Self-cleaning dust cylinder assembly and handheld vacuum cleaner having the same

Abstract

The present invention discloses a self-cleaning dust barrel assembly, which includes a dust collection assembly, a filter and a cleaning assembly; the dust collection assembly includes a dust barrel, the upper end of which is provided with an opening, and the lower end of which is provided with a dust suction port; the filter inlet side of the filter is located above the dust suction port, and the filter outlet side is docked with the open end of the dust barrel; the cleaning assembly includes a cleaning brush, which is installed in the dust barrel and cleans the filter as the dust barrel moves; a handheld vacuum cleaner is also disclosed, which includes a vacuum cleaner component, the above-mentioned dust collection assembly, the filter and the cleaning assembly, and the vacuum cleaner component is detachably docked with the open end of the dust barrel. The present invention installs a cleaning brush at the open end of the dust barrel, and the cleaning brush cleans the filter during the movement of the dust barrel, and sweeps the dust, stains and other garbage attached to the filter into the dust barrel, which not only has high cleaning efficiency and convenient operation of the vacuum cleaner filter, but also improves the user experience.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum cleaners, and in particular to a self-cleaning dust cylinder assembly and a handheld vacuum cleaner having the same. Background Art

[0002] With the rapid development of small household appliances technology and the continuous improvement of people's living standards, handheld vacuum cleaners can be used in many places where conventional vacuum cleaners are difficult to use or where targeted cleaning is required. They have gradually become one of the essential appliances in people's daily life.

[0003] In the handheld vacuum cleaners currently on the market, dust, stains and other garbage are filtered by the suction force of the BLDC motor through the dust collection tube / primary small-pore filter (metal mesh / original plastic holes, etc.) / H11-H13 HEPA, leaving the garbage and dust in the dust collection tube, and clean air flows to the BLDC motor and is discharged.

[0004] The filter in the dust collection barrel needs to be taken out and cleaned regularly to ensure the filtering effect of the filter, and then to ensure the working efficiency and dust collection effect of the vacuum cleaner. Most of the filters in the dust collection barrel of traditional handheld vacuum cleaners are not removable, and the filter screen can only be simply cleaned with tools, which is not only troublesome to clean, but also has poor cleaning effect. Although there are currently a few vacuum cleaners with detachable filters, such as the application number 202010266700.0 and the name of a dust barrel with a detachable filter screen for a handheld vacuum cleaner, the method of cleaning after disassembling the filter is not only inefficient and cumbersome to operate, but also the dust, stains and other garbage attached to the filter after disassembly will directly contact the user, greatly reducing the user experience. Therefore, how to improve the cleaning problem of the filter in the dust collection barrel to achieve high cleaning efficiency and convenient operation is a technical problem that technicians in this field need to solve. Summary of the invention

[0005] The object of the present invention is to provide a self-cleaning dust cylinder assembly and a handheld vacuum cleaner having the same, which not only has high cleaning efficiency for the filter and is easy to operate, but also can improve the user experience.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] A self-cleaning dust cylinder assembly, comprising a dust collecting assembly, a filter and a cleaning assembly;

[0008] The dust collecting assembly comprises a dust collecting cylinder, wherein the upper end of the dust collecting cylinder is provided with an opening, and the lower end of the dust collecting cylinder is provided with a dust suction port;

[0009] The filter inlet side of the filter is located above the dust suction port, and the filter outlet side is connected to the open end of the dust collecting cylinder;

[0010] The cleaning assembly comprises a cleaning brush, which is installed in the dust collecting cylinder and cleans the filter as the dust collecting cylinder moves.

[0011] Furthermore, the filter includes a filter mesh assembly and a Hepa assembly, the filter mesh assembly is docked at the open end of the dust collecting cylinder, and the Hepa assembly is fixed in the filter mesh assembly.

[0012] Furthermore, the cleaning assembly also includes a first mounting ring, which is detachably arranged on the inner side of the open end of the dust collecting tube, the cleaning brush is circumferentially arranged along the inner wall of the first mounting ring, and the filter assembly is docked at the top of the first mounting ring.

[0013] Furthermore, the outer wall of the first mounting ring is respectively provided with a positioning strip and a plurality of first clamping blocks, the inner wall of the dust collecting tube is respectively provided with a positioning port and a first clamping port corresponding to the positioning strip and the first clamping block, the positioning strip cooperates with the positioning port, and the first clamping block is clamped with the first clamping port.

[0014] Furthermore, the dust collecting assembly also includes a barrel door and a switch. The dust collecting barrel is provided with a dust discharge port above the dust suction port. The barrel door is hinged on the dust collecting barrel for closing the dust discharge port and is locked by the switch provided on the dust collecting barrel.

[0015] Furthermore, the lower end of the barrel door is hinged to the dust barrel through a rotating shaft, and a first hook portion is provided at the upper end. The dust barrel is provided with a mounting opening above the dust discharge port, and the switch is provided in the mounting opening. A spring is provided between the switch and the top of the mounting opening, and a second hook portion is provided at the lower end of the switch. The second hook portion is hooked with the first hook portion under the action of the spring to lock the barrel door.

[0016] Furthermore, the dust collecting assembly also includes a baffle, the dust suction port extends into the interior of the dust collecting barrel to form a boss, and an insertion seam is formed between the boss and the inner wall of the dust collecting barrel, the baffle is L-shaped, one side of which is inserted in the insertion seam and the other side is located above the dust suction port, and a gap is formed between the baffle and the dust suction port.

[0017] A handheld vacuum cleaner comprises a vacuum cleaner component, the above-mentioned dust collecting assembly, a filter and a cleaning assembly. The vacuum cleaner component is detachably connected to the open end of the dust collecting cylinder, and an air flow channel is formed between the dust collecting port of the dust collecting cylinder, the filter and the vacuum cleaner component.

[0018] Furthermore, the vacuum cleaner component is connected to the dust collecting barrel via a rotating snap-fit ​​structure, the filter assembly includes a second mounting ring and a primary filter, the primary filter is arranged on the second mounting ring, and the filter also includes a pressure ring, after the vacuum cleaner component is snap-fitted and connected to the dust collecting barrel, the second mounting ring is pressed against the top of the first mounting ring via the pressure ring.

[0019] Furthermore, the vacuum cleaner component includes an outer shell, a bracket and a dust collector body, the bracket is fixed in the outer shell, the dust collector body is installed on the bracket, the outer shell and the bracket are provided with exhaust ports, the side walls of the outer shell and the bracket are respectively provided with a second clamping block and a third clamping block, the inner wall of the dust collecting barrel is provided with a second clamping port corresponding to the second clamping block, the inner wall of the second mounting ring is provided with a third clamping port corresponding to the third clamping block, the second clamping port and the third clamping port are both L-shaped, and the second clamping block and the third clamping block are respectively connected with the second clamping port and the third clamping port.

[0020] After adopting the above technical solution, the present invention has the following advantages compared with the background technology:

[0021] 1. The present invention has a cleaning brush installed at the open end of the dust collecting barrel. The cleaning brush cleans the filter during the movement of the dust collecting barrel, and sweeps the dust, stains and other garbage attached to the filter into the dust collecting barrel. Not only is the cleaning efficiency of the vacuum cleaner filter high and the operation is convenient, but also the dust, stains and other garbage attached to the filter can be prevented from directly contacting the user, thereby improving the user experience.

[0022] 2. The cleaning assembly of the present invention is installed in the dust collecting barrel by means of a snap-fitting method, and the vacuum cleaner component and the dust collecting barrel are connected by a rotating snap-fitting structure, so the operation of taking out the filter and reinstalling it after taking out is very convenient.

[0023] 3. The present invention provides a dust discharge port above the dust suction port of the dust collecting barrel. The dust discharge port is closed by a barrel door hinged on the dust collecting barrel, and the barrel door is locked by a switch provided on the dust collecting barrel, so as to facilitate the dumping of dust, sundries and other garbage in the dust collecting barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional schematic diagram of implementation one;

[0025] Figure 2 is a schematic diagram of an exploded view of implementation one;

[0026] Figure 3 A cross-sectional view of a dust collecting tube;

[0027] Figure 4 is a cross-sectional view of implementation one;

[0028] Figure 5 for Figure 4 A partial enlarged view of

[0029] Figure 6 It is a three-dimensional schematic diagram of the filter and the cleaning assembly in the first embodiment;

[0030] Figure 7 for Figure 6 Schematic diagram of the decomposition of

[0031] Figure 8 It is a three-dimensional schematic diagram of embodiment 2;

[0032] Fig. 9 It is an exploded schematic diagram of the second embodiment;

[0033] Fig.10 for Fig. 9 A partial enlarged view of point A in the middle.

[0034] Description of reference numerals:

[0035] The vacuum cleaner component 100, the housing 110, the second block 111, the first recessed portion 1111, the bracket 120, the third block 121, the second recessed portion 1211, the vacuum cleaner body 130, and the exhaust port 140;

[0036] Dust collecting assembly 200, dust collecting cylinder 210, dust suction port 211, dust discharge port 212, boss 213, plug seam 214, mounting port 215, positioning port 216, first bayonet 217, second bayonet 218, first protrusion 219, cylinder door 220, first hooking portion 221, switch 230, spring 231, second hooking portion 232, baffle 240, rotating shaft 250;

[0037] Filter 300, filter screen assembly 310, second mounting ring 311, third bayonet 3111, second protrusion 3112, primary filter screen 312, Hepa assembly 320, pressing ring 330;

[0038] Cleaning assembly 400 , cleaning brush 410 , first mounting ring 420 , positioning bar 421 , first clamping block 422 . DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0040] It should be noted that in the present invention, the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element of the present invention must have a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] Embodiment 1

[0042] Cooperate Figure 1 and Figure 2 As shown, this embodiment discloses a self-cleaning dust cylinder assembly, including a dust collecting assembly 200, a filter 300 and a cleaning assembly 400.

[0043] Cooperate Figures 2 to 5 As shown, the dust collection assembly 200 includes a dust collection barrel 210, the upper end of which is provided with an opening, and the lower end of which is provided with a dust suction port 211. The dust collection assembly 200 also includes a barrel door 220 and a switch 230. The dust collection barrel 210 is provided with a dust discharge port 212 above the dust suction port 211. The barrel door 220 is hinged on the dust collection barrel 210, and is used to close the dust discharge port 212, and is locked by a switch 230 provided on the dust collection barrel 210.

[0044] The dust collecting assembly 200 also includes a baffle 240, and the dust suction port 211 extends into the dust collecting barrel 210 to form a boss 213, and an insertion seam 214 is formed between the boss 213 and the inner wall of the dust collecting barrel 210. The baffle 240 is L-shaped, one side of which is inserted in the insertion seam 214 and the other side is located above the dust suction port 211, and a gap is formed between the baffle 240 and the dust suction port 211. The baffle 240 can block overly large particles from entering the dust collecting barrel 210 to avoid affecting the normal use of the dust collecting assembly 200, and can also normally absorb dust and other debris to prevent dust and other debris from falling from the dust suction port 211.

[0045] The lower end of the barrel door 220 is hinged to the dust collecting barrel 210 through a rotating shaft 250, and a first hooking portion 221 is provided at the upper end. The dust collecting barrel 210 is provided with a mounting port 215 above the dust discharge port 212. The switch 230 is arranged in the mounting port 215. A spring 231 is provided between the switch 230 and the top of the mounting port 215. A second hooking portion 232 is provided at the lower end of the switch 230. The second hooking portion 232 is hooked with the first hooking portion 221 under the action of the spring 231 to lock the barrel door 220. When the barrel door 220 needs to be opened, the switch 230 is pushed upward to release the hooking state of the second hooking portion 232 and the first hooking portion 221, and the barrel door 220 can be opened outward around the rotating shaft 250. Through the setting of the barrel door 220, it is convenient to pour out the dust, debris and other garbage in the dust collecting barrel 210.

[0046] Cooperate Figures 2 to 4 , Figure 6 and Figure 7 As shown, the filter inlet side of the filter 300 is located above the dust suction port 211, and the filter outlet side is connected to the open end of the dust collecting tube 210. The filter 300 includes a filter mesh combination 310 and a Hepa combination 320. The filter mesh combination 310 is connected to the open end of the dust collecting tube 210, and the Hepa combination 320 is fixed in the filter mesh combination 310. The filter mesh combination 310 can filter larger particles of dust and other debris, and the Hepa combination 320 can further filter out small particles of dust mixed in the airflow.

[0047] The cleaning assembly 400 includes a cleaning brush 410, which is installed in the dust collection barrel 210 and cleans the filter 300 as the dust collection barrel 210 moves. The cleaning assembly 400 also includes a first mounting ring 420, which is detachably arranged inside the open end of the dust collection barrel 210, and the cleaning brush 410 is arranged along the inner wall circumference of the first mounting ring 420, and the filter assembly 310 is docked at the top of the first mounting ring 420. When the filter 300 moves outward relative to the cleaning brush 410, the cleaning brush 410 cleans the filter assembly 310 and the Hepa assembly 320, and sweeps the dust, stains and other garbage attached to the filter assembly 310 and the Hepa assembly 320 into the dust collection barrel 210.

[0048] In this embodiment, the outer wall of the first mounting ring 420 is respectively provided with a positioning strip 421 and a plurality of first clamping blocks 422, and the inner wall of the dust collecting tube 210 is respectively provided with a positioning port 216 and a first clamping port 217 corresponding to the positioning strip 421 and the first clamping block 422, the positioning strip 421 cooperates with the positioning port 216, and the first clamping block 422 is clamped with the first clamping port 217.

[0049] Embodiment 2

[0050] Cooperate Figure 2 , Figures 7 to 9 As shown, this embodiment also discloses a handheld vacuum cleaner, including a vacuum cleaner component 100, the above-mentioned dust collecting assembly 200, a filter 300 and a cleaning assembly 400. The vacuum cleaner component 100 can be detachably connected to the open end of the dust collecting cylinder 210, and an air flow channel is formed between the dust collecting port 211 of the dust collecting cylinder, the filter 300 and the vacuum cleaner component 100.

[0051] The vacuum cleaner component 100 is connected to the dust collecting barrel 210 through a rotating snap-fit ​​structure. The filter assembly 310 includes a second mounting ring 311 and a primary filter 312. The primary filter 312 is arranged on the second mounting ring 311. The filter 300 also includes a pressing ring 330. After the vacuum cleaner component 100 is snap-fitted and connected to the dust collecting barrel 210, the second mounting ring 311 is pressed against the top of the first mounting ring 420 through the pressing ring 330.

[0052] Cooperate Figure 3 , Figure 7 , Fig. 9 and Fig.10 As shown, the dust collector component 100 includes a housing 110, a bracket 120 and a dust collecting body 130. The bracket 120 is fixed in the housing 110, and the dust collecting body 130 is installed on the bracket 120. The housing 110 and the bracket 120 are provided with an exhaust port 140. The airflow passes through the dust collecting port 211, the filter 300, the bracket 120 and the housing 110 in sequence and is discharged from the exhaust port 140. The dust collecting body 130 includes components such as a suction motor and a power supply device, which can adopt existing technologies, so in this embodiment, the specific structure of the dust collecting body 130 is not repeated.

[0053] The side walls of the housing 110 and the bracket 120 are respectively provided with a second clamping block 111 and a third clamping block 121, the inner wall of the dust collecting tube 210 is provided with a second clamping port 218 corresponding to the second clamping block 111, the inner wall of the second mounting ring 311 is provided with a third clamping port 3111 corresponding to the third clamping block 121, the second clamping port 218 and the third clamping port 3111 are both L-shaped, and the second clamping block 111 and the third clamping block 121 are respectively engaged with the second clamping port 218 and the third clamping port 3111. The housing 110 and the bracket 120 are both connected by a rotating engaging structure, which is convenient for removing the filter 300 and reinstalling it after removal.

[0054] In this embodiment, a vertical first recessed portion 1111 and a second recessed portion 1211 are formed in the second block 111 and the third block 121, respectively, and the first recessed portion 1111 and the second recessed portion 1211 are smoothly transitioned with the second block 111 and the third block 121. A vertical first protrusion 219 and a second protrusion 3112 are formed in the second bayonet 218 and the third bayonet 3111, and the first protrusion 219 and the second protrusion 3112 are arc-shaped. When the second block 111 and the third block 121 are respectively engaged with the second bayonet 218 and the third bayonet 3111, the first recessed portion 1111 and the second recessed portion 1211 are respectively engaged with the first protrusion 219 and the second protrusion 3112, which can prevent the vacuum cleaner component 100 from being released and separated under the action of a relatively light rotational external force, thereby affecting the normal use of the vacuum cleaner.

[0055] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A self-cleaning dustbin assembly, characterized in that: It includes a dust collection assembly, a filter and a cleaning assembly; The dust collection assembly includes a dust collection cylinder and a baffle, wherein the upper end of the dust collection cylinder is provided with an opening, and the lower end is provided with a dust suction port, one side of the baffle is inserted into the dust collection cylinder, and the other side of the baffle is located above the dust suction port, and a gap is formed between the baffle and the dust suction port; The filter inlet side of the filter is located above the dust suction port, and the filter outlet side is connected to the open end of the dust collecting cylinder; The cleaning assembly comprises a cleaning brush, which is installed in the dust collecting cylinder and cleans the filter as the dust collecting cylinder moves.

2. A self-cleaning dust cylinder assembly as claimed in claim 1, characterized in that: The filter comprises a filter mesh assembly and a Hepa assembly. The filter mesh assembly is connected to the open end of the dust collecting cylinder, and the Hepa assembly is fixed in the filter mesh assembly.

3. A self-cleaning dust cylinder assembly as claimed in claim 2, characterized in that: The cleaning assembly also includes a first mounting ring, which is detachably arranged on the inner side of the open end of the dust collecting tube, the cleaning brush is circumferentially arranged along the inner wall of the first mounting ring, and the filter assembly is docked at the top of the first mounting ring.

4. A self-cleaning dust cylinder assembly as claimed in claim 3, characterized in that: The outer wall of the first mounting ring is respectively provided with a positioning strip and a plurality of first clamping blocks, the inner wall of the dust collecting tube is respectively provided with a positioning port and a first clamping port corresponding to the positioning strip and the first clamping block, the positioning strip cooperates with the positioning port, and the first clamping block is clamped with the first clamping port.

5. A self-cleaning dust cylinder assembly as claimed in claim 1, characterized in that: The dust collecting assembly also includes a barrel door and a switch. The dust collecting barrel is provided with a dust discharge port above the dust suction port. The barrel door is hinged on the dust collecting barrel for closing the dust discharge port and is locked by the switch provided on the dust collecting barrel.

6. A self-cleaning dust cylinder assembly as claimed in claim 5, characterized in that: The lower end of the barrel door is hinged to the dust barrel through a rotating shaft, and a first hook portion is provided at the upper end. The dust barrel is provided with a mounting opening above the dust discharge port. The switch is provided in the mounting opening. A spring is provided between the switch and the top of the mounting opening. A second hook portion is provided at the lower end of the switch. The second hook portion is hooked with the first hook portion under the action of the spring to lock the barrel door.

7. A self-cleaning dust cylinder assembly as claimed in claim 1, characterized in that: The dust suction port extends into the dust collecting tube to form a boss, and an insertion seam is formed between the boss and the inner wall of the dust collecting tube. The baffle is L-shaped, with one side inserted in the insertion seam and the other side located above the dust suction port.

8. A handheld vacuum cleaner, characterized in that: It comprises a vacuum cleaner component and the self-cleaning dust cylinder assembly according to any one of claims 1 to 7, wherein the vacuum cleaner component is detachably connected to the open end of the dust cylinder, and an air flow channel is formed between the dust suction port of the dust cylinder, the filter and the vacuum cleaner component.

9. A handheld vacuum cleaner according to claim 8, characterized in that: The vacuum cleaner component is connected to the dust collecting barrel via a rotating snap-fit ​​structure, the filter assembly includes a second mounting ring and a primary filter, the primary filter is arranged on the second mounting ring, the filter also includes a pressing ring, after the vacuum cleaner component is snap-fitted and connected to the dust collecting barrel, the second mounting ring is pressed against the top of the first mounting ring via the pressing ring.

10. A handheld vacuum cleaner according to claim 9, characterized in that: The vacuum cleaner component includes a shell, a bracket and a dust collection body, the bracket is fixed in the shell, the dust collection body is installed on the bracket, the shell and the bracket are provided with exhaust ports, the side walls of the shell and the bracket are respectively provided with a second clamping block and a third clamping block, the inner wall of the dust collecting barrel is provided with a second clamping port corresponding to the second clamping block, the inner wall of the second mounting ring is provided with a third clamping port corresponding to the third clamping block, the second clamping port and the third clamping port are both L-shaped, and the second clamping block and the third clamping block are respectively clamped with the second clamping port and the third clamping port.

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