Automatically adjusting roller brush device for vacuum cleaner

Abstract

The present invention relates to the technical field of vacuum cleaners, and specifically to an automatically adjusting roller brush device for a vacuum cleaner, comprising a dust suction disc body and a digital display control panel, wherein the dust suction disc body is disc-shaped, and the lower side of the dust suction disc body is provided with three or more roller brush structures evenly distributed with its axis as the center, and a dust suction structure is provided between two adjacent roller brush structures, and one end of an operating handle rod is provided on the upper side of the dust suction disc body, and the other end of the operating handle rod is connected to a dust suction joint. Through the mutual coordination and cooperation between the dust suction disc body, the roller brush structure, the rotating connecting head structure, the operating handle rod and the dust suction structure, the cleaning range of the roller brush can be adjusted, and in addition, the rotating roller brush under a circular area can be realized under the self-driven rotation of the roller brush cover, so that when the dust suction disc body moves in a certain direction, multiple roller brushes can be achieved without omission, thereby greatly improving the cleaning effect.

Description

Technical Field

[0001] The present invention relates to the technical field of vacuum cleaners, and in particular to an automatic adjustment roller brush device for vacuum cleaners. Background Art

[0002] Vacuum cleaners can be categorized by structure as vertical, horizontal, and portable. The working principle is that the motor rotates at high speed, drawing air in through the suction port, creating a certain vacuum in the dust box. Dust then passes through the floor brush, connecting pipe, handle, hose, and main suction pipe into the dust filter bag in the dust box, where it is retained. Most vacuum cleaners are equipped with a roller brush for cleaning floors and carpets.

[0003] A roller brush device for a vacuum cleaner with announcement number CN104939748B includes: an upper motor cover; a lower shell, which includes a lower motor cover and a right cover plate, the right cover plate is provided with an axial hole and a through hole, and a left bearing is fixed in the through hole; a left cover plate; a drive motor, a drive end of which is fixed with a tooth portion; and a drive wheel, one end of which is fixed with a patch.

[0004] The announcement number CN217338426U is a vacuum cleaner roller brush structure that is easy to disassemble, including a fixed seat, a telescopic mechanism is provided at the bottom of the fixed seat, a positioning mounting seat is fixedly installed at the bottom of the telescopic mechanism, and a rotating rod positioning mechanism is fixedly installed at the top of the positioning mounting seat.

[0005] However, the cleaning range of the roller brush of the current vacuum cleaner is mostly fixed, and the roller brush cannot be adjusted according to the needs of the cleaning environment. Summary of the Invention

[0006] (1) Technical problems solved

[0007] The object of the present invention is to provide an automatically adjusting roller brush device for a vacuum cleaner in order to solve the above problems.

[0008] (2) Technical solution

[0009] To achieve the above objectives, the present invention provides the following technical solutions:

[0010] The present invention provides an automatically adjustable roller brush device for a vacuum cleaner, comprising a dust collection disc and a digital display control panel, wherein the dust collection disc is disc-shaped, and three or more roller brush structures are evenly distributed around its axis on the lower side of the dust collection disc, and a dust collection structure is provided between two adjacent roller brush structures, and one end of an operating handle rod is provided on the upper side of the dust collection disc, and the other end of the operating handle rod is connected to a dust collection joint, and one end of the operating handle rod connected to the dust collection disc is provided with a rotating connector structure for realizing mutual communication between the dust collection joint and the dust collection structure and for realizing hinged and horizontal rotation connection between the operating handle rod and the dust collection disc;

[0011] The roller brush structure includes a motor, which is fixed on the dust collector body through a fixed seat. The output shaft end of the motor is connected to a plug-in shaft, and a roller brush sleeve is detachably provided on the plug-in shaft. A linear drive structure for driving the roller brush sleeve to move along its axial direction is provided in the plug-in shaft. The output end of the digital display control panel is electrically connected to the input end of the motor.

[0012] Furthermore, the bottom side of the dust collector disc body is provided with a roller brush groove for rotating in a one-to-one corresponding manner with the roller brush sleeve, an inner shaft rod is fixedly provided at the center position of the roller brush sleeve, and a plug-in channel for sliding connection with the plug-in shaft is opened at the central axis of the inner shaft rod, and the linear drive structure includes an electric telescopic rod fixedly arranged in the inner shaft rod, and the push rod head end of the electric telescopic rod and the connecting channel opened at the end of the inner shaft rod are cooperated and connected with each other, and an adjustment groove is opened at one end of the inner shaft rod close to the connecting channel, and the end of the inner shaft rod located at the adjustment groove is threadedly connected with a fixing bolt for tightening and fixing the push rod head end of the electric telescopic rod in the connecting channel, and the output end of the digital display control panel is electrically connected to the input end of the electric telescopic rod.

[0013] Furthermore, the dust collection structure includes a dust collection head, the cross-section of the dust collection head is arc-shaped, and a cleaning brush is provided on one side of the bottom of the dust collection head. Each dust collection head is connected to one end of a dust collection tube, and the other end of the dust collection tube is connected to each other by a rotating connector structure.

[0014] Furthermore, the outer side of the operating handle rod is provided with an outer sleeve, and the outer side of the outer sleeve is provided with a plurality of anti-slip rings evenly distributed along its axial direction. The digital display control panel is provided on the operating handle rod.

[0015] Furthermore, the rotating connector structure includes one end of a support tube fixedly arranged on the dust collection disc body, and the other end of the support tube is rotatably connected to a rotating seat on the outside through a sealed bearing, a U-shaped groove is provided on the upper side of the rotating seat, and a rotating column is rotatably arranged in the U-shaped groove, and a ventilation channel is provided in the rotating column and the operating handle rod, one end of the ventilation channel is connected to the dust collection joint, and the other end of the ventilation channel is open and the opening is connected to the rotating seat through a telescopic connecting tube, a connecting air hole is provided on the rotating seat for connecting the telescopic connecting tube and the support tube to each other, and a sealing retaining ring is provided on the bottom side of the rotating seat for movably sealingly abutting against the outer wall of the support tube, and the support tube and the dust collection duct are connected to each other.

[0016] Furthermore, the lower side of the dust collector body is provided with more than three universal movable wheels along its circumferential direction, wherein the bottom side height position of the dust collector head is higher than the bottom side height position of the universal movable wheels, and the bottom side height position of the universal movable wheels is higher than the bottom side height position of the roller brush cover.

[0017] Furthermore, it also includes a cleaning seat structure for cleaning the roller brush cover, the cleaning seat structure includes a cleaning box, the cleaning box has a cylindrical shape, the interior of the cleaning box is hollow and the upper side is open, the outer side of the dust collection disc is provided with an outer edge plate for cooperating with the upper side opening of the cleaning box, and the cleaning seat structure is provided with a brushing structure for brushing the roller brush cover.

[0018] Furthermore, the brushing structure includes a central support column, and a cleaning seat cylinder is provided on the outside of the central support column, which is evenly distributed with it as the center and corresponds one to one with the roller brush sleeve. The cross-section of the cleaning seat cylinder is arc-shaped, and a liquid groove is provided in the middle position of the bottom side of the cleaning seat cylinder. Several cleaning brushes are provided on the inner wall of the cleaning seat cylinder, and one end of the cleaning seat cylinder is fixedly connected to the inner wall of the cleaning box.

[0019] Furthermore, a liquid spray pipe for spraying water toward the interior of each cleaning seat cylinder is provided on one side of the upper part, one end of the liquid spray pipe is connected to the central support column, and a liquid inlet pipe is connected to one side of the bottom of the cleaning box. The central support column and the bottom surface of the cleaning box are formed with a liquid guide channel for connecting the liquid inlet pipe and the liquid spray pipe to each other, and a liquid drain pipe is connected to one side of the bottom of the cleaning box for discharging the liquid inside it.

[0020] Furthermore, the lower side of the outer edge plate is formed with more than three evenly distributed triangular clamping platforms along its edge, the upper edge of the cleaning box is provided with triangular clamping grooves corresponding one to one with the triangular clamping platforms, and the lower side protrusion of the outer edge plate is provided with an annular embedded ring for positioning and matching with the inner side of the upper opening of the cleaning box. When the triangular clamping platforms and the triangular clamping grooves are matched one to one, the roller brush cover and the cleaning seat cylinder are matched one to one.

[0021] (3) Beneficial effects

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. Through the mutual coordination and cooperation among the dust collecting disc, roller brush structure, rotating connector structure, operating handle and dust collecting structure, the cleaning range of the roller brush can be adjusted. In addition, the roller brush can be rotated in a circular area under the self-driven rotation of the roller brush cover, so that when the dust collecting disc moves in a certain direction, multiple roller brushes are not missed, which greatly improves the cleaning effect.

[0024] 2. The rotating connector structure has three functions. The first function is to realize the hinged connection between the dust collector body and the operating handle rod. The second function is to realize the horizontal rotation support of the dust collector body on the ground. The third function is to realize the mutual communication between the dust collection structure and the dust collection connector in the above two cases.

[0025] 3. The cleaning seat structure can clean the roller brush cover, and when the roller brush cover is rotating in the cleaning seat cylinder, the cleaning brush and the spray pipe cooperate to clean all impurities on the outside of the roller brush cover;

[0026] 4. The cleaning brush can sweep the impurities on the ground, so that when the vacuum head absorbs dust and impurities, the impurity particles can be uniformly located at the mouth of the vacuum head, achieving a better vacuuming effect;

[0027] 5. The roller brush structure and the dust suction structure are arranged at intervals and cross-arranged with each other, so that while the roller brush structure is cleaning, the dust suction structure can also absorb and clean dust and impurities, greatly improving the cleaning effect of the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0030] Figure 2 This invention Figure 1 Schematic diagram of the three-dimensional structure;

[0031] Figure 3 This invention Figure 2 A schematic diagram of the partially enlarged structure at point B;

[0032] Figure 4 This invention Figure 1 AA cross-sectional structural diagram;

[0033] Figure 5 This invention Figure 4 A schematic diagram of the partially enlarged structure at point C;

[0034] Figure 6 This invention Figure 4 A schematic diagram of the local enlarged structure at D;

[0035] Figure 7 This invention Figure 1 A schematic diagram of the three-dimensional structure in another direction;

[0036] Figure 8 This invention Figure 7 Schematic diagram of the local enlarged structure at E;

[0037] Figure 9It is a schematic diagram of the cross-sectional structure of the roller brush structure of the present invention.

[0038] The accompanying drawings are as follows: 1. Dust collector body; 101. Outer plate; 102. Annular ring; 103. Triangular card table; 104. Roller brush groove; 105. Universal moving wheel; 2. Roller brush structure; 201. Inner shaft; 202. Roller brush sleeve; 203. Plug-in shaft; 204. Guide strip; 205. Guide groove; 206. Plug-in channel; 207. Adjustment groove; 208. Electric telescopic rod; 209. Connecting channel; 210. Fastening bolt; 211. Motor; 212. Fixed seat; 3. Rotating connector structure; 301. Rotating seat; 302. U-shaped groove; 303. Rotating column; 304. Sealing ring; 305. Telescopic connecting pipe ; 306, connecting air hole; 307, sealing bearing; 308, ventilation channel; 309, support tube; 4, operating handle rod; 401, outer cover pad; 402, anti-slip ring; 403, dust suction joint; 5, cleaning seat structure; 501, cleaning box; 502, drain pipe; 503, liquid inlet pipe; 504, cleaning seat cylinder; 505, liquid trough; 506, cleaning brush; 507, liquid spray pipe; 508, filter screen plate; 509, screening hole slot; 510, central support column; 511, liquid guide channel; 512, triangular card slot; 6, dust suction structure; 601, dust suction head; 602, dust suction duct; 603, cleaning brush; 7, digital display control panel. DETAILED DESCRIPTION

[0039] To make the purpose, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0040] See also Figures 1-9 As shown, the present invention provides an automatically adjustable roller brush device for a vacuum cleaner, comprising a dust collection disc 1 and a digital display control panel 7. The dust collection disc 1 is disc-shaped, and the lower side of the dust collection disc 1 is provided with three or more roller brush structures 2 evenly distributed with its axis as the center, and a dust collection structure 6 is provided between two adjacent roller brush structures 2. In actual application, when the roller brush structure 2 cleans the floor, the dust and impurities generated during the cleaning process can be absorbed and processed by the dust collection structure 6. One end of an operating handle rod 4 is provided on the upper side of the dust collection disc 1, and the other end of the operating handle rod 4 is connected to a dust collection joint 403. The end of the operating handle rod 4 connected to the dust collection disc 1 is provided with a rotating connector structure 3 for realizing mutual communication between the dust collection joint 403 and the dust collection structure 6 and for realizing hinged and horizontal rotation connection between the operating handle rod 4 and the dust collection disc 1.

[0041] See the instructions attached Figure 4 、 Figure 6 and Figure 9 As shown, the roller brush structure 2 includes a motor 211, which is fixed on the dust collector body 1 through a fixed seat 212. The output shaft end of the motor 211 is connected to the plug-in shaft 203, and the roller brush sleeve 202 is detachably provided on the plug-in shaft 203. A linear drive structure for driving the roller brush sleeve 202 to move along its axial direction is provided in the plug-in shaft 203, and the output end of the digital display control panel 7 is electrically connected to the input end of the motor 211. The bottom side of the dust collector body 1 is provided with a roller brush groove 104 for rotating in a one-to-one corresponding manner with the roller brush sleeve 202. An inner shaft rod 201 is fixedly provided at the center position of the roller brush sleeve 202. A plug-in channel 206 for slidingly connecting with the plug-in shaft 203 is opened at the central axis of the inner shaft rod 201. The linear drive structure includes an electric telescopic rod 208 fixedly arranged in the inner shaft rod 201, and the push rod head end of the electric telescopic rod 208 is cooperated with the connecting channel 209 opened at the end of the inner shaft rod 201 to be connected with each other. An adjustment groove 207 is opened at one end of the inner shaft rod 201 close to the connecting channel 209. The end of the inner shaft rod 201 located at the adjustment groove 207 is threadedly connected with a tightening bolt 210 for tightening and fixing the push rod head end of the electric telescopic rod 208 in the connecting channel 209. The output end of the digital display control panel 7 is electrically connected to the input end of the electric telescopic rod 208. In actual application, when disassembling the roller brush sleeve 202, the fixing bolt 210 is loosened to abut the push rod head end of the electric telescopic rod 208, so that the inner shaft rod 201 can slide axially relative to the plug-in shaft 203, so that the inner shaft rod 201 and the roller brush sleeve 202 can be disassembled and separated from the inner shaft rod 201, wherein two or more guide grooves 205 are provided on the inner side wall of the plug-in channel 206, and the extension direction of the guide groove 205 is consistent with the axial direction of the plug-in shaft 203, and the outer side wall of the plug-in shaft 203 is protruded with a guide bar 204 for cooperating with the guide groove 205 for guiding sliding, wherein the guide bar 204 and the guide groove 205 cooperate to guide the inner shaft rod 201 along the axial direction of the plug-in shaft 203, and also to support the torque of the plug-in shaft 203 for the inner shaft rod 201 to rotate axially.

[0042] See the instructions attached Figure 2 、 Figure 5 、 Figure 7 and Figure 8As shown, the dust collection structure 6 includes a dust collection head 601 with an arc-shaped cross-section. A cleaning brush 603 is provided on one side of the bottom of the dust collection head 601. Each dust collection head 601 is connected to one end of a dust collection duct 602, and the other end of the dust collection duct 602 is connected to each other by a rotating connector structure 3. Through this specific structural design, the cleaning brush 603 can sweep impurities on the ground, so that when the dust collection head 601 absorbs dust and impurities, the impurity particles can be uniformly located at the mouth of the dust collection head 601, achieving a better dust collection effect.

[0043] An outer sleeve 401 is provided on the outer side of the operating handle rod 4 , and a plurality of anti-slip rings 402 are evenly distributed along the axial direction of the outer sleeve 401 . The digital display control panel 7 is provided on the operating handle rod 4 .

[0044] See the instructions attached Figure 2 、 Figure 4 and Figure 5 As shown, the rotating connector structure 3 includes a support tube 309, one end of which is fixedly provided on the dust collection disc body 1, and the other end of the support tube 309 is rotatably connected to the rotating seat 301 through a sealed bearing 307. A U-shaped groove 302 is provided on the upper side of the rotating seat 301, and a rotating column 303 is rotatably provided in the U-shaped groove 302. A ventilation channel 308 is provided in the rotating column 303 and the operating handle rod 4, and one end of the ventilation channel 308 is communicated with the dust collection joint 403. The other end of the ventilation channel 308 is open and the opening is connected to the rotating seat 301 through a telescopic connecting tube 305. A connecting air hole 306 for communicating between the telescopic connecting tube 305 and the support tube 309 is provided on the rotating seat 301. A sealing retaining ring 304 for movably sealingly abutting against the outer wall of the support tube 309 is provided on the bottom side of the rotating seat 301, and the support tube 309 is connected to the dust collection duct 602. In actual application, the rotating connecting head structure 3 has three functions. The first function is to realize the hinged connection between the dust collector body 1 and the operating handle rod 4. The second function is to realize the horizontal rotation of the dust collector body 1 on the ground. The third function is to realize the mutual connection between the dust collection structure 6 and the dust collection connector 403 in the above two cases.

[0045] More than three universal movable wheels 105 are arranged on the lower side of the dust collector body 1 along its circumferential direction, wherein the bottom side height position of the dust collector head 601 is higher than the bottom side height position of the universal movable wheel 105, and the bottom side height position of the universal movable wheel 105 is higher than the bottom side height position of the roller brush cover 202.

[0046] The automatic adjustment roller brush device for a vacuum cleaner further comprises a cleaning seat structure 5 for cleaning the roller brush sleeve 202. The cleaning seat structure 5 comprises a cleaning box 501. The cleaning box 501 is cylindrical in shape, hollow in interior and open at the top. An outer edge plate 101 is provided on the outside of the dust collector body 1 for cooperating with the upper opening of the cleaning box 501. A scrubbing structure for scrubbing the roller brush sleeve 202 is provided in the cleaning seat structure 5. The scrubbing structure comprises a central support column 510. A cleaning seat cylinder 504 is provided on the outside of the central support column 510, evenly distributed around the central support column 510 and corresponding to the roller brush sleeve 202. The cross-section of the cleaning seat cylinder 504 is arc-shaped. A liquid passage 505 is provided at the middle of the bottom side of the cleaning seat cylinder 504. A plurality of cleaning brushes 506 are provided on the inner side wall of the cleaning seat cylinder 504. One end of the cleaning seat cylinder 504 is fixedly connected to the inner side wall of the cleaning box 501. A liquid spray pipe 507 for spraying water toward the interior is provided on one side of the upper part of each cleaning seat cylinder 504, and one end of the liquid spray pipe 507 is connected to the central support column 510. A liquid inlet pipe 503 is connected to one side of the bottom of the cleaning box 501. The central support column 510 and the inner bottom surface of the cleaning box 501 are formed with a liquid guide channel 511 for connecting the liquid inlet pipe 503 and the liquid spray pipe 507 to each other. A liquid discharge pipe 502 is connected to one side of the bottom of the cleaning box 501 for discharging the liquid therein. The lower side of the outer edge plate 101 is formed with more than three evenly distributed triangular card platforms 103 along its edge, and the upper edge of the cleaning box 501 is provided with a triangular card groove 512 corresponding one to one with the triangular card platform 103. The lower side protrusion of the outer edge plate 101 is provided with an annular insert ring 102 for positioning and fitting with the inner side of the upper opening of the cleaning box 501. When the triangular card platform 103 and the triangular card groove 512 are connected one-to-one, the roller brush cover 202 is connected one-to-one with the cleaning seat cylinder 504.

[0047] Working principle and technical effects of the present invention:

[0048] The dust collecting disc 1 is pushed and moved on the ground by holding the operating handle rod 4. During the dust collecting process, the operating handle rod 4 is hinged to the dust collecting disc 1 through the rotating connecting head structure 3, so that the dust collecting disc 1 can be pushed and moved from different operating angles. When the roller brush cover 202 of the roller brush structure 2 contacts the ground, the output shaft of the motor 211 rotates to drive the plug-in shaft 203 to rotate, and the plug-in shaft 203 rotates to drive the roller brush cover 202 on its outer side to rotate, so that the roller brush cover 202 can roll on the ground when it rotates, and due to the friction between the roller brush cover 202 and the ground, the friction force can be used to push the dust collecting disc 1 to rotate horizontally relative to the rotating connecting head structure 3, thereby realizing a circular area of ​​the roller brush, and at this time, the dust collecting structure 6 can play a role in dust collection. In addition, the electric telescopic rod 208 drives the roller brush cover 202 along the inner shaft rod 20 When the axial adjustment movement is performed, the rolling brush range of the rolling brush sleeve 202 can be adjusted. During the process of the rolling brush suction, the dust suction disc body 1 is placed in the cleaning box 501 of the cleaning seat structure 5, and the rolling brush sleeves 202 are embedded in the cleaning seat cylinder 504 one by one. At this time, the motor 211 drives the rolling brush sleeve 202 to rotate again. During the rotation of the rolling brush sleeve 202 in the cleaning seat cylinder 504, the cleaning brush 506 and the liquid spray pipe 507 cooperate to clean the impurities on the outside of the rolling brush sleeve 202. The waste liquid impurities generated by cleaning fall into the cleaning box 501 through the liquid passage 505. A filter screen plate 508 can be set in the cleaning box 501. A plurality of screening holes 509 are opened on the filter screen plate 508, so that the waste liquid generated by cleaning can be filtered. The impurities remain on the filter screen plate 508, and the water can be discharged from the drain pipe 502.

[0049] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. An automatically adjustable roller brush device for a vacuum cleaner, characterized in that: The utility model comprises a dust collecting disc body (1) and a digital display control panel (7), wherein the dust collecting disc body (1) is in the shape of a disc, and three or more roller brush structures (2) are evenly distributed around the axis thereof on the lower side of the dust collecting disc body (1), and a dust collecting structure (6) is provided between two adjacent roller brush structures (2), and one end of an operating handle rod (4) is provided on the upper side of the dust collecting disc body (1), and the other end of the operating handle rod (4) is connected to a dust collecting joint (403), and one end of the operating handle rod (4) connected to the dust collecting disc body (1) is provided with a rotating connector structure (3) for realizing mutual communication between the dust collecting joint (403) and the dust collecting structure (6) and for realizing hinged and horizontal rotational connection between the operating handle rod (4) and the dust collecting disc body (1); The roller brush structure (2) comprises a motor (211), the motor (211) being fixedly mounted on the dust collecting disc body (1) via a fixing seat (212), the output shaft end of the motor (211) being connected to a plug-in shaft (203), a roller brush sleeve (202) being detachably mounted on the plug-in shaft (203), a linear drive structure for driving the roller brush sleeve (202) to move along its axial direction being mounted within the plug-in shaft (203), and the output end of the digital display control panel (7) being electrically connected to the input end of the motor (211); The bottom side of the dust collecting disc body (1) is provided with a roller brush groove (104) for rotating in a one-to-one corresponding manner with the roller brush sleeve (202); an inner shaft rod (201) is fixedly provided at the center position of the roller brush sleeve (202); a plug-in channel (206) for slidingly connecting with the plug-in shaft (203) is provided at the central axis of the inner shaft rod (201); the linear drive structure includes an electric telescopic rod (208) fixedly provided in the inner shaft rod (201); a push rod head end of the electric telescopic rod (208) is connected to the inner shaft rod (201); The connecting holes (209) provided at the ends of the rod (201) are connected to each other in a coordinated manner. An adjustment groove (207) is provided at one end of the inner shaft rod (201) close to the connection hole (209). The end of the inner shaft rod (201) located at the adjustment groove (207) is threadedly connected with a fixing bolt (210) for fixing the push rod head end of the electric telescopic rod (208) in the connection hole (209). The output end of the digital display control panel (7) is electrically connected to the input end of the electric telescopic rod (208).

2. The automatic adjustment roller brush device for a vacuum cleaner according to claim 1, characterized in that: The dust collection structure (6) comprises a dust collection head (601), the cross-section of the dust collection head (601) is in the shape of an arc, a cleaning brush (603) is provided on one side of the bottom of the dust collection head (601), and each dust collection head (601) is connected to one end of a dust collection duct (602), and the other end of the dust collection duct (602) is connected to each other by a rotating connector structure (3).

3. The automatic adjustment roller brush device for a vacuum cleaner according to claim 1, characterized in that: The outer side of the operating handle rod (4) is provided with an outer sleeve (401), and the outer side of the outer sleeve (401) is provided with a plurality of anti-slip rings (402) evenly distributed along its axial direction. The digital display control panel (7) is provided on the operating handle rod (4).

4. The automatic adjustment roller brush device for a vacuum cleaner according to claim 1, characterized in that: The rotary connector structure (3) comprises a support tube (309) with one end fixedly arranged on the dust collecting disc body (1); the other end of the support tube (309) is rotatably connected to a rotary seat (301) via a sealing bearing (307); a U-shaped groove (302) is provided on the upper side of the rotary seat (301); a rotary column (303) is rotatably arranged in the U-shaped groove (302); a ventilation channel (308) is provided in the rotary column (303) and the operating handle (4); one end of the ventilation channel (308) is connected to the dust collecting connector ( 403) are connected to each other, the other end of the ventilation channel (308) is open and the opening is connected to the rotating seat (301) through the telescopic connecting pipe (305), the rotating seat (301) is provided with a connecting air hole (306) for connecting the telescopic connecting pipe (305) and the support pipe (309) to each other, the bottom side of the rotating seat (301) is provided with a sealing ring (304) for movably sealing against the outer wall of the support pipe (309), and the support pipe (309) is connected to the dust collection duct (602).

5. The automatic adjustment roller brush device for a vacuum cleaner according to claim 1, characterized in that: The lower side of the dust collecting disc (1) is provided with more than three universal movable wheels (105) along its circumferential direction, wherein the bottom side height position of the dust collecting head (601) is higher than the bottom side height position of the universal movable wheels (105), and the bottom side height position of the universal movable wheels (105) is higher than the bottom side height position of the roller brush cover (202).

6. The automatic adjustment roller brush device for a vacuum cleaner according to claim 1, characterized in that: The invention also comprises a cleaning seat structure (5) for cleaning the roller brush cover (202), wherein the cleaning seat structure (5) comprises a cleaning box (501), wherein the cleaning box (501) is cylindrical in shape, wherein the interior of the cleaning box (501) is hollow and the upper side is open, and an outer edge plate (101) for cooperating with the upper side opening of the cleaning box (501) is provided on the outer side of the dust collecting disc (1), and a brushing structure for brushing the roller brush cover (202) is provided inside the cleaning seat structure (5).

7. The automatic adjustment roller brush device for a vacuum cleaner according to claim 6, characterized in that: The scrubbing structure comprises a central support column (510), and a cleaning seat cylinder (504) is provided on the outer side of the central support column (510) and is evenly distributed around the central support column and corresponds one to one with the roller brush sleeve (202). The cross-section of the cleaning seat cylinder (504) is in the shape of an arc. A liquid passage groove (505) is provided at the middle position of the bottom side of the cleaning seat cylinder (504). A plurality of cleaning brushes (506) are provided on the inner side wall of the cleaning seat cylinder (504), and one end of the cleaning seat cylinder (504) is fixedly connected to the inner side wall of the cleaning box (501).

8. The automatic adjustment roller brush device for a vacuum cleaner according to claim 6, characterized in that: A liquid spraying pipe (507) for spraying liquid toward the interior of each cleaning seat cylinder (504) is provided on one side of the upper portion thereof, one end of the liquid spraying pipe (507) is connected to the central support column (510), a liquid inlet pipe (503) is connected to one side of the bottom of the cleaning box (501), a liquid guide channel (511) for connecting the liquid inlet pipe (503) and the liquid spraying pipe (507) is formed on the inner bottom surface of the central support column (510) and the cleaning box (501), and a liquid drain pipe (502) for draining the liquid inside the cleaning box (501) is connected to one side of the bottom of the cleaning box (501).

9. The automatic adjustment roller brush device for a vacuum cleaner according to claim 7, characterized in that: The lower side of the outer edge plate (101) is formed with three or more evenly distributed triangular clamping platforms (103) along its edge, and the upper side edge of the cleaning box (501) is provided with triangular clamping grooves (512) corresponding one-to-one to the triangular clamping platforms (103). The lower side protrusion of the outer edge plate (101) is provided with an annular insert ring (102) for positioning and matching with the inner side of the upper opening of the cleaning box (501). When the triangular clamping platforms (103) and the triangular clamping grooves (512) are matched one-to-one, the roller brush cover (202) is matched one-to-one with the cleaning seat cylinder (504).

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