Vacuum cleaner floor brush, vacuum cleaner

Abstract

This application provides a vacuum cleaner floor brush and a vacuum cleaner. The vacuum cleaner floor brush may include a brush body, a rotating cover, a connector, and a flexible tube. The brush body includes a lower cover, which includes a first air intake facing the ground, a second air intake for connecting to the vacuum cleaner main unit, and a vent. The rotating cover is rotatably connected to the brush body and configured to cover or move away from the vent. One end of the connector is rotatably connected to the brush body and is connected to the second air intake via the flexible tube; the other end of the connector is used to connect to the vacuum cleaner main unit. The connector is configured to couple with the rotating cover such that when the other end of the connector is tilted upward from its initial state, the rotating cover moves toward and covers the vent.

Description

Technical Field

[0001] This application relates to the field of cleaning device technology, and in particular to vacuum cleaner floor brushes and vacuum cleaners. Background Technology

[0002] Existing vacuum cleaners may include a floor brush, a push rod, and a main unit. Compared to smooth floors, the floor brush is more difficult to move when carpets are laid. Furthermore, the inventors discovered that the resistance in the forward motion is greater than the resistance in the backward motion, making it difficult to push forward. Lowering the suction level or other measures reduces the overall dust removal efficiency, making it difficult to balance the pushing and pulling resistance with the dust removal capacity, thus requiring improvement in the user experience. Utility Model Content

[0003] In order to solve or alleviate at least one of the technical problems mentioned in the background art, this application provides a vacuum cleaner floor brush and a vacuum cleaner.

[0004] The vacuum cleaner floor brush according to this application includes: a floor brush body, the floor brush body including a lower cover, the lower cover including a first air intake facing the ground, a second air intake for connecting to the vacuum cleaner main unit, and an air vent; a rotating cover plate, the rotating cover plate being rotatably connected to the floor brush body and configured to cover or move away from the air vent; a connector and a flexible tube, one end of the connector being rotatably connected to the floor brush body and the other end of the connector being connected to the second air intake via the flexible tube, the other end of the connector being used to connect to the vacuum cleaner main unit, the connector being configured to couple with the rotating cover plate such that when the other end of the connector is tilted upward from the initial state, the rotating cover plate moves toward and covers the air vent.

[0005] In one embodiment, the vacuum cleaner floor brush includes a top cover, which is rotatably connected to the floor brush body. One end of the top cover abuts against the connector, and the other end abuts against the rotating cover plate, so that the movement of the connector can drive the rotating cover plate to move.

[0006] In one embodiment, the connector is provided with a guide post, and the top cover is provided with a guide groove to accommodate the guide post, such that when the connector rotates about a first axis relative to the floor brush body, the guide post can drive one end of the top cover to move in the guide groove, thereby causing the top cover to rotate about a second axis located between its one end and the other end relative to the floor brush body, the first axis being parallel to the second axis.

[0007] In one embodiment, the first shaft is located at the bottom of one end of the connector, and when the connector is in the initial state, the guide post is located obliquely above the first shaft away from the brush body, such that when the other end of the connector is tilted up, the height of the guide post is further increased.

[0008] In one embodiment, the guide groove is formed as an arc-shaped channel. When the other end of the connector is tilted upward, the guide post causes one end of the top cover to rise and the other end of the top cover to fall. The other end of the top cover causes the rotating cover plate to rotate and seal the vent.

[0009] In one embodiment, an elastic element is provided between the rotating cover and the brush body, and the other end of the elastic element and the top cover respectively apply opposite torques to the rotating cover.

[0010] In one embodiment, the rotating cover is rotatably connected to the brush body about a third axis, the third axis being parallel to the first axis.

[0011] In one embodiment, the vent is located on the top surface of the lower cover.

[0012] The vacuum cleaner provided in this application includes the vacuum cleaner floor brush as described above.

[0013] In one embodiment, the vacuum cleaner further includes: a push rod formed as a hollow rod, one end of which is connected to the other end of the connector; and a vacuum cleaner main unit for providing negative pressure, the other end of which is connected to the vacuum cleaner main unit.

[0014] When users push the vacuum cleaner floor brush forward, they often subconsciously press down the push rod to keep the end of the connector near the push rod in its initial state, reducing forward resistance. Conversely, when pulling the vacuum cleaner floor brush backward, they often subconsciously lift the push rod to raise the end of the connector near the push rod, improving suction efficiency when pulling backward. Therefore, the vacuum cleaner floor brush provided in this application reduces forward resistance while maintaining suction power when moving backward, thus maintaining a balance between dust removal ability and movement resistance, and improving the user experience. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of a vacuum cleaner floor brush according to an embodiment of this application is shown.

[0016] Figure 2 A cross-sectional view of a vacuum cleaner floor brush according to an embodiment of this application is shown.

[0017] Figure 3 A cross-sectional view of a vacuum cleaner floor brush according to an embodiment of this application is shown from another perspective. Figure 3 The flexible tube has been removed.

[0018] Figure 4 A top view structural schematic diagram of the lower cover of a vacuum cleaner floor brush according to an embodiment of this application is shown.

[0019] Figure 5 A structural schematic diagram of the lower cover of a vacuum cleaner floor brush according to an embodiment of this application is shown from a bottom view.

[0020] Figure 6 A schematic diagram of the structure of the lower cover and rotating cover of a vacuum cleaner floor brush according to an embodiment of this application is shown.

[0021] Figure 7 A schematic diagram is shown showing the right end of the connector of the vacuum cleaner floor brush according to an embodiment of this application with the vent covered.

[0022] Figure 8 A schematic diagram is shown showing the right end of the connector of the vacuum cleaner floor brush according to an embodiment of this application in its initial state and the air vent is open.

[0023] Figure 9 A top view structural schematic diagram of the top cover of a vacuum cleaner floor brush according to an embodiment of this application is shown.

[0024] Figure 10 A bottom-view structural schematic diagram of the top cover of a vacuum cleaner floor brush according to an embodiment of this application is shown.

[0025] Figure 11 A schematic diagram of the connector of a vacuum cleaner floor brush according to an embodiment of this application is shown.

[0026] Figure 12 A simplified diagram showing the kinematic relationship of the connector, top cover, and rotating cover of a vacuum cleaner floor brush according to an embodiment of this application is provided.

[0027] Explanation of reference numerals in the attached figures

[0028] 100 bottom cover

[0029] 110 First Intake Port

[0030] 120 Second Intake Port

[0031] 130 Vent

[0032] 200 Rotating Cover

[0033] 210 Cap section

[0034] 220 Elastic element abutment part

[0035] 300 connector

[0036] 310 guide column

[0037] 320 connector first axis

[0038] 330 connector second axis

[0039] 400 flexible pipe

[0040] 500 top cover

[0041] 510 Guide Groove

[0042] 610 First Axis

[0043] 620 Second Axis

[0044] 630 Third Axis

[0045] 700 elastic element

[0046] 800 brush strip

[0047] 900 top cover Detailed Implementation

[0048] Exemplary embodiments of this application are described below with reference to the accompanying drawings. It should be understood that these specific descriptions are for teaching those skilled in the art how to implement this application only, and are not intended to exhaustively describe all possible methods of this application, nor to limit the scope of this application.

[0049] This application provides a vacuum cleaner floor brush and a vacuum cleaner.

[0050] See Figure 1 , Figure 2 , Figure 3 A vacuum cleaner floor brush may include a floor brush body, a rotating cover plate 200, a connector 300, and a flexible tube 400.

[0051] See Figure 3 , Figure 4 , Figure 5 The floor brush body may include a lower cover 100, which includes a first air intake 110 facing the ground (carpet, hard floor, or other surface to be cleaned), a second air intake 120 for connecting to the vacuum cleaner main unit, and an air vent 130. The air vent 130 may be located on the top surface of the lower cover 100.

[0052] See Figure 3 , Figure 6 The rotating cover 200 is rotatably connected to the floor brush body and is configured to cover or move away from the vent 130. When the rotating cover 200 covers the vent 130, the vacuum level between the vacuum cleaner floor brush and the ground is relatively high, resulting in better dust collection. When the rotating cover 200 moves away from the vent 130, the vacuum level between the vacuum cleaner floor brush and the ground decreases, thereby reducing the moving resistance of the vacuum cleaner floor brush.

[0053] See Figure 2One end of connector 300 (left end in the figure) is rotatably connected to the floor brush body, and the other end of connector 300 is connected to the second air intake 120 via flexible tube 400. The other end of connector 300 (right end in the figure) is used to connect to the vacuum cleaner main unit. More specifically, the vacuum cleaner may include a push rod, which is formed as a hollow rod, and the other end of connector 300 is connected to the vacuum cleaner main unit via the push rod.

[0054] The connector 300 is configured to couple with the rotating cover 200 such that when the other end of the connector 300 is tilted upward from its initial state, the rotating cover 200 moves toward and seals the vent 130 (e.g., Figure 7 (As shown); when the other end of connector 300 returns to its initial state, the rotating cover 200 moves away from the vent 130 (as shown). Figure 8 (As shown). For example, the angle between the first axis 320 of the connector at the other end of the connector 300 and the horizontal plane can vary from 20° to 80°. It should be understood that when the angle between the first axis 320 and the horizontal plane is 20°, the connector 300 is in its initial state, with one end of the connector approximately parallel to the horizontal plane and the other end at an angle of 20° to the horizontal plane.

[0055] It should be understood that users often subconsciously press down the push rod when pushing the floor brush of the vacuum cleaner forward, keeping the connector 300 in its initial state (e.g., Figure 8 As shown), when pulling the vacuum cleaner's floor brush back using the push rod, one often subconsciously lifts the push rod, causing the other end of connector 300 to lift up (as shown). Figure 7 (As shown). Thus, this application couples the sealing of the vent 130 with the state of the connector 300, effectively achieving the effect of dynamically adjusting the vacuum level between the vacuum cleaner's floor brush and the ground according to the objective travel status. This reduces the forward resistance of the vacuum cleaner's floor brush, maintains the suction power when moving backward, maintains the balance between dust removal ability and movement resistance, and improves the user experience.

[0056] The applicant also understands a vacuum cleaner floor brush design that includes an auxiliary block on the bottom of the brush. The contact between the auxiliary block and the ground determines the brush's movement (forward or backward), and adjusts the vent's closure accordingly. However, the auxiliary block can only determine the movement after the brush has moved. Therefore, in the initial state, such as when intending to move forward, the vent is closed, and it can only be opened after the brush has moved forward, resulting in significant resistance to overcome in the initial state. This application, however, actively controls the opening and closing of the vent 130 by controlling the rotation angle of the active control connector 300, avoiding the significant resistance required in the initial state and thus improving the user experience.

[0057] In one implementation, see Figure 3 , Figure 9 , Figure 10 , Figure 12The vacuum cleaner floor brush includes a top cover 500, which is rotatably connected to the floor brush body. One end of the top cover 500 ( Figure 3 The right end of the middle part (in the middle part) abuts against connector 300, and the other end (in the middle part) Figure 3 The left end of the connector 300 abuts against the rotating cover 200, so that the movement of the connector 300 can drive the rotating cover 200 to move. Of course, the connector 300 and the rotating cover 200 can also be coupled in other ways, and this application does not limit the specific coupling method.

[0058] In one implementation, see Figure 3 , Figure 10 , Figure 11 , Figure 12 The connector 300 is provided with a guide post 310, and the top cover 500 is provided with a guide groove 510 to accommodate the guide post 310, so that the connector 300 rotates around the first axis 610 (e.g., Figure 11 As shown, when the guide post 310 rotates relative to the main body of the floor brush, it can drive one end of the top cover 500 in the guide groove 510. Figure 10 The right end of the top cover 500 moves, causing the top cover 500 to rotate relative to the brush body around the second axis 620. The first axis 610 is parallel to the second axis 620. The second axis 620 is located between one end and the other end of the top cover 500, so that when one end of the top cover 500 is raised, the other end falls.

[0059] Furthermore, the guide groove 510 is formed as an arc-shaped channel. By adjusting the curvature of the arc-shaped channel, the correspondence between the rotation amplitude of the connector 300 and the rotation amplitude of the top cover 500 can be adjusted, so that when the connector 300 rotates, the top cover 500 can be rotated along with it.

[0060] See Figure 8 , Figure 9 , Figure 10 , Figure 11 , Figure 12 The first shaft 610 is located at the bottom of one end of the connector 300, and when the connector 300 is in its initial state (i.e., when the second shaft 330 at one end of the connector 300 is basically parallel to the horizontal plane), the guide post 310 is located obliquely above the first shaft 610 away from the brush body, so that when the other end of the connector 300 is tilted up, the height of the guide post 310 is increased, and thus the guide post 310 causes one end of the top cover 500 ( Figure 10 The right end of the top cover is raised, and the other end of the top cover is 500. Figure 10 The left end of the top cover 500 is lowered, causing the rotating cover 200 to rotate and seal the vent 130. See also... Figure 10The arc-shaped channel can be configured with a left-lower, right-higher shape (higher near the connector 300, lower away from the connector 300). For example, the arc-shaped channel can be a channel with uniform curvature. Alternatively, the arc-shaped channel can be a channel with variable curvature, so that when the guide post 310 is positioned directly above the first axis 610 and continues to rotate around the first axis 610, the movement trajectory of the guide post 310 can still drive the arc-shaped channel and the top cover 500 to rotate. Therefore, in this case, the guide post 310 does not need to be positioned diagonally above the first axis 610 in the initial state; for example, it can be positioned directly above it.

[0061] In one implementation, see Figure 3 , Figure 7 , Figure 8 , Figure 12 An elastic element 700 is provided between the rotating cover plate 200 and the main body of the floor brush, and the other end of the elastic element 700 and the top cover 500 ( Figure 3 The left end of the connector 300 applies opposite torques to the rotating cover 200. This causes the other end of the connector 300 ( Figure 3 When the right end of the top cover 500 returns to its initial state from its tilted position, the guide post 310 causes one end of the top cover 500 ( Figure 3 The right end of the top cover is lowered, and the other end of the top cover is 500. Figure 3 The left end of the middle rises, and the elastic element 700 causes the rotating cover 200 to rotate away from the vent 130.

[0062] For example, the elastic element 700 can be a spring. It should be understood that... Figure 3 The elastic element 700 in the middle should be as follows Figure 7 , Figure 8 As shown, it is in a compressed state and located on the underside of the rotating cover 200, so it can be ignored. Figure 3 The die-cutting behavior of the 700mm elastic element. For more details, see [link to documentation]. Figure 6 The rotating cover 200 may include a sealing part 210 and an elastic member abutment part 220. The sealing part 210 is used to seal the vent 130, and the elastic member 700 may be disposed below the elastic member abutment part 220.

[0063] In one implementation, see Figure 6 The rotating cover plate 200 is rotatably connected to the brush body around the third axis 630, which is parallel to the first axis 610. That is, the first axis 610, the second axis 620, and the third axis 630 can be parallel to each other.

[0064] In one implementation, see Figure 1 The floor brush body may also include an upper cover 900, and the upper cover 900 and the lower cover 100 together constitute the outer shell of the floor brush body. For example... Figure 6 As shown, other related components of the vacuum cleaner's floor brush can be installed between the upper cover 900 and the lower cover 100. Figure 6(Structure shown on the far right).

[0065] In one implementation, see Figure 6 The vent 130 can be configured as a long strip, a wave shape, or multiple long strips or waves arranged side by side. The opening size of the vent 130 can be controlled according to the motor power of the vacuum cleaner main unit. For example, when using a low-power motor, the opening size of the vent 130 can be set to no more than, for example, 30 square millimeters. When using a high-power motor, the opening size of the vent 130 can be set to no less than, for example, 100 square millimeters.

[0066] In one implementation, see Figure 2 The brush body may also include a retractable brush bar 800. For example, in situations where the friction of a hard floor is low, the brush bar 800 can be lowered to increase cleaning effectiveness. In situations where the friction of a carpet is high, the brush bar 800 can be raised to avoid further increasing travel resistance.

[0067] The vacuum cleaner provided in this application may include the aforementioned vacuum cleaner floor brush.

[0068] In one embodiment of this application, the vacuum cleaner may further include a push rod and a vacuum cleaner main unit. The push rod may be formed as a hollow rod, with one end connected to the other end of the connector 300 and the other end connected to the vacuum cleaner main unit. The vacuum cleaner main unit is used to provide negative pressure.

[0069] The above are preferred embodiments of this application. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A vacuum cleaner floor brush, characterized in that, include: A floor brush body, the floor brush body including a lower cover, the lower cover including a first air intake facing the ground, a second air intake for connecting to the vacuum cleaner main unit and an air vent; A rotating cover plate, which is rotatably connected to the floor brush body and configured to cover or leave the vent. The connector has one end rotatably connected to the floor brush body and the other end connected to the second air intake, while the other end is used to connect to the vacuum cleaner main unit. The connector is configured to couple with the rotating cover plate, and when the other end of the connector is tilted upward from the initial state, the rotating cover plate moves toward and seals the vent.

2. The vacuum cleaner floor brush according to claim 1, characterized in that, The vacuum cleaner floor brush includes a top cover, which is rotatably connected to the floor brush body. One end of the top cover abuts against the connector, and the other end abuts against the rotating cover plate, so that the movement of the connector can drive the rotating cover plate to move.

3. The vacuum cleaner floor brush according to claim 2, characterized in that, The connector is provided with a guide post, and the top cover is provided with a guide groove to accommodate the guide post, so that when the connector rotates about a first axis relative to the floor brush body, the guide post can drive one end of the top cover to move in the guide groove, thereby causing the top cover to rotate about a second axis located between its one end and the other end relative to the floor brush body, the first axis being parallel to the second axis.

4. The vacuum cleaner floor brush according to claim 3, characterized in that, The first shaft is located at the bottom of one end of the connector, and when the connector is in the initial state, the guide post is located diagonally above the first shaft away from the brush body, so that when the other end of the connector is tilted up, the height of the guide post is further increased.

5. The vacuum cleaner floor brush according to claim 3, characterized in that, The guide groove is formed into an arc-shaped channel. When the other end of the connector is tilted upward, the guide post causes one end of the top cover to rise and the other end of the top cover to fall. The other end of the top cover causes the rotating cover plate to rotate and seal the vent.

6. The vacuum cleaner floor brush according to claim 3, characterized in that, An elastic element is provided between the rotating cover plate and the floor brush body, and the other end of the elastic element and the top cover respectively apply opposite torques to the rotating cover plate.

7. The vacuum cleaner floor brush according to claim 3, characterized in that, The rotating cover plate is rotatably connected to the floor brush body about a third axis, which is parallel to the first axis.

8. The vacuum cleaner floor brush according to claim 1, characterized in that, The vent is located on the top surface of the lower cover.

9. A vacuum cleaner, characterized in that, Includes the vacuum cleaner floor brush according to any one of claims 1 to 8.

10. The vacuum cleaner according to claim 9, characterized in that, The vacuum cleaner also includes: A push rod, which is formed as a hollow rod, with one end of the push rod connected to the other end of the joint; The vacuum cleaner main unit is used to provide negative pressure, and the other end of the push rod is connected to the vacuum cleaner main unit.

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