CN219250028U

CN219250028U - Dust collector

Info

Publication number: CN219250028U
Application number: CN202223106746.XU
Authority: CN
Inventors: 何国坚; 翟莉立; 陈俊
Original assignee: Xiaomiao Pet Products Technology Development Zhongshan Co ltd; Zhongshan City Electrical Appliance Co ltd; Zhongshan Feipote Electrical Appliances Co ltd
Current assignee: Xiaomiao Pet Products Technology Development Zhongshan Co ltd; Zhongshan City Electrical Appliance Co ltd; Zhongshan Feipote Electrical Appliances Co ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-06-27
Anticipated expiration: 2032-11-22

Abstract

The utility model discloses a dust collector, which comprises a host, a mounting cover, a filtering device and at least one group of clamping structures, wherein a suction device is arranged in the host; the filtering device covers the first air inlet; a first accommodating groove for accommodating the filter device is formed in one side surface of the mounting cover, which is close to the first air inlet; each group of clamping structures comprises a clamping groove and a clamping part which can be inserted into the clamping groove, one of the clamping groove and the clamping part is arranged on the peripheral wall of the mounting groove, and the other clamping groove and the clamping part are arranged on the periphery of the mounting cover; when the installation cover is embedded in the installation groove, the filtering device is embedded in the first accommodating groove and is abutted against the installation cover, and the installation cover rotates relative to the host machine to enable the clamping part to be inserted into the clamping groove or withdraw from the clamping groove. The dust collector provided by the utility model has the advantage that the filter device is more convenient to replace.

Description

Dust collector

Technical Field

The utility model relates to the technical field of dust collection equipment, in particular to a dust collector.

Background

The cleaner can be used for home dust removal and hair suction when shaving pets. The existing dust collector generally comprises a host and a collecting box detachably arranged on the host, an exhaust fan is arranged in the host, an exhaust fan air inlet communicated with the exhaust fan is arranged on the host, a filtering device is arranged between the collecting box and the air inlet, the inside of the collecting box is communicated with a suction pipe of the dust collector and the filtering device, the working principle of the dust collector is that the exhaust fan pumps away air in the collecting box, so that dust and hair and other garbage outside enter the collecting box along with the air through the suction pipe, the filtering device can filter the air, the dust is prevented from entering the exhaust fan, and the dust is prevented from affecting the operation of the exhaust fan. After long-term use, the filter device must be replaced to avoid excessive dust accumulation by the filter device, which can lead to dust being sucked into the exhaust fan. The filter device is pressed at the air inlet of the exhaust fan by the aid of the installation cover which is in threaded connection with the main machine, specifically, the main machine is provided with an annular installation wall, the air inlet of the exhaust fan is located on the inner side of the installation wall, the filter device is located on the inner side of the installation wall, the installation cover is provided with external threads, the inner side surface of the annular installation wall is provided with internal threads, the installation cover is in threaded connection with the internal threads in a mutually matched mode, the filter device is pressed at the air inlet, a vent hole for air in the collecting box to pass through is formed in the installation cover, when the filter device is detached, the installation cover needs to be rotated for a plurality of circles, the filter device needs to be detached, and then the filter device needs to be rotated for a plurality of circles of installation covers when the filter device is installed, so that the filter device is not convenient to replace by the existing dust collector, and needs to be further perfected.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides the dust collector, which can enable the filter device to be replaced more conveniently.

The dust collector comprises a host, a mounting cover, a filtering device and at least one group of clamping structures, wherein a suction device is arranged in the host, a mounting groove and a first air inlet communicated with the suction device are formed in the outer wall of the host, and the first air inlet is positioned at the inner side of the peripheral wall of the mounting groove; the filtering device covers the first air inlet; a first accommodating groove for accommodating the filter device is formed in one side surface, close to the first air inlet, of the mounting cover; each group of clamping structures comprises a clamping groove and a clamping part which can be inserted into the clamping groove, one of the clamping groove and the clamping part is arranged on the peripheral wall of the mounting groove, and the other clamping groove and the clamping part are arranged on the periphery of the mounting cover; when the installation cover is embedded in the installation groove, the filter device is embedded in the first accommodating groove and is abutted to the installation cover, and the installation cover rotates relative to the host machine to enable the clamping part to be inserted into the clamping groove or withdraw from the clamping groove.

The dust collector provided by the embodiment of the utility model has at least the following beneficial effects: when the filter device is installed, the filter device and the installation cover are installed in the installation groove, then the installation cover is only required to be rotated, the clamping part on the installation cover is inserted into the clamping groove, at the moment, the clamping part is clamped with the side wall of the clamping groove to prevent the installation cover from being separated from the installation groove, the installation cover is abutted with the filter device to cover the filter device on the first air inlet, therefore, the installation of the filter device is completed, and when the filter device is disassembled, the installation cover and the filter device can be taken down only by rotating the installation cover, so that the clamping part is withdrawn from the clamping groove.

According to some embodiments of the utility model, the clamping structure is provided with more than two groups, wherein more than two clamping parts are uniformly arranged on the periphery of the mounting cover along the circumferential direction of the mounting cover, more than two clamping blocks are uniformly arranged on the circumferential wall of the mounting groove along the circumferential direction of the mounting groove, the clamping groove is positioned between the clamping blocks and the bottom wall of the mounting groove, and an avoidance opening through which the clamping blocks can pass is formed between two adjacent clamping parts.

According to some embodiments of the utility model, the bottom wall of the installation groove is provided with an annular installation part, the first air inlet is positioned at the inner side of the installation part, the installation part is inserted into the first accommodating groove, and one end of the filtering device is embedded into the installation part.

According to some embodiments of the utility model, the mounting groove is opened upward, and the axis of the mounting portion and the axis of the mounting cover are both disposed in the up-down direction.

According to some embodiments of the utility model, the host is provided with a first limiting portion, the mounting cover is provided with a second limiting portion matched with the first limiting portion, and when the mounting cover rotates relative to the host so that the clamping portion is inserted into the clamping groove, the first limiting portion and the second limiting portion are mutually matched and abutted to limit the rotation of the mounting cover.

According to some embodiments of the utility model, the filter device comprises a first filter element and a second filter element stacked together, the first filter element being adjacent to the first air inlet.

According to some embodiments of the utility model, the device further comprises a collecting box, the collecting box is detachably mounted on the host, the collecting box is provided with a collecting cavity and a second air inlet communicated with the suction pipe, the second air inlet is communicated with the collecting cavity, one end of the collecting box is provided with a second accommodating groove, the groove wall of the second accommodating groove is covered on the mounting cover, the bottom wall of the second accommodating groove is provided with a filter screen, the second accommodating groove is communicated with the collecting cavity through the filter screen, and the mounting cover is provided with a vent hole opposite to the filter screen.

According to some embodiments of the utility model, the mounting cover is sleeved with a first sealing element, at least two annular first elastic sealing parts are arranged at intervals on the periphery of the first sealing element, the first elastic sealing parts are gradually far away from the collecting cavity from inside to outside, and the outer ends of the first elastic sealing parts are abutted against the inner wall of the second accommodating groove.

According to some embodiments of the utility model, a first clamping groove is formed in a side surface, close to the first air inlet, of the first sealing piece, a first clamping ring is arranged on the mounting cover in an extending mode in a direction away from the first air inlet, and the first clamping ring is clamped in the first clamping groove.

According to some embodiments of the utility model, the collecting box comprises a bottom cover and a bin body, the collecting cavity is arranged on the bin body, an opening communicated with the collecting cavity is arranged at one end of the bin body, the bottom cover is clamped with the opening of the bin body, and a second sealing piece is arranged between the bottom cover and the inner peripheral wall of the opening.

According to some embodiments of the utility model, the second sealing member is sleeved on the bottom cover, at least two annular second elastic sealing portions are arranged at intervals on the periphery of the second sealing member, and the second elastic sealing portions are gradually far away from the collecting cavity from inside to outside.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a vacuum cleaner according to an embodiment of the present utility model;

FIG. 2 is an exploded view of the vacuum cleaner shown in FIG. 1;

FIG. 3 is an enlarged view of FIG. 2 at A;

FIG. 4 is an enlarged view at B in FIG. 2;

FIG. 5 is a cross-sectional view of the vacuum cleaner shown in FIG. 1;

fig. 6 is an enlarged view at C in fig. 5.

Reference numerals:

host 100, mounting groove 110, first intake vent 120, clamping block 130, mounting portion 140, clamping groove 150, first limiting portion 160, suction device 200, mounting cover 300, first receiving groove 310, clamping portion 320, relief vent 330, abutment 340, vent 350, first snap ring 360, second limiting portion, filter device 400, first filter 410, second filter 420, collection box 500, bin 510, collection chamber 511, second intake vent 512, bottom cover 520, second receiving groove 521, filter screen 530, suction tube 600, first seal 700, first elastic seal 711, first clamping groove 712, second seal 720, second elastic seal 721.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 6, a vacuum cleaner according to an embodiment of the present utility model includes a main unit 100, a mounting cover 300, a filtering device 400, and at least one set of clamping structures, wherein a suction device 200 is disposed in the main unit 100, a mounting groove 110 and a first air inlet 120 communicating with the suction device 200 are disposed on an outer wall of the main unit 100, and the first air inlet 120 is located at an inner side of a peripheral wall of the mounting groove 110; the filtering device 400 covers the first air inlet 120; a first receiving groove 310 for receiving the filter device 400 is formed at a side surface of the mounting cover 300 adjacent to the first air inlet 120; each group of clamping structures comprises a clamping groove 150 and a clamping part 320 which can be inserted into the clamping groove 150, wherein one of the clamping groove 150 and the clamping part 320 is arranged on the peripheral wall of the mounting groove 110, and the other clamping groove is arranged on the periphery of the mounting cover 300; when the mounting cover 300 is fitted into the mounting groove 110, the filter device 400 is fitted into the first accommodating groove 310 and abuts against the mounting cover 300, and the mounting cover 300 rotates relative to the host 100 to enable the engaging portion 320 to be inserted into the engaging groove 150 or to be withdrawn from the engaging groove 150.

When the filter device 400 is installed, the filter device 400 and the installation cover 300 are installed in the installation groove 110, and then the installation cover 300 is only required to be rotated, so that the clamping part 320 on the installation cover 300 is inserted into the clamping groove 150, at the moment, the clamping part 320 is clamped with the side wall of the clamping groove 150 to prevent the installation cover 300 from being separated from the installation groove 110, the installation cover 300 is abutted with the filter device 400 to cover the filter device 400 on the first air inlet 120, so that the installation of the filter device 400 is completed, and when the filter device 400 is disassembled, the installation cover 300 is only required to be rotated, so that the clamping part 320 is withdrawn from the clamping groove 150, and the installation cover 300 and the filter device 400 can be removed.

It is conceivable that, in the implementation process, one or more than two groups of the above-mentioned fastening structures may be provided, where, when the fastening structure is provided in one group, the fastening portion 320 and the fastening groove 150 are disposed along the circumferential direction of the mounting cover 300, and the two may be slightly longer along the circumferential direction of the mounting cover 300, so that the fastening portion 320 and the fastening groove 150 are fastened more firmly; when the fastening structure is provided with more than two groups, the fastening portions 320 and the fastening grooves 150 can be uniformly distributed along the circumferential direction of the mounting cover 300.

It is conceivable that, in the process of disassembly and assembly, the angle of rotation of the mounting cover 300 is determined by the length of the clamping portion 320 which is inserted into the clamping groove 150, and when more than two groups of clamping structures are provided, the length of the clamping portion 320 which is inserted into the clamping groove 150 can be made smaller, and the mounting strength of the mounting cover 300 is not affected, at this time, the angle of rotation of the mounting cover 300 is far less than 360 degrees. The specific rotation angle of the mounting cover 300 during the mounting and dismounting process can be determined according to the need.

Referring to fig. 2 to 4, it is conceivable that in some embodiments, the clamping structure is provided with two or more groups, wherein two or more clamping portions 320 are uniformly disposed on the outer periphery of the mounting cover 300 along the circumferential direction of the mounting cover 300, two or more clamping blocks 130 are uniformly disposed on the circumferential wall of the mounting groove 110 along the circumferential direction thereof, the clamping groove 150 is located between the clamping blocks 130 and the bottom wall of the mounting groove 110, and an avoidance opening 330 through which the clamping blocks 130 can pass is formed between two adjacent clamping portions 320. Then, in the process of mounting the mounting cap 300, the avoiding opening 330 is aligned with the locking block 130, then the mounting cap 300 is mounted, and the mounting cap 300 is rotated, so that the locking portion 320 is inserted into the locking groove 150, and at this time, the locking portion 320 abuts against the side wall of the locking groove 150, and the mounting cap 300 abuts against the bottom wall of the mounting groove 110. In the process of removing the mounting cover 300, the mounting cover 300 rotates relative to the host 100 to enable the clamping portion 320 to withdraw from the clamping groove 150, and at this time, the avoiding opening 330 is aligned with the clamping block 130, so that the mounting cover 300 can be removed.

Referring to fig. 2, 4, 5 and 6, it is conceivable that in some embodiments, the bottom wall of the mounting groove 110 is provided with a circular mounting portion 140, the first air inlet 120 is located inside the mounting portion 140, the mounting portion 140 is inserted into the first accommodating groove 310, and one end of the filtering device 400 is embedded in the mounting portion 140. Through the setting of the installation department 140, make the filter equipment 400 can install in the exact position to cover first air intake 120, and filter equipment 400 installs more firmly, avoids appearing rocking the condition in the course of the work.

Referring to fig. 2, it is conceivable that in some embodiments, the opening of the mounting groove 110 is upward, and the axis of the mounting portion 140 and the axis of the mounting cover 300 are both disposed in the up-down direction, that is, the filter device 400 and the mounting cover 300 are disposed in the horizontal direction, so that the filter device 400 is not moved by the gravity of the user during the process of assembling and disassembling the filter device 400, and the assembly and disassembly of the filter device 400 are more convenient.

Referring to fig. 4, it is conceivable that in some embodiments, the host machine 100 is provided with a first limiting portion 160, and the mounting cover 300 is provided with a second limiting portion, not shown in the drawing, for cooperating with the first limiting portion 160, and when the mounting cover 300 rotates relative to the host machine 100 such that the clamping portion 320 is inserted into the clamping slot 150, the first limiting portion 160 and the second limiting portion cooperate with each other to abut against to limit the rotation of the mounting cover 300. In this way, through the mutual cooperation of the first limiting part 160 and the second limiting part, the rotating angle of the installation cover 300 in the process of installing the filtering device 400 can be limited, and the overlarge rotating angle of the installation cover 300 is avoided, so that the overlarge rotating angle of the installation cover 300 is required when the filtering device 400 is disassembled.

Referring to fig. 4, in the implementation process, one of the first limiting portion 160 and the second limiting portion is provided with a limiting protrusion, and the other one is provided with a sliding groove, when the mounting cover 300 is embedded in the mounting groove 110, the limiting protrusion is located in the sliding groove, and the mounting cover 300 rotates by a certain angle relative to the host 100, so that after the clamping portion 320 is inserted into the clamping groove 150, the limiting protrusion abuts against a side wall of the sliding groove, so as to limit the mounting cover 300 to continue rotating.

Referring to fig. 2, 5 and 6, it is conceivable that in some embodiments, the filtering apparatus 400 includes a first filtering member 410 and a second filtering member 420 stacked together, the first filtering member 410 is close to the first air inlet 120, by disposing the first filtering member 410 and the second filtering member 420, the effect of the filtering apparatus 400 can be improved, and when the filtering apparatus 400 is replaced, only the second filtering member 420 can be replaced, so as to reduce the use cost.

In particular implementations, the first filter 410 may be a sponge, activated carbon cotton, or other type of filter, and the second filter 420 may be a sponge, activated carbon cotton, or other type of filter.

Referring to fig. 2, 5 and 6, it is conceivable that in some embodiments, the diameter of the first filter element 410 is larger than that of the second filter element 420, the inner wall of the first accommodating groove 310 is provided with an abutting portion 340, the abutting portion 340 abuts against the first filter element 410, and the second filter element 420 abuts against the bottom wall of the first accommodating groove 310, so that the first filter element 410 and the second filter element 420 can be installed more firmly.

Referring to fig. 1, 2 and 5, it is conceivable that in some embodiments, the device further includes a collecting box 500, where the collecting box 500 is detachably mounted on the host 100, the collecting box 500 is provided with a collecting cavity 511 and a second air inlet 512 that is communicated with the suction pipe 600, the second air inlet 512 is communicated with the collecting cavity 511, one end of the collecting box 500 is provided with a second accommodating groove 521, a groove wall of the second accommodating groove 521 is covered on the mounting cover 300, a bottom wall of the second accommodating groove 521 is provided with a filter screen 530, the second accommodating groove 521 is communicated with the collecting cavity 511 through the filter screen 530, and the mounting cover 300 is provided with a ventilation hole 350 opposite to the filter screen 530. During operation of the cleaner, the suction device 200 sucks air in the collecting chamber 511, so that external dust, hair or other garbage is sucked into the collecting chamber 511 from the suction pipe 600, wherein most of the garbage is blocked by the filter screen 530 and remains in the collecting chamber 511, and the air is filtered by the filter device 400 to remove fine dust and then enters the suction device 200.

Referring to fig. 2, 5 and 6, it is conceivable that in some embodiments, the mounting cover 300 is sleeved with the first sealing member 700, at least two annular first elastic sealing portions 711 are disposed at intervals on the outer periphery of the first sealing member 700, the first elastic sealing portions 711 are gradually separated from the collecting cavity 511 from inside to outside, so that the mounting cover 300 and the first sealing member 700 are conveniently mounted in the second accommodating groove 521, and the outer ends of the first elastic sealing portions 711 are abutted against the inner wall of the second accommodating groove 521. When the collecting box 500 is mounted on the host 100, the first elastic sealing parts 711 can elastically deform to tightly abut against the inner wall of the second accommodating groove 521, and more than two first elastic sealing parts 711 can form more than two seals, so that the sealing performance between the mounting cover 300 and the collecting box 500 is good, and external air is effectively prevented from entering the suction device 200 from a gap between the mounting cover 300 and the collecting box 500, and insufficient suction in the collecting cavity 511 is prevented.

Referring to fig. 2, 5 and 6, it is conceivable that in some embodiments, a side surface of the first sealing member 700 near the first air inlet 120 is provided with a first annular clamping groove 712, and the mounting cover 300 is provided with a first clamping ring 360 extending in a direction away from the first air inlet 120, where the first clamping ring 360 is clamped in the first clamping groove 712. By the arrangement, the first sealing member 700 can be conveniently installed, and the first sealing member 700 is more firmly installed. In addition, the upper end of the first sealing member 700 may also abut against the bottom wall of the second receiving groove 521 to further improve the sealability between the mounting cover 300 and the collection box 500.

Referring to fig. 2, 5 and 6, it is conceivable that in some embodiments, the collecting box 500 includes a bottom cover 520 and a bin body 510, the collecting chamber 511 is disposed on the bin body 510, an opening communicating with the collecting chamber 511 is disposed at one end of the bin body 510, the bottom cover 520 is clamped with the opening of the bin body 510, and a second sealing member 720 is disposed between the bottom cover 520 and an inner peripheral wall of the opening. With the above arrangement, when the collection box 500 needs to be cleaned, the collection box 500 can be removed from the host 100, and then the bottom cover 520 is opened to pour the garbage in the collection chamber 511 into the garbage can.

Referring to fig. 2, 5 and 6, it is conceivable that in some embodiments, the second sealing member 720 is sleeved on the bottom cover 520, at least two annular second elastic sealing portions 721 are disposed at intervals on the outer periphery of the second sealing member 720, and the second elastic sealing portions 721 are gradually far away from the collecting cavity 511 from inside to outside, so as to facilitate the bottom cover 520 and the second sealing member 720 to be installed into the opening of the collecting cavity 511. Through the above arrangement, when the bottom cover 520 is mounted on the bin body 510, the second elastic sealing portions 721 can elastically deform to tightly abut against the inner wall of the bin body 510, and more than two second elastic sealing portions 721 can form more than two seals, so that the tightness between the bin body 510 and the bottom cover 520 is good, and external air is prevented from entering the collecting cavity 511 from a gap between the bin body 510 and the bottom cover 520, and garbage in the collecting cavity 511 is prevented from leaving the collecting cavity 511 from a gap between the bin body 510 and the bottom cover 520.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The present embodiment has been described in detail with reference to the drawings, but the present utility model is not limited to the above embodiment, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit.

Claims

1. A vacuum cleaner, comprising:

the device comprises a host machine (100), wherein a suction device (200) is arranged in the host machine (100), an installation groove (110) and a first air inlet (120) communicated with the suction device (200) are arranged on the outer wall of the host machine (100), and the first air inlet (120) is positioned on the inner side of the peripheral wall of the installation groove (110);

-a filtering device (400) covering the first air inlet (120);

a mounting cover (300), wherein a first accommodating groove (310) for accommodating the filtering device (400) is formed in one side surface of the mounting cover (300) close to the first air inlet (120);

each clamping structure comprises a clamping groove (150) and a clamping part (320) which can be inserted into the clamping groove (150), one of the clamping groove (150) and the clamping part (320) is arranged on the peripheral wall of the mounting groove (110), and the other clamping structure is arranged on the periphery of the mounting cover (300);

when the installation cover (300) is embedded in the installation groove (110), the filtering device (400) is embedded in the first accommodating groove (310) and is abutted against the installation cover (300), and the installation cover (300) rotates relative to the host machine (100) so that the clamping part (320) can be inserted into the clamping groove (150) or withdrawn from the clamping groove (150).

2. The vacuum cleaner according to claim 1, wherein the clamping structure is provided with two or more groups, wherein two or more clamping portions (320) are uniformly arranged on the periphery of the mounting cover (300) along the circumferential direction of the mounting cover (300), two or more clamping blocks (130) are uniformly arranged on the circumferential wall of the mounting groove (110) along the circumferential direction of the mounting groove, the clamping groove (150) is located between the clamping blocks (130) and the bottom wall of the mounting groove (110), and an avoidance opening (330) through which the clamping blocks (130) can pass is formed between two adjacent clamping portions (320).

3. The vacuum cleaner according to claim 1, wherein the bottom wall of the mounting groove (110) is provided with a circular mounting portion (140), the first air inlet (120) is located inside the mounting portion (140), the mounting portion (140) is inserted into the first accommodating groove (310), and one end of the filtering device (400) is embedded into the mounting portion (140).

4. A vacuum cleaner according to claim 3, wherein the mounting groove (110) is open upward, and the axis of the mounting portion (140) and the axis of the mounting cover (300) are both arranged in the up-down direction.

5. The vacuum cleaner according to claim 1, wherein the main unit (100) is provided with a first limiting portion (160), the mounting cover (300) is provided with a second limiting portion for being matched with the first limiting portion (160), and when the mounting cover (300) rotates relative to the main unit (100) such that the clamping portion (320) is inserted into the clamping groove (150), the first limiting portion (160) and the second limiting portion are mutually matched and abutted to limit rotation of the mounting cover (300).

6. The vacuum cleaner of claim 4, wherein the filter arrangement (400) includes a first filter element (410) and a second filter element (420) stacked together, the first filter element (410) being adjacent the first air inlet (120).

7. The vacuum cleaner according to claim 1, further comprising a collection box (500), wherein the collection box (500) is detachably mounted on the main unit (100), the collection box (500) is provided with a collection cavity (511) and a second air inlet (512) communicated with the suction pipe (600), the second air inlet (512) is communicated with the collection cavity (511), one end of the collection box (500) is provided with a second accommodating groove (521), a groove wall of the second accommodating groove (521) is covered on the mounting cover (300), a filter screen (530) is arranged on a bottom wall of the second accommodating groove (521), the second accommodating groove (521) is communicated with the collection cavity (511) through the filter screen (530), and the mounting cover (300) is provided with a vent hole (350) opposite to the filter screen (530).

8. The dust collector as claimed in claim 7, wherein the mounting cover (300) is sleeved with a first sealing member (700), at least two annular first elastic sealing portions (711) are arranged at intervals on the periphery of the first sealing member (700), the first elastic sealing portions (711) are gradually far away from the collecting cavity (511) from inside to outside, and the outer ends of the first elastic sealing portions (711) are abutted against the inner wall of the second accommodating groove (521).

9. The vacuum cleaner according to claim 8, wherein a side surface of the first sealing member (700) close to the first air inlet (120) is provided with a first annular clamping groove (712), the mounting cover (300) is provided with a first clamping ring (360) extending in a direction away from the first air inlet (120), and the first clamping ring (360) is clamped in the first clamping groove (712).

10. The dust collector of claim 7, wherein the collection box (500) comprises a bottom cover (520) and a bin body (510), the collection cavity (511) is arranged in the bin body (510), an opening communicated with the collection cavity (511) is formed at one end of the bin body (510), the bottom cover (520) is clamped with the opening of the bin body (510), and a second sealing piece (720) is arranged between the bottom cover (520) and the inner peripheral wall of the opening.