Barrel type dust collector

Abstract

The invention provides a barrel type dust collector which comprises a main body, a dust collector body and a dust collector body. The dust collection barrel is detachably arranged in the mounting cavity, the dust collection barrel comprises an inner barrel and an outer barrel, the inner barrel is arranged in the outer barrel and is separated from at least one part of the outer barrel to form a sound insulation cavity, and the inner barrel is connected with the outer barrel to seal the sound insulation cavity. The double-layer dust collection barrel structure comprising the inner barrel and the outer barrel is designed, and the sound insulation cavity is formed between the inner barrel and the outer barrel, so that noise is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of vacuum cleaners, and in particular relates to a barrel type vacuum cleaner. Background Art

[0002] Vacuum cleaners are widely used in life and industry. Vacuum cleaners usually include an airflow generating device and a filter. When the vacuum cleaner is working, driven by the power of the airflow generating device, the dust-laden airflow enters the vacuum cleaner and flows through the filter. The dust in the dust-laden airflow is intercepted by the filter and collected in the dust bag. The clean airflow formed after dust removal is discharged from the air outlet of the vacuum cleaner along the air duct. The barrel vacuum cleaner is a common and powerful household cleaning device. Its main feature is that it uses a barrel container to collect dust and debris. It usually includes a motor, a dust head and a series of accessories for different cleaning tasks. At present, barrel vacuum cleaners on the market have problems such as high noise, short air duct, low filtration efficiency and short battery life. Summary of the invention

[0003] In view of the above shortcomings of the prior art, an object of the present invention is to provide a barrel vacuum cleaner to improve the existing barrel vacuum cleaners such as loud noise, short air duct, low filtration efficiency, short battery life and other problems.

[0004] To achieve the above-mentioned object and other related objects, the present invention provides a barrel-type vacuum cleaner, comprising:

[0005] A main body, wherein a mounting cavity having an opening is provided in the main body;

[0006] A dust collecting bucket is detachably mounted in the mounting cavity, the dust collecting bucket comprises an inner bucket and an outer bucket, the inner bucket is mounted in the outer bucket and is separated from at least a portion of the outer bucket to form a soundproof cavity, and the inner bucket is connected to the outer bucket to close the soundproof cavity.

[0007] In a preferred embodiment of the present invention, the sound insulation chamber is barrel-shaped.

[0008] In a preferred embodiment of the present invention, the inner barrel includes a first barrel portion and a first connecting portion arranged at a barrel mouth of the first barrel portion, the outer barrel includes a second barrel portion and a second connecting portion arranged at a barrel mouth of the second barrel portion, the first barrel portion and the second barrel portion are separated to form a soundproof cavity, and the first connecting portion is connected to the second connecting portion to close the soundproof cavity.

[0009] In a preferred embodiment of the present invention, the height of the dust collecting bucket is H, the height of the sound insulation cavity is h, and h≥3 / 4H.

[0010] In a preferred embodiment of the present invention, the inner wall surface of the installation cavity includes a connecting surface, a through hole connected to the dust collecting bucket is provided on the connecting surface, and multiple layers of sealing rings are provided between the dust collecting bucket and the connecting surface, and the innermost layer of the sealing ring is arranged around the through hole.

[0011] In a preferred embodiment of the present invention, the multi-layer sealing ring includes a first sealing ring and a second sealing ring, a dust and gas separation device is provided in the dust collecting bucket, the first sealing ring is provided between the dust and gas separation device and the connecting surface, and the second sealing ring is provided between the cover plate of the dust collecting bucket and the connecting surface.

[0012] In a preferred embodiment of the present invention, the connecting surface is arranged at an angle, an end of the connecting surface close to the opening is higher than an end of the connecting surface far from the opening, the height of the end of the first sealing ring close to the opening is higher than the height of the end of the first sealing ring far from the opening, and the height gradually decreases from the end close to the opening to the end far from the opening along the circumferential direction, and the second sealing ring is arranged at an angle between the connecting surface and the cover plate.

[0013] In a preferred embodiment of the present invention, the multiple layers of sealing rings are all located on the inner side of the barrel opening of the inner barrel.

[0014] In a preferred embodiment of the present invention, the air duct assembly is fixedly connected to the main body and is located above the connecting surface, and at least three layers of annular air ducts are arranged around the air duct assembly.

[0015] In a preferred embodiment of the present invention, the air duct assembly further includes a radial air duct, the radial air duct is connected to the outlet of the surrounding annular air duct, and a circuit board is arranged in the radial air duct.

[0016] In a preferred embodiment of the present invention, the extending direction of the circuit board is arranged parallel to or inclined with the extending direction of the radial air duct.

[0017] In a preferred embodiment of the present invention, the outlet direction of the radial air duct is opposite to the opening direction of the installation cavity.

[0018] In a preferred embodiment of the present invention, the circuit board includes an AC power mode and a DC power mode.

[0019] In a preferred embodiment of the present invention, the dust and gas separation device comprises:

[0020] a partition, the partition being attached to and sealed against the inner wall of the inner barrel, and having a vent hole;

[0021] A cone is mounted at the bottom of the partition, and an end of the cone with a larger diameter is connected to the vent hole;

[0022] A lower shell, which is mounted on the bottom of the cone and abuts against the bottom surface of the inner barrel;

[0023] A filter screen, which is arranged around the outside of the cone and connected to the partition plate and the lower shell;

[0024] The filter element is arranged above the partition plate and covers the through hole.

[0025] In a preferred embodiment of the present invention, the cone comprises:

[0026] A plurality of cone bodies, wherein the cone bodies are located on the bottom surface of the partition and correspond to the vent holes;

[0027] An air inlet is formed at the top of the cone body. The air inlet is communicated with the inner chamber of the cone body and is tangent to the inner wall of the cone body.

[0028] In a preferred embodiment of the present invention, a protruding structure is arranged around the circumference of each vent hole of the partition plate, and the protruding structure extends to the inner space of the cone body.

[0029] In a preferred embodiment of the present invention, at least two battery pack installation cavities are provided on the main body, and the battery pack installation cavity is located on one side of the installation cavity, and a battery pack is detachably installed in the battery pack installation cavity.

[0030] In a preferred embodiment of the present invention, an air inlet is further formed on the main body, the direction of the air inlet is opposite to the direction of the opening of the installation cavity, and the air inlet is connected to the internal space of the inner barrel.

[0031] The present invention proposes a barrel-type vacuum cleaner, which is designed with a double-layer dust collecting barrel structure including an inner barrel and an outer barrel, and a soundproof cavity is formed between the inner barrel and the outer barrel to reduce noise. At the same time, at least three layers of annular air duct structures are arranged around the outside of a vacuum motor, and the air outlet is close to the end of the air duct component and is tangent to the outermost annular air duct, thereby improving the efficiency of the vacuum cleaner and further reducing the noise of the vacuum cleaner. At least two layers of sealing rings are arranged between the air duct component and the dust barrel, and the noise of the vacuum cleaner is further reduced through the double-layer sealing structure. At the same time, a multi-cone dust and gas separation device is used to achieve dust and gas filtration, thereby improving the filtration efficiency of the vacuum cleaner and ensuring the filtration effect.

[0032] The present invention proposes a barrel vacuum cleaner, which designs a circuit board that is compatible with AC power mode and DC power mode, so that the barrel vacuum cleaner can use AC power or DC power to adapt to different usage scenarios; two detachable battery packs are designed on the main body to further increase the battery life of the vacuum cleaner. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0034] Figure 1 The figure is a front view of a barrel type vacuum cleaner according to one embodiment of the present invention.

[0035] Figure 2 The figure is an axial schematic diagram of a barrel vacuum cleaner according to one embodiment of the present invention.

[0036] Figure 3 The figure is a schematic diagram of the installation cavity of a barrel-type vacuum cleaner in one embodiment of the present invention.

[0037] Figure 4 FIG. 1 is another axial schematic diagram of a barrel vacuum cleaner according to one embodiment of the present invention.

[0038] Figure 5 The figure is a cross-sectional schematic diagram of a barrel vacuum cleaner according to one embodiment of the present invention.

[0039] Figure 6 The figure is a schematic diagram of a dust collecting bucket in a barrel-type vacuum cleaner according to one embodiment of the present invention.

[0040] Figure 7 for Figure 5 A magnified schematic diagram of center A.

[0041] Figure 8 The figure is a schematic diagram of the air duct of a barrel-type vacuum cleaner in one embodiment of the present invention.

[0042] Fig. 9 The figure is a schematic structural diagram of a dust and gas separation device in a barrel-type vacuum cleaner according to one embodiment of the present invention.

[0043] Fig.10 The figure is a schematic diagram of a first partition of a barrel-type vacuum cleaner in one embodiment of the present invention.

[0044] Fig.11 FIG. 1 is a schematic diagram of a cone in a barrel-type vacuum cleaner according to an embodiment of the present invention.

[0045] Description of labels:

[0046] 100, barrel vacuum cleaner; 10, main body; 20, dust collecting barrel; 30, dust and gas separation device; 40, air inlet; 50, air duct assembly; 60, vacuum motor; 101, installation cavity; 201, sound insulation cavity; 202, first through hole; 203, protrusion; 21, inner barrel; 22, outer barrel; 23, cover plate; 211, first barrel part; 212, first connecting part; 221, second barrel part; 222, second connecting part; 1011, connecting surface; 1012, second through hole; 102 , first sealing ring; 103, second sealing ring; 31, first partition; 311, first part; 312, second part; 32, cone; 33, lower shell; 34, filter; 35, filter element; 36, top bracket; 331, second partition; 332, shell; 321, cone body; 322, air inlet; 301, vent; 302, raised structure; 501, air duct; 502, radial air duct; 70, circuit board; 80, battery pack installation cavity; 200, battery pack. DETAILED DESCRIPTION

[0047] The following describes the embodiments of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention.

[0048] It should be noted that the illustrations provided in this embodiment are only used to illustrate the basic concept of the present invention in a schematic manner. Therefore, the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0049] It is understandable that the bearings in existing motors are basically glued to the bearing chamber with glue. In this way, the bearings are completely fixed. If the concentricity of the bearing position is not good, the bearing operation noise can easily increase. At the same time, the heat generated during the operation process can easily cause the glue to fail, resulting in the bearing debonding and losing its fixation, which in turn causes the motor to fail. In addition, this type of fixing method causes the vibration of the motor operation to be transmitted to the outside of the motor through the bearing chamber, causing the problem of high motor noise.

[0050] See also Figures 1 to 11As shown, a barrel vacuum cleaner 100 is a common and powerful household cleaning device, and its main feature is that it uses a barrel container to collect dust and debris. However, the motor cover of the existing vacuum cleaners has a short air outlet duct, and generally uses a single-layer dust cup and a single-layer sealing ring, which cannot effectively reduce the machine noise and affect the customer experience. At the same time, the power supply access method is generally only AC power access or self-contained DC power supply, which cannot adapt to different scenarios. In addition, commonly used vacuum cleaners basically have a built-in battery pack, or only have a detachable battery pack, and their battery life is poor. In addition, commonly used barrel vacuum cleaners are basically dust bag type or single cone filtering method, and their filtering effect is not good and the efficiency is low. That is, the existing vacuum cleaners have problems such as high noise, inflexible power access, low filtering efficiency, and short battery life of the battery pack, which will greatly affect the user experience and the customer experience is poor. Therefore, the present invention proposes a barrel vacuum cleaner 100 to improve the above problems. Specifically, the barrel vacuum cleaner 100 includes a main body 10, a dust bucket 20, a dust and gas separation device 30, an air duct assembly 50 and a vacuum motor 60. The dust bucket 20 is detachably mounted in the main body 10. Specifically, a mounting cavity 101 having an opening is provided in the main body 10, the dust bucket 20 is detachably arranged in the mounting cavity 101, the dust and gas separation device 30 is detachably mounted in the dust bucket 20, and an air inlet 40 is provided on one side of the main body 10. The direction of the air inlet 40 is opposite to the direction of the opening of the mounting cavity 101, and the air inlet 40 is opposite to the inner barrel of the dust bucket 20. The internal space of the barrel vacuum cleaner 100 is connected with the internal space of the barrel vacuum cleaner 100, the air duct assembly 50 is fixedly connected to the main body 10 and is located above the dust and gas separation device 30, the vacuum motor 60 is fixedly installed inside the air duct assembly 50, and the air ducts in the air duct assembly 50 are respectively connected to the internal space of the dust and gas separation device 30. When in use, the vacuum motor 60 is started, and air carrying dust or other debris enters the dust and gas separation device 30 from the air inlet 40. After the filtering effect of the dust and gas separation device 30, the dust or other debris is filtered, and the clean air enters the air duct assembly 50 and is discharged from the outlet to the outside of the barrel vacuum cleaner 100.

[0051] See also Figure 1 , Figure 3 , Figure 5 , Figure 6 and Fig. 9As shown, in this embodiment, the dust collecting bucket 20 includes an inner bucket 21 and an outer bucket 22, the inner bucket 21 is arranged in the outer bucket 22, and is spaced apart from at least a portion of the outer bucket 22 to form a soundproof cavity 201, the inner bucket 21 and the outer bucket 22 are connected to close the soundproof cavity 201, and the soundproof cavity 201 plays a role in isolating noise, reducing the noise during the operation of the vacuum cleaner. Specifically, the soundproof cavity 201 is barrel-shaped, and is spaced apart between the annular walls of the inner bucket 21 and the outer bucket 22, and the bottom walls of the inner bucket 21 and the outer bucket 22 are also spaced apart from each other to form the soundproof cavity 201. In some other embodiments, a first through hole 202 and a protrusion 203 are provided at the bottom of the inner barrel 21, and the protrusion 203 is located between the inner barrel 21 and the outer barrel 22, so that there is a certain gap between the inner barrel 21 and the outer barrel 22, so that the dust and debris separated by the dust and gas separation device 30 enter the outer barrel 22 through the first through hole 202. When dumping the dust, the dust is discharged into the outer barrel 22 through the first through hole 202, and there is no need to disassemble the dust and gas separation device 30, which is convenient for dust cleaning.

[0052] See also Figure 5 and Figure 6 As shown, in this embodiment, the inner barrel 21 includes a first barrel portion 211 and a first connecting portion 212, the first connecting portion 212 is arranged at the barrel mouth position of the first barrel portion 211, the outer barrel 22 includes a second barrel portion 221 and a second connecting portion 222, the second connecting portion 222 is arranged at the barrel mouth position of the second barrel portion 221, the first barrel portion 211 is arranged on the inner side of the second barrel portion 221, and the first barrel portion 211 and the second barrel portion 221 are spaced apart to form the soundproof cavity 201, the first connecting portion 212 and the second connecting portion 222 are connected to close the soundproof cavity 201, so as to ensure the sealing of the soundproof cavity 201 and improve its noise reduction effect. Further, the height of the dust collecting barrel 20 is H, and the height of the soundproof cavity 201 is h, wherein h≥3 / 4H, so as to ensure the soundproof and noise reduction effect of the soundproof cavity 201, and effectively reduce the noise of the barrel-type vacuum cleaner 100 when working.

[0053] See also Figure 5 , Figure 6 and Figure 7As shown, in this embodiment, the inner wall surface of the installation cavity 101 includes a connecting surface 1011, and a second through hole 1012 connected to the dust bucket 20 is provided on the connecting surface 1011. Specifically, the second through hole 1012 is connected to the inner bucket 21, and a plurality of sealing rings are provided between the dust bucket 20 and the connecting surface 1011, wherein the sealing ring located in the innermost layer is arranged around the second through hole 1012 to ensure the sealing of the barrel vacuum cleaner 100. At the same time, the multi-layer sealing ring structure can further reduce the noise of the barrel vacuum cleaner 100.

[0054] See also Figure 5 , Figure 6 and Figure 7 As shown, in this embodiment, the multi-layer sealing ring includes at least a first sealing ring 102 and a second sealing ring 103, the dust and gas separation device 30 is arranged in the inner barrel 21, the first sealing ring 102 is arranged between the dust and gas separation device 30 and the connecting surface 1011, and the second sealing ring 103 is arranged between the cover plate 23 of the dust collecting barrel 20 and the connecting surface 1011. The first sealing ring 102 and the second sealing ring 103 are respectively sealed by the extrusion action of the connecting surface 1011 and the dust and gas separation device 30 and the cover plate 23, and the noise of the barrel vacuum cleaner 100 is further reduced by the double-layer sealing structure.

[0055] See also Figure 5 , Figure 6 and Figure 7 As shown, in this embodiment, the connection surface 1011 is arranged in an inclined manner. Specifically, the end of the connection surface 1011 close to the opening is higher than the end of the connection surface 1011 away from the opening, and the height of the end of the first sealing ring 102 close to the opening is higher than the end of the first sealing ring 102 away from the opening, and the height of the first sealing ring 102 gradually decreases from the end close to the opening along its circumference to the end away from the opening, so that it can be well adapted to the connection surface 1011 while ensuring its sealing performance. The second sealing ring 103 is arranged in an inclined manner between the connection surface 1011 and the cover plate 23. Specifically, the end of the second sealing ring 103 close to the opening is higher than the end of the second sealing ring 103 away from the opening, so that it can be better adapted to the connection surface 1011 and ensure its sealing performance. Further, the multiple layers of the sealing rings are all located on the inner side of the barrel mouth of the inner barrel 21, which ensures its sealing performance while effectively reducing the noise of the barrel vacuum cleaner 100.

[0056] See also Figure 5 and Figure 8As shown, in the present embodiment, the barrel vacuum cleaner 100 further includes an air duct assembly 50, which is fixedly connected to the main body 10 and is located above the dust and gas separation device 30, specifically above the connecting surface 1011, and at least three layers of annular air ducts 501 are formed around the air duct assembly 50, and the innermost annular air duct 501 is connected to the second through hole 1012 on the connecting surface 1011, and the innermost annular air duct 501 is connected to the internal space of the dust and gas separation device 30 through the second through hole 1012.

[0057] See also Figure 5 and Figure 8 As shown, in this embodiment, the air duct assembly 50 also includes a radial air duct 502, which is connected to the outlet of the three-layer annular air duct 501 arranged around, and the outlet direction of the radial air duct 502 is opposite to the opening direction of the installation cavity 101. In this embodiment, the vacuum motor 60 is fixedly connected to the air duct assembly 50 and is arranged in the innermost annular air duct 501 of at least three layers of annular air ducts 501. The annular air duct 501 located in the outermost layer is connected to the radial air duct 502. The annular air duct 501 located in the innermost layer is connected to the internal space of the dust and gas separation device 30 through the second through hole 1012. The air carrying dust or debris enters the inner barrel 21 from the air inlet 40. The clean air filtered by the dust and gas separation device 30 enters the annular air duct 501 of the air duct assembly 50 through the second through hole 1012 on the connecting surface 1011, and is finally discharged to the outside of the barrel vacuum cleaner 100 through the radial air duct 502. In this embodiment, one end of the radial air duct 502 close to the annular air duct 501 is tangent to the annular air duct 501 located on the outer layer. By arranging a structure of at least three layers of annular air ducts 501 surrounding the outer side of the vacuum motor 60, the length of the annular air duct 501 can be effectively extended, and tangential air outlet can be achieved, which can effectively reduce the noise of the barrel vacuum cleaner 100, improve the efficiency of the barrel vacuum cleaner 100, and improve the user experience.

[0058] See also Figure 5 and Figure 8As shown, in the present embodiment, a circuit board 70 is arranged in the radial air duct 502, and the extension direction of the circuit board 70 is not disposed in the extension direction of the radial air duct 502. For example, the extension direction of the circuit board 70 is arranged parallel to or obliquely to the extension direction of the radial air duct 502. Specifically, the extension direction of the circuit board 70 can be arranged to extend along the air outlet direction of the three-layer annular air duct 501 or to be tangent to the outlet of the outermost annular air duct 501 of the three-layer air duct. The circuit board 70 can be arranged obliquely in the radial air duct 502 to avoid dust affecting the normal use of the circuit board 70, and can also effectively improve the heat dissipation effect of the circuit board 70 to ensure the normal operation of the circuit board 70.

[0059] See also Figure 1 , Figure 2 , Figure 5 and Figure 8 As shown, in this embodiment, a circuit board 70 is provided in the main body 10, and the circuit board 70 has an AC power mode and a DC power mode. In the AC power mode, the power is supplied by an external AC power supply through the power interface on the main body 10, and in the DC power mode, the power is supplied by a battery pack 200 installed on the main body 10 to adapt to different usage scenarios. In this embodiment, at least two battery pack installation cavities 80 are also provided on the main body 10, and the battery pack installation cavity 80 can be located on one side of the installation cavity 101, for example, arranged at the rear lower part or the front and rear left and right of the dust bucket 20. The battery pack 200 is detachably installed in the battery pack installation cavity 80 to provide power for the barrel vacuum cleaner 100, which increases the endurance of the barrel vacuum cleaner 100.

[0060] See also Figure 5 , Figure 6 , Figures 9 to 11As shown, in this embodiment, the dust and gas separation device 30 includes a first baffle 31, a cone 32, a lower shell 33, a filter screen 34 and a filter element 35. The first baffle 31 is in contact with and sealed against the inner wall of the inner barrel 21. For example, the first baffle 31 is a circular structure, and its outer edge is in contact with and sealed against the inner wall of the inner barrel 21. For example, a sealing ring is provided on the outer edge of the first baffle 31, and the sealing ring is deformed under the extrusion of the inner barrel 21 and the first baffle 31 to achieve sealing. The first baffle 31 is provided with a vent hole 301, and the cone 32 is installed at the bottom of the first baffle 31, and the cone The end with a larger diameter of the cone body 321 on the body 32 is connected to the vent hole 301, and the lower shell 33 is installed at the bottom of the cone 32. For example, the lower shell 33 includes a second baffle 331 and a shell 332, the second baffle 331 is connected to the bottom of the cone 32, and the shell 332 is installed at the bottom of the second baffle 331. The filter 34 is arranged around the outside of the cone 32 and is connected to the first baffle 31 and the second baffle 331 of the lower shell 33. The filter element 35 is arranged above the first baffle 31 and covers the second through hole 1012 on the connecting surface 1011. In this embodiment, the dust and gas separation device 30 also includes a top bracket 36. The filter element 35 is, for example, a HEPA assembly, which is installed in the top bracket 36, and the first sealing ring 102 is arranged on the top bracket 36.

[0061] See also Figure 5 , Figure 6 , Figures 9 to 11As shown, in this embodiment, the cone 32 includes a plurality of cone bodies 321 and an air inlet 322. The cone bodies 321 are arranged on the bottom surface of the first partition plate 31 and are connected to the vent hole 301. An air inlet 322 is formed at the top of each cone body 321. The air inlet 322 is connected to the internal chamber of the cone body 321. After the airflow passes through the filter screen 34, it enters the cone body 321 through the air inlet 322 and rotates in the cone body 321, so that the dust particles enter the lower shell 33 through the bottom opening of the cone body 321, so as to filter the airflow again and realize dust and gas separation. Further, in this embodiment, the air inlet 322 is tangent to the inner wall of the cone body 321 to further ensure that the incoming airflow can form a rotating airflow to improve the effect of dust and gas separation. In this embodiment, the first partition 31 can be designed as a layered structure, that is, it includes a first part 311 and a second part 312, the distance between the first part 311 and the bottom surface of the inner barrel 21 is greater than the distance between the second part 312 and the bottom surface of the inner barrel 21, and the bottom surfaces of the first part 311 and the second part 312 are both provided with a plurality of cone bodies 321, so that the plurality of cone bodies 321 are arranged in layers, and the air inlets 322 at the top thereof are arranged in layers to ensure the air volume entering each cone body 321, to ensure that each cone body 321 can play the role of dust and gas separation to the greatest extent, and to ensure its dust and gas filtration efficiency and effect.

[0062] See also Figure 5 , Figure 6 , Figures 9 to 11 As shown, in the present embodiment, a raised structure 302 is circumferentially arranged around each vent hole 301 of the first partition plate 31, and the raised structure 302 extends to the inner space of the cone body 321, which can effectively reduce the amount of dust passing through the vent hole 301 directly through the filter element 35, ensure that the dust is filtered and separated in the cone body 32, extend the life of the filter element 35, and ensure the filtering effect of the dust and gas separation device 30.

[0063] See also Figure 5 , Figure 6 , Figures 9 to 11As shown, in this embodiment, the vacuum motor 60 is started, and the air carrying dust and other debris enters the dust and gas separation device 30 through the air inlet 40, and enters the cone 32 through the filter 34. The filter 34 plays a role in dust and gas separation. The airflow filtered by the filter 34 enters the cone body 321 through the air inlet 322 on the cone 32, and a rotating airflow is formed in the cone body 321. Under the action of centrifugal force, part of the dust enters the lower inner barrel 21 for dust and gas separation again. The airflow after dust and gas separation through the cone body 321 enters through the vent 301, and enters the annular air duct 501 after being filtered by the filter element 35, and dust and gas separation is achieved again. The airflow after multiple dust and gas separations is discharged through the annular air duct 501 and the radial air duct 502 to ensure that the gas discharged from the barrel vacuum cleaner 100 is clean air.

[0064] The present invention proposes a barrel vacuum cleaner 100, which is designed with a double-layer dust barrel structure including an inner barrel 21 and an outer barrel 22, and a soundproof chamber 201 is formed between the inner barrel 21 and the outer barrel 22 to reduce noise. At the same time, a structure of at least three layers of annular air ducts 501 are arranged around the outside of a vacuum motor 60, and one end of a radial air duct 502 for air outlet is close to the annular air duct 501 and is tangent to the outermost annular air duct 501, thereby improving the efficiency of the barrel vacuum cleaner 100 and further reducing the noise of the barrel vacuum cleaner 100. At least two layers of sealing rings are arranged between the air duct assembly 50 and the dust barrel 20, and the noise of the barrel vacuum cleaner 100 is further reduced through the double-layer sealing structure. At the same time, a multi-cone dust and gas separation device 30 is used to achieve dust and gas filtration, thereby improving the filtration efficiency of the barrel vacuum cleaner 100 and ensuring the filtration effect.

[0065] The present invention proposes a barrel vacuum cleaner 100, which has a circuit board 70 designed to be compatible with both AC power mode and DC power mode, so that the barrel vacuum cleaner 100 can use AC power or DC power to adapt to different usage scenarios; two detachable battery packs 200 are designed on the main body 10 to further increase the battery life of the barrel vacuum cleaner 100.

[0066] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

[0067] In the description herein, many specific details, such as examples of components and / or methods, are provided to provide a complete understanding of embodiments of the present invention. However, those skilled in the art will recognize that embodiments of the present invention may be practiced without one or more of the specific details or with other devices, systems, components, methods, components, materials, parts, etc. In other cases, well-known structures, materials, or operations are not specifically shown or described in detail to avoid obscuring aspects of embodiments of the present invention.

[0068] References throughout this specification to "one embodiment," "an embodiment," or "a specific embodiment" mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention, and not necessarily in all embodiments. Thus, various appearances of the phrases "in one embodiment," "in an embodiment," or "in a specific embodiment" in different places throughout this specification do not necessarily refer to the same embodiment. In addition, the particular features, structures, or characteristics of any specific embodiment of the invention may be combined with one or more other embodiments in any suitable manner. It should be understood that other variations and modifications of the embodiments of the invention described and illustrated herein may be possible in light of the teachings herein and are to be considered part of the spirit and scope of the invention.

[0069] It should also be understood that one or more of the elements shown in the figures may also be implemented in a more separate or more integrated manner, or even removed because they are inoperable in certain circumstances or provided because they may be useful depending on the application.

[0070] In addition, unless otherwise explicitly indicated, any marking arrows in the drawings should be regarded as exemplary only and not limiting. In addition, unless otherwise indicated, the term "or" used herein is generally intended to mean "and / or". In the case where the term is not clear because it is anticipated that the ability to separate or combine is provided, the combination of components or steps will also be regarded as indicated.

[0071] As used in the description herein and throughout the claims that follow, "a," "an," and "the" include plural references unless otherwise indicated. Likewise, as used in the description herein and throughout the claims that follow, the meaning of "in" includes "in" and "on," unless otherwise indicated.

[0072] The above description of the illustrated embodiments of the present invention (including the contents described in the Abstract) is not intended to be an exhaustive list or to limit the present invention to the precise form disclosed herein. Although specific embodiments of the present invention and examples of the present invention are described herein for illustrative purposes only, various equivalent modifications are possible within the spirit and scope of the present invention as will be recognized and appreciated by those skilled in the art. As noted, these modifications may be made to the present invention in accordance with the above description of the embodiments described in the present invention, and these modifications will be within the spirit and scope of the present invention.

[0073] Systems and methods have been generally described herein as details that aid in understanding the present invention. In addition, various specific details have been given to provide an overall understanding of embodiments of the present invention. However, those skilled in the relevant art will recognize that embodiments of the present invention may be practiced without one or more of the specific details, or may be practiced using other devices, systems, accessories, methods, components, materials, parts, etc. In other cases, well-known structures, materials, and / or operations are not specifically shown or described in detail to avoid confusion with various aspects of embodiments of the present invention.

[0074] Thus, although the invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the foregoing disclosure, and it should be understood that in some cases, some features of the invention will be employed without the corresponding use of other features without departing from the scope and spirit of the proposed invention. Thus, many modifications may be made to adapt a particular environment or material to the essential scope and spirit of the invention. The invention is not intended to be limited to the specific terms used in the claims below and / or the specific embodiments disclosed as the best mode contemplated for carrying out the invention, but the invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Thus, the scope of the invention will be determined solely by the appended claims.

Claims

1. A barrel type vacuum cleaner, characterized in that: include: A main body, wherein a mounting cavity having an opening is provided in the main body; A dust collecting bucket is detachably mounted in the mounting cavity, the dust collecting bucket comprises an inner bucket and an outer bucket, the inner bucket is mounted in the outer bucket and is separated from at least a portion of the outer bucket to form a soundproof cavity, and the inner bucket is connected to the outer bucket to close the soundproof cavity.

2. The barrel vacuum cleaner according to claim 1, characterized in that: The sound insulation cavity is barrel-shaped.

3. The barrel vacuum cleaner according to claim 2, characterized in that: The inner barrel includes a first barrel portion and a first connecting portion arranged at the barrel mouth of the first barrel portion, and the outer barrel includes a second barrel portion and a second connecting portion arranged at the barrel mouth of the second barrel portion. The first barrel portion and the second barrel portion are separated to form a soundproof cavity, and the first connecting portion is connected to the second connecting portion to close the soundproof cavity.

4. The barrel vacuum cleaner according to claim 1, characterized in that: The height of the dust collecting bucket is H, the height of the sound insulation cavity is h, and h≥3 / 4H.

5. The barrel vacuum cleaner according to claim 1, characterized in that: The inner wall surface of the installation cavity comprises a connecting surface, on which a through hole communicating with the dust collecting bucket is arranged, and between the dust collecting bucket and the connecting surface, multiple layers of sealing rings are arranged, and the innermost layer of the sealing ring is arranged around the through hole.

6. The barrel type vacuum cleaner according to claim 5, characterized in that: The multi-layer sealing ring includes a first sealing ring and a second sealing ring. A dust and gas separation device is also provided in the dust collecting bucket. The first sealing ring is arranged between the dust and gas separation device and the connecting surface, and the second sealing ring is arranged between the cover plate of the dust collecting bucket and the connecting surface.

7. The barrel type vacuum cleaner according to claim 6, characterized in that: The connecting surface is arranged at an angle, and one end of the connecting surface close to the opening is higher than the other end of the connecting surface away from the opening. The height of the end of the first sealing ring close to the opening is higher than the height of the end of the first sealing ring away from the opening, and the height gradually decreases from the end close to the opening to the end away from the opening along the circumferential direction. The second sealing ring is arranged at an angle between the connecting surface and the cover plate.

8. The barrel vacuum cleaner according to claim 5, characterized in that: The multiple layers of sealing rings are all located on the inner side of the barrel opening of the inner barrel.

9. The barrel vacuum cleaner according to claim 5, characterized in that: It also includes an air duct component, which is fixedly connected to the main body and located above the connecting surface. At least three layers of annular air ducts are arranged around the air duct component.

10. The barrel vacuum cleaner according to claim 9, characterized in that: The air duct assembly further comprises a radial air duct, wherein the radial air duct is connected to the outlet of the surrounding annular air duct, and a circuit board is arranged in the radial air duct.

11. The barrel vacuum cleaner according to claim 10, characterized in that: The extending direction of the circuit board is arranged parallel to or inclined with the extending direction of the radial air duct.

12. The barrel type vacuum cleaner according to claim 10, characterized in that: The outlet direction of the radial air duct is opposite to the opening direction of the installation cavity.

13. The barrel vacuum cleaner according to claim 10, characterized in that: The circuit board includes an AC power mode and a DC power mode.

14. The barrel vacuum cleaner according to claim 6, characterized in that: The dust and gas separation device comprises: a partition, the partition being attached to and sealed against the inner wall of the inner barrel, and having a vent hole; A cone is mounted at the bottom of the partition, and an end of the cone with a larger diameter is connected to the vent hole; A lower shell, which is mounted on the bottom of the cone and abuts against the bottom surface of the inner barrel; A filter screen, which is arranged around the outside of the cone and connected to the partition plate and the lower shell; The filter element is arranged above the partition plate and covers the through hole.

15. The barrel vacuum cleaner according to claim 14, characterized in that: The cone comprises: A plurality of cone bodies, wherein the cone bodies are located on the bottom surface of the partition and correspond to the vent holes; An air inlet is formed at the top of the cone body. The air inlet is communicated with the inner chamber of the cone body and is tangent to the inner wall of the cone body.

16. The barrel vacuum cleaner according to claim 15, characterized in that: A convex structure is arranged around the circumference of each vent hole of the partition plate, and the convex structure extends to the inner space of the cone body.

17. The barrel vacuum cleaner according to claim 1, characterized in that: At least two battery pack installation cavities are provided on the main body, wherein the battery pack installation cavity is located at one side of the installation cavity, and a battery pack is detachably installed in the battery pack installation cavity.

18. The barrel vacuum cleaner according to claim 1, characterized in that: An air inlet is also formed on the main body, the direction of the air inlet is opposite to the direction of the opening of the installation cavity, and the air inlet is connected to the internal space of the inner barrel.

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