CN111345730B

CN111345730B - Dust collector with convenient cotton fiber separation

Info

Publication number: CN111345730B
Application number: CN202010159656.3A
Authority: CN
Inventors: 王剑波; 陈挺
Original assignee: Ningbo Bai Rui Te Electric Appliance Co ltd
Current assignee: Ningbo Bai Rui Te Electric Appliance Co ltd
Priority date: 2020-03-10
Filing date: 2020-03-10
Publication date: 2021-06-01
Anticipated expiration: 2040-03-10
Also published as: CN111345730A

Abstract

The invention discloses a dust collector convenient for cotton fiber separation, which comprises a dust collector body internally provided with a motor and a dust cup detachably connected with the dust collector body, wherein a filter cover and a filter element are arranged in the dust cup, the filter cover comprises a first cylinder body provided with filter holes and a second cylinder body coaxially arranged below the first cylinder body, the second cylinder body is used for collecting dust, the diameter of the second cylinder body is smaller than that of the first cylinder body, an elastic ring is detachably arranged on the inner wall of the dust cup, the elastic ring comprises a retaining ring arranged on the periphery and at least 2 jacking ring blocks arranged on the inner periphery, and a deformation ring arranged between the top pressure ring block and the retaining ring, wherein the deformation ring drives the top pressure ring block to move towards the circle center, and when the top pressure ring blocks are mutually pressed, the diameter of a circle formed by the surrounding of the top pressure ring blocks is equal to the outer diameter of the first cylinder, after the filter cover is arranged in the dust cup, the fixed pressure ring block of the elastic ring is positioned at the upper part of the first cylinder body. Through above-mentioned structure, realize when taking out the filter mantle, can be to the automatic clearance of cotton fibre of adhering to it.

Description

Dust collector with convenient cotton fiber separation

Technical Field

The invention relates to the field of household appliances, in particular to a dust collector with convenient cotton wool separation.

Background

In the cyclone dust collector sold in the market at present, a cyclone filter is arranged in a dust cup, and the dust cup is detachably connected with a dust collector body. The structure of the dirt cup is mostly as disclosed in chinese patent with application number 201520138639.6, entitled filter part of a cyclone cleaner. The structure of the dust cup comprises a dust cup, a filter cover and a filter element, wherein the filter element is arranged in the filter cover in a penetrating way, and the filter cover is arranged in the dust cup in a penetrating way. The filter element is provided with a dust and air channel, the upper end of the dust and air channel is an air outlet, the lower end of the dust and air channel is a dust outlet, and the circumferential wall of the filter element is provided with a dust and air suction inlet which is tangentially arranged; the wall surface of the filter core is provided with filter holes, the lower part of the filter core is provided with a dust collecting cylinder, and the dust outlet is arranged in the dust collecting cylinder; after the dust cup is installed on the dust collector body, the motor in the dust collector body rotates at a high speed and then generates a great negative pressure on the air outlet of the filter element, the negative pressure acts on the dust air suction inlet, so that the inner cavity of the dust cup generates cyclone, substances such as cotton wool, hair and the like are screwed into the lower cavity of the dust cup to be collected, dust passes through the dust air suction inlet and then is screwed into the dust outlet, and then is collected in the dust collecting barrel. Through above-mentioned mode, realize the separation collection of cotton fibre and dust.

Although current cyclone dust catcher, the dirt cup can realize that the separation of cotton fibre and dust is collected, improve the filter effect of filter mantle, however, in the in-service use, because the dirt gas sunction inlet can produce continuous negative pressure suction, even because whirlwind effect, cotton fibre and hair can be by screw in dirt cup lower chamber, still have a small part to be upwards inhaled and adhere to the filtration pore position of filter mantle, can influence dust absorption effect on the one hand, another is convenient, when taking out dirt cup and filter mantle, because the hair cotton fibre is attached to the filter mantle outside, need peel off it in addition, the operation is more troublesome.

Disclosure of Invention

Accordingly, it is an object of the present invention to provide a vacuum cleaner that automatically separates lint from a filter sock when the filter sock is removed from a dirt cup.

In order to achieve the purpose, the method is realized by the following technical means: a dust collector with convenient cotton-wool separation comprises a dust collector body with a built-in motor and a dust cup detachably connected with the dust collector body, wherein a filter mantle and a filter element are arranged in the dust cup, the filter mantle comprises a first cylinder body with a filter hole and a second cylinder body coaxially arranged below the first cylinder body, the second cylinder body is used for collecting dust, the diameter of the second cylinder body is smaller than that of the first cylinder body, an elastic ring is detachably arranged on the inner wall of the dust cup, the elastic ring comprises a retaining ring at the periphery and at least 2 top pressure ring blocks at the inner periphery, and a deformation ring arranged between the top pressure ring block and the retaining ring, wherein the deformation ring drives the top pressure ring block to move towards the circle center, and when the top pressure ring blocks are mutually pressed, the diameter of a circle formed by the surrounding of the top pressure ring blocks is equal to the outer diameter of the first cylinder, after the filter cover is arranged in the dust cup, the fixed pressure ring block of the elastic ring is positioned at the upper part of the first cylinder body.

Through the scheme, the elastic ring is arranged at the upper part of the filter cover, so that when the dust collector works, the filter holes of the filter cover can realize normal functions and cannot be blocked by the elastic ring; meanwhile, the diameter of the inner ring of the elastic ring is the same as that of the first cylinder, and the outer ring of the elastic ring is clamped in the inner wall of the dust cup, so that cotton wool and dust brought up by the cyclone cannot be brought into the space of the dust cup at the upper part of the elastic ring, and the cotton wool, the dust and other substances only can be removed from the space below the dust cup; finally, when the filter cover needs to be taken out, due to the fact that the filter cover is taken away from the upper portion of the dust cup, cotton wool attached to the periphery of the first cylinder body of the filter cover is scraped away in a smooth mode when the filter cover is taken out, the filter cover which is taken out cannot be provided with the cotton wool, and the effect of automatic cleaning is achieved.

The method is further optimized as follows: the inner wall of the dust cup is provided with an annular groove, and the retaining ring is clamped in the annular groove.

Through above-mentioned scheme, through the cooperation of annular and retainer, realize the installation function of retainer.

The method is further optimized as follows: the retaining ring is an electromagnet, the jacking ring block is made of ferromagnetic materials, when the retaining ring is electrified, the jacking ring block moves towards the retaining ring and enables the inner ring of the elastic ring to be enlarged, and the electrification and the outage of the retaining ring are controlled by a control circuit.

The method is further optimized as follows: the control circuit is including setting up in the wire of dirt cup outer wall, and the one end of wire is provided with first contact, is provided with the second contact on the dust catcher body, and after dirt cup and dust catcher body installation, first contact and second contact, the wire still is provided with the third contact that spreads into the dirt cup annular into, and after setting up the retaining ring in the annular, retaining ring and third contact are provided with the control button that the control third contact got lose the electricity on the dust catcher body.

Through the scheme, after the control button is pressed down, the retaining ring is electrified and magnetic, and the attraction jacking ring moves towards the outer side, so that the inner ring is enlarged, and the filter cover is conveniently placed into the dust cup.

The method is further optimized as follows: the first barrel is provided with the baffle towards the lower extreme of second barrel, the outside diameter of baffle is towards the direction of keeping away from first barrel and is crescent.

Through above-mentioned scheme, the shape of baffle presents the skirt pendulum form, and when carrying out filtering operation, the cotton fibre by the downward screw in of whirlwind can be followed the baffle and slided to dirt cup bottom on the one hand, and on the other hand, when the cotton fibre of dirt cup bottom received first barrel filtration pore attraction simultaneously, can cover by the baffle, reduces by the probability of updraught.

The method is further optimized as follows: the downside of dirt cup is provided with the bowl cover, and one side of bowl cover is articulated with the dirt cup, is provided with buckle structure between the other end and the dirt cup, buckle structure is provided with the pressing plate including setting up the first buckle on the bowl cover at dirt cup lower extreme lateral wall, presses the middle part and the dirt cup pin joint of pressing plate, and one end is provided with the second buckle that colludes with first buckle cooperation towards the lower extreme, and one end up is for pressing the end, and presses down and be provided with the spring that orders about the second buckle and push down with first buckle lock between end and the dirt cup.

Through above-mentioned scheme, through buckle structure, when the dirt cup is opened to needs and materials such as take out cotton fibre, only need press the pressing plate for the second buckle upwarps, and first buckle will break away from the joint in the second buckle, and the bowl cover will overturn downwards and open the opening of dirt cup below.

The method is further optimized as follows: the bottom surface of the cup cover facing the inner cavity of the dust cup is provided with a hook block, and the direction of the hook block is opposite to the direction of the cyclone in the dust cup.

Through above-mentioned scheme, collude the setting of line piece, when carrying out cyclone and filtering, the cotton fibre is at first by the bottom of cup that downwards screw in dirt cup also be the bowl cover direction, and the cotton fibre will be colluded by the line piece of colluding to subsequent cotton fibre also can twine before by colluding on the cotton fibre that the line piece was colluded, form similar cotton candy's cotton fibre wholly, further reduction scattered indiscriminate cotton fibre by upwards breathing in the probability that blocks up the filtration pore.

The method is further optimized as follows: the bottom surface of the cup cover facing the inner cavity of the dust cup is provided with a sealing structure matched with the second cylinder, the sealing structure comprises an annular sealing rib arranged on the bottom surface of the cup cover, sealing cotton is arranged in the sealing rib, and the bottom end of the second cylinder is pressed on the sealing cotton after the cup cover is sealed and the dust cup is arranged in the filter cover.

Through above-mentioned scheme, through sealed muscle can be fine restriction sealed cotton, and can seal the bottom of second barrel through sealed cotton, prevent when carrying out cyclone and filter, as the second barrel that collection dirt was used leaks out and raises the dust, when taking out the filter mantle, simultaneously in the dust in the second barrel can be automatic fall into dirt cup bottom, realize the automatic clearance of filter mantle.

The method is further optimized as follows: the filter element comprises a third cylinder and a sealing plate, a tangential suction inlet is formed in the peripheral wall of the third cylinder, an air suction pipe is arranged inside the third cylinder, the pipe wall of the air suction pipe is opposite to the tangential suction inlet, a conical grid suction inlet is formed in the lower end of the air suction pipe, an air outlet communicated with the air suction pipe is formed in the sealing plate, and after the filter element and the filter cover are installed, the lower end of the third cylinder is in sealed butt joint with the second cylinder.

Through the above-mentioned scheme, after the negative pressure produces from the net sunction inlet, the annular space of annular effect on breathing pipe and third barrel, and the tangential sunction inlet is just right the pipe wall of breathing pipe, thereby when setting up a plurality of tangential sunction inlets, the negative pressure suction homogeneous phase of every tangential sunction inlet, and then tangential suction is also very even when the first barrel of filter mantle is acted on, the whirlwind appeal of production will be towards the bottom of cup of dirt cup, make dirt cup bottom cotton fibre collection ability strong, further reduce the production of scattered cotton fibre, reduce the probability that scattered cotton fibre is adsorbed to filter hole department simultaneously.

The method is further optimized as follows: the dust cup and the filter core are provided with a rotation limiting structure for limiting the filter core and the dust cup to rotate relatively, the rotation limiting structure comprises a rotation limiting block arranged at the upper port part of the dust cup, and a rotation limiting groove matched with the rotation limiting block is arranged on the peripheral wall of the sealing plate.

Compared with the prior art, the invention has the advantages that: the dirt cup is strong to the collection separation ability of material such as cotton fibre hair, and the filtration pore of filter mantle is difficult for blockking up by material such as cotton fibre, and simultaneously, when taking out the filter mantle, material such as the cotton fibre hair that adheres to on first barrel can be peeled off by automation, realizes the automatic clearance of filter mantle.

Drawings

FIG. 1 is an overall view of a vacuum cleaner according to an embodiment;

FIG. 2 is an axial view of the dirt cup assembly of the embodiment;

FIG. 3 is an axial view of the cleaner body of the embodiment;

FIG. 4 is a schematic view of the embodiment with the lid opened;

FIG. 5 is a perspective view of the interior of the dirt cup assembly of an embodiment;

FIG. 6 is a schematic view of the embodiment with the dirt cup and filter assembly separated;

FIG. 7 is a schematic illustration of an embodiment with the filter sock and filter element separated;

FIG. 8 is an internal perspective view of a filter element of an embodiment;

FIG. 9 is a schematic view of the embodiment with the dirt cup separated from the elastic ring;

FIG. 10 is an enlarged view of portion A of FIG. 9;

FIG. 11 is a schematic view of a change in tension loop state of the embodiment.

In the figure, 1, a cleaner body; 11. a suction butt joint; 12. filtering cotton; 13. clamping the rotary block; 14. a second contact; 15. a control button; 2. a dust cup; 21. clamping a rotary groove; 22. a pipe joint; 23. a cup cover; 231. a first buckle; 232. a thread hooking block; 24. a pressing plate; 241. a second buckle; 242. a pressing end; 25. a rotation limiting block; 26. a ring groove; 3. a wire housing; 31. a first contact; 32. a second contact; 41. a third cylinder; 411. a tangential suction inlet; 4111. a tangential guide vane; 42. a sealing plate; 421. a rotation limiting groove; 422. an air outlet; 423. connecting holes; 431. an air intake duct; 432. a grid suction inlet; 5. a first cylinder; 51. a filtration pore; 52. a second cylinder; 53. a baffle plate; 54. a butt joint port; 541. a connecting screw hole; 6. an elastic ring; 61. a retaining ring; 62. a deformation ring; 63. and the pressing ring block is pressed.

Detailed Description

The invention will be further described by means of specific embodiments, which are given by way of illustration only and are not intended to limit the scope of the invention.

Examples

A dust collector convenient for cotton fiber separation firstly refers to the attached figures 1-3, and comprises a dust collector body 1 and a dust cup 2 assembly, wherein the front part of the dust collector body 1 is provided with an air suction butt joint 11 for butt joint of the dust cup 2 assembly, a clamping rotary block 13 is arranged in a shell of the air suction butt joint 11 in an annular mode, the peripheral wall of the upper part of the dust cup 2 is provided with a clamping rotary groove 21, and the dust cup 2 assembly is installed through the clamping rotary block 13 and the clamping rotary groove 21. Meanwhile, the lower side of the air suction butt joint 11 is provided with filter cotton 12 for air suction and filtration of the dust cup 2 assembly. The second contact 32 is arranged at the lower side of the suction butt joint 11 of the cup body of the dust collector, the dust cup 2 is provided with the wire shell 3, a plurality of wires are arranged in the wire shell, one end of the wire is provided with the first contact 31, and after the dust cup 2 is assembled on the dust collector body 1, the first contact 31 is contacted with the second contact 32, so that the effect that the wire in the wire shell 3 is communicated with the power supply assembly in the dust collector body 1 is realized. The dust cup 2 is provided with a pipe joint 22 for butting a dust suction pipe, and when the dust collector works, the pipe joint 22 generates negative pressure to enable the dust suction pipe to work for dust suction.

The dirt cup 2 assembly, see figures 4-11, includes a dirt cup 2, a filter sock and a filter insert, wherein the filter sock and filter insert are used in combination. The filter cover comprises a first cylinder 5 provided with a filter hole 51 and a second cylinder 52 used for collecting dust, the second cylinder 52 is positioned below the first cylinder 5 and coaxially arranged, the diameter of the second cylinder is smaller than that of the first cylinder 5, a baffle 53 is arranged on the lower side of the first cylinder 5, and a butt joint 54 with a horn-shaped opening is arranged above the first cylinder 5. The filter element comprises a third cylinder 41 and a sealing plate 42, wherein a tangential suction port 411 is arranged on the peripheral wall of the third cylinder 41, and a tangential deflector 4111 is arranged on the edge of the tangential suction port 411; an air suction pipe 431 is arranged in the third cylinder 41, an air outlet 422 is arranged at the upper part of the air suction pipe 431, and the air outlet 422 is arranged on the sealing plate 42. Below the suction pipe 431 is a tapered mesh suction inlet 432, when the vacuum cleaner is in operation, the mesh suction inlet 432 generates negative pressure, air will enter from the tangential suction inlet 411, and the air after entering will generate cyclone due to the wind direction of the tangential suction inlet 411. Wherein, a connecting hole 423 is arranged on the sealing cover, a connecting screw hole 541 is arranged at the butt joint 54 of the filter cover, and the filter cover and the filter hole 51 are connected and fixed by screws.

The lower extreme of dirt cup 2 is provided with bowl cover 23, and the one end of bowl cover 23 is articulated with dirt cup 2, and the other end is provided with the lock joint structure with dirt cup 2, and the lock joint structure is provided with press plate 24 including setting up first buckle 231 on bowl cover 23 at the lower extreme of dirt cup 2, presses the middle part and the pivot joint of dirt cup 2 of press plate 24, and the lower extreme is second buckle 241, and the upper end is for pressing end 242, is provided with between press end 242 and dirt cup 2 and orders about the decurrent spring of second buckle 241. Therefore, when the pressing end 242 is not pressed, the second buckle 241 fastens the first buckle 231 to realize the sealing cover of the cup cover 23 at the lower end of the dust cup 2, when the cup cover 23 needs to be opened, the pressing end 242 is pressed, and the second buckle 241 is separated from the first buckle 231 to realize the opening of the cup cover 23.

The inner ground of the cup cover 23 is provided with a sealing rib, the sealing rib is internally provided with sealing cotton, and after the dust cup 2 is placed in the filter cover, the bottom of the second cylinder 52 is pressed against the sealing cotton to seal the bottom of the second cylinder 52. Meanwhile, a rotation limiting structure is arranged between the dust cup 2 and the sealing plate 42 of the filter element, the rotation limiting structure comprises a rotation limiting block 25 arranged at the upper port part of the dust cup 2, and a rotation limiting groove 421 matched with the rotation limiting block 25 is arranged on the peripheral wall of the sealing plate 42. Thus, after the assembly of the dirt cup 2 is mounted on the suction docking head 11, the sealing plate 42 will press against the filter cloth 12 and the bottom of the second cylinder 52 will press against the sealing cloth, thereby securing the internal filter assembly and the dirt cup 2.

The dust cup 2 is also provided with an elastic ring 6, the elastic ring 6 is arranged at the upper part of the pipe joint 22 and comprises a retaining ring at the outer ring and four top pressure ring blocks 63 at the inner ring, a shape changing ring 62 is arranged between the retaining ring and the top pressure ring blocks 63, and the shape changing ring 62 drives the top pressure ring blocks 63 to close towards the inner ring and enables the top pressure ring blocks 63 to form a complete inner ring. The material of the deformation ring 62 may be rubber or silicone. When the top pressure ring block 63 forms an inner ring, the diameter of the inner ring is the same as the outer diameter of the first cylinder 5, and after the filter cover is placed in the dust cup 2, the elastic ring 6 is located at the upper position of the first cylinder 5, and the normal function of the filter hole 51 is not hindered. Meanwhile, the elastic ring 6 can isolate the upper space of the dust cup 2, and substances such as cotton wool dust and the like cannot enter the space of the dust cup 2 on the upper part of the elastic ring 6. After the dust absorption work is accomplished to the dust catcher, when taking out the filter mantle, at the in-process of upwards extracting the filter mantle, attached to the cotton fibre on first barrel 5, the dust will be scraped off, when elasticity ring 6 runs into baffle 53, roof pressure ring piece 63 can be by the extrusion make the inner circle of elasticity ring 6 expand to realize taking out of filter mantle, and realize peeling off the cotton fibre, realize the automatic clearance of filter mantle.

Further, in order to conveniently place the filter cover in the dust cup 2, the retaining ring 61 is made of ferromagnetic materials such as ferronickel and the like, the top pressing ring block 63 of the electromagnet is selected, the third contact 14 communicated with a lead is arranged at the position of the annular groove 26, after the retaining ring 61 is placed in the annular groove 26, the third contact 14 is in contact with the retaining ring 61, the control button 15 is arranged at the position of the dust collector body 1, and after the control button 15 is pressed, the top pressing ring block 63 is attracted by the retaining ring 61, so that the inner ring of the elastic ring 6 is expanded, and the filter cover is conveniently placed in. When the filter cover is put in, the control button 15 is pressed again, so that the third contact 14 is de-energized, and the top pressure ring block 63 is enclosed into a complete inner ring by the action of the deformation ring 62 again.

In order to further reduce the blocking of the filter holes 51 on the first cylinder 5 by cotton wool, the filter holes 51 are not arranged on the part of the first cylinder 5 facing the pipe joint 22, and a hook block 232 is arranged at the position of the inner bottom surface of the cup cover 23, and the hook body of the hook block 232 faces in the opposite direction to the cyclone. When carrying out cyclone, the cotton fibre is at first by the cup bottom that is also the bowl cover 23 direction of downwards screw in dirt cup 2, and the cotton fibre will be caught on by colluding line piece 232 to subsequent cotton fibre also can twine on the cotton fibre that is caught on by colluding line piece 232 before, forms the cotton fibre of similar cotton candy wholly, further reduction scattered indiscriminate cotton fibre by upwards breathing in the probability of blockking up filtration pore 51.

When the dust collector works, the filter element generates cyclone suction, substances such as cotton wool dust enter the dust cup 2 through the dust collection pipe after entering the pipe joint 22 of the dust cup 2, the most of the rotating cotton wool dust enters the lower part of the dust cup 2, a small part of dust enters the filter element through the filter hole 51, then the dust entering the filter element also enters the second barrel 52 under the cyclone effect to be collected, the air is discharged from the air outlet 422, enters the dust collector body 1 through the filter cotton 12 and is discharged by the dust collector body 1. After finishing dust absorption work, at first take off dirt cup 2 subassembly, say that the filter mantle takes out from dirt cup 2 afterwards, at the in-process of taking out, the dust in the second barrel 52 will fall into in the dirt cup 2 automatically, and the cotton fibre that adheres to on the first barrel 5 is then peeled off by elasticity ring 6, will also get into dirt cup 2 automatically, realizes the automatic clearance of filter mantle. And finally, opening the cup cover 23, taking out cotton wool attached to the hook block 232 of the cup cover 23, and pouring dust to clean the dust cup 2.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims

1. A dust collector convenient for cotton-wool separation comprises a dust collector body (1) internally provided with a motor and a dust cup (2) detachably connected with the dust collector body (1), wherein a filter cover and a filter element are arranged in the dust cup (2), the filter cover comprises a first cylinder (5) provided with a filter hole (51) and a second cylinder (52) coaxially arranged below the first cylinder (5), the second cylinder (52) is used for collecting dust, the diameter of the second cylinder is smaller than that of the first cylinder (5), the dust collector is characterized in that an elastic ring (6) is detachably arranged on the inner wall of the dust cup (2), the elastic ring (6) comprises a peripheral retaining ring (61) and at least 2 jacking ring blocks (63) arranged on the inner periphery, and a deformation ring (62) arranged between the jacking ring blocks (63) and the retaining ring (61), the deformation ring (62) drives the jacking ring blocks (63) to move towards the circle center and tightly press the jacking ring blocks (63) mutually, the diameter of a circle formed by enclosing the top pressure ring block (63) is equal to the outer diameter of the first cylinder body (5), and after the filter cover is installed in the dust cup (2), the top pressure ring block (63) of the elastic ring (6) is positioned at the upper part of the first cylinder body (5).

2. The dust collector for conveniently separating cotton wool according to claim 1, wherein the inner wall of the dust cup (2) is provided with a ring groove (26), and the retaining ring (61) is clamped in the ring groove (26).

3. The vacuum cleaner for conveniently separating cotton wool according to claim 2, wherein the retaining ring (61) is an electromagnet, the pressing ring block (63) is made of ferromagnetic material, when the retaining ring (61) is electrified, the pressing ring block (63) moves towards the retaining ring (61) and enlarges the inner ring of the elastic ring (6), and the electrification and the nonelectricity of the retaining ring (61) are controlled by a control circuit.

4. The vacuum cleaner capable of conveniently separating cotton wool according to claim 3, wherein the control circuit comprises a wire arranged on the outer wall of the dust cup (2), one end of the wire is provided with a first contact (31), the vacuum cleaner body (1) is provided with a second contact (32), after the dust cup (2) is installed on the vacuum cleaner body (1), the first contact (31) is contacted with the second contact (32), the wire is further provided with a third contact (14) penetrating through a ring groove (26) of the dust cup (2), after a retaining ring (61) is arranged in the ring groove (26), the retaining ring (61) is contacted with the third contact (14), and the vacuum cleaner body (1) is provided with a control button (15) for controlling the third contact (14) to be powered off.

5. The vacuum cleaner for conveniently separating cotton wool according to claim 4, wherein the first cylinder (5) is provided with a baffle (53) towards the lower end of the second cylinder (52), and the outer diameter of the baffle (53) is gradually increased towards the direction far away from the first cylinder (5).

6. The dust collector convenient for separating cotton wool from cotton wool as claimed in claim 1, wherein a cup cover (23) is arranged on the lower side of the dust cup (2), one side of the cup cover (23) is hinged to the dust cup (2), a buckle structure is arranged between the other end of the cup cover and the dust cup (2), the buckle structure comprises a first buckle (231) arranged on the cup cover (23), a pressing plate (24) is arranged on the side wall of the lower end of the dust cup (2), the middle part of the pressing plate (24) is pivoted with the dust cup (2), a second buckle (241) matched and hooked with the first buckle (231) is arranged at one end facing downwards, a pressing end (242) is arranged at one end facing upwards, and a spring for driving the second buckle (241) to press downwards to be buckled with the first buckle (231) is arranged between the pressing end (242) and the dust cup (2).

7. The dust collector convenient for separating cotton wool according to claim 6, characterized in that the bottom surface of the cup cover (23) facing the inner cavity of the dust cup (2) is provided with a thread hooking block (232), the thread hooking block (232) is provided with a hook body, and the direction of the hook body is opposite to the cyclone direction in the dust cup (2).

8. The dust collector convenient for separating cotton fibers according to claim 6, wherein the bottom surface of the cup cover (23) facing the inner cavity of the dust cup (2) is provided with a sealing structure matched with the second cylinder (52), the sealing structure comprises an annular sealing rib arranged on the bottom surface of the cup cover (23), sealing cotton is arranged in the sealing rib, and after the cup cover (23) is sealed and the dust cup (2) is arranged in the filter cover, the bottom end of the second cylinder (52) is pressed against the sealing cotton.

9. The vacuum cleaner for conveniently separating cotton wool according to claim 1, wherein the filter element comprises a third cylinder (41) and a sealing plate (42), a tangential suction port (411) is arranged on the peripheral wall of the third cylinder (41), a suction pipe (431) is arranged inside the third cylinder (41), the pipe wall of the suction pipe (431) is opposite to the tangential suction port (411), a conical grid suction port (432) is arranged at the lower end of the suction pipe (431), the sealing plate (42) is provided with an air outlet (422) communicated with the suction pipe (431), and after the filter element and the filter cover are installed, the lower end of the third cylinder (41) is in sealed butt joint with the second cylinder (52).

10. The vacuum cleaner for conveniently separating cotton wool according to claim 9, wherein a rotation limiting structure for limiting the filter core and the dust cup (2) to rotate relatively is arranged between the dust cup (2) and the filter core, the rotation limiting structure comprises a rotation limiting block (25) arranged at the upper end opening of the dust cup (2), and a rotation limiting groove (421) matched with the rotation limiting block (25) is arranged on the peripheral wall of the sealing plate (42).