CN205495096U - Blowdown subassembly and adopt self -cleaning filter of this blowdown subassembly - Google Patents
Blowdown subassembly and adopt self -cleaning filter of this blowdown subassembly Download PDFInfo
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- CN205495096U CN205495096U CN201620300496.9U CN201620300496U CN205495096U CN 205495096 U CN205495096 U CN 205495096U CN 201620300496 U CN201620300496 U CN 201620300496U CN 205495096 U CN205495096 U CN 205495096U
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- soil pick
- pollution
- absorbing nozzle
- sucking tube
- dirt sucking
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Abstract
The utility model discloses a blowdown subassembly and adopt self -cleaning filter of this blowdown subassembly, this blowdown subassembly be including the sewage suction pipe in built -in soil pick -up chamber, the last connecting hole that is equipped with built -in screw thread of sewage suction pipe, be equipped with on the connecting hole with the soil pick -up mouth of soil pick -up chamber intercommunication, the soil pick -up mouth is including the regulation portion that is equipped with the external screw thread, regulation portion stretches into in the connecting hole and sets up rather than threaded connection, the cover is equipped with and reciprocates and fixed adjusting nut along regulation portion in the regulation portion, or this blowdown subassembly is including the sewage suction pipe in built -in soil pick -up chamber, sewage suction pipe is last be equipped with with the soil pick -up mouth of soil pick -up chamber intercommunication, the middle part of soil pick -up mouth is equipped with the bellows, the bellows overcoat is equipped with the clamp that is used for adjusting ripple pipe range degree, is applicable to the work piece that has the dimensional deviation.
Description
Technical field
The utility model relates to filtration, purification field, particularly to a kind of blowdown assembly and the self-cleaning filter that uses this blowdown assembly.
Background technology
Self-cleaning filter; it is a kind of to utilize filter screen directly to intercept the impurity in water; remove water body recovery technology, particulate matter, reduce turbidity, purify water; minimizing system dirt, bacterium algae, corrosion etc. produce; with the precision equipment purified water and the system miscellaneous equipment of protection normally works, water is entered self-cleaning filter body by water inlet, owing to intellectuality relates to; system can identify that impurity deposits degree, to blowdown valve signal automatic pollution discharge automatically.
nullAuthorization Notice No. is CN204699486U、Authorized announcement date is that the Chinese patent on October 14th, 2015 discloses a kind of Full-automatic self-cleaning filter，Including filter body，The upper end of filter body is provided with power motor，The side of filter body is provided with water inlet pipe and outlet pipe，Coarse filtration net and thin screen pack it is provided with in filter body，It is provided with portable plate between coarse filtration net and thin screen pack，Portable plate is arranged on the inwall of filter body，In the upside of thin screen pack, fixed plate is installed，Rotation bar has been passed in fixed plate，Rotate bar to be rotated by power motor，Several pollution-absorbing nozzle is distributed on bar rotating，And pollution-absorbing nozzle communicates with the inner passage of rotation bar，A blowdown chamber is formed between the top and fixed plate of filter body，It is positioned on the rotation bar outer wall of that section of blowdown chamber and offers multiple mudhole，Mudhole communicates with blowdown chamber，Blowdown chamber communicates with blowoff valve.
It is in place of the deficiencies in the prior art: for the impurity on the thin screen pack of maximized suction, the opening of pollution-absorbing nozzle (after installing, it is fixed with rotation bar and its relative position is non-adjustable) is typically set as abutting with thin screen pack, or opening is arranged near thin screen pack；But during processing workpiece, pollution-absorbing nozzle, rotation bar, thin screen pack all there may be certain dimensional discrepancy, this may cause thin screen pack and the distance rotated between bar are less than or are much larger than the length of pollution-absorbing nozzle, the former will cause pollution-absorbing nozzle cannot be arranged between rotation bar and thin screen pack, although the latter can realize installing, but after An Zhuaning there is a certain distance in pollution-absorbing nozzle and thin screen pack, its soil pick-up decreased effectiveness.
Therefore, the blowdown assembly developing a kind of workpiece (include pollution-absorbing nozzle, rotate bar and thin screen pack) being applicable to exist dimensional discrepancy has preferable using value.
Utility model content
First purpose of the present utility model is to provide a kind of blowdown assembly, which solves and there is the workpiece of dimensional discrepancy and affect filter and install and the problem of soil pick-up effect, has the effect of the workpiece being applicable to exist dimensional discrepancy.
Above-mentioned technical purpose of the present utility model has the technical scheme that
A kind of blowdown assembly, including the dirt sucking tube in built-in soil pick-up chamber, described dirt sucking tube is provided with the connecting hole of disposed thread, and described connecting hole is provided with the pollution-absorbing nozzle connected with soil pick-up chamber, described pollution-absorbing nozzle includes being provided with externally threaded regulation portion, and described regulation portion stretches in connecting hole and threadeds setting with it；The adjusting nut that can move up and down along regulation portion and fix it is arranged with in described regulation portion.
Using said structure, regulation portion is after stretching in connecting hole, and both are connected by bolt, and owing to not being fixedly installed the locating part stretching into connecting hole degree for limiting regulation portion in regulation portion, so under without other influences, regulation portion can move up and down along connecting hole；Again because being arranged with, in regulation portion, the adjusting nut that can move freely, after the link position in regulation portion Yu connecting hole determines, the link position in regulation portion with connecting hole can be limited by adjusting nut.Because the total length of regulation portion and pollution-absorbing nozzle is fixing, so the one end away from dirt sucking tube can be adjusted along connecting hole up and down motion along with regulation portion to the vertical range on dirt sucking tube side surface on pollution-absorbing nozzle, i.e. pollution-absorbing nozzle and the distance treated between soil pick-up parts (screen pack as on filter) is adjustable, it is applicable to due to the workpiece (include pollution-absorbing nozzle, rotate bar and treat soil pick-up parts) of the condition impacts such as processing, its flexibility that can improve installation further and soil pick-up effect.
More preferably: on described adjusting nut, the one end near dirt sucking tube is provided with seal washer.
Use said structure, although together with dirt sucking tube can be bolted with pollution-absorbing nozzle, but being available for, owing to junction there may be part, the gap that fluid passes through, this will affect soil pick-up effect；And one end of close dirt sucking tube is provided with seal washer on adjusting nut, after installation, seal washer is located between adjusting nut and dirt sucking tube, even if there being segment fluid flow to overflow from the junction in connecting hole and regulation portion, this segment fluid flow also cannot penetrate the seal washer being centered around around connecting hole to enter in external environment, keep the pressure differential between soil pick-up chamber and external environment, improve soil pick-up ability further.
More preferably: on described pollution-absorbing nozzle, the one end away from dirt sucking tube is provided with suction section, and described suction section is provided with the soil pick-up hole connected with soil pick-up chamber；Described suction section is round table-like, and its width is extremely being gradually reduced away from the direction of pollution-absorbing nozzle along near pollution-absorbing nozzle.
Use said structure, the width of suction section is extremely being gradually reduced away from the direction of pollution-absorbing nozzle along near pollution-absorbing nozzle, the impurity in external environment is directly aspirated in its narrow one end, in the case of same external and internal pressure difference, the ability of its suction is higher, and postmedian uses the form gradually widened, one end after widening and pollution-absorbing nozzle coupling is connected, and it can resist in aspiration procedure the impulsive force to its inwall.
More preferably: the outer rim in described soil pick-up hole is provided with neonychium, described neonychium is made up of elastomeric material.
In order to improve soil pick-up ability, general it is set as pollution-absorbing nozzle abutting with thin screen pack or opening is arranged near thin screen pack, and under the immersion of fluid, certain expansion that pollution-absorbing nozzle and thin screen pack can exist, after therefore soaking there is the possibility directly contacted with thin screen pack in pollution-absorbing nozzle；And part treats that soil pick-up parts design due to material and shape etc., pollution-absorbing nozzle may be caused certain damage by it, particularly under the conditions of high-speed rotation, pollution-absorbing nozzle inherently has certain impulse force, if pollution-absorbing nozzle with treat that soil pick-up parts directly impact, the damage caused may affect soil pick-up work normally carry out；Use said structure, be avoided that pollution-absorbing nozzle and treat the direct collision of soil pick-up parts, protecting pollution-absorbing nozzle.
More preferably: described soil pick-up hole includes main sucker and at least one secondary sucker, and the center of circle of described main sucker is located on axial line or its extended line of pollution-absorbing nozzle.
Use said structure, multiple location foreign substances, it is to avoid the blocking of single channel line causes soil pick-up work cannot cause situation about carrying out；The most main sucker is located on axial line or its extended line of pollution-absorbing nozzle, and the effect to pollution-absorbing nozzle of aspirating is more uniform, and the impulse force that pollution-absorbing nozzle is subject to balances, and increases its service life.
More preferably: described secondary sucker has several, and it is symmetrical arranged along main sucker；The aperture of described secondary sucker is less than the aperture of main sucker.
Use said structure, suction process can be carried out from multi-direction soil pick-up parts for the treatment of；The aperture of secondary sucker is less than the aperture of main sucker, and in the case of same pressure differential, the suction capactity of small-bore is higher, and therefore secondary sucker can aspirate the impurity of farther place, improves soil pick-up ability further.
Second purpose of the present utility model is to provide a kind of blowdown assembly.
Above-mentioned technical purpose of the present utility model has the technical scheme that
A kind of blowdown assembly, including the dirt sucking tube in built-in soil pick-up chamber, described dirt sucking tube is provided with the pollution-absorbing nozzle connected with soil pick-up chamber, and the middle part of described pollution-absorbing nozzle is provided with bellows, is arranged with the clip for regulating Bellows Length outside described bellows.
Using said structure, bellows can occur certain folding (distance of bellows piece is adjustable), carry out clip by the bellows of doubling poststack and fix, and fixes the distance of the bellows piece after its regulation；Regulated on pollution-absorbing nozzle away from one end of dirt sucking tube to the vertical range on dirt sucking tube side surface by which, i.e. pollution-absorbing nozzle and the distance treated between soil pick-up parts (screen pack as on filter) is adjustable, it is applicable to due to the workpiece (include pollution-absorbing nozzle, rotate bar and treat soil pick-up parts) of the condition impacts such as processing, its flexibility that can improve installation further and soil pick-up effect.
More preferably: described clip includes two garter springs being located on bellows, between described garter spring, clamping or bolt connect.
Use said structure, connected by the clamping between two garter springs or bolt, part bellows can be fixed therein, and when garter spring is extruded by this part bellows in time, it is uniform that it acts on the power on two garter springs, and this fixed relationship is survivable.
More preferably: between described garter spring, be provided with cushion pad.
When part bellows is limited between two garter springs, garter spring has certain extruding force to bellows, and it exists the possibility destroying bellows；Use said structure, these extruding forces of cushion pad available buffer, reduce the possibility of bellows bursts.
3rd purpose of the present utility model is to provide a kind of self-cleaning filter.
Above-mentioned technical purpose of the present utility model has the technical scheme that
A kind of self-cleaning filter, including thin screen pack, is provided with described blowdown assembly in described thin screen pack.
In sum, the utility model has the advantages that
Spacing to the connection in regulation portion and connecting hole by regulation portion and the cooperation of connecting hole and the adjusting nut that can move up and down along regulation portion, after the link position in regulation portion Yu connecting hole determines, the link position in regulation portion with connecting hole can be limited by adjusting nut, so the one end away from dirt sucking tube can be adjusted along connecting hole up and down motion along with regulation portion to the vertical range on dirt sucking tube side surface on pollution-absorbing nozzle, i.e. pollution-absorbing nozzle and the distance treated between soil pick-up parts (screen pack as on filter) is adjustable, it is applicable to owing to the workpiece of the condition impacts such as processing (includes pollution-absorbing nozzle, rotate bar and treat soil pick-up parts), its flexibility that can improve installation further and soil pick-up effect；Connected by the bolt between dirt sucking tube and pollution-absorbing nozzle and one end of close dirt sucking tube is provided with seal washer on adjusting nut, the fluid in soil pick-up chamber can be substantially avoided and flow in external environment, keep the pressure differential between soil pick-up chamber and external environment, improve soil pick-up ability further；By arranging round table-like suction section, and it is arranged with several apertures secondary sucker less than main sucker along main sucker, the impurity in external environment is directly aspirated in the narrow one end of suction section, in the case of same external and internal pressure difference, the ability of its suction is higher, and postmedian uses the form gradually widened, one end after widening is connected with pollution-absorbing nozzle coupling, it can resist in aspiration procedure the impulsive force to its inwall, the aperture of secondary sucker is less than the aperture of main sucker, in the case of same pressure differential, the suction capactity of small-bore is higher, therefore secondary sucker can aspirate the impurity of farther place, improve soil pick-up ability further；
The bellows used can occur certain folding (distance of bellows piece is adjustable), carries out clip by the bellows of doubling poststack and fixes, and fixes the distance of the bellows piece after its regulation；Regulated on pollution-absorbing nozzle away from one end of dirt sucking tube to the vertical range on dirt sucking tube side surface by which, i.e. pollution-absorbing nozzle and the distance treated between soil pick-up parts (screen pack as on filter) is adjustable, it is applicable to due to the workpiece (include pollution-absorbing nozzle, rotate bar and treat soil pick-up parts) of the condition impacts such as processing, its flexibility that can improve installation further and soil pick-up effect；Clamping or bolt between two garter springs connect, and can be fixed therein by part bellows, and when garter spring is extruded by this part bellows in time, it is uniform that it acts on the power on two garter springs, and this fixed relationship is survivable；When part bellows is limited between two garter springs, garter spring has certain extruding force to bellows, and it exists the possibility destroying bellows；These extruding forces of cushion pad available buffer, reduce the possibility of bellows bursts.
Accompanying drawing explanation
Fig. 1 is the perspective view of embodiment 1；
Fig. 2 is the A portion enlarged diagram of Fig. 1；
Fig. 3 is the cross-sectional view of embodiment 1；
Fig. 4 is the perspective view of embodiment 2；
Fig. 5 is the B portion enlarged diagram of Fig. 4；
Fig. 6 is the cross-sectional view of embodiment 2；
Fig. 7 is the perspective view of embodiment 3；
Fig. 8 is the cross-sectional view of embodiment 3.
In figure, 1, dirt sucking tube；2, soil pick-up chamber；3, mudhole；4, connecting hole；5, pollution-absorbing nozzle；6, regulation portion；7, adjusting nut；8, seal washer；9, suction section；10, neonychium；11, soil pick-up hole；111, main sucker；112, secondary sucker；12, connecting portion；13, bellows；14, clip；141, garter spring；142, fixing bolt；15, cushion pad；16, housing；17, accommodating cavity；18, filter septum；19, blowdown dividing plate；20, coarse filtration room；21, thin filter chamber；22, blowdown room；23, coarse filtration net；24, water inlet；25, thin screen pack；26, delivery port；27, rotation slot；28, installing rack；29, axle is installed；30, working chamber；31, motor；32, rotary shaft；33, hydraulic reverse flushing valve；34, urgent backwash valve.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
This specific embodiment is only to explanation of the present utility model; it is not to restriction of the present utility model; the present embodiment can be made after reading this specification by those skilled in the art as required does not has the amendment of creative contribution, but as long as all being protected by Patent Law in right of the present utility model.
Embodiment 1: a kind of blowdown assembly, as shown in Figure 1 to Figure 3.With reference to Fig. 1, including columned dirt sucking tube 1, offer soil pick-up chamber 2(in dirt sucking tube 1 with reference to Fig. 3).Offering mudhole 3 on the side surface of dirt sucking tube 1 one end, mudhole 3 connects with soil pick-up chamber 2.
See figures.1.and.2, the side surface of dirt sucking tube 1 is equidistantly provided with the connecting hole 4 of several disposed thread, the adjacent staggered both sides being located at dirt sucking tube 1 of connecting hole 4.Connecting hole 4 is provided with externally threaded regulation portion 6 and threadeds with pollution-absorbing nozzle 5, and regulation portion 6 is arranged with adjusting nut 7, in regulation portion 6 stretches into connecting hole 4 and threadeds with it.On adjusting nut 7, the one end near dirt sucking tube 1 is provided with seal washer 8.During use, regulation portion 6 can be stretched into connecting hole 4(with reference to Fig. 3) internal thread connection, and tighten adjusting nut 7, then regulation portion 6 is fixed with dirt sucking tube 1, and owing to its bolt connects and the existence of seal washer 8, its sealing is preferable；Further, since adjusting nut 7 can move up and down along regulation portion 6, therefore its degree that regulation portion 6 can stretch into soil pick-up chamber 2 is adjusted, and it is applicable to being connected between the dirt sucking tube 1 of sizes and pollution-absorbing nozzle 5.
Seeing figures.1.and.2, on pollution-absorbing nozzle 5, the one end away from dirt sucking tube 1 is provided with suction section 9, and suction section 9 is round table-like, and its width is being gradually reduced to the direction away from pollution-absorbing nozzle 5 along near pollution-absorbing nozzle 5.In suction section 9, the one end away from dirt sucking tube 1 is provided with neonychium 10 and soil pick-up hole 11, and neonychium 10 is located at the outer rim in soil pick-up hole 11.Neonychium 10 is made up of elastomeric material.Soil pick-up hole 11 connects with soil pick-up chamber 2, and soil pick-up hole 11 includes a main sucker 111 and several are along the symmetrically arranged secondary sucker 112 of main sucker 111, and the aperture of secondary sucker 112 is less than the aperture of main sucker 111.The center of circle of main sucker 111 is located on axial line or its extended line of dirt sucking tube 1.
During use, impurity is sucked up in soil pick-up hole 11, and most impurity can be aspirated by main sucker 111, and be symmetrically arranged at the secondary sucker 112 by main sucker 111 and can carry out adsorbing thus improve the efficiency of foreign substances further by the impurity in External Environment from multiple angles；And main sucker 111 and secondary sucker 112 with the use of, even if one of them hole plug, suction operation remains to normally carry out；After impurity is sucked up in soil pick-up hole 11, it is transferred in soil pick-up chamber 2 by pollution-absorbing nozzle 5, and impurity is discharged eventually through mudhole 3.
Embodiment 2:
A kind of blowdown assembly, as shown in Figures 4 to 6.With reference to Fig. 4, including columned dirt sucking tube 1, offer soil pick-up chamber 2(in dirt sucking tube 1 with reference to Fig. 6).Offering mudhole 3 on the side surface of dirt sucking tube 1 one end, mudhole 3 connects with soil pick-up chamber 2.
With reference to Fig. 4 and Fig. 5, the side surface of dirt sucking tube 1 is equidistantly provided with the connecting hole 4(of several disposed thread with reference to Fig. 6), the adjacent staggered both sides being located at dirt sucking tube 1 of connecting hole 4.Connecting hole 4 with the connecting portion 12(being located at pollution-absorbing nozzle 5 bottom with reference to Fig. 6) bolt is connected.The middle part of pollution-absorbing nozzle 5 is provided with bellows 13, is arranged with clip 14 outside bellows 13.Clip 14 includes two garter springs 141 being located on bellows 13, placement part bellows 13 between two garter springs 141.Two garter springs 141 are provided with the screwed hole of symmetry, and two garter springs 141 are fixed together by fixing bolt 142 through screwed hole.It is provided with cushion pad 15 between two garter springs 141.During use, the length of the part bellows 13 placed between two garter springs 141 can be regulated according to demand, after regulating, utilize fixing bolt 142 to be fixed together by two garter springs 141 through screwed hole, owing to its bolt connects and the existence of cushion pad 15, it is fixing preferable and is difficult to impaired；Additionally, the adjustable length of the part bellows 13 owing to placing between two garter springs 141, therefore it can be adjusted away from the distance between one end of dirt sucking tube 1 on dirt sucking tube 1 to pollution-absorbing nozzle 5, and it is applicable to being connected between the dirt sucking tube 1 of sizes and pollution-absorbing nozzle 5.
With reference to Fig. 4 and Fig. 5, on pollution-absorbing nozzle 5, the one end away from dirt sucking tube 1 is provided with suction section 9, and suction section 9 is round table-like, and its width is being gradually reduced to the direction away from pollution-absorbing nozzle 5 along near pollution-absorbing nozzle 5.In suction section 9, the one end away from dirt sucking tube 1 is provided with neonychium 10 and soil pick-up hole 11, and neonychium 10 is located at the outer rim in soil pick-up hole 11.Neonychium 10 is made up of elastomeric material.Soil pick-up hole 11 connects with soil pick-up chamber 2, and soil pick-up hole 11 includes a main sucker 111 and several are along the symmetrically arranged secondary sucker 112 of main sucker 111, and the aperture of secondary sucker 112 is less than the aperture of main sucker 111.The center of circle of main sucker 111 is located on axial line or its extended line of dirt sucking tube 1.Impurity is sucked up in soil pick-up hole 11, and most impurity can be aspirated by main sucker 111, and be symmetrically arranged at the secondary sucker 112 by main sucker 111 and can carry out adsorbing thus improve the efficiency of foreign substances further by the impurity in External Environment from multiple angles；And main sucker 111 and secondary sucker 112 with the use of, even if one of them hole plug, suction operation remains to normally carry out；After impurity is sucked up in soil pick-up hole 11, it is transferred in soil pick-up chamber 2 by pollution-absorbing nozzle 5, and impurity is discharged eventually through mudhole 3.
Embodiment 3: a kind of blowdown assembly, is with the difference of embodiment 2, is connected by the bolt between two garter springs 141 and makes clamping into.
Embodiment 4: a kind of self-cleaning filter, as shown in Fig. 7 to Fig. 8.With reference to Fig. 7 and Fig. 8, including housing 16, in housing 16, offer accommodating cavity 17.It is provided with filter septum 18 and blowdown dividing plate 19, filter septum 18 and blowdown dividing plate 19 in accommodating cavity 17 and accommodating cavity 17 is separated in order coarse filtration room 20, thin filter chamber 21 and blowdown room 22.
With reference to Fig. 7 and Fig. 8, coarse filtration room 20 is located at the side of filter septum 18.Being provided with the coarse filtration net 23 that closed loop is arranged in coarse filtration room 20, it connects with water inlet 24.
With reference to Fig. 7 and Fig. 8, thin filter chamber 21 is located between filter septum 18 and blowdown dividing plate 19.Being provided with, in thin filter chamber 21, the thin screen pack 25 that closed loop is arranged, thin filter chamber 21 connects with delivery port 26.One end of coarse filtration net 23 and one end clamping of thin screen pack 25.The junction of coarse filtration net 23 and thin screen pack 25 is provided with a circle rotation slot 27 and several installing racks 28, and in one end of installing rack 28 is located at rotation slot 27 and installing rack 28 can rotate along rotation slot 27, the other end of installing rack 28 is provided with installation axle 29.Offer working chamber 30 in thin screen pack 25, in working chamber 30, be provided with blowdown assembly as described in Example 1.One end of one end and dirt sucking tube 1 of installing axle 29 connects, and installs axle 29 and dirt sucking tube 1 occurs synchronous axial system.
With reference to Fig. 7 and Fig. 8, blowdown room 22 is located at the side of blowdown dividing plate 19, and it is located at not homonymy with thin filter chamber 21.The one end offering mudhole 3 on dirt sucking tube 1 through blowdown dividing plate 19 and is located in blowdown room 22, and it is connected by rotary shaft 32 with motor 31, and motor 31 drives dirt sucking tube 1 to rotate by rotary shaft 32.Hydraulic reverse flushing valve 33 and at least one urgent backwash valve 34 is offered on blowdown room 22.
When filtration, purification, liquid enters coarse filtration room 20 by water inlet 24, liquid carries out coarse filtration through coarse filtration net 23, outside oarse-grained impurity is trapped in, in liquid enters the working chamber 30 of thin screen pack 25 through installing rack 28 subsequently, liquid again passes through thin screen pack 25 and carries out secondary filter, and the liquid after secondary filter is discharged by delivery port 26 subsequently；
Along with the carrying out of filtration, purification, impurity builds up the side on thin screen pack 25 near dirt sucking tube 1, and therefore the both sides at thin screen pack 25 are the formation of a pressure reduction；When this pressure reduction (△ P) reaches the preset value in common pressure reduction indicator, automatic cleaning process will be started, water purification supply around here is not interrupted: opens hydraulic reverse flushing valve 33 and is discharged by water, hydraulic pressure in blowdown room 22 and soil pick-up chamber 2 significantly declines, between dirt sucking tube 1 and blowdown room 22, form a soil pick-up process from there through pollution-absorbing nozzle 5, and discharged by hydraulic reverse flushing valve 33；Meanwhile, motor 31 drives dirt sucking tube 1 circumferentially to rotate, and improves cleaning performance and the speed of impurity on thin screen pack 25 further.
Embodiment 5: a kind of self-cleaning filter, is with the difference of embodiment 4, it uses the blowdown assembly of embodiment 2.
Embodiment 6: a kind of self-cleaning filter, is with the difference of embodiment 4, it uses the blowdown assembly of embodiment 3.
Claims (9)
1. a blowdown assembly, dirt sucking tube (1) including built-in soil pick-up chamber (2), described dirt sucking tube (1) is provided with the connecting hole (4) of disposed thread, described connecting hole (4) is provided with the pollution-absorbing nozzle (5) connected with soil pick-up chamber (2), it is characterized in that, described pollution-absorbing nozzle (5) includes being provided with externally threaded regulation portion (6), and described regulation portion (6) is stretched in connecting hole (4) and threadeds setting with it；It is arranged with on described regulation portion (6) and can move up and down along regulation portion (6) and fixing adjusting nut (7).
Blowdown assembly the most according to claim 1, it is characterised in that the upper one end near dirt sucking tube (1) of described adjusting nut (7) is provided with seal washer (8).
Blowdown assembly the most according to claim 1, it is characterised in that on described pollution-absorbing nozzle (5), the one end away from dirt sucking tube (1) is provided with suction section (9), and described suction section (9) is provided with the soil pick-up hole (11) connected with soil pick-up chamber (2)；Described suction section (9) is round table-like, and its width is being gradually reduced to the direction away from pollution-absorbing nozzle (5) along near pollution-absorbing nozzle (5).
Blowdown assembly the most according to claim 3, it is characterised in that the outer rim of described soil pick-up hole (11) is provided with neonychium (10), described neonychium (10) is made up of elastomeric material.
Blowdown assembly the most according to claim 3, it is characterised in that described soil pick-up hole (11) includes main sucker (111) and at least one secondary sucker (112), and the center of circle of described main sucker (111) is located on axial line or its extended line of dirt sucking tube (1).
6. a blowdown assembly, dirt sucking tube (1) including built-in soil pick-up chamber (2), described dirt sucking tube (1) is provided with the pollution-absorbing nozzle (5) connected with soil pick-up chamber (2), it is characterized in that, the middle part of described pollution-absorbing nozzle (5) is provided with bellows (13), is arranged with the clip (14) for regulating bellows (13) length outside described bellows (13).
Blowdown assembly the most according to claim 6, it is characterised in that described clip (14) includes two garter springs (141) being located on bellows (13), between described garter spring (141), clamping or bolt connect.
Blowdown assembly the most according to claim 7, it is characterised in that be provided with cushion pad (15) between described garter spring (141).
9. a self-cleaning filter, including thin screen pack (25), it is characterised in that be provided with the blowdown assembly as described in any one of claim 1-8 in described thin screen pack (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620300496.9U CN205495096U (en) | 2016-04-11 | 2016-04-11 | Blowdown subassembly and adopt self -cleaning filter of this blowdown subassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620300496.9U CN205495096U (en) | 2016-04-11 | 2016-04-11 | Blowdown subassembly and adopt self -cleaning filter of this blowdown subassembly |
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| Publication Number | Publication Date |
|---|---|
| CN205495096U true CN205495096U (en) | 2016-08-24 |
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| CN201620300496.9U Active CN205495096U (en) | 2016-04-11 | 2016-04-11 | Blowdown subassembly and adopt self -cleaning filter of this blowdown subassembly |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112403170A (en) * | 2020-11-27 | 2021-02-26 | 浙江迎丰科技股份有限公司 | Oil fume purification system of setting machine |
-
2016
- 2016-04-11 CN CN201620300496.9U patent/CN205495096U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112403170A (en) * | 2020-11-27 | 2021-02-26 | 浙江迎丰科技股份有限公司 | Oil fume purification system of setting machine |
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