Cleaning floor brush

Abstract

The utility model relates to a cleaning floor brush which comprises the components of a lower housing which is provided with a first mounting groove; the rolling wheel assembly is detachably mounted in the first mounting groove, and the rolling wheel assembly comprises a wheel shaft with a first shaft end and a second shaft end and a wheel body which can be freely and rotatably supported on the wheel shaft; the positioning piece is constructed to be movably mounted on the lower shell between a first position and a second position; in the first position, the positioning piece is in contact with the second shaft end and restrains the second shaft end in the concave part of the first mounting groove; and in the second position, the positioning piece leaves the second shaft end, the second shaft end is released from the concave part of the first mounting groove, and the roller assembly is allowed to move out of the first mounting groove. According to the cleaning floor brush, the roller assembly is more convenient to disassemble and assemble.

Description

Technical Field

[0001] The present invention relates to the field of surface cleaning equipment and more particularly to cleaning brushes such as those used in vacuum cleaners. Background Art

[0002] A vacuum cleaner generally includes a cleaning brush that can move on a surface to be cleaned. With the movement of the cleaning brush, debris on the surface to be cleaned is sucked into the cleaning brush together with air.

[0003] When designing a cleaning brush, in order to enable the operator to push the cleaning brush to move on the surface to be cleaned with less effort, a plurality of roller assemblies are configured at the bottom of the cleaning brush; these roller assemblies can drive the brush to move. However, when designing these roller assemblies that can move on the surface to be cleaned, there will be challenges that the roller assemblies may be contaminated by debris or entangled by hair and fail to work properly, which will force the operator to clean the roller assemblies regularly.

[0004] In the prior art, a solution of disassembling the roller assembly for cleaning is proposed. However, in the prior art, the removal and installation of the roller assembly are relatively complicated, and the operator has to spend a long time to disassemble and reinstall the roller assembly, which is inconvenient to use. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the purpose of the present application is to provide a cleaning floor brush with a roller assembly that is easy to disassemble and assemble.

[0006] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a cleaning brush, suitable for moving on a surface to be cleaned, the cleaning brush comprising: a lower shell, comprising a first mounting groove arranged facing the surface to be cleaned, the first mounting groove comprising a first side wall and a second side wall opposite to each other, a cavity located between the first side wall and the second side wall, a positioning hole arranged on the first side wall and extending through the cavity from left to right, and a recessed portion arranged at the bottom of the second side wall and extending through the cavity from left to right; a roller assembly, detachably mounted in the first mounting groove, the roller assembly comprising a wheel axle having a first shaft end and a second shaft end and a wheel axle supported on the first mounting groove and capable of freely rotating. A wheel body on the wheel axle; when the roller assembly is installed in the first mounting groove, the wheel body is located in the cavity, the first shaft end is inserted into the positioning hole, and the second shaft end is located in the recess; and a positioning member, which is constructed to be slidable left and right between a first position and a second position on the lower shell; in the first position, the positioning member contacts the second shaft end and constrains the second shaft end in the recess; in the second position, the positioning member leaves the second shaft end, the second shaft end is released from the recess, and the roller assembly is allowed to move out of the first mounting groove.

[0007] In the technical solution of the present application, a positioning member that can be switched between a first position and a second position is provided, so that the operator can remove the roller brush assembly by operating the positioning member to slide along the left and right directions. The method is simple and easy to implement, and no special tools are required, and the disassembly and assembly of the roller assembly are convenient.

[0008] In some possible implementations of the present application, the maximum distance that each of the positioning members slides in the left and right directions is set to be greater than the length of the first shaft end of the wheel axle that is allowed to be inserted into the corresponding positioning hole.

[0009] In some possible implementations of the present application, a pair of second mounting grooves may be provided on the lower shell, and each of the positioning members may be installed in the corresponding second mounting groove.

[0010] In some possible implementations of the present application, each of the second mounting grooves is adjacent to the corresponding first mounting groove on the left and right.

[0011] In some possible embodiments of the present application, a pair of the first mounting grooves and a pair of the second mounting grooves are provided on the lower shell body, and the pair of the first mounting grooves and the pair of the second mounting grooves are distributed along the left and right sides; wherein, the second mounting groove located on the left side is distributed on the right side of the first mounting groove located on the left side, and the second mounting groove located on the right side is distributed on the left side of the first mounting groove located on the right side.

[0012] In some possible embodiments of the present application, the second mounting groove and the first mounting groove share the same second side wall, the second mounting groove includes a third side wall opposite to the second side wall, and a spring is arranged between the positioning member and the third side wall.

[0013] In some possible implementations of the present application, the positioning member includes a first protrusion, the third side wall includes a second protrusion, the first protrusion and the second protrusion are arranged opposite to each other on the left and right, and the spring is confined between the first protrusion and the second protrusion.

[0014] In some possible implementations of the present application, the positioning member includes at least one barb suitable for retaining the positioning member in the second mounting groove.

[0015] In some possible implementations of the present application, the positioning member includes an operating portion suitable for an operator to apply force.

[0016] In some possible embodiments of the present application, the cleaning floor brush also includes: a roller brush, which is rotatably arranged, and the roller brush includes a brush body and a bristle layer covering the outer peripheral surface of the brush body, and the bristle layer is formed by a strip of bristle strips spirally wound around the axial direction of the brush body, and there is a gap between the spiral segments of two adjacent bristle strips.

[0017] In some possible implementations of the present application, the length of the bristles of the bristle layer is 5-20 mm, and the width of the gap measured along the axial direction is 1-20 mm. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural diagram of a cleaning floor brush provided in an embodiment of the present application;

[0019] Figure 2 for Figure 1 The structure diagram of the cleaning brush from an upward perspective;

[0020] Figure 3 for Figure 1 Enlarged view at B;

[0021] Figure 4 for Figure 3 A schematic diagram of the positioning member in FIG. 1 when it moves to the second position;

[0022] Figure 5 A structural diagram of a roller brush provided in an embodiment of the present application;

[0023] Figure 6 A disassembled diagram of the lower housing provided in an embodiment of the present application;

[0024] Figure 7 for Figure 6 Enlarged view at C;

[0025] Figure 8 A transverse cross-sectional view of a lower shell provided in an embodiment of the present application;

[0026] Fig. 9 for Figure 8 Enlarged view at D;

[0027] Fig.10 A structural diagram of a roller assembly provided in an embodiment of the present application;

[0028] Fig.11 A structural diagram of a positioning member provided in an embodiment of the present application;

[0029] Fig.12 for Fig.11 A structural diagram of a positioning member at another viewing angle;

[0030] Fig.13 for Figure 2 Cross-sectional view along direction A-A;

[0031] Fig.14 for Fig.13 Enlarged view at E. DETAILED DESCRIPTION

[0032] See also Figure 1-2 , which shows a cleaning floor brush 100. The cleaning floor brush is usually attached to a vacuum main unit with a suction source and a debris storage container for use. The cleaning floor brush 100 can move on the surface to be cleaned, and during the movement, pick up the debris on the surface to be cleaned and send it into the debris storage container of the vacuum main unit. The "up" and "down" directions mentioned below are used relative to the orientation of the cleaning floor brush on the surface to be cleaned, and the "front" and "rear" directions are used relative to the direction in which the operator pushes the cleaning floor brush on the surface to be cleaned (i.e., from back to front).

[0033] The cleaning floor brush 100 includes a floor brush body 1 and an adapter 2 hinged at the rear of the floor brush body 1. The floor brush body 1 is square and has a shell assembly defining most of the outer contour of the floor brush and a roller brush 3. The shell assembly includes an upper shell 11, a lower shell 12, a left shell 13 and a right shell 14. The roller brush 3 is rotatably mounted on the front of the shell assembly. A suction channel 4 is also provided inside the shell assembly.

[0034] The cleaning brush 100 is provided with a pair of roller assemblies 51 and 52 and a pair of positioning members 61 and 62 distributed left and right at the middle position of the lower housing 12. The pair of roller assemblies 51 and 52 can help the cleaning brush move along the surface to be cleaned. The pair of positioning members 61 and 62 can constrain the pair of roller assemblies 51 and 52 at the lower housing 12.

[0035] In some embodiments of the present application, a pair of positioning members 61 and 62 can be constructed to be movably mounted on the lower shell 12 between a first position and a second position; in the first position, each positioning member constrains the corresponding roller assembly to the lower shell 12; in the second position, each positioning member releases the corresponding roller assembly from the lower shell 12.

[0036] See also Figure 3-4 , which shows the structure of the roller assembly 52 and the positioning member 62 located on the right. Figure 3 , the positioning member 62 shown in this figure is in the first position, and the roller assembly 52 is limited at the lower housing 12. The positioning member 62 shown in this figure is in the second position, the positioning member 62 slides toward the side away from the roller assembly 51, and the roller assembly 52 can be removed from the lower housing 12.

[0037] like Figure 5 As shown, the roller brush 3 includes a brush body 31 and a bristle layer 32 covering the outer peripheral surface of the brush body 31. In some embodiments of the present application, the bristle layer 32 is formed by a strip of bristles spirally wound around the axis X direction of the brush body 31, and there is a gap 33 between the spiral segments of two adjacent bristle strips. In some specific embodiments, the width L of the gap 33 measured along the axial direction is 1-20mm. The existence of this gap 33 prevents the bristle layer from blocking the external air from entering the suction channel, thereby preventing the cleaning brush from being obstructed due to excessive suction. The bristle length of the bristle layer can be selected to be 5-20mm. The bristles can be soft and fluffy.

[0038] like Figure 6As shown, the lower housing 12 is provided with a pair of first mounting grooves 71 and 72 and a pair of second mounting grooves 81 and 82 distributed along the left and right directions. The roller assembly 51 is detachably mounted in the first mounting groove 71, and the positioning member 61 can be slidably mounted in the second mounting groove 81 along the left and right directions. When the positioning member 61 slides along the left and right directions, the positioning member 61 is transformed between the first position and the second position, and the positioning member 61 is always constrained in the second mounting groove 81. The roller assembly 52 is detachably mounted in the first mounting groove 72, and the positioning member 62 is slidably mounted in the second mounting groove 82 along the left and right directions. When the positioning member 62 slides along the left and right directions, the positioning member 62 is transformed between the first position and the second position, and the positioning member 62 is always constrained in the second mounting groove 82. The first mounting groove 71 located on the right side and the second mounting groove 81 located on the right side are adjacent to each other on the left and right sides, and the second mounting groove 81 is located on the left side of the first mounting groove 71. The first mounting groove 72 on the left side and the second mounting groove 82 on the left side are adjacent to each other on the left and right, and the second mounting groove 82 is located on the right side of the first mounting groove 72 .

[0039] See also Figure 7 , which shows the structure of the first installation groove 71 and the second installation groove 81 located on the right side. The first installation groove 71 includes a first side wall 711 and a second side wall 712 opposite to each other on the left and right sides and a cavity 710 located between the first side wall 711 and the second side wall 712. The bottom of the second side wall 712 is provided with a recessed portion 714 that penetrates the cavity 710 on the left and right sides.

[0040] See also Figure 8-9 , which shows the internal structure of the first mounting groove 71 and the second mounting groove 81. The first side wall 711 is provided with a positioning hole 713 that passes through the cavity 710. The second mounting groove 81 and the first mounting groove 71 share a second side wall 712. The second mounting groove 81 includes a third side wall 811 that is opposite to the second side wall 712. The third side wall 811 is provided with a protrusion 812.

[0041] See also Fig.10 As shown, the roller assembly 51 includes a wheel axle 510 having a first shaft end 511 and a second shaft end 512 and a wheel body 513 supported on the wheel axle 510 so as to be freely rotatable.

[0042] See also Figure 11-12 As shown, the positioning member 61 is an integrated component, which has a top wall 611, a pair of barbs 612, a crimping wall 613 and a protrusion 614. The top wall 611 is provided with an operating portion (not shown in the figure) for the operator to apply force.

[0043] In the present application, the roller assemblies 51 and 52 are detachably mounted in the first mounting grooves 71 and 72, respectively. The positioning members 61 and 62 are configured to be movably mounted in the second mounting grooves 81 and 82, respectively, between a first position and a second position.

[0044] See also Figure 13-14 , which shows the structural state that the roller assembly 51 and the positioning member 61 are respectively installed in the first installation groove 71 and the second installation groove 81. The wheel body 513 of the roller assembly 51 is located in the cavity 710 of the first installation groove 71, the first shaft end 511 of the wheel shaft 510 is placed in the positioning hole 713, and the second shaft end 512 of the wheel shaft 510 is located in the recess 714. When the positioning member 61 is in the first position, the crimping wall 613 of the positioning member 61 will contact the second shaft end 512 of the wheel shaft 510 from the bottom and left direction to constrain the second shaft end 512 of the wheel shaft 510 in the recess 714; in this state, under the joint action of the positioning hole 713 and the crimping wall 613, the second end 512 of the wheel shaft 510 will not be allowed to move arbitrarily up and down or left and right, and the roller assembly 51 will be confined in the first installation groove 71.

[0045] Continue to see Fig.12 A spring 9 is provided between the positioning member 61 and the third side wall 811. The spring 9 is defined between the protrusion 614 and the protrusion 812. The spring 9 can provide a certain force to the positioning member 61, so that the positioning member 61 always maintains contact with the second shaft end 512 of the axle 510 in the first position.

[0046] When the operator needs to remove the roller assembly 51, the operator applies a sliding force toward the left to the positioning member 61 through the operating part of the top wall 611, and the positioning member 61 will move toward the left direction of the second axial end 512 away from the wheel axle 510, and the crimping wall 613 leaves the second axial end 512 of the wheel axle 510; the first axial end 511 of the wheel axle 510 will be able to slide out of the positioning hole 713 to the left, and the roller assembly 51 can be moved out of the first mounting groove 71; that is, when the positioning member 61 moves to the left direction to the second position, the roller assembly 51 can be moved out of the first mounting groove 71 by first moving to the left and then moving downward.

[0047] In order to facilitate the roller assembly 51 to be removed from the first mounting groove 71 when the positioning member 61 moves to the second position, the maximum sliding distance of the positioning member 61 in the left and right directions is set to be greater than the length of the first shaft end 511 of the wheel axle 510 allowed to be inserted into the positioning hole 713.

[0048] The structures of the roller assembly 52, the positioning member 62, the first mounting groove 82, and the second mounting groove 82 are similar to the structures of the roller assembly 51, the positioning member 61, the first mounting groove 81, and the second mounting groove 81 described above, and will not be described again. In some specific embodiments, the roller assembly 52, the positioning member 62, the first mounting groove 82, and the second mounting groove 82 may be arranged symmetrically with the corresponding roller assembly 51, the positioning member 61, the first mounting groove 81, and the second mounting groove 81. When the operator needs to remove the roller assembly 52, by applying a sliding force toward the right side to the positioning member 62, the positioning member 62 will move to the second position (such as the right side) away from the roller assembly 52. Figure 4 , the positioning member 62 leaves the second axial end of the axle of the roller assembly 52; the first axial end of the axle of the roller assembly 52 can slide out to the right from the positioning hole, and the roller assembly 52 can be moved out of the first mounting groove 72; that is, when the positioning member 62 moves to the right side to the second position, the roller assembly 52 can be moved out of the first mounting groove 72 by first moving to the right and then moving downward.

[0049] The roller assembly of the present invention does not need to be removed together with the positioning member when being removed, and its disassembly and assembly is more convenient. The operator can clean the dirt adhering to the roller assembly by removing the roller assembly.

[0050] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present application. Without departing from the spirit and scope of the present application, the present application may have various changes and improvements, and the scope of protection required by the present application is defined by the attached claims, description and their equivalents.

Claims

1. A cleaning brush, suitable for moving on a surface to be cleaned, characterized in that: The cleaning floor brush comprises: The lower housing comprises a first mounting groove arranged facing the surface to be cleaned, the first mounting groove comprising a first side wall and a second side wall opposite to each other, a cavity between the first side wall and the second side wall, a positioning hole arranged on the first side wall and extending through the cavity, and a recessed portion arranged at the bottom of the second side wall and extending through the cavity; A roller assembly is detachably mounted in the first mounting groove, the roller assembly comprising a wheel shaft having a first shaft end and a second shaft end and a wheel body rotatably supported on the wheel shaft; when the roller assembly is mounted in the first mounting groove, the wheel body is located in the cavity, the first shaft end is inserted into the positioning hole, and the second shaft end is located in the recess; and The positioning member is constructed to be slidable left and right on the lower shell between a first position and a second position; in the first position, the positioning member contacts the second shaft end and constrains the second shaft end in the recess; in the second position, the positioning member leaves the second shaft end, the second shaft end is released from the recess, and the roller assembly is allowed to move out of the first mounting groove.

2. The cleaning brush according to claim 1, characterized in that: The maximum sliding distance of the positioning member in the left and right directions is set to be greater than the length of the first shaft end of the wheel axle allowed to be inserted into the positioning hole.

3. The cleaning brush according to claim 1, characterized in that: The lower shell is also provided with a second installation groove, and the positioning member is installed in the second installation groove.

4. The cleaning brush according to claim 3, characterized in that: The second installation slot is adjacent to the first installation slot on the left and right.

5. The cleaning brush according to claim 4, characterized in that: A pair of the first mounting grooves and a pair of the second mounting grooves are provided on the lower shell body, and the pair of the first mounting grooves and the pair of the second mounting grooves are distributed along the left and right sides; wherein, the second mounting groove located on the left side is distributed on the right side of the first mounting groove located on the left side, and the second mounting groove located on the right side is distributed on the left side of the first mounting groove located on the right side.

6. The cleaning brush according to claim 4, characterized in that: The second mounting groove and the first mounting groove share the same second side wall, the second mounting groove includes a third side wall opposite to the second side wall, and a spring is arranged between the positioning member and the third side wall.

7. The cleaning brush according to claim 6, characterized in that: The positioning member includes a first protrusion, the third side wall includes a second protrusion, the first protrusion and the second protrusion are arranged opposite to each other on the left and right, and the spring is defined between the first protrusion and the second protrusion.

8. The cleaning brush according to claim 3, characterized in that: The positioning member includes at least one barb adapted to retain the positioning member within the second mounting slot.

9. The cleaning brush according to claim 1, characterized in that: The positioning member comprises an operating portion suitable for an operator to apply a force.

10. The cleaning brush according to claim 1, characterized in that: Also includes: The roller brush is rotatably arranged and includes a brush body and a bristle layer covering the outer peripheral surface of the brush body. The bristle layer is formed by a strip of bristle strips spirally wound around the axial direction of the brush body, and there is a gap between the spiral segments of two adjacent bristle strips.

11. The cleaning brush according to claim 10, characterized in that: The bristles of the bristle layer are 5-20 mm long, and the width of the gap measured along the axial direction is 1-20 mm.

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