Cleaning attachment having a wiper assembly and wiper assembly

Abstract

A cleaning attachment having a wiper assembly and a wiper assembly are provided. [Solution] The cleaning attachment includes a movable attachment holder having an air intake and a dust chamber, and a wiper assembly attached to the bottom of the attachment holder and located on the dust chamber side. The wiper assembly includes a wiper base, a plurality of first wiper blades located on one side of the wiper base and spaced apart along the length of the wiper base, and a plurality of second wiper blades located on the other side of the wiper base and spaced apart along the length of the wiper base, at least some of the second wiper blades being movable between two positions: in the first position, the second wiper blades are close to the first wiper blades, and in the second position, the second wiper blades are spaced apart from the first wiper blades. The advantages of this invention are that it can clean floors with just one movement, ensures the removal of large particles of dirt, and ensures sufficient suction power, saving cleaning time and improving efficiency.

Description

[Technical Field]

[0001] The present invention relates to the field of household cleaning, and more particularly to a cleaning attachment having a wiper assembly and a wiper assembly. [Background technology]

[0002] Cleaning attachments are used in conjunction with vacuum cleaners and typically include standard floor brushes, powered floor brushes, and air-powered floor brushes. Conventional cleaning attachments use brush strips to maintain an effective seal, ensuring no air leakage to the rear and sufficient suction power when the user cleans while moving forward. However, due to the seal created by the brush strip, when the floor brush moves backward, it catches dust / particles behind it, preventing cleaning and requiring the user to go back and forth two or more times to clean the dust on the floor. A similar technology can be found in Chinese Utility Model Patent CN205729239U, and therefore needs to be improved. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] China Utility Model Registration No. CN205729239 Summary of the Invention [Problem to be solved by the invention]

[0004] The purpose of the present invention is to provide a cleaning attachment with a wiper assembly and a wiper assembly that can effectively solve the above technical problems, allowing the floor surface to be cleaned with just one movement, ensuring the removal of large particles of dirt, and also ensuring sufficient suction power. [Means for solving the problem]

[0005] To achieve the object of the present invention, the present invention provides the following first technical means: A cleaning attachment having a wiper assembly includes an attachment holder having an air intake and a dust chamber and movable on a plane, and a wiper assembly provided at the bottom of the attachment holder and located on the dust chamber side, the wiper assembly including a wiper base, a plurality of first wiper blades located on one side of the wiper base and spaced apart along the length of the wiper base, and a plurality of second wiper blades located on the other side of the wiper base and spaced apart along the length of the wiper base, at least some of the second wiper blades change between two positions, where in the first position the second wiper blade is close to the first wiper blade and in the second position the second wiper blade is separated from the first wiper blade.

[0006] Based on the above technical means, the following dependent technical means are further included:

[0007] The second wiper blades and the first wiper blades are arranged alternately at intervals, and the first wiper blade, the second wiper blade and the wiper base are integrally injection-molded soft rubber material, or the first wiper blade and the second wiper blade are both separate parts.

[0008] An end of the second wiper blade is closer to the plane than an end of the first wiper blade and is deformed by contacting the plane, and when the attachment holder moves along a first direction, the second wiper blade moves toward a first position until it reaches the first position, and when the attachment holder moves along a second direction, the second wiper blade moves toward a second position until it reaches the second position, the first direction and the second direction being opposite to each other.

[0009] The attachment holder further includes a guide pipe, one end of which communicates with the dust collection chamber, and a rotary connecting pipe, the other end of which is connected to the guide pipe and is rotatable about its axis, the dust collection chamber and the air intake port are both located on the attachment holder base, the air intake port is located in front of the dust collection chamber, the assembly accommodating groove is located behind the dust collection chamber and accommodates a wiper assembly, and the attachment holder reciprocates in the front-to-back direction on the plane.

[0010] A support rib is provided between the first wiper blade and the corresponding second wiper blade, and the support rib is integrally connected to the first wiper blade.

[0011] A first wiper blade gap is provided between two adjacent first wiper blades, and a corresponding second wiper blade is provided opposite the first wiper blade gap.

[0012] The second wiper blade includes a second wiper blade root having one end connected to the wiper base and a second wiper blade end connected to the other end of the second wiper blade root and being deformable, and in a first position, the second wiper blade root conforms to the outer shape of the support rib, and the support rib is arc-shaped.

[0013] Each of the two adjacent first wiper blades has a support rib located on both sides of the first wiper blade gap, and the second wiper blade corresponding to the two adjacent first wiper blades is located between the two support ribs.

[0014] The wiper assembly further includes a wiper support for fixing the wiper assembly, the wiper support including a support cavity for accommodating the wiper base, a support opening communicating with the support cavity and allowing the first and second wiper blades to pass through, and support locking arms located on both sides of the support opening, the cross-sectional area of ​​the support rib being arc-shaped, one support locking arm being located adjacent to the first wiper blade and the other support locking arm being located adjacent to the second wiper blade.

[0015] The present invention provides the following second technical solution: A wiper assembly applied to a cleaning attachment includes a wiper base, a plurality of first wiper blades located on one side of the wiper base and spaced apart along the length of the wiper base, and a plurality of second wiper blades located on the other side of the wiper base and spaced apart along the length of the wiper base, at least some of the second wiper blades change between two positions, where in the first position the second wiper blade is close to the first wiper blade and in the second position the second wiper blade is spaced apart from the first wiper blade. [Effects of the Invention]

[0016] The beneficial effects of this invention are that it can clean the floor surface with just one movement, it can ensure the removal of large particles of dirt, and it can also ensure sufficient suction power, which can save cleaning time and improve efficiency. [Brief explanation of the drawings]

[0017] The drawings are intended to provide a further understanding of the invention, constitute a part of the specification, and together with examples of the invention explain the invention without, however, limiting the invention.

[0018] [Figure 1] FIG. 1 is a perspective view of the present invention. [Figure 2] FIG. [Figure 3]FIG. [Figure 4] 1 is a perspective view of a wiper assembly according to the present invention in a first state; FIG. [Figure 5] 3 is a perspective view of the wiper assembly of the present invention in a first state, viewed from another angle; FIG. [Figure 6] 10 is a perspective view of the wiper assembly of the present invention in a second state, seen from another angle; FIG. [Figure 7] 1 is a cross-sectional view of a wiper assembly according to the present invention in a first state; [Figure 8] 1 is a perspective view of a wiper assembly in accordance with the present invention in a first state; FIG. [Figure 9] 4 is a cross-sectional view of the wiper assembly of the present invention in a second state; FIG. [Figure 10] FIG. 2 is a perspective view of the wiper assembly of the present invention in a second state; DETAILED DESCRIPTION OF THE INVENTION

[0019] In order to make the objectives, technical means and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical means in the embodiments of the present invention. Of course, the described embodiments are only some of the embodiments of the present invention, and not all of the embodiments.

[0020] In describing the present invention, the orientations or positional relationships indicated by the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. are based on the orientations or positional relationships shown in the drawings and are intended merely to facilitate and simplify the description of the present invention, and do not indicate or suggest that the depicted devices or components must have a specific orientation, be configured, and operate in a specific orientation, and should not be understood as limiting the scope of protection of the present invention. When an assembly is described as being "fixed" to another assembly, the assembly may be directly fixed to the other assembly, or an intervening assembly may be present. When an assembly is considered to be "connected" to another assembly, the component may be directly connected to the other assembly, or an intervening assembly may also be present. When an assembly is considered to be "mounted" to another assembly, the assembly may be directly mounted to the other assembly, or an intervening assembly may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only.

[0021] 1 to 10, the present invention discloses a first embodiment of a cleaning attachment with a wiper assembly, which includes an attachment holder having an air intake 140 and a dust collection chamber 120 and movable on a plane, and a wiper assembly 400 provided at the bottom of the attachment holder and positioned on the dust collection chamber 120 side.

[0022] The attachment holder includes an attachment holder base 100 located at the bottom and an attachment holder cover 200 located above the attachment holder base 100. The attachment holder base 100 is provided with a dust collection chamber 120, a plurality of air intake ports 140 located in front of the dust collection chamber 120, and an assembly receiving groove 160 located behind the dust collection chamber 120 and receiving the wiper assembly 400. A dust collection port 124 is provided at the rear of the dust collection chamber 120. The attachment holder can move back and forth on the plane. The assembly receiving groove 160 is provided with a plurality of positioning clips 164 for fixing the wiper assembly 400. An extension portion 180 extending rearward from the attachment holder base 100 is formed.

[0023] The wiper assembly 400 includes a wiper support 420 and a wiper member 440 fixed by the wiper support 420. The wiper member 440 includes a wiper base 444 housed by the wiper support 420, a plurality of first wiper blades 460 located on one side of the wiper base 444 and spaced apart along the length of the wiper base 444, and a plurality of second wiper blades 480 located on the other side of the wiper base 444 and spaced apart along the length of the wiper base 444. The wiper support 420 includes a support cavity 424 that houses the wiper base 444, a support opening 426 that communicates with the support cavity 424 and through which the first and second wiper blades 460, 480 can pass, and support locking arms 428 located on both sides of the support opening. At least a portion of the second wiper blade 480 changes between two positions; in the first position, the second wiper blade 480 is close to the first wiper blade 460, and in the second position, the second wiper blade 480 is away from the first wiper blade 460. The second wiper blades 480 and the first wiper blades 460 are alternately arranged with a gap between them. The end of the second wiper blade 480 is closer to the plane than the end of the first wiper blade 460, and is deformed by contacting the plane. A support rib 463 is provided between the first wiper blade 460 and the corresponding second wiper blade 480, and the support rib 463 is integrally connected to the first wiper blade 460. A first wiper blade gap 466 is provided between two adjacent first wiper blades 460, and a corresponding second wiper blade 480 is provided opposite the first wiper blade gap 466. The second wiper blade 480 includes a second wiper blade root 482 having one end connected to the wiper base 444, and a second wiper blade end 484 connected to the other end of the second wiper blade root 482 and being deformable.Each pair of adjacent first wiper blades 460 has a support rib 463 located on both sides of the first wiper blade gap 466. The corresponding second wiper blade 480 is located between the two support ribs 463. The cross-sectional area of ​​the support rib 463 is arc-shaped. The shape of the second wiper blade root 482 matches the support rib 463 and has the same curvature. This curvature allows the second wiper blade root 482 to open to maximize its airflow cross-section after instantaneous deformation, which is key to clearing large particles of dirt. Without this curvature, it would be difficult for large particles of dirt to pass through even after opening. The first wiper blade 460, the second wiper blade 480, and the wiper base 444 are integrally injection-molded from a soft rubber material. Similarly, the first wiper blade 460 and the second wiper blade 480 may be separate components directly and fixedly connected to the wiper support 420. It should be noted that the wiper support 420 may be omitted to reduce costs, and the object of the present invention can be achieved in the same manner.

[0024] This embodiment further includes a guide pipe 240 having one end communicating with the dust collection port 124 of the dust collection chamber 120, a rotary connection pipe 300 connected to the other end of the guide pipe 240 and rotatable about its axis, a first roller 520 located on the bottom surface of the front side of the dust collection chamber 120, and a second roller 540 located on the floor surface of the extension part 180. The first roller 520 and the second roller 540 support the reciprocating movement of the attachment holder.

[0025] The present invention discloses a second embodiment of a wiper assembly, which includes a wiper base 444, a plurality of first wiper blades 460 located on one side of the wiper base 444 and spaced apart along the length of the wiper base 444, and a plurality of second wiper blades 480 located on the other side of the wiper base 444 and spaced apart along the length of the wiper base 444, at least some of the second wiper blades 480 being variable between two positions, in the first position the second wiper blades 480 are close to the first wiper blades 460, and in the second position the second wiper blades 480 are spaced apart from the first wiper blades 460. For ease of explanation, the first wiper blade 461 located at the leading or trailing end is provided with only one support rib 463, and the first wiper blade 462 adjacent to the first wiper blade 461 located at the leading or trailing end is provided with two support ribs, one of which is adjacent to the support rib 463 of the first wiper blade 461, and this support rib is the adjacent support rib 464. A first wiper blade gap 466 is provided between the support rib 463 of the first wiper blade 461 and the adjacent support rib 464 of the adjacent first wiper blade 462. A second wiper blade gap 486 is provided between the adjacent second wiper blades 480. The first wiper blade gaps 466 and the second wiper blade gaps 486 are arranged alternately.

[0026] As shown in FIGS. 4, 7, and 8, when the attachment holder moves forward for cleaning, first wiper blade 460 is brought into close contact with second wiper blade 480 due to frictional force. Furthermore, because first wiper blade 460 has a height difference H with respect to second wiper blade 480, the excess height of first wiper blade 460 is folded backward to form an offset seal line between first wiper blade 460 and second wiper blade 480. This maintains a certain frictional force with the floor surface and acts as a seal, ensuring that dust passes from dust collection chamber 120 through dust collection port 124, guide pipe 240, and rotary connecting pipe 300 in this order and enters the vacuum cleaner body, where it is separated from air.

[0027] As shown in Figures 6, 9 and 10, when the attachment holder moves backward to clean, first wiper blade 460 has a height difference H with respect to second wiper blade 480, so the excess height of first wiper blade 460 flips forward, momentarily forming an opening between first wiper blade 460 and second wiper blade 480, allowing large particles of dust (such as rice grains or cookie crumbs) to pass through momentarily. This ensures that dust behind the attachment holder can be properly cleaned even when moving backward, and that the dust passes from dust collection chamber 120 through dust collection port 124, guide pipe 240 and rotary connecting pipe 300 in that order, before finally entering the vacuum cleaner body where it is separated from the air.

[0028] The advantage of this invention is that it can clean the floor surface with just one movement, not only can it ensure the removal of large particles of dust, but also can ensure sufficient suction power, and it can save cleaning time and improve efficiency.

[0029] The above are merely preferred embodiments of the present invention, and the scope of protection of the present invention is not limited to these. Any modifications and improvements made by those skilled in the art without departing from the creative idea of ​​the present invention are all within the scope of protection of the present invention.

Claims

1. The wiper assembly (400) includes a wiper base (444), a plurality of first wiper blades (460) located on one side of the wiper base (444) and spaced apart along the length of the wiper base (444), and a wiper base (460) located on the other side of the wiper base (444). and a plurality of second wiper blades (480) spaced along the length of the wiper base (444), at least some of the second wiper blades (480) being variable between two positions, wherein in the first position the second wiper blades (480) are adjacent to the first wiper blades (460) and in the second position the second wiper blades (480) are spaced apart from the first wiper blades (460).

2. 2. The cleaning attachment having a wiper assembly according to claim 1, wherein the second wiper blades (480) and the first wiper blades (460) are arranged alternately and spaced apart, and the first wiper blades (460), the second wiper blades (480) and the wiper base (444) are integrally injection-molded soft rubber material, or the first wiper blades (460) and the second wiper blades (480) are both separate components.

3. 3. The cleaning attachment with wiper assembly of claim 2, wherein an end of the second wiper blade (480) is closer to the plane than an end of the first wiper blade (460) and is deformed by contact with the plane, and when the attachment holder moves along a first direction, the second wiper blade (480) moves toward a first position until it reaches the first position, and when the attachment holder moves along a second direction, the second wiper blade (480) moves toward a second position until it reaches the second position.

4. 4. The cleaning attachment with a wiper assembly according to claim 1, further comprising: a guide pipe (240) having one end communicating with the dust collection chamber (120); and a rotary connecting pipe (300) connected to the other end of the guide pipe (240) and rotatable about an axis, wherein the attachment holder comprises an attachment holder base (100) located at the bottom and having an assembly accommodating groove (160), and an attachment holder cover (200) located above the attachment holder base (100), wherein the dust collection chamber (120) and the air intake (140) are both located in the attachment holder base (100), the air intake (140) is located in front of the dust collection chamber (120), and the assembly accommodating groove (160) is located behind the dust collection chamber (120) and accommodates a wiper assembly (400), and the attachment holder reciprocates along a front-to-rear direction on the plane.

5. 4. The cleaning attachment having a wiper assembly according to claim 3, wherein a support rib (463) is provided between the first wiper blade (460) and the corresponding second wiper blade (480), and the support rib (463) is integrally connected to the first wiper blade (460).

6. 6. A cleaning attachment having a wiper assembly as described in claim 5, wherein a first wiper blade gap (466) is provided between two adjacent first wiper blades (460), and a corresponding second wiper blade (480) is provided opposite the first wiper blade gap (466).

7. 6. A cleaning attachment with a wiper assembly as described in claim 5, wherein the second wiper blade (480) includes a second wiper blade root (482) connected at one end to the wiper base (444) and a deformable second wiper blade end (484) connected to the other end of the second wiper blade root (482), and the second wiper blade root (482) conforms to the outer shape of a support rib (463) in the first position, and the support rib (463) is arc-shaped.

8. 5. A cleaning attachment having a wiper assembly according to claim 4, wherein two adjacent first wiper blades (460) are provided with support ribs (463) located on both sides of the first wiper blade gap (466), and a second wiper blade (480) corresponding to the two adjacent first wiper blades (460) is located between the two support ribs (463).

9. 6. The cleaning attachment having a wiper assembly according to claim 5, further comprising a wiper support (420) for fixing the wiper assembly (400), the wiper support (420) including a support cavity (424) for accommodating the wiper base (444), a support opening (426) communicating with the support cavity (424) and through which the first and second wiper blades (460, 480) can pass, and support locking arms (428) located on both sides of the support opening, the cross-sectional area of ​​the support rib (463) being arc-shaped, one support locking arm (428) being adjacent to the first wiper blade (460), and the other support locking arm (428) being adjacent to the second wiper blade (480).

10. A wiper assembly for use with a cleaning attachment, comprising: a wiper base (444); a plurality of first wiper blades (460) located on one side of the wiper base (444) and spaced apart along the length of the wiper base (444); and a plurality of second wiper blades (480) located on the other side of the wiper base (444) and spaced apart along the length of the wiper base (444), wherein at least some of the second wiper blades (480) are variable between two positions, and in the first position the second wiper blades (480) are adjacent to the first wiper blades (460), and in the second position the second wiper blades (480) are spaced apart from the first wiper blades (460).

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