A cleaning floor brush facilitating cleaning of dead corners

Abstract

This invention relates to the field of cleaning tool accessories technology, and discloses a floor brush for easy cleaning of hard-to-reach corners. The brush includes a floor brush housing, a floor brush roller assembly located at the front end of the inner cavity of the housing, with both sides of the roller assembly penetrating the sides of the housing and extending beyond its outer surface. A power drive assembly is located in the middle of the inner cavity of the housing to drive the roller assembly to rotate. A corner cleaning assembly is located at the front end of the housing, movably mounted at the bottom front end. An extension rod is located at the rear end of the housing, with its bottom rotatably connected to the housing via a rotating shaft. Auxiliary components are located on both sides of the housing. The auxiliary rollers in these components assist the floor brush in moving forward, avoiding friction between the floor brush housing and the wall surface when pushing the brush forward at an angle, which could damage the wall and hinder the brush's forward movement.

Description

Technical Field

[0001] This invention relates to the field of cleaning tool accessories technology, specifically a cleaning brush that facilitates cleaning hard-to-reach corners. Background Technology

[0002] Some existing vacuum cleaners combine vacuuming and floor brushes to form hybrid vacuum cleaners. These hybrid vacuum cleaners, in addition to their regular vacuuming function, also have a floor brush function. The mop on the floor brush makes direct contact with the floor, and the gaps around the mop connect to the vacuum cleaner's suction port. When cleaning the floor, it not only sucks up dust from the floor through the vacuuming function but also removes adhering substances, achieving both floor cleaning and the directing of impurities and dust into the suction chamber, which facilitates dust collection and results in a better cleaning effect.

[0003] However, existing floor brushes have their roller brushes mounted on rotating positioning seats on both sides of the brush. When cleaning corners and other hard-to-reach areas, the roller brush will first touch these rotating positioning seats, thus failing to clean these areas effectively. Chinese patent CN215584061U provides a floor brush with a cleaning function that eliminates dead angles. It includes a brush body and a main roller brush rotatably mounted on the brush body. A side roller brush is mounted on the side end of the main roller brush and is positioned outside the cover of the brush body. A rotating positioning seat extends from the side end of the brush body, and a rotating support frame is fixedly mounted at the end of the brush body away from the rotating positioning seat. The main roller brush is rotatably connected to both the rotating positioning seat and the rotating support frame. This invention provides a side roller brush on the outer end of the main roller brush, positioned outside the cover of the brush body. The side roller brush can effectively clean corners and other hard-to-reach areas. This cleaning tool performs dusting, mopping, and sweeping, enabling it to clean hard-to-reach corners. It also features at least one set of rotating blades that actively comb the main roller brush. While the side roller brush on one side can clean corners to some extent, the placement of furniture in a home limits its effectiveness. For example, the side roller brush cannot be brought close to the corner. Furthermore, when cleaning floors, especially under sofas and other furniture, users need to exert considerable effort to keep the brush in contact with the corner, causing friction between the brush side and the wall, which not only shortens the brush's lifespan but can also damage the wall. Additionally, when cleaning the corners under sofas and other furniture, the rounded shape of the brush roller leaves a gap between the brush and the floor after it touches the wall, preventing thorough cleaning of the inner corners. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a cleaning brush that facilitates cleaning hard-to-reach corners. It features an auxiliary roller in its auxiliary components that assists the brush's forward movement, preventing damage to the wall caused by friction between the brush casing and the wall when pushing the brush forward at an angle, and addressing the problem of the brush being difficult to move forward. This solves the problem of users struggling to keep the brush in contact with the wall corner when cleaning household floors, especially under furniture such as sofas. This friction between the brush's side and the wall not only affects the brush's lifespan but also damages the wall.

[0006] (II) Technical Solution

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a floor brush for easy cleaning of dead corners, comprising a floor brush shell, a floor brush roller assembly disposed at the front end of the inner cavity of the floor brush shell, the two sides of the floor brush roller assembly penetrating through both sides of the floor brush shell and extending beyond the outer side of the floor brush shell; a power drive assembly disposed in the middle of the inner cavity of the floor brush shell, the power drive assembly being used to drive the floor brush roller assembly to rotate; a dead corner cleaning assembly disposed at the front end of the floor brush shell, the dead corner cleaning assembly being movably installed at the bottom of the front end of the floor brush shell; an extension rod disposed at the rear end of the floor brush shell, the bottom of the extension rod being rotatably connected to the floor brush shell via a rotating shaft; auxiliary components disposed on both sides of the floor brush shell; a linear drive mechanism disposed between the rotating shaft and the auxiliary components, the rotating shaft being used to move the linear drive mechanism; the auxiliary components including auxiliary rollers; by swinging the extension rod to drive the rotating shaft to rotate, the rotating shaft driving the linear drive mechanism to drive the auxiliary components to perform linear motion; the auxiliary rollers performing motion opposite to the swing direction of the extension rod and extending beyond the outer side of the floor brush shell;

[0008] The dead corner cleaning component includes a front brush plate and an auxiliary brush plate. The front brush plate is located at the middle of the bottom front end of the floor brush housing, and the two sides of the front brush plate are directly opposite one end of the inner side of the floor brush shaft. The auxiliary brush plates are located on both sides of the bottom front end of the floor brush housing.

[0009] Preferably, the front brush plate includes a mounting protrusion, a mounting plate, and a front mop. The mounting protrusion is located above the mounting plate, and the front mop is fitted onto the bottom of the mounting plate. The bottom of the floor brush housing is provided with a mounting slot for engaging the mounting protrusion. One side of the auxiliary brush plate extends outside the floor brush housing and is aligned with one end of the outer side of the floor brush shaft. The bottom of both sides of the floor brush housing is provided with mounting grooves, and the bottom of the auxiliary brush plate is provided with a slider mounting component that is adapted to the mounting groove.

[0010] Preferably, the floor brush roller assembly includes two sets of floor brush shafts, which are respectively disposed on both sides of the front end of the inner cavity of the floor brush housing. Bearings are respectively connected to the adjacent ends of the floor brush shafts. The outer ring of the bearing is fixedly connected to the inner cavity of the floor brush housing, and one side of the inner ring of the bearing is fixedly connected to the floor brush shaft. A floor brush roller is sleeved on the outer surface of the floor brush shaft, and the floor brush roller is used for cleaning the floor.

[0011] Preferably, the power drive assembly includes a floor brush motor, which is located in the middle of the inner cavity of the floor brush housing and on one side of the floor brush roller assembly. The output end of the floor brush motor is provided with a drive gear, a driven gear is provided between two bearings, and a transmission gear is provided between the drive gear and the driven gear. The transmission gear is rotatably engaged with the floor brush housing through a mounting frame.

[0012] Preferably, the extension rod can swing vertically relative to the floor brush housing and horizontally relative to the floor brush housing. A connecting rod is provided at the bottom of the extension rod, and a connecting groove is provided at the tail of the rotating shaft. The bottom of the connecting rod is located inside the connecting groove, and the bottom of the connecting rod is rotatably connected to the connecting groove.

[0013] Preferably, the linear drive mechanism includes a straight toothed plate, a drive frame is provided at the bottom of the straight toothed plate, the drive frame passes through the mounting frame and slides with the mounting frame, the auxiliary components are installed on both sides of the drive frame, and a drive tooth is provided at the bottom of the rotating shaft, the drive tooth meshing with the straight toothed plate.

[0014] Preferably, the auxiliary component further includes two sets of mounting side plates. A guide groove is provided in the middle of the mounting side plate. A guide slider is provided inside the guide groove. A roller shaft is provided in the middle of the guide slider. The auxiliary roller is located in the middle of the mounting side plate and is mounted on the roller shaft. A spring is provided between the guide slider and the drive frame. Guide rings are provided on the inner and outer sides of the spring.

[0015] Preferably, a dust suction chamber is provided at the top of the inner cavity of the floor brush housing, and the dust suction chamber is located at the upper tail of the floor brush housing, with the adapter cavity positioned directly opposite the extension rod. A scraper is provided at the bottom of the dust suction chamber, with one side of the scraper abutting against the floor brush roller assembly. A breathable mesh is provided in the middle of the scraper. A sealing plate is provided at the bottom of the floor brush housing, with a floor brush groove at the front end of the sealing plate that is adapted to the floor brush roller assembly. A cleaning mop is provided at the rear end of the sealing plate.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a cleaning brush that facilitates cleaning hard-to-reach corners, and has the following beneficial effects:

[0018] 1. This cleaning brush, designed for easy cleaning of hard-to-reach corners, allows you to hold the brush against the wall by extending the extension rod. As the brush moves forward, the corner cleaning component located at the front of the brush housing cleans the corners. When cleaning under furniture such as sofas, extend the brush with the corner cleaning component under the furniture by holding the extension rod. Rotating the extension rod drives the rotating shaft, tilting the extension rod relative to the brush housing. This allows the brush to be easily placed under the furniture in the corner. The rotating shaft activates a linear drive mechanism, which in turn causes an auxiliary component to extend beyond the brush housing. As the brush is pushed forward, it moves closer to the wall, where the auxiliary rollers in the auxiliary component assist in its forward movement. This avoids friction between the brush housing and the wall when pushing the brush at an angle, preventing damage to the wall and hindering the brush's forward movement.

[0019] 2. This cleaning brush, which facilitates cleaning hard-to-reach areas, extends along both sides of the brush roller assembly and the brush housing, enabling it to clean the floor along the wall. Specifically, the brush shafts located on both sides of the front end of the brush housing drive the brush rollers mounted on their outer sides. When cleaning the floor along the wall, the brush motor drives the drive gear, which in turn drives the driven gear through the transmission gear. The driven gear then drives the bearings on both sides, causing the brush rollers in the brush roller assembly to contact the floor at the bottom of the brush groove and rotate. This allows the outer edge of the brush rollers to clean the floor along the wall.

[0020] 3. This cleaning brush, which facilitates cleaning hard-to-reach areas, features a front brush plate positioned in the center of the front end of the brush housing. While the brush rollers are cleaning the floor, the front brush plate fills the area between the two brush rollers. For cleaning hard-to-reach areas, auxiliary brush plates can be installed on both sides of the front end of the brush housing. This allows one auxiliary brush plate to clean the hard-to-reach area directly, preventing the round brush rollers from leaving uncleaned areas like corners and edges. During installation, the front brush plate is installed in the center of the front end of the brush housing using the mounting protrusions and the mounting slots at the bottom of the brush housing. The front mop is then placed on the mounting plate. This is generally used to clean the area between the two brush rollers. The auxiliary brush plate is installed in the mounting grooves on both sides of the brush housing using the slider mounting hardware at the bottom. During installation, the auxiliary brush plate is directly inserted into the mounting grooves on both sides of the brush housing, allowing it to extend to the outer ends of the brush housing.

[0021] 4. This cleaning brush, which facilitates cleaning hard-to-reach areas, uses a straight toothed plate in conjunction with drive teeth at the bottom of a rotating shaft. When the rotating shaft is rotated, the drive teeth on the rotating shaft move the straight toothed plate, causing the drive frame to move linearly within the mounting frame. Other components in the auxiliary assembly are then installed via the mounting side plate. A guide groove, in conjunction with a guide slider, allows the roller shaft and auxiliary roller on the guide slider to move within the guide groove. Under the action of a spring, the entire auxiliary assembly extends beyond the brush housing, with the auxiliary roller abutting against the wall, thus compressing the spring. As the cleaning brush moves forward, the auxiliary roller remains close to the wall, assisting the brush in its forward movement. This design, using the auxiliary roller in the auxiliary assembly, helps the cleaning brush move forward, avoiding the friction between the brush housing and the wall that could damage the wall or hinder the brush's forward movement when pushed forward at an angle.

[0022] 5. This cleaning brush, which facilitates cleaning hard-to-reach areas, uses a scraper at the bottom of the suction chamber to abut against the brush roller assembly. As the brush rollers roll over the floor, dust and debris adhere to them. The brush rollers continue to rotate until the side with the dust adheres to the scraper, which then scrapes off the dust, which falls onto the ventilation mesh. In practical use, the vacuum cleaner's suction pipe is connected to the external chamber. The vacuum cleaner's action causes airflow inside the suction chamber, allowing outside air to enter through the ventilation mesh at the bottom and sucking in the scraped-off dust. This cleans the dust on the brush rollers, ensuring their longevity. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0024] Figure 2 This is one of the exploded structural diagrams of the area between the floor brush housing and the floor brush roller assembly of the present invention;

[0025] Figure 3 This is the second exploded structural diagram of the area between the floor brush housing and the floor brush roller assembly of the present invention;

[0026] Figure 4 This is a cross-sectional view of the internal structure of the floor brush housing near the motor, according to the present invention.

[0027] Figure 5 This is one of the schematic diagrams showing the internal structure of the floor brush housing from another side;

[0028] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at point A;

[0029] Figure 7This is a three-dimensional structural diagram of the brush roller assembly and power drive component of the present invention.

[0030] Figure 8 For the present invention Figure 7 A magnified schematic diagram of the structure at point B;

[0031] Figure 9 This is a second schematic diagram showing the internal structure of the floor brush housing from the other side.

[0032] Figure 10 This is a three-dimensional cross-sectional view of one side of the floor brush housing of the present invention.

[0033] In the diagram: 1. Floor brush housing; 11. Mounting frame; 12. Mounting slot; 13. Mounting slide; 14. Sealing plate; 15. Floor brush groove; 16. Cleaning mop; 2. Floor brush roller assembly; 21. Floor brush shaft; 22. Bearing; 23. Floor brush roller; 24. Driven gear; 3. Power drive assembly; 31. Floor brush motor; 32. Drive gear; 33. Transmission gear; 4. Dead corner cleaning assembly; 41. Front brush plate; 411. Mounting protrusion; 412. Mounting plate; 4 13. Front mop; 42. Auxiliary brush plate; 421. Slider mounting piece; 5. Extension rod; 51. Rotating shaft; 511. Drive gear; 52. Connecting rod; 53. Connecting groove; 6. Auxiliary component; 61. Auxiliary roller; 62. Mounting side plate; 63. Guide groove; 64. Guide slider; 65. Roller shaft; 66. Spring; 67. Guide ring; 7. Straight toothed plate; 71. Drive frame; 8. Dust suction chamber; 81. Adapter chamber; 82. Scraper; 83. Breathable mesh. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1-10A floor cleaning brush for easy cleaning of hard-to-reach corners includes a floor brush housing 1, a floor brush roller assembly 2 disposed at the front end of the inner cavity of the floor brush housing 1, the floor brush roller assembly 2 extending through both sides of the floor brush housing 1 and extending to the outside of the floor brush housing 1; a power drive assembly 3 disposed in the middle of the inner cavity of the floor brush housing 1, the power drive assembly 3 being used to drive the floor brush roller assembly 2 to rotate; a hard-to-reach cleaning assembly 4 disposed at the front end of the floor brush housing 1, the hard-to-reach cleaning assembly 4 being movably installed at the bottom of the front end of the floor brush housing 1; an extension rod 5 disposed at the rear end of the floor brush housing 1, the bottom of the extension rod 5 being rotatably connected to the floor brush housing 1 via a rotating shaft 51; auxiliary assemblies 6 disposed on both sides of the floor brush housing 1; a linear drive mechanism disposed between the rotating shaft 51 and the auxiliary assemblies 6, the rotating shaft 51 being used to move the linear drive mechanism; the auxiliary assemblies 6 include auxiliary rollers 61; by swinging the extension rod 5 to drive the rotating shaft 51 to rotate, the rotating shaft 51 drives the linear drive mechanism to drive the auxiliary assemblies 6 to perform linear motion, the auxiliary rollers 61 performing motion opposite to the swing direction of the extension rod 5 and extending to the outside of the floor brush housing 1.

[0036] In use, the power drive component 3 simultaneously drives the floor brush roller assembly 2 on both sides to rotate. When cleaning the floor along the wall, the cleaning brush is aligned with the wall by holding the extension rod 5. Since the two sides of the floor brush roller assembly 2 extend to the two sides of the floor brush housing 1, the floor brush roller assembly 2 can clean the floor along the wall. When cleaning the floor in the corner, first install the corner cleaning component 4 at the bottom of the floor brush housing 1, and then hold the side of the cleaning brush close to the wall by holding the extension rod 5. As the cleaning brush moves forward, the corner cleaning component 4 set at the front side of the floor brush housing 1 cleans the floor in the corner. When cleaning the floor under furniture such as sofas, the brush is aligned with the wall by holding the extension rod 5. The extension rod 5 extends the cleaning brush equipped with the corner cleaning component 4 into the bottom of the furniture. Then, the extension rod 5 is rotated to drive the rotating shaft 51. At this time, the extension rod 5 is tilted relative to the brush housing 1, which can effectively send the cleaning brush into the corner of the wall under the furniture. When the rotating shaft 51 rotates, it actuates the linear drive mechanism, which in turn drives the auxiliary component 6 to extend out of the outside of the brush housing 1. When the cleaning brush is pushed forward, it moves closer to the wall. The auxiliary roller 61 in the auxiliary component 6 can then assist the cleaning brush to move forward, avoiding the problem of wall damage and difficulty in moving the cleaning brush forward due to the friction between the brush housing 1 and the wall when the cleaning brush is pushed forward at an angle.

[0037] Furthermore, the floor brush roller assembly 2 includes two sets of floor brush shafts 21. The floor brush shafts 21 are respectively arranged on both sides of the front end of the inner cavity of the floor brush housing 1. The ends of the floor brush shafts 21 that are close to each other are respectively connected to bearings 22. The outer ring of the bearing 22 is fixedly connected to the inner cavity of the floor brush housing 1, and one side of the inner ring of the bearing 22 is fixedly connected to the floor brush shaft 21. The outer surface of the floor brush shaft 21 is fitted with a floor brush roller 23, which is used to clean the floor. The floor brush shafts 21 arranged on both sides of the front end of the inner cavity of the floor brush housing 1 drive the floor brush roller 23 fitted on their outer sides. When cleaning the floor along the wall, the floor brush shafts 21 rotate with the bearings 22, and then the outer side of the floor brush roller 23 is used to clean the floor along the wall.

[0038] Furthermore, the power drive assembly 3 includes a floor brush motor 31, which is located in the middle of the inner cavity of the floor brush housing 1 and on one side of the floor brush roller assembly 2. The output end of the floor brush motor 31 is provided with a drive gear 32, and a driven gear 24 is provided between two bearings 22. A transmission gear 33 is provided between the drive gear 32 and the driven gear 24. The transmission gear 33 is rotatably engaged with the floor brush housing 1 through the mounting frame 11. The floor brush motor 31 drives the drive gear 32 to rotate, and the drive gear 32 drives the driven gear 24 to rotate through the transmission gear 33. In turn, the driven gear 24 drives the bearings 22 on both sides to rotate, so that the floor brush roller 23 in the floor brush roller assembly 2 cleans the ground along the wall.

[0039] Furthermore, the dead corner cleaning component 4 includes a front brush plate 41 and an auxiliary brush plate 42. The front brush plate 41 is located in the middle of the bottom front end of the floor brush housing 1, with both sides of the front brush plate 41 facing one end of the inner side of the floor brush shaft 21. The auxiliary brush plate 42 is located on both sides of the bottom front end of the floor brush housing 1. By setting the front brush plate 41 in the middle of the front end of the floor brush housing 1, when the floor brush roller 23 cleans the ground, the front brush plate 41 can fill the area between the two floor brush rollers 23. When cleaning dead corners, the auxiliary brush plate 42 can be installed on both sides of the front end of the floor brush housing 1. When the floor brush roller 23 cleans the dead corners, the auxiliary brush plate 42 on one side can clean the dead corners, avoiding the ground that cannot be cleaned by the front end of the round roller 23, which would prevent the ground at the corners and edges of the walls from being completely cleaned.

[0040] Furthermore, the front brush plate 41 includes a mounting protrusion 411, a mounting plate 412, and a front mop 413. The mounting protrusion 411 is located above the mounting plate 412, and the front mop 413 is sleeved on the bottom of the mounting plate 412. The bottom of the floor brush housing 1 is provided with a mounting slot 12 for mounting the mounting protrusion 411. The auxiliary brush plate 42 extends to the outside of the floor brush housing 1 on one side and is aligned with one end of the outside of the floor brush shaft 21. The bottom of both sides of the floor brush housing 1 is provided with mounting grooves 13, and the bottom of the auxiliary brush plate 42 is provided with a slider mounting component 421, which is adapted to the mounting groove 13. The front brush plate 41 is installed in the middle of the front end of the floor brush housing 1 by using the mounting protrusion 411 in conjunction with the mounting slot 12 at the bottom of the floor brush housing 1. Then, the front mop 413 is put on the mounting plate 412 and is generally used to clean the area between the two floor brush rollers 23. The auxiliary brush plate 42 is installed in the mounting groove 13 by using the slider mounting part 421 at the bottom of the auxiliary brush plate 42. The mounting groove 13 is opened on both sides of the floor brush housing 1. During installation, the auxiliary brush plate 42 is directly inserted into the mounting groove 13 on both sides of the floor brush housing 1 so that the two sides of the auxiliary brush plate 42 can extend to the outer sides of both ends of the floor brush housing 1.

[0041] Furthermore, the extension rod 5 can swing vertically relative to the floor brush housing 1 and horizontally relative to the floor brush housing 1. A connecting rod 52 is provided at the bottom of the extension rod 5, and a connecting groove 53 is provided at the tail of the rotating shaft 51. The bottom of the connecting rod 52 is located inside the connecting groove 53, and the bottom of the connecting rod 52 is rotatably connected to the connecting groove 53. Through the rotatable engagement between the connecting rod 52 at the bottom of the extension rod 5 and the connecting groove 53 on the rotating shaft 51, when using the cleaning floor brush, the extension rod 5 can swing vertically relative to the floor brush housing 1. At the same time, through the rotatable engagement between the rotating shaft 51 and the floor brush housing 1, the extension rod 5 can also rotate horizontally relative to the floor brush housing 1. This allows the cleaning floor brush to be inserted under the furniture when cleaning the floor under the furniture, and the cleaning floor brush can be adjusted by rotating or swinging the extension rod 5.

[0042] Furthermore, the linear drive mechanism includes a straight toothed plate 7, a drive frame 71 is provided at the bottom of the straight toothed plate 7, the drive frame 71 passes through the mounting frame 11 and slides with the mounting frame 11, auxiliary components 6 are installed on both sides of the drive frame 71, and a drive tooth 511 is provided at the bottom of the rotating shaft 51, the drive tooth 511 meshes with the straight toothed plate 7; through the straight toothed plate 7 cooperating with the drive tooth 511 at the bottom of the rotating shaft 51, when the rotating shaft 51 is rotated, the drive tooth 511 on the rotating shaft 51 pushes the straight toothed plate 7 to move, so that the drive frame 71 makes linear motion within the mounting frame 11.

[0043] Furthermore, the auxiliary component 6 also includes two sets of mounting side plates 62. A guide groove 63 is provided in the middle of the mounting side plate 62. A guide slider 64 is provided inside the guide groove 63. A roller shaft 65 is provided in the middle of the guide slider 64. An auxiliary roller 61 is located in the middle of the mounting side plate 62 and is mounted on the roller shaft 65. A spring 66 is provided between the guide slider 64 and the drive frame 71. Guide rings 67 are provided on the inner and outer sides of the spring 66. Other components in the auxiliary component 6 are installed through the mounting side plate 62. The guide groove 63 cooperates with the guide slider 64 to allow the roller shaft 65 on the guide slider 64 and the auxiliary roller 61 to move in the guide groove 63. Under the action of the spring 66, the entire auxiliary component 6 extends out of the floor brush housing 1. The auxiliary roller 61 abuts against the wall, and the spring 66 is compressed. When the cleaning brush moves forward, the auxiliary roller 61 can stick to the wall to assist the cleaning brush in moving forward.

[0044] Furthermore, a dust collection chamber 8 is provided at the top of the inner cavity of the floor brush housing 1. The dust collection chamber 8 is located at the top of a connecting chamber 81, which is positioned at the upper rear of the floor brush housing 1 and is directly opposite the extension rod 5. A scraper 82 is provided at the bottom of the dust collection chamber 8, with one side of the scraper 82 abutting against the floor brush roller assembly 2. A ventilation mesh 83 is provided in the middle of the scraper 82. A sealing plate 14 is provided at the bottom of the floor brush housing 1. A floor brush groove 15 is opened at the front end of the sealing plate 14, which is adapted to the floor brush roller assembly 2. A cleaning mop 16 is provided at the rear of the sealing plate 14. The scraper 82 at the bottom of the dust collection chamber 8 abuts against the floor brush roller assembly 2. After the floor brush roller 23 in the floor brush roller group 2 rolls over the ground, it sticks the dust and other debris on the ground to the floor brush roller 23. Then the floor brush roller 23 continues to rotate until the side with the debris is turned to the scraper 82. The scraper 82 scrapes off the debris on the floor brush roller 23, and the debris falls onto the ventilated net 83. In actual use, the vacuum cleaner pipe of the external vacuum cleaner is connected to the transfer chamber 81. Under the action of the vacuum cleaner, the air inside the vacuum chamber 8 is driven to flow. The external air enters the vacuum chamber 8 through the ventilated net 83 set at the bottom of the vacuum chamber 8 and sucks the scraped debris into the vacuum cleaner.

[0045] Working principle: During use, the power drive component 3 simultaneously drives the floor brush roller assembly 2 on both sides to rotate. When cleaning the floor along the wall, the cleaning brush is aligned with the wall by holding the extension rod 5. Since the floor brush roller assembly 2 extends to both sides of the floor brush housing 1, the floor brush roller assembly 2 can clean the floor along the wall. The floor brush shaft 21 set on both sides of the front end of the floor brush housing 1 drives the floor brush roller 23 sleeved on the outside. When cleaning the floor along the wall, the floor brush motor 31 drives the drive gear 32 to rotate. The drive gear 32 drives the driven gear 24 to rotate through the transmission gear 33. In turn, the driven gear 24 drives the bearings 22 on both sides to rotate, so that the floor brush roller 23 in the floor brush roller assembly 2 is located at the bottom of the floor brush groove 15 and contacts the ground and rotates. Then, the outer edge of the floor brush roller 23 is used to clean the floor along the wall.

[0046] When cleaning the corner of the floor, first install the corner cleaning component 4 at the bottom of the floor brush housing 1. The front brush plate 41, located in the middle of the front end of the floor brush housing 1, can fill the area between the two floor brush rollers 23 while the floor brush rollers 23 are cleaning the floor. When cleaning corners, auxiliary brush plates 42 can be installed on both sides of the front end of the floor brush housing 1. When the floor brush rollers 23 are cleaning corners, one auxiliary brush plate 42 can clean the corner directly, preventing the round, cylindrical floor brush rollers 23 from not being able to clean areas at their front end, thus ensuring that corners and edges of the floor are not completely cleaned. During installation, the front brush plate 41 is installed in the middle of the front end of the floor brush housing 1 using the mounting protrusion 411 in conjunction with the mounting slot 12 at the bottom of the floor brush housing 1. Then, the front mop 413 is put on the mounting plate 412 and is generally used to clean the area between the two floor brush rollers 23. The auxiliary brush plate 42 is installed in the mounting groove 13 by the slider mounting part 421 at the bottom of the auxiliary brush plate 42. The mounting groove 13 is opened on both sides of the floor brush housing 1. During installation, the auxiliary brush plate 42 is directly inserted into the mounting groove 13 on both sides of the floor brush housing 1 so that the two sides of the auxiliary brush plate 42 can extend to the outer sides of both ends of the floor brush housing 1.

[0047] Then, by holding the extension rod 5, the side of the cleaning brush is pressed against the wall. As the cleaning brush moves forward, the corner cleaning component 4 set at the front side of the brush shell 1 is used to clean the floor at the corner. When cleaning the floor under furniture such as sofas, the cleaning brush with the corner cleaning component 4 installed is inserted into the bottom of the furniture by holding the extension rod 5. Then, the extension rod 5 is rotated to drive the rotating shaft 51. At this time, the extension rod 5 is tilted relative to the brush shell 1, which can effectively send the cleaning brush into the corner of the wall under the furniture. When the rotating shaft 51 rotates, it actuates the linear drive mechanism, which in turn drives the auxiliary component 6 to extend out of the outside of the brush shell 1. When the cleaning brush is pushed forward, it moves closer to the wall.

[0048] In the above process, the connecting rod 52 at the bottom of the extension rod 5 rotates and engages with the connecting groove 53 on the rotating shaft 51. When using the cleaning brush, the extension rod 5 can swing vertically relative to the brush housing 1. Simultaneously, through the rotational engagement of the rotating shaft 51 and the brush housing 1, the extension rod 5 can also rotate horizontally relative to the brush housing 1. This allows the cleaning brush to be inserted under furniture when cleaning the floor underneath. The brush can be adjusted by rotating or swinging the extension rod 5. The straight toothed plate 7 engages with the drive teeth 511 at the bottom of the rotating shaft 51. When the rotating shaft 51 is rotated, the drive teeth 511 on the rotating shaft 51 move the straight toothed plate 7, causing the drive frame 71 to move linearly within the mounting frame 11. The other components in the auxiliary assembly 6 are installed through the mounting side plate 62. The guide groove 63 cooperates with the guide slider 64, so that the roller shaft 65 on the guide slider 64 and the auxiliary roller 61 can move in the guide groove 63. Under the action of the spring 66, the entire auxiliary assembly 6 extends out of the floor brush shell 1, and the auxiliary roller 61 abuts against the wall. As a result, the spring 66 is compressed. When the cleaning brush moves forward, the auxiliary roller 61 can stick to the wall and assist the cleaning brush to move forward. Thus, the auxiliary roller 61 in the auxiliary assembly 6 can assist the cleaning brush to move forward, avoiding the problem of wall damage and difficulty in moving forward of the cleaning brush due to the friction between the floor brush shell 1 and the wall when pushing the cleaning brush forward at an angle.

[0049] During the cleaning process of the floor brush, the scraper 82 at the bottom of the dust collection chamber 8 abuts against the floor brush roller assembly 2. After the floor brush roller 23 in the floor brush roller assembly 2 rolls over the ground, dust and other debris on the ground adheres to the floor brush roller 23. The floor brush roller 23 continues to rotate until the side with the dust adhered is turned to the scraper 82. The scraper 82 scrapes off the dust on the floor brush roller 23, and the dust falls onto the ventilated mesh 83. In actual use, the transfer chamber 81 is connected to the vacuum cleaner's suction pipe. Under the action of the vacuum cleaner, the air inside the dust collection chamber 8 is driven to flow. External air enters the dust collection chamber 8 through the ventilated mesh 83 at the bottom of the dust collection chamber 8 and sucks the scraped dust into the vacuum cleaner to clean the dust on the floor brush roller 23, so that the floor brush roller 23 can be used for a long time.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A floor cleaning brush for easy cleaning of hard-to-reach corners, comprising a brush housing (1), characterized in that: The front end of the inner cavity of the floor brush housing (1) is provided with a floor brush roller assembly (2), the floor brush roller assembly (2) extends through both sides of the floor brush housing (1) and extends to the outside of the floor brush housing (1); a power drive assembly (3) is provided in the middle of the inner cavity of the floor brush housing (1), the power drive assembly (3) is used to drive the floor brush roller assembly (2) to rotate; a dead angle cleaning assembly (4) is provided at the front end of the floor brush housing (1), the dead angle cleaning assembly (4) is movably installed at the bottom of the front end of the floor brush housing (1); an extension rod (5) is provided at the tail end of the floor brush housing (1), the bottom of the extension rod (5) is rotatably connected to the floor brush housing (1) through a rotating shaft (51); auxiliary components (6) are provided on both sides of the floor brush housing (1), a linear drive mechanism is provided between the rotating shaft (51) and the auxiliary components (6), the rotating shaft (51) is used to move the linear drive mechanism; the auxiliary components (6) include auxiliary rollers (61). The extension rod (5) is swung to drive the rotating shaft (51) to rotate. The rotating shaft (51) drives the linear drive mechanism to drive the auxiliary component (6) to move in a straight line. The auxiliary roller (61) moves in the opposite direction to the swing of the extension rod (5) and extends out of the outside of the floor brush housing (1). The floor brush roller group (2) includes two sets of floor brush shafts (21). The floor brush shafts (21) are respectively arranged on both sides of the front end of the inner cavity of the floor brush housing (1). The dead corner cleaning component (4) includes a front brush plate (41) and an auxiliary brush plate (42). The front brush plate (41) is located at the middle of the bottom front end of the floor brush housing (1). The two sides of the front brush plate (41) are directly opposite one end of the inner side of the floor brush shaft (21). The auxiliary brush plate (42) is located on both sides of the bottom front end of the floor brush housing (1). The front brush plate (41) includes a mounting protrusion (411), a mounting plate (412), and a front mop (413). The mounting protrusion (411) is located above the mounting plate (412), and the front mop (413) is fitted onto the bottom of the mounting plate (412). The bottom of the floor brush housing (1) is provided with a mounting slot (12), which is used to hold the mounting protrusion (411). The auxiliary brush plate (42) extends to the outside of the floor brush housing (1) and is aligned with one end of the outside of the floor brush shaft (21). The bottom of both sides of the floor brush housing (1) is provided with mounting grooves (13), and the bottom of the auxiliary brush plate (42) is provided with a slider mounting component (421), which is adapted to the mounting groove (13).

2. A floor cleaning brush for easy cleaning of hard-to-reach corners according to claim 1, characterized in that: Bearings (22) are connected to one end of the brush shaft (21) respectively. The outer ring of the bearing (22) is fixedly connected to the inner cavity of the brush shell (1). One side of the inner ring of the bearing (22) is fixedly connected to the brush shaft (21). A brush roller (23) is sleeved on the outer surface of the brush shaft (21). The brush roller (23) is used to clean the floor.

3. A floor cleaning brush for easy cleaning of hard-to-reach corners according to claim 2, characterized in that: The power drive assembly (3) includes a floor brush motor (31), which is located in the middle of the inner cavity of the floor brush housing (1) and on one side of the floor brush roller group (2). The output end of the floor brush motor (31) is provided with a drive gear (32), and a driven gear (24) is provided between two bearings (22). A transmission gear (33) is provided between the drive gear (32) and the driven gear (24). The transmission gear (33) is rotatably engaged with the floor brush housing (1) through the mounting frame (11).

4. A floor cleaning brush for easy cleaning of hard-to-reach corners according to claim 1, characterized in that: The extension rod (5) can swing vertically relative to the floor brush housing (1) and horizontally relative to the floor brush housing (1). A connecting rod (52) is provided at the bottom of the extension rod (5). A connecting groove (53) is provided at the tail of the rotating shaft (51). The bottom of the connecting rod (52) is located inside the connecting groove (53), and the bottom of the connecting rod (52) is rotatably connected to the connecting groove (53).

5. A floor cleaning brush for easy cleaning of hard-to-reach corners according to claim 3, characterized in that: The linear drive mechanism includes a straight toothed plate (7), a drive frame (71) is provided at the bottom of the straight toothed plate (7), the drive frame (71) passes through the mounting frame (11) and slides with the mounting frame (11), the auxiliary component (6) is installed on both sides of the drive frame (71), and a drive tooth (511) is provided at the bottom of the rotating shaft (51), the drive tooth (511) meshes with the straight toothed plate (7).

6. A floor cleaning brush for easy cleaning of hard-to-reach corners according to claim 5, characterized in that: The auxiliary component (6) also includes two sets of mounting side plates (62). The mounting side plate (62) has a guide groove (63) in the middle. A guide slider (64) is provided inside the guide groove (63). A roller shaft (65) is provided in the middle of the guide slider (64). The auxiliary roller (61) is located in the middle of the mounting side plate (62) and is mounted on the roller shaft (65). A spring (66) is provided between the guide slider (64) and the drive frame (71). Guide rings (67) are provided on the inner and outer sides of the spring (66).

7. A floor cleaning brush for easy cleaning of hard-to-reach corners according to claim 1, characterized in that: The top of the inner cavity of the floor brush housing (1) is provided with a dust suction chamber (8), and the dust suction chamber (8) is provided with a transfer chamber (81). The transfer chamber (81) is located at the upper tail of the floor brush housing (1) and is positioned directly opposite the extension rod (5). A scraper (82) is provided at the bottom of the dust suction chamber (8). One side of the scraper (82) abuts against the floor brush roller assembly (2). A breathable mesh (83) is provided in the middle of the scraper (82). A sealing plate (14) is provided at the bottom of the floor brush housing (1). A floor brush groove (15) is opened at the front end of the sealing plate (14). The floor brush groove (15) is adapted to the floor brush roller assembly (2). A cleaning mop (16) is provided at the tail of the sealing plate (14).

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