Highly adjustable roller brush vacuum cleaner

Abstract

This application relates to the field of vacuum cleaners, specifically disclosing a height-adjustable roller brush vacuum cleaner, which includes a floor brush assembly with a housing, a roller brush, and rollers, the housing rotating relative to the rollers; a main unit assembly rotatably mounted on the floor brush assembly via a connector; and an adjustment mechanism for adjusting the height of the floor brush assembly relative to the rollers. The adjustment mechanism includes an auxiliary support on the housing, a knob rotating on the housing, a connecting post fixed to the knob, and an adjustment rod fixed to the auxiliary support. One end of the auxiliary support abuts against the ground, and one end of the connecting post has several grooves on its side wall. One end of the adjustment rod abuts against and is inserted into the inner wall of the grooves, with the depth between adjacent grooves gradually increasing. This application provides convenient height adjustment for the floor brush assembly.

Description

Technical Field

[0001] This application relates to the field of vacuum cleaners, and more particularly to a roller brush vacuum cleaner with height adjustment. Background Technology

[0002] In modern life, vacuum cleaners are widely used for cleaning indoor and outdoor floors. Existing vacuum cleaners can be classified by shape into canister, upright, and portable types. Upright vacuum cleaners integrate the head and floor brush into one unit. When in use, pushing the entire machine cleans the floor. The floor brush, equipped with a roller brush, utilizes the high-speed rotation of the roller brush assembly to sweep carpets, thereby improving dust removal efficiency.

[0003] For example, a vacuum cleaner floor brush with patent publication number CN204889870U includes: a body composed of a base and a top cover; a connecting pipe disposed at one end of the body; a suction port formed on the bottom surface of one end of the base, a roller brush assembly disposed in the suction port, and a motor for driving the roller brush assembly, a battery for supplying power to the motor, and a control circuit board disposed at the other end of the base; the control circuit board is electrically connected to the motor and the battery, and a motor speed control component is disposed on the body that is electrically connected to the control circuit board and performs multi-level speed control of the motor.

[0004] For example, the vacuum cleaner floor brush and vacuum cleaner with main and auxiliary air ducts disclosed in patent publication number CN203693489U include: a brush chamber with a brush body, a dust collection box connected to the brush chamber, and an airflow channel located downstream of the dust collection box and connected to the brush chamber. The airflow channel is connected to the brush chamber through the main and auxiliary air ducts respectively.

[0005] However, the height of the roller brush on the floor brush of the above-mentioned vacuum cleaners cannot be adjusted. When using a vacuum cleaner, sometimes the roller brush needs to be in contact with the ground, and sometimes it does not. For example, when using it on a carpet, the roller brush needs to be in full contact with the carpet, but when cleaning a floor, the bristles of the roller brush assembly generally do not need to contact the floor, as this would cause wear and tear on the floor or even damage it. Therefore, it is necessary for the roller brush on the floor brush to be adjustable in height. Utility Model Content

[0006] To address the issue of adjusting the height of the floor brush assembly, this application provides a roller brush vacuum cleaner with height adjustment.

[0007] The height-adjustable roller brush vacuum cleaner provided in this application adopts the following technical solution:

[0008] include:

[0009] A floor brush assembly, which includes a housing, a roller brush, and a roller, with the housing rotating relative to the roller.

[0010] The main unit is rotatably mounted on the floor brush unit via a connector;

[0011] An adjustment mechanism is used to adjust the height of the floor brush assembly relative to the rollers;

[0012] The adjustment mechanism includes an auxiliary support on the outer shell, a knob on the outer shell for rotation, a connecting column fixed on the knob, and an adjustment rod fixed on the auxiliary support. One end of the auxiliary support abuts against the ground, and one end of the connecting column has several grooves on its side wall. One end of the adjustment rod abuts against and is inserted into the inner wall of the groove, and the depth between adjacent grooves gradually increases.

[0013] By adopting the above technical solution, rotating the knob drives the connecting column to rotate, allowing the adjusting rod to switch positions within grooves of different depths. Since the auxiliary support abuts against the ground or carpet, the thrust is reversed, causing the connecting column to move the outer casing upwards. This allows the outer casing to rotate relative to the rollers, thus adjusting its height. This allows the outer casing to be adjusted to accommodate carpets of different heights, facilitating the vacuum cleaner and rollers' work on carpets, reducing physical effort, increasing work efficiency, and improving carpet cleaning effectiveness.

[0014] In one possible implementation, the adjustment mechanism further includes a fixed plate fixed inside the housing, a stop rod fixed on the fixed plate, and a plurality of stop grooves that cooperate with the stop rod on the connecting column.

[0015] In one possible implementation, the adjustment mechanism further includes a first limiting block and a second limiting block fixedly disposed on the outer wall of the connecting column, and a stop block fixedly disposed on the fixing plate, with one end of the stop block abutting against the first limiting block or the second limiting block.

[0016] In one possible implementation, the adjustment mechanism further includes a fixed ring fixedly disposed within the housing, a limiting ring fixedly disposed within the fixed ring, a connecting column movably passing through the limiting ring, and one end of the first limiting block and the second limiting block respectively abutting against the end wall of the limiting ring.

[0017] In one possible implementation, the limiting ring has a first relief groove for the first limiting block to pass through, and the limiting ring has a second relief groove for the second limiting block to pass through.

[0018] In one possible implementation, the adjusting mechanism further includes a first connecting ring and a second connecting ring fixedly disposed on the outer wall of the connecting column. The diameter of the first connecting ring is smaller than the diameter of the second connecting ring. One end of the first connecting ring abuts against the end wall of the limiting ring, and one end of the second connecting ring abuts against the end wall of the fixing ring.

[0019] In one possible implementation, the cross-section of the adjusting rod gradually decreases from one end to the other.

[0020] In one possible implementation, the auxiliary support includes a rotating rod rotatably disposed at the lower end of the housing, a support plate fixedly disposed on the rotating rod, a pin fixedly disposed on the support plate, and an auxiliary wheel rotatably disposed on the pin. One end of the auxiliary wheel abuts against the ground, and one end of the adjusting rod is fixedly connected to the support plate.

[0021] In one possible implementation, the auxiliary support further includes a first limiting plate fixedly disposed on the support plate and a second limiting plate fixedly disposed on the bottom of the housing, with the first limiting plate abutting against the second limiting plate.

[0022] In one possible implementation, the auxiliary support also includes a third limiting plate fixedly mounted on the support plate, and the outer shell has a limiting groove that cooperates with the third limiting plate.

[0023] In summary, this application includes the following beneficial technical effects: by rotating the knob, the connecting column is rotated, allowing the adjusting rod to switch positions within grooves of different depths. Since the auxiliary support abuts against the ground or carpet, the thrust is reversed, causing the connecting column to move the outer casing upwards, thus adjusting the height of the outer casing relative to the rollers. This allows the outer casing to be adjusted according to carpet heights, facilitating the vacuum cleaner and rollers to work on carpets, thereby reducing physical exertion, improving work efficiency, and enhancing carpet cleaning effectiveness. Attached Figure Description

[0024] Figure 1 This is an overall schematic diagram based on an embodiment of this application;

[0025] Figure 2 This is a structural diagram of a part of an embodiment, mainly showing the floor brush assembly;

[0026] Figure 3 This is a structural schematic diagram of a part of the embodiment, mainly showing the adjustment mechanism one;

[0027] Figure 4 yes Figure 3 An enlarged schematic diagram of part A;

[0028] Figure 5 This is a structural schematic diagram of a part of the embodiment, mainly showing the second adjustment mechanism;

[0029] Figure 6 yes Figure 5 An enlarged schematic diagram of part B;

[0030] Figure 7 This is a structural schematic diagram of a part of the embodiment, mainly showing the adjustment mechanism three;

[0031] Figure 8 yes Figure 7An enlarged schematic diagram of part C;

[0032] Figure 9 This is a structural schematic diagram of a part of the embodiment, mainly showing the knob and connecting post;

[0033] Figure 10 This is a cross-sectional schematic diagram as part of an embodiment, mainly showing the adjustable height of the floor brush assembly.

[0034] Reference numerals: 1. Main unit assembly; 2. Floor brush assembly; 3. Connector; 4. Housing; 5. Roller; 6. Auxiliary support; 7. Knob; 8. Connecting post; 9. Adjusting rod; 10. Through hole; 11. Groove; 12. Fixing plate; 13. Stop rod; 14. Stop groove; 15. Fixing ring; 16. Limiting ring; 17. First limiting block; 18. Second limiting block; 19. Stop block; 20. First relief groove; 21. Second relief groove; 22. First connecting ring; 23. Second connecting ring; 24. Third connecting ring; 25. Rotating rod; 26. Support plate; 27. Pin; 28. Auxiliary wheel; 29. ​​First limiting plate; 30. Second limiting plate; 31. Third limiting plate; 32. Limiting groove. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0036] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0037] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0038] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] Reference Figure 1-10 A height-adjustable roller brush vacuum cleaner includes a main unit assembly 1, a floor brush assembly 2, a connector 3, and an adjustment mechanism. The main unit assembly 1 is rotatably mounted on the floor brush assembly 2 via the connector 3. The structure of the main unit assembly 1, the floor brush assembly 2, and the connector 3, as well as the working principle of the vacuum cleaner, are existing technologies and will not be described in detail here. For example, patent publication number CN202420705161.X is available. The floor brush assembly 2 has a housing 4, a roller brush, and rollers 5. The roller brush is rotatably mounted inside the housing 4 and is used to clean impurities on the floor or carpet. The working principle of how the roller brush cleans impurities is existing technology. The rollers 5 are used to assist the vacuum cleaner in moving, and the housing 4 can rotate relative to the rollers 5. The adjustment mechanism is located on the housing 4 and is used to adjust the height of the housing 4 relative to the rollers 5. Specifically, the adjustment mechanism includes an auxiliary support 6, a knob 7, a connecting column 8, and an adjustment rod 9. The auxiliary support 6 is located at the bottom of the outer casing 4, which has a through hole 10. The connecting column 8 can rotate relative to the through hole 10. The knob 7 is fixed to the connecting column 8, which moves through the through hole 10 and has one end fixedly connected to the knob 7. The adjustment rod 9 is fixed to the auxiliary support 6. One end of the auxiliary support 6 abuts against the ground, and the side wall of one end of the connecting column 8 has several grooves 11. One end of the adjustment rod 9 abuts against and is inserted into the inner wall of the grooves 11. The grooves 11 have different depths, and the depth between adjacent grooves 11 gradually increases or decreases for ease of use. The adjustment height range a of the floor brush assembly 2 relative to the roller 5 is 3.5-13.5mm. The height difference for tiles and wood flooring is 7.0mm; for short blankets, it is 3.5mm; for medium blankets, it is 10.0mm; and for long blankets, it is 13.5mm. By rotating the knob 7, the connecting column 8 is rotated, causing the adjusting rod 9 to switch positions within the grooves 11 of different depths. Since the auxiliary support 6 abuts against the ground or carpet, the thrust is reversed, causing the connecting column 8 to move the outer casing 4 upwards together. This causes the outer casing 4 to rotate relative to the roller 5, thereby adjusting the height of the outer casing 4. This allows the outer casing 4 to be adjusted according to the carpet height, making it easier for the vacuum cleaner and roller 5 to work on the carpet. This reduces physical effort, increases work efficiency, and improves the cleanliness of the carpet.

[0040] The cross-section of the adjusting rod 9 gradually decreases from one end to the other, or the adjusting rod 9 adopts a tapered structure.

[0041] The adjustment mechanism also includes a fixed plate 12, a stop rod 13, and stop grooves 14. The fixed plate 12 is fixedly installed inside the outer casing 4, and the stop rod 13 is fixedly installed on the fixed plate 12. Several stop grooves 14 that cooperate with the stop rod 13 are opened on the outer wall of the connecting column 8. The stop rod 13 has a certain elasticity. The number of stop grooves 14 is the same as the number of grooves 11, and each stop groove 14 corresponds to a groove 11 of different depths. By rotating the knob 7, the stop rod 13 is inserted into the stop groove 14. According to the required height, the stop rod 13 is inserted into different stop grooves 14, thereby changing the cooperation between the grooves 11 of different depths and the adjusting rod 9.

[0042] The adjustment mechanism also includes a fixed ring 15, a limiting ring 16, a first limiting block 17, a second limiting block 18, and a stop block 19. The fixed ring 15 is fixedly disposed within the outer casing 4, the limiting ring 16 is fixedly disposed within the fixed ring 15, the connecting post 8 movably passes through the limiting ring 16, the first limiting block 17 and the second limiting block 18 are respectively fixedly disposed on the outer wall of the connecting post 8, one end of the fixing plate 12 is fixedly connected to the fixed ring 15, and the stop block 19 is fixedly disposed on the fixing plate 12. The first limiting block 17 and the second limiting block 18 abut against the end wall of the limiting ring 16 to prevent the limiting post 8 from disengaging from the limiting ring 16. The stop block 19 is located between the first limiting block 17 and the second limiting block 18, abutting against either the first limiting block 17 or the second limiting block 18 in the maximum and minimum height states, respectively, to limit the maximum or minimum height of the knob 7's torsional force.

[0043] The limiting ring 16 has a first relief groove 20 for the first limiting block 17 to pass through, and a second relief groove 21 for the second limiting block 18 to pass through. When it is necessary to disassemble or repair the knob 7, rotate the knob 7 so that the first limiting block 17 and the second limiting block 18 are respectively located in the first relief groove 20 and the second relief groove 21, thereby releasing the limitation on the connecting post 8 and allowing the knob 7 to be removed from the through hole 10.

[0044] The adjustment mechanism also includes a first connecting ring 22, a second connecting ring 23, and a third connecting ring 24; the first connecting ring 22, the second connecting ring 23, and the third connecting ring 24 are respectively fixed on the outer wall of the connecting column 8, and the first connecting ring 22, the second connecting ring 23, and the third connecting ring 24 are arranged from low to high in sequence. The inner diameter of the through hole 10 is larger than the outer diameter of the fixing ring 15; the inner diameter of the fixing ring 15 is larger than the outer diameter of the limiting ring 16; the inner diameter of the limiting ring 16 is larger than the outer diameter of the connecting post 8; the outer diameter of the limiting ring 16 is smaller than the outer diameter of the first connecting ring 22; the outer diameter of the first connecting ring 22 is smaller than the inner diameter of the second connecting ring 23; and the outer diameter of the second connecting ring 23 is smaller than the inner diameter of the third connecting ring 24. This causes one end of the first connecting ring 22 to abut against the end wall of the limiting ring 16, one end of the second connecting ring 23 to abut against the end wall of the fixing ring 15, and one end of the third connecting ring 24 to abut against the end wall of the through hole 10. This effectively limits one end of the connecting post 8.

[0045] The auxiliary support component 6 includes a rotating rod 25, a support plate 26, a pin 27, an auxiliary wheel 28, a first limiting plate 29, a second limiting plate 30, a third limiting plate 31, and a limiting groove 32. The rotating rod 25 is rotatably mounted on the lower end of the outer casing 4. The support plate 26 is fixedly mounted on the rotating rod 25. The pin 27 is fixedly mounted on the support plate 26. The auxiliary wheel 28 is rotatably mounted on the pin 27. One end of the auxiliary wheel 28 abuts against the ground. One end of the adjusting rod 9 is fixedly connected to the support plate 26. The first limiting plate 29 is fixedly mounted on the support plate 26. The second limiting plate 30 is fixedly mounted on the bottom of the outer casing 4. When the ground brush assembly 2 is adjusted to the highest position, the first limiting plate 29 will abut against the second limiting plate 30. The third limiting plate 31 is fixedly mounted on the support plate 26. The outer casing 4 has a limiting groove 32 for the third limiting plate 31 to be inserted. The auxiliary wheels 28 and rollers 5 facilitate the vacuum cleaner's movement on carpets and provide support for the floor brush assembly 2. The first limiting plate 29 and the second limiting plate 30 limit the highest position of the floor brush assembly 2. The third limiting plate 31 limits the horizontal movement of the floor brush assembly 2.

[0046] In the description of the embodiments of this application, it should be noted that the terms "inner" and "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0047] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0048] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A roll brush type vacuum cleaner having a height adjustment, characterized by: include: A floor brush assembly (2) has a housing (4), a roller brush, and a roller (5), wherein the housing (4) rotates relative to the roller (5); The main unit (1) is rotatably mounted on the floor brush unit (2) via the connector (3); An adjustment mechanism is provided for adjusting the height of the floor brush assembly (2) relative to the roller (5); The adjustment mechanism includes an auxiliary support (6) on the outer shell (4), a knob (7) on the outer shell (4) for rotation, a connecting column (8) fixed on the knob (7), and an adjustment rod (9) fixed on the auxiliary support (6). One end of the auxiliary support (6) abuts against the ground, and a plurality of grooves (11) are provided on the side wall of one end of the connecting column (8). One end of the adjustment rod (9) abuts against and is inserted into the inner wall of the groove (11), and the depth between adjacent grooves (11) gradually increases.

2. The height-adjustable roller brush vacuum cleaner according to claim 1, characterized in that: The adjustment mechanism also includes a fixing plate (12) fixedly disposed inside the outer shell (4) and a stop rod (13) fixedly disposed on the fixing plate (12). The connecting column (8) is provided with a plurality of stop grooves (14) that cooperate with the stop rod (13).

3. The height-adjustable roller brush vacuum cleaner according to claim 2, characterized in that: The adjustment mechanism further includes a first limiting block (17) and a second limiting block (18) fixedly disposed on the outer wall of the connecting column (8), and a stop block (19) fixedly disposed on the fixing plate (12), one end of the stop block (19) abutting against the first limiting block (17) or the second limiting block (18).

4. The height-adjustable roller brush vacuum cleaner according to claim 3, characterized in that: The adjustment mechanism further includes a fixing ring (15) fixedly disposed in the outer shell (4) and a limiting ring (16) fixedly disposed in the fixing ring (15). The connecting column (8) movably passes through the limiting ring (16). One end of the first limiting block (17) and the second limiting block (18) respectively abuts against the end wall of the limiting ring (16).

5. The height-adjustable roller brush vacuum cleaner according to claim 4, characterized in that: The limiting ring (16) has a first relief groove (20) for the first limiting block (17) to pass through, and the limiting ring (16) has a second relief groove (21) for the second limiting block (18) to pass through.

6. The height-adjustable roller brush vacuum cleaner according to claim 4, characterized in that: The adjustment mechanism further includes a first connecting ring (22) and a second connecting ring (23) fixedly disposed on the outer wall of the connecting column (8). The diameter of the first connecting ring (22) is smaller than the diameter of the second connecting ring (23). One end of the first connecting ring (22) abuts against the end wall of the limiting ring (16), and one end of the second connecting ring (23) abuts against the end wall of the fixing ring (15).

7. The height-adjustable roller brush vacuum cleaner according to claim 1, characterized in that: The cross-section of the adjusting rod (9) gradually decreases from one end to the other.

8. The height-adjustable roller brush vacuum cleaner according to claim 1, characterized in that: The auxiliary support (6) includes a rotating rod (25) rotatably disposed at the lower end of the outer shell (4), a support plate (26) fixedly disposed on the rotating rod (25), a pin (27) fixedly disposed on the support plate (26), and an auxiliary wheel (28) rotatably disposed on the pin (27). One end of the auxiliary wheel (28) abuts against the ground, and one end of the adjusting rod (9) is fixedly connected to the support plate (26).

9. The height-adjustable roller brush vacuum cleaner according to claim 8, characterized in that: The auxiliary support (6) also includes a first limiting plate (29) fixedly disposed on the support plate (26) and a second limiting plate (30) fixedly disposed at the bottom of the outer shell (4), wherein the first limiting plate (29) and the second limiting plate (30) abut against each other.

10. The height-adjustable roller brush vacuum cleaner according to claim 8, characterized in that: The auxiliary support (6) also includes a third limiting plate (31) fixed on the support plate (26), and the outer shell (4) has a limiting groove (32) that cooperates with the third limiting plate (31).

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