Automatic cleaning structure for filter screen of dust collector

Abstract

The invention belongs to the technical field of dust collectors, and particularly relates to a dust collector filter screen automatic cleaning structure which comprises a motor front cover, a filter screen arranged in the motor front cover, and a cleaning assembly used for cleaning impurities on the filter screen and arranged in the motor front cover. The cleaning assembly comprises a fixing frame, and the fixing frame is fixedly installed in the motor front cover. The scraping assembly is used for removing impurities on the filter screen, and the scraping assembly is arranged on the filter screen in a sleeving manner; the driving assembly is used for enabling the scraping assembly to move along the filter screen, and the driving assembly is arranged on the fixing frame. By arranging the cleaning assembly, when impurities on the filter screen are cleaned, repeated operation of a user is not needed, the operation steps of the user are simplified, the user experience is improved, and application and popularization are easy.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum cleaners, in particular to an automatic cleaning structure for a filter screen of a vacuum cleaner. Background Art

[0002] A handheld vacuum cleaner is a portable cleaning device mainly used to clean smaller spaces and hard-to-reach areas. It uses an electric exhaust fan to generate suction and negative pressure, sucking in dust and filtering it through a dust filter bag before discharging it, thereby achieving the cleaning function.

[0003] However, existing handheld vacuum cleaners lack a self-cleaning filter in their dust cups. Hair and lint easily become entangled in the filter after use, requiring the user to remove the entire filter for cleaning, a time-consuming and labor-intensive process. While other handheld vacuum cleaners offer a manual cleaning mechanism, this still requires manual cleaning each time. Therefore, an automatic filter cleaning mechanism for vacuum cleaners has been developed. Summary of the Invention

[0004] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0005] A vacuum cleaner filter automatic cleaning structure includes a motor front cover, a filter screen is provided in the motor front cover, and further includes:

[0006] A cleaning component for cleaning impurities on the filter screen, and the cleaning component is arranged in the front cover of the motor;

[0007] The cleaning component comprises:

[0008] A fixing frame, the fixing frame being fixedly mounted in the front cover of the motor;

[0009] A scraping assembly for removing impurities from the filter, wherein the scraping assembly is sleeved on the filter;

[0010] A driving assembly is used to move the scraping assembly along the filter screen, and the driving assembly is arranged on the fixing frame.

[0011] As a preferred embodiment of the automatic cleaning structure of a vacuum cleaner filter according to the present invention, the driving assembly includes:

[0012] A motor, wherein the motor is fixedly mounted in a fixing frame;

[0013] The reducer is fixedly installed in the fixing frame, and the output shaft of the motor is fixedly connected to the input shaft of the reducer.

[0014] As a preferred embodiment of the automatic cleaning structure of a vacuum cleaner filter according to the present invention, the driving assembly further comprises:

[0015] A driving gear, the driving gear being fixedly mounted on the output shaft of the speed reducer;

[0016] The driven gear is rotatably connected to the fixed frame through a bearing, and the driven gear is meshed with the driving gear.

[0017] As a preferred embodiment of the automatic cleaning structure of a vacuum cleaner filter according to the present invention, the driving assembly further comprises:

[0018] a threaded rod, the threaded rod being threadedly connected to the driven gear;

[0019] A limit switch is fixedly installed on the top of the fixing frame above the motor.

[0020] As a preferred embodiment of the automatic cleaning structure of a vacuum cleaner filter according to the present invention, the driving assembly further comprises:

[0021] A tilt lever shaft is located on the fixed frame above the driven gear and is rotatably connected to the tilt lever shaft via a bearing;

[0022] The tilting rod is fixedly mounted on the tilting rod rotating shaft, and the length direction of the tilting rod and the threaded rod are the same, and one end of the tilting rod can contact the limit switch.

[0023] As a preferred embodiment of the automatic cleaning structure of a vacuum cleaner filter according to the present invention, the driving assembly further comprises:

[0024] A travel ejector block, the travel ejector block being fixedly mounted on one end of the threaded rod and being slidably connected between the tilting rod and the fixing frame;

[0025] A protrusion is provided at the other end of the tilting rod, and the protrusion can contact the stroke top block.

[0026] As a preferred solution of the automatic cleaning structure of the vacuum cleaner filter screen described in the present invention, the central hole of the driven gear is provided with a rib, and the rib is threadedly connected to the threaded rod.

[0027] As a preferred embodiment of the automatic cleaning structure of a vacuum cleaner filter according to the present invention, the scraping assembly includes:

[0028] An apron bracket is fixedly mounted on the other end of the threaded rod, and the apron bracket is slidably connected to the filter screen;

[0029] The dust scraping leather ring is fixedly installed on one side of the leather ring bracket, and the dust scraping leather ring is slidably connected to the filter screen.

[0030] Compared with existing technologies:

[0031] By setting up a cleaning component, the user does not need to repeatedly operate when cleaning impurities on the filter, which simplifies the user operation steps, improves the user experience, and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a front view schematic diagram of the overall structure of the present invention;

[0033] Figure 2 It is a front view schematic diagram of the cleaning component of the present invention;

[0034] Figure 3 A rear view schematic diagram of the cleaning assembly of the present invention;

[0035] Figure 4 It is a cross-sectional schematic diagram of the driven gear and the threaded rod of the present invention;

[0036] Figure 5 A rear view schematic diagram of the drive assembly structure of the present invention;

[0037] Figure 6 The second schematic diagram of the rear view of the drive assembly structure of the present invention;

[0038] Figure 7 This is a front view schematic diagram of the drive assembly structure of the present invention;

[0039] Figure 8 This is a front view schematic diagram of the cleaning component of the present invention;

[0040] Figure 9 This is a rear view schematic diagram of the cleaning component of the present invention.

[0041] In the figure: motor front cover 10, filter 11, fixing bracket 20, motor 30, reducer 31, driving gear 32, driven gear 33, rib 331, threaded rod 34, limit switch 35, tilting lever shaft 36, tilting lever 37, protrusion 371, travel top block 38, leather ring bracket 40, and scraping leather ring 41. DETAILED DESCRIPTION

[0042] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0043] The present invention provides a vacuum cleaner filter automatic cleaning structure, please refer to Figures 1-9 , including a motor front cover 10, wherein a filter screen 11 is provided in the motor front cover 10;

[0044] It also includes: a cleaning component for cleaning impurities on the filter 11, and the cleaning component is arranged in the motor front cover 10;

[0045] The cleaning assembly includes: a fixing frame 20, a scraping assembly for removing impurities on the filter screen 11, and a driving assembly for moving the scraping assembly along the filter screen 11;

[0046] The fixing frame 20 is fixedly installed in the motor front cover 10 , the scraping assembly is sleeved on the filter 11 , and the driving assembly is arranged on the fixing frame 20 .

[0047] The drive assembly includes: a motor 30, a reducer 31, a driving gear 32, a driven gear 33, a rib 331, a threaded rod 34, a limit switch 35, a tilting rod shaft 36, a tilting rod 37, a protrusion 371, and a travel top block 38;

[0048] The motor 30 is fixedly mounted in the fixing frame 20, the reducer 31 is fixedly mounted in the fixing frame 20, and the output shaft of the motor 30 is fixedly connected to the input shaft of the reducer 31, the driving gear 32 is fixedly mounted on the output shaft of the reducer 31, the driven gear 33 is rotatably connected to the fixing frame 20 through a bearing, and the driven gear 33 and the driving gear 32 are meshed and connected, the threaded rod 34 is threadedly connected to the driven gear 33, a limit switch 35 is fixedly mounted on the top of the fixing frame 20 above the motor 30, and a tilting rod shaft 36 is rotatably connected to the fixing frame 20 above the driven gear 33 through a bearing, and the tilting rod 37 is fixed It is fixedly mounted on the tilt rod rotating shaft 36, and the tilt rod 37 and the threaded rod 34 have the same length direction. One end of the tilt rod 37 can contact the limit switch 35. The travel top block 38 is fixedly mounted on one end of the threaded rod 34, and the travel top block 38 is slidably connected between the tilt rod 37 and the fixed frame 20. The other end of the tilt rod 37 is provided with a protrusion 371, and the protrusion 371 can contact the travel top block 38. The center hole of the driven gear 33 is provided with a rib 331, and the rib 331 is threadedly connected to the threaded rod 34; wherein, hollow tubes are fixedly mounted on both sides of the driven gear 33, and a group of hollow tubes are rotatably connected to the fixed frame 20 through bearings.

[0049] The scraping assembly includes: an apron bracket 40 and a scraping apron 41;

[0050] The other end of the threaded rod 34 is fixedly mounted with an apron bracket 40 which is slidably connected to the filter screen 11 . A dust scraping apron 41 is fixedly mounted on one side of the apron bracket 40 which is slidably connected to the filter screen 11 .

[0051] During specific use, the operating steps of those skilled in the art are as follows:

[0052] When the user activates the scraping function, the motor runs, decelerating through the reducer, causing the drive gear installed at the output end of the reducer to rotate slowly. The drive gear drives the driven gear to rotate, and the threaded rod passes through the center hole of the driven gear. The driven gear center hole has a rib that mates with the thread on the threaded rod. When the drive gear rotates, the threaded rod moves downward through the threaded transmission, and the far end of the threaded rod is fixed and moves synchronously with the apron bracket. The apron bracket and the scraping apron are rubberized together for a second time. When the threaded rod reaches the farthest position, the travel block at the end of the threaded rod will hit the bottom protrusion of the tilt rod, and the tilt rod will rotate around the tilt rod axis. The top of the tilt rod will hit the limit switch, which sends a signal. The MCU controls the motor to reverse, and then reverses the drive to return the scraping apron to its initial state.

[0053] Although the present invention has been described above with reference to embodiments, various modifications may be made thereto and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as there are no structural conflicts, the various features of the embodiments disclosed herein may be combined with each other in any manner, and the omission of an exhaustive description of such combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A vacuum cleaner filter automatic cleaning structure, comprising a motor front cover (10), wherein a filter (11) is provided in the motor front cover (10), characterized in that: Also includes: A cleaning component for cleaning impurities on the filter (11), wherein the cleaning component is arranged in the motor front cover (10); The cleaning component comprises: A fixing frame (20), wherein the fixing frame (20) is fixedly mounted in the motor front cover (10); A scraping assembly for removing impurities on the filter screen (11), wherein the scraping assembly is sleeved on the filter screen (11); A driving assembly is used to move the scraping assembly along the filter screen (11), and the driving assembly is arranged on a fixing frame (20).

2. The automatic cleaning structure for a vacuum cleaner filter according to claim 1, characterized in that: The drive assembly includes: a motor (30), wherein the motor (30) is fixedly mounted in the fixing frame (20); A reducer (31) is fixedly installed in the fixing frame (20), and the output shaft of the motor (30) is fixedly connected to the input shaft of the reducer (31).

3. The automatic cleaning structure for a vacuum cleaner filter according to claim 2, characterized in that: The drive assembly further includes: A driving gear (32), wherein the driving gear (32) is fixedly mounted on an output shaft of the speed reducer (31); The driven gear (33) is rotatably connected to the fixed frame (20) via a bearing, and the driven gear (33) is meshedly connected with the driving gear (32).

4. The automatic cleaning structure for a vacuum cleaner filter according to claim 3, characterized in that: The drive assembly further includes: a threaded rod (34) threadedly connected to the driven gear (33); A limit switch (35) is fixedly installed on the top of the fixing frame (20) above the motor (30).

5. The automatic cleaning structure for a vacuum cleaner filter according to claim 4, characterized in that: The drive assembly further includes: A tilt lever shaft (36) is located on the fixing frame (20) above the driven gear (33) and is rotatably connected to the tilt lever shaft (36) via a bearing; A tilting rod (37) is fixedly mounted on the tilting rod rotating shaft (36), and the tilting rod (37) and the threaded rod (34) have the same length direction, and one end of the tilting rod (37) can contact the limit switch (35).

6. The automatic cleaning structure for a vacuum cleaner filter according to claim 5, characterized in that: The drive assembly further includes: A travel top block (38), wherein the travel top block (38) is fixedly mounted on one end of the threaded rod (34), and the travel top block (38) is slidably connected between the tilting rod (37) and the fixed frame (20); A protrusion (371) is provided at the other end of the tilting rod (37), and the protrusion (371) can contact the stroke top block (38).

7. The automatic cleaning structure for a vacuum cleaner filter according to claim 6, characterized in that: A convex rib (331) is provided in the central hole of the driven gear (33), and the convex rib (331) is threadedly connected to the threaded rod (34).

8. The automatic cleaning structure for a vacuum cleaner filter according to claim 4, characterized in that: The scraping assembly comprises: An apron bracket (40), the other end of the threaded rod (34) is fixedly mounted with the apron bracket (40), and the apron bracket (40) is slidably connected to the filter screen (11); A dust scraping leather ring (41) is fixedly mounted on one side of the leather ring bracket (40), and the dust scraping leather ring (41) is slidably connected to the filter screen (11).

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