Floor brush rotating structure and dust collector thereof

Abstract

The utility model relates to a floor brush rotating structure, and relates to the technical field of household appliances. The floor brush comprises a shell, a connecting pipe and a connecting seat, a hose is fixed in the connecting pipe and the connecting seat and communicated with the connecting pipe and the connecting seat, the connecting pipe is parallel to the ground, one end of the connecting pipe is rotatably connected with the floor brush, and the other end of the connecting pipe is rotatably connected with the floor brush. The connecting pipe circumferentially rotates between two dead points by taking a central shaft of the connecting pipe as a rotating shaft, circular connecting parts are arranged on two sides of the other end of the connecting pipe, circular sleeving parts are arranged on two sides of one end of the connecting seat, the sleeving parts are arranged on the outer sides of the connecting parts in a sleeving manner, and the sleeving parts are rotationally connected with the connecting parts. And the connecting seat and the connecting pipe rotate by taking a rotating shaft of the sleeving part and the connecting part as a rotating shaft so as to adjust the inclined angle of the connecting seat relative to the ground. The dust collector has the effect that the machine body of the dust collector can be adjusted in multiple angles and multiple directions.

Description

Technical Field

[0001] This application relates to the field of home appliance technology, and in particular to a floor brush rotating structure and a vacuum cleaner thereof. Background Technology

[0002] In the market for household vacuum cleaners, a typical vacuum cleaner floor brush usually consists of a floor brush housing made up of a top cover and a bottom plate, a body connected to a dust cup and a handle, and a connector for connecting the floor brush housing and the body. When the top cover and the bottom plate are snapped together, they form a suction channel that is connected to the connector. The bottom plate has a suction port facing the ground, which can suck dust on the ground into the vacuum cleaner's dust cup through the suction channel.

[0003] In some existing vacuum cleaners, a flexible omnidirectional hose connects the floor brush housing and the connector. This hose allows the vacuum cleaner to adjust its tilt angle relative to the ground within a certain range, and also enables the vacuum cleaner to rotate circumferentially around the connector. However, with a fixed tilt angle, adjusting the vacuum cleaner's position relative to the floor brush housing to operate it from the side of the brush is difficult to achieve with the existing vacuum cleaner design. In other vacuum cleaners, the vacuum cleaner can adjust its tilt angle relative to the ground and rotate to operate from the side of the brush, but it cannot rotate circumferentially, making operation inconvenient. Utility Model Content

[0004] To address the limitation on the rotation direction of existing vacuum cleaners, this application provides a floor brush rotation structure and a vacuum cleaner thereof.

[0005] The floor brush rotating structure provided in this application adopts the following technical solution:

[0006] A floor brush rotating structure includes a housing, characterized in that it comprises a connecting pipe and a connecting seat, with a flexible hose fixed inside the connecting pipe and the connecting seat, the flexible hose connecting the connecting pipe and the connecting seat, the connecting pipe being arranged parallel to the ground, one end of the connecting pipe being rotatably connected to the floor brush, the connecting pipe rotating circumferentially between two dead points about its central axis, and circular connecting portions on both sides of the other end of the connecting pipe, and circular sleeve portions on both sides of one end of the connecting seat, the sleeve portions being sleeved on the outside of the connecting portions, the sleeve portions being rotatably connected to the connecting portions, and the connecting seat and the connecting pipe rotating about the rotation axes of the sleeve portions and the connecting portions to adjust the angle of inclination of the connecting seat relative to the ground.

[0007] By adopting the above technical solution, one end of the connecting tube is rotatably connected to the floor brush. The connecting tube, connecting seat, and vacuum cleaner body can rotate circumferentially about the central axis of the connecting tube. When the connecting seat and vacuum cleaner body are at a certain angle to the ground, the connecting tube can be rotated to make the connecting seat and vacuum cleaner body swing to the left and right sides of the floor brush. When the connecting seat and vacuum cleaner body are in a straight line with the connecting tube, the connecting seat and vacuum cleaner body can rotate circumferentially. The connecting tube and connecting seat are hinged through the sleeve and connecting parts, allowing the connecting seat and vacuum cleaner body to rotate while the connecting tube remains relatively fixed to adjust the tilt angle of the vacuum cleaner body relative to the ground.

[0008] Preferably, the connecting part has a central protruding retaining ring, the sleeve part has a through hole, the retaining ring passes through the through hole to connect the sleeve part and the connecting part, and a buckle passes through the rotation shaft of the sleeve part and the connecting part. The buckle passes from the outside of the sleeve part to the inside of the connecting part and fastens to the connecting part.

[0009] Preferably, the housing includes an interlocking upper cover and a bottom plate. The bottom plate includes a fixing seat. The connecting pipe is mounted on the fixing seat. One end of the connecting pipe has a circumferentially extending rotating protrusion. The fixing seat has a relief groove for the rotating protrusion to rotate. The rotating protrusion is provided with a limiting part in the circumferential direction. The upper cover has a limiting plate. The rotating protrusion stops rotating when the limiting part abuts against the limiting plate.

[0010] Preferably, the connecting seat includes an outer seat and an inner seat. One end of the outer seat has a mounting groove for the inner seat to be fitted into. The inner seat extends outward in the circumferential direction along the wall of the through hole to form a mounting ring. The outer seat has a mounting hole for the mounting ring to be fitted into.

[0011] Preferably, the buckle includes a through portion and an abutment portion. One end of the through portion has a snap-fit ​​protrusion. The connecting tube has a through groove for the buckle to pass through. The through portion passes through the mounting hole and the through hole in sequence and exits through the through groove, so that the snap-fit ​​protrusion abuts against the inner wall of the connecting tube, and the abutment portion abuts against the outer side of the outer seat.

[0012] Preferably, a first wiring port is provided between the inner seat and the outer seat, and the retaining ring has a notch to form a second wiring port. The first wiring port and the second wiring port are interconnected. The connecting tube includes an outer shell and an inner tube, and a cavity is formed between the outer shell and the inner tube. One end of the cavity near the connecting part is blocked. One end of the outer shell has a third wiring port facing the connecting part. The wiring passes through the first wiring port, the second wiring port and the third wiring port in sequence to the cavity.

[0013] Preferably, the upper cover has a latch and a locking groove, and the connecting seat has a latch. When the connecting seat is in an upright position perpendicular to the ground, the latch rolls along the surface of the latch into the locking groove, and the latch prevents the latch from exiting the locking groove.

[0014] Preferably, the side of the fixing seat facing the ground is fully open so that the side plate of the fixing seat directly abuts the ground.

[0015] Preferably, the housing also includes a suction pipe cover, which is fastened to the base plate to form a suction channel. One end of the suction pipe cover is connected to the connecting pipe, and a sealing ring is provided at the connection between the suction pipe cover and the connecting pipe.

[0016] Preferably, a vacuum cleaner includes a floor brush, a connector, and a body, wherein the connector is used to connect the floor brush and the body, and the connector includes the floor brush rotating structure as described above.

[0017] In summary, this application includes at least one of the following beneficial technical effects:

[0018] It can rotate in multiple angles and directions, allowing the vacuum cleaner to swing left and right to the sides of the floor brush, and also adjust the tilt angle between the vacuum cleaner body and the ground. The maximum adjustment angle allows the vacuum cleaner body to be laid flat, and when the vacuum cleaner body is laid flat, it can rotate circumferentially.

[0019] It is easy to operate and has a wide range of applications. When cleaning small spaces such as under the bed, the vacuum cleaner can be placed flat so that the body of the vacuum cleaner can be relatively close to the ground. With the fixed base fully open to the bottom, it reduces the situation where the floor brush is not able to work close to the ground because the base plate has a certain thickness.

[0020] The adjustable angle range is large, and the way the cable is routed on the side of the connecting tube allows the vacuum cleaner to swing left and right at a wide range. In addition, each rotation direction has a limit, which can prevent unlimited circumferential rotation from causing the cable to twist and become damaged. Attached Figure Description

[0021] Figure 1 This is an exploded schematic diagram of the rotating brush structure in an embodiment of this application.

[0022] Figure 2 This is a bottom view of the ground brush rotation structure in an embodiment of this application.

[0023] Figure 3 This is an exploded view of the connecting pipe and the base plate in an embodiment of this application.

[0024] Figure 4 This is a cross-sectional view of the ground brush rotation structure in an embodiment of this application.

[0025] Figure 5 This is another exploded view of the rotating brush structure in the embodiments of this application.

[0026] Figure 6 This is an exploded view of the buckle, connecting pipe, and connecting seat in the embodiments of this application.

[0027] Figure 7 This is an exploded view of the connector in an embodiment of this application.

[0028] Figure 8 This is an exploded view of the connecting pipe and connecting seat in the embodiments of this application.

[0029] Figure 9 This is a three-dimensional structural diagram of the connecting pipe in an embodiment of this application.

[0030] Figure 10 This is a schematic diagram of the connection between the inner seat and the connecting pipe in an embodiment of this application.

[0031] Figure 11 This is a schematic diagram of the connection between the inner seat and the connecting pipe from another perspective in an embodiment of this application.

[0032] Figure 12 This is a three-dimensional structural diagram of the floor brush rotation structure in the embodiments of this application.

[0033] Figure 13 This is an exploded view of the sealing ring, connecting pipe, and vacuum cleaner cap in the embodiments of this application.

[0034] Figure 14 This is a cross-sectional view of the sealing ring, connecting pipe, and vacuum cleaner cap in the embodiments of this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Shell; 11. Upper shell; 12. Base plate; 2. Connecting pipe; 3. Connecting seat; 4. Flexible hose; 121. Fixed seat; 111. Top cover; 21. Rotating convex ring; 122. Relief groove; 211. Limiting part; 112. Limiting plate; 212. Abutting protrusion; 22. Connecting part; 31. Sleeving part; 221. Snap ring; 311. Through hole; 5. Buckle; 32. Outer seat; 33. Inner seat; 321. Mounting groove; 331. Mounting ring; 322. Mounting hole; 332. 312. Protrusion; 313. First sleeve part; 314. Second sleeve part; 325. Sleeve groove; 36. First wiring port; 27. Second wiring port; 28. Outer shell; 29. ​​Inner tube; 20. Third wiring port; 222. Wiring port; 51. Through part; 52. Abutting part; 511. Snap-fit ​​protrusion; 23. Through groove; 14. Locking tongue; 15. Locking groove; 16. Vacuum pipe cover; 6. Sealing ring; 61. Limiting ring; 62. Enclosing part; 17. Connecting ring; 8. Connecting piece. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1-14 This application will be described in further detail.

[0037] This application discloses a floor brush rotating structure. The floor brush includes a housing 1, which includes an upper housing 11 and a bottom plate 12. The upper housing 11 and the bottom plate 12 are fastened together to form a chamber for mounting a roller brush and a vacuum cleaner. (Refer to...) Figure 1 and Figure 2 The floor brush rotating structure includes a connecting pipe 2 and a connecting seat 3. A flexible hose 4 is fixed inside the connecting pipe 2 and the connecting seat 3, connecting the connecting pipe 2 and the connecting seat 3. The flexible hose 4 allows the connecting pipe 2 and the connecting seat 3 to rotate freely. The connecting pipe 2 is parallel to the ground, with one end communicating with a chamber inside the housing 1. The connecting pipe 2 is rotatably connected to the housing 1 and rotates circumferentially between two dead points about its central axis. When the connecting pipe 2 reaches the dead point, it stops rotating. One end of the connecting seat 3 is hinged to the other end of the connecting pipe 2, and the other end of the connecting seat 3 is used to connect to the body of the vacuum cleaner. The connecting seat 3 can rotate about the hinge axis between the connecting pipe 2 and the connecting seat 3 to adjust the angle of inclination of the vacuum cleaner body relative to the ground.

[0038] Reference Figure 1 and Figure 3 The base plate 12 includes a fixing seat 121, and the upper housing 11 includes a cover 111. The cover 111 covers one end of the connecting pipe 2. The fixing seat 121 is located on the side of the cover 111 facing the connecting pipe 2. The connecting pipe 2 is mounted on the fixing seat 121. A rotating protruding ring 21 extends circumferentially from the end of the connecting pipe 2 facing the inner cavity of the housing 1. The fixing seat 121 has a relief groove 122 for the rotating protruding ring 21 to rotate. The relief groove 122 is arc-shaped. The rotating protruding ring 21 rotates along the opening direction of the relief groove 122, so that the connecting pipe 2 rotates circumferentially relative to the housing 1.

[0039] Reference Figure 3 and Figure 4 The rotating convex ring 21 has a circumferentially provided limiting part 211, and the upper cover 111 has a limiting plate 112. The rotating convex ring 21 stops rotating when the limiting part 211 abuts against the limiting plate 112. As a preferred embodiment, the limiting part 211 is an arc segment extending circumferentially from the rotating convex ring 21, and two abutting protrusions 212 are formed at both ends of the arc segment. Two limiting plates 112 are symmetrically provided in the rotating groove. There is a gap between the limiting plate 112 and the rotating convex ring 21, but the width of the gap is smaller than the width of the limiting part 211. Therefore, the limiting plate 112 only allows the rotating convex ring 21 to pass through while restricting the limiting part 211 from passing through. The rotating convex ring 21 stops rotating when the abutting protrusion 212 abuts against the limiting plate 112. Therefore, the connecting pipe 2 can be stopped from rotating in both clockwise and counterclockwise directions.

[0040] Reference Figure 5 and Figure 6 The connecting pipe 2 and the connecting seat 3 are hinged at one end and have circular connecting portions 22 on both sides. The connecting seat 3 has circular sleeve portions 31 on both sides at one end. The sleeve portions 31 are sleeved on the outside of the connecting portions 22 and are rotatably connected to the connecting portions 22. The connecting seat 3 and the connecting pipe 2 rotate about the rotation axis of the sleeve portions 31 and the connecting portions 22 to adjust the angle of inclination of the connecting seat 3 relative to the ground. Specifically, the connecting portion 22 has a retaining ring 221 protruding from its center. The sleeve portion 31 has a through hole 311. The retaining ring 221 passes through the through hole 311 to connect the sleeve portion 31 and the connecting portion 22. A buckle 5 passes through the rotation axis of the sleeve portion 31 and the connecting portion 22. The buckle 5 passes from the outside of the sleeve portion 31 to the inside of the connecting portion 22 and fastens to the connecting portion 22, so that the sleeve portion 31 and the connecting portion 22 remain relatively fixed in the direction of the rotation axis of the sleeve portion 31 and the connecting portion 22.

[0041] Reference Figure 7 The connecting seat 3 also includes an outer seat 32 and an inner seat 33. The inner seat 33 is installed inside the outer seat 32. Specifically, the end of the outer seat 32 connected to the connecting pipe 2 has a mounting groove 321 for the inner seat 33 to be engaged. The inner seat 33 extends outward along the circumferential wall of the through hole 311 to form a mounting ring 331. The outer seat 32 has a mounting hole 322 for the mounting ring 331 to be engaged. When the inner seat 33 is engaged in the mounting groove 321, the mounting ring 331 passes through the mounting hole 322. In addition, the end of the inner seat 33 near the through hole 311 protrudes towards the outer seat 32 with a protrusion 332, which can play a positioning and limiting role.

[0042] Reference Figure 7 and Figure 8 The sleeve part 31 includes a first sleeve part 312 located on the outer seat 32 and a second sleeve part 313 located on the inner seat 33. The mounting groove 321 includes a sleeve groove 323 located inside the first sleeve part 312. The sleeve groove 323 is opened along the length direction of the outer seat 32 and passes through the first sleeve part 312. The second sleeve part 313 slides from one end of the first sleeve part 312 and is inserted into the sleeve groove 323. The second sleeve part 313 is restricted and cannot rotate circumferentially.

[0043] Reference Figure 8 and Figure 9 A first wiring opening 34 is provided between the inner seat 33 and the outer seat 32, the first wiring opening 34 facing the sleeve part 31, and the retaining ring 221 has a notch to form a second wiring opening 23, which is combined with the attached Figure 10 The first wiring port 34 and the second wiring port 23 are connected.

[0044] Reference Figure 9 and Figure 11The connecting pipe 2 includes an outer shell 24 and an inner pipe 25. The outer shell 24 is used to connect to the fixing base 121, and the inner pipe 25 is connected to the dust-collecting chamber inside the shell 1 to transport dust. A cavity is formed between the outer shell 24 and the inner pipe 25. The end of the cavity near the connecting part 22 is sealed. A third wiring port 26 is opened at the end of the outer shell 24 near the connecting part 22. Figure 10 The third wiring port 26 faces the connecting part 22. The retaining ring 221 has a wire passage 222 that connects the third wiring port 26 and the second wiring port 23. The wire passes through the first wiring port 34, the second wiring port 23, the wire passage 222 and the third wiring port 26 in sequence from the outer seat 32 to the cavity, and then connects to the circuit board of the base plate 12.

[0045] Reference Figure 6 and Figure 8 The buckle 5 includes a through part 51 and an abutment part 52. One end of the through part 51 has a snap-fit ​​protrusion 511. The connecting tube 2 has a through groove 27 for the buckle 5 to pass through. The through part 51 passes through the through hole 311 from the outside of the outer seat 32 and exits through the through groove 27. When it is inserted, the groove wall of the through groove 27 squeezes the through part 51, causing the through part 51 to deform. When the through part 51 exits through the through groove 27, the elastic force of the through part 51 to restore its original shape causes the snap-fit ​​protrusion 511 to hook the inner wall of the connecting tube 2 to limit the retraction of the through part 51. The abutment part 52 is engaged with the outside of the outer seat 32.

[0046] Reference Figure 2 The side of the mounting base 121 facing the ground is completely open, meaning there is no mounting plate on the bottom surface of the mounting base 121, the cavity inside the mounting base 121 faces the ground, and the side plate of the mounting base 121 directly abuts against the ground. The mounting plate itself has a certain thickness. Due to the installation of the connecting pipe 2, the bottom plate 12 protrudes towards the ground. If the thickness of the mounting plate is added, the floor brush will be relatively uneven, and when the vacuum cleaner is placed flat, the floor brush may tilt up. Therefore, the bottom surface of the mounting base 121 is completely open to prevent the floor brush from tilting up.

[0047] Reference Figure 12 The upper cover 111 has a locking tongue 113 and a locking groove 114. The locking tongue 113 and the locking groove 114 are located above the connecting tube 2. The locking tongue 113 is located in the locking groove 114. The locking tongue 113 has a smooth curved surface. The connecting seat 3 has a latch 35. When the connecting seat 3 is in an upright position perpendicular to the ground, the latch 35 rolls along the surface of the locking tongue 113 into the locking groove 114. The locking tongue 113 restricts the latch 35 from exiting the locking groove 114, so that the connecting seat 3 and the body of the vacuum cleaner can stand upright without auxiliary fixation.

[0048] Reference Figure 1 and Figure 13The upper housing 11 also includes a suction pipe cover 115, which is fastened to the base plate 12 to form a suction channel. The suction channel is connected to the roller brush chamber. One end of the suction pipe cover 115 is connected to the connecting pipe 2, and a sealing ring 6 is provided at the connection between the suction pipe cover 115 and the connecting pipe 2. Specifically, one end of the sealing ring 6 is connected to the inner pipe 25, and the other end of the sealing ring 6 is connected to one end of the suction pipe cover 115. A limiting ring 61 extends circumferentially from the end of the sealing ring 6 connected to the inner pipe 25. When the sealing ring 6 is embedded in one end of the connecting pipe 2, the limiting ring 61 is used to restrict the movement of the sealing ring 6 into the connecting pipe 2. The end of the sealing ring 6 connected to the vacuum tube cover 115 is integrally provided with a surrounding part 62. The vacuum tube cover 115 has a connecting ring 116, which is surrounded by the surrounding part 62 and the sealing ring 6. A clearance space is formed between the surrounding part 62 and the sealing ring 6 to facilitate the rotation of the connecting tube 2. When the connecting tube 2 rotates, the surrounding part 62 can always fit the connecting ring 116 so that the vacuum tube cover 115 and the sealing ring 6 maintain a sealed state.

[0049] The sealing ring 6 has internal threads, and the inner wall of the outer seat 32 also has threads. A spring is installed inside the hose 4, which locks the hose 4 into the threads of the sealing ring 6 and the outer seat 32, thus fixing both ends of the hose 4. The sealing ring 6 connects the chamber used for dust collection and the hose 4 located in the connecting pipe 2, so that the transmission of dust sucked in from the roller brush chamber is in a relatively sealed state.

[0050] The implementation principle of the floor brush rotating structure in this embodiment is as follows: one end of the inner tube 25 is connected to the vacuum tube cover 115 through the sealing ring 6. The rotating convex ring 21 rotates in the relief groove 122 and the rotation angle is limited by the limiting part 211, so that the connecting tube 2 can rotate circumferentially relative to the housing 1 about the central axis of the connecting tube 2. The retaining ring 221 is inserted into the through hole 311 so that the sleeve part 31 and the connecting part 22 are rotatably connected. The retaining part 31 and the connecting part 22 are relatively fixed in the direction of the rotation axis of the sleeve part 31 and the connecting part 22 through the buckle 5. The connecting seat 3 can rotate relative to the connecting tube 2 to adjust the tilt angle between the vacuum cleaner body and the ground. The wiring of the vacuum cleaner body enters from the first wiring port 34, passes through the second wiring port 23 and the third wiring port 26 in sequence, and passes through the cavity to connect with the circuit board of the floor brush. One end of the sealing ring 6 is sealed to the dust suction pipe cover 115, and the other end of the sealing ring 6 is sealed to the connecting pipe 2. The sealing ring 6 connects the chamber for dust suction and the hose 4 located in the connecting pipe 2, so that the dust delivery is kept relatively sealed.

[0051] This application also discloses a vacuum cleaner, as shown in the embodiments below. Figure 1The vacuum cleaner includes a floor brush, a connector 7, and a body. The floor brush includes a housing 1 and a base plate 12. The connector 7 connects the floor brush and the body, and includes the floor brush rotating structure described above. The floor brush rotating structure includes a connecting pipe 2 and a connecting seat 3. A flexible hose 4 is fixed inside the connecting pipe 2 and the connecting seat 3. The flexible hose 4 is used to transport dust. One end of the connecting pipe 2 is rotatably connected to the housing 1, and the connecting pipe 2 can rotate circumferentially relative to the housing 1. The other end of the connecting pipe 2 is hinged to the connecting seat 3. When the connecting seat 3 and the body are at a certain angle to the ground, the connecting seat 3 and the body can swing to the left and right sides of the floor brush by rotating the connecting pipe 2. When the connecting seat 3 and the body are in a straight line with the connecting pipe 2, the connecting seat 3 and the body can rotate circumferentially on their own.

[0052] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A floor brush rotating structure, the floor brush including a housing (1), characterized in that: The device includes a connecting pipe (2) and a connecting seat (3). A flexible hose (4) is fixed inside the connecting pipe (2) and the connecting seat (3). The flexible hose (4) connects the connecting pipe (2) and the connecting seat (3). The connecting pipe (2) is set parallel to the ground. One end of the connecting pipe (2) is rotatably connected to a floor brush. The connecting pipe (2) rotates circumferentially between two dead points with the central axis of the connecting pipe (2) as the axis of rotation. The other end of the connecting pipe (2) has circular connecting parts (22) on both sides. One end of the connecting seat (3) has circular sleeve parts (31) on both sides. The sleeve parts (31) are sleeved on the outside of the connecting parts (22). The sleeve parts (31) are rotatably connected to the connecting parts (22). The connecting seat (3) and the connecting pipe (2) rotate with the rotation axis of the sleeve parts (31) and the connecting parts (22) as the axis of rotation to adjust the angle of inclination of the connecting seat (3) relative to the ground.

2. The floor brush rotating structure according to claim 1, characterized in that: The connecting part (22) has a retaining ring (221) protruding from the center. The sleeve part (31) has a through hole (311). The retaining ring (221) passes through the through hole (311) to connect the sleeve part (31) and the connecting part (22). A buckle (5) passes through the rotation axis of the sleeve part (31) and the connecting part (22). The buckle (5) passes from the outside of the sleeve part (31) to the inside of the connecting part (22) and fastens to the connecting part (22).

3. The floor brush rotating structure according to claim 1, characterized in that: The housing (1) includes an upper cover (111) and a bottom plate (12) that are interlocked. The bottom plate (12) includes a fixing seat (121). The connecting pipe (2) is mounted on the fixing seat (121). One end of the connecting pipe (2) has a rotating protruding ring (21) extending circumferentially. The fixing seat (121) has a relief groove (122) for the rotating protruding ring (21) to rotate. The rotating protruding ring (21) has a limiting part (211) circumferentially. The upper cover (111) has a limiting plate (112). The rotating protruding ring (21) stops rotating when the limiting part (211) abuts against the limiting plate (112).

4. The floor brush rotating structure according to claim 2, characterized in that: The connecting seat (3) includes an outer seat (32) and an inner seat (33). One end of the outer seat (32) has a mounting groove (321) for the inner seat (33) to be fitted. The inner seat (33) extends outward along the circumferential wall of the through hole (311) to form a mounting ring (331). The outer seat (32) has a mounting hole (322) for the mounting ring (331) to be fitted.

5. The floor brush rotating structure according to claim 4, characterized in that: The buckle (5) includes a through part (51) and an abutment part (52). One end of the through part (51) has a snap-fit ​​protrusion (511). The connecting tube (2) has a through groove (27) for the buckle (5) to pass through. The through part (51) passes through the mounting hole (322) and the through hole (311) in sequence and exits from the through groove (27) so that the snap-fit ​​protrusion (511) abuts against the inner wall of the connecting tube (2) and the abutment part (52) abuts against the outer side of the outer seat (32).

6. The floor brush rotating structure according to claim 4, characterized in that: A first wiring port (34) is provided between the inner seat (33) and the outer seat (32). The retaining ring (221) has a notch to form a second wiring port (23). The first wiring port (34) and the second wiring port (23) are connected. The connecting tube (2) includes an outer shell (24) and an inner tube (25). A cavity is formed between the outer shell (24) and the inner tube (25). The end of the cavity near the connecting part (22) is blocked. A third wiring port (26) is opened at one end of the outer shell (24). The third wiring port (26) faces the connecting part (22). The wiring passes through the first wiring port (34), the second wiring port (23) and the third wiring port (26) in sequence to the cavity.

7. The floor brush rotating structure according to claim 3, characterized in that: The upper cover (111) has a latch (113) and a locking groove (114), and the connecting seat (3) has a latch (35). When the connecting seat (3) is in an upright position perpendicular to the ground, the latch (35) rolls along the surface of the latch (113) into the locking groove (114), and the latch (113) restricts the latch (35) from exiting the locking groove (114).

8. The floor brush rotating structure according to claim 3, characterized in that: The side of the fixing seat (121) facing the ground is fully open so that the side plate of the fixing seat (121) directly abuts the ground.

9. The floor brush rotating structure according to claim 3, characterized in that: The housing (1) also includes a suction pipe cover (115), which is fastened to the base plate (12) to form a suction channel. One end of the suction pipe cover (115) is connected to the connecting pipe (2), and a sealing ring (6) is provided at the connection between the suction pipe cover (115) and the connecting pipe (2).

10. A vacuum cleaner, comprising a floor brush, a connector (7), and a body, wherein the connector (7) is used to connect the floor brush and the body, characterized in that: The connector (7) includes the floor brush rotating structure as described in any one of claims 1-9.

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