Rolling brush mechanism

Abstract

The utility model discloses a rolling brush mechanism which comprises a motor assembly and a rolling brush cylinder, one end of the motor assembly is connected with a connecting support and connected to one side portion of a floor brush body, the other end of the motor assembly penetrates out to be provided with an output shaft and is connected with a transmission head, and the motor assembly comprises a shell and a motor body arranged in the shell. The shell comprises a barrel and a cover, one end of the barrel is closed and connected with the connecting support, the other end of the barrel is provided with an opening for the motor body to be installed in, the cover covers the opening and fixes the motor body in an inner cavity of the barrel, and an output shaft of the motor body penetrates out of the shell. An annular table is arranged on the side portion of the motor body, the bottom end of the cover body extends into the opening, a first sealing ring is clamped between the bottom end of the cover body and the annular table, the output shaft penetrates out of a through hole in the end face of the cover body, a second sealing ring is arranged on the output shaft in a sleeved mode, and the output shaft is clamped between the output shaft and the inner wall of the through hole. On one hand, installation of the motor body is facilitated, arrangement of a sealing structure is facilitated, so that better sealing is achieved, the motor is protected against short circuit damage caused by liquid damage, on the other hand, the good waterproof performance facilitates cleaning of the position where the rolling brush on the floor brush body is located, and the rolling brush can be directly washed with water; the problem that cleaning is difficult due to the waterproof problem of the motor is solved.

Description

Technical Field

[0001] This utility model relates to the field of floor cleaning machines, specifically a roller brush mechanism. Background Technology

[0002] Common floor cleaning machines include floor scrubbers, vacuum cleaners, and floor polishers, all of which use a roller brush located at the front of the brush to wipe the floor and pick up debris. To simplify the internal structure of the brush body, current technology places the motor that drives the roller brush inside the brush drum. However, since floor cleaning machines frequently clean surfaces containing liquids, the roller brush remains in a wet environment for extended periods, making waterproofing the motor particularly important. Furthermore, the area at the front of the brush body where the roller brush is located accumulates dirt over time. Due to the presence of the motor, the front of the brush body cannot be directly rinsed with water and must be manually cleaned, presenting a cleaning challenge. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a roller brush mechanism.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A roller brush mechanism includes a motor assembly and a roller brush cylinder. One end of the motor assembly is connected to a connecting bracket and attached to one side of a floor brush body. The other end of the motor assembly has an output shaft extending through it and connected to a transmission head. One end of the roller brush cylinder is open, forming an inner cavity with a fitting portion that is adapted to and engages with the transmission head. The other end of the roller brush cylinder has a locking component that can be locked to the other side of the floor brush body. The motor assembly includes a housing and a motor body disposed within the housing. The housing includes a cylindrical body and a cover. One end of the cylindrical body is closed and connected to the connecting bracket, while the other end has an opening for inserting the motor body. The cover closes the opening and fixes the motor body within the inner cavity of the cylindrical body. The output shaft of the motor body extends through the housing. A ring platform is provided on the side of the motor body. The bottom end of the cover extends into the opening and is clamped between the cover and the ring platform with a first sealing ring. The output shaft extends through a through hole on the end face of the cover, and a second sealing ring is fitted onto the output shaft and clamped between the output shaft and the inner wall of the through hole.

[0006] The connecting bracket is fitted with a waterproof oil seal, which has a waterproof lip that abuts against the end face of the housing.

[0007] The edge of the shell end face extends to form a perimeter, and the waterproof lip abuts against the shell end face inside the perimeter.

[0008] The connecting bracket is fitted with a third sealing ring, which acts between the connecting bracket and the inner wall of the roller brush cylinder.

[0009] The roller brush cylinder includes a surface fabric, an inner cylinder, and a support bracket. The surface fabric is laid on the outer surface of the inner cylinder, and the inner side of the inner cylinder forms an inner cavity and forms the joint. One side of the joint is fitted with the transmission head, and the support bracket is mounted on the other side of the joint and clamped between the locking component and the joint.

[0010] A fourth sealing ring is sandwiched between the support bracket and the other side of the joint.

[0011] The cover and the cylinder are secured together by a snap-fit ​​structure.

[0012] The second sealing ring is provided in two parts and is simultaneously sandwiched between the output shaft and the inner wall of the through hole.

[0013] The housing and the connecting bracket are fixedly connected by a connecting column, and a wire passage is formed inside the connecting column, and a wire harness sealing ring is filled inside the wire passage.

[0014] The connecting bracket is hinged to one side of the floor brush body, allowing the motor assembly to rotate outward relative to the floor brush body.

[0015] The beneficial effects of this utility model are as follows: This utility model adopts a new motor mounting structure, which divides the housing for mounting the motor body into a cover and a cylinder. On the one hand, this not only facilitates the installation of the motor body, but also helps to achieve the arrangement of the sealing structure, thereby achieving a better seal and protecting the motor from short-circuit damage caused by liquid. On the other hand, the good waterproof performance is conducive to cleaning the area where the roller brush is located on the floor brush body. It can be directly rinsed with water, solving the problem of difficult cleaning caused by the waterproofing of the motor in the past. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a breakdown diagram of the present invention;

[0019] Figure 3 This is a disassembled schematic diagram of the motor assembly of this utility model;

[0020] Figure 4 This is a cross-sectional view of the present invention. Detailed Implementation

[0021] Reference Figures 1 to 4A roller brush mechanism includes a motor assembly 1 and a roller brush cylinder 2. One end of the motor assembly 1 is connected to a connecting bracket 3, which is hinged to one side of the floor brush body, allowing the motor assembly 1 to rotate outward relative to the floor brush body, facilitating the assembly and disassembly of the roller brush cylinder 2. The other end of the motor assembly 1 has an output shaft 111 extending out and connected to a transmission head 4. One end of the roller brush cylinder 2 is open to form an inner cavity 21, and the inner cavity 21 is provided with a connecting part 211 that is adapted to fit and engage with the transmission head 4. The other end of the roller brush cylinder 2 is provided with a locking component 5 that can be locked to the other side of the floor brush body. Motor assembly 1 includes a housing 12 and a motor body 11 disposed within the housing 12. The housing 12 includes a cylindrical body 121 and a cover 122. One end of the cylindrical body 121 is closed and connected to a connecting bracket 3, while the other end has an opening for inserting the motor body 11. The cover 122 covers the opening and fixes the motor body 11 within the inner cavity 21 of the cylindrical body 121. The output shaft 111 of the motor body 11 extends out of the housing 12. A ring 112 is provided on the side of the motor body 11. The bottom end of the cover 122 extends into the opening and is clamped between it and the ring 112 with a first sealing ring 61. The output shaft 111... 1. A second sealing ring 62 is fitted onto the output shaft 111 through the through hole on the end face of the cover 122 and sandwiched between the output shaft 111 and the inner wall of the through hole. The housing 12 is divided into a cover 122 and a cylinder 121. On the one hand, it not only facilitates the installation of the motor body 11, but also helps to realize the arrangement of the sealing structure, thereby achieving better sealing and protecting the motor from short circuit damage caused by liquid. On the other hand, the good waterproof performance is conducive to cleaning the area where the roller brush is located on the brush body. It can be directly rinsed with water, solving the problem of difficult cleaning caused by the waterproofing of the motor in the past.

[0022] As a preferred embodiment of this utility model, a seal is also required between the motor assembly 1 and the connecting bracket 3. In this embodiment, a waterproof oil seal 8 is used to achieve this. The waterproof oil seal 8 is fitted onto the connecting bracket 3, and the waterproof oil seal 8 has a waterproof lip 81 that abuts against the end face of the housing 12, thereby achieving a seal. Further, the edge of the end face of the housing 12 extends to form a perimeter 123, and the waterproof lip 81 abuts against the end face of the housing 12 inside the perimeter 123, using the perimeter 123 to stabilize the sealing contact of the waterproof lip 81. Preferably, after the motor assembly 1 is fitted into the roller brush cylinder 2, a seal is also required between the connecting bracket 3 and the wall of the inner cavity 21 of the roller brush cylinder 2. Therefore, a third sealing ring 63 is fitted onto the connecting bracket 3, and the third sealing ring 63 acts between the connecting bracket 3 and the wall of the inner cavity 21 of the roller brush cylinder 2.

[0023] As a preferred embodiment, the roller brush cylinder 2 includes a surface fabric, an inner cylinder 22, and a support bracket 23. The surface fabric is laid on the outer surface of the inner cylinder 22, and the inner side of the inner cylinder 22 forms an inner cavity 21 and a joint 211. One side of the joint 211 is fitted into the transmission head 4. The support bracket 23 is mounted on the other side of the joint 211 and sandwiched between the locking member 5 and the joint 211. The support bracket 23 supports and enhances the strength of the joint 211, thereby enabling a more stable fit between the joint 211 and the transmission head 4. A fourth sealing ring 64 is sandwiched between the support bracket 23 and the other side of the joint 211, also to provide a sealing effect and prevent liquid from seeping into the motor from this direction.

[0024] Preferably, in order to facilitate the assembly of the cover 122 and the cylinder 121, the cover 122 and the cylinder 121 are fastened together by a snap-fit ​​structure, which is not only easy to assemble, but also provides a stable and effective connection.

[0025] Preferably, two second sealing rings 62 are provided and are simultaneously sandwiched between the output shaft 111 and the inner wall of the through hole to enhance the sealing performance at the outlet of the output shaft 111.

[0026] Furthermore, the housing 12 and the connecting bracket 3 are fixedly connected by the connecting post 124. A wire passage is formed inside the connecting post 124, so that the control circuit of the cleaning machine can enter the housing 12 through the connecting bracket 3 and the wire passage to be electrically connected to the motor body 11. The wire passage is filled with a wire harness sealing ring 7. The control circuit can only pass through the wire harness sealing ring 7 and then pass through the wire passage, which plays a role in sealing and waterproofing.

Claims

1. A roller brush mechanism, comprising a motor assembly (1) and a roller brush cylinder (2), wherein one end of the motor assembly (1) is connected to a connecting bracket (3) and connected to one side of a floor brush body, and the other end of the motor assembly (1) has an output shaft (111) extending through and connected to a transmission head (4), one end of the roller brush cylinder (2) is open to form an inner cavity (21), the inner cavity (21) is provided with a connecting part (211) adapted to fit into the transmission head (4), and the other end of the roller brush cylinder (2) is provided with a locking component (5) that can be locked to the other side of the floor brush body, characterized in that: The motor assembly (1) includes a housing (12) and a motor body (11) arranged in the housing (12). The housing (12) includes a cylindrical body (121) and a cover (122). One end of the cylindrical body (121) is closed and connected to a connecting bracket (3), and the other end has an opening for inserting the motor body (11). The cover (122) covers the opening and fixes the motor body (11) in the inner cavity (21) of the cylindrical body (121). The output shaft (111) of the motor body (11) extends out of the housing (12); the side of the motor body (11) is provided with a ring platform (112), the bottom end of the cover (122) extends into the opening and is clamped between the cover platform (112) and a first sealing ring (61), the output shaft (111) extends out of the through hole on the end face of the cover (122) and a second sealing ring (62) is sleeved on the output shaft (111) and clamped between the output shaft (111) and the inner wall of the through hole.

2. The rolling brush mechanism of claim 1, wherein: A waterproof oil seal (8) is fitted on the connecting bracket (3), and the waterproof oil seal (8) has a waterproof lip (81) that abuts against the end face of the housing (12).

3. The roll brush mechanism of claim 2, wherein: The edge of the end face of the housing (12) extends to form a perimeter (123), and the waterproof lip (81) abuts against the end face of the housing (12) inside the perimeter (123).

4. The rolling brush mechanism of claim 1 or 2 or 3, wherein: The connecting bracket (3) is fitted with a third sealing ring (63), which acts between the connecting bracket (3) and the inner cavity (21) wall of the roller brush cylinder (2).

5. The rolling brush mechanism of claim 1, wherein: The roller brush cylinder (2) includes a surface fabric, an inner cylinder (22), and a support bracket (23). The surface fabric is laid on the outer surface of the inner cylinder (22). The inner side of the inner cylinder (22) forms an inner cavity (21) and forms the connecting part (211). One side of the connecting part (211) is fitted with the transmission head (4). The support bracket (23) is mounted on the other side of the connecting part (211) and sandwiched between the locking component (5) and the connecting part (211).

6. The roll brush mechanism of claim 5, wherein: A fourth sealing ring (64) is sandwiched between the support bracket (23) and the other side of the joint (211).

7. The roll brush mechanism of claim 1, wherein: The cover (122) and the cylinder (121) are fastened together by a snap-fit ​​structure.

8. The roll brush mechanism of claim 1, wherein: The second sealing ring (62) is provided in two parts and is simultaneously sandwiched between the output shaft (111) and the inner wall of the through hole.

9. The roll brush mechanism of claim 1, wherein: The housing (12) and the connecting bracket (3) are fixedly connected by a connecting post (124). A wire-passing channel is formed in the connecting post (124), and a wire harness sealing ring (7) is filled in the wire-passing channel.

10. The roll brush mechanism of claim 1, wherein: The connecting bracket (3) is hinged to one side of the brush body, allowing the motor assembly (1) to rotate outward relative to the brush body.

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