Floor brush device and surface cleaning apparatus

Abstract

The utility model relates to a floor brush device and surface cleaning equipment, floor brush device includes: floor brush main part, it is equipped with first mounting structure, drive motor, it includes motor main body and damper, motor main body has first end and second end, first end passes through damper and is installed to first mounting structure, damper includes at least one mounting piece and at least one damping element, at least one mounting piece is used to connect first end with first mounting structure, at least one damping element can be installed between first end and any one mounting piece, or at least one damping element can be installed between first mounting structure and any one mounting piece. The utility model discloses floor brush device, floor brush device, the structure of drive motor is improved, and the motor main body is installed with floor brush main body through the damper, and the damper can effectively reduce the vibration that absorbs the motor main body transmits to floor brush main body while playing the installation effect, obviously reduces the vibration of floor brush device, improves the effect of reducing noise.

Description

Technical Field

[0001] This utility model relates to the field of cleaning equipment technology, and in particular to a floor brush device and surface cleaning equipment. Background Technology

[0002] A floor scrubber is a device used for cleaning floors and is widely used in homes, commercial spaces, and industrial areas. The floor brush unit is one of the important components of a floor scrubber. The floor brush unit mainly includes the floor brush body, the drive motor, and the roller brush body. One end of the drive motor is installed in the floor brush body, and the other end of the drive motor is in transmission cooperation with the inner wall of the roller brush body. The drive motor is used to drive the roller brush body to rotate, so that the roller brush body can clean dirt.

[0003] During operation, the noise of a floor scrubber mainly comes from the main unit and the floor brush device. The noise of the floor brush device mainly comes from the drive motor. Currently, some floor brush devices use bearings to maintain rotational dynamic balance in order to reduce noise. However, the noise reduction effect of this solution is limited. How to improve the noise reduction effect of the floor brush device is one of the technical problems that need to be solved by those skilled in the art. Utility Model Content

[0004] Based on the aforementioned deficiencies in the existing technology, the purpose of this utility model is to provide a floor brush device that improves the structure of the drive motor. The motor body is installed on the floor brush body through a shock absorber. While serving as the installation device, the shock absorber can also effectively reduce and absorb the vibration transmitted from the motor body to the floor brush body, significantly reducing the vibration of the floor brush device and improving the noise reduction effect.

[0005] Therefore, the present invention provides the following technical solution.

[0006] This utility model provides a floor brush device, the floor brush device comprising:

[0007] The main body of the floor brush has a first mounting structure;

[0008] A drive motor includes a motor body and a vibration damper. The motor body has a drive shaft and a first end and a second end. The first end and the second end are spaced apart along the axial direction of the drive shaft. The first end is mounted on a first mounting structure via the vibration damper.

[0009] The vibration damper includes at least one mounting member and at least one vibration damping element. The at least one mounting member is used to connect the first end to the first mounting structure, and the at least one vibration damping element can be installed between the first end and any one mounting member, or at least one vibration damping element can be installed between the first mounting structure and any one mounting member.

[0010] In the existing technology, the floor brush device uses bearings to maintain the rotational dynamic balance of the drive motor in order to reduce vibration. However, due to errors in the processing or assembly process, the drive motor will inevitably vibrate during operation. The vibration of the drive motor will impact the parts that it is in contact with, and cause the parts that it is in contact with to also vibrate, resulting in noise superposition and a poor user experience.

[0011] The above-mentioned technical solution of this application improves the structure of the drive motor. The drive motor includes a motor body and a shock absorber. The shock absorber includes at least one mounting part and at least one vibration damping element. The motor body is mounted to the brush body through a first mounting structure of the shock absorber, and the positional relationship between at least the first mounting part and at least one vibration damping element is defined, so that the shock absorber can effectively absorb the vibration transmitted from the motor body to the brush body, thereby reducing the noise generated by the vibration of the brush body, significantly reducing the vibration of the brush device, and improving the noise reduction effect. The shock absorber plays the role of mounting and vibration damping at the same time, making its functions more comprehensive.

[0012] Optionally, the vibration damper includes a mounting member and a damping element, wherein the first end is mounted to the first mounting structure via the mounting member; the damping element is located between the first end and the mounting member, or the damping element is located between the mounting member and the first mounting structure; or

[0013] The vibration damper includes a mounting component and two damping elements; one damping element is located between the first end and the mounting component, and the other damping element is located between the mounting component and the first mounting structure; or

[0014] The vibration damper includes two mounting members and one damping element; wherein the two mounting members are connected to each other, one mounting member is connected to the first end, and the other mounting member is connected to the first mounting structure; the damping element is located between the first end and the mounting member connected thereto, or the damping element is located between the first mounting structure and the mounting member connected thereto, or the damping element is located between the two mounting members; or

[0015] The vibration damper includes two mounting members and two damping elements; wherein the two mounting members are connected to each other, one mounting member is connected to the first end, and the other mounting member is connected to the first mounting structure, one damping element is located between the first end and the mounting member connected thereto, and the other damping element is located between the first mounting structure and the mounting member connected thereto; or, one damping element is located between the first end and the mounting member connected thereto, and the other damping element is located between the two mounting members; or, one damping element is located between the first mounting structure and the mounting member connected thereto, and the other damping element is located between the two mounting members.

[0016] In the above scheme, different installation effects and vibration reduction effects can be achieved by limiting the number and installation position of mounting parts and vibration damping elements according to different first mounting structures of drive motor and floor brush body.

[0017] Optionally, the shock absorber includes a first mounting member, which includes an annular mounting portion and a first mounting post, the first mounting post being used to mount to the first mounting structure;

[0018] The vibration damper includes a first vibration damping element and a second vibration damping element, wherein the first vibration damping element is located between the first end and the first mounting component;

[0019] The second damping element is sleeved on the first mounting post, and the second damping element and the first damping element clamp the annular mounting portion facing each other in the axial direction of the drive shaft.

[0020] In the above solution, for different structures of the floor brush body and different first mounting structures, the structure of the first mounting component can be modified to adapt to different first mounting structures without modifying the structure of the motor body, thus reducing modification costs. Furthermore, by absorbing the vibration transmitted from the motor body to the first mounting component through the first vibration damping element, the vibration transmitted from the first mounting component to the floor brush body can be reduced. Moreover, by configuring a second vibration damping element and defining the assembly method between the second vibration damping element and the first mounting component, the vibration of the first mounting component can be further effectively and significantly reduced, thus effectively reducing noise.

[0021] Optionally, the drive motor further includes a pressing element, which is sleeved on the outer periphery of the first mounting post, and the pressing element and the annular mounting portion clamp the second vibration damping element facing each other in the axial direction of the drive shaft.

[0022] In the above solution, by configuring the pressure-blocking element, the second vibration damping element can be tightly fitted with the annular mounting part to ensure effective vibration damping. Furthermore, by increasing the contact area between the pressure-blocking element and the second vibration damping element, the lifespan of the second vibration damping element can be avoided from being reduced due to stress concentration when subjected to force.

[0023] Optionally, the vibration damper further includes a second mounting member, the first end being mounted on the first mounting member via the second mounting member, the first mounting member and the second mounting member clamping the first vibration damping element facing each other in the axial direction of the drive shaft; at least one of the first mounting member and the second mounting member engaging with the first vibration damping element; at least one of the first mounting member and the pressing element engaging with the second vibration damping element.

[0024] In the above solution, the first mounting component and the second mounting component together clamp the first vibration damping element. The first vibration damping element is easy to assemble, and its assembly does not require any modification to the structure of the motor body. Furthermore, the first vibration damping element can absorb vibrations in the axial, radial, and circumferential directions from at least one of the first and second mounting components, thereby improving the vibration damping effect.

[0025] Optionally, the floor brush device further includes a roller brush body, and the drive motor is at least partially inserted into the roller brush body;

[0026] The drive motor also includes a transmission head, which is connected to the drive shaft of the motor body; the transmission head is in transmission cooperation with the roller brush body through a second vibration damping structure, so that the motor body drives the roller brush body to rotate.

[0027] In the above scheme, the vibration damping element in the vibration isolator constitutes the first vibration damping structure, and a second vibration damping structure is provided between the transmission head and the main body of the roller brush. The multi-faceted vibration damping works together to significantly reduce vibration and improve noise reduction effect.

[0028] Optionally, the transmission head includes multiple transmission protrusions, and the inner wall of the roller brush body is provided with a connecting groove, wherein the transmission protrusions are in transmission engagement with the connecting groove;

[0029] The second vibration damping structure includes a third vibration damping element, which is sleeved on the transmission protrusion to block the transmission protrusion from the connecting groove.

[0030] In the above scheme, each transmission protrusion is equipped with a corresponding third damping element to absorb the vibration transmitted from the transmission protrusion to the transmission cavity.

[0031] Optionally, all the transmission protrusions are spaced apart along the rotation direction of the drive shaft.

[0032] The second vibration damping structure further includes a fourth vibration damping element, which includes multiple enclosing cavities. The fourth vibration damping element is sleeved on the outer periphery of the transmission head. The enclosing cavities, the transmission protrusion, and the third vibration damping element are arranged in a one-to-one correspondence. The transmission protrusion and the corresponding third vibration damping element are enclosed by the corresponding enclosing cavity.

[0033] In the above scheme, by configuring a fourth vibration damping element to simultaneously wrap all the transmission protrusions, a two-stage vibration absorption is formed, which can significantly reduce the vibration transmitted from the transmission head to the transmission cavity.

[0034] Optionally, the motor body includes a motor housing and a motor power component, the motor power component is located inside the motor housing, and a third vibration damping structure is provided between the motor power component and the motor housing.

[0035] In the above solution, the structure of the drive motor of the floor brush device is improved. By configuring a first vibration damping structure, a second vibration damping structure and a third vibration damping structure, the vibration transmitted from the motor body to the floor brush body, the vibration transmitted from the transmission head to the roller brush body, and the vibration transmitted from the motor power component to the motor housing are absorbed respectively. This can reduce the vibration of the floor brush body, the roller brush body and the motor body. The multi-faceted vibration damping can significantly reduce the vibration sensation and improve the noise reduction effect.

[0036] Optionally, the motor housing includes a first housing and a second housing that are detachably connected. The second housing is located on the side of the first housing away from the vibration damper. The motor power component has an abutment surface, and the abutment surface and the inner wall of the second housing together clamp the third vibration damping structure.

[0037] In the above scheme, the motor housing is set as a split structure. In this way, the third vibration damping structure can be placed in the second housing first, then the motor power components can be assembled with the second housing, and finally the first housing can be installed, which reduces the assembly difficulty.

[0038] This utility model also provides a surface cleaning device, which includes the floor brush device described above.

[0039] This utility model has the following technical effects:

[0040] This utility model provides a floor brush device with an improved drive motor structure. The drive motor includes a motor body and a shock absorber. The shock absorber includes at least one mounting component and at least one vibration damping element. The motor body is mounted to the floor brush body via a first mounting structure of the shock absorber, and the positional relationship between at least the first mounting component and at least one vibration damping element is defined. This allows the shock absorber to effectively absorb the vibration transmitted from the motor body to the floor brush body, thereby reducing the noise generated by the vibration of the floor brush body, significantly reducing the vibration sensation of the floor brush device, and improving the noise reduction effect. The shock absorber also serves as a mounting and vibration damping device, making it more functional. Attached Figure Description

[0041] Figure 1 This is a three-dimensional structural diagram of the drive motor in the first embodiment of the present invention;

[0042] Figure 2 This is an exploded view of the drive motor structure in the first embodiment of this utility model;

[0043] Figure 3 This is an exploded view showing the assembly relationship of the pressing element, the second vibration damping element, the first mounting component, the first vibration damping element, and the second mounting component in the first embodiment of this utility model. Figure 1 ;

[0044] Figure 4This is an exploded view showing the assembly relationship of the pressing element, the second vibration damping element, the first mounting component, the first vibration damping element, and the second mounting component in the first embodiment of this utility model. Figure 2 ;

[0045] Figure 5 This is a three-dimensional sectional view of the cylindrical body of this utility model;

[0046] Figure 6 This is a cross-sectional view of the assembly structure of the drive motor and the main body of the roller brush in the first embodiment of this utility model.

[0047] Figure 7 This is an exploded view of the floor brush device in the first embodiment of this utility model;

[0048] Figure 8 This is a three-dimensional structural diagram of the drive motor in the second embodiment of the present invention;

[0049] Figure 9 This is an exploded view of the drive motor structure in the second embodiment of the present invention. Figure 1 ;

[0050] Figure 10 This is an exploded view showing the assembly relationship between the second vibration damping element, the first mounting component, and the third vibration damping element of this utility model.

[0051] Figure 11 This is an exploded view of the drive motor structure in the second embodiment of the present invention. Figure 2 ;

[0052] Figure 12 This is a side view of the fourth vibration damping element of this utility model;

[0053] Figure 13 This is a structural diagram of the transmission head of this utility model from one perspective;

[0054] Figure 14 This is a structural diagram of the transmission head from another perspective of this utility model.

[0055] Explanation of reference numerals in the attached figures

[0056] 100. Floor brush device;

[0057] 1. Floor brush body; 11. First installation structure; 12. Air duct inlet;

[0058] 2. Roller brush body; 21. Cylinder; 211. Connecting groove; 22. Cleaning components;

[0059] 3. Drive motor;

[0060] 31. Motor body; 311. Motor housing; 3111. Second mounting post; 3112. First housing; 3113. Second housing; 3114. First end; 3115. Second end; 312. Motor power component; 3121. Abutment surface; 3122. Drive shaft; 313. Third vibration damping structure; 314. Snap-fit ​​protrusion;

[0061] 32. Transmission head; 321. Transmission protrusion;

[0062] 30. Vibration damper;

[0063] 33. First vibration damping structure; 331. First vibration damping element; 3311. Second through hole; 3312. First protrusion; 3313. Second protrusion; 332. Second vibration damping element; 3321. Third through hole; 3322. Third slot; 3323. Fourth slot;

[0064] 34. Second vibration damping structure; 341. Third vibration damping element; 342. Fourth vibration damping element; 3421. Enclosure cavity;

[0065] 351, First mounting component; 3511, Annular mounting part; 35111, First through hole; 35112, First slot; 3512, First mounting post; 35121, Third protrusion;

[0066] 352. Second mounting component; 3521. Mounting plate; 35211. Groove; 35212. Second slot; 3522. Third mounting post;

[0067] 36. Pressing element; 361. Fourth through hole; 362. Fourth protrusion;

[0068] 371. First fastener; 372. Second fastener; 373. Third fastener. Detailed Implementation

[0069] To make the technical solution and beneficial effects of this utility model more apparent and understandable, a detailed description is provided below by listing specific embodiments. Unless otherwise defined, the technical and scientific terms used herein have the same meanings as those in the technical field to which this application pertains.

[0070] In the description of this utility model, unless otherwise expressly defined, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the purpose of simplifying the description of this utility model and do not indicate that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. That is, they should not be construed as limitations on this utility model.

[0071] In this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating the relative importance of the indicated features or the number of indicated technical features. Therefore, a feature specified as "first" or "second" can explicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two; "several" means at least one; unless otherwise expressly defined.

[0072] In this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "linking," "fixing," and "setting," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral molding; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can also refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0073] In this utility model, unless otherwise explicitly defined, the terms "above," "on top of," "above," "over," "below," "below," "below," or "below" for "first feature above second feature" can refer to direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Furthermore, "above," "above," and "over" for "first feature above second feature" can mean the first feature is directly above or diagonally above the second feature, or simply indicates that the horizontal height of the first feature is higher than the horizontal height of the second feature. Similarly, "below," "below," and "below" for "first feature below second feature" can mean the first feature is directly below or diagonally below the second feature, or simply indicates that the horizontal height of the first feature is lower than the horizontal height of the second feature.

[0074] The following is based on Figures 1 to 14 This invention provides a detailed description of the surface cleaning equipment.

[0075] In this embodiment, the surface cleaning equipment (not shown in the figure) includes a body (not shown in the figure) and a floor brush device 100. The body is equipped with a controller for controlling the operation of the floor brush device 100. The surface cleaning equipment includes, but is not limited to, manual or automatic cleaning equipment such as floor scrubbers and mops.

[0076] like Figure 1 , Figure 6 and Figure 7 As shown, the floor brush device 100 includes a floor brush body 1, a roller brush body 2, and a drive motor 3. The floor brush body 1 mainly serves to form a support structure and a floor brush air duct (not shown in the figure). For example, the bottom of the floor brush body 1 is used to support the surface to be cleaned (such as the ground). Of course, the floor brush device 100 can use the floor brush body 1 as a support structure, or it can use the roller brush body 2 as a support structure. The front of the floor brush body 1 is provided with a first mounting structure 11 and an air duct inlet 12. The "front" of the floor brush body 1 refers to the forward direction when working with the surface cleaning equipment. The roller brush body 2 includes a cylinder 21 and cleaning components 22 (such as bristles) that are circumferentially wrapped around the outer periphery of the cylinder 21. The drive motor 3 is at least partially inserted into the roller brush body 2. The roller brush body 2 is located at the air duct inlet 12. During the operation of the surface cleaning equipment, the roller brush body 2 can roll under the drive of the drive motor 3, and the rolling will pick up the dirt on the surface to be cleaned. The dirt will enter the floor brush air duct through the air duct inlet 12 under the air force, and then enter the wastewater tank on the machine body through the air duct of the machine body.

[0077] The floor brush body 1 is provided with a first mounting structure 11. The drive motor 3 includes a motor body 31 and a vibration damper 30. The motor body 31 has a drive shaft 3122 and a first end 3114 and a second end 3115. The first end 3114 and the second end 3115 are spaced apart along the axial direction of the drive shaft 3122. The first end 3114 is mounted to the first mounting structure 11 via the vibration damper 30. The vibration damper 30 includes at least one mounting member and at least one damping element. The number of mounting members can be one, two, three, or even more, and the number of damping elements can be one, two, three, or even more. For example, in some embodiments, the mounting member can be a first mounting member, a second mounting member, or other mounting members, and the damping element can be a first damping element, a second damping element, or other damping elements. At least one mounting member is used to connect the first end 3114 of the motor body 31 to the first mounting structure 11. Compared to the scheme where the motor body 31 is directly installed on the floor brush body 1, the vibration isolator configured in this scheme can improve the versatility of the drive motor 3. Specifically, for different structures of the floor brush body 1 and different first mounting structures 11, the structure of the mounting component can be modified to adapt to the different structures of the first mounting structure 11 without modifying the structure of the motor body 31, thus reducing modification costs.

[0078] At least one damping element can be installed between the first end 3114 and any one of the mounting members. Specifically, if there is one mounting member, the damping element is installed between the first end 3114 and the mounting member; if there are at least two mounting members, at least one damping element is installed between the first end 3114 and the adjacent mounting member, or at least one damping element is installed between two adjacent mounting members.

[0079] Alternatively, at least one damping element can be installed between the first mounting structure 11 and any one of the mounting members. Specifically, if there is one mounting member, the damping element is installed between the first mounting structure 11 and the mounting member; if there are at least two mounting members, at least one damping element is installed between the first mounting structure 11 and the adjacent mounting member, or at least one damping element is installed between two adjacent mounting members.

[0080] In the existing technology, the floor brush device uses bearings to maintain the rotational dynamic balance of the drive motor in order to reduce vibration. However, due to errors in the processing or assembly process, the drive motor will inevitably vibrate during operation. The vibration of the drive motor will impact the parts that it is in contact with, and cause the parts that it is in contact with to also vibrate, resulting in noise superposition and a poor user experience.

[0081] The above-mentioned technical solution of this application improves the structure of the drive motor 3. The drive motor includes a motor body 31 and a shock absorber. The shock absorber includes at least one mounting part and at least one vibration damping element. The motor body 31 is installed with the first mounting structure 11 of the floor brush body 1 through the shock absorber, and the positional relationship between at least the first mounting part and at least one vibration damping element is defined, so that the shock absorber can effectively absorb the vibration transmitted from the motor body 31 to the floor brush body 1, thereby reducing the noise generated by the vibration of the floor brush body 1, significantly reducing the vibration of the floor brush device 100, and improving the noise reduction effect. The shock absorber plays the role of installation and vibration damping at the same time, making its functions more comprehensive.

[0082] In one embodiment, the vibration damper 30 includes a mounting member and a damping element. A first end 3114 is mounted to a first mounting structure 11 via the mounting member. The damping element is located between the first end 3114 and the mounting member, and is used to absorb vibrations transmitted from the first end 3114 to the mounting member. Alternatively, the damping element is located between the mounting member and the first mounting structure 11, and is used to absorb vibrations transmitted from the mounting member to the first mounting structure 11, thereby reducing the vibration of the floor brush body 1 caused by the drive motor 3.

[0083] In another embodiment, the vibration damper 30 includes a mounting member and two vibration damping elements; one vibration damping element is located between the first end 3114 and the mounting member, and the other vibration damping element is located between the mounting member and the first mounting structure. In this way, the vibration transmitted by the drive motor 3 to the brush body 1 is absorbed by the two vibration damping elements in turn, and the vibration generated by the brush body 1 is significantly reduced after two stages of vibration damping.

[0084] In another embodiment, the vibration damper 30 includes two mounting members and a damping element; wherein the two mounting members are connected to each other, one mounting member is connected to the first end 3114, and the other mounting member is connected to the first mounting structure 11. The two mounting members cooperate to assemble the first end 3114 of the motor body 31 with the first mounting structure 11 of the floor brush body 1. The damping element is located between the first end 3114 and the mounting member connected thereto, and the damping element is used to absorb the vibration transmitted from the first end 3114 to the mounting member connected thereto. Alternatively, the damping element is located between the first mounting structure 11 and the mounting member connected thereto, and the damping element is used to absorb the vibration transmitted from the mounting member to the first mounting structure 11. Or, the damping element is located between the two mounting members, and the damping element is used to provide vibration damping between the two mounting members.

[0085] In another embodiment, the vibration damper 30 includes two mounting members and two damping elements. The two mounting members are connected to each other, with one mounting member connected to a first end 3114 and the other mounting member connected to a first mounting structure 11. The two mounting members cooperate to assemble the first end 3114 of the motor body 31 with the first mounting structure 11 of the floor brush body 1. One damping element is located between the first end 3114 and the connected mounting member, absorbing vibrations transmitted from the first end 3114 to the connected mounting member. The other damping element is located between the first mounting structure 11 and the connected mounting member, absorbing vibrations transmitted from the mounting member to the first mounting structure 11. Alternatively, one damping element is located between the first end 3114 and the connected mounting member, and the other damping element is located between the two mounting members. Or, one damping element is located between the first mounting structure and the connected mounting member, and the other damping element is located between the two mounting members.

[0086] For the drive motor 3, it can be fixedly connected to the first mounting structure 11 of the floor brush body 1 via the vibration damper 30, or it can be rotatably connected to the first mounting structure 11 via the vibration damper 30. If the drive motor 3 is rotatably connected to the first mounting structure 11 via the vibration damper 30, there will inevitably be movable space at the connection between the vibration damper 30 and the first mounting structure 11. Therefore, it is not necessary to set a vibration damping element between the first mounting structure 11 and the mounting component connected to it. It should be understood that in the above technical solution, different installation effects and vibration damping effects can be achieved by limiting the number and installation position of the mounting components and vibration damping elements according to different drive motors 3 and the first mounting structure 11 of the floor brush body 1.

[0087] In one implementation, such as Figures 1 to 4 , Figures 6 to 9 As shown, the shock absorber also includes a first mounting component 351, which includes an annular mounting portion 3511 and a first mounting post 3512. The first mounting post 3512 is used to mount the first mounting structure 11 of the floor brush body 1. Compared with the scheme where the motor body 31 is directly mounted to the floor brush body 1, the first mounting component 351 configured in this scheme can improve the versatility of the drive motor 3. Specifically, for different structures of the floor brush body 1 and different first mounting structures 11, the structure of the first mounting component 351 can be modified to adapt to the different structures of the first mounting structure 11 without modifying the structure of the motor body 31, thus reducing modification costs.

[0088] In addition, the vibration isolator includes a first vibration damping element 331 and a second vibration damping element 332. The first vibration damping element 331 is located between the first end 3114 of the motor body 31 and the first mounting member 351. The first vibration damping element 331 absorbs the vibration transmitted from the motor body 31 to the first mounting member 351, thereby reducing the vibration transmitted from the first mounting member 351 to the floor brush body 1. The second vibration damping element 332 is sleeved on the first mounting post 3512. The second vibration damping element 332 and the first vibration damping element 331 clamp the annular mounting portion 3511 facing each other in the axial direction of the drive shaft 3122. In this way, when the vibration generated by the motor body 31 is transmitted to the first mounting member 351, the second vibration damping element 332, sleeved on the first mounting post 3512, can absorb the radial vibration generated by the first mounting member 351. At the same time, since the second vibration damping element 332 abuts against the annular mounting portion 3511 in the axial direction, the second vibration damping element 332 can also absorb the axial vibration generated by the first mounting member 351. In this solution, by configuring the second vibration damping element 332 and limiting the assembly method of the second vibration damping element 332 and the first mounting member 351, the vibration of the first mounting member 351 can be effectively and significantly further reduced, thus effectively reducing noise.

[0089] Furthermore, such as Figure 1 and Figure 2 As shown, the drive motor 3 also includes a pressing element 36, which is sleeved on the outer periphery of the first mounting post 3512. The pressing element 36 axially presses the second damping element 332 against the annular mounting portion 3511, so that the second damping element 332 can maintain a tight fit with the annular mounting portion 3511, ensuring effective vibration damping. Furthermore, by increasing the contact area between the pressing element 36 and the second damping element 332, the lifespan of the second damping element 332 can be prevented from being reduced due to stress concentration under force. Of course, as... Figure 8 and Figure 9 As shown, the drive motor 3 may also be without the pressing element 36, and the second damping element 332 may be pressed against the annular mounting part 3511 by the first fastener 371.

[0090] It should be understood that if the first mounting structure 11 cooperates with the first mounting member 351, the first mounting member 351 can rotate relative to the first mounting structure 11, so that the drive motor 3 together with the roller brush body 2 can rotate relative to the first mounting structure 11, thereby causing the axis of the drive shaft 3122 to deviate from its original position, thus facilitating the removal of the roller brush body 2 from the first mounting structure 11. Since the first mounting member 351 needs to be able to rotate relative to the first mounting structure 11 (at this time, the rotation axis of the first mounting member 351 and the rotation axis of the drive shaft 3122 are not parallel to each other), a certain clearance will be left between the annular mounting portion 3511 and the first mounting member 351 to provide space for the movement of the first mounting member 351 relative to the first mounting structure 11. At this time, the second damping element 332 can be omitted to avoid unnecessary cost waste.

[0091] In one implementation, such as Figures 8 to 10 As shown, the first end 3114 of the motor body 31 is directly assembled with the first mounting part 351, and one end of the motor housing 311 and the first mounting part 351 clamp the first damping element 331 facing each other in the axial direction of the drive shaft 3122. Furthermore, the first mounting part 351 and the first damping element 331 are engaged to further improve the damping effect of the first damping element 331. Furthermore, the motor housing 311 of the motor body 31 is provided with a plurality of second mounting posts 3111 facing the first mounting member 351. The first mounting member 351 is provided with a plurality of first through holes 35111. The second mounting posts 3111 are arranged in a one-to-one correspondence with the first through holes 35111. The second mounting posts 3111 pass through the first through holes 35111. The motor housing 311 is fixed to the first mounting member 351 by the assembly of the first fastener 371 (such as screw) with the mounting hole on the second mounting post 3111. In addition, the first end 3114 of the motor body 31 presses the first damping element 331 against the first mounting member 351.

[0092] Of course, the assembly method of the motor body 31 and the first mounting part 351 is not limited to this. In another embodiment, such as Figures 1 to 3 As shown, the drive motor 3 also includes a second mounting member 352. The first end 3114 of the motor body 31, the second mounting member 352, the first damping element 331, and the first mounting member 352 are sequentially distributed along the axial direction of the motor body 31. The first end 3114 of the motor body 31 is mounted to the first mounting member 351 via the second mounting member 352. That is, the first mounting member 351 and the second mounting member 352 cooperate to mount the first end 3114 of the motor body 31 to the floor brush body 1. In addition, the first mounting member 351 and the second mounting member 352 clamp the first damping element 331 facing each other in the axial direction of the drive shaft 3122. The first damping element 331 is easy to assemble, and the assembly of the first damping element 331 does not require any modification to the structure of the motor body 31.

[0093] In one specific implementation, such as Figures 1 to 7 As shown, the first end 3114 of the motor body 31 is installed with the floor brush body 1 through the cooperation of the first mounting part 351 and the second mounting part 352, and is equipped with a first damping element 331 and a second damping element 332 for multi-stage vibration damping. The second mounting part 352 includes a mounting plate 3521 and a plurality of third mounting posts 3522. The mounting plate 3521 has a groove 35211 on the side facing the motor body 31, and the motor body 31 has a snap-fit ​​protrusion 314 on the side facing the second mounting part 352. The snap-fit ​​protrusion 314 snaps into the groove 35211 to realize the installation of the motor body 31 and the second mounting part 352. The third mounting post 3522 is located on the side of the mounting plate 3521 facing away from the motor body 31. The first damping element 331 has a second through hole 3311, the second damping element 332 has a third through hole 3321, and the pressing element 36 has a fourth through hole 361. The third mounting post 3522, the second through hole 3311, the first through hole 35111, the third through hole 3321, and the fourth through hole 361 are arranged in a one-to-one correspondence. The third mounting post 3522 passes through the second through hole 3311 in sequence. The first through hole 35111 and the third through hole 3321 abut against the pressing element 36. The fourth through hole 361 is aligned with the mounting hole on the third mounting post 3522. The first fastener 371 passes through the fourth through hole 361 and the mounting hole on the third mounting post 3522 to assemble the pressing element 36, the second vibration damping element 332, the first mounting part 351, the first vibration damping element 331, the second mounting part 352, and the first end 3114 of the motor body 31.

[0094] In yet another specific implementation, such as Figures 8 to 10As shown, the motor body 31 does not have a second mounting part 352 and abutting element 36, while the structures of the first mounting part 351, the first damping element 331, and the second damping element 332 remain unchanged. The first end 3114 of the motor body 31 is mounted to the floor brush body 1 through the first mounting part 351 and is equipped with the first damping element 331 and the second damping element 332. The first damping element 331 and the second damping element 332 are axially abutted against the annular mounting portion 3511 of the first mounting part 351, and the second damping element 332 is sleeved on the first mounting post 3512 of the first mounting part 351 to perform multi-stage vibration damping. The motor housing 311 is provided with a plurality of second mounting posts 3111, the annular mounting part 3511 is provided with a first through hole 35111, the first vibration damping element 331 is provided with a second through hole 3311, and the second vibration damping element 332 is provided with a third through hole 3321. The second mounting posts 3111 pass through the second through hole 3311, the first through hole 35111, and the third through hole 3321 in sequence. The first fastener 371 is assembled with the mounting hole on the second mounting post 3111 to assemble the second vibration damping element 332, the first mounting part 351, the first vibration damping element 331, and the first end 3114 of the motor body 31.

[0095] In one implementation, such as Figures 1 to 4 As shown, at least one of the first mounting member 351 and the second mounting member 352 is engaged with the first vibration damping element 331. Thus, the first vibration damping element 331 can absorb vibrations from at least one of the first mounting member 351 and the second mounting member 352 in the axial, radial, and circumferential directions, improving the vibration damping effect. In one specific embodiment, the first mounting member 351 is provided with a first slot 35112, and the first vibration damping element 331 has a first protrusion 3312 and a second protrusion 3313 on both sides. The second mounting member 352 has a second slot 35212 on the side facing the first vibration damping element 331. The first slot 35112 engages with the first protrusion 3312, and the second protrusion 3313 engages with the second slot 35212. Thus, the first vibration damping element 331 can absorb vibrations from both the first mounting member 351 and the second mounting member 352 in the axial, radial, and circumferential directions, improving the vibration damping effect.

[0096] In one implementation, such as Figures 1 to 4As shown, at least one of the first mounting member 351 and the pressing element 36 is engaged with the second vibration damping element 332. In this way, the second vibration damping element 332 can absorb the vibration of at least one of the first mounting member 351 and the pressing element 36 in the axial, radial and circumferential directions, thereby improving the vibration damping effect. In one specific embodiment, the outer periphery of the first mounting post 3512 of the first mounting member 351 is provided with a third protrusion 35121, the annular hole of the second damping element 332 is provided with a third slot 3322, the side of the second damping element 332 facing the pressing element 36 is provided with a fourth slot 3323, and the side of the pressing element 36 facing the second damping element 332 is provided with a fourth protrusion 362. The third protrusion 35121 is engaged with the third slot 3322, and the fourth slot 3323 is engaged with the fourth protrusion 362. In this way, the second damping element 332 can absorb the vibrations of the first mounting member 351 and the pressing element 36 in the axial, radial and circumferential directions, thereby improving the damping effect.

[0097] In one implementation, such as Figure 2 , Figure 5 , Figure 6 and Figure 8 As shown, the drive motor 3 also includes a transmission head 32, which is connected to the drive shaft 3122 of the motor body 31. The transmission head 32 is connected to the roller brush body 2 via a second vibration damping structure 34. The rotational power output by the motor body 31 is transmitted to the roller brush body 2 sequentially via the transmission head 32 and the second vibration damping structure 34, thereby causing the motor body 31 to drive the roller brush body 2 to rotate and clean the surface to be cleaned. During the transmission process, the second vibration damping structure 34 is used to absorb the vibration transmitted from the transmission head 32 to the roller brush body 2, thereby reducing the noise generated by the vibration of the roller brush body 2. In this solution, the vibration damping element in the vibration isolator constitutes the first vibration damping structure 33, and the second vibration damping structure 34 is provided between the transmission head 32 and the roller brush body 2. The multi-faceted vibration damping cooperation can significantly reduce the vibration sensation and improve the noise reduction effect.

[0098] Furthermore, such as Figure 2 , Figure 5 , Figure 6 and Figure 8 As shown, the transmission head 32 includes multiple transmission protrusions 321, and the inner wall of the roller brush body 2 is provided with multiple connecting grooves 211. The transmission protrusions 321 and the connecting grooves 211 are engaged in a one-to-one transmission. The transmission principle between the transmission protrusions 321 and the connecting grooves 211 can be referred to the transmission principle between the transmission head and the roller brush body in any existing floor brush device, and will not be elaborated here. Figure 2 and Figure 11As shown, the second vibration damping structure 34 includes multiple third vibration damping elements 341. Each third vibration damping element 341 is connected to a transmission protrusion 321. The third vibration damping element 341 is used to block the transmission protrusion 321 from the connecting groove 211, thereby at least absorbing the vibration transmitted from the circumferential surface of the transmission protrusion 321 to the connecting groove 211. The third vibration damping element 341 can be a ring-shaped structure, fitted onto the circumferential surface of the transmission protrusion 321. Alternatively, the third vibration damping element 341 can be an end cap structure, fitted onto the end of the transmission protrusion 321, capable of blocking the circumferential surface of the transmission protrusion 321 and one end of its axial end surface from the connecting groove 211. It should be understood that, as Figure 13 As shown, since the third damping element 341 is fitted onto the corresponding transmission protrusion 321, the shape of the transmission head 32 does not change much after the third damping element 341 is installed.

[0099] Furthermore, such as Figure 9 , Figure 11 and Figure 12 As shown, all the transmission protrusions 321 are spaced apart along the rotation direction of the transmission head 32. The second damping structure 34 also includes a fourth damping element 342, which includes multiple enclosing cavities 3421. The fourth damping element 342 is sleeved on the outer periphery of the transmission head 32. The enclosing cavities 3421, transmission protrusions 321, and third damping elements 341 are arranged in a one-to-one correspondence. The transmission protrusions 321 and the corresponding third damping elements 341 are enclosed by the corresponding enclosing cavities 3421. In this way, the vibration of the transmission head 32 is absorbed sequentially by the third damping element 341 and the fourth damping element 342. After two-stage absorption, the vibration transmitted from the transmission head 32 to the connecting groove 211 can be significantly reduced. Of course, as Figure 1 As shown, the second damping structure 34 may include only the third damping element 341 or the fourth damping element 342, such as... Figure 11 As shown, it can also include both the third damping element 341 and the fourth damping element 342.

[0100] Figure 13 and Figure 14 The diagram shows the front and back outer contours of the transmission head 32 in a specific embodiment. The second damping structure 341 in this application can be applied to a transmission head 32 of any shape.

[0101] In one implementation, such as Figure 1 and Figure 2 As shown, the transmission head 32 is mounted on the motor housing 311 by a second fastener 372 (such as a screw).

[0102] In one implementation, such as Figure 9As shown, the motor body 31 includes a motor housing 311 and a motor power component 312. The motor power component 312 is located inside the motor housing 311 and is used to output rotational power. A third vibration damping structure 313 is provided between the motor power component 312 and the motor housing 311. The third vibration damping structure 313 is used to absorb the vibration transmitted from the motor power component 312 to the motor housing 311, thereby reducing the vibration amplitude generated by the motor body 31. In this solution, the structure of the drive motor 3 of the floor brush device 100 is improved. By configuring the first vibration damping structure 33, the second vibration damping structure 34, and the third vibration damping structure 313, the vibration transmitted from the motor body 31 to the floor brush body 1, the vibration transmitted from the transmission head 32 to the roller brush body 2, and the vibration transmitted from the motor power component 312 to the motor housing 311 are absorbed respectively. This reduces the vibration of the floor brush body 1, the roller brush body 2, and the motor body 31. The multi-faceted vibration damping works together to significantly reduce vibration and improve noise reduction.

[0103] It should be understood that the motor power component 312 typically includes a stator and a rotor (not shown in the figure) that cooperate with each other, with the rotor inserted through the stator, and the rotor forming the drive shaft 3122 of the drive motor 3.

[0104] Furthermore, such as Figure 9 As shown, the motor power component 312 is provided with an abutment surface 3121, and the third vibration damping structure 313 is located on the side of the abutment surface 3121 away from the first end 3114. The abutment surface 3121 and the motor housing 311 clamp the third vibration damping structure 313 towards each other in the axial direction of the drive shaft 3122. The third vibration damping structure 313 is used to absorb the vibration transmitted from the motor power component 312 to the motor housing 311 in the direction toward the transmission head 32, thereby reducing the vibration transmitted from the motor body 31 to the transmission head 32, and ultimately reducing the vibration generated by the roller brush body 2.

[0105] Furthermore, such as Figure 9 As shown, the drive motor 3 also includes a third fastener 373, which passes through the motor housing 311 and locks the third vibration damping structure 313 onto the motor housing 311, so that the third vibration damping structure 313 and the motor housing 311 are tightly fitted, and the third vibration damping structure 313 can provide vibration damping for the motor housing 311.

[0106] Furthermore, such as Figure 8 and Figure 9As shown, the motor housing 311 includes a detachably connected first housing 3112 and a second housing 3113. The second housing 3113 is located on the side of the first housing 3112 away from the vibration damper 30. The abutment surface 3121 and the inner wall of the second housing 3113 together clamp the third vibration damping structure 313. This design sets the motor housing 311 as a split structure. In this way, the third vibration damping structure 313 can be placed in the second housing 3113 and locked with the third fastener 373 first, then the motor power component 312 can be assembled with the second housing 3113, and finally the first housing 3112 can be installed, reducing the assembly difficulty.

[0107] Furthermore, such as Figure 9 As shown, the third vibration damping structure 313 is annular. The annular hollow area of ​​the third vibration damping structure 313 is used for the drive shaft 3122 of the power unit 312 of the motor to pass through. The annular part of the third vibration damping structure 313 can increase the contact area between the contact surface 3121 and the third vibration damping structure 313, and can also increase the contact area between the third vibration damping structure 313 and the motor housing 311, thereby improving the vibration damping effect.

[0108] It should be understood that the above embodiments are exemplary and are not intended to encompass all possible implementations included in the claims. Various modifications and changes can be made to the above embodiments without departing from the scope of this disclosure. Similarly, the various technical features of the above embodiments can be arbitrarily combined to form other embodiments of this utility model that may not be explicitly described. Therefore, the above embodiments only illustrate several implementations of this utility model and do not limit the scope of protection of this utility model patent.

Claims

1. A floor brush device, characterized in that, The floor brush device (100) includes: The main body of the floor brush (1) is provided with a first mounting structure (11); A drive motor (3) includes a motor body (31) and a vibration damper (30). The motor body (31) has a drive shaft (3122). The motor body (31) has a first end (3114) and a second end (3115). The first end (3114) and the second end (3115) are spaced apart along the axial direction of the drive shaft (3122). The first end (3114) is mounted on the first mounting structure (11) through the vibration damper (30). The vibration damper (30) includes at least one mounting member and at least one vibration damping element. The at least one mounting member is used to connect the first end (3114) to the first mounting structure (11). The at least one vibration damping element can be installed between the first end (3114) and any one mounting member, or at least one vibration damping element can be installed between the first mounting structure (11) and any one mounting member.

2. The floor brush device according to claim 1, characterized in that, The vibration damper (30) includes a mounting member and a damping element. The first end (3114) is mounted to the first mounting structure (11) via the mounting member. The damping element is located between the first end (3114) and the mounting member, or between the mounting member and the first mounting structure (11). The vibration damper (30) includes a mounting member and two damping elements; one damping element is located between the first end (3114) and the mounting member, and the other damping element is located between the mounting member and the first mounting structure (11); or The vibration damper (30) includes two mounting members and one damping element; wherein the two mounting members are connected to each other, one mounting member is connected to the first end (3114), and the other mounting member is connected to the first mounting structure (11); the damping element is located between the first end (3114) and the mounting member connected thereto, or the damping element is located between the first mounting structure (11) and the mounting member connected thereto, or the damping element is located between the two mounting members; or The vibration damper (30) includes two mounting members and two damping elements; wherein the two mounting members are connected to each other, one mounting member is connected to the first end (3114), the other mounting member is connected to the first mounting structure (11), one damping element is located between the first end (3114) and the mounting member connected thereto, and the other damping element is located between the first mounting structure (11) and the mounting member connected thereto; or, one damping element is located between the first end (3114) and the mounting member connected thereto, and the other damping element is located between the two mounting members; or, one damping element is located between the first mounting structure (11) and the mounting member connected thereto, and the other damping element is located between the two mounting members.

3. The floor brush device according to claim 1, characterized in that, The shock absorber (30) includes a first mounting member (351), which includes an annular mounting portion (3511) and a first mounting post (3512), which is used to mount to the first mounting structure (11). The vibration damper (30) includes a first vibration damping element (331) and a second vibration damping element (332), wherein the first vibration damping element (331) is located between the first end (3144) and the first mounting member (351); The second damping element (332) is sleeved on the first mounting post (3512), and the second damping element (332) and the first damping element (331) clamp the annular mounting part (3511) facing each other in the axial direction of the drive shaft (3122).

4. The floor brush device according to claim 3, characterized in that, The drive motor (3) also includes a pressing element (36), which is sleeved on the outer periphery of the first mounting post (3512). The pressing element (36) and the annular mounting part (3511) clamp the second damping element (332) in opposite directions in the axial direction of the drive shaft (3122).

5. The floor brush device according to claim 4, characterized in that, The vibration damper (30) further includes a second mounting member (352), the first end (3114) is mounted on the first mounting member (351) via the second mounting member (352), the first mounting member (351) and the second mounting member (352) clamp the first vibration damping element (331) facing each other in the axial direction of the drive shaft (3122); at least one of the first mounting member (351) and the second mounting member (352) is engaged with the first vibration damping element (331); at least one of the first mounting member (351) and the pressing element (36) is engaged with the second vibration damping element (332).

6. The floor brush device according to any one of claims 1-5, characterized in that, The floor brush device (100) also includes a roller brush body (2), and the drive motor (3) is at least partially inserted into the roller brush body (2); The drive motor (3) also includes a transmission head (32), which is connected to the drive shaft (3122) of the motor body (31); the transmission head (32) is connected to the roller brush body (2) through the second damping structure (34) so ​​that the motor body (31) drives the roller brush body (2) to rotate.

7. The floor brush device according to claim 6, characterized in that, The transmission head (32) includes multiple transmission protrusions (321), and the inner wall of the roller brush body (2) is provided with a connecting groove (211). The transmission protrusions (321) and the connecting groove (211) are in transmission cooperation. The second vibration damping structure (34) includes a plurality of third vibration damping elements (341), which are sleeved on the transmission protrusion (321) to block the transmission protrusion (321) from the connecting groove (211).

8. The floor brush device according to claim 7, characterized in that, All of the transmission protrusions (321) are spaced apart along the rotation direction of the drive shaft (3122). The second vibration damping structure (34) further includes a fourth vibration damping element (342), which includes multiple enclosing cavities (3421). The fourth vibration damping element (342) is sleeved on the outer periphery of the transmission head (32). The enclosing cavity (3421), the transmission protrusion (321), and the third vibration damping element (341) are arranged in a one-to-one correspondence. The transmission protrusion (321) and the corresponding third vibration damping element (341) are enclosed by the corresponding enclosing cavity (3421).

9. The floor brush device according to any one of claims 1-5, characterized in that, The motor body (31) includes a motor housing (311) and a motor power component (312). The motor power component (312) is located inside the motor housing (311), and a third vibration damping structure (313) is provided between the motor power component (312) and the motor housing (311).

10. The floor brush device according to claim 9, characterized in that, The motor housing (311) includes a first housing (3112) and a second housing (3113) that are detachably connected. The second housing (3113) is located on the side of the first housing (3112) away from the vibration damper (30). The motor power component (312) is provided with an abutment surface (3121). The abutment surface (3121) and the inner wall of the second housing (3113) together clamp the third vibration damping structure (313).

11. A surface cleaning device, characterized in that, The surface cleaning equipment includes a floor brush device as described in any one of claims 1-10.

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