Dust collector main machine with filter screen dust scraping function

Abstract

The utility model relates to the technical field of dust collectors, in particular to a dust collector main machine with a filter screen dust scraping function, which comprises a dust collector main body and an air inlet pipe fixedly connected on the dust collector main body, and further comprises a rotating ring rotatably arranged in the dust collector main body, the plurality of scraping plates are uniformly arranged on the rotating ring at equal intervals, and one end of each scraping plate adopts the design that bristles are adhered to one end of the scraping plate; the driving assembly is arranged on the dust collector body and connected with the rotating ring, and in the process that the driving assembly drives the rotating ring to rotate, the driving motor is started to drive the rotating ring to rotate, so that the transmission piece drives the scraping plate to deflect to abut against the filter screen, and then the rotating ring rotates to drive the scraping plate to scrape the filter screen. Meanwhile, the bristles are used for cleaning filter screen holes, so that the filter screen is prevented from being blocked; meanwhile, when the scraper is not used, the scraper can be driven to deflect and separate from the filter screen, so that the normal filtering operation is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum cleaners, in particular to a vacuum cleaner host with a filter screen and dust scraping function. Background Art

[0002] A handheld vacuum cleaner is a portable cleaning device, usually composed of an electric drive device, a dust suction device and a dust storage container. It is compact in design, easy to carry and operate. At the same time, the dust suction device is generally equipped with two layers of different types of filters to improve the cleaning effect. It is common to first use a coarser filter, such as a mesh filter or a grid filter, to capture larger dust and debris to prevent them from entering subsequent components, and then pass through a second layer of finer filters, such as HEPA (high-efficiency particulate air filter) or activated carbon filters, which can capture smaller particles, such as fine dust, pollen and bacteria, to purify the air. And prevent them from re-entering the environment. The first layer of filter needs to directly filter most of the impurities in the air, so in order to prevent it from being blocked and affecting the operation of the device, the existing vacuum cleaners usually set a position along the edge of the filter at the air inlet. Through such a design, when the device inhales air, the fast-flowing air will flow along the edge of the filter, thereby playing a self-cleaning role. However, even with this design, some impurities will still block the holes of the filter. When the holes of the filter are partially blocked, it will affect the air intake of the device body, thereby reducing the self-cleaning efficiency. For this reason, we propose a vacuum cleaner host with a filter scraping function. Utility Model Content

[0003] A technical problem to be solved by the present application is: how to design a vacuum cleaner which can automatically clean the filter screen.

[0004] In order to solve the above technical problems, the embodiment of the present application provides a vacuum cleaner host with a filter screen dust scraping function, including a vacuum cleaner body and an air inlet pipe fixedly connected to the vacuum cleaner body, wherein a filter screen is arranged in the vacuum cleaner body, and further comprising:

[0005] A rotating ring, rotatably arranged in the vacuum cleaner body;

[0006] A plurality of scrapers are evenly and equidistantly arranged on the rotating ring, and one end of the scraper is designed with bristles glued to it;

[0007] The driving assembly is arranged on the vacuum cleaner body and connected to the rotating ring. When the driving assembly drives the rotating ring to rotate, multiple scrapers are driven to deflect relative to the rotating ring and press against the filter screen. The rotating ring is continuously rotated to drive the scrapers to scrape impurities on the filter screen.

[0008] In some embodiments, the driving assembly includes a driving motor fixedly connected to the inner wall of the vacuum cleaner body, the output end of the driving motor is fixedly connected to a toothed disc, and the rotating ring is evenly and equidistantly provided with a plurality of tooth grooves meshing with the toothed disc, and the driving motor is started to drive the rotating ring to rotate;

[0009] A friction ring is rotatably connected to the inner wall of the vacuum cleaner body, and the contact surface between the friction ring and the inner wall of the vacuum cleaner body is designed with frosted material to provide a certain resistance for rotating the friction ring. The friction ring is rotatably connected to the rotating ring, and one end of the scraper is fixedly connected to the shaft 1, and one end of the shaft 1 passes through the rotating ring and is rotatably connected to it, and a transmission member is arranged between the shaft 1 and the friction ring. In the process of rotating the rotating ring, the transmission member is used to drive the shaft 1 and the scraper to rotate relative to the rotating ring until the scraper is tightly against the filter screen, and the rotating ring is continuously rotated to drive the friction ring, the shaft 1, and the scraper to rotate simultaneously;

[0010] An annular protrusion is fixedly connected to the inner wall of the vacuum cleaner body, an annular groove is provided on the friction ring, and one end of the annular protrusion is located in the annular groove.

[0011] In some embodiments, the transmission member includes a shift plate fixedly connected to shaft one, and a limiting groove is provided on the friction ring, one end of the shift plate is located in the limiting groove, and during the initial rotation of the rotating ring, the friction ring is stationary relative to the vacuum cleaner body, and the shift plate is deflected by utilizing the limiting groove, so that the scraper is deflected relative to the rotating ring and pressed tightly against the filter.

[0012] In some embodiments, the scraper adopts a hollow design.

[0013] In some embodiments, a one-way elastic baffle is installed in the air inlet pipe, and air enters the air inlet pipe to push the one-way elastic baffle to deflect for ventilation.

[0014] In some embodiments, a spring sheet is installed on one side of the one-way elastic baffle, a pressure sensor is fixedly connected to the spring sheet, and the pressure sensor is electrically connected to the driving motor.

[0015] The utility model has at least the following beneficial effects:

[0016] By starting the driving motor to drive the rotating ring to rotate, the transmission member drives the scraper to deflect and press against the filter screen first, and then the rotating ring rotates to drive the scraper to scrape the filter screen, and the bristles are used to clean the filter screen holes, thereby preventing the filter screen from being blocked;

[0017] At the same time, when the scraper is not in use, it can be driven to deflect away from the filter screen to avoid affecting the normal filtering operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0019] Figure 2 For this utility model Figure 1 Schematic diagram of the local cross-section structure;

[0020] Figure 3 For this utility model Figure 2 Another structural diagram;

[0021] Figure 4 For this utility model Figure 3 Another structural diagram;

[0022] Figure 5 For this utility model Figure 4 Schematic diagram of the structure of column A area;

[0023] Figure 6 This is a schematic structural diagram of Example 2 of the utility model.

[0024] In the figure: 1-vacuum cleaner body; 11-air inlet pipe; 12-filter; 2-rotating ring; 3-scraper; 4-driving assembly; 42-driving motor; 43-toothed disc; 44-tooth groove; 45-friction ring; 46-axis one; 47-transmission member; 48-annular convex; 49-annular groove; 51-push plate; 52-limiting groove; 53-one-way elastic baffle; 54-spring; 55-pressure sensor. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Example 1

[0027] See also Figure 1-Figure 5 The utility model provides a technical solution: a vacuum cleaner main unit with a filter screen dust scraping function, comprising a vacuum cleaner main body 1 and an air inlet pipe 11 fixedly connected to the vacuum cleaner main body 1, a filter screen 12 is installed in the vacuum cleaner main body 1, and the characteristics include:

[0028] A rotating ring 2 is rotatably arranged in the vacuum cleaner body 1;

[0029] A plurality of scrapers 3 are evenly and equidistantly arranged on the rotating ring 2, and one end of the scraper 3 is designed to have bristles glued to it;

[0030] The driving assembly 4 is arranged on the vacuum cleaner body 1 and connected to the rotating ring 2. When the driving assembly 4 drives the rotating ring 2 to rotate, the plurality of scrapers 3 are driven to deflect relative to the rotating ring 2 and press against the filter 12. The rotating ring 2 is further rotated to drive the scrapers 3 to scrape impurities on the filter 12.

[0031] When in use, the driving motor 42 is started to drive the rotating ring 2 to rotate, so that the transmission member 47 drives the scraper 3 to first deflect and press against the filter screen 12, and then the rotating ring 2 is rotated to drive the scraper 3 to scrape the filter screen 12, and the bristles are used to clean the holes of the filter screen 12, so as to avoid clogging of the filter screen 12;

[0032] At the same time, when the scraper 3 is not in use, it can be driven to deflect and separate from the filter screen 12 to avoid affecting the normal filtering operation.

[0033] The driving assembly 4 includes a driving motor 42 fixedly connected to the inner wall of the vacuum cleaner body 1, a toothed disc 43 is fixedly connected to the output end of the driving motor 42, and a plurality of tooth grooves 44 meshing with the toothed disc 43 are evenly and equidistantly provided on the rotating ring 2. The driving motor 42 is started to drive the toothed disc 43 to rotate, thereby driving the rotating ring 2 to rotate;

[0034] A friction ring 45 is rotatably connected to the inner wall of the vacuum cleaner body 1, and the contact surface between the friction ring 45 and the inner wall of the vacuum cleaner body 1 is designed with frosted material to provide a certain resistance for rotating the friction ring 45. The friction ring 45 is rotatably connected to the rotating ring 2, and one end of the scraper 3 is fixedly connected to a shaft 46, one end of the shaft 46 passes through the rotating ring 2 and is rotatably connected to it through a bearing, and a transmission member 47 is provided between the shaft 46 and the friction ring 45. In the process of rotating the rotating ring 2, the transmission member 47 is used to drive the shaft 46 and the scraper 3 to rotate relative to the rotating ring 2 until the scraper 3 is tightly against the filter screen 12, and the rotating ring 2 is continued to be rotated to drive the friction ring 45, the shaft 46, and the scraper 3 to rotate simultaneously;

[0035] An annular protrusion 48 is fixedly connected to the inner wall of the vacuum cleaner body 1, and an annular groove 49 is formed on the friction ring 45. One end of the annular protrusion 48 is located in the annular groove 49 and is slidably connected to the inner wall thereof to guide and limit the rotation of the friction ring 45.

[0036] The transmission member 47 includes a paddle 51 fixedly connected to the shaft 1 46, and a limiting groove 52 is provided on the friction ring 45, one end of the paddle 51 is located in the limiting groove 52, during the initial rotation of the rotating ring 2, the friction ring 45 is stationary relative to the vacuum cleaner body 1, and the limiting groove 52 is used to paddle the paddle 51 to deflect, so that the scraper 3 is deflected relative to the rotating ring 2 and pressed against the filter 12.

[0037] Scraper 3 adopts hollow design to reduce wind resistance;

[0038] The working principle of this device is as follows: starting the driving motor 42 to rotate forwardly drives the toothed disc 43 to rotate, thereby driving the rotating ring 2 with the tooth groove 44 to rotate. During a period of initial rotation of the rotating ring 2, the friction ring 45 does not initially rotate with the rotating ring 2 due to the certain friction resistance between it and the inner wall of the vacuum cleaner body 1. Therefore, when the rotating ring 2 drives the shaft 1 46 to rotate, the limiting groove 52 is used to block the paddle 51, thereby driving the paddle 51 to rotate to drive the scraper 3 to deflect relative to the rotating ring 2 until one end thereof is tightly against the filter 12, and the paddle 51 is stuck with the limiting groove 52. At this time, the rotating ring 2 continues to rotate, and the paddle 51 is used to push the friction ring 45 to rotate synchronously with the rotating ring 2, while also driving the scraper 3 to scrape the filter 12. Conversely, starting the driving motor 42 in the reverse direction can drive the scraper 3 to separate from the filter 12.

[0039] A one-way elastic baffle 53 is installed in the air inlet pipe 11. Air enters the air inlet pipe 11 and pushes the one-way elastic baffle 53 to deflect for ventilation. Therefore, when the device body is not in use, the one-way elastic baffle 53 can be used to prevent impurities in the vacuum cleaner body 1 from overflowing.

[0040] Example 2

[0041] See also Figure 1-Figure 6 The utility model provides a technical solution: a vacuum cleaner host with a filter screen dust scraping function, embodiment 2 is optimized on the basis of embodiment 1;

[0042] A spring sheet 54 is installed on one side of the one-way elastic baffle 53, and a pressure sensor 55 is fixedly connected to the spring sheet 54. When air enters the air inlet pipe 11, the one-way elastic baffle 53 is pushed to deflect for ventilation. At the same time, the one-way elastic baffle 53 drives the pressure sensor 55 to contact the inner wall of the vacuum cleaner body 1. The pressure sensor 55 is electrically connected to the drive motor 42. When the filter 12 is blocked, the air intake of the air inlet pipe 11 is reduced, thereby reducing the force of the one-way elastic baffle 53 squeezing the pressure sensor 55, thereby starting the drive motor 42 through program control to clean the filter 12, which is more intelligent.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vacuum cleaner main unit with a filter screen and a dust scraping function, comprising a vacuum cleaner main body (1) and an air inlet pipe (11) fixedly connected to the vacuum cleaner main body (1), wherein a filter screen (12) is arranged in the vacuum cleaner main body (1), and characterized in that: Also included are: A rotating ring (2) rotatably arranged in the vacuum cleaner body (1); A plurality of scrapers (3) are evenly and equidistantly arranged on the rotating ring (2), and one end of the scraper (3) is designed to have bristles glued to it; The driving assembly (4) is arranged on the vacuum cleaner body (1) and connected to the rotating ring (2). When the driving assembly (4) drives the rotating ring (2) to rotate, the plurality of scrapers (3) are driven to deflect relative to the rotating ring (2) and to press against the filter screen (12). The rotating ring (2) is further rotated to drive the scrapers (3) to scrape impurities on the filter screen (12).

2. The vacuum cleaner main unit with filter screen dust scraping function according to claim 1, characterized in that: The driving assembly (4) comprises a driving motor (42) fixedly connected to the inner wall of the vacuum cleaner body (1); the output end of the driving motor (42) is fixedly connected to a toothed disc (43); and the rotating ring (2) is evenly and equidistantly provided with a plurality of tooth grooves (44) meshing with the toothed disc (43); the driving motor (42) is started to drive the rotating ring (2) to rotate; A friction ring (45) is rotatably connected to the inner wall of the vacuum cleaner body (1), and the contact surface between the friction ring (45) and the inner wall of the vacuum cleaner body (1) is designed with a frosted material to provide a certain resistance for the rotation of the friction ring (45). The friction ring (45) is rotatably connected to the rotating ring (2), and one end of the scraper (3) is fixedly connected to a shaft (46), one end of the shaft (46) passes through the rotating ring (2) and is rotatably connected thereto, and a transmission member (47) is provided between the shaft (46) and the friction ring (45). In the process of rotating the rotating ring (2), the transmission member (47) is used to drive the shaft (46) and the scraper (3) to rotate relative to the rotating ring (2) until the scraper (3) is tightly against the filter screen (12), and the rotating ring (2) is continued to be rotated to drive the friction ring (45), the shaft (46) and the scraper (3) to rotate simultaneously; An annular protrusion (48) is fixedly connected to the inner wall of the vacuum cleaner body (1), an annular groove (49) is provided on the friction ring (45), and one end of the annular protrusion (48) is located in the annular groove (49).

3. The vacuum cleaner main unit with filter screen dust scraping function according to claim 2, characterized in that: The transmission member (47) comprises a shifting plate (51) fixedly connected to the shaft 1 (46), and a limiting groove (52) is provided on the friction ring (45), one end of the shifting plate (51) is located in the limiting groove (52), and during the initial rotation of the rotating ring (2), the friction ring (45) is stationary relative to the vacuum cleaner body (1), and the shifting plate (51) is deflected by utilizing the limiting groove (52), so that the scraper (3) is deflected relative to the rotating ring (2) and pressed against the filter screen (12).

4. The vacuum cleaner main unit with filter screen dust scraping function according to claim 3, characterized in that: The scraper (3) adopts a hollow design.

5. The vacuum cleaner main unit with filter screen dust scraping function according to claim 4, characterized in that: A one-way elastic baffle (53) is installed in the air inlet pipe (11), and air enters the air inlet pipe (11) to push the one-way elastic baffle (53) to deflect and ventilate.

6. The vacuum cleaner main unit with filter screen dust scraping function according to claim 5, characterized in that: A spring sheet (54) is installed on one side of the one-way elastic baffle (53), a pressure sensor (55) is fixedly connected to the spring sheet (54), and the pressure sensor (55) is electrically connected to the drive motor (42).

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