Rolling brush assembly and ground cleaning equipment

Abstract

The invention relates to the technical field of cleaning equipment, in particular to a rolling brush assembly and ground cleaning equipment, and aims to solve the problems that an existing bearing is generally positioned or not positioned in one direction, and the bearing is easy to move. In order to achieve the purpose, the rolling brush assembly comprises a connecting plate, a bearing, a bearing fixing piece, a roller connecting piece, a clamping piece and a roller. A fixed cylinder is formed on the connecting plate; the bearing fixing piece is arranged on the fixing cylinder, and one end of the bearing fixing piece and the fixing cylinder define a first clamping groove; the bearing sleeves the fixed cylinder, and the inner ring of the bearing is located in the first clamping groove; the roller connecting piece sleeves the outer side of the bearing; the clamping piece is connected with the roller connecting piece, a second clamping groove is defined by one end of the clamping piece and the roller connecting piece, and the outer ring of the bearing is located in the second clamping groove. And through the first clamping groove and the second clamping groove, the whole bearing is limited, and the bearing is prevented from moving.

Description

Technical Field

[0001] This invention relates to the field of cleaning equipment technology, specifically providing a roller brush assembly and a floor cleaning device. Background Technology

[0002] The cleaning principle of a household handheld floor scrubber is that a motor drives components such as a roller brush and a drum to rotate at high speed, while a nozzle sprays clean water onto the roller brush. This allows the roller brush to repeatedly rotate and scrub, removing stubborn stains from the floor. Compared to traditional manual mopping, it has advantages such as faster cleaning speed, better cleaning effect, and applicability to a variety of stains.

[0003] The roller brush assembly of a floor scrubber generally includes a base connection part connected to the base and a roller brush. A bearing is provided between the roller brush and the base connection part so that the roller brush and the base connection part can rotate.

[0004] However, existing bearings are fixed by interference fit, and generally there is positioning in only one direction or no positioning at all, which makes the bearing prone to movement.

[0005] Accordingly, a new technical solution is needed in this field to solve the above problems. Summary of the Invention

[0006] The present invention aims to solve the above-mentioned technical problems, and to address the issue that existing bearings generally have positioning in only one direction or no positioning at all, making the bearings prone to movement.

[0007] This invention provides a roller brush assembly, including a connecting plate, a bearing, a bearing fixing component, a roller connector, a snap-fit ​​component, and a roller;

[0008] A fixed cylinder is formed on the connecting plate;

[0009] The bearing fixing member is disposed on the fixing cylinder, and one end of the bearing fixing member and the fixing cylinder form a first snap-fit ​​groove;

[0010] The bearing is sleeved on the fixed cylinder, and the inner ring of the bearing is located in the first snap-fit ​​groove;

[0011] The roller connector is sleeved on the outside of the bearing;

[0012] The snap-fit ​​component is connected to the roller connector, and one end of the snap-fit ​​component and the roller connector form a second snap-fit ​​groove, with the outer ring of the bearing located within the second snap-fit ​​groove.

[0013] With the above technical solution, the inner ring of the bearing is restricted on both sides by the fixed cylinder and the bearing fixing component, so that the inner ring of the bearing cannot move along the axial direction of the fixed cylinder. The position of the outer ring of the bearing is restricted by the roller connector and the snap-fit ​​component, so that the outer ring of the bearing cannot move along the length direction of the roller connector. This achieves the overall positioning of the bearing, avoids bearing movement, and improves the operational stability of the roller brush assembly.

[0014] In a specific embodiment of the roller brush assembly, the outer side of the fixed cylinder protrudes outward to form an annular convex edge, and the annular convex edge, the outer side wall of the fixed cylinder, and one end of the bearing fixing member surround to form the first snap-fit ​​groove.

[0015] In a specific embodiment of the roller brush assembly, the bearing fixing member is cylindrical and is sleeved on the fixing cylinder.

[0016] In a specific embodiment of the roller brush assembly, a shoulder is provided on the outer side of the fixed cylinder, and one end of the bearing fixing member abuts against the shoulder.

[0017] In a specific embodiment of the roller brush assembly, one of the fixed cylinder and the bearing fixing member is provided with a first snap-fit ​​hole and the other is provided with a first snap-fit ​​protrusion, and the first snap-fit ​​protrusion snaps into the first snap-fit ​​hole.

[0018] When the above technical solution is adopted, the connection between the fixed cylinder and the roller connector is made more convenient by snap-fitting.

[0019] In a specific embodiment of the roller brush assembly, the fixed cylinder is provided with the first snap-fit ​​hole and a guide groove communicating with the first snap-fit ​​hole; and / or

[0020] A first elastic plate is formed on the bearing fixing member, and the first snap-fit ​​protrusion is connected to the first elastic plate; and / or

[0021] There are multiple first snap-fit ​​protrusions and multiple first snap-fit ​​holes, and the first snap-fit ​​holes and the first snap-fit ​​protrusions are arranged in a one-to-one correspondence.

[0022] When the above technical solution is adopted, the elasticity of the first elastic plate enables the first snap-fit ​​protrusion to snap into the first snap-fit ​​hole. Multiple first snap-fit ​​protrusions and second snap-fit ​​holes ensure a more stable connection between the fixed cylinder and the bearing fixing component.

[0023] In a specific embodiment of the roller brush assembly, one end of the roller connector retracts inward to form a retaining ring, and the retaining ring, the inner sidewall of the roller connector, and one end of the snap-fit ​​member surround to form the second snap-fit ​​groove.

[0024] In a specific embodiment of the roller brush assembly, the snap-fit ​​component is inserted into the roller connector. One of the snap-fit ​​component and the roller connector has a second snap-fit ​​hole, and the other has a second snap-fit ​​protrusion. The second snap-fit ​​protrusion snaps into the second snap-fit ​​hole.

[0025] In a specific embodiment of the roller brush assembly, the roller connector is provided with the second snap-fit ​​hole; and / or

[0026] A second elastic plate is formed on the snap-fit ​​component, and the second snap-fit ​​protrusion is connected to the second elastic plate; and / or

[0027] There are multiple second snap-fit ​​protrusions and multiple second snap-fit ​​holes, and the second snap-fit ​​holes and the second snap-fit ​​protrusions are arranged in a one-to-one correspondence.

[0028] When the above technical solution is adopted, the elasticity of the second elastic plate enables the second snap-fit ​​protrusion to snap into the second snap-fit ​​hole. Multiple second snap-fit ​​protrusions and second snap-fit ​​holes ensure a more stable connection between the roller connector and the snap-fit ​​component.

[0029] This application also discloses a floor cleaning device, including a base and the aforementioned roller brush assembly;

[0030] The base is provided with a placement part for placing the roller brush assembly, the roller brush assembly is disposed in the placement part and connected to the base.

[0031] With the above technical solution, the inner ring of the bearing is restricted on both sides by the fixed cylinder and the bearing fixing component, so that the inner ring of the bearing cannot move along the axial direction of the fixed cylinder. The position of the outer ring of the bearing is restricted by the roller connector and the snap-fit ​​component, so that the outer ring of the bearing cannot move along the length direction of the roller connector. This achieves the overall positioning of the bearing, avoids bearing movement, and makes the operation of the ground cleaning equipment more stable. Attached Figure Description

[0032] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:

[0033] Figure 1 This is a diagram showing the overall external structure of the roller brush assembly;

[0034] Figure 2 This is an overall cross-sectional view of the roller brush assembly;

[0035] Figure 3 This is a cross-sectional view of the roller brush assembly after the rollers have been removed;

[0036] Figure 4 This is an assembly diagram of the connecting plate in the roller brush assembly;

[0037] Figure 5 This is a structural diagram of the roller connector in the roller brush assembly;

[0038] Figure 6 This is a structural diagram of the snap-fit ​​component in the roller brush assembly;

[0039] Figure 7 This is a structural diagram of the bearing fixing component in the roller brush assembly.

[0040] List of reference numerals in the attached drawings: 11-Connecting plate; 12-Fixing cylinder; 121-First snap-fit ​​hole; 122-Guide groove; 123-Annular protrusion; 124-Shoulder; 2-Roller; 22-Reinforcing rib; 3-Bearing fastener; 31-First elastic plate; 32-First snap-fit ​​protrusion; 4-Bearing; 5-Snap-fit ​​piece; 51-Second elastic plate; 52-Second snap-fit ​​protrusion; 6-Roller connector; 63-Outward groove; 64-Second snap-fit ​​hole. Detailed Implementation

[0041] Preferred embodiments of this application are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art can make adjustments as needed to adapt to specific applications. For example, although the second elastic plate is described in combination with three in the specification, this application can obviously employ other numbers of second elastic plates, such as one, two, four, or other quantities.

[0042] It should be noted that, in the description of this application, unless otherwise explicitly specified and limited, the terms "set," "connect," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or other type of connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Additionally, in the description of this application, "a plurality of" refers to at least two. It should be understood that the terms "upper," "inner," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention.

[0043] The preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which: Figure 1 This is a diagram showing the overall external structure of the roller brush assembly; Figure 2 This is an overall cross-sectional view of the roller brush assembly; Figure 3This is a cross-sectional view of the roller brush assembly after the rollers have been removed; Figure 4 This is an assembly diagram of the connecting plate in the roller brush assembly; Figure 5 This is a structural diagram of the roller connector in the roller brush assembly; Figure 6 This is a structural diagram of the snap-fit ​​component in the roller brush assembly; Figure 7 This is a structural diagram of the bearing fixing component in the roller brush assembly.

[0044] like Figure 1-7 As shown, to address the problem that existing roller brush assemblies typically have bearings positioned in only one direction or none at all, leading to easy bearing movement, this invention provides a roller brush assembly including a connecting plate 11, a bearing 4, a bearing fixing member 3, a roller connector 6, a snap-fit ​​member 5, and a roller 2. A fixing cylinder 12 is formed on the connecting plate 11, and the bearing fixing member 3 is disposed on the fixing cylinder 12, with one end of the bearing fixing member 3 forming a first snap-fit ​​groove with the fixing cylinder 12. The bearing 4 is sleeved on the fixing cylinder 12, with its inner ring located within the first snap-fit ​​groove. The roller connector 6 is sleeved on the outer side of the bearing 4. The snap-fit ​​member 5 connects to the roller connector 6, with one end of the snap-fit ​​member 5 forming a second snap-fit ​​groove with the roller connector 6, and the outer ring of the bearing 4 located within the second snap-fit ​​groove. Thus, the inner ring of bearing 4 is restricted on both sides by the fixed cylinder 12 and the bearing fixing part 3, so that the inner ring of bearing 4 cannot move along the axial direction of the fixed cylinder 12. The position of the outer ring of bearing 4 is restricted by the roller connector 6 and the snap-fit ​​part 5, so that the outer ring of bearing 4 cannot move along the length direction of the roller connector 6. This achieves the overall positioning of bearing 4, prevents bearing 4 from moving, and improves the operating stability of the roller brush assembly.

[0045] like Figure 1-7 As shown, in a preferred embodiment, the roller brush assembly includes a connecting plate 11, a bearing 4, a bearing fixing member 3, a roller connector 6, a roller 2, and a snap-fit ​​member 5.

[0046] A fixed cylinder 12 is formed on the connecting plate 11, and the bearing 4 is sleeved on the outside of the fixed cylinder 12. A bearing fixing member 3 is sleeved on the fixed cylinder 12, and one end of the bearing fixing member 3 and the fixed cylinder 12 form a first locking groove, with the inner ring of the bearing 4 located within the first locking groove. A roller connecting member 6 is sleeved on the outside of the bearing 4, and the outside of the roller connecting member 6 is used to connect the roller 2. A locking member 5 is inserted into the inside of the roller connecting member 6, and one end of the locking member 5 and the roller connecting member 6 form a second locking groove, with the outer ring of the bearing 4 located within the second locking groove. This prevents the bearing 4 from sliding along the length of the roller connecting member 6.

[0047] It should be noted that bearing 4 is preferably a deep groove ball bearing, but it can also be a cylindrical roller bearing, tapered ball bearing, self-aligning ball bearing, self-aligning roller bearing, or other bearings that can be used in this position.

[0048] like Figure 3 and 4 As shown, in a preferred embodiment, one side of the connecting plate 11 ( Figure 4 A fixed cylinder 12 is formed on one side of the connecting plate 11 (shown in the diagram). The fixed cylinder 12 is provided with an annular flange 123 and a shoulder 124. A bearing 4 is sleeved between the shoulder 124 and the annular flange 123. The inner ring of the bearing 4 is connected to the fixed cylinder 12 by an interference fit, and the inner ring of the bearing 4 abuts against the annular flange 123. In this way, the fixed position of the bearing 4 is determined by the annular flange 123, and at the same time, it abuts against one side of the bearing 4 to prevent the bearing 4 from moving on the fixed cylinder 12 in the direction of pressing against the annular flange 123. At the same time, two first snap-fit ​​holes 121 are provided on the fixed cylinder 12. The two first snap-fit ​​holes 121 are arranged opposite each other and are arranged along the length direction of the fixed cylinder 12. A guide groove 122 is provided on the side of the first snap-fit ​​hole 121 away from the annular flange 123, and a guide slope is provided on one end of the guide groove 122.

[0049] It should be noted that the configuration of the connecting plate 11 is not unique, and those skilled in the art can choose the specific structure of the connecting plate 11 based on the specific application scenario. For example, the fixed cylinder 12 and the connecting plate 11 can be separately configured and connected by threaded connection or snap-fit. For another example, the annular flange 123 can be replaced by multiple protrusions arranged annularly around the fixed cylinder 12 in the circumferential direction, which can prevent the inner ring of the bearing 4 from moving on the fixed cylinder 12. For another example, the shoulder 124 can be omitted. For another example, the bearing 4 is sleeved on the fixed cylinder 12, and an annular retaining ring is threadedly connected to the fixed cylinder 12, thereby restricting the movement of the bearing 4 along the length direction of the fixed cylinder 12. For another example, the number of first snap-fit ​​holes 121 can be one, three, or more. For another example, the first snap-fit ​​holes 121 can be spirally arranged in the length direction of the fixed cylinder 12 or arranged in the radial direction of the fixed cylinder 12. For another example, the guide groove 122 can be omitted. For another example, the two first snap-fit ​​holes 121 can also not be arranged in opposite positions. For example, the guide slope may not need to be provided at one end of the guide groove 122.

[0050] like Figure 3 and 7As shown, in a preferred embodiment, the bearing fixing member 3 is cylindrical and is sleeved on the fixing cylinder 12. The bearing fixing member 3 has two "U"-shaped holes along its length, each containing a first elastic plate 31, which are arranged opposite each other. Each first elastic plate 31 has a first engaging protrusion 32 facing inwards. The bearing fixing member 3 is sleeved on the fixing cylinder 12, and one end of the bearing fixing member 3 abuts against the inner ring of the bearing 4. The outer diameter of the bearing fixing member 3 is larger than the outer diameter of the shoulder 124, thus forming a first engaging groove by the annular flange 123, the outer wall of the fixing cylinder 12, and one end of the bearing fixing member 3. The first engaging protrusion 32 is the same size as the first engaging hole 121 and can move along the guide groove 122, engaging within the first engaging hole 121 under the action of the first elastic plate 31. The inner ring of bearing 4 is located in the first locking groove between bearing retainer 3 and annular protrusion 123, preventing bearing 4 from moving along the length of fixed cylinder 12. Thus, the elasticity of the first elastic plate 31 allows the first locking protrusion 32 to be engaged into the first locking hole 121. The guide groove 122 makes installation of bearing retainer 3 more convenient. The two first locking protrusions 32 and the first locking hole 121 ensure a more stable connection between fixed cylinder 12 and bearing retainer 3.

[0051] It should be noted that the configuration of the bearing fixing component 3 is not unique, and those skilled in the art can choose the specific structure of the bearing fixing component 3 based on the specific application scenario. For example, the first snap-fit ​​protrusion 32 and the first snap-fit ​​hole 121 can be interchanged. A first elastic plate 31 can be provided on the fixing cylinder 12, the first snap-fit ​​protrusion 32 can be placed on the first elastic plate 31, and the first snap-fit ​​hole 121 can be placed on the bearing fixing component 3. Alternatively, the number of first elastic plates 31 and first snap-fit ​​holes 121 can be the same, and there can be one, three, or more. Another example is that the first elastic plate 31 is not provided, and the first snap-fit ​​protrusion 32 snaps into the first snap-fit ​​hole 121 through the elastic deformation between the bearing fixing component 3 and the fixing cylinder 12 during installation. Yet another example is that the volume of the first snap-fit ​​protrusion 32 is smaller than the volume of the first snap-fit ​​hole 121. Finally, the bearing fixing component 3 can be a nut, with threads provided on the fixing cylinder 12, using a nut and threaded connection to limit the inner ring of the bearing 4.

[0052] like Figure 3 and 5 As shown, in a preferred embodiment, the roller connector 6 is sleeved on the outside of the bearing 4, and one end of the roller connector 6 ( Figure 3 The left end of the middle roller connector 6 tapers inward to form a retaining ring, and one side of the outer ring of the bearing 4 ( Figure 3The left side of the bearing 4 abuts against the retaining ring. It should be noted that the configuration of the roller connector 6 is not unique; those skilled in the art can choose the specific structure of the roller connector 6 based on the specific application scenario. For example, the retaining ring can be connected to the roller connector 6 by a threaded connection or a snap-fit ​​method.

[0053] Three second snap-fit ​​holes 64 are provided on the inner side of the roller connector 6, and the three second snap-fit ​​holes 64 are evenly spaced along the circumferential direction of the roller connector 6. An outward groove 63 is provided on the outer side of the retaining ring of the roller connector 6, so that one end of the roller 2 can be inserted into the outward groove 63. At the same time, a sealing rubber is provided in the outward groove 63. When one end of the roller 2 is inserted into the outward groove 63, one end of the roller 2 presses against the sealing rubber, thereby preventing water from entering the roller 2 and causing corrosion of the internal parts of the roller 2.

[0054] It should be noted that the second snap-fit ​​hole 64 can also be opened at other positions of the roller connector 6, and the number of the second snap-fit ​​hole 64 can be one, two, four or more. The second snap-fit ​​hole 64 can be a through hole penetrating the roller connector 6, or it can be a groove opened on the inner side of the roller connector 6. The setting of the outward-facing groove 63 is not necessary. The outward-facing groove 63 can be omitted, and a retaining edge can be set on the outside of the retaining ring of the roller connector 6, with one end of the roller 2 pressing against the retaining edge.

[0055] like Figure 3 and 6 As shown, in a preferred embodiment, the snap-fit ​​member 5 is inserted into the inner side of the roller connector 6. The snap-fit ​​member 5 has a U-shaped hole along its length, and a second elastic plate 51 is formed within the U-shaped hole. There are three U-shaped holes, and correspondingly, three second elastic plates 51, evenly spaced along the circumferential direction of the snap-fit ​​member 5. Each second elastic plate 51 has a second snap-fit ​​protrusion 52, and each second snap-fit ​​protrusion 52 snaps into a second snap-fit ​​hole 64. After snap-fitting, the retaining ring, the inner wall of the roller connector 6, and one end of the snap-fit ​​member 5 form a second snap-fit ​​groove. The outer ring of the bearing 4 is located within the second snap-fit ​​groove, and one end of the snap-fit ​​member 5 ( Figure 6 The left end of the middle locking member 5 abuts against the outer ring of the bearing 4 to prevent displacement between the roller connector 6 and the bearing 4 along the length of the roller 2. Thus, the elasticity of the second elastic plate 51 allows the second locking protrusion 52 to be engaged into the second locking hole 64. The three second locking protrusions 52 and the second locking hole 64 ensure a more stable connection between the roller connector 6 and the locking member 5.

[0056] See Figure 1 and Figure 2 The roller 2 is equipped with a brush on its exterior, and the interior of the roller 2 has multiple reinforcing ribs 22 along its length. Meanwhile, one end of the roller 2 ( Figure 2 The outer diameter of the left end of the middle roller 2 is reduced so that one end of the roller 2 can be located within the outward turning groove 63. In this way, the setting of the reinforcing rib 22 makes the roller 2 stronger and prevents the roller 2 from bending.

[0057] It should be noted that the above-described configuration of roller 2 is not unique, and those skilled in the art can choose the specific structure of roller 2 based on the specific application scenario. For example, multiple annular reinforcing ribs can be provided along the length direction of roller 2. Of course, reinforcing ribs can be omitted. Furthermore, the outer side of one end of roller 2 may not be narrowed.

[0058] It should be noted that the configuration of the snap-fit ​​component 5 is not unique, and those skilled in the art can choose the specific structure of the snap-fit ​​component 5 based on the specific application scenario. For example, the second snap-fit ​​hole 64 and the second snap-fit ​​protrusion 52 can be interchanged, with the second snap-fit ​​hole 64 disposed on the snap-fit ​​component 5, the second elastic plate 51 disposed on the roller connector 6, and the second snap-fit ​​protrusion 52 disposed on the second elastic plate 51. Alternatively, the second elastic plate 51 can be omitted, and the second snap-fit ​​protrusion 52 can be fixed to the outer wall of the snap-fit ​​component 5. Furthermore, the second elastic plate 51 can be one, two, four, or other quantities, with the number of second elastic plates 51 being the same as the number of second snap-fit ​​holes 64. Correspondingly, the number of second snap-fit ​​protrusions 52 is the same as the number of second elastic plates 51.

[0059] This application also discloses a floor cleaning device, including a base and the aforementioned roller brush assembly. The base has a placement portion for holding the roller brush assembly, which is disposed within the placement portion and connected to the base. With the above technical solution, the inner ring of the bearing 4 is restricted on both sides by the fixing cylinder 12 and the bearing fixing member 3, preventing the inner ring of the bearing 4 from moving along the fixing cylinder 12. The position of the outer ring of the bearing 4 is restricted by the roller connector 6 and the snap-fit ​​member 5, preventing the outer ring of the bearing 4 from moving along the length direction of the roller connector 6. This achieves overall positioning of the bearing 4, preventing it from shifting.

[0060] The following is a reference to the appendix. Figure 1-7 The possible installation methods of the bearing in this embodiment will be introduced.

[0061] First, connect the bearing 4 to the roller connector 6, then connect the bearing 4 to the fixed cylinder 12, connect the bearing fixing part 3 to the fixed cylinder 12 to restrict the movement of the inner ring of the bearing 4, and connect the snap-fit ​​part 5 to the roller connector 6 to restrict the movement of the outer ring of the bearing 4.

[0062] The following describes the specific installation steps for bearing 4.

[0063] First, bearing 4 is placed inside roller connector 6 with an interference fit, and one side of bearing 4 ( Figure 3The left side of the bearing 4 abuts against the retaining ring on the roller connector 6.

[0064] Then, the bearing 4, which is connected to the roller connector 6, is fitted onto the fixed cylinder 12 with an interference fit, and one side of the inner ring of the bearing 4 ( Figure 3 The left side of the bearing 4 abuts against the annular flange 123.

[0065] Next, align the first snap-fit ​​protrusion 32 on the bearing retainer 3 with the guide slope on the fixing cylinder 12, and move the bearing retainer 3 towards the connecting plate 11. The first snap-fit ​​protrusion 32 moves along the guide groove 122, at which time the first elastic plate 31 stores elastic potential energy. Until the first snap-fit ​​protrusion 32 is aligned with the first snap-fit ​​hole 121, the first elastic plate 31 releases its elastic potential energy, causing the first snap-fit ​​protrusion 32 to snap into the first snap-fit ​​hole 121. At this time, one end of the bearing retainer 3 is connected to the other side of the inner ring of the bearing 4 ( Figure 3 The right side of the bearing 4 abuts against the bearing to limit the inner ring of the bearing 4.

[0066] Next, align the second snap-fit ​​protrusion 52 on the snap-fit ​​member 5 with the second snap-fit ​​hole 64 on the roller connector 6, and move the snap-fit ​​member 5 towards the connecting plate 11. At this time, the second elastic plate 51 stores elastic potential energy. Until the second snap-fit ​​protrusion 52 is aligned with the second snap-fit ​​hole 64, the second elastic plate 51 releases its elastic potential energy, causing the second snap-fit ​​protrusion 52 to snap into the second snap-fit ​​hole 64. At this point, one end of the snap-fit ​​member 5 is connected to the other side of the outer ring of the bearing 4. Figure 3 The right side of the bearing 4 is abutted to limit the outer ring of the bearing 4.

[0067] Those skilled in the art will understand that although some embodiments herein include certain features included in other embodiments but not others, combinations of features from different embodiments are intended to be within the scope of this application and form different embodiments. For example, any of the claimed embodiments in the claims of this application can be used in any combination.

[0068] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after such changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A roller brush assembly, characterized in that, Includes connecting plates, bearings, bearing fasteners, roller connectors, snap-fit ​​components, and rollers; A fixed cylinder is formed on the connecting plate; The bearing fixing member is disposed on the fixing cylinder, and one end of the bearing fixing member and the fixing cylinder form a first snap-fit ​​groove; The bearing is sleeved on the fixed cylinder, and the inner ring of the bearing is located in the first snap-fit ​​groove; The roller connector is sleeved on the outside of the bearing; The snap-fit ​​component is connected to the roller connector, and one end of the snap-fit ​​component and the roller connector form a second snap-fit ​​groove, with the outer ring of the bearing located within the second snap-fit ​​groove.

2. The roller brush assembly according to claim 1, characterized in that, The outer side of the fixed cylinder protrudes outward to form an annular convex edge, and the annular convex edge, the outer side wall of the fixed cylinder, and one end of the bearing fixing member surround to form the first snap-fit ​​groove.

3. The roller brush assembly according to claim 2, characterized in that, The bearing fixing component is cylindrical and is sleeved on the fixing cylinder.

4. The roller brush assembly according to claim 3, characterized in that, The outer side of the fixed cylinder is provided with a shoulder, and one end of the bearing fixing member abuts against the shoulder.

5. The roller brush assembly according to claim 3, characterized in that, One of the fixed cylinder and the bearing fixing member is provided with a first snap-fit ​​hole and the other is provided with a first snap-fit ​​protrusion, and the first snap-fit ​​protrusion snaps into the first snap-fit ​​hole.

6. The roller brush assembly according to claim 5, characterized in that, The fixed cylinder is provided with the first snap-fit ​​hole and a guide groove communicating with the first snap-fit ​​hole; and / or A first elastic plate is formed on the bearing fixing member, and the first snap-fit ​​protrusion is connected to the first elastic plate; and / or There are multiple first snap-fit ​​protrusions and multiple first snap-fit ​​holes, and the first snap-fit ​​holes and the first snap-fit ​​protrusions are arranged in a one-to-one correspondence.

7. The roller brush assembly according to claim 1, characterized in that, One end of the roller connector retracts inward to form a retaining ring, and the retaining ring, the inner sidewall of the roller connector, and one end of the snap-fit ​​member surround to form the second snap-fit ​​groove.

8. The roller brush assembly according to claim 7, characterized in that, The snap-fit ​​component is inserted into the roller connector. One of the snap-fit ​​component and the roller connector has a second snap-fit ​​hole and the other has a second snap-fit ​​protrusion. The second snap-fit ​​protrusion snaps into the second snap-fit ​​hole.

9. The roller brush assembly according to claim 8, characterized in that, The roller connector is provided with the second snap-fit ​​hole; and / or A second elastic plate is formed on the snap-fit ​​component, and the second snap-fit ​​protrusion is connected to the second elastic plate; and / or There are multiple second snap-fit ​​protrusions and multiple second snap-fit ​​holes, and the second snap-fit ​​holes and the second snap-fit ​​protrusions are arranged in a one-to-one correspondence.

10. A floor cleaning device, characterized in that, Includes a base and the roller brush assembly as described in any one of claims 1-9; The base is provided with a placement part for placing the roller brush assembly, the roller brush assembly is disposed in the placement part and connected to the base.

Images