A mop bucket

Abstract

This invention belongs to the field of mop bucket technology, and particularly relates to a mop bucket. A mop bucket includes: an outer bucket; an inner bucket fitted inside the outer bucket, with a locking structure between the inner and outer buckets for adjusting the height of the inner bucket; a water spray assembly disposed within the inner bucket; the inner bucket has an upward-opening water chamber for containing water, and the water spray assembly is disposed within this water chamber; wherein the water spray assembly includes: a support base disposed at the bottom of the water chamber of the inner bucket, the bottom surface of the support base abutting against the bottom plate of the inner bucket to withstand vertical loads applied during operation; and a top head for engaging with the mop head; the top head is mounted on the support base via a rotating support structure, so that the pressure applied by the mop during use is transmitted to the support base via the top head. This invention has the advantage of allowing the inner bucket height to be adjusted while avoiding a concave bottom of the inner bucket.

Claims

1. A mop bucket, characterized in that it comprises: Outer drum; An inner tub is fitted inside the outer tub, and a locking structure is provided between the inner tub and the outer tub to adjust the height of the inner tub; a water spray assembly is disposed inside the inner tub; the inner tub has an upward-opening clean water chamber for containing clean water, and the water spray assembly is disposed in the clean water chamber; wherein, the water spray assembly includes: a support base disposed at the bottom of the clean water chamber of the inner tub, the bottom surface of the support base abutting against the bottom plate of the inner tub, for bearing the vertical load applied during operation; a top head for inserting and engaging with the mop head; the top head is mounted on the support base through a rotating support structure, so that the pressure applied by the mop during use is transmitted to the support base via the top head.

2. The mop bucket as described in claim 1, wherein, The water spray assembly has a plug-in fitting structure and / or screw fixing structure between its support base and the inner tub to achieve detachable and fixed connection between the water spray assembly and the inner tub. The plug-in fitting structure includes: two locking grooves, spaced apart circumferentially on the circumferential inner wall of the inner tub, which are arranged opposite each other in the radial direction; each locking groove has a lateral opening extending in the circumferential direction; and two locking parts, respectively disposed at both ends of the support base, whose shape and position correspond to the locking grooves. The support base rotates around its axis by a preset angle to allow the locking parts to slide into and lock into the corresponding locking grooves, thereby achieving a fixed connection between the support base and the inner tub.

3. The mop bucket as described in claim 2, wherein, The support base rotates in the same direction as the mop head during cleaning by rotating around its axis. The support base includes: a water inlet chamber located at the bottom of the support base and opening downwards, the water inlet chamber communicating with a clean water chamber; a vortex component located within the water inlet chamber, the lower end of the top head extending downwards into the water inlet chamber and fixed to the vortex component; a brush plate located at the top of the support base, the brush plate having several water spray holes, the support base connecting the water inlet chamber and the brush plate via a water outlet channel to allow water to flow from the spray holes; an air inlet pipe located on the support base, the air inlet pipe communicating with the outside world and the water inlet chamber, the height of the air inlet pipe being configured to always be higher than the preset maximum water level of the clean water chamber to prevent backflow of liquid through the air inlet pipe; and a flow hole located at the bottom of the support base, allowing water flow within the clean water chamber to circulate. The bottom of the inner tub is provided with an upward-opening mounting groove, the vortex component is accommodated in the mounting groove, the bottom of the support base covers the mounting groove, and the bottom of the support base or the bottom of the inner tub is provided with several water passage holes or water passages communicating with the mounting groove; the air inlet pipe is located at the support base near the axis of the vortex component, and the water outlet channel is located at the support base away from the axis of the vortex component.

4. The mop bucket as described in claim 3, wherein, The upper end of the support base is provided with a cover, which is fixed to the support base and covers the entire water chamber of the inner tub. The cover is provided with a cover plate that can be opened and closed to allow water to be added to the inner tub. The brush plate is fixed to the upper surface of the cover. The cover and the brush plate are respectively provided with a relief groove and a relief hole to avoid the protruding top head. There is a gap between the top head and the relief hole, so that the water chamber is connected to the outside. The air inlet pipe is located inside the cover and the air inlet of the air inlet pipe is close to the relief groove.

5. The mop bucket as described in any one of claims 1 to 4, wherein, The rotating support structure includes a bushing mounted on a support base. The top head includes a top head body and a rotating shaft fixedly connected to the top head body. The rotating shaft has a shoulder. The rotating shaft is rotatably connected to the bushing, and the bushing has an abutment surface that axially abuts against the shoulder to support the rotating shaft.

6. The mop bucket as claimed in any one of claims 1 to 4, wherein, The outer tub has several circumferentially spaced abutment grooves on its open end wall, including an upward-opening deep groove and a shallow groove, which are spaced apart. The inner tub is vertically fitted onto the open end of the outer tub, and its side wall has a first abutment protrusion for insertion into the abutment groove. The axial length of the first abutment protrusion is greater than the depth of the shallow groove and less than or equal to the depth of the deep groove. The inner tub can be axially pulled away from the outer tub, and after circumferential rotation, the first abutment protrusion can be selectively inserted into either the deep or shallow groove. When the first abutment protrusion is inserted into the deep groove, the mop bucket is in a low position. When the first abutment protrusion is inserted into the shallow groove, the mop bucket is in a high position. The lower end of the inner tub also has a second abutment protrusion, the axial length of which is less than or equal to the depth of the shallow groove. The first and second abutment protrusions are spaced apart along the circumferential direction of the inner tub. In the low position state, when the first abutting protrusion is inserted into the deep groove, the second abutting protrusion is inserted into the shallow groove.

7. The mop bucket as described in claim 6, wherein, The inner tub is located inside the outer tub. The inner wall of the outer tub is provided with an abutment platform, and the lower end wall of the inner tub is provided with a relief groove to avoid the abutment platform. When the inner tub is in a high position, the lower end of the side wall of the inner tub is supported on the abutment platform. When the inner tub is in a low position, the relief groove of the inner tub is adapted to and accommodates the abutment platform.

8. The mop bucket as described in claim 6, wherein, At least one limiting component is provided between the first abutment protrusion and the shallow groove to restrict the inner tub from axially pulling away from the outer tub; the limiting component includes a clip provided on the outer wall of the first abutment protrusion; the clip is rotatably connected to the first abutment protrusion via a pivot and is equipped with an elastic element to provide clamping force; the outer tub is provided with a raised rib at the outer edge of the shallow groove; when the first abutment protrusion is inserted into the shallow groove and the mop tub is in a high position, the clip is engaged with the raised rib under the action of the elastic element; the outer tub is also provided with the raised rib at the outer edge of the deep groove; when the first abutment protrusion is inserted into the deep groove and the mop tub is in a low position, the clip is engaged with the raised rib of the deep groove under the action of the elastic element.

9. The mop bucket as described in claim 6, wherein, The outer barrel has a square circumferential cross-sectional shape; the deep groove and the shallow groove are respectively provided on two adjacent side walls of the outer barrel; after the inner barrel is axially pulled away from the outer barrel, it can switch between a high position and a low position by rotating 90° relative to the outer barrel and re-inserting into the outer barrel; or, the outer barrel has a circular circumferential cross-sectional shape, and the deep groove and the shallow groove are evenly spaced on the wall of the outer barrel.

10. The mop bucket as described in claim 6, wherein, The outer tub is provided with a sewage chamber. When the inner tub is in a high position, the bottom of the inner tub is suspended above the bottom of the outer tub, which expands the volume of the sewage chamber. The inner tub is provided with an outlet for sewage to flow out, and the outlet is connected to the sewage chamber.

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