CN111000489A - Multiple filtration has dust cup structure of automatic control dust refluence - Google Patents
Multiple filtration has dust cup structure of automatic control dust refluence Download PDFInfo
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- CN111000489A CN111000489A CN201911393856.9A CN201911393856A CN111000489A CN 111000489 A CN111000489 A CN 111000489A CN 201911393856 A CN201911393856 A CN 201911393856A CN 111000489 A CN111000489 A CN 111000489A
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- filter element
- dust
- dust cup
- filter
- control valve
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L9/00—Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
- A47L9/10—Filters; Dust separators; Dust removal; Automatic exchange of filters
- A47L9/16—Arrangement or disposition of cyclones or other devices with centrifugal action
- A47L9/1683—Dust collecting chambers; Dust collecting receptacles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a dust cup structure with multiple filtering functions and capable of automatically controlling dust backflow. It includes dirt cup subassembly, air inlet subassembly, filter screen subassembly and filter element subassembly, dirt cup subassembly on be equipped with dirt cup air intake and dirt cup air outlet, the air inlet subassembly include air-supply line, control valve block, control valve frame and control valve seat, the control valve seat arrange in the air-supply line and with dirt cup air intake phase-match, control valve frame fixed mounting on control valve seat, the control valve block install on control valve frame, control valve block and control valve frame rotate to be connected, filter screen unit mount in the inside of dirt cup subassembly, filter element subassembly install the inside at filter screen subassembly. The invention has the beneficial effects that: the dust collection device has the advantages that the dust backflow is automatically controlled, the dust is subjected to multiple times of filtration according to the thickness and the particle size, the dust collection efficiency is high, the dust collection effect is good, the dust collection capacity is large, the sealing effect is good, and the safety and reliability are high.
Description
Technical Field
The invention relates to the technical field of dust collectors, in particular to a dust cup structure with multiple filtering functions and capable of automatically controlling dust backflow.
Background
The working principle of the dust collector is that a motor of the dust collector rotates at a high speed, air is sucked from a suction inlet, a dust box generates certain vacuum, dust enters a dust filtering bag in the dust box through a floor brush, a connecting pipe, a handle, a hose and a main suction pipe, the dust is left in the dust filtering bag, the filtered air enters the motor through a layer of filter plate, the layer of filter plate is a protective barrier for preventing the dust bag from breaking and sucking the dust into the motor, the air entering the motor flows out through the motor, and the carbon brush is continuously abraded during the operation of the motor, so that the air flows out of the dust collector and is filtered.
The dust cup filters the garbage and the gas through the vacuum airflow separation of the high-speed rotation of the motor, and then the air is purified through the filtration materials such as HEPA and the like so as to avoid secondary pollution. The advantage is that the dust bag does not need to be replaced frequently; the disadvantage is that cleaning is needed after dust collection. The dust cup filtration is the main filtration mode of the dust collector, most of the dust collectors are the dust cup filtration, the dust cup filtration is also the upgrading of the dust bag filtration, and the dust cup filtration device has the advantages of no material consumption and capability of avoiding secondary investment.
When the existing dust cup is not used in a dust collector, dust in the dust cup can flow back due to the fact that a user carries the dust collector, and secondary pollution is caused; in addition, a common household dust collector usually performs dust collection and filtration simply, but cannot perform cleaner dust filtration, because the finer the filter material is, the cleaner the dust collector can filter air, but the poorer the air permeability is, the more the air quantity sucked by the motor is influenced, and the efficiency of the dust collector is reduced.
Disclosure of Invention
The invention provides a dust cup structure which can prevent backflow, has high dust collection efficiency, multiple filtration and can automatically control dust backflow, and aims to overcome the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a multiple filtration just has dirt cup structure of automatic control dust refluence, includes dirt cup subassembly, air inlet subassembly, filter screen subassembly and filter element group spare, dirt cup subassembly on be equipped with dirt cup air intake and dirt cup air outlet, the air inlet subassembly include air-supply line, control valve block, control valve frame and control valve seat, the control valve seat arrange in the air-supply line and with dirt cup air intake phase-match, control valve frame fixed mounting on control valve seat, the control valve block install on control valve frame, control valve block and control valve frame rotate and be connected, filter screen unit mount in the inside of dirt cup subassembly, filter element group spare install the inside at filter screen subassembly.
When the dust collector is used, negative pressure is formed inside the dust cup assembly under the influence of the air suction motor, when airflow enters the dust cup assembly from the air inlet pipe, the control valve plate can be automatically opened towards the inner side of the dust cup assembly, and the airflow smoothly enters the dust cup assembly through the air inlet pipe; when the dust collector stops working, the control valve plate can automatically recover and close under the action of self gravity because the interior of the dust cup component has no negative pressure, and dust in the dust cup component is sealed in the interior and cannot overflow outwards, so that the control function of automatically controlling the backflow of the dust is realized; when dust enters the dust collection assembly, the dust rotates anticlockwise in the dust cup assembly, so that the dust is filtered for the first time in the dust cup assembly under the action of centrifugal force, then the dust is filtered for the second time by the filter screen assembly, and finally the dust is filtered for the third time by the filter core assembly to discharge clean air from an air outlet of the dust cup; the design filters the dust according to the coarse and fine particle sizes in multiple times, so that the dust collection efficiency is not influenced by the excessively fine filter material; meanwhile, the dust collection effect cannot be influenced because the filter material is too thick.
Preferably, the dust cup assembly comprises a dust cup body and a dust cup bottom cover, the dust cup body is integrally formed and is divided into an upper dust cup and a lower dust cup, the upper dust cup and the lower dust cup are cylindrical, the diameter of the upper dust cup is smaller than that of the lower dust cup, the upper dust cup and the lower dust cup are in transitional connection through a circular truncated cone, the dust cup air inlet is formed in the side surface of the upper dust cup, the dust cup air outlet is formed in the upper end surface of the upper dust cup, a locking groove is formed in the side surface of the lower dust cup and below the dust cup air inlet, a cup bottom lock catch is arranged in the locking groove, the dust cup bottom cover is rotatably connected with the dust cup body, and a bottom cover lock catch matched with the bottom lock catch is arranged at the edge of the dust cup bottom cover. The structural design that big end down about the dirt cup body has guaranteed the normal filtration of dirt cup on the one hand, and another part makes the collection dirt capacity increase of dirt cup down, makes the clean air after the filtration smoothly discharge through dirt cup air outlet simultaneously.
Preferably, the upper portion in hasp groove is equipped with the spring hole site, the lower part in hasp groove is equipped with and buckles matched with bottom spring bolt with the bottom, bottom of cup hasp rotate with the hasp groove and be connected, the upper portion of bottom of cup hasp is equipped with presses down the position, press down and be equipped with compression spring between the position and the spring hole site, the lower part of bottom of cup hasp be equipped with bottom hasp assorted scarf, bottom hasp including detaining hole and profile, bottom hasp install on the bottom spring bolt through detaining the hole, the profile on bottom of bottom hasp contacts with the scarf on the bottom of cup hasp, the centre of dust cup bottom is equipped with the through-hole with filter element group spare assorted, the edge of through-hole is equipped with the bulge loop with filter screen group spare assorted, the outward flange of dust cup bottom is equipped with the bottom sealing washer, the cross sectional shape of bottom of cup sealing washer is the U-shaped. The cooperation of the lock catch groove, the cup bottom lock catch and the bottom cover lock catch can facilitate the disassembly and the assembly of the dust cup bottom cover; and the structural design of the cup bottom sealing ring greatly improves the sealing effect between the dust cup bottom cover and the dust cup body.
Preferably, the cross section of the dust cup air inlet is D-shaped, the plane where the straight line on the dust cup air inlet is located is inclined towards the direction of the curved surface where the arc line is located, and the curved surface where the arc line on the dust cup air inlet is located is tangent to the inner wall of the upper dust cup. Through the structural design of dirt cup air intake, the plane can be injectd the control valve block and guide the dust anticlockwise rotation in the dirt cup subassembly, and the curved surface can make the dust receive the effect of centrifugal force attached on the inner wall of dirt cup subassembly.
Preferably, a conductive frame is arranged on the side surface of the dust cup and at a position corresponding to the dust cup air inlet, a conductive sheet is arranged on the conductive frame, a wire pressing groove is arranged on the upper end surface of the dust cup and outside the dust cup air outlet, one end of the wire pressing groove is communicated with the position of the conductive frame, the other end of the wire pressing groove is communicated with the position of the dust cup air inlet, and a wire pressing strip is arranged in the wire pressing groove. Through the design of above-mentioned structure for the electric wire is protected alone, thereby has improved the fail safe nature of whole structure.
Preferably, the control valve seat is cylindrical, an installation block is arranged on the inner wall of the control valve seat, the control valve frame is installed on the installation block, the control valve plate is consistent with the dust cup air inlet in shape, a limiting buckle is arranged on the air inlet pipe, and the control valve seat is installed in the air inlet pipe and is arranged between the limiting buckle and the dust cup air inlet. Through the design of spacing buckle, can effectual injecive the position of control valve seat, conveniently fix a position the installation to control valve seat.
Preferably, the lower end of the air inlet pipe is provided with a conductive mounting seat, a conductive needle seat is arranged in the conductive mounting seat, and the conductive needle seat is electrically connected with the lead frame through a wire pressing groove. Through the design of the conductive needle seat, the structure can prevent static electricity and improve the safety and reliability.
As preferred, the filter screen subassembly include metal filter screen and filter piece, the metal filter screen include metal support and filter screen, the filter screen install on metal support, the filter piece be integrated into one piece, the filter piece include hollow filtration round platform and hollow filtration cylinder, the up end diameter of filtering the round platform is greater than the lower terminal surface diameter of filtering the round platform, the up end diameter of filtering the round platform is unanimous with the internal diameter of last dirt cup, the upper end of filtering the round platform is connected with the lower extreme of last dirt cup, the side of filtering the round platform is equipped with the dust removal mouth, the filtration cylinder install in the lower terminal surface center department of filtering the round platform and with filter the round platform intercommunication, the lower extreme of filtering the cylinder cooperatees with the bulge loop of dirt cup bottom, be equipped with on the lower extreme lateral surface of filtering the cylinder and filter the sealing washer, the filtration cylinder through filtering the sealing washer and dirt cup bottom sealing connection, the metal support is arranged in the filtering circular truncated cone and is arranged at the upper end of the filtering cylinder. The dust cup body is divided into an upper part and a lower part through the structural design of the filter piece, the airflow of the upper part rotates anticlockwise in the dust cup body for filtering, and the lower part is used for depositing dust; can make things convenient for the installation of filtering the piece through the design of bulge loop, make to filter sealing washer's design and filter sealing connection between piece and the dirt cup bottom.
Preferably, the filter element assembly comprises a filter element frame, a super filter element and a filter element mounting piece, the filter element frame is mounted inside the super filter element, the bottom of the filter element frame is sealed, an opening is formed in the top of the filter element frame, the super filter element is mounted inside the metal filter screen and the filter cylinder, an upper filter element sealing ring is arranged at the upper end of the super filter element, the super filter element is connected with an air outlet of the dust cup through the upper filter element sealing ring, a lower filter element sealing ring is arranged at the lower end of the super filter element, the filter element mounting piece comprises a filter element fixing piece and a filter element fixing column, a mounting hole is formed in the middle of the filter element fixing piece, the filter element fixing piece is in a ring shape, an upper flanging and a lower flanging are arranged on the outer side of the filter element fixing piece, the filter element fixing piece is mounted in a through hole of the dust cup bottom, the filter core mounting on and arrange the outside of mounting hole in and be equipped with the annular, super filter core pass through filter core lower seal circle and install in the annular of filter core mounting, the filter core fixed column install in the mounting hole of filter core mounting. Because the super filter element is formed by compounding different fibers, negative pressure is arranged in the dust cup body, adhesion is easy to cause, and filtration is directly influenced, so that the filter element frame is designed to play a supporting role, enough space in the super filter element is kept, and permanent filtration can be realized; the structural design of the filter element fixing piece is convenient to mount and dismount, the sealing connection between the filter element fixing piece and the bottom cover of the dust cup is ensured, and the dust is prevented from overflowing.
As preferred, super filter core include that filter core layer, filter core fit with a contraceptive ring and filter core lower ring, the filter core layer install and fit with a contraceptive ring and filter core between the lower ring at the filter core, the filter core layer include filter core inlayer and filter core skin, the filter core layer by filter core inlayer and the outer compound processing shaping of filter core, the filter core inlayer form by ES fibre and PP fibre complex, the outer preparation of forming by polyester fiber of filter core. Through above-mentioned structural design, can further improve super filter core's filter effect.
Preferably, the filtration density of the inner layer of the filter element is 140g/m2The filtration density of the outer layer of the filter element is 60g/m2The filter screen adopts 40-60 molybdenum with thick and thin pore diameters, and the filter element is fixedThe fixed piece, the filter element upper sealing ring, the filter element lower sealing ring, the filter sealing ring and the cup bottom sealing ring are all made of soft TPE materials. Through the design of above-mentioned structure, the effectual sealed effect that improves whole structure to prevent that the dust is excessive.
Preferably, the control valve plate is provided with a rotating shaft, the control valve frame is provided with a bearing seat, the control valve plate is installed on the control valve frame through the matching of the rotating shaft and the bearing seat, the control valve frame is fixedly connected with an installation block on the control valve seat through screws, the rotating shaft of the control valve plate is provided with a return torsion spring, one end of the return torsion spring is arranged on the installation block of the control valve seat, and the other end of the return torsion spring is arranged on the control valve plate. Through the design of the return torsion spring, the air inlet pipe is closed by the acting force of the return torsion spring no matter what position relation the dust collector is in when the dust collector is used, so that the dust is prevented from flowing backwards.
The invention has the beneficial effects that: the purpose of automatically controlling the dust backflow is achieved, the dust is filtered in multiple times according to the coarse and fine particle sizes, and the dust collection efficiency cannot be influenced due to the fact that the filtering material is too fine; meanwhile, the dust collection effect cannot be influenced by too thick filtering materials, the dust collection capacity is large, the sealing effect is good, and the safety and reliability are high.
Drawings
FIG. 1 is a schematic illustration of an explosive structure according to the present invention;
FIG. 2 is a schematic structural view of a dirt cup assembly;
FIG. 3 is a schematic structural view of the intake assembly;
FIG. 4 is a schematic view of a screen assembly;
fig. 5 is a schematic view of a cartridge holder.
In the figure: 1. the dust cup comprises a dust cup body, 2 parts of a conductive frame, 3 parts of a metal filter screen, 4 parts of a filter piece, 5 parts of a filter sealing ring, 6 parts of a cup bottom sealing ring, 7 parts of a dust cup bottom cover, 8 parts of a filter element fixing column, 9 parts of a filter element fixing piece, 10 parts of a filter element lower sealing ring, 11 parts of a filter element lower ring, 12 parts of a filter element layer, 13 parts of a filter element frame, 14 parts of a filter element upper ring, 15 parts of a filter element upper sealing ring, 16 parts of a cup bottom lock catch, 17 parts of a conductive needle seat, 18 parts of an air inlet pipe, 19 parts of a control valve frame, 20 parts of a control valve plate, 21 parts of a control valve seat, 22 parts of a pressure line, 23 parts of a dust cup air outlet, 24 parts of an upper dust cup, 25 parts of a conductive sheet, 26 parts of a lower dust cup, 27 parts of a spring hole, 34. the dust cup comprises a dust cup air inlet, 35 parts of a wire pressing groove, 36 parts of a mounting block, 37 parts of a limiting buckle, 38 parts of a conductive mounting seat, 39 parts of a filter screen, 40 parts of a metal support, 41 parts of a dust removing opening, 42 parts of a filter circular table, 43 parts of a filter cylinder, 44 parts of a mounting hole, 45 parts of a ring groove, 46 parts of an upper flanging and 47 parts of a lower flanging.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
In the embodiment shown in fig. 1 and 3, the dust cup structure with multiple filtering functions and automatic dust backflow control function comprises a dust cup assembly, an air inlet assembly, a filter screen assembly and a filter core assembly, wherein the dust cup assembly is provided with a dust cup air inlet 34 and a dust cup air outlet 23, the air inlet assembly comprises an air inlet pipe 18, a control valve plate 20, a control valve frame 19 and a control valve seat 21, the control valve seat 21 is arranged in the air inlet pipe 18 and matched with the dust cup air inlet 34, the control valve frame 19 is fixedly installed on the control valve seat 21, the control valve plate 20 is installed on the control valve frame 19, the control valve plate 20 is rotatably connected with the control valve frame 19, the filter screen assembly is installed inside the dust cup assembly, and the filter core assembly is installed inside the filter screen assembly.
As shown in fig. 2, the dust cup assembly includes a dust cup body 1 and a dust cup bottom cover 7, the dust cup body 1 is integrally formed, the dust cup body 1 is divided into an upper dust cup 24 and a lower dust cup 26, the upper dust cup 24 and the lower dust cup 26 are both cylindrical, the diameter of the upper dust cup 24 is smaller than that of the lower dust cup 26, the upper dust cup 24 and the lower dust cup 26 are connected in a transition manner through a circular truncated cone, a dust cup air inlet 34 is disposed on a side surface of the upper dust cup 24, a dust cup air outlet 23 is disposed on an upper end surface of the upper dust cup 24, a latch groove is disposed on a side surface of the lower dust cup 26 and below the dust cup air inlet 34, a cup bottom latch 16 is disposed in the latch groove, the dust cup bottom cover 7 is rotatably connected with the dust cup body 1, and a bottom latch 30 matched with the cup bottom latch 16 is disposed at an edge of the.
The upper portion of the lock catch groove is provided with a spring hole position 27, the lower portion of the lock catch groove is provided with a bottom cover lock tongue 28 matched with a bottom cover buckle 30, the cup bottom buckle 16 is rotatably connected with the lock catch groove, the upper portion of the cup bottom buckle 16 is provided with a pressing position 33, a compression spring is arranged between the pressing position 33 and the spring hole position 27, the lower portion of the cup bottom buckle 16 is provided with a diagonal plane 32 matched with the bottom cover buckle 30, the bottom cover buckle 30 comprises a buckle hole and a buckle strip, the bottom cover buckle 30 is installed on the bottom cover lock tongue 28 through the buckle hole, the buckle strip on the bottom cover buckle 30 is contacted with the diagonal plane 32 on the cup bottom buckle 16, the middle of the dust cup bottom cover 7 is provided with a through hole 29 matched with the filter element assembly, the edge of the through hole 29 is provided with a convex ring 31 matched with the filter element assembly, the outer.
The cross section of the dust cup air inlet 34 is D-shaped, the plane of the straight line on the dust cup air inlet 34 is inclined to the direction of the curved surface of the arc line, and the curved surface of the arc line on the dust cup air inlet 34 is tangent to the inner wall of the upper dust cup 24. The side surface of the upper dust cup 24 and the position corresponding to the dust cup air inlet 34 are provided with the conductive frame 2, the conductive frame 2 is provided with the conductive sheet 25, the upper end surface of the upper dust cup 24 and the outer side of the dust cup air outlet 23 are provided with the wire pressing groove 35, one end of the wire pressing groove 35 is communicated with the position of the conductive frame 2, the other end of the wire pressing groove 35 is communicated with the position of the dust cup air inlet 34, and the wire pressing groove 35 is internally provided with the wire pressing strip 22.
As shown in fig. 3, the control valve seat 21 is cylindrical, the inner wall of the control valve seat 21 is provided with an installation block 36, the control valve frame 19 is installed on the installation block 36, the control valve plate 20 is in accordance with the shape of the dust cup inlet 34, the air inlet pipe 18 is provided with a limit buckle 37, and the control valve seat 21 is installed in the air inlet pipe 18 and is disposed between the limit buckle 37 and the dust cup inlet 34. The lower end of the air inlet pipe 18 is provided with a conductive mounting seat 38, a conductive needle seat 17 is arranged in the conductive mounting seat 38, and the conductive needle seat 17 is electrically connected with the lead frame through the wire pressing groove 35. The control valve plate 20 is provided with a rotating shaft, the control valve frame 19 is provided with a bearing seat, the control valve plate 20 is installed on the control valve frame 19 through the matching of the rotating shaft and the bearing seat, the control valve frame 19 is fixedly connected with an installation block 36 on the control valve seat 21 through a screw, the rotating shaft of the control valve plate 20 is provided with a return torsion spring, one end of the return torsion spring is arranged on the installation block 36 of the control valve seat 21, and the other end of the return torsion spring is arranged on the control valve plate 20.
As shown in fig. 4, the filter screen assembly comprises a metal filter screen 3 and a filter member 4, the metal filter screen 3 comprises a metal support 40 and a filter screen 39, the filter screen 39 is mounted on the metal support 40, the filter member 4 is integrally formed, the filter member 4 comprises a hollow filter circular platform 42 and a hollow filter cylinder 43, the diameter of the upper end surface of the filter circular platform 42 is larger than that of the lower end surface of the filter circular platform 42, the diameter of the upper end surface of the filter circular platform 42 is consistent with the inner diameter of the upper dust cup 24, the upper end of the filter circular platform 42 is connected with the lower end of the upper dust cup 24, the side surface of the filter circular platform 42 is provided with a dust removal port 41, the filter cylinder 43 is mounted at the center of the lower end surface of the filter circular platform 42 and is communicated with the filter circular platform 42, the lower end of the filter cylinder 43 is matched with the convex ring 31 of the dust cup bottom cover 7, the outer side, the metal bracket 40 is disposed in the filter boss 42 and is mounted on the upper end of the filter cylinder 43.
As shown in fig. 1 and 5, the filter element assembly comprises a filter element frame 13, a super filter element and a filter element mounting member, the filter element frame 13 is mounted inside the super filter element, the bottom of the filter element frame 13 is sealed, the top of the filter element frame 13 is provided with an opening, the super filter element is mounted inside the metal filter screen 3 and the filter cylinder 43, the upper end of the super filter element is provided with a filter element upper sealing ring 15, the super filter element is connected with the dust cup air outlet 23 through the filter element upper sealing ring 15, the lower end of the super filter element is provided with a filter element lower sealing ring 10, the filter element mounting member comprises a filter element fixing member 9 and a filter element fixing column 8, the middle of the filter element fixing member 9 is provided with a mounting hole 44, the filter element fixing member 9 is in a ring shape, the outer side of the filter element fixing member 9 is provided with an upper flange 46 and a lower flange 47, an annular groove 45 is formed in the filter element fixing piece 9 and arranged on the outer side of the mounting hole 44, the super filter element is mounted in the annular groove 45 of the filter element fixing piece 9 through the filter element lower sealing ring 10, and the filter element fixing column 8 is mounted in the mounting hole 44 of the filter element fixing piece 9.
Super filter core includes filter element layer 12, filter element ring sum 14 and filter element ring sum 11 down, and filter element layer 12 is installed on the filter element ring sum 14 and is enclosed under the filter element between 11, and filter element layer 12 includes filter element inlayer and filter element skin, and filter element layer 12 is formed by filter element inlayer and the outer compound machine-shaping of filter element, and the filter element inlayer is formed by ES fibre and PP fibre complex, and the filter element skin is formed by the polyester fiber preparation. The filtering density of the inner layer of the filter element is 140g/m2, the filtering density of the outer layer of the filter element is 60g/m2, the filter screen 39 adopts 40-60 molybdenum with the diameter of the hole, and the filter element fixing piece 9, the filter element upper sealing ring 15, the filter element lower sealing ring 10, the filtering sealing ring 5 and the cup bottom sealing ring 6 are all made of soft TPE materials.
When the dust collector is used, negative pressure is formed inside the dust cup body 1 under the influence of an air suction motor, air flow acts on the control valve plate 20 when passing through the air inlet pipe 18, so that the control valve plate 20 can be automatically opened towards the inner side of the dust cup body 1, the air flow enters the dust cup body 1 through the dust cup air inlet 34, anticlockwise whirlwind is performed along the inner wall of the dust cup body 1 by taking the metal filter screen 3 as the center, the dust particles are different in thickness and weight, and the centrifugal force generated by circular motion of the dust particles is also different; the dust with large particles and heavy weight is deposited to the bottom of the filtering circular truncated cone 42 along the inner wall of the dust cup body 1 and then deposited to the bottom of the dust cup body 1 through the dust removal port 41; dust with small particles and light weight enters an annular wall cavity formed between the inner wall of the metal filter screen 3 and the outer wall of the super filter element through the metal filter screen 3, continues to do circular cyclone motion and is finally deposited at the bottom of the annular wall cavity, and the filtered clean air flow is discharged from a dust cup air outlet 23 on the dust cup body 1 after being filtered again through the super filter element, so that the whole filtering process is completed; when the dust collector stops working, because the inside of the dust cup body 1 has no negative pressure, the control valve plate 20 can automatically recover and close the dust cup air inlet 34 under the combined action of self gravity and the return torsion spring, and the dust in the dust cup body 1 is sealed in the inside and cannot overflow outwards, thereby realizing the control function of automatically controlling the dust to flow backwards.
Claims (12)
1. A dust cup structure with multiple filtration and automatic dust backflow control is characterized by comprising a dust cup component, an air inlet component, a filter screen component and a filter core component, the dust cup component is provided with a dust cup air inlet (34) and a dust cup air outlet (23), the air inlet component comprises an air inlet pipe (18), a control valve plate (20), a control valve frame (19) and a control valve seat (21), the control valve seat (21) is arranged in the air inlet pipe (18) and is matched with the dust cup air inlet (34), the control valve frame (19) is fixedly arranged on the control valve seat (21), the control valve plate (20) is arranged on the control valve frame (19), control valve block (20) rotate with control valve frame (19) and be connected, the inside at the dirt cup subassembly of filter screen subassembly installation, the inside at the filter screen subassembly of filter screen subassembly installation.
2. The dust cup structure with multiple filtration and automatic dust backflow control according to claim 1, wherein the dust cup assembly comprises a dust cup body (1) and a dust cup bottom cover (7), the dust cup body (1) is integrally formed, the dust cup body (1) is divided into an upper dust cup (24) and a lower dust cup (26), the upper dust cup (24) and the lower dust cup (26) are both cylindrical in shape, the diameter of the upper dust cup (24) is smaller than that of the lower dust cup (26), the upper dust cup (24) and the lower dust cup (26) are in transition connection through a circular truncated cone, the dust cup air inlet (34) is arranged on the side surface of the upper dust cup (24), the dust cup air outlet (23) is arranged on the upper end surface of the upper dust cup (24), the side surface of the lower dust cup (26) is arranged on the side surface and a latch groove is arranged below the dust cup air inlet (34), the dust cup is characterized in that a cup bottom lock catch (16) is arranged in the lock catch groove, the dust cup bottom cover (7) is rotatably connected with the dust cup body (1), and a bottom cover buckle (30) matched with the cup bottom lock catch (16) is arranged at the edge of the dust cup bottom cover (7).
3. The dust cup structure with multiple filtration and automatic dust backflow control functions as claimed in claim 2, wherein a spring hole (27) is formed in the upper portion of the lock catch groove, a bottom cover lock tongue (26) matched with the bottom cover buckle (30) is arranged at the lower portion of the lock catch groove, the cup bottom buckle (16) is rotatably connected with the lock catch groove, a pressing portion (33) is arranged at the upper portion of the cup bottom buckle (16), a compression spring is arranged between the pressing portion (33) and the spring hole (27), a diagonal plane (32) matched with the bottom cover buckle (30) is arranged at the lower portion of the cup bottom buckle (16), the bottom cover buckle (30) comprises a buckle hole and a buckle strip, the bottom cover buckle (30) is mounted on the bottom cover lock tongue (26) through the buckle hole, the buckle strip on the bottom cover buckle (30) is in contact with the diagonal plane (32) on the cup bottom buckle (16), the middle of dirt cup bottom (7) is equipped with through-hole (29) with filter element subassembly assorted, the edge of through-hole (29) is equipped with filter screen subassembly assorted bulge loop (31), the outward flange of dirt cup bottom (7) is equipped with cup bottom sealing washer (6), the cross sectional shape of cup bottom sealing washer (6) is the U-shaped.
4. The dust cup structure with multiple filtering functions and automatic dust backflow control function according to claim 2 or 3, wherein the cross section of the dust cup air inlet (34) is D-shaped, the plane of the straight line on the dust cup air inlet (34) is inclined towards the direction of the curved surface of the arc line, and the curved surface of the arc line on the dust cup air inlet (34) is tangent to the inner wall of the upper dust cup (24).
5. The dust cup structure capable of performing multiple filtration and automatically controlling dust backflow according to claim 2 or 3, wherein a conductive frame (2) is arranged on the side face of the dust cup (24) and at a position corresponding to the dust cup air inlet (34), a conductive sheet (25) is arranged on the conductive frame (2), a wire pressing groove (35) is arranged on the upper end face of the dust cup (24) and outside the dust cup air outlet (23), one end of the wire pressing groove (35) is communicated with the position of the conductive frame (2), the other end of the wire pressing groove (35) is communicated with the position of the dust cup air inlet (34), and a wire pressing strip (22) is arranged in the wire pressing groove (35).
6. The dust cup structure with multiple filtering functions and automatic dust backflow control function according to claim 4, wherein the control valve seat (21) is cylindrical in shape, an installation block (36) is arranged on the inner wall of the control valve seat (21), the control valve frame (19) is installed on the installation block (36), the control valve plate (20) is consistent with the dust cup air inlet (34) in shape, a limiting buckle (37) is arranged on the air inlet pipe (18), and the control valve seat (21) is installed in the air inlet pipe (18) and is arranged between the limiting buckle (37) and the dust cup air inlet (34).
7. The multiple filtration dust cup structure with automatic dust backflow control function according to claim 5, wherein the lower end of the air inlet pipe (18) is provided with an electrically conductive mounting seat (38), an electrically conductive needle seat (17) is arranged in the electrically conductive mounting seat (38), and the electrically conductive needle seat (17) is electrically connected with the lead frame through a wire pressing groove (35).
8. The dust cup structure with the multiple filtering function and the automatic dust backflow control function according to claim 3, wherein the filter screen assembly comprises a metal filter screen (3) and a filter element (4), the metal filter screen (3) comprises a metal support (40) and a filter screen (39), the filter screen (39) is mounted on the metal support (40), the filter element (4) is integrally formed, the filter element (4) comprises a hollow filter circular table (42) and a hollow filter cylinder (43), the diameter of the upper end face of the filter circular table (42) is larger than that of the lower end face of the filter circular table (42), the diameter of the upper end face of the filter circular table (42) is consistent with the inner diameter of the upper dust cup (24), the upper end of the filter circular table (42) is connected with the lower end of the upper dust cup (24), and a dust removal port (41) is formed in the side face of the filter circular table (42), filter cylinder (43) install the lower terminal surface center department of filtering round platform (42) and with filter round platform (42) intercommunication, the lower extreme of filtering cylinder (43) cooperatees with bulge loop (31) of dirt cup bottom (7), be equipped with on the lower extreme lateral surface of filtering cylinder (43) and filter sealing washer (5), filter cylinder (43) through filtering sealing washer (5) and dirt cup bottom (7) sealing connection, metal support (40) arrange in filtering round platform (42) and install the upper end at filtering cylinder (43).
9. The dust cup structure with multiple filtration and automatic dust backflow control functions as claimed in claim 8, wherein the filter element assembly comprises a filter element holder (13), a super filter element and a filter element mounting member, the filter element holder (13) is mounted inside the super filter element, the bottom of the filter element holder (13) is sealed, the top of the filter element holder (13) is provided with an opening, the super filter element is mounted inside the metal filter screen (3) and the filter cylinder (43), the upper end of the super filter element is provided with a filter element upper sealing ring (15), the super filter element is connected with the dust cup air outlet (23) through the filter element upper sealing ring (15), the lower end of the super filter element is provided with a filter element lower sealing ring (10), the filter element mounting member comprises a filter element fixing member (9) and a filter element fixing column (8), the middle of the filter element fixing member (9) is provided with a mounting hole (44), the shape of filter core mounting (9) is the ring shape, the outside of filter core mounting (9) is equipped with turn-ups (46) and turn-ups (47) down, filter core mounting (9) install in through-hole (29) of dirt bottom of cup (7), dirt bottom of cup (7) arrange in last turn-ups (46) and turn-ups (47) down of filter core mounting (9) between, filter core mounting (9) on and the outside of arranging mounting hole (44) in be equipped with annular (45), super filter core pass through filter core lower seal circle (10) and install in annular (45) of filter core mounting (9), filter core fixed column (8) install in mounting hole (44) of filter core mounting (9).
10. The utility model provides a multiple filtration just has dirt cup structure of automatic control dust refluence according to claim 9, characterized by, super filter core include filter element layer (12), filter element upper ring (14) and filter element lower ring (11), filter element layer (12) install on the filter element between filter element upper ring (14) and filter element lower ring (11), filter element layer (12) include filter element inlayer and filter element skin, filter element layer (12) by filter element inlayer and the outer compound machine-shaping of filter element, filter element inlayer form by ES fibre and PP fibre complex, the outer polyester fiber of making of filter element form.
11. The multiple filtration dirt cup structure with automatic dust backflow control of claim 10, wherein the inner layer of the filter element has a filtration density of 140g/m2The filtration density of the outer layer of the filter element is 60g/m2The filter screen (39) adopts the thickness aperture of 40-60 molybdenum, and the filter element fixing piece (9), the filter element upper sealing ring (15), the filter element lower sealing ring (10), the filter sealing ring (5) and the cup bottom sealing ring (6) are all made of soft TPE materials.
12. The dust cup structure with multiple filtering functions and automatic dust backflow control function according to claim 6, wherein a rotating shaft is arranged on the control valve plate (20), a bearing seat is arranged on the control valve frame (19), the control valve plate (20) is installed on the control valve frame (19) through the matching of the rotating shaft and the bearing seat, the control valve frame (19) is fixedly connected with an installation block (36) on the control valve seat (21) through a screw, a return torsion spring is arranged on the rotating shaft of the control valve plate (20), one end of the return torsion spring is arranged on the installation block (36) of the control valve seat (21), and the other end of the return torsion spring is arranged on the control valve plate (20).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911393856.9A CN111000489A (en) | 2019-12-30 | 2019-12-30 | Multiple filtration has dust cup structure of automatic control dust refluence |
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| CN201911393856.9A CN111000489A (en) | 2019-12-30 | 2019-12-30 | Multiple filtration has dust cup structure of automatic control dust refluence |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112603196A (en) * | 2020-12-28 | 2021-04-06 | 追创科技(苏州)有限公司 | Cleaning device's seal assembly and cleaning device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112603196A (en) * | 2020-12-28 | 2021-04-06 | 追创科技(苏州)有限公司 | Cleaning device's seal assembly and cleaning device |
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