CN219250036U - Dust filtering cup assembly - Google Patents

Abstract

The utility model relates to a filter dirt cup subassembly relates to dust catcher accessory technical field, and it includes dirt cup section of thick bamboo, han pao, filter mantle and filter tube, the air outlet has been seted up to dirt cup section of thick bamboo one end, han pao sets up in dirt cup section of thick bamboo along dirt cup section of thick bamboo axis, the inside and air outlet intercommunication of han pao, the filter tube cover is located the han pao lateral wall just filter tube lateral wall forms annular enclosure with dirt cup section of thick bamboo inner wall, the filter tube lateral wall is located to the filter mantle ring, a plurality of first filtration holes have been seted up to the filter mantle in the terminal surface towards the air outlet, a plurality of second filtration holes have been seted up to the filter tube in the lateral wall position above being close to the filter mantle. The filter dust cup assembly has the effect of better keeping the filter performance of the filter dust cup assembly in continuous operation.

Description

Dust filtering cup assembly

Technical Field

The application relates to the technical field of dust collector accessories, in particular to a dust filtering cup assembly.

Background

Dirt cups are one of the important components of a vacuum cleaner, and a dirt cup cartridge is typically provided with a sea bag to filter and collect dirt. The HEPA is high-efficiency filter paper, and can filter 99% of fine particles in the air.

In the related art, a dust cup barrel is fixed on a dust collector main body and provided with a dust collection opening, a bracket is arranged in the dust cup barrel, and a HEPA sleeve is arranged on the outer side of the bracket. In the working process, air mixed with sundries such as dust enters the dust cup barrel from the dust collection opening to form a spiral air duct and is filtered by the HEPA, the filtered air is discharged through the outlet, and the sundries are retained in the dust cup, so that the air is filtered.

Because the dust cup directly filters sundries through the handkerchief in the work, larger sundries such as hair, coarse particles and the like are easy to be attached to the surface of the handkerchief, the handkerchief is easy to be blocked after a period of work, the filtering effect is reduced, and the handkerchief needs to be suspended for cleaning in time, so that inconvenience is caused.

Disclosure of Invention

To better maintain the filtering performance of the filter dirt cup assembly during continued operation, the present application provides a filter dirt cup assembly.

The application provides a filter dirt cup subassembly adopts following technical scheme:

the utility model provides a filter dirt cup subassembly, includes dirt cup, sea paper, filter mantle and filter tube, the air outlet has been seted up to dirt cup upper end, dirt cup is offered dust absorption mouth in the lateral wall near upper end position, sea paper sets up in dirt cup along dirt cup bobbin axis, sea paper inside and air outlet intercommunication, the filter tube cover locates sea paper lateral wall just the filter tube lateral wall forms annular enclosure with dirt cup inner wall, the filter tube lateral wall is located to the filter mantle ring, a plurality of first filtration holes have been seted up to the filter mantle in the terminal surface towards the air outlet, a plurality of second filtration holes have been seted up to the filter tube in the lateral wall near filter mantle top.

By adopting the technical scheme, the air mixed with sundries enters the dust cup barrel to form the spiral air duct surrounding the filter pipe, and the sundries are difficult to directly contact with the HEPA when moving along the air duct. Coarse sundries are gathered to the edge position of one end of the dust cup barrel far away from the dust collection opening under the action of centrifugal force and gravity in the surrounding movement process, the sundries are required to be filtered by the filter cover and the filter pipe in sequence when being close to the air outlet under the action of wind pressure, and the sundries with larger mass are more difficult to move under the action of wind force, and part of the fine sundries are required to be filtered by the filter pipe to reach the HEPA. Therefore, the air mixed with sundries can be subjected to preliminary filtration, the attachment of sundries on the outer surface of the sea kerchief can be reduced compared with the original filtration mode of directly passing through the sea kerchief, the service time of the sea kerchief is prolonged, and the filtration performance of the dust cup assembly in continuous operation is better maintained.

Optionally, the dust cup tube is connected and communicated with a guide tube at a position of the outer side wall close to the dust collection opening, and the axis of the guide tube is arranged along the tangential direction of the outer side wall of the dust cup tube.

Through adopting above-mentioned technical scheme, the tangential direction of air direction dirt cup section of thick bamboo that the stand pipe can be with getting into dirt cup section of thick bamboo makes the debris that mixes in the air directly follow spiral direction and remove, reducible along the radial direct air on the filter cylinder wall of blowing to the filter cylinder wall of dirt cup section of thick bamboo, reduce the debris that is close to on the filter cylinder wall of dust absorption mouth attached, make more debris filter again after centrifuging, the extension cartridge filter and the use time effect of hepa keep filtering the filtration dirt cup subassembly in continuous operation better.

Optionally, the wall of the dust cup barrel, which is close to the air outlet, is defined as an air guide wall, and the air guide wall extends to the lower part of the dust collection opening around the air outlet by taking the position, which is close to the upper part of the dust collection opening, as a starting position.

Through adopting above-mentioned technical scheme, the wind-guiding wall can be with the mixed air direction that gets into dirt cup section of thick bamboo around the spiral direction of straining a section of thick bamboo and remove towards keeping away from wind-guiding wall one end, makes debris more receive centrifugal force and gravity effect and gather, need through secondary filtration in order to reach the sea Pa position department, can guarantee the filtration performance of filtering dirt cup subassembly in continuous operation better from this.

Optionally, one end of the guide tube far away from the dust cup tube is connected with a control piece, the control piece comprises a dust collection tube connected and communicated with the guide tube, a connecting block is arranged on the inner side wall of the dust collection tube close to the guide tube, and a baffle is hinged to the side wall of the connecting block facing the dust collection opening;

when the dust collection pipe is inclined towards the position lower than the guide pipe at the end far away from the guide pipe, the baffle rotates to the position of closing the guide pipe.

Through adopting above-mentioned technical scheme, in dust absorption in-process, when user's suspension dust absorption and dust absorption pipe keep away from the downward sloping of stand pipe one end, the baffle can seal the stand pipe to reduce the debris of roll-off in the stand pipe, reduce debris and filter repeatedly and so that the HEPA blocks up the possibility that accelerates, can keep the filtration performance of dirt cup subassembly in continuous operation from this better.

Optionally, dust absorption pipe is close to the guide tube position fixedly connected with connecting seat in the lateral wall, the connecting seat is provided with first buckle in the inside wall, the dirt cup section of thick bamboo is offered in the lateral wall and is close to the first bayonet socket that the wind-guiding wall top position was gone into to first buckle card, connecting seat and dirt cup section of thick bamboo joint.

Through adopting above-mentioned technical scheme, can conveniently unpick out connecting seat and dust absorption pipe through first buckle, can unpick out and clear up the maintenance when the baffle is difficult to normal rotation in the use by debris influences such as hair to reduce the baffle and block or the influence that the dust absorption pipe blockked up, can keep the filtration performance of dirt cup subassembly in continuous operation better from this.

Optionally, the lateral wall of dirt cup section of thick bamboo includes section of thick bamboo wall and lower section of thick bamboo wall, go up section of thick bamboo wall and lower section of thick bamboo wall and connect and communicate, the cross section bore of going up section of thick bamboo wall is less than lower section of thick bamboo wall, the dust absorption mouth with first bayonet socket is seted up and is gone up the section of thick bamboo wall, the air guide wall is located dirt cup section of thick bamboo and is close to a section of thick bamboo wall one end, the filter mantle is located the filter tube lateral wall and is close to a section of thick bamboo wall and lower section of thick bamboo wall hookup location department.

Through adopting above-mentioned technical scheme, debris get into the back through the dust absorption mouth and receive centrifugal force and gravity effect gathering under in the section of thick bamboo wall, because the cross section bore of last section of thick bamboo wall is less than down the section of thick bamboo wall, during debris receive wind pressure to upwards the section of thick bamboo wall remove, the debris that the quality is great is difficult to remove in the section of thick bamboo wall because of gathering in the edge receives the bore restriction, the debris that the quality is less need filter through the filter housing when upwards the section of thick bamboo wall removes because of gathering in being close to the filter tube position, from this with great debris filtration restriction in down the section of thick bamboo wall, reduce the debris particle diameter that enters into the filter tube, keep the filtration performance of dirt cup subassembly in continuous operation better.

Optionally, the dust cup tube comprises a bottom cover, the bottom cover is used for closing one end of the lower tube wall far away from the upper tube wall, the bottom cover is provided with a second buckle at the outer side wall, the lower tube wall is provided with a second clamping groove for the second buckle to clamp in at the outer side wall, and the bottom cover is hinged with the lower tube wall at one side of the outer side wall far away from the second buckle.

Through adopting above-mentioned technical scheme, the bottom can be opened alone in order to clear up the debris of filtering in the dirt cup section of thick bamboo, and the person of facilitating the use is poured out too much debris and is kept the dirt cup section of thick bamboo intraductal wind channel unobstructed in order to continue to clean when cleaning for a long time, can reduce debris and receive the possibility that wind pressure adheres to the filter tube wall when the section of thick bamboo wall gathers too much down, and is more convenient with the mode of pouring debris with the sea kerchief that needs originally, keeps the filtering quality of dirt cup subassembly in continuous operation better from this.

Optionally, the dust cup barrel further comprises an air outlet pipe, the air outlet pipe is connected to the position, close to the air outlet, of the end face of the air guide wall, and is communicated with the air outlet, a limiting ring is arranged on the air outlet pipe, close to the upper position of the filter pipe, of the inner side wall, a third clamping groove is formed in the position, close to the limiting ring, of the outer side wall, of the filter pipe, and a third buckle used for sliding and clamping in the third clamping groove is arranged on the inner side wall, corresponding to the third clamping groove;

the filter dust cup assembly further comprises a support, the support penetrates through and is abutted to the inner side of the HEPA, a limiting groove for inserting the limiting groove is formed in the end, close to the air outlet, of the inner side wall of the filter pipe, and the limiting groove is formed in the end, close to the air outlet, of the side wall of the filter pipe.

Through adopting above-mentioned technical scheme, in filter tube, sappan and the support accessible rotation was torn out the dirt cup section of thick bamboo, sappan and support can follow filter tube one end and take out, can facilitate the use person take out and clear up filter tube and sappan, reduce the possibility that directly exert a force the sappan and damage sappan surface structure at the dismouting in-process, from this can guarantee the filtration performance of sappan better.

Optionally, the stop collar is embedded in the terminal surface that is close to the filter tube and is equipped with first sealing washer, the bottom is embedded in the one end that is close to the filter tube and is equipped with the second sealing washer, filter tube both ends butt respectively in first sealing washer and second sealing washer, the support is close to tuber pipe one end butt in first sealing washer.

Through adopting above-mentioned technical scheme, the debris that receives wind pressure to enter into the HEPA position from filter tube both ends reducible first sealing washer and second sealing washer, reduce the debris of HEPA direct filtration, keep the filtering quality of dirt cup subassembly in continuous operation better.

Optionally, the filter tube is provided with a plurality of wind-guiding strips along the axial below the filter mantle in the lateral wall, and a plurality of wind-guiding strips are evenly spaced along the filter tube circumference.

Through adopting above-mentioned technical scheme, the wind direction that the wind-guiding strip can be close to the filter tube wall is led along filter tube axial position, can block simultaneously and be close to the annular wind flow of filter tube wall, makes air drive debris to remove to first filtration pore, makes debris need through double-deck filtration in order to reach the HEPA position, reduces the debris of HEPA direct filtration, can keep the filtration performance of dirt cup subassembly in continuous operation better.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the air of mixed debris forms the spiral wind channel that encircles the filter tube through stand pipe and wind-guiding wall direction, coarser debris receives centrifugal force and gravity effect in the round removal in-process gathers in the lower section of thick bamboo wall and is close to bottom plate border position department, debris receives wind pressure to be close to the air outlet and need filter through filter mantle and filter tube in proper order, and the debris that the quality is bigger is more difficult to receive wind-force to remove, can carry out preliminary filtration with the air of mixed debris from this, can reduce the debris adhesion of the sea Pair surface for the filtration mode through the sea Pair originally directly, extension sea Pair's live time, keep the filtration performance of filtering dirt cup subassembly in continuous operation better.

2. When the user pauses dust absorption and dust absorption pipe keeps away from guide tube one end downward sloping, the baffle can seal the guide tube, reduce the debris that rolls out from the guide tube, reduce debris and filter repeatedly so that the HEPA jam accelerates the possibility, the cross section bore of upper cylinder wall is less than down the section of thick bamboo wall and can filter great debris and restrict down in the section of thick bamboo wall, first sealing washer and second sealing washer reducible from filter tube both ends receive wind pressure to enter into the debris in HEPA position, the wind direction that the wind guide strip can be close to the filter tube wall is led along filter tube axial position, the bottom can be opened alone and is conveniently kept the interior wind channel of dirt cup section of thick bamboo unobstructed in order to continue to clean, can keep the filtration performance of filtering dirt cup subassembly in continuous operation better.

3. The connecting seat and the dust collection pipe can be conveniently disassembled for cleaning and maintenance, the filter pipe, the HEPA and the bracket can be rotationally disassembled from the dust cup barrel, the HEPA and the bracket can be taken out from one end of the filter pipe, the possibility of directly applying force to the HEPA to damage the surface structure of the HEPA is reduced, and the use of the dust cup assembly is better ensured.

Drawings

FIG. 1 is an overall schematic view of a filter dirt cup assembly in an embodiment of the present application.

FIG. 2 is a partial cross-sectional view of a filter dirt cup assembly in an embodiment of the present application.

Fig. 3 is an exploded view of a dust suction pipe and surrounding parts of the dust suction pipe in the embodiment of the present application.

FIG. 4 is an exploded schematic view of a filter tube and components surrounding the filter tube in an embodiment of the present application.

FIG. 5 is an exploded view of a dirt cup and guide tube in an embodiment of the present application.

Reference numerals illustrate: 1. a dust cup tube; 11. an air guide wall; 111. an air outlet; 12. an upper cylinder wall; 121. a dust collection port; 122. a first bayonet; 13. a lower cylinder wall; 131. a second clamping groove; 14. a bottom cover; 141. a second buckle; 142. a second seal ring; 15. an air outlet pipe; 151. a limiting ring; 152. a third buckle; 153. a first seal ring; 2. a HEPA; 3. a filter cover; 31. a first filter aperture; 4. a filter tube; 41. a second filter aperture; 42. a third clamping groove; 43. a limit groove; 5. a guide tube; 6. a control member; 61. a dust collection pipe; 62. a connecting block; 63. a baffle; 7. a connecting seat; 71. a first buckle; 8. a bracket; 81. a limit bar; 9. and an air guiding strip.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

The embodiment of the application discloses a filter dirt cup subassembly. Referring to fig. 1, 2 and 3, the filter comprises a dust cup 1, a HEPA 2, a filter cover 3 and a filter tube 4. The cylinder wall defining the upper end of the dust cup cylinder 1 is an air guide wall 11, an air outlet 111 is formed in the air guide wall 11, the side wall of the dust cup cylinder 1 comprises an upper cylinder wall 12 and a lower cylinder wall 13, and a dust collection opening 121 is formed in the upper cylinder wall 12 of the dust cup cylinder 1. The air guide wall 11 extends to the lower side of the dust collection opening 121 around the air outlet 111 with the position close to the upper side of the dust collection opening 121 as the initial position.

Preferably, the direction of extension of the air guiding wall 11 is a spiral direction around the axis of the dirt cup drum 1, such that the wind entering the dirt cup drum 1 moves in the direction of extension of the air guiding wall 11 so as to form a wind whirl in the dirt cup drum 1.

Referring to fig. 2 and 3, the HEPA 2 is disposed in the dust cup 1 along the axis of the dust cup 1, and the inside of the HEPA 2 communicates with the air outlet 111. The filter tube 4 is sleeved on the side wall of the HEPA 2, an annular closed space is formed between the outer side wall of the filter tube 4 and the inner wall of the dust cup 1, and the filter cover 3 is annularly arranged on the side wall of the filter tube 4. The end face of the filter cover 3 facing the air outlet 111 is provided with a plurality of first filter holes 31, and the filter tube 4 is provided with a plurality of second filter holes 41 on the upper side wall of the filter tube near the filter cover 3.

Preferably, both filter housing 3 and filter tube 4 are made of stainless steel or other hard and corrosion resistant materials to facilitate cleaning of the surfaces of filter housing 3 and filter tube 4 by the user after filtration. The first filter holes 31 and the second filter holes 41 are each arranged in a plurality and uniformly spaced manner.

Referring to fig. 4, the dust cup 1 is connected to and communicated with a guide tube 5 at a position of the outer sidewall near the dust suction port 121, the axis of the guide tube 5 is arranged along the tangential direction of the outer sidewall of the dust cup 1, the guide tube 5 can guide the air entering the guide tube 5 to the inner wall of the dust cup 1, so that the air directly contacting the filter tube 4 along the radial direction of the dust cup 1 is reduced, and the air is more convenient to form wind whirl. Wherein, the guide pipe 5 is integrally formed with the dust cup barrel 1 during manufacture, so as to reduce the possibility of direction deviation in the splicing process and better ensure the guiding effect.

Referring to fig. 4, a control member 6 is connected to one end of the guide tube 5 far from the dust cup 1, the control member 6 includes a dust suction tube 61 connected to and communicating with the guide tube 5, a connection block 62 is provided on the inner side wall of the dust suction tube 61 near the guide tube 5, and a baffle 63 is hinged to the connection block 62 on the side wall facing the dust suction port 121. When the suction pipe 61 is inclined at an end away from the guide pipe 5 to a position lower than the guide pipe 5, the shutter 63 is rotated to a position closing the guide pipe 5.

Wherein, because the baffle 63 is hinged to the side wall of the connecting block 62 facing the dust collection opening 121, the baffle 63 is limited by the hinge when rotating to the side far away from the dust collection opening 121 and is positioned at the position of the closed guide pipe 5. The baffle 63 is rotated and opened by the air flow when the suction is started, and the baffle 63 can close the guide pipe 5 when the dust cup 1 is in use, so that the sundries leaked from the guide pipe 5 when the dust cup 1 is swayed can be reduced.

The dust collection pipe 61 is fixedly connected with a connecting seat 7 at a position, close to the guide pipe 5, of the outer side wall, a first clamping buckle 71 is arranged on the inner side wall of the connecting seat 7, a first clamping opening 122 for clamping the first clamping buckle 71 is formed in the upper cylinder wall 12 of the dust cup cylinder 1, and the connecting seat 7 is clamped with the dust cup cylinder 1.

Referring to fig. 2 and 5, the cross-sectional diameter of the upper cylinder wall 12 is smaller than that of the lower cylinder wall 13, the air guide wall 11 is positioned at one end of the dust cup cylinder 1 close to the upper cylinder wall 12, and the filter cover 3 is positioned at the position where the side wall of the filter tube 4 is close to the connection position of the upper cylinder wall 12 and the lower cylinder wall 13.

The connection part of the upper cylinder wall 12 and the lower cylinder wall 13 can limit larger sundries with larger centrifugal force at the lower cylinder wall 13, and the filter cover 3 can filter sundries with smaller centrifugal force, so that massive sundries can be limited below the dust cup 1, the influence of the filtered sundries on wind rotation in the dust cup 1 is reduced, and the possibility of blockage caused by the movement of the filtered sundries to the position close to the HEPA 2 under the action of wind rotation is reduced.

Referring to fig. 5, the dust cup 1 includes a bottom cover 14, the bottom cover 14 is used for closing one end of the lower cylinder wall 13 away from the upper cylinder wall 12, the bottom cover 14 is provided with a second buckle 141 on an outer side wall, the lower cylinder wall 13 is provided with a second clamping groove 131 for the second buckle 141 to clamp in on an outer side wall, and the bottom cover 14 is hinged with the lower cylinder wall 13 on one side of the outer side wall away from the second buckle 141.

Preferably, the bottom cover 14 is hinged away from the side of the suction tube 61, where the user typically grips during use is away from the suction tube 61, and where the hinged position is closer to the user's grip, reduces debris from sliding along the bottom cover 14 onto the user's clothing as it is being emptied.

Referring to fig. 3 and 5, the dust cup 1 further includes an air outlet pipe 15, the air outlet pipe 15 is connected to a position, close to the air outlet 111, of the end face of the air guide wall 11, and the air outlet pipe 15 is communicated with the air outlet 111, a limiting ring 151 is disposed above the inner side wall, close to the filter pipe 4, of the air outlet pipe 15, a third clamping groove 42 is formed in the position, close to the limiting ring 151, of the outer side wall of the filter pipe 4, and a third clamping buckle 152 for sliding and clamping into the third clamping groove 42 is disposed on the inner side wall, corresponding to the position of the third clamping groove 42, of the air outlet pipe 15.

The dust cup assembly further comprises a support 8, the support 8 is arranged in a penetrating mode and is abutted to the inner side of the HEPA 2, a limiting bar 81 is axially arranged at one end, close to the air outlet pipe 15, of the side wall of the support 8, and a limiting groove 43 for inserting the limiting bar 81 is formed in one end, close to the air outlet 111, of the inner side wall of the filter pipe 4.

Wherein, third draw-in groove 42 and third buckle 152 can be along filter tube 4 circumference correspondence setting up a plurality ofly, make filter tube 4 connect more stably, and spacing 81 can be along support 8 circumference setting up a plurality ofly, make support 8 and filter tube 4 connect more stably.

The filter tube 4 is provided with a plurality of air guide strips 9 on the outer side wall, which is close to the lower part of the filter cover 3, along the axial direction, and the air guide strips 9 are evenly arranged at intervals along the circumferential direction of the filter tube 4.

Referring to fig. 3 and 5, the limiting ring 151 is embedded with a first sealing ring 153 near the end face of the filter tube 4, the bottom cover 14 is embedded with a second sealing ring 142 near one end of the filter tube 4, two ends of the filter tube 4 are respectively abutted with the first sealing ring 153 and the second sealing ring 142, and one end of the bracket 8 near the air outlet tube 15 is abutted with the first sealing ring 153. Preferably, the first sealing ring 153 and the second sealing ring 142 can be made of rubber or other elastic materials, so that the sealing effect is better.

The implementation principle of the filtering dust cup assembly provided by the embodiment of the application is as follows:

during use, air mixed with impurities is guided by the guide pipe 5 and the air guide wall 11 to form spiral air whirling around the filter pipe 4, and coarse impurities are collected in the lower cylinder wall 13 near the edge of the bottom plate under the action of centrifugal force and gravity during the circulating movement.

When sundries are moved close to the air outlet 111 by wind pressure, as the cross-section caliber of the upper cylinder wall 12 is smaller than that of the lower cylinder wall 13, larger sundries are limited in the lower cylinder wall 13 by the cylinder wall, and smaller sundries need to be filtered through the double layers of the filter cover 3 and the filter pipe 4, so that the air mixed with sundries can be subjected to preliminary filtration. Compared with the original filtering mode directly through the HEPA 2, the attachment of sundries on the outer surface of the HEPA 2 can be reduced, the service time of the HEPA 2 is prolonged, and the filtering performance of the filtering dust cup assembly in continuous operation is better maintained.

When the cleaning is suspended, the baffle 63 can seal the downward inclined guide pipe 5 under the action of gravity, a user can pour out sundries in the dust cup barrel 1 by opening the bottom plate, and the filter pipe 4, the HEPA 2 and the like can be taken out for further cleaning by rotating the filter pipe 4.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. A filter dirt cup assembly, characterized in that: including dirt cup section of thick bamboo (1), sea paper (2), filter mantle (3) and filter tube (4), air outlet (111) have been seted up to dirt cup section of thick bamboo (1) upper end, dirt cup section of thick bamboo (1) has been seted up dust absorption mouth (121) in the lateral wall near upper end position, sea paper (2) set up in dirt cup section of thick bamboo (1) along dirt cup section of thick bamboo (1) axis, sea paper (2) inside and air outlet (111) intercommunication, filter tube (4) cover is located sea paper (2) lateral wall just filter tube (4) lateral wall and dirt cup section of thick bamboo (1) inner wall form annular enclosure, filter mantle (3) are encircleed and are located filter tube (4) lateral wall, a plurality of first filtration pore (31) have been seted up in the terminal surface towards air outlet (111) in filter mantle (3), a plurality of second filtration pore (41) have been seted up in the lateral wall near filter mantle (3) top position in filter tube (4).

2. A filter dirt cup assembly as set forth in claim 1 wherein: the dust cup tube (1) is connected and communicated with a guide tube (5) at the position of the outer side wall close to the dust collection opening (121), and the axis of the guide tube (5) is arranged along the tangential direction of the outer side wall of the dust cup tube (1).

3. A filter dirt cup assembly as set forth in claim 2 wherein: the cylinder wall, which is close to the air outlet (111), of the dust cup cylinder (1) is defined as an air guide wall (11), and the air guide wall (11) extends to the lower part of the dust suction opening (121) around the air outlet (111) by taking the position, which is close to the upper part of the dust suction opening (121), as a starting position.

4. A filter dirt cup assembly as set forth in claim 3 wherein: the dust collection device is characterized in that one end of the guide pipe (5) far away from the dust cup barrel (1) is connected with a control piece (6), the control piece (6) comprises a dust collection pipe (61) connected and communicated with the guide pipe (5), a connecting block (62) is arranged on the inner side wall of the dust collection pipe (61) close to the guide pipe (5), and a baffle (63) is hinged to the side wall of the connecting block (62) facing the dust collection opening (121);

when the end of the dust collection pipe (61) away from the guide pipe (5) is inclined to a position lower than the guide pipe (5), the baffle plate (63) rotates to a position for closing the guide pipe (5).

5. A filter dirt cup assembly as set forth in claim 4 wherein: the dust collection pipe (61) is fixedly connected with a connecting seat (7) at the position, close to the guide pipe (5), of the outer side wall, a first clamping buckle (71) is arranged on the inner side wall of the connecting seat (7), a first clamping opening (122) for clamping the first clamping buckle (71) is formed in the position, close to the upper portion of the air guide wall (11), of the outer side wall of the dust cup barrel (1), and the connecting seat (7) is connected with the dust cup barrel (1) in a clamping mode.

6. A filter dirt cup assembly as set forth in claim 5 wherein: the side wall of dirt cup section of thick bamboo (1) includes section of thick bamboo wall (12) and lower section of thick bamboo wall (13), the cross section bore of going up section of thick bamboo wall (12) is less than lower section of thick bamboo wall (13), dust absorption mouth (121) with first bayonet socket (122) are seted up and are gone up section of thick bamboo wall (12), wind-guiding wall (11) are located dirt cup section of thick bamboo (1) and are close to last section of thick bamboo wall (12) one end, filter mantle (3) are located filter tube (4) lateral wall and are close to section of thick bamboo wall (12) and lower section of thick bamboo wall (13) hookup location department.

7. A filter dirt cup assembly as set forth in claim 6 wherein: the dust cup barrel (1) comprises a bottom cover (14), wherein the bottom cover (14) is used for closing one end of the lower barrel wall (13) away from the upper barrel wall (12), the bottom cover (14) is provided with a second buckle (141) on the outer side wall, the lower barrel wall (13) is provided with a second clamping groove (131) for the second buckle (141) to clamp in on the outer side wall, and the bottom cover (14) is hinged with the lower barrel wall (13) on one side of the outer side wall away from the second buckle (141).

8. A filter dirt cup assembly as set forth in claim 7 wherein: the dust cup barrel (1) further comprises an air outlet pipe (15), the air outlet pipe (15) is connected to the position, close to the air outlet (111), of the end face of the air guide wall (11) and is communicated with the air outlet (111), a limiting ring (151) is arranged on the air outlet pipe (15) at the position, close to the upper side of the filter pipe (4), of the inner side wall, a third clamping groove (42) is formed in the position, close to the limiting ring (151), of the outer side wall of the filter pipe (4), and a third clamping buckle (152) for sliding and clamping into the third clamping groove (42) is arranged on the inner side wall, corresponding to the third clamping groove (42), of the air outlet pipe (15);

the dust cup filtering assembly further comprises a support (8), the support (8) penetrates through and is abutted to the inner side of the HEPA (2), a limit groove (43) for inserting the limit groove (81) is formed in one end, close to the air outlet (111), of the inner side wall of the filter tube (4), and the limit groove (81) is formed in one end, close to the air outlet (111), of the side wall of the support (8) in an axial direction.

9. A filter dirt cup assembly as set forth in claim 8 wherein: the utility model discloses a filter tube, including filter tube (4), bottom, support (8), spacing ring (151) are equipped with first sealing washer (153) in the terminal surface that is close to filter tube (4), bottom (14) are equipped with second sealing washer (142) in the terminal surface that is close to filter tube (4), filter tube (4) both ends butt respectively in first sealing washer (153) and second sealing washer (142), support (8) are close to air-out pipe (15) one end butt in first sealing washer (153).

10. A filter dirt cup assembly according to any one of claims 1 to 9 wherein: the filter tube (4) is provided with a plurality of air guide strips (9) on the outer side wall, which is close to the lower part of the filter cover (3), along the axial direction, and a plurality of air guide strips (9) are uniformly arranged at intervals along the circumferential direction of the filter tube (4).

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