1 and flange 26 using gas-flow closure circle 3 Effect, and can first deflating to gas-flow closure circle 3 when replacing filter screen 1, deflated gas-flow closure circle 3 will not be Resistance is generated when pull filter screen 1, and will not generate abrasion to gas-flow closure circle 3 in pull filter screen 1, if using Conventional seals circle or gasket must will increase resistance in quick-replaceable filter screen, together to reach good sealing effect When can generate abrasion to sealing ring or gasket, cannot reuse.
3, a closed space will be formed by 3rd sleeve 9 between discontiguous first sleeve 4, second sleeve 7, from And it is connected to 3 inner cavity of gas-flow closure circle with air intake duct 10 by first sleeve 4, second sleeve 7, then through being placed in outside groove Gas nozzle is connected with high-pressure air source and is inflated to gas-flow closure circle 3, and one end that the extended groove of slide bar 6 is arranged in gas nozzle can be saved The space of groove is saved, while conveniently being inflated to gas-flow closure circle 3.
4, sealing ring can make shell 15 drive third set full of the one end for only needing to lift the stretching groove of crowbar 21 after gas Cylinder 9 moves downward, and then pushes slide bar 6 to the direction of bottom portion of groove, and piston 5 is automatic right after the disengaging of mandril 8 is contacted with piston 5 Gas-flow closure circle 3 is sealed, and whole process operates very quick.
5, the air pressure inside gas-flow closure circle 3 can be understood the moment by the cooperation of wedge block 22 and scale 23, not only side Just operation when inflation/deflation to structure, while being also easy to understand whether gas-flow closure circle 3 in 1 use process of filter screen has gas leakage Situation.
6, traditional mechanical structure has been all made of to the inflation/deflation of gas-flow closure circle 3, it is simple and convenient, and inflation/deflation Structure is arranged in inside filter screen, and occupied space is very nearly the same compared with common filter screen.
By the present invention in that not only can achieve good sealing effect with gas-flow closure circle, but also replacement can be reduced Resistance when filter screen will not generate damage to sealing ring, keep sealing ring reusable, save resource, replacement filter screen behaviour Make convenient and efficient, saves manpower and time, improve the efficiency of sewage treatment.

Claims (10)

1. a kind of fast changeable filter screen for sewage treatment, including quadratic filter net (1), which is characterized in that described Filter screen (1) left and right ends outer edge surface on be respectively provided with an annular groove (2), is cased with an inflation in each annular groove (2) Sealing ring (3) is respectively provided with a groove in the left and right ends of filter screen (1), is connected with one on each gas-flow closure circle (3) The groove of respective side is extended vertically into the front of motor of the first sleeve (4) of its connects with the internal cavities, each first sleeve (4) It is interior, there is a piston (5) in each first sleeve (4), piston (5) can move up and down in first sleeve (4) and its lower end It is external to be placed in first sleeve (4);There is one can move left and right inside it and the extended respective slot in one end in each groove Slide bar (6), be fixed with an outer diameter second sleeve equal with first sleeve (4) outer diameter (7) on each slide bar (6), each The mandril (8) of a stretching the upper end is fixed in second sleeve (7), be cased with outside each second sleeve (7) one can on move down Dynamic 3rd sleeve (9);An air intake duct (10), each air intake duct (10) and corresponding second are provided with inside each slide bar (6) Sleeve (7) connection;Slide bar (6) drives mandril (8) can push piston (5) when being moved to and contacting with piston (5) through second sleeve (7) It moves up, piston (5), which is moved up, generates interval with first sleeve (4) inner wall, when the central axis of first sleeve (4) and the When the central axis of two sleeves (7) is overlapped, 3rd sleeve (9) can be moved up, tight when 3rd sleeve (9) is moved to highest point Closely connected conjunction first sleeve (4), second sleeve (7), the inner cavity of gas-flow closure circle (3) is through first sleeve (4), second sleeve at this time (7) it is connected to air intake duct (10), mandril (8) is moved to piston (5) when disengaging with piston (5) and resets and seal first sleeve (4).
2. a kind of fast changeable filter screen for sewage treatment according to claim 1, which is characterized in that described The bottom of annular groove (2) be provided with the first through hole being connected to groove, first sleeve (4) extends vertically into recessed through first through hole In slot, first through hole upper end is provided with a up big and down small cone shaped countersink, and counterbore is provided with the taper being interference fitted with it The upper end of boss (12), boss (12) is connect with gas-flow closure circle (3), and lower end is connect with first sleeve (4), and boss is opened on (12) Equipped with the venthole for being connected to first sleeve (4) with gas-flow closure circle (3) inner cavity;The is equipped between piston (5) and boss (12) One end of one pressure spring (13), the first pressure spring (13) is connect with piston (5), and the other end is connect with boss (12);In first sleeve (4) The vertical section of portion's cavity upper section is up big and down small taper, and the vertical section of piston (5) upper section is up big and down small taper.
3. a kind of fast changeable filter screen for sewage treatment according to claim 1, which is characterized in that described First sleeve (4), be equipped with a shaft shoulder in 3rd sleeve (9), circumference insertion is multiple in 3rd sleeve (9) is located at its shaft shoulder The ball (14) of top, 3rd sleeve (9) are cased with the shell that it can be driven to move up and down (15) outside, and shell (15) upper end is solid Surely there is multiple and ball (14) one-to-one wedge block (16), wedge block (16) upper end is under close to the side of ball (14) The supreme inclined-plane being gradually inclined outwardly, the side of all wedge blocks (16) on each shell (15) close to 3rd sleeve (9) Minimum public inscribed circle diameter is less than the circumscribed circle diameter of all balls (14) on corresponding 3rd sleeve (9), each shell (15) maximum public inscribed circle diameter of all wedge blocks (16) close to the side of 3rd sleeve (9) on is greater than corresponding third The circumscribed circle diameter of all balls (14) on sleeve (9), has one between shell (15) bottom and corresponding 3rd sleeve (9) shaft shoulder Second pressure spring (17), shell (15) drive 3rd sleeve (9) to move up through the second pressure spring (17).
4. a kind of fast changeable filter screen for sewage treatment according to claim 3, which is characterized in that described Litter on be fixed with a vertical plate (18), a vertical through slot is provided on vertical plate (18), shell is fixed with one on (15) Through vertical plate (18) and the transverse slat (19) that can move up and down in vertical plate (18) through slot, the lower end surface of transverse slat (19) is provided with a water Flat T-slot, T-slot are provided with the T-shaped slider that can be horizontally slipped inside it, and a branch solid point is hinged in T-shaped slider It is scheduled on crowbar (21) on slide bar (6), the extended corresponding groove of the non-articulated end of crowbar (21).
5. a kind of fast changeable filter screen for sewage treatment according to claim 1, which is characterized in that described Filter screen (1) on the position of each gas-flow closure circle (3) nearby be provided with a horizontal sliding slot, sliding slot is provided with one can Horizontally slip inside it and wedge block (22) that inclined-plane is contacted with gas-flow closure circle (3), the inclined-plane of wedge block (22) by It is inclined outwardly under, wedge block (22) is fixed with an extended filter screen (1) and is carved on the end face of sliding slot bottom Graduated scale (23) is cased with a third pressure spring (24), one end of third pressure spring (24) and wedge block on scale (23) (22) it connects, the other end is connect with sliding slot bottom.
6. a kind of fast changeable filter screen for sewage treatment according to claim 1, which is characterized in that described Mandril (8) upper end be up-small and down-big taper, the outer diameter of mandril (8) is less than the internal diameter of second sleeve (7), and mandril (8) is through more A support rod is fixed on second sleeve (7).
7. a kind of fast changeable filter screen for sewage treatment according to claim 1, which is characterized in that described The slide bar (6) of filter screen (1) wherein side stretch out the end of respective slot in a ring, the slide bar (6) of the other side, which stretches out, to be corresponded to The end of groove is in hook-type.
8. a kind of fast changeable filter screen for sewage treatment according to claim 1, which is characterized in that described Each groove in be fixed with a baffle (25), a through-hole is provided on baffle (25), slide bar (6) can be on baffle (25) It horizontally slips in through-hole, slide bar (6) is placed in the cross section that the end cross-sectional in groove is greater than through-hole.
9. a kind of fast changeable filter screen for sewage treatment according to claim 1, which is characterized in that described Filter screen (1) filtering position thickness it is thinner than left and right ends.
10. a kind of fast changeable filter screen for sewage treatment according to claim 1, which is characterized in that institute The lower end surface of piston (5) when the upper surface of the second sleeve (7), vertical plate (18) stated is sealed lower than first sleeve (4).
CN201811640696.9A 2018-12-29 2018-12-29 A but, quick replacement's filter screen for sewage treatment Active CN109529435B (en)

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Publication number Priority date Publication date Assignee Title
US4568460A (en) * 1982-08-05 1986-02-04 Bratten Jack R Filter apparatus and method
CN202700218U (en) * 2012-08-03 2013-01-30 淮南舜泰化工有限责任公司 Stainless steel filter
CN103978655A (en) * 2014-05-26 2014-08-13 宣威市中博塑料有限公司 Device capable of quickly replacing filtration screen
CN106152325A (en) * 2015-03-26 2016-11-23 深圳地球村环保产业有限公司 A kind of filter dirt ventilator
KR20170052092A (en) * 2015-11-03 2017-05-12 한전케이피에스 주식회사 Sealing device for drive shaft of debris filter and installation method thereof
CN206705900U (en) * 2017-03-29 2017-12-05 惠州市恒源环保技术开发有限公司 A kind of sewage disposal device for being convenient for changing screen pack
CN107487536A (en) * 2017-09-23 2017-12-19 柴卓 The holding vessel of metal surface efficient antiseptic
CN107789881A (en) * 2017-11-17 2018-03-13 盱眙县生产力促进中心 A kind of smart home sewage-treatment plant of replaceable filter screen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4568460A (en) * 1982-08-05 1986-02-04 Bratten Jack R Filter apparatus and method
CN202700218U (en) * 2012-08-03 2013-01-30 淮南舜泰化工有限责任公司 Stainless steel filter
CN103978655A (en) * 2014-05-26 2014-08-13 宣威市中博塑料有限公司 Device capable of quickly replacing filtration screen
CN106152325A (en) * 2015-03-26 2016-11-23 深圳地球村环保产业有限公司 A kind of filter dirt ventilator
KR20170052092A (en) * 2015-11-03 2017-05-12 한전케이피에스 주식회사 Sealing device for drive shaft of debris filter and installation method thereof
CN206705900U (en) * 2017-03-29 2017-12-05 惠州市恒源环保技术开发有限公司 A kind of sewage disposal device for being convenient for changing screen pack
CN107487536A (en) * 2017-09-23 2017-12-19 柴卓 The holding vessel of metal surface efficient antiseptic
CN107789881A (en) * 2017-11-17 2018-03-13 盱眙县生产力促进中心 A kind of smart home sewage-treatment plant of replaceable filter screen

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