CN208642187U - A kind of sweeper dust removal by filtration device - Google Patents

Abstract

The utility model discloses a kind of sweeper dust removal by filtration devices, it is that dirt chamber has been divided into cabinet, dustless chamber, filter chamber, it is connected to chamber, air duct switching mechanism, airflow filtering mechanism, cartridge filter and fixed pulse mechanism and filtering roof door fixed mechanism, airflow filtering mechanism is that dirt chamber has been transported to after filtering dust-contained airflow, air channel conversion device is will have dirt intracavitary dry, wet gas current passes through different channel flowings respectively, cartridge filter and fixed pulse mechanism are arranged in filter chamber, dustless chamber is sent into after dry gas stream is filtered, it is connected to chamber discharge, fixed pulse mechanism is used for the cartridge filter deashing in cartridge filter and fixed pulse mechanism, filtering roof door fixed mechanism is the filtering roof door being fixed on cabinet, for repairing replacement cartridge filter and fixed pulse mechanism, the utility model solves existing sweeper cleaning work fugitive dust Greatly, the problems such as filtering is not thorough, and deashing is not thorough, and air duct transformed space is big, cost is high, sealing is not thorough, filter cylinder installing and dismounting is inconvenient.

Description

A kind of sweeper dust removal by filtration device

Technical field

The utility model relates to belong to road cleaning operating equipment technical field, it is related to a kind of sweeper mistake of scavenging vehicle Filtering dust collecting device.

Background technique

With the gradually reinforcement that China environmental protection is realized, living standards of the people and the raising that quality of life is required, clearly Sweep vehicle using more and more extensive.Its dry-type road sweeper, only absorbing sweeper truck when due to cleaning work, are not needed with water, it is deep by It easily freezes area and water-deficient area is liked.And for such sweeping machine, maximum technical barrier is just in dedusting filter On.If dust removal by filtration can not meet requirement, suction deficiency will be generated, fugitive dust, cause secondary pollution.Currently, such The filtering of sweeping machine is generally filter screen, filter double-filtration, and layout pattern is usually divided into two kinds again, the first is filtering Net, blower and its attachment, filter, second is filter screen, filter, blower and its attachment.The first filtration patterns one Divide rubbish by strainer, be directly entered blower and its attachment, more serious to blower abrasion, the service life is shorter；Second of filter-type Formula rubbish is directly entered in filter by filter screen, is caused filter and is easy blocking, abrasion has not only aggravated deashing Difficulty, more affect the service life of deduster.

The purge mode of filter largely uses pulse dust removal at present, i.e. electromagnetic impulse valve is directly blown filter, Achieve the purpose that dedusting.Such dedusting method, efficiency are relatively low.

When working on rainy day or wet road, the front of filter can be provided with conversion air duct switch.I.e. when dry When formula works, this conversion air duct switch is opened, and air-flow passes through filter；When wet type work, this conversion air duct switch is closed, gas Stream is without filter.At present in the conversion of air duct, using two kinds of control modes, the first is separated using Pneumatic gate valve Control, second is the gas outlet that dry gas stream is controlled only with Pneumatic gate valve, and air inlet then blow-by.

For the first conversion regime, need three Pneumatic gate valves, since related components are more, the space needed It will be very big and also complex in control system.So manufacturing cost is higher；Space is big, it is not easy to realize；Use fiber crops It is tired；Sealing effect cannot ensure;Failure rate is higher.

For second of conversion regime, need two Pneumatic gate valves, although being reduced compared with the first, there is also peaces Dress space is big, sealing effect cannot ensure, manufacturing cost is high.Importantly, due to only using Pneumatic gate valve hermetically drying gas The gas outlet of stream, air inlet blow-by, so after the rain, the water spray damp grounds operation such as operation when, filter element can be become Humidity can not work normally its dust pelletizing system.

For the maintenance door of filter cylinder, fixed form is fixed by bolts at present, is dismounted relatively difficult.

Summary of the invention

The purpose of this utility model is that improve the deficiency of prior art and provide a kind of sweeper dust removal by filtration device, Solve that existing sweeper cleaning work fugitive dust is big, and filtering is not thorough, and deashing is not thorough, air duct transformed space is big, cost is high, close The problems such as envelope is not thorough, filter cylinder installing and dismounting is inconvenient.

The purpose of this utility model is achieved in that a kind of sweeper dust removal by filtration device, its main feature is that in cabinet It has been divided into dirt chamber, dustless chamber, filter chamber, connection chamber, air duct switching mechanism, airflow filtering mechanism, cartridge filter and fixed pulse Mechanism and filtering roof door fixed mechanism, in which:

The airflow filtering mechanism is that dust-contained airflow is carried out primary filtration dedusting, and filtered air-flow has been transported to dirt Chamber；

The air channel conversion device is that dry, the wet gas current that will have dirt intracavitary pass through different channel flowings respectively, will be done Air-flow is transported to filter chamber, or wet gas current is fed directly to connection chamber；

The cartridge filter and fixed pulse mechanism are arranged in filter chamber, dry for carrying out air duct switching mechanism conveying Air-flow is sent into dustless chamber after being filtered, subsequently into connection chamber discharge, fixed pulse mechanism is used for cartridge filter and fixed arteries and veins Cartridge filter deashing in punch mechanism；

The filtering roof door fixed mechanism is the filtering roof door being fixed on cabinet, for repairing replacement cartridge filter And fixed pulse mechanism.

In order to further realize the purpose of this utility model, can be the airflow filtering mechanism include filter screen, into Air port, deduster, the air inlet of deduster are equipped with filter screen, and the air outlet of deduster has connected dirt chamber, described Deduster is horizontal type centrifugal deduster or centrifugal vertical type dust-cleaning equipment.

In order to further realize the purpose of this utility model, can be the air channel conversion device is to have dirt chamber to lead to respectively Wind passage mouth overly moist be connected to chamber connection, by conversion wind passage mouth and filter chamber dusty gas air inlet connection, filter chamber Clean gas air outlet is connected to dustless chamber, and dustless chamber is connected to by dry-air blast road junction with chamber is connected to, and is pacified at the dry-air blast road junction Equipped with dry-air blast road junction sealing clamp, twoport is installed at wet wind road junction, conversion wind passage mouth and shares sealing clamp, reciprocator It connects dry-air blast road junction sealing clamp and twoport shares sealing clamp movement；

The reciprocator drives dry-air blast road junction sealing clamp and twoport to share sealing clamp movement, realizes dry-air blast Road junction sealing clamp seals dry-air blast road junction, twoport shares sealing clamp sealing conversion wind passage mouth, opens wet wind road junction or twoport It shares sealing clamp sealing wet wind road junction, open conversion wind passage mouth and dry-air blast road junction.

In order to further realize the purpose of this utility model, one end that the reciprocator is power cylinder can be It is fixed by bolt or pin shaft, the other end is connect by one end axis of pin shaft and upper connecting rod, lower link, the other end of upper connecting rod and dry Wind passage mouth sealing clamp is hinged, and the other end and twoport of lower link share the hinged of sealing clamp

In order to further realize the purpose of this utility model, it can be the pin shaft and be mounted on guiding device, with reality Cash sale axis is moved along defined track.

In order to further realize the purpose of this utility model, can be at dry-air blast road junction, wet wind road junction, conversion wind passage mouth It is separately installed with sealing strip.

In order to further realize the purpose of this utility model, it includes solid for can be the cartridge filter and fixed pulse mechanism Determine nut, sunpender, upper fixes sleeve, Venturi tube, filter chamber top plate, sealing plate, gas-storing pipe, pulse valve, lower fixing sleeve, filter Cylinder, upper fixes sleeve sealing plate are connect with filter chamber top plate seal, and sunpender passes through filter cylinder, are fixed in the top insertion of sunpender In the sleeve of sleeve, tail end passes through the bottom plate of filter cylinder and is fixed with fixture nut, and the tail end of sunpender is inserted into lower fixing sleeve, air storage Pipe is connect with pulse valve, and the blowing mouth of pulse valve is mounted on the top of filter cylinder center line, and text is equipped between pulse valve and filter cylinder Family name's pipe, Venturi tube are fixed in fixes sleeve.

In order to further realize the purpose of this utility model, can be Venturi tube and pulse valve port has certain difference in height, Its difference in height is between 2-100mm.

In order to further realize the purpose of this utility model, can be the filtering roof door fixed mechanism includes that setting exists Pressure hand, handle, roof door, pressing plate, air duct roof door, pin shaft, roll-over protective structure, roll-over protective structure axis, sealing strip on cabinet, the roof door, Air duct roof door is mounted on cabinet by pin shaft, and sealing strip is equipped at roof door, air duct roof door, is pacified at roof door, air duct roof door Equipped with roll-over protective structure, the other end of roll-over protective structure is mounted on the roll-over protective structure axis on cabinet, and roof door, air duct roof door are mounted on handle, Pressure hand is mounted in the pressure hand fixing seat of cabinet, and pressing plate is placed on adjacent two, and pressure hand pushes down pressing plate.

Compared with the prior art the utility model has following distinguishing feature and good effect: the utility model uses air-flow Filter mechanism carries out primary filtration to dust-contained airflow, and air-flow passes through the high-speed rotating centrifugal action of deduster, will be folded in air-flow The particle dust of band is separated, and the only thin dirt in part is folded in air-flow after centrifugal deduster by centrifugal deduster The rubbish of band with do not filter before compare, very little, this fraction, which enters, that dirt is intracavitary, to air duct switching mechanism into Row shunting processing, significantly reduces the pressure of subsequent processing；

Dry, the wet gas current that have dirt intracavitary are passed through different channels respectively and flowed by air duct switching mechanism, and dry gas stream is conveyed To filter chamber；Wet gas current is fed directly to connection chamber；Avoid wet gas current and enter filter chamber, cause filter element moisturize and The problem of can not work normally its dust pelletizing system, air duct switching mechanism occupies little space, mechanism controls are simple, sealing performance Well, failure rate is low, production cost is low, is effectively protected filtering material；

Cartridge filter and the cartridge filter of fixed pulse mechanism select pleated filter cylinder, this filter, compared with fiber bag precipitator or plate For formula deduster, high dust collection efficiency, the structure of surface filtration are simple, volume is relatively small, dismounting is more convenient, upkeep cost It is low.And pass through the twice filtering before deduster, the quantity of refuse intracavitary into deduster is greatly reduced, it is stifled to reduce deduster The probability of plug guarantees that deduster effectively works；Using hanger erection filter cylinder, since sunpender is that a round steel is made, compared with Hook hoisting mechanism it is relatively simple, air motion is without hindrance, convenient disassembly；Gas-storing pipe links together with pulse valve, when When pulse valve is powered, compressed air is sprayed by ejiction opening, is completed pulsatile once deashing, is equipped between filter cylinder and pulse valve Venturi tube 4, when the air-flow that pulse valve ejects, when by Venturi tube, air-flow from the coarse to fine, accelerates its flow velocity, gas is made to exist The rear side of the outlet of Venturi tube forms a vacuum area, causes the air of surrounding to be inhaled into Venturi tube, with compressed air one The flow velocity for flowing into diffusion chamber and increasing gas is acted, achievees the purpose that thorough deashing, in addition, when air-flow passes through Venturi tube, in centre Enter cartridge body part under the guide functions of segmental arc and small end, increases the service life of filter cylinder；

Preceding wicket, air duct roof door, rear wicket in filtering roof door fixed mechanism pass through pin shaft and connect with cabinet, using branch Strut support, when reaching support rod certain length with the unlatching of door, each door just cannot fall automatically or turn over after automatic, be in phase To fixation.When each door is closed, corresponding support rod can be folded with the movement of door, when Dang Gemen is completely closed, by pressing Hand pushes down door pressing plate, so that each door can be crossed sealing strip and box sealing, with fixing, reliable, structure is simple, convenient disassembly The features such as.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of the utility model.

Fig. 2 is a kind of structural schematic diagram of the utility model airflow filtering mechanism.

Fig. 3 is a kind of structural schematic diagram of the utility model air duct switching mechanism.

Fig. 4 is another structural schematic diagram of the utility model air duct switching mechanism.

Fig. 5 is a kind of structural schematic diagram of the utility model cartridge filter and fixed pulse mechanism.

Fig. 6 is the cross-sectional view of Fig. 5.

Fig. 7 is a kind of structural schematic diagram that the utility model filters roof door fixed mechanism.

Fig. 8 is the partial top view of Fig. 7.

In figure: 1, cabinet, 2, have a dirt chamber, 3, dustless chamber, 4, filter chamber, 5, connection chamber, 6, airflow filtering mechanism, 7, air duct Switching mechanism, 8, cartridge filter and fixed pulse mechanism, 9, filtering roof door fixed mechanism, 10, dustbin, 61, filter screen, 62, into Air port, 63, deduster, 71, dry-air blast road junction, 72, sealing strip, 73, dry-air blast road junction sealing clamp, 74, upper connecting rod, 75, power cylinder, 76, lower link, 77, guide rail, 78, wet wind road junction, 79, the shared sealing clamp of twoport, 710, conversion wind passage mouth, 711, pin shaft, 81, Fixture nut, 82, sunpender, 83, upper fixes sleeve, 84, Venturi tube, 85, filter chamber top plate, 86, sealing plate, 87, gas-storing pipe, 88, pulse valve, 89, lower fixing sleeve, 810, filter cylinder, 91, pressure hand, 92, handle, 93, roof door, 94, pressing plate, 95, air duct roof door, 96, pin shaft, 97, roll-over protective structure, 98, roll-over protective structure axis, 99, sealing strip.

Specific embodiment

A kind of sweeper dust removal by filtration device is referring to Fig.1 that dirt chamber 2, dustless chamber 3, filtering have been divided into cabinet 1 Chamber 4, connection chamber 5, the air outlet of airflow filtering mechanism 6 are communicated with dirt chamber 2, and the setting of air duct switching mechanism 7 is in connection chamber 5, mistake Filter cylinder and fixed pulse mechanism 8 are mounted in filter chamber 4, and filtering roof door fixed mechanism 9 is equipped at the top of cabinet 1；

The airflow filtering mechanism 6 and the dustbin 10 of sweeper connect, and include what the conveying of dustbin 10 came Dust and gas stream carries out primary filtration dedusting, and filtered air-flow has been transported to dirt chamber 2；

The air channel conversion device 7 is that control has dry, wet gas current in dirt chamber 2 to pass through different channel flowings respectively, Dry gas stream is transported to filter chamber 4, or wet gas current is fed directly to connection chamber 5；

The cartridge filter and fixed pulse mechanism 8 is that the dry gas stream for carrying out the conveying of air duct switching mechanism 7 carried out Enter dustless chamber 3 after filter, is discharged subsequently into connection chamber 5, fixed pulse mechanism is for giving cartridge filter deashing；

The filtering roof door fixed mechanism 9 is to be fixed on the filtering roof door at 1 top of cabinet and close the switch sealing to fill It sets, for repairing replacement cartridge filter and fixed pulse mechanism 8.

Referring to Fig. 2, the airflow filtering mechanism 6 includes filter screen 61, air inlet 62, deduster 63, deduster 63 Filter screen 61 is installed, the air outlet of deduster 63 has connected dirt chamber 2, and the deduster 63 is horizontal type at air inlet 62 Centrifugal deduster or centrifugal vertical type dust-cleaning equipment, the dust-contained airflow that the conveying of dustbin 10 comes pass through air inlet 62 after the filtering of filter screen 61 Into 63 dedusting of deduster.

Referring to Fig. 3, the air duct switching mechanism 7 is that have dirt chamber 2 to connect respectively by conversion wind passage mouth 710 with chamber 5 is connected to Lead to, be connected to by dry-air blast road junction 71 with filter chamber 4, filter chamber 4 is connected to by the air outlet of filter cylinder with dustless chamber 3, and dustless chamber 3 is logical Wind passage mouth 78 overly moist is connected to chamber 5 is connected to, and axis connection has the dry-air blast for sealing dry-air blast road junction 71 at the dry-air blast road junction 71 Road junction sealing clamp 73, wet wind road junction 78, conversion wind passage mouth 710 at be connected with twoport share sealing clamp 79, move back and forth dress It sets connection dry-air blast road junction sealing clamp 73 and twoport shares sealing clamp 710, the reciprocator drives dry-air blast road junction Sealing clamp 73 and twoport share the movement of sealing clamp 79, realize that dry-air blast road junction sealing clamp 73 seals dry-air blast road junction 71, twoport The sealing conversion of sealing clamp 79 wind passage mouth 710, unlatching wet wind road junction 78 or twoport is shared to share sealing clamp 79 and seal wet wind Conversion wind passage mouth 710 and dry-air blast road junction 71 are opened in road junction 78.

Referring to Fig. 4, the reciprocator is that one end of power cylinder 75 is fixed by bolt or pin shaft, and the other end is logical It crosses pin shaft 711 and public one end axis of upper connecting rod 74, lower link 76 connects, the other end and twoport of upper connecting rod 74 share sealing clamp 79 is hinged, and the other end and dry-air blast road junction sealing clamp 73 of lower link 79 are hinged, such power cylinder 75, lower link 79 and dry-air blast road Sealing clamp 73 constitutes sliding-block linkage；Power cylinder 75, upper connecting rod 74 and twoport share sealing clamp 79 and constitute another sliding block Link mechanism；Power cylinder 77 can use hydraulic cylinder, cylinder.

In order to guarantee that pin shaft 711 is moved along defined track, the pin shaft 711 is mounted on guiding device, with reality Cash sale axis 711 is moved along defined track, this implementation guiding device is on the guide rail 77 with gib block hole, when power cylinder 75 pushes away When dynamic or pulling pin shaft 711, it will be moved forwards or backwards along the gib block hole of guide rail 77；The guiding device It can also be gear rack arrangement either sliding rail.

In order to guarantee sealing when closing wind passage mouth, punished in dry-air blast road junction 71, wet wind road junction 78, conversion wind passage mouth 710 Sealing strip 72 is not installed.

Sealing strip 72 can be blown rubber, PVC adhesive tape, silica gel strip, foamed silica gel item, natural rubber, thermoplasticity ternary Village's material that EP rubbers, thinization ethylene propylene diene rubber etc. can be used for sealing, section can be round, rectangular, pancake, semicircle Shape can be solid core product, hollow product and metal-rubber composite article；Dry-air blast road junction 71, wet wind road junction 78, conversion air duct Mouth 710 can tilt, or straight.

When power cylinder 75 extends, pin shaft 711 moves on guide rail 77, pushes the fortune synchronous with lower link 76 of upper connecting rod 74 Dynamic, the uplink under the promotion of lower link 76 of dry-air blast road sealing clamp 71 is opened dry-air blast road junction 71, while will convert wind passage mouth 710 close, and compress sealing strip 72, and seal with it.Twoport shares sealing clamp 79 and declines under the promotion of upper connecting rod 74, will be wet Wind passage mouth 78 is opened, and air-flow, by dry-air blast road junction 71 to filter chamber 4, then passes through filtering material in filter chamber 4 from there is dirt chamber 2 Filtering, to dustless chamber 3, the air-flow in dustless chamber 3 passes through wet wind road junction 78 to being connected to chamber 5 again, this for dry gas stream the side of flowing through To.

When power cylinder 75 is withdrawn, pin shaft 711 moves on guide rail 77, pulls the fortune synchronous with lower link 76 of upper connecting rod 74 Dynamic, dry-air blast road sealing clamp 71 closes dry-air blast road junction 71 under the pulling of lower link 76, compresses sealing strip 72 and is sealed, Conversion wind passage mouth 710 is opened simultaneously；Twoport shares sealing clamp 79 under the pulling of upper connecting rod 74, rises to wet wind road junction 78 Place compresses sealing strip 72 and is sealed against, and for air-flow from there is dirt chamber 2 by conversion wind passage mouth 710 to connection chamber 5, this is wet type air-flow Flow through direction.

Referring to Fig. 5, Fig. 6, the cartridge filter and fixed pulse mechanism 8 include fixture nut 81, sunpender 82, upper fixing sleeve Cylinder 83, Venturi tube 84, filter chamber top plate 85, sealing plate 86, gas-storing pipe 87, pulse valve 88, lower fixing sleeve 89, filter cylinder 810 are Upper fixes sleeve 83 is tightly connected by sealing plate 86 and filter chamber top plate 85, and sunpender 82 passes through filter cylinder 810, the top of sunpender 82 End is inserted into the sleeve of upper fixes sleeve 83, and tail end passes through the bottom plate of filter cylinder 810 and, the tail of sunpender 82 fixed with fixture nut 81 End is inserted into lower fixing sleeve 89, and gas-storing pipe 87 is connect with pulse valve 88, and the blowing mouth of pulse valve 88 is mounted on 810 center line of filter cylinder Top, between pulse valve 88 and filter cylinder 810 be equipped with Venturi tube 84, Venturi tube 84 is fixed in fixes sleeve 83, Wen Pipe 84 has certain difference in height with 88 mouthfuls of pulse valve, and for difference in height between 2-100mm, lower fixing sleeve 89 can use bracing ring generation It replaces.

Referring to Fig. 7, Fig. 8, the filtering roof door fixed mechanism 9 comprising be arranged on cabinet 1 pressure hand 91, handle 92, Roof door 93, pressing plate 94, air duct roof door 95, pin shaft 96, roll-over protective structure 97, roll-over protective structure axis 98, sealing strip 99, roof door 93, air duct roof door 95 are mounted on cabinet 1 by pin shaft 96, sealing strip 99 can be equipped at roof door 93, air duct roof door 95 with free switch, are protected Demonstrate,prove the leakproofness of each door when closed, and be mounted on roll-over protective structure 97 at roof door 93, air duct roof door 95, roll-over protective structure 97 it is another It holds on the roll-over protective structure axis 98 being mounted on cabinet 1, roll-over protective structure 97 is freely rotated.When each door is opened, roll-over protective structure 97 is right It is supported, and ensure that the safety of door.And each door is mounted on handle 92, convenient and switch；Pressure hand 91 is mounted on cabinet 1 Pressure hand fixing seat on, pressing plate 94 is placed on adjacent two, pressure hand 91 push down pressing plate 94, when roof door 93, air duct roof door 95 It when closing, adjacent two first is pushed down with pressing plate 94, then pushes down pressing plate 94 with pressure hand 91, realize roof door 93, air duct roof door 95 Sealing；When roof door 93, air duct roof door 95 are closed, is compressed by pressure hand 91, pressing plate 94, not only realize the pressure to sealing strip 99 Tightly, it is more able to achieve and quickly unclamps or compress.

Claims (9)

1. a kind of sweeper dust removal by filtration device, it is characterized in that being divided into dirt chamber, dustless chamber, filter chamber, connection in cabinet Chamber, air duct switching mechanism, airflow filtering mechanism, cartridge filter and fixed pulse mechanism and filtering roof door fixed mechanism, in which:

The airflow filtering mechanism is that dust-contained airflow is carried out primary filtration dedusting, and filtered air-flow has been transported to dirt chamber；

The air channel conversion device is that dry, the wet gas current that will have dirt intracavitary pass through different channel flowings respectively, by dry gas stream It is transported to filter chamber, or wet gas current is fed directly to connection chamber；

The cartridge filter and fixed pulse mechanism are arranged in filter chamber, the dry gas stream for carrying out air duct switching mechanism conveying Dustless chamber is sent into after being filtered, subsequently into connection chamber discharge, fixed pulse mechanism is used for cartridge filter and fixed pulse machine Cartridge filter deashing in structure；

The filtering roof door fixed mechanism is the filtering roof door being fixed on cabinet, for maintenance replacement cartridge filter and admittedly Determine pulse mechanism.

2. a kind of sweeper dust removal by filtration device according to claim 1, it is characterized in that the airflow filtering mechanism packet Filter screen, air inlet, deduster are included, the air inlet of deduster is equipped with filter screen, and the air outlet of deduster has connected Dirt chamber, the deduster are horizontal type centrifugal deduster or centrifugal vertical type dust-cleaning equipment.

3. a kind of sweeper dust removal by filtration device according to claim 1, it is characterized in that the air channel conversion device is There is dirt chamber to pass through wet wind road junction respectively to be connected to, with chamber is connected to by the company of conversion wind passage mouth and the dusty gas air inlet of filter chamber Logical, the clean gas air outlet of filter chamber is connected to dustless chamber, and dustless chamber is connected to by dry-air blast road junction with chamber is connected to, and described is dry Dry-air blast road junction sealing clamp is installed at wind passage mouth, twoport is installed at wet wind road junction, conversion wind passage mouth and shares sealing clamp, it is past It is mobile that multiple telecontrol equipment connection dry-air blast road junction sealing clamp and twoport share sealing clamp；

The reciprocator drives dry-air blast road junction sealing clamp and twoport to share sealing clamp movement, realizes dry-air blast road junction Sealing clamp seals dry-air blast road junction, twoport shares sealing clamp sealing conversion wind passage mouth, open wet wind road junction or twoport shares Sealing clamp seals wet wind road junction, opens conversion wind passage mouth and dry-air blast road junction.

4. a kind of sweeper dust removal by filtration device according to claim 3, it is characterized in that the reciprocator is One end of power cylinder is fixed by bolt or pin shaft, and the other end is connect by one end axis of pin shaft and upper connecting rod, lower link, upper connecting rod The other end and dry-air blast road junction sealing clamp it is hinged, it is hinged that the other end of lower link and twoport share sealing clamp.

5. a kind of sweeper dust removal by filtration device according to claim 4, it is characterized in that the pin shaft is mounted on guiding On device, to realize that pin shaft is moved along defined track.

6. a kind of sweeper dust removal by filtration device according to claim 3, it is characterized in that dry-air blast road junction, wet wind road junction, Sealing strip is separately installed at conversion wind passage mouth.

7. a kind of sweeper dust removal by filtration device according to claim 1, it is characterized in that the cartridge filter and fixed arteries and veins Punch mechanism include fixture nut, sunpender, upper fixes sleeve, Venturi tube, filter chamber top plate, sealing plate, gas-storing pipe, pulse valve, Lower fixing sleeve, filter cylinder, upper fixes sleeve sealing plate are connect with filter chamber top plate seal, and sunpender passes through filter cylinder, the top of sunpender End is inserted into the sleeve of upper fixes sleeve, and tail end passes through the bottom plate of filter cylinder and fixed with fixture nut, under the tail end insertion of sunpender In fixing sleeve, gas-storing pipe is connect with pulse valve, and the blowing mouth of pulse valve is mounted on the top of filter cylinder center line, in pulse valve and filter Venturi tube is equipped between cylinder, Venturi tube is fixed in fixes sleeve.

8. a kind of sweeper dust removal by filtration device according to claim 7, it is characterized in that Venturi tube and pulse valve port have one Fixed difference in height, difference in height is between 2-100mm.

9. a kind of sweeper dust removal by filtration device according to claim 1, it is characterized in that the fixed machine of the filtering roof door Structure includes pressure hand, handle, roof door, pressing plate, air duct roof door, pin shaft, roll-over protective structure, the roll-over protective structure axis, sealing strip being arranged on cabinet, The roof door, air duct roof door are mounted on cabinet by pin shaft, and sealing strip, roof door, air duct are equipped at roof door, air duct roof door Roll-over protective structure is mounted at roof door, the other end of roll-over protective structure is mounted on the roll-over protective structure axis on cabinet, and roof door, air duct roof door are pacified Equipped with handle, hand is pressed to be mounted in the pressure hand fixing seat of cabinet, pressing plate is placed on adjacent two, and pressure hand pushes down pressing plate.