A roller brush assembly and a floor brush device

Abstract

This invention provides a roller brush assembly and a floor brush device, belonging to the technical field of floor scrubbers. The roller brush assembly is used on a floor brush device, which has a housing and a drive shaft mounted on the housing. The roller brush assembly includes: a roller brush body, the first end of which is connected to the drive shaft to drive the roller brush body to rotate; a fixing frame connected to the second end of the roller brush body; and a handle mounted on the fixing frame, capable of rotating to open or close relative to the fixing frame. The handle has a first locking part and a second locking part. When the handle is rotated downwards to close, the first and second locking parts respectively engage with the housing to simultaneously fix the roller brush body to the housing and lock the handle to the housing. When the handle is rotated upwards to open, the first and second locking parts disengage from the housing to simultaneously release the roller brush body and the handle. This roller brush assembly is easy to install, simplifies the structure of the floor brush device, and provides strong stability when mounted on the floor brush device.

Description

Technical Field

[0001] This invention belongs to the field of floor scrubber technology, and particularly relates to a roller brush assembly and a floor brush device. Background Technology

[0002] The assembly methods for fixing the roller brushes in floor scrubbers on the market are complex and their reliability or stability is not very good. For example, a floor brush disclosed in Chinese Patent Publication No. CN209574555U includes a floor brush housing and a roller brush mounted on the floor brush housing. One end of the roller brush is connected to the floor brush housing, and the other end is connected to a roller brush cover. When installing the roller brush, the free end of the roller brush needs to be connected to a roller on the floor brush housing, and then the end of the roller brush connected to the roller brush cover is inserted downwards into the mounting opening on the floor brush housing. After installation, the roller brush cover needs to be rotated downwards so that the locking block on the floor brush housing inserts into the locking groove of the roller brush cover, thus completing the fixing of the roller brush. However, when removing the roller brush, the locking block on the floor brush housing needs to be pushed and the roller brush cover needs to be ejected upwards through a pop-out mechanism. Therefore, if the roller brush in this floor brush structure is to be installed on the floor brush, a corresponding locking block mechanism and a pop-out mechanism need to be set on the floor brush, which undoubtedly increases the complexity of the floor brush housing structure. Furthermore, the reliability or stability of the roller brush when it is placed on the floor brush is not strong because only the upper locking groove of the roller brush and the locking block on the floor brush housing are engaged. Summary of the Invention

[0003] To address the aforementioned technical problems in the prior art, the present invention provides a roller brush assembly and a floor brush device. This roller brush assembly is easy to install, simplifies the structure of the floor brush device, and provides high stability when mounted on the floor brush device.

[0004] The technical solution adopted in the embodiments of the present invention is as follows:

[0005] A roller brush assembly for use in a floor brush device, the floor brush device having a housing and a drive shaft disposed on the housing, the roller brush assembly comprising:

[0006] A roller brush body, the first end of which is connected to the drive shaft so as to drive the roller brush body to rotate via the drive shaft;

[0007] A mounting bracket is connected to the second end of the roller brush body;

[0008] A handle is provided on the fixed frame and can be rotated upward to open or downward to close relative to the fixed frame. The handle is provided with a first latching part and a second latching part located on different sides thereon.

[0009] When the handle is rotated downwards to close, the first and second locking parts engage with the outer casing, thereby simultaneously fixing the roller brush body to the outer casing and locking the handle to the outer casing; when the handle is rotated upwards to open, the first and second locking parts disengage from the outer casing, thereby simultaneously releasing the roller brush body and the handle.

[0010] Furthermore, the fixing frame includes:

[0011] A baffle, which is set vertically;

[0012] A first mounting base and a second mounting base are both located on the inner side of the baffle facing the brush body, with the first mounting base positioned above the second mounting base. A handle is rotatably mounted on the first mounting base, and the second end of the brush body is rotatably mounted on the second mounting base. This structure facilitates rotating the handle.

[0013] Furthermore, the outer casing of the floor brush device is provided with a first positioning part, and the vertical side or bottom of the baffle is provided with a second positioning part. The second positioning part is used to be inserted into the first positioning part so that the roller brush assembly is positioned on the outer casing of the floor brush device, thereby restricting the roller brush assembly from moving along the axial direction of its roller brush body during operation.

[0014] Furthermore, the first end of the handle is rotatably mounted on the first mounting base via a pivot. The first and second locking portions are located on opposite sides of the pivot, with the end face of the first end of the handle protruding outward to form the first locking portion. The two locking portions located on opposite sides of the pivot facilitate effortless upward rotation of the handle.

[0015] Furthermore, the side of the handle opposite to the baffle protrudes outward to form the second locking portion.

[0016] Furthermore, the bottom of the handle protrudes downward to form the second locking portion.

[0017] Furthermore, the upper surface of the handle is flat, and the first mounting base is provided with a recess; when the handle is closed, the handle is embedded in the recess, and the upper surface of the handle forms part of the outer surface of the housing, so as to improve the coordination of the housing of the floor brush device.

[0018] Furthermore, the outer surface of the baffle facing away from the roller brush is flat, forming part of the outer surface of the housing. The flat outer surface of the baffle avoids increasing the gap between the floor brush device and the wall, thus enabling the floor brush device to clean close to the wall.

[0019] A floor brush device includes a housing, a drive shaft is provided on a first side of the housing, the floor brush device further includes a roller brush assembly in any of the above embodiments, and a support portion for supporting the fixing frame is provided on a second side of the housing opposite to the first side.

[0020] Furthermore, the support portion has a first connecting surface and a second connecting surface, both of which are vertical surfaces. The first connecting surface faces the brush body and is provided with a first slot, while the second connecting surface is perpendicular to the axis of the brush body and is provided with a second slot. When the handle is rotated downwards to close, the two engaging parts are respectively engaged into the two slots. When the handle is rotated upwards to open, the two engaging parts are respectively disengaged from the two slots.

[0021] Alternatively, the support portion has a first connecting surface and a second connecting surface, the first connecting surface being a vertical surface and the second connecting surface being a horizontal surface. The first connecting surface faces the brush body and is provided with a first slot, and the second connecting surface is located below the handle and is provided with a second slot. When the handle is rotated downwards to close, the two engaging parts are respectively engaged into the two slots. When the handle is rotated upwards to open, the two engaging parts are respectively disengaged from the two slots.

[0022] Compared with the prior art, the beneficial effects of the embodiments of the present invention are as follows:

[0023] The roller brush assembly provided by this invention features a handle on the fixing frame connecting the roller brush. The handle has two locking parts: a first locking part for securing the roller brush body to the outer shell of the floor brush device, and a second locking part for locking the handle to the outer shell of the floor brush device. This simplifies the structure of the floor brush device by requiring only corresponding slots on its outer shell. Furthermore, these two locking parts increase the stability of the roller brush body on the device. Additionally, the roller brush assembly can be easily removed by gripping the handle, making installation convenient.

[0024] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The same reference numerals with or without letter suffixes may indicate different instances of similar parts. The drawings generally illustrate various embodiments by way of example rather than limitation and are used, together with the description and claims, to illustrate the disclosed embodiments. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method.

[0026] Figure 1 This is a schematic diagram of the brush assembly in the first embodiment of the present invention when the handle is open;

[0027] Figure 2 This is a schematic diagram of the brush assembly in the first embodiment of the present invention when the handle is closed;

[0028] Figure 3 This is an exploded view of the roller brush assembly according to the first embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the roller brush assembly according to the second embodiment of the present invention;

[0030] Figure 5 This is an exploded view of the roller brush assembly according to the second embodiment of the present invention;

[0031] Figure 6 This is a schematic diagram of the structure of the floor brush device according to an embodiment of the present invention;

[0032] Figure 7 This is an exploded view of the floor brush device according to the first embodiment of the present invention;

[0033] Figure 8 This is an exploded view of the floor brush device according to the second embodiment of the present invention.

[0034] In the figure: 1-Roller brush assembly; 10-Roller brush body; 11-Fixing frame; 110-Baffle; 111-First mounting base; 112-Second mounting base; 113-Protruding ridge; 114-Rotating shaft; 115-Torsion spring; 116-Groove; 12-Handle; 120-Second snap-fit ​​part; 121-First snap-fit ​​part; 2-Outer shell; 20-First connecting surface; 21-Second connecting surface; 22-First slot; 23-Second slot; 24-Slide groove; 25-Protrusion; 3-Drive shaft; 4-Decorative cover. Detailed Implementation

[0035] To enable those skilled in the art to better understand the technical solutions of the embodiments of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] This invention provides a roller brush assembly for use in a floor brush device, the floor brush device having a housing 2 and a drive shaft 3 disposed on the housing 2. For example... Figures 1 to 2 As shown, the roller brush assembly 1 mainly includes a roller brush body 10, a fixing frame 11, and a handle 12 provided on the fixing frame 11.

[0037] The first end of the roller brush body 10 is used to drive the drive shaft 3 inside the housing 2 so as to drive the roller brush body 10 to rotate through the drive shaft 3 to clean the ground.

[0038] The mounting bracket 11 is connected to the second end of the roller brush body 10. A handle 12 is provided on the mounting bracket 11 and can be rotated upwards to open or downwards to close relative to the mounting bracket 11. When the handle 12 is rotated upwards to open, the roller brush assembly 1 can be removed from the floor brush device by holding the handle 12.

[0039] It should be understood that the orientation or positional relationship indicated by "up" and "down" in this embodiment and the embodiments below are based on the orientation or positional relationship shown by the floor brush device in the accompanying drawings, wherein "up" refers to the side of the floor brush device away from the ground, and "down" refers to the side of the floor brush device facing the ground.

[0040] In this embodiment, the handle 12 has a first engaging portion 121 and a second engaging portion 120 on different sides. When the handle 12 is rotated downwards to close, the first engaging portion 121 and the second engaging portion 120 can engage with the outer casing 2 respectively, so as to simultaneously fix the roller brush body 10 to the outer casing 2 and lock the handle 12 to the outer casing 2. When the handle 12 is rotated upwards to open, the first engaging portion 121 and the second engaging portion 120 disengage from the outer casing 2 respectively, so as to simultaneously release the roller brush body 10 and the handle 12.

[0041] In this embodiment, the first snap-fit ​​portion 121 on the roller brush assembly 1 is used to fix the roller brush body 10, and the second snap-fit ​​portion 120 is used to lock the handle 12. These two snap-fit ​​portions can increase the stability of the roller brush body 10 placed on the roller brush device. Moreover, the corresponding slots can be directly provided on the outer shell 2 of the floor brush device, eliminating the need for a locking mechanism for the roller brush body 10 on the floor brush device, thus simplifying the structure of the floor brush device.

[0042] In some embodiments, such as Figure 3 As shown, the fixing frame 11 includes a baffle 110 and a first mounting seat 111 and a second mounting seat 112 disposed on the baffle 110.

[0043] The baffle 110 is vertically arranged. The first mounting base 111 and the second mounting base 112 are located on the inner side of the baffle 110 facing the brush body 10.

[0044] The handle 12 is rotatably mounted on the first mounting base 111, and the second end of the roller brush body 10 is rotatably mounted on the second mounting base 112. The first mounting base 111 is located above the second mounting base 112, thereby facilitating the rotation of the handle 12.

[0045] In some embodiments, the baffle 110 is provided with a first positioning part. Correspondingly, the floor brush device may be provided with a second positioning part. When the roller brush assembly 1 is placed on the floor brush device, the first positioning part and the second positioning part are interlocked to position the roller brush assembly 1 on the housing of the floor brush device, thereby restricting the movement of the roller brush assembly 1 along the axial direction of the roller brush body 10. The first positioning part can cooperate with the locking action of the first locking part 121 and the housing 2 to ensure that the floor brush body 10 does not shake on the housing 2.

[0046] like Figure 3 As shown, the first positioning part on the baffle 110 can be a protruding rib 113 provided along the vertical side of the baffle 110. The bottom end of the protruding rib 113 is provided with a downwardly protruding plug. The second positioning part on the housing 2 of the floor brush device can be configured as a sliding groove adapted to the protruding rib 113 and a slot corresponding to the plug.

[0047] When the roller brush assembly 1 is placed on the floor brush device, the protrusion 113 can extend into the slide groove and move along the slide groove to insert the plug into the slot.

[0048] like Figure 4 and Figure 8 As shown, the first positioning part can also be a groove 116 provided at the bottom of the baffle 110. Correspondingly, a protrusion 25 can be provided on the floor brush device. When the roller brush assembly 1 is placed on the floor brush device, the protrusion 25 is inserted into the groove 116 to position the roller brush assembly 1 on the outer shell of the floor brush device, thereby restricting the movement of the roller brush assembly 1 along the axial direction of the roller brush body 10.

[0049] Alternatively, in other embodiments, the bottom of the first mounting base 111 may protrude downward to form a plug-in portion, which forms the aforementioned first positioning portion. Correspondingly, the housing 2 is provided with a plug-in groove, and the plug-in portion can be inserted into the plug-in groove to restrict the movement of the roller brush assembly 1 along the axial direction of the roller brush body 10.

[0050] like Figure 1 , Figure 2 as well as Figure 5 As shown, the handle 12 is rotatably mounted on the first mounting base 111 via a rotating shaft 114. The axis of the rotating shaft 114 is parallel to the axis of the brush body 10. The handle 12 is opened when rotated upward and closed when rotated downward.

[0051] In some embodiments, a torsion spring 115 may also be fitted onto the rotating shaft 114. When the handle 12 is rotated downwards, the torsion spring 115 accumulates elastic potential energy; when the handle 12 is rotated upwards, the torsion spring 115 releases elastic potential energy to assist the handle 12 in rotating upwards.

[0052] In this embodiment, the first end of the handle 12 is rotatably connected to the first mounting base 111 via a pivot 114, and the second end forms a free end. The operator can pull the floor brush body 10 upward from the floor brush device by holding the second end to remove the roller brush assembly 1.

[0053] Preferably, such as Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, the first latching portion 121 and the second latching portion 120 on the handle 12 are located on both sides of the rotating shaft 114. The first latching portion 121 is located on the rear side of the rotating shaft 114, and the second latching portion 120 is located on the front side of the rotating shaft 114. It should be understood that in this embodiment and in the embodiments below, "front side" refers to the side closer to the second end of the handle 12, and "rear side" refers to the side closer to the first end of the handle 12.

[0054] The first locking part 121 is located on the end face of the first end of the handle 12, and the second locking part 120 is located on one side of the handle 12 along the axis of the brush body 10.

[0055] When the handle 12 is rotated downwards to close, the first locking part 121 located on the rear side rotates upwards to engage with the housing 2 of the floor brush device, and the first locking part 121 located on the front side rotates downwards to engage with the housing 2 of the floor brush device. When the handle 12 is rotated upwards to open, the movement processes of the first locking part 121 and the second locking part 120 are reversed. The two locking parts are located on both sides of the rotating shaft 114, which can reduce the effort required to rotate the handle 12 upwards.

[0056] The specific shapes of the first latching portion 121 and the second latching portion 120 in this embodiment are not specifically limited by the present invention.

[0057] For example, in some embodiments, such as Figure 3 As shown, the first latching portion 121 can be a block structure extending outward from the end face of the first end of the handle 12. The second latching portion 120 can be a shaft structure extending outward from the side wall face of the handle 12.

[0058] Or, such as Figure 4 and Figure 5 As shown, in some embodiments, the second latching portion 120 may also be a two-pronged structure extending downward from the bottom of the handle 12.

[0059] In some embodiments, the upper surface of the handle 12 is flat, and the top of the first mounting base 111 is provided with a recess. When the handle 12 is closed, the handle 12 is embedded in the recess, and the upper surface of the handle 12 is connected to the housing 2 of the floor brush device, forming part of the outer surface of the housing 2, thereby ensuring the harmony of the housing 2 of the floor brush device.

[0060] In some embodiments, the outer side of the baffle 110 facing away from the roller brush body 10 is also flat, and it similarly forms part of the outer surface of the housing 2 of the floor brush device. The flat outer side of the baffle 110 can avoid increasing the gap between the floor brush device and the wall, so as to enable the floor brush device to clean against the wall.

[0061] This invention also provides a floor brush device. For example... Figures 6 to 8 As shown, the floor brush device includes a housing 2 and a roller brush assembly 1 in any of the above embodiments.

[0062] In this embodiment, the outer casing 2 has a drive shaft 3 on the left side for driving the roller brush body 10 to rotate, and a support portion on the right side. The first end of the roller brush body 10 in the roller brush assembly 1 is connected to the drive shaft 3, and the second end is connected to the fixing bracket 11, which is placed on the support portion. Furthermore, the front side of the outer casing 2 in this embodiment is also provided with a decorative cover 4 for covering the roller brush assembly 1.

[0063] like Figure 7 As shown, in some embodiments, the support portion is provided with an adjacent first connecting surface 20 and a second connecting surface 21. Both the first connecting surface 20 and the second connecting surface 21 are vertical surfaces.

[0064] The first connecting surface 20 is positioned facing the roller brush body 10 in the roller brush assembly 1, and a first slot 22 is provided thereon.

[0065] The second connecting surface 21 is located on one side of the handle 12, and a second slot 23 is provided on it, which extends to the upper end of the first connecting surface 20.

[0066] When the handle 12 is rotated downwards, the first locking part 121 rotates upwards to engage in the first locking groove 22. Correspondingly, the second locking part 120 rotates downwards to engage in the second locking groove 23.

[0067] In this embodiment, the position of the second connecting surface 21 can be determined based on the position of the second snap-fit ​​portion 120. For example, as Figure 8As shown, in some other embodiments, when the second latching portion 120 extends downward from the bottom of the handle 12 to form a plug, the second connecting surface 21 is a horizontal surface and is located below the handle 12, and the second slot 23 is formed by the downward recess of the second connecting surface 21. It should be noted that the second slots 23 on the second connecting surface 21 do not extend vertically along the whole, but extend obliquely downward or have a portion extending obliquely downward, so that when the second latching portion 120 is engaged in the second slot 23, it can undergo a certain deformation to tightly abut against the obliquely downward extending side wall of the second slot 23, thereby locking the second latching portion 120 onto the housing 2. The operator needs to apply a certain external force to the handle 12 to rotate the handle 12 upward to disengage the second latching portion 120 from the second slot 23, so as to ensure that the handle can be firmly locked onto the housing 2.

[0068] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A roller brush assembly for use in a floor brush device, the floor brush device having a housing (2) and a drive shaft (3) disposed on the housing (2), characterized in that, The roller brush assembly includes: The first end of the roller brush body (10) is used to connect to the drive shaft (3) so as to drive the roller brush body (10) to rotate through the drive shaft (3); A fixing frame (11) is connected to the second end of the roller brush body (10); A handle (12) is provided on the fixed frame (11) and can be rotated upward to open or downward to close relative to the fixed frame (11). The handle (12) is provided with a first latching part (121) and a second latching part (120) located on different sides of it. When the handle (12) is rotated downwards to close, the first latching part (121) and the second latching part (120) respectively latch onto the outer shell (2) to simultaneously fix the roller brush body (10) onto the outer shell (2) and lock the handle (12) onto the outer shell (2); when the handle (12) is rotated upwards to open, the first latching part (121) and the second latching part (120) respectively disengage from the outer shell (2) to simultaneously release the roller brush body (10) and the handle (12). The first snap-fit ​​part (121) is used to fix the roller brush body (10) on the housing (2) of the floor brush device, and the second snap-fit ​​part (120) is used to lock the handle (12) on the housing (2) of the floor brush device; The outer casing (2) of the floor brush device is provided with a first positioning part, and the vertical side or bottom of the baffle (110) is provided with a second positioning part. The second positioning part is used to be inserted into the first positioning part so that the roller brush assembly is positioned on the outer casing (2) of the floor brush device to restrict the roller brush assembly (1) from moving along the axial direction of the roller brush body (10).

2. The roller brush assembly as described in claim 1, characterized in that, The fixing frame (11) includes: Baffle (110), which is set vertically; The first mounting base (111) and the second mounting base (112) are both located on the inner side of the baffle (110) facing the brush body (10), and the first mounting base (111) is located above the second mounting base (112); the handle (12) is rotatably mounted on the first mounting base (111), and the second end of the brush body (10) is rotatably mounted on the second mounting base (112).

3. The roller brush assembly as described in claim 2, characterized in that, The first end of the handle (12) is rotatably mounted on the first mounting base (111) via a rotating shaft (114). The first snap-fit ​​part (121) and the second snap-fit ​​part (120) are located on both sides of the rotating shaft (114). The end face of the first end of the handle (12) protrudes outward to form the first snap-fit ​​part (121).

4. The roller brush assembly as described in claim 3, characterized in that, The handle (12) protrudes outward on the side opposite to the baffle (110) to form the second latching part (120).

5. The roller brush assembly as described in claim 3, characterized in that, The bottom of the handle (12) protrudes downward to form the second latching part (120).

6. The roller brush assembly as described in claim 3, characterized in that, The upper surface of the handle (12) is flat, and the first mounting base (111) is provided with a recessed groove; when the handle (12) is closed, the handle (12) is embedded in the recessed groove, and the upper surface of the handle (12) forms part of the outer surface of the outer shell (2).

7. The roller brush assembly as described in claim 2, characterized in that, The outer side of the baffle (110) facing away from the brush body (10) is flat and forms part of the outer surface of the shell (2).

8. A floor brush device, comprising a housing (2), wherein a drive shaft (3) is provided on a first side of the housing (2), characterized in that, The floor brush device further includes a roller brush assembly as described in any one of claims 1-7, wherein the second side of the housing (2) opposite to the first side is provided with a support portion for supporting the fixing frame (11).

9. A floor brush device as described in claim 8, characterized in that, The support portion has a first connecting surface (20) and a second connecting surface (21). Both the first connecting surface (20) and the second connecting surface (21) are vertical surfaces. The first connecting surface (20) faces the roller brush body (10) and is provided with a first slot (22). The second connecting surface (21) is perpendicular to the axis of the roller brush body (10) and is provided with a second slot (23). When the handle (12) is rotated downward to close, the two locking parts are respectively locked into the two slots. When the handle (12) is rotated upward to open, the two locking parts are respectively disengaged from the two slots. Alternatively, the support portion has a first connecting surface (20) and a second connecting surface (21), the first connecting surface (20) being a vertical surface and the second connecting surface (21) being a horizontal surface, the first connecting surface (20) being disposed facing the roller brush body (10) and having a first slot (22), and the second connecting surface (21) being located below the handle (12) and having a second slot (23); when the handle (12) is rotated downward to close, the two engaging parts are respectively engaged into the two slots; when the handle (12) is rotated upward to open, the two engaging parts are respectively disengaged from the two slots.

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