A self-cleaning structure for a vacuum cleaner

Abstract

This utility model discloses a self-cleaning structure for a vacuum cleaner. A cover is fixedly mounted on the base. The roller brush mechanism includes a mounting plate, a roller brush assembly, and a drive assembly. One end of the mounting plate is hinged to the base. The roller brush assembly is rotatably mounted between a pair of mounting plates. The drive assembly is mounted on the mounting plate and is driven by the roller brush assembly. The lifting mechanism includes a drive unit and a support unit. The drive unit is mounted on either the base or the roller brush mechanism. The support unit is driven by the other mounting plate, which lifts the side of the mounting plate away from its hinge position, causing the roller brush assembly to abut against the cover. In this utility model, the drive unit, either by its own action or with the aid of external force, drives the support unit to lift the side of the mounting plate with the roller brush assembly, causing the roller brush assembly to abut against the cover. The roller brush assembly rotates and rubs against the cover, dislodging any remaining dust and achieving a self-cleaning action.

Description

Technical Field

[0001] This utility model relates to the field of vacuum cleaner device technology, and in particular to a self-cleaning structure for a vacuum cleaner. Background Technology

[0002] Vacuum cleaners use their roller brushes to clean work surfaces (such as floors). During the cleaning process, dust sucked into the vacuum cleaner by negative pressure may adhere to the roller brush assembly, or dust may also adhere to the roller brush assembly during contact with the work surface. Therefore, the roller brush assembly will accumulate a lot of dust after long-term use. If the dust cannot be effectively removed, it will affect the performance of the machine itself and also affect its appearance.

[0003] Currently, few vacuum cleaner roller brushes on the market have self-cleaning functions. In existing technology, such as the vacuum cleaner roller brush with self-cleaning function disclosed in application number 202322895113.X, the roller brush body, outer shell, and collection frame are described. The roller brush body achieves self-cleaning through contact with a scraper strip set inside the outer shell. However, the continuous contact and friction between the roller brush body and the scraper strip may affect the cleaning of the working surface by the roller brush body, and it cannot achieve intermittent self-cleaning or self-cleaning outside of the roller brush body's working time. Utility Model Content

[0004] The purpose of this utility model is to provide a self-cleaning structure for a vacuum cleaner. The drive unit drives the support unit to lift the side of the mounting plate with the roller brush assembly. After the roller brush assembly is raised, it abuts against the cover and is driven by the drive unit to rotate and rub against the cover. This can knock off the dust that has not been cleaned on the roller brush assembly, thus realizing the self-cleaning action of the roller brush assembly.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a self-cleaning structure for a vacuum cleaner, comprising:

[0006] The base has a cover fixed on it.

[0007] A roller brush mechanism includes a mounting plate, a roller brush assembly, and a drive assembly. One end of the mounting plate is hinged to the base. The roller brush assembly is rotatably disposed between a pair of mounting plates. The drive assembly is disposed on the mounting plate and is drively connected to the roller brush assembly.

[0008] The lifting mechanism includes a drive unit and a support unit. The drive unit is disposed on one of the base or the roller brush mechanism. The support unit is pulsatorically connected to the drive unit. The support unit drives the other of the base or the roller brush mechanism to lift the side of the mounting plate away from its hinge position so that the roller brush assembly abuts against the cover.

[0009] As a further optimization, the drive assembly includes a first motor and a first transmission component. The first motor is mounted on the mounting plate, and the first transmission component is located at the output end of the first motor and connected to the roller brush assembly.

[0010] As a further optimization, the first transmission component includes a first driving wheel, a first driven wheel, and a first belt. The first driving wheel is disposed at the output end of the first motor, the first driven wheel is disposed on the roller brush assembly, and the first belt is sleeved on the first driving wheel and the first driven wheel.

[0011] As a further optimization, the drive unit is disposed on the base, and the drive unit includes a second motor and a second transmission component. The second motor is disposed on the base, and the second transmission component is disposed at the output end of the second motor. The support unit includes a first cam and a baffle. The baffle is disposed on the mounting plate. The first cam is disposed on the second transmission component and, after being driven to rotate, abuts against the baffle and lifts the baffle.

[0012] As a further optimization, the second transmission component includes a second driving wheel, a second driven wheel, and a second belt. The second driving wheel is disposed at the output end of the second motor, the second driven wheel is disposed on the base, and the second belt is sleeved on the second driving wheel and the second driven wheel.

[0013] As a further optimization, the first motor is a reversible motor, the drive unit is disposed on the drive assembly, the drive unit includes a ratchet which is disposed on the first driving wheel or the first driven wheel, the support unit includes a second cam that cooperates with the ratchet, the second cam is rotatably disposed on the base via a rotating shaft, the rotating shaft is provided with an elastic element, the two ends of the elastic element abut against the second cam and the base respectively, and the ratchet can be rotated independently or the ratchet and the second cam can be rotated synchronously through the cooperation of the ratchet and the ratchet teeth on the second cam.

[0014] As a further optimization, the ratchet is mounted on the first driven wheel, which can relatively easily lift the mounting plate and the roller brush assembly.

[0015] As a further optimization, the elastic element is a spring.

[0016] As a further optimization, the cover is provided with multiple ribs to facilitate the removal of dust from the roller brush assembly.

[0017] As a further optimization, the cover is made of a transparent material, which can form a viewing window, and the viewing window can also be cleaned when it rotates and rubs against the roller brush assembly.

[0018] Compared with the prior art, the present invention has the following beneficial effects: the driving part drives the supporting part by its own action or with the help of external force, so that the supporting part lifts the side of the mounting plate with the roller brush assembly. After the roller brush assembly is raised, it abuts against the cover and is driven by the driving part to rotate and rub against the cover, which can knock off the dust that has not been sucked up on the roller brush assembly, thus realizing the self-cleaning action of the roller brush assembly. Attached Figure Description

[0019] Figure 1 This is a structural diagram of one embodiment of the present invention.

[0020] Figure 2 This is a structural diagram of the roller brush mechanism mounted on the base in one embodiment of the present invention.

[0021] Figure 3 This is a structural diagram of the lifting mechanism in one embodiment of the present invention.

[0022] Figure 4 This is a structural diagram of another embodiment of the present invention.

[0023] Figure 5 This is a structural diagram of the lifting mechanism in another embodiment of the present invention.

[0024] Figure 6 This is a bottom view structural diagram of the cover of this utility model. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] like Figures 1 to 3As shown, a self-cleaning structure for a vacuum cleaner includes a base 10, a roller brush mechanism 30, and a lifting mechanism 40. A cover 20 is fixedly mounted on the base 10, and a space for accommodating the roller brush assembly is formed inside the cover 20. The roller brush mechanism 30 includes a mounting plate 31, a roller brush assembly 32, and a drive assembly 33. Preferably, there is a pair of mounting plates 31, one end of which is hinged to the base 10. Specifically, the mounting plate 31 includes a plate body 311 and a rotating plate 312 with a through hole disposed at one end of the plate body 311. A first rotating shaft 101 is provided on the base 10, and the rotating plate 312 is rotatably sleeved on the base 10 through its through hole. On the first rotating shaft 101, the mounting plate 31 can rotate relative to the base 10. The roller brush assembly 32 is rotatably disposed between a pair of mounting plates 31 (i.e., plate bodies 311). The driving assembly 33 is preferably disposed on one of the mounting plates 31 and is connected to the roller brush assembly 32 in a transmission manner. The lifting mechanism 40 includes a driving part 41 and a supporting part 42. In one embodiment, the driving part 41 is disposed on the base 10, and the supporting part 42 is connected to the driving part 41 in a transmission manner. The supporting part 42 lifts the side of the mounting plate 31 away from its hinge position via the driving support roller brush mechanism 30 so that the roller brush assembly 32 abuts against the cover 20.

[0027] In the above embodiments, the drive unit 41 causes the support unit 42 to lift one side of the mounting plate 31. During the lifting process of the mounting plate 31, the roller brush assembly 32 disposed on it also rises relative to the base 10 and comes into contact with the cover 20. When the roller brush assembly 32 comes into contact with the bottom wall of the cover 20, the roller brush assembly 32 is driven by the drive unit 33 to rotate and rub against the cover 20, thereby removing the dust that has not been cleaned off the roller brush assembly 32 and realizing the self-cleaning action of the roller brush assembly 32; preferably, combined with Figure 6 As shown, the bottom wall of the cover 20 is provided with multiple ribs 200. The ribs 200 can extend into the roller brush assembly 32 or make interference contact with the roller brush assembly 32, which can more effectively realize the rotational friction with the roller brush assembly 32 and improve the dust removal effect. After the roller brush assembly 32 has finished cleaning, the drive part 41 can drive the support part 42 to reset, so that the mounting plate 31 is no longer lifted and is reset, and its vacuuming action and vacuuming function can be restored.

[0028] Specifically, the drive unit 41 is mounted on the base 10. The drive unit 41 includes a second motor 411 and a second transmission member 412. The second motor 411 is mounted on the base 10, and the second transmission member 412 is mounted on the output end of the second motor 411. The support unit 42 includes a first cam 422 and a baffle 421. The baffle 421 is mounted on the mounting plate 31. The first cam 422 is mounted on the second transmission member 412 and, after being driven to rotate, abuts against the baffle 421 and lifts the baffle 421. Furthermore, the second transmission member 412 includes a second driving wheel 4121, a second driven wheel 4122, and a second belt 4123. The second driving wheel 4121 is mounted on the output end of the second motor 411, the second driven wheel 4122 is mounted on the second rotating shaft 102 on the base 10, the second belt 4123 is sleeved on the second driving wheel 4121 and the second driven wheel 4122, and the first cam 422 is mounted on the second driven wheel 4122. When the output shaft of the second motor 411 rotates a certain angle, it drives the second driven wheel 4122 to rotate around the second rotating shaft 102 via the second driving wheel 4121 and the second belt 4123. The first cam 422, which is fixed on the side wall of the second driven wheel 4122, rotates synchronously. When the first cam 422 rotates and abuts against the baffle 421, it can lift the baffle 421 upward. The mounting plate 31, which is fixedly connected to the baffle 421, is then lifted, thereby lifting the roller brush assembly 32. The second motor 411 remains unchanged, so that the roller brush assembly 32 remains in contact with the cover 20. After the roller brush assembly 32 completes the self-cleaning action, the output shaft of the second motor 411 continues to rotate a certain angle. Through the coordinated action of the second driving wheel 4121, the second belt 4123, and the second driven wheel 4122, the first cam 422 rotates a certain angle and no longer abuts against the baffle 421. This allows the baffle 421 and the mounting plate 31 to reset, thereby resetting the roller brush assembly 32.

[0029] Preferably, at least one side (bottom surface) of the baffle 421 near the first cam 422 has an arc-shaped inclined structure, which can ensure that the baffle 421 and the mounting plate 31 are gently lifted or reset when they abut against the first cam 422.

[0030] The roller brush assembly 32 performs the cleaning action on the work surface (such as the ground) without being supported and lifted. Specifically, the drive assembly 33 includes a first motor 331 and a first transmission component 332. The first motor 331 is mounted on the mounting plate 31, and the first transmission component 332 is located at the output end of the first motor 331 and connected to the roller brush assembly 32. Furthermore, the first transmission component 332 includes a first drive wheel 3321, a first driven wheel 3322, and a first belt 3323. The first drive wheel 3321 is located at the output end of the first motor 331, the first driven wheel 3322 is mounted on the roller brush assembly 32, and the first belt 3323 is sleeved on the first drive wheel 3321 and the first driven wheel 3322. The output shaft of the first motor 331 drives the first drive wheel 3321 to rotate, and the first belt 3323 and the first driven wheel 3322 drive the roller brush assembly 32 to rotate to complete the cleaning of the work surface or the self-cleaning after contact with the cover 20.

[0031] like Figure 4 and Figure 5As shown, in another embodiment of the present invention, based on the structure of the drive component 33 described above, the drive part 41 in this embodiment is disposed on the roller brush component 32 of the roller brush mechanism 30, and the support part 42 is connected to the drive part 41 in a transmission manner. The support part 42 drives the roller brush mechanism 30 to lift the side of the mounting plate 31 away from its hinge position so that the roller brush component 32 abuts against the cover 10. Its working principle is the same as that of the above embodiment, which is to lift the mounting plate 31 so that the roller brush component 32 located on the mounting plate 31 is lifted and abuts against the cover 20. Specifically: the first motor 331 is a forward and reverse reversible motor, the drive unit 41 is disposed on the drive assembly 33, the drive unit 41 includes a ratchet 411', which is disposed on the first driving wheel 3321 or the first driven wheel 3322 on the drive assembly 33, the support unit 42 includes a second cam 421' that cooperates with the ratchet 411', that is, the ratchet 411' has a first ratchet belt 4111' on the side near the second cam 421', and the second cam 421' has a second ratchet belt 4211' on the side near the ratchet 411'. The second cam 421' is rotatably disposed on the auxiliary support plate 103 of the base 10 through its third rotating shaft 4212'. The third rotating shaft 4212' is provided with an elastic element 4213', which can be selected as a spring, and its two ends abut against the second cam 421' and the auxiliary support plate 103 respectively.During operation, when the roller brush assembly 32 needs to clean the working surface, the first motor 331 rotates forward, driving the roller brush assembly 32 to rotate via the first transmission component 332 to achieve the cleaning action. At this time, the ratchet 411' is also driven to rotate, but because it can rely on the squeezing of the second cam 421' during rotation (the inclined surfaces between the ratchet teeth on the first ratchet belt 4111' and the second ratchet belt 4211' can achieve axial misalignment after mutual squeezing), the second cam 421' overcomes the elastic element 42. The elastic support of 13′ allows the second cam 421′ to be pushed towards the side closer to the auxiliary support plate 103. The first ratchet belt 4111′ and the second ratchet belt 4211′ do not interfere with each other, meaning that when the ratchet 411′ rotates, the second cam 421′ does not rotate accordingly, allowing the roller brush assembly 32 to work normally while the second cam 421′ remains in its original state. When the self-cleaning action of the roller brush assembly 32 is required, the output shaft of the first motor 331 reverses by a certain angle, and the ratchet 411′ reverses. Due to the elastic support of the first ratchet belt 13′, the second cam 421′ rotates. The interaction between the ratchet on the first ratchet belt 4111′ and the second ratchet belt 4211′ is such that axial misalignment cannot be achieved through compression. Therefore, the second ratchet belt 4211′ maintains an interaction relationship with the first ratchet belt 4111′. The second cam 421′ rotates a certain angle with the ratchet wheel 411′ and then abuts against the base 10. The change in its height position causes the ratchet wheel 411′ to rise, which in turn causes the first transmission component 332 and the mounting plate 31 to rise, thus enabling... Once the roller brush assembly 32 comes into contact with the housing 20, the first motor 331 stops rotating in reverse and continues to rotate in the forward direction, driving the roller brush assembly 32 to rotate and rub against the rotating housing to achieve self-cleaning. During this process, the second cam 421' remains unchanged. After the self-cleaning action is completed, the first motor 331 stops rotating in the forward direction and continues to rotate in the reverse direction. The first transmission component 332 can drive the ratchet 411' to drive the second cam 421' to reset, lowering the ratchet 411' and the mounting plate 31, thereby resetting the position of the roller brush assembly 32.

[0032] Preferably, the ratchet 411' is disposed on the first driven wheel 3322, which makes it easier to support the mounting plate 31 and thus lift the roller brush assembly 32.

[0033] In the above embodiments, the cover 20 can be made of transparent material, forming a window to facilitate observation of the state of the base 10 and the roller brush assembly 32. The transparent cover 20 can also be cleaned by the roller brush assembly 32 when it comes into contact with the cover 20 for self-cleaning.

[0034] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A self-cleaning structure for a vacuum cleaner, characterized in that, include: The base has a cover fixed on it. A roller brush mechanism includes a mounting plate, a roller brush assembly, and a drive assembly. One end of the mounting plate is hinged to the base. The roller brush assembly is rotatably disposed between a pair of mounting plates. The drive assembly is disposed on the mounting plate and is drively connected to the roller brush assembly. The lifting mechanism includes a drive unit and a support unit. The drive unit is disposed on one of the base or the roller brush mechanism. The support unit is pulsatorically connected to the drive unit. The support unit drives the other of the base or the roller brush mechanism to lift the side of the mounting plate away from its hinge position so that the roller brush assembly abuts against the cover.

2. The self-cleaning structure for a vacuum cleaner according to claim 1, characterized in that, The drive assembly includes a first motor and a first transmission component. The first motor is mounted on the mounting plate, and the first transmission component is located at the output end of the first motor and connected to the roller brush assembly.

3. The self-cleaning structure for a vacuum cleaner according to claim 2, characterized in that, The first transmission component includes a first driving wheel, a first driven wheel, and a first belt. The first driving wheel is disposed at the output end of the first motor, the first driven wheel is disposed on the roller brush assembly, and the first belt is sleeved on the first driving wheel and the first driven wheel.

4. The self-cleaning structure for a vacuum cleaner according to any one of claims 1 to 3, characterized in that, The driving unit is disposed on the base, and the driving unit includes a second motor and a second transmission component. The second motor is disposed on the base, and the second transmission component is disposed at the output end of the second motor. The support unit includes a first cam and a baffle. The baffle is disposed on the mounting plate. The first cam is disposed on the second transmission component and, after being driven to rotate, abuts against the baffle and lifts the baffle.

5. The self-cleaning structure for a vacuum cleaner according to claim 4, characterized in that, The second transmission component includes a second driving wheel, a second driven wheel, and a second belt. The second driving wheel is located at the output end of the second motor, the second driven wheel is located on the base, and the second belt is sleeved on the second driving wheel and the second driven wheel.

6. The self-cleaning structure for a vacuum cleaner according to claim 3, characterized in that, The first motor is a reversible motor. The drive unit is disposed on the drive assembly. The drive unit includes a ratchet, which is disposed on the first driving wheel or the first driven wheel. The support unit includes a second cam that cooperates with the ratchet. The second cam is rotatably disposed on the base via a rotating shaft. An elastic element is provided on the rotating shaft. The two ends of the elastic element abut against the second cam and the base, respectively.

7. The self-cleaning structure for a vacuum cleaner according to claim 6, characterized in that, The ratchet is mounted on the first driven wheel.

8. The self-cleaning structure for a vacuum cleaner according to claim 6, characterized in that, The elastic element is a spring.

9. The self-cleaning structure for a vacuum cleaner according to claim 1, characterized in that, The cover is provided with multiple ribs.

10. The self-cleaning structure for a vacuum cleaner according to claim 1 or 9, characterized in that, The cover is made of transparent material.

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