Driving device for cleaning brush and cleaning brush

Abstract

The driving device for the cleaning brush comprises a shell part, a transmission gear set and a motor part, the shell part is provided with a containing cavity, a first hole and a second hole, the first hole and the second hole are communicated with the outside and the containing cavity, the transmission gear set is arranged in the containing cavity, the transmission gear set is connected with an output shaft, and the motor part is connected with the motor part. The output shaft penetrates through the first hole, the part, located outside, of the output shaft is used for being connected with the brush head, the motor part is arranged on the outer side of the shell part, a rotating shaft part of the motor part penetrates through the second hole, the rotating shaft part is sequentially sleeved with an abutting block, a first sealing ring and a connecting block, and at least part of the connecting block is located in the containing cavity and connected with the transmission gear set. The first sealing ring is matched with the rotating shaft part and clamped between the connecting block and the abutting block, the abutting block is arranged in the second hole, the abutting block is sleeved with a second sealing ring matched with the abutting block, and the second sealing ring is clamped between the shell part and the motor part.

Description

Technical Field

[0001] The utility model relates to the technical field of cleaning tools, in particular to a driving device for a cleaning brush and the cleaning brush. Background Art

[0002] A cleaning brush is a cleaning tool that can electrically drive the brush head to rotate, making it easier for users to clean scenes such as desktops, window surfaces, and the inner walls of fish tanks. The driving device on the cleaning brush is the core component that drives the above-mentioned brush head to rotate. Specifically, the driving device includes a motor, a housing, and a transmission gear set. The motor and the transmission gear set are both arranged in the housing. The rotating shaft of the motor is connected to the transmission gear set so that the transmission gear set can be driven to operate and drive the brush head to rotate. However, after many experiments and market research, the inventors found that when the above-mentioned cleaning brush is wet for cleaning, the existing driving device structure is prone to the risk of water entering the interior of the motor and damaging the motor. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems in the prior art. To this end, the utility model proposes a driving device for a cleaning brush.

[0004] The utility model also provides a cleaning brush with the driving device for the cleaning brush.

[0005] According to the first aspect of the present invention, a driving device for a cleaning brush includes a shell part, a transmission gear group and a motor part, the shell part is provided with a accommodating chamber, and a first hole and a second hole communicating with the outside and the accommodating chamber, the transmission gear group is provided in the accommodating chamber, the transmission gear group is connected to an output shaft, the output shaft is passed through the first hole, and the part of the output shaft located on the outside is used to connect with the brush head, the motor part is provided on the outside of the shell part, the rotating shaft part of the motor part is passed through the second hole, the rotating shaft part is sequentially sleeved with an abutment block, a first sealing ring and a connecting block, the connecting block is at least partially located in the accommodating chamber and connected to the transmission gear group, the first sealing ring cooperates with the rotating shaft part and is clamped between the connecting block and the abutment block, the abutment block is provided in the second hole, the abutment block is sleeved with a second sealing ring cooperating therewith, and the second sealing ring is clamped between the shell part and the motor part.

[0006] A driving device for a cleaning brush according to an embodiment of the present utility model has at least the following beneficial effects:

[0007] Through the above structure, the first sealing ring cooperates with the rotating shaft portion and is clamped between the connecting block and the abutting block. The first sealing ring can prevent liquid from flowing into the interior of the motor component through the gap between the rotating shaft portion and the abutting block. The abutting block is provided with a second sealing ring that cooperates with it. The second sealing ring is clamped between the housing portion and the motor component. The second sealing ring can prevent liquid from flowing into the interior of the motor component through the gap between the motor component and the abutting block. Therefore, it can be seen that the provision of the first sealing ring and the second sealing ring can greatly improve the waterproof performance of the motor component and reduce the risk of water entering the interior of the motor component and damaging the motor component.

[0008] According to some embodiments of the present invention, a mounting cylinder is provided on the outside of the shell component, the motor component is inserted into the mounting cylinder, and the second sealing ring is clamped between the bottom of the inner cavity of the mounting cylinder and the motor component.

[0009] According to some embodiments of the present invention, a convex ring is provided at the bottom of the inner cavity of the installation cylinder, the second sealing ring is located on the inner side of the convex ring, and the convex ring abuts against the motor component.

[0010] According to some embodiments of the present invention, the output shaft sleeve is provided with a third sealing ring that cooperates therewith, and the third sealing ring is clamped between the transmission gear set and the cavity wall of the accommodating cavity.

[0011] According to some embodiments of the present utility model, the shell member includes a shell body and a shell cover, the shell body is provided with a shell cavity and the first hole, the shell cavity is provided with an insertion port for placing the transmission gear group, the shell cover is provided on the shell body, the shell cover closes the insertion port to close the shell cavity into the accommodating cavity, the shell cover is provided with the second hole, and the motor member is provided on the shell cover.

[0012] According to some embodiments of the present invention, the shell cover is provided with a fitting groove, the bottom of the fitting groove is provided with an annular groove, the second hole is located on the inner side of the groove, the groove is provided with a fourth sealing ring, the shell cover is fitted on the shell body through the fitting groove, and the shell body surrounds the rim of the insertion port and the bottom of the groove to jointly clamp the fourth sealing ring.

[0013] According to some embodiments of the present invention, the motor component and the housing are both detachably connected to the housing cover.

[0014] The cleaning brush according to the second embodiment of the present invention includes the driving device for the cleaning brush as described above.

[0015] The cleaning brush according to the embodiment of the present invention has at least the following beneficial effects: through the above structure, the risk of water entering the interior of the motor components and damaging the motor components can be reduced, so that the service life of the cleaning brush can be extended.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 This is a structural diagram of an embodiment of a driving device for a cleaning brush of the present utility model;

[0019] Figure 2 for Figure 1 A sectional view of a driving device for a cleaning brush shown in FIG;

[0020] Figure 3 for Figure 1 A partial exploded view of the driving device for the cleaning brush shown in FIG;

[0021] Figure 4 for Figure 3 The structural diagram of the transmission gear set and output shaft shown in ;

[0022] Figure 5 for Figure 3 A partial exploded view of the housing cover and the fourth sealing ring shown in FIG;

[0023] Figure 6 for Figure 3 A partial exploded view of the motor component, connecting block, abutting block, first sealing ring and second sealing ring shown in FIG.

[0024] Reference numerals:

[0025] Housing 100, housing body 110, housing cavity 111, insertion port 1111A, first hole 112, rim 113, fourth connection hole 114, housing cover 120, second hole 121, mounting tube 122, protruding ring 122A, first connection hole 122B, fitting groove 123, groove 123A, third connection hole 124;

[0026] Transmission gear set 200;

[0027] Motor component 300, shaft portion 310, second connection hole 320;

[0028] Output shaft 400;

[0029] Connecting block 500;

[0030] A first sealing ring 610, a second sealing ring 620, a third sealing ring 630, and a fourth sealing ring 640;

[0031] abutment block 700;

[0032] Accommodating chamber S. DETAILED DESCRIPTION

[0033] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0034] In the description of this utility model, if there are descriptions of first, second, third, fourth, fifth, etc., they are only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0036] In this utility model, unless otherwise expressly defined, terms such as "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to direct connection or indirect connection through an intermediate medium; fixed connection or detachable connection or integral molding; mechanical connection; internal communication between two components or interaction between two components. Those skilled in the art can reasonably determine the specific meanings of these terms in this utility model based on the specific content of the technical solution.

[0037] Reference Figures 1 to 6 The embodiment of the present invention provides a driving device for a cleaning brush, which includes a housing 100 , a transmission gear set 200 and a motor 300 .

[0038] The housing 100 is provided with a housing chamber S, and a first hole 112 and a second hole 121 communicating with the outside and the housing chamber S. The transmission gear set 200 is provided in the housing chamber S. The transmission gear set 200 is connected to an output shaft 400. The output shaft 400 is passed through the first hole 112. The portion of the output shaft 400 located on the outside is used to connect with the brush head. The motor 300 is provided on the outside of the housing 100. The shaft portion 310 of the motor 300 is passed through the second hole 121. The shaft portion 310 is sleeved in sequence. An abutment block 700, a first sealing ring 610, and a connection block 500 are provided. The connection block 500 is at least partially located in the accommodating chamber S and connected to the transmission gear assembly 200. The first sealing ring 610 cooperates with the rotating shaft portion 310 and is clamped between the connection block 500 and the abutment block 700. The abutment block 700 is disposed in the second hole 121 and is fitted with a second sealing ring 620 that cooperates therewith. The second sealing ring 620 is clamped between the housing 100 and the motor 300. Both the first sealing ring 610 and the second sealing ring 620 are made of an elastic material.

[0039] It is understandable that the motor component 300 is provided with an annular avoidance gap L corresponding to the rotating shaft portion 310 , and liquid can enter the interior of the motor component 300 through the avoidance gap L.

[0040] It can be understood that the first sealing ring 610 cooperates with the rotating shaft portion 310, that is, the inner ring of the first sealing ring 610 is in close contact with the rotating shaft portion 310; the second sealing ring 620 cooperates with the abutment block 700, that is, the inner ring of the second sealing ring 620 is in close contact with the abutment block 700.

[0041] Through the above structure, the first sealing ring 610 cooperates with the rotating shaft portion 310 and is clamped between the connecting block 500 and the abutting block 700. The first sealing ring 610 can prevent liquid from entering the above-mentioned avoidance gap L from the gap between the rotating shaft portion 310 and the abutting block 700 and flowing into the interior of the motor component. The abutting block 700 is provided with a second sealing ring 620 that cooperates with it. The second sealing ring 620 is clamped between the housing 100 and the motor component 300. The second sealing ring 620 can prevent liquid from entering the above-mentioned avoidance gap L from the gap between the motor component 300 and the abutting block 700 and flowing into the interior of the motor component 300. Therefore, it can be seen that the provision of the first sealing ring 610 and the second sealing ring 620 can greatly improve the waterproof performance of the motor component 300 and reduce the risk of water entering the interior of the motor component 300 and damaging the motor component 300.

[0042] The housing 100 includes a housing body 110 and a housing cover 120 .

[0043] Reference Figure 2 and Figure 3The shell body 110 is provided with a shell cavity 111 and the above-mentioned first hole 112. The shell cavity 111 is provided with an insertion port 111A for inserting the transmission gear set 200. The shell cover 120 is provided on the shell body 110. The shell cover 120 closes the insertion port 111A to close the shell cavity 111 into the above-mentioned accommodating cavity S. The shell cover 120 is provided with the above-mentioned second hole 121. The motor component 300 is provided on the shell cover 120.

[0044] In order to improve the connection stability of the motor component 300 on the housing cover 120, refer to Figure 2 and Figure 3 The shell cover 120 is provided with a mounting tube 122 , the motor component 300 is inserted into the mounting tube 122 , and the second sealing ring 620 is clamped between the inner cavity bottom of the mounting tube 122 and the motor component 300 .

[0045] In this embodiment, referring to Figure 2 and Figure 3 A convex ring 122A is provided at the bottom of the inner cavity of the mounting cylinder 122 , and the second sealing ring 620 is located on the inner side of the convex ring 122A, and the convex ring 122A abuts against the motor component 300 .

[0046] Through the above structure, the convex ring 122A abuts against the motor component 300, which can prevent liquid from passing through the gap between the motor component 300 and the bottom of the inner cavity of the mounting cylinder 122, so as to further reduce the risk of water entering the motor component 300 and damaging the motor component 300.

[0047] In this embodiment, referring to Figure 2 and Figure 4 The output shaft 400 is sleeved with a third sealing ring 630 that cooperates therewith. The third sealing ring 630 is clamped between the transmission gear set 200 and the cavity wall of the accommodating cavity S. The third sealing ring 630 is made of elastic material.

[0048] It can be understood that the third sealing ring 630 cooperates with the output shaft 400 , that is, the inner ring of the third sealing ring 630 is in close contact with the output shaft 400 .

[0049] Through the above structure, the third sealing ring 630 can prevent liquid from passing through the gap between the output shaft 400 and the hole wall of the first hole 112, so as to improve the sealing performance of the accommodating chamber S.

[0050] The shell cover 120 is provided on the shell body 110. For details, refer to Figure 2 、 Figure 3 as well as Figure 5The housing cover 120 is provided with a fitting groove 123. The bottom of the fitting groove 123 is provided with an annular groove 123A. The second hole 121 is located inside the groove 123A. The groove 123A is provided with a fourth sealing ring 640. The housing cover 120 is fitted onto the housing body 110 through the fitting groove 123. The housing body 110's rim 113 surrounding the insertion opening 111A and the bottom of the groove 123A jointly clamp the fourth sealing ring 640. The fourth sealing ring 640 is made of an elastic material.

[0051] Through the above structure, the rim 113 of the housing 110 surrounding the insertion opening 111A and the bottom of the groove 123A jointly clamp the fourth sealing ring 640. The fourth sealing ring 640 can prevent liquid from passing through the gap between the housing 110 and the sidewall of the insertion groove 123, thereby improving the sealing of the accommodating chamber S. The provision of the fourth sealing ring 640 can, on the one hand, prevent external liquid from entering the accommodating chamber S through the above gap, and on the other hand, prevent the lubricating liquid on the transmission gear set 200 in the accommodating chamber S from flowing out through the above gap to the outside (causing leakage).

[0052] In this embodiment, the motor component 300 and the housing body 110 are both detachably connected to the housing cover 120 .

[0053] The motor component 300 is detachably connected to the shell cover 120. Specifically, referring to the figure, a first connecting hole 122B is provided at the bottom of the inner cavity of the mounting cylinder 122, and a second connecting hole 320 is provided to the motor component 300. The first connecting hole 122B and the second connecting hole 320 are threadedly connected with a first fastener.

[0054] The housing 110 and the housing cover 120 are detachably connected. Figure 1 and Figure 2 The shell cover 120 is provided with a third connecting hole 124, and the shell body 110 is provided with a fourth connecting hole 114. The third connecting hole 124 and the fourth connecting hole 114 are threadedly connected with a second fastener.

[0055] In this embodiment, the motor component 300 can drive the rotating shaft portion 310 thereon to rotate, and the rotating rotating shaft portion 310 can drive the output shaft 400 to rotate through the transmission gear set 200 .

[0056] It can be understood that when the rotating shaft portion 310 rotates, the first sealing ring 610 can rotate; when the output shaft 400 rotates, the third sealing ring 630 can rotate.

[0057] The utility model also provides a cleaning brush, which includes the above-mentioned driving device for the cleaning brush. Through the above-mentioned structure, the risk of water entering the interior of the motor components and damaging the motor components can be reduced, so that the service life of the cleaning brush can be extended.

[0058] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. A driving device for a cleaning brush, characterized in that: include A housing (100) is provided with a receiving cavity (S), and a first hole (112) and a second hole (121) communicating with the outside and the receiving cavity (S); A transmission gear set (200) is provided in the accommodating chamber (S), the transmission gear set (200) is connected to an output shaft (400), the output shaft (400) is passed through the first hole (112), and the outer portion of the output shaft (400) is used to connect to the brush head; The motor component (300) is arranged on the outside of the housing component (100). The rotating shaft portion (310) of the motor component (300) is inserted into the second hole (121). The rotating shaft portion (310) is sequentially sleeved with an abutment block (700), a first sealing ring (610) and a connecting block (500). The connecting block (500) is at least partially located in the accommodating cavity (S) and connected to the transmission gear set (200). The first sealing ring (610) cooperates with the rotating shaft portion (310) and is clamped between the connecting block (500) and the abutment block (700). The abutment block (700) is arranged in the second hole (121). The abutment block (700) is sleeved with a second sealing ring (620) that cooperates with it. The second sealing ring (620) is clamped between the housing component (100) and the motor component (300).

2. A driving device for a cleaning brush according to claim 1, characterized in that: A mounting cylinder (122) is provided on the outside of the housing (100), the motor component (300) is inserted into the mounting cylinder (122), and the second sealing ring (620) is clamped between the bottom of the inner cavity of the mounting cylinder (122) and the motor component (300).

3. A driving device for a cleaning brush according to claim 2, characterized in that: A convex ring (122A) is provided at the bottom of the inner cavity of the installation cylinder (122), the second sealing ring (620) is located inside the convex ring (122A), and the convex ring (122A) abuts against the motor component (300).

4. A driving device for a cleaning brush according to claim 1, characterized in that: The output shaft (400) is sleeved with a third sealing ring (630) that cooperates with the output shaft (400), and the third sealing ring (630) is clamped between the transmission gear set (200) and the cavity wall of the accommodating cavity (S).

5. The driving device for a cleaning brush according to claim 1, characterized in that: The housing (100) comprises: The housing (110) is provided with a housing cavity (111) and the first hole (112); the housing cavity (111) is provided with an insertion opening (111A) for inserting the transmission gear set (200); A shell cover (120) is provided on the shell body (110), the shell cover (120) closes the insertion port (111A) to close the shell cavity (111) into the accommodating cavity (S), the shell cover (120) is provided with the second hole (121), and the motor component (300) is provided on the shell cover (120).

6. A driving device for a cleaning brush according to claim 5, characterized in that: The shell cover (120) is provided with a fitting groove (123), the bottom of the fitting groove (123) is provided with an annular groove (123A), the second hole (121) is located on the inner side of the groove (123A), the groove (123A) is provided with a fourth sealing ring (640), the shell cover (120) is fitted on the shell body (110) through the fitting groove (123), and the shell body (110) surrounds the rim portion (113) of the insertion port (111A) and the bottom of the groove (123A) to jointly clamp the fourth sealing ring (640).

7. A driving device for a cleaning brush according to claim 5, characterized in that: The motor component (300) and the housing (110) are both detachably connected to the housing cover (120).

8. Cleaning brush, characterized by: The cleaning brush comprises a driving device according to any one of claims 1 to 7.

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