Dust remover and dust removal method thereof

Abstract

The invention discloses a dust remover and a dust removing method thereof. The dust remover comprises a shell and a filtering part which is arranged in the shell and externally connected with dust-containing gas, the filtering part comprises a plurality of groups of filtering assemblies which are inserted into the shell and extend to the outside of the shell by a preset part, each group of filtering assemblies comprises an outer-layer filtering cylinder which is inserted into the shell and is positioned in the shell, an outer-layer opening and an outer-layer positioning hole are formed in the annular surface of the outer-layer filtering cylinder, and an outer-layer clamping groove is formed in the vertical surface of the outer-layer filtering cylinder; the middle-layer filter cartridge is inserted into the outer-layer filter cartridge, a part of the middle-layer filter cartridge extends out of the outer-layer filter cartridge, a middle-layer opening and a middle-layer positioning hole are formed in the annular surface of the middle-layer filter cartridge, a middle-layer clamping groove is formed in the vertical surface of the middle-layer filter cartridge, and a middle-layer buckle matched with the outer-layer clamping groove is arranged on the middle-layer filter cartridge; the inner-layer filter cartridge is connected with the middle-layer filter cartridge in an inserted mode, the extending part of the inner-layer filter cartridge extends out of the middle-layer filter cartridge, an inner-layer opening and an inner-layer positioning hole are formed in the annular face of the inner-layer filter cartridge, and an inner-layer buckle matched with the middle-layer clamping groove is arranged on the inner-layer filter cartridge.

Description

Technical Field

[0001] The present invention relates to the field of dust removal, in particular to a dust collector and a dust removal method thereof. Background Art

[0002] A dust collector is a dust filtering device that is suitable for collecting fine, dry, non-fibrous dust.

[0003] When the dust-laden gas enters the dust collector, the large and heavy dust particles settle due to gravity and fall into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is retained, and the gas is purified.

[0004] After the filter material has been used for a period of time, a layer of dust accumulates on the surface of the filter material due to the effects of screening, collision, retention, diffusion, static electricity, etc. As the dust accumulates on the surface of the filter material, the efficiency and resistance of the dust collector increase accordingly. When the pressure difference on both sides of the filter material is large, some fine dust particles that have attached to the filter material will be squeezed over, causing the efficiency of the dust collector to decrease.

[0005] In order to solve the problems of the above-mentioned single-layer solution, the current solution is to design the filter material into multiple layers to improve the filtering effect. However, after designing the multi-layer filter material, since each layer of filter material is nested one layer above the other, it is an independent individual and not connected, resulting in the inner layer of filter material being unable to remove dust, affecting the work; Therefore, it is necessary to design a dust collector with multiple layers of filter materials, while also facilitating dust removal of the inner filter materials, which is a problem that needs to be solved at present. Summary of the Invention

[0006] Purpose of the invention: To provide a dust collector and a dust removal method thereof to solve the above-mentioned problems existing in the prior art.

[0007] Technical solution: A dust collector, comprising: A housing, and a filter portion disposed within the housing and externally connected to the dust-laden gas; The filter unit includes: The filter assembly is designed in multiple groups, plugged into the housing, and extending a predetermined portion to the outside of the housing, each group including: The outer filter cartridge is plugged into the outer shell and located inside the outer shell. The outer filter cartridge has an outer opening and an outer positioning hole on its annular surface and an outer slot on its vertical surface. The middle filter cartridge is plugged into the outer filter cartridge and extends partially outside the outer filter cartridge. The middle filter cartridge has a middle opening and a middle positioning hole on its annular surface and a middle card slot on its vertical surface. The middle filter cartridge is provided with a middle card buckle that matches the outer card slot. The inner filter cartridge is plugged into the middle filter cartridge and extends partially outside the middle filter cartridge. An inner opening and an inner positioning hole are formed on the annular surface of the inner filter cartridge. The inner filter cartridge is provided with an inner buckle adapted to the middle slot. Positioning pieces are designed in multiple groups, connected to the shell, and adapted to the outer positioning holes, the middle positioning holes, and the inner positioning holes; The driving part is connected to the outer shell and the inner filter cartridge.

[0008] The present invention completes the filtration of the gas by designing a three-layer filter cartridge. At the same time, corresponding outer layer openings, middle layer openings, and inner layer openings are opened on the three-layer filter cartridge, and then the filter cartridge is vibrated by an ultrasonic generator or a vibrator, so that dust is separated from the filter cartridge and falls through the gaps between the filter cartridge layers, and falls out through the outer layer openings, middle layer openings, and inner layer openings, thereby completing the dust removal work. Compared with traditional single-layer filtration, the filtration effect is better. At the same time, under the premise of designing multi-layer filter media, the problem of difficult removal of inner layer dust is avoided.

[0009] In a further embodiment, a filter screen and a plurality of support frames are provided in the housing, and the support frames are provided with slots; The filter screen is located above the filter assembly; The top of the shell is provided with a filter outlet, the side is provided with a filter inlet communicated with the inner filter cartridge, and the bottom is provided with a detachably connected dust collecting box.

[0010] A cleaning portion is provided on the side of the housing; The cleaning unit includes a plurality of fans, the output ends of the fans are connected to the outside of the housing and are located above the filter screen.

[0011] In a further embodiment, the outer filter cartridge is provided with an outer positioning strip adapted to fit the notch; The middle filter cartridge is provided with a middle sealing strip in contact with the inner wall of the outer filter cartridge; The inner filter cartridge is provided with an inner sealing strip in contact with the inner wall of the middle filter cartridge; The inner filter cartridge is provided with a driving shaft, and the driving shaft is sleeved with a driving wheel; The width of the outer layer opening is greater than that of the middle layer opening, and the end of the middle layer opening is greater than the width of the inner layer opening.

[0012] The outer filter cartridge, the middle filter cartridge, and the inner filter cartridge are all composed of a frame and a filter medium arranged on the outer surface of the frame, and the filter medium includes a filter screen or a filter bag; Alternatively, filter holes are opened on the outer filter cartridge, the middle filter cartridge, and the inner filter cartridge, and the holes are filled with a material, wherein the filter material includes filter cotton; By designing the middle and inner sealing strips, dust-laden gas is prevented from entering the next layer through the gaps between the layers, thus avoiding affecting the filtering effect.

[0013] In a further embodiment, the middle layer buckle and inner layer buckle structures are buckle units with the same structure, and each group includes: A snap-on housing, wherein a through slot is formed in the snap-on housing and a return spring is provided in the through slot; A buckle telescopic body is adapted to the through slot and connected to the return spring, and a movable cavity is formed in the middle of the buckle telescopic body; The buckle movable body is hinged in the movable cavity of the buckle telescopic body; A buckle limiting body is installed on one side of the buckle housing, and the buckle limiting body is provided with a buckle spring connected to one end of the buckle movable body; The buckle housing of the middle buckle is installed on the middle filter cartridge, and the buckle movable body of the middle buckle abuts against the outer filter cartridge; The buckle shell of the inner layer buckle is installed on the inner layer filter cartridge, and the buckle movable body of the inner layer buckle is in contact with the middle layer filter cartridge.

[0014] The working force of the buckle spring of the middle buckle is smaller than that of the buckle spring of the inner buckle.

[0015] By designing the snap unit, the middle filter cartridge can be driven by the inner filter cartridge to complete movement in the first direction. At the same time, in conjunction with the positioning piece, the middle filter cartridge and the inner filter cartridge can be limited by the positioning pin when they move in the second direction, and the middle snap and the inner snap can be gradually separated from the middle slot and the inner slot.

[0016] In a further embodiment, the positioning member comprises: A positioning plate connected to the housing, wherein a through cavity is formed in the positioning plate; A positioning pin is inserted into the positioning plate and adapted to the through cavity. One end of the positioning pin is provided with a positioning limit ring that abuts against the positioning plate, and the other end is provided with a slope of a predetermined angle. The end of the positioning pin close to the slope is provided with a positioning slot; A positioning slide column connected to the positioning plate and adapted to the positioning slide groove; The positioning spring is sleeved on the positioning pin, with one end connected to the positioning pin and the other end connected to the positioning plate.

[0017] By designing the positioning parts, the multi-layer filter cartridges can be limited in two directions when not under force. At the same time, they can retreat when under force in the first direction, and do not retreat when under force in the second direction. In conjunction with the snap-fit ​​unit, step-by-step driving in the first direction and step-by-step disengagement in the second direction are completed.

[0018] In a further embodiment, the positioning pins are adapted to the outer positioning holes, the middle positioning holes and the inner positioning holes.

[0019] The slope faces the side of the buckle limiting body located in the first direction.

[0020] In a further embodiment, the driving portion comprises: A driving motor is connected to the housing, and an output wheel is provided at an output end of the driving motor; The transmission belt is sleeved on the output wheel and the driving wheel.

[0021] In a further embodiment, a vibrator is provided in the outer filter cartridge, the middle filter cartridge and the inner filter cartridge.

[0022] In a further embodiment, an ultrasonic generator is provided in the housing, and a working area of ​​the ultrasonic generator is an area where the filter assembly is located.

[0023] A dust removal method, comprising: Step 1: During filtration, connect the dust-containing gas to the filter inlet, discharge the dust-containing gas into the inner filter cartridge, filter it through the inner filter cartridge, the middle filter cartridge, and the outer filter cartridge, and then filter it through the filter screen, and discharge it to the designated location through the filter outlet; Step 2: After using the dust collector for a long time, it is necessary to remove dust from the inside of the dust collector to avoid clogging. When removing dust, first remove the dust from the filter. Introduce air through the fan and blow air in the opposite direction to remove the dust attached to the filter until the dust falls into the dust collection box. After the filter is dusted, remove the dust from the filter assembly. When the filter assembly is removing dust, the driving member drives the inner filter cartridge to rotate in the first direction. During the rotation, the driving motor drives the output wheel to rotate, drives the transmission belt to move, drives the driving wheel to rotate, drives the driving shaft to rotate, drives the inner filter cartridge to rotate, and then drives the filter cartridge to move, drives the inner buckle to move, and when the buckle movable body of the inner buckle enters the middle slot, it continues to move, drives the middle filter cartridge to move, and then drives the middle buckle to move, until the middle buckle is locked in the outer slot and stops moving. At this time, the outer opening, middle opening, and inner opening correspond to each other; When the inner filter cartridge and the middle filter cartridge move in the first direction, the inner buckle and the middle buckle are limited by the buckle limiter, overcoming the slope limit of the limit pin, so that the limit pin retreats step by step; Step 3: Start the vibrator or ultrasonic generator to vibrate the filter cartridge, so that the dust is separated from the gaps between the layers and discharged from the outer, middle, and inner layers. The dust falls into the dust collection box, completing the dust removal. Step 4: After the dust removal is completed, each filter cartridge is reset. During the reset, the inner filter cartridge is driven by the driving member to move in the second direction, and the inner filter cartridge drives the inner buckle to drive the middle filter cartridge to move in the second direction, and drives the middle buckle to move in the second direction. At this time, the outer filter cartridge is limited by the positioning pin, and the buckle movable body of the middle filter buckle is not limited by the buckle limiting body. The buckle movable body retreats and disengages from the outer slot. When the middle layer positioning hole is aligned with the positioning pin, the middle layer filter cartridge is reset. At this time, the positioning pin is affected by the positioning spring and enters the middle layer positioning hole to limit the middle layer filter cartridge. The inner filter cartridge continues to move, and the inner buckle movable body is not limited by the buckle limiting body. The buckle movable body disengages from the middle slot until the inner positioning hole of the inner filter cartridge corresponds to the positioning pin, completing the reset. After the reset, the positioning pin completes the positioning of the inner filter cartridge.

[0024] When the inner filter cartridge moves in the first direction, it squeezes the slope of the positioning pin, causing the positioning pin to retreat; When the middle filter cartridge moves in the first direction, it squeezes the slope of the positioning pin, causing the positioning pin to retreat; When the filter cartridge moves in the first direction, the inner layer buckle and the middle layer buckle are provided with a first limiter in the first direction, so that the middle layer buckle and the inner layer buckle will not be dislocated when the filter cartridge moves in the first direction. As a result, when the inner layer filter cartridge rotates, the middle layer filter cartridge can be driven to rotate as well, generating an angle force with the positioning pin with the sloped surface in the first direction, causing the positioning pin to retreat. When the inner filter cartridge and the middle filter cartridge move in the second direction, they are limited by the direct surface of the positioning pin. At the same time, the buckle movable bodies of the inner buckle and the middle buckle are not limited by the buckle limiting body. The positioning pin and the buckle springs in the inner buckle and the middle buckle exert an angular force, so that the buckle movable body can retreat.

[0025] When the positioning piece is working, when the slope of the positioning pin is under force, the positioning pin squeezes the positioning spring to retreat; when the slope is not under force, the positioning spring drives the positioning pin to reset; When the inner layer buckle and the middle layer buckle are working, when the buckle movable body encounters the middle layer slot or the outer layer slot, the reset spring drives the buckle telescopic body to extend, driving the buckle movable body to extend into the middle layer slot or the outer layer slot. At this time, when the buckle movable body is subjected to force in the first direction, it is limited by the buckle limiting body. When the buckle movable body is subjected to force in the second direction, the force is greater than the working force of the buckle spring, the buckle movable body rotates, dislocates, and detaches from the middle layer slot or the outer layer slot.

[0026] Beneficial effects: The present invention discloses a dust collector and a dust removal method thereof. The present invention completes the filtration of dust-laden gas by designing a three-layer filter cartridge. At the same time, corresponding outer layer openings, middle layer openings, and inner layer openings are opened on the three-layer filter cartridge, and the filter cartridge is vibrated by an ultrasonic generator or a vibrator, so that dust is separated from the filter cartridge and falls through the gaps between the filter cartridge layers, and falls out through the outer layer openings, middle layer openings, and inner layer openings, thereby completing the dust removal work. Compared with traditional single-layer filtration, the filtration effect is better. At the same time, under the premise of designing multi-layer filter media, the problem of difficult removal of inner layer dust is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a front structural schematic diagram of the present invention.

[0028] Figure 2 It is a schematic diagram of the back structure of the present invention.

[0029] Figure 3 It is a schematic diagram of the internal structure of the present invention.

[0030] Figure 4 It is a schematic structural diagram of the filter assembly of the present invention.

[0031] Figure 5 It is a schematic structural diagram of the filter assembly of the present invention.

[0032] Figure 6 It is a schematic diagram of the explosion structure of the filter assembly of the present invention.

[0033] Figure 7 It is a schematic diagram of the positioning holes of the filter assembly of the present invention.

[0034] Figure 8 It is a schematic diagram of the cooperation of the sealing strips of the filter assembly of the present invention.

[0035] Figure 9 It is a schematic diagram of the buckles and slots of the filter assembly of the present invention.

[0036] Figure 10 It is a schematic diagram of the positioning member structure of the present invention.

[0037] Figure 11 It is a structural schematic diagram of the buckle unit of the present invention.

[0038] The accompanying drawings are: 1. Housing; 11. Support frame; 12. Filter; 2. Filter outlet; 3. Filter inlet; 4. Dust collection box; 5. Cleaning unit; 6. Filter unit; 61. Filter assembly; 611, outer filter cartridge; 611A, outer port; 611B, outer slot; 611C, outer positioning hole; 611D, outer positioning strip; 612, middle layer filter cartridge; 612A, middle layer port; 612B, middle layer slot; 612C, middle layer positioning hole; 612D, middle layer sealing strip; 612E, middle layer buckle; 613, inner filter cartridge; 613A, inner port; 613B, drive shaft; 613C, inner positioning hole; 613D, inner sealing strip; 613E, inner buckle; E1, buckle housing; E2, buckle telescopic body; E3, buckle movable body; E4, buckle spring; E5, buckle limiter; 62. Transmission belt; 63. Drive motor; 64, positioning member; 641, positioning plate; 642, positioning pin; 643, positioning slide; 644, positioning spring; 645, positioning slide; 646, slope; 647, positioning limit ring; DETAILED DESCRIPTION The present application relates to a dust collector and a dust removal method thereof, which are explained in detail below through specific implementation methods.

[0039] A dust collector comprising: A housing 1, and a filter 6 disposed in the housing 1 and externally connected to dust-laden gas; The housing 1 is provided with a filter screen 12 and a plurality of support frames 11, and the support frames 11 are provided with slots; The filter screen 12 is located above the filter assembly 61; The top of the housing 1 is provided with a filter outlet 2, the side is provided with a filter inlet 3 connected to the inner filter cartridge 613, and the bottom is provided with a detachable dust box 4.

[0040] The side of the housing 1 is provided with a cleaning portion 5; The cleaning unit 5 includes a plurality of fans, the output ends of which are connected to the interior of the housing 1 and are located above the filter 12 .

[0041] The filter unit 6 includes: The filter assembly 61 is designed in multiple groups, plugged into the housing 1, and extending a predetermined portion into the interior of the housing 1. Each group includes: The outer filter cartridge 611 is plugged into the housing 1 and located inside the housing 1. The outer filter cartridge 611 has an outer opening 611A and an outer positioning hole 611C on its annular surface, and an outer slot 611B on its vertical surface. The middle filter cartridge 612 is inserted into the outer filter cartridge 611 and extends partially outside the outer filter cartridge 611. The middle filter cartridge 612 has a middle opening 612A and a middle positioning hole 612C on its annular surface, and a middle clamping groove 612B on its vertical surface. The middle filter cartridge 612 is provided with a middle clamping buckle 612E that matches the outer clamping groove 611B. The inner filter cartridge 613 is plugged into the middle filter cartridge 612 and extends partially outside the middle filter cartridge 612. An inner opening 613A and an inner positioning hole 613C are formed on the annular surface of the inner filter cartridge 613. An inner buckle 613E is provided on the inner filter cartridge 613 to fit with the middle clamping groove 612B. The outer filter cartridge 611 is provided with an outer positioning strip 611D adapted to the notch; The middle filter cartridge 612 is provided with a middle sealing strip 612D in contact with the inner wall of the outer filter cartridge 611; The inner filter cartridge 613 is provided with an inner sealing strip 613D in contact with the inner wall of the middle filter cartridge 612; The inner filter cartridge 613 is provided with a drive shaft 613B, and the drive shaft 613B is sleeved with a drive wheel; The width of the outer layer opening 611A is greater than the width of the middle layer opening 612A, and the end of the middle layer opening 612A is greater than the width of the inner layer opening 613A.

[0042] The outer filter cartridge 611, the middle filter cartridge 612, and the inner filter cartridge 613 are all composed of a frame and a filter medium disposed on the outer surface of the frame, wherein the filter medium includes a filter screen or a filter bag; Alternatively, filter holes are opened on the outer filter cartridge 611, the middle filter cartridge 612, and the inner filter cartridge 613, and filter materials are filled in the holes, wherein the filter materials include filter cotton; By designing the middle sealing strip 612D and the inner sealing strip 613D, dust-laden gas is prevented from entering the next layer through the gaps between the layers, thereby avoiding affecting the filtering effect.

[0043] The middle layer buckle 612E and the inner layer buckle 613E are buckle units with the same structure, and each group includes: A snap-on housing E1, wherein a through slot is formed in the snap-on housing E1 and a return spring is provided in the through slot; The buckle telescopic body E2 is adapted to the through slot and connected to the return spring. A movable cavity is formed in the middle of the buckle telescopic body E2; The buckle movable body E3 is hinged in the movable cavity of the buckle telescopic body E2; A buckle limiter E5 is mounted on one side of the buckle housing E1, and a buckle spring E4 is provided on the buckle limiter E5 and connected to one end of the buckle movable body E3; The buckle housing E1 of the middle buckle 612E is installed on the middle filter cartridge 612, and the buckle movable body E3 of the middle buckle 612E abuts against the outer filter cartridge 611; The buckle housing E1 of the inner layer buckle 613E is installed on the inner layer filter cartridge 613 , and the buckle movable body E3 of the inner layer buckle 613E abuts against the middle layer filter cartridge 612 .

[0044] The working force of the buckle spring E4 of the middle buckle 612E is smaller than that of the buckle spring E4 of the inner buckle 613E.

[0045] By designing the snap unit, the middle filter cartridge 612 can be driven by the inner filter cartridge 613 to complete the movement in the first direction. At the same time, in conjunction with the positioning member 64, the middle filter cartridge 612 and the inner filter cartridge 613 can be limited by the positioning pin 642 when they move in the second direction, and the middle snap 612E and the inner snap 613E can be gradually separated from the middle slot 612B and the inner slot.

[0046] Positioning members 64 are designed in multiple groups, connected to the housing 1, and adapted to the outer positioning holes 611C, the middle positioning holes 612C, and the inner positioning holes 613C; The positioning member 64 includes: A positioning plate 641 is connected to the housing 1 and has a through cavity formed therein; A positioning pin 642 is inserted into the positioning plate 641 and adapted to the through cavity. One end of the positioning pin 642 is provided with a positioning limit ring 647 that abuts against the positioning plate 641, and the other end is provided with a slope 646 at a predetermined angle. A positioning slot 643 is provided on the end of the positioning pin 642 close to the slope 646; A positioning slide 645 connected to the positioning plate 641 and adapted to the positioning slot 643; The positioning spring 644 is sleeved on the positioning pin 642 , with one end connected to the positioning pin 642 and the other end connected to the positioning plate 641 .

[0047] By designing the positioning piece 64, the multi-layer filter cartridge can be bidirectionally limited when not under force. At the same time, it can retreat when under force in the first direction, and not retreat when under force in the second direction. Cooperating with the snap unit, it completes step-by-step driving in the first direction and step-by-step separation in the second direction.

[0048] The driving unit is connected to the outer shell 1 and to the inner filter cartridge 613 .

[0049] The driving unit includes: A driving motor 63 is connected to the housing 1, and an output wheel is provided at the output end of the driving motor 63; The transmission belt 62 is sleeved on the output wheel and the driving wheel.

[0050] The present invention achieves filtration of the gas by designing a three-layer filter cartridge. At the same time, corresponding outer layer openings 611A, middle layer openings 612A, and inner layer openings 613A are provided on the three-layer filter cartridge. Furthermore, an ultrasonic generator or vibrator is used to vibrate the filter cartridge, causing dust to escape from the filter cartridge and fall through the gaps between the filter cartridge layers, finally falling out through the outer layer openings 611A, middle layer openings 612A, and inner layer openings 613A, thereby completing the dust removal process. Compared with traditional single-layer filtration, the filtration effect is better. At the same time, under the premise of designing multi-layer filter media, the problem of difficult removal of inner layer dust is avoided.

[0051] The positioning pins 642 are adapted to the outer positioning holes 611C, the middle positioning holes 612C and the inner positioning holes 613C.

[0052] The slope 646 faces the side of the buckle limiter E5 in the first direction.

[0053] Vibrators are provided inside the outer filter cartridge 611 , the middle filter cartridge 612 and the inner filter cartridge 613 .

[0054] An ultrasonic generator is provided in the housing 1 , and the working area of ​​the ultrasonic generator is the area where the filter assembly 61 is located.

[0055] A dust removal method, comprising: During filtration, the dust-laden gas is connected to the filter inlet 3 and discharged into the inner filter cartridge 613, filtered through the inner filter cartridge 613, the middle filter cartridge 612, and the outer filter cartridge 611, and then filtered through the filter screen 12, and discharged to the designated location through the filter outlet 2; After the dust collector has been used for a long time, it is necessary to remove dust from the inside of the dust collector to avoid clogging. When removing dust, the filter 12 is first removed. Air is introduced through the fan and blown in the opposite direction to the filter 12 to remove the dust attached to the filter 12 until the dust falls into the dust collection box 4. After the filter 12 is completely removed, the filter assembly 61 is removed. When the filter assembly 61 is removing dust, the inner filter cartridge 613 is driven to rotate in the first direction by the driving member. During the rotation, the output wheel is driven to rotate by the driving motor 63, which drives the transmission belt 62 to move, drives the driving wheel to rotate, drives the driving shaft 613B to rotate, drives the inner filter cartridge 613 to rotate, and then drives the filter cartridge to move, drives the inner layer buckle 613E to move, and when the buckle movable body E3 of the inner layer buckle 613E enters the middle layer slot 612B, it continues to move, drives the middle layer filter cartridge 612 to move, and then drives the middle layer buckle 612E to move, until the middle layer buckle 612E is locked in the outer layer slot 611B and stops moving. At this time, the outer layer opening 611A, the middle layer opening 612A, and the inner layer opening 613A correspond to each other; When the inner filter cartridge 613 and the middle filter cartridge 612 move in the first direction, the inner buckle 613E and the middle buckle 612E are limited by the buckle limiter E5, overcoming the limit of the slope 646 of the limit pin, causing the limit pin to retreat step by step; Start the vibrator or ultrasonic generator to vibrate the filter cartridge, so that the dust is separated from the gaps between the layers and discharged from the outer layer port 611A, the middle layer port 612A, and the inner layer port 613A. The dust falls into the dust collection box 4, completing the dust removal. After dust removal is completed, each filter cartridge is reset. During the reset, the inner filter cartridge 613 is driven by the driving member to move in the second direction, and the inner filter cartridge drives the inner layer buckle 613E to drive the middle filter cartridge 612 to move in the second direction, and drives the middle layer buckle 612E to move in the second direction. At this time, the outer filter cartridge 611 is limited by the positioning pin 642, and the buckle movable body E3 of the middle layer filter buckle is not limited by the buckle limiting body E5. The buckle movable body E3 retreats and disengages from the outer layer slot 611B. When the middle layer positioning hole 612C is aligned with the positioning pin 642, the middle layer filter cartridge is reset. At this time, the positioning pin 642 is affected by the positioning spring 644 and enters the middle layer positioning hole 612C to limit the middle layer filter cartridge 612. The inner filter cartridge 613 continues to move, and the buckle movable body E3 of the inner buckle 613E is not limited by the buckle limit body E5. The buckle movable body E3 disengages from the middle slot 612B until the inner positioning hole 613C of the inner filter cartridge 613 corresponds to the positioning pin 642, completing the reset. After the reset, the positioning pin 642 completes the positioning of the inner filter cartridge 613.

[0056] When the inner filter cartridge 613 moves in the first direction, it presses the slope 646 of the positioning pin 642, causing the positioning pin 642 to retreat; When the middle filter cartridge 612 moves in the first direction, it presses the slope 646 of the positioning pin 642, causing the positioning pin 642 to retreat; During movement in the first direction, the inner layer buckle 613E and the middle layer buckle 612E are provided with a first stopper in the first direction, so that the middle layer buckle 612E and the inner layer buckle 613E will not be dislocated during movement in the first direction. As a result, when the inner layer filter cartridge 613 rotates, the middle layer filter cartridge 612 can also rotate, generating an angle force with the positioning pin 642 with the sloped surface 646 in the first direction, causing the positioning pin 642 to retreat. When the inner filter cartridge 613 and the middle filter cartridge 612 move in the second direction, they are directly limited by the positioning pin 642. At the same time, the buckle movable body E3 of the inner buckle 613E and the middle buckle 612E is not limited by the buckle limiting body E5. The positioning pin 642 and the tension of the buckle spring E4 in the inner buckle 613E and the middle buckle 612E exert an angular force, so that the buckle movable body E3 can retreat.

[0057] When the positioning member 64 is working, when the slope 646 of the positioning pin 642 is stressed, the positioning pin 642 squeezes the positioning spring 644 to retreat. When the slope 646 is not stressed, the positioning spring 644 drives the positioning pin 642 to reset. When resetting, the positioning limit ring 647 limits the reset to the maximum position. When the inner layer buckle 613E and the middle layer buckle 612E are working, when the buckle movable body E3 encounters the middle layer slot 612B or the outer layer slot 611B, the return spring drives the buckle telescopic body E2 to extend, driving the buckle movable body E3 to extend into the middle layer slot 612B or the outer layer slot 611B. At this time, when the buckle movable body E3 is subjected to force in the first direction, it is limited by the buckle limiting body E5. When the buckle movable body E3 is subjected to force in the second direction, the force is greater than the working force of the buckle spring E4, the buckle movable body E3 rotates, dislocates, and detaches from the middle layer slot 612B or the outer layer slot 611B.

[0058] Working principle: During filtration, the dust-laden gas is connected to the filter inlet 3, and the dust-laden gas is discharged into the inner filter cartridge 613, filtered through the inner filter cartridge 613, the middle filter cartridge 612, and the outer filter cartridge 611, and then filtered through the filter screen 12, and discharged to the designated location through the filter outlet 2; When the filter assembly 61 is removing dust, the inner filter cartridge 613 is driven by the driving member to rotate in the first direction, driving the inner buckle 613E to move. When the buckle movable body E3 of the inner buckle 613E enters the middle clamping groove 612B, it continues to move, driving the middle filter cartridge 612 to move, and then driving the middle buckle 612E to move, until the middle buckle 612E is locked into the outer clamping groove 611B and stops moving. At this time, the outer layer opening 611A, the middle layer opening 612A, and the inner layer opening 613A correspond to each other; When the inner filter cartridge 613 and the middle filter cartridge 612 move in the first direction, the inner buckle 613E and the middle buckle 612E are limited by the buckle limiter E5, overcoming the limit of the slope 646 of the limit pin, causing the limit pin to retreat step by step; Start the vibrator or ultrasonic generator to vibrate the filter cartridge, so that the dust is separated from the gaps between the layers and discharged from the outer layer port 611A, the middle layer port 612A, and the inner layer port 613A. The dust falls into the dust collection box 4, completing the dust removal. After dust removal is completed, each filter cartridge is reset. During the reset, the inner filter cartridge 613 is driven by the driving member to move in the second direction, and the inner filter cartridge drives the inner layer buckle 613E to drive the middle filter cartridge 612 to move in the second direction, and drives the middle layer buckle 612E to move in the second direction. At this time, the outer filter cartridge 611 is limited by the positioning pin 642, and the buckle movable body E3 of the middle layer filter buckle is not limited by the buckle limiting body E5. The buckle movable body E3 retreats and disengages from the outer layer slot 611B. When the middle layer positioning hole 612C is aligned with the positioning pin 642, the middle layer filter cartridge is reset. At this time, the positioning pin 642 is affected by the positioning spring 644 and enters the middle layer positioning hole 612C to limit the middle layer filter cartridge 612. The inner filter cartridge 613 continues to move, and the buckle movable body E3 of the inner buckle 613E is not limited by the buckle limit body E5. The buckle movable body E3 disengages from the middle slot 612B until the inner positioning hole 613C of the inner filter cartridge 613 corresponds to the positioning pin 642, completing the reset. After the reset, the positioning pin 642 completes the positioning of the inner filter cartridge 613.

[0059] The preferred specific embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above specific embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and these equivalent transformations all fall within the scope of protection of the present invention.

Claims

1. A dust collector comprising: A housing, and a filter portion disposed within the housing and externally connected to the dust-laden gas; It is characterized in that the filter unit includes: The filter assembly is designed in multiple groups, plugged into the housing, and extending a predetermined portion to the outside of the housing, each group including: The outer filter cartridge is plugged into the outer shell and located inside the outer shell. The outer filter cartridge has an outer opening and an outer positioning hole on its annular surface and an outer slot on its vertical surface. The middle filter cartridge is plugged into the outer filter cartridge and extends partially outside the outer filter cartridge. The middle filter cartridge has a middle opening and a middle positioning hole on its annular surface and a middle card slot on its vertical surface. The middle filter cartridge is provided with a middle card buckle that matches the outer card slot. The inner filter cartridge is plugged into the middle filter cartridge and extends partially outside the middle filter cartridge. An inner opening and an inner positioning hole are formed on the annular surface of the inner filter cartridge. The inner filter cartridge is provided with an inner buckle adapted to the middle slot. Positioning pieces are designed in multiple groups, connected to the shell, and adapted to the outer positioning holes, the middle positioning holes, and the inner positioning holes; The driving part is connected to the outer shell and the inner filter cartridge.

2. A dust collector according to claim 1, characterized in that: A filter screen and a plurality of support frames are provided in the housing, and the support frames are provided with slots; The filter screen is located above the filter assembly; The top of the shell is provided with a filter outlet, the side is provided with a filter inlet communicated with the inner filter cartridge, and the bottom is provided with a detachably connected dust collecting box.

3. A dust collector according to claim 1, characterized in that: The outer filter cartridge is provided with an outer positioning strip adapted to the notch; The middle filter cartridge is provided with a middle sealing strip in contact with the inner wall of the outer filter cartridge; The inner filter cartridge is provided with an inner sealing strip in contact with the inner wall of the middle filter cartridge; The inner filter cartridge is provided with a driving shaft, and the driving shaft is sleeved with a driving wheel; The width of the outer layer opening is greater than that of the middle layer opening, and the end of the middle layer opening is greater than the width of the inner layer opening.

4. A dust collector according to claim 1, characterized in that: The middle layer buckle and the inner layer buckle are buckle units with the same structure, and the buckle units include: A snap-on housing, wherein a through slot is formed in the snap-on housing and a return spring is provided in the through slot; A buckle telescopic body is adapted to the through slot and connected to the return spring, and a movable cavity is formed in the middle of the buckle telescopic body; The buckle movable body is hinged in the movable cavity of the buckle telescopic body; A buckle limiting body is installed on one side of the buckle housing, and the buckle limiting body is provided with a buckle spring connected to one end of the buckle movable body; The buckle housing of the middle buckle is installed on the middle filter cartridge, and the buckle movable body of the middle buckle abuts against the outer filter cartridge; The buckle shell of the inner layer buckle is installed on the inner layer filter cartridge, and the buckle movable body of the inner layer buckle is in contact with the middle layer filter cartridge.

5. A dust collector according to claim 1, characterized in that: The positioning member includes: A positioning plate connected to the housing, wherein a through cavity is formed in the positioning plate; A positioning pin is inserted into the positioning plate and adapted to the through cavity. One end of the positioning pin is provided with a positioning limit ring that abuts against the positioning plate, and the other end is provided with a slope of a predetermined angle. The end of the positioning pin close to the slope is provided with a positioning slot; A positioning slide column connected to the positioning plate and adapted to the positioning slide groove; The positioning spring is sleeved on the positioning pin, with one end connected to the positioning pin and the other end connected to the positioning plate.

6. A dust collector according to claim 5, characterized in that: The positioning pins are adapted to the outer layer positioning holes, the middle layer positioning holes and the inner layer positioning holes; The slope faces the side of the buckle limiting body located in the first direction.

7. A dust collector according to claim 1, characterized in that: The driving unit includes: A driving motor is connected to the housing, and an output wheel is provided at an output end of the driving motor; The transmission belt is sleeved on the output wheel and the driving wheel.

8. A dust collector according to claim 1, characterized in that: Vibrators are arranged inside the outer filter cartridge, the middle filter cartridge and the inner filter cartridge.

9. A dust collector according to claim 1, characterized in that: An ultrasonic generator is arranged in the shell, and the working area of ​​the ultrasonic generator is the area where the filter component is located.

10. A dust removal method, implemented based on the dust collector according to any one of claims 1 to 9, characterized in that: include: During filtration, the dust-laden gas is connected to the filter inlet, discharged into the inner filter cartridge, filtered through the inner filter cartridge, the middle filter cartridge, the outer filter cartridge, and then filtered through the filter screen, and discharged to the designated location through the filter outlet; When the filter assembly is removing dust, the driving member drives the inner filter cartridge to rotate in the first direction, driving the inner buckle to move. When the buckle movable body of the inner buckle enters the middle slot, it continues to move, driving the middle filter cartridge to move, and then driving the middle buckle to move, until the middle buckle is engaged in the outer slot and stops moving. At this time, the outer opening, the middle opening, and the inner opening correspond to each other. When the inner filter cartridge and the middle filter cartridge move in the first direction, the inner buckle and the middle buckle are limited by the buckle limiter, overcoming the slope limit of the limit pin, so that the limit pin retreats step by step; Start the vibrator or ultrasonic generator to make the filter cartridge vibrate, so that the dust will be separated from the gaps between the layers and discharged from the outer layer port, middle layer port, and inner layer port. The dust will fall into the dust collection box, completing the dust removal. After the dust removal is completed, each filter cartridge is reset. During the reset, the driving member drives the inner filter cartridge to move in the second direction, and the inner filter cartridge drives the inner buckle to drive the middle filter cartridge to move in the second direction, and drives the middle buckle to move in the second direction. At this time, the outer filter cartridge is limited by the positioning pin, and the buckle movable body of the middle filter buckle is not limited by the buckle limiting body, and the buckle movable body retreats and disengages from the outer card slot; When the middle layer positioning hole is aligned with the positioning pin, the middle layer filter cartridge is reset. At this time, the positioning pin is affected by the positioning spring and enters the middle layer positioning hole to limit the middle layer filter cartridge. The inner filter cartridge continues to move, and the inner buckle movable body is not limited by the buckle limiting body. The buckle movable body disengages from the middle slot until the inner positioning hole of the inner filter cartridge corresponds to the positioning pin, completing the reset. After the reset, the positioning pin completes the positioning of the inner filter cartridge.

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