Floor brush transmission structure for cleaning device

Abstract

The utility model discloses a ground brush transmission structure for being applied to cleaning equipment, it is designed to solve the problem that main roller brush is easy to be deadlocked because of abnormal load, and its structure includes ground brush head, main roller brush drive component, deputy roller brush assembly component and transmission component, main roller brush drive component contains motor, connecting piece no.

Description

Technical Field

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

[0002] In the brush structure of cleaning equipment (such as vacuum cleaners and floor scrubbers), the coordinated transmission of the main roller brush and the auxiliary roller brush is the core element to ensure cleaning efficiency. In existing technologies, the main roller brush and the auxiliary roller brush usually use a rigid mechanical transmission structure (such as direct gear meshing, belt pulley transmission, etc.) to achieve power transmission: the motor drives the main roller brush to rotate, and at the same time, the power is directly transmitted to the auxiliary roller brush through the gear set or belt, so that the two operate synchronously to complete the cleaning operation.

[0003] However, this rigid transmission structure has significant drawbacks in practical use: when the main roller brush is obstructed from rotation due to foreign objects on the ground (such as hair entangled or stones stuck) or a sudden increase in load, the resistance of the auxiliary roller brush is transmitted in reverse to the drive end of the main roller brush because the main and auxiliary roller brushes are directly linked through the rigid structure. This causes the main roller brush power system (such as the motor output shaft and transmission gears) to experience instantaneous overload. If the resistance exceeds the system's tolerance limit, it can easily cause the main roller brush to "lock up"—that is, the main roller brush cannot rotate at all. At this time, the motor continues to output torque, which may cause serious failures such as motor burnout, gear breakage, or roller brush shaft breakage. This not only affects the service life of the equipment but also leads to the interruption of cleaning operations.

[0004] To alleviate the aforementioned problems, some existing solutions attempt to cut off power transmission by adding overload protection devices (such as friction clutches and torque limiters). However, such devices require additional installation space, increasing structural complexity and manufacturing costs. Furthermore, they are prone to wear and tear during long-term use, leading to a drift in the protection threshold and making reliability difficult to guarantee. Therefore, how to simplify the structure while preventing the main roller brush from seizing due to abnormal load has become a critical technical challenge in the design of floor brush drives for cleaning equipment.

[0005] Therefore, in view of the shortcomings of the existing technology, it is necessary to design a floor brush transmission structure for use in cleaning equipment to solve the above problems. Utility Model Content

[0006] To overcome the shortcomings of the existing technology, this utility model provides a floor brush transmission structure for use in cleaning equipment, which reduces transmission wear, improves transmission synchronization, reduces noise and simplifies the structure.

[0007] To achieve the above and other related objectives, the technical solution provided by this utility model is: a floor brush transmission structure applied in cleaning equipment, comprising:

[0008] Floor brush head;

[0009] A main roller brush drive assembly includes a motor, a first connector, and a second connector. The motor is fixed in the brush head, the first connector is located at the output end of the motor, and the second connector is rotatably located in the brush head. The first connector and the second connector are arranged opposite to each other and are used to install the main roller brush.

[0010] A secondary roller brush assembly includes a connector three and a connector four, both of which are mounted in the brush head. The connector three and connector four are arranged opposite to each other and are used to install the secondary roller brush.

[0011] Also includes:

[0012] The transmission assembly includes a first magnet, a second magnet, and a gear set. The first magnet is fixed on the second connector, the second magnet is rotatably disposed in the brush head and is disposed opposite to the first magnet, and the gear set is disposed in the brush head and is used to drive the connection between the second magnet and the third connector.

[0013] The preferred technical solution is that both magnet one and magnet two are configured as disk structures with opposite magnetic poles.

[0014] The preferred technical solution is as follows: the second connector is mounted in the brush head via a bearing, the outer ring of the bearing is fixedly connected to the brush head, the second connector is fixedly mounted in the inner ring of the bearing, one end of the second connector is provided with a locking structure connected to the main roller brush, and the other end is fixedly connected to the first magnet.

[0015] Due to the application of the above technical solution, the beneficial effects of this utility model are as follows:

[0016] The floor brush transmission structure provided by this utility model, applied in cleaning equipment, through an innovative combination of magnetic coupling and gear transmission design, ensures coordinated power transmission between the main and auxiliary roller brushes while effectively preventing the main roller brush from seizing up due to abnormal load. Specific beneficial effects are as follows:

[0017] To prevent the main roller brush from seizing up and protect core components: In the transmission assembly, magnet one and magnet two employ non-contact magnetic transmission (disc structures with opposite magnetic poles are arranged opposite each other), replacing the traditional rigid mechanical connection. When the main roller brush experiences rotational obstruction due to foreign objects, sudden load increases, or other reasons, magnet one stops rotating along with connector two. At this time, magnet two can slide relative to magnet one due to magnetic force (without rigid forced linkage), preventing the resistance of the auxiliary roller brush from being transmitted back to the main roller brush drive end through the transmission system. This design cuts off the reverse transmission path of overload torque at the source of transmission, preventing the main roller brush drive assembly (such as the motor and output shaft) from seizing up due to continuous extreme loads, thereby avoiding failures such as motor burnout and gear breakage.

[0018] Ensuring transmission stability and power efficiency: The disc structure and reversed magnetic poles of magnet one and magnet two ensure the uniformity and stability of magnetic transmission, enabling efficient transmission of the main roller brush's power to magnet two; at the same time, the rigid transmission of the gear set between magnet two and auxiliary roller brush connector three ensures the synchronous operation of the auxiliary roller brush with the main roller brush, achieving power transmission efficiency comparable to traditional rigid transmission under non-overload conditions.

[0019] Simplified structure and improved reliability: Compared with the existing technology that uses additional overload protection devices (such as friction clutches) to achieve anti-lock, this structure directly achieves overload protection by utilizing the non-contact transmission characteristics of magnets. There is no need to add complex protection components, which reduces the number of parts and assembly difficulty, and lowers manufacturing costs. At the same time, the magnet transmission has no mechanical wear, and the low-friction rotation achieved by the bearing through the connecting part two can effectively extend the service life of the transmission system and improve the long-term reliability of the equipment.

[0020] Easy assembly and maintenance: The second connector, through the rotating connection structure between the bearing and the brush head, as well as the modular design of the magnet and gear set, makes the assembly and disassembly of the brush drive system simpler. During later maintenance, components can be replaced without complicated tools, reducing maintenance costs.

[0021] In summary, this invention achieves a balance between structural simplification and performance improvement in solving the problem of main roller brush seizing by combining magnetic coupling and gear transmission, significantly enhancing the durability and safety of the floor brush in cleaning equipment. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the floor brush head structure involved in this utility model.

[0023] Figure 2 This is a schematic diagram of the transmission structure involved in this utility model. Detailed Implementation

[0024] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0025] Please see Figures 1-2It should be noted that in the description of this utility model, the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. These terms are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. The terms "horizontal," "vertical," and "suspended," etc., do not indicate that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Example:

[0028] like Figures 1 to 2 As shown, according to a general technical concept of this utility model, a floor brush transmission structure for use in cleaning equipment is provided, comprising:

[0029] Floor brush head 1;

[0030] The main roller brush drive assembly includes a motor 21, a first connector (not shown) and a second connector 22. The motor 21 is fixed in the ground brush head 1, the first connector is located at the output end of the motor 21, and the second connector 22 is rotatably located in the ground brush head 1. The first connector and the second connector 22 are arranged opposite to each other and are used to install the main roller brush 100.

[0031] The auxiliary roller brush assembly includes a connector 31 and a connector 4 (not shown). Both connectors 31 and 4 are mounted in the brush head 1. Connectors 31 and 4 are arranged opposite to each other and are used to install the auxiliary roller brush 200.

[0032] Also includes:

[0033] The transmission assembly includes a first magnet 41, a second magnet 42, and a gear set 43. The first magnet 41 is fixed on the second connector 21, the second magnet 42 is rotatably disposed in the brush head 1 and is arranged opposite to the first magnet 41, and the gear set 43 is disposed in the brush head 1 and is used for transmission connection between the second magnet 42 and the third connector 31.

[0034] like Figures 1 to 2 As shown, in an exemplary embodiment of this utility model, magnet 41 and magnet 42 are both configured as disk structures with opposite magnetic poles.

[0035] like Figures 1 to 2 As shown, in an exemplary embodiment of this utility model, connector 22 is mounted in the brush head 1 via a bearing. The outer ring of the bearing is fixedly connected to the brush head 1, and connector 22 is fixedly mounted in the inner ring of the bearing. One end of connector 22 is provided with a locking structure that is connected to the main roller brush, and the other end is fixedly connected to magnet 41.

[0036] Therefore, this utility model has the following advantages:

[0037] The floor brush transmission structure provided by this utility model, applied in cleaning equipment, through an innovative combination of magnetic coupling and gear transmission design, ensures coordinated power transmission between the main and auxiliary roller brushes while effectively preventing the main roller brush from seizing up due to abnormal load. Specific beneficial effects are as follows:

[0038] To prevent the main roller brush from seizing up and protect core components: In the transmission assembly, magnet one and magnet two employ non-contact magnetic transmission (disc structures with opposite magnetic poles are arranged opposite each other), replacing the traditional rigid mechanical connection. When the main roller brush experiences rotational obstruction due to foreign objects, sudden load increases, or other reasons, magnet one stops rotating along with connector two. At this time, magnet two can slide relative to magnet one due to magnetic force (without rigid forced linkage), preventing the resistance of the auxiliary roller brush from being transmitted back to the main roller brush drive end through the transmission system. This design cuts off the reverse transmission path of overload torque at the source of transmission, preventing the main roller brush drive assembly (such as the motor and output shaft) from seizing up due to continuous extreme loads, thereby avoiding failures such as motor burnout and gear breakage.

[0039] Ensuring transmission stability and power efficiency: The disc structure and reversed magnetic poles of magnet one and magnet two ensure the uniformity and stability of magnetic transmission, enabling efficient transmission of the main roller brush's power to magnet two; at the same time, the rigid transmission of the gear set between magnet two and auxiliary roller brush connector three ensures the synchronous operation of the auxiliary roller brush with the main roller brush, achieving power transmission efficiency comparable to traditional rigid transmission under non-overload conditions.

[0040] Simplified structure and improved reliability: Compared with the existing technology that uses additional overload protection devices (such as friction clutches) to achieve anti-lock, this structure directly achieves overload protection by utilizing the non-contact transmission characteristics of magnets. There is no need to add complex protection components, which reduces the number of parts and assembly difficulty, and lowers manufacturing costs. At the same time, the magnet transmission has no mechanical wear, and the low-friction rotation achieved by the bearing through the connecting part two can effectively extend the service life of the transmission system and improve the long-term reliability of the equipment.

[0041] Easy assembly and maintenance: The second connector, through the rotating connection structure between the bearing and the brush head, as well as the modular design of the magnet and gear set, makes the assembly and disassembly of the brush drive system simpler. During later maintenance, components can be replaced without complicated tools, reducing maintenance costs.

[0042] In summary, this invention achieves a balance between structural simplification and performance improvement in solving the problem of main roller brush seizing by combining magnetic coupling and gear transmission, significantly enhancing the durability and safety of the floor brush in cleaning equipment.

[0043] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A floor brush drive structure used in cleaning equipment, including: Floor brush head; A main roller brush drive assembly includes a motor, a first connector, and a second connector. The motor is fixed in the brush head, the first connector is located at the output end of the motor, and the second connector is rotatably located in the brush head. The first connector and the second connector are arranged opposite to each other and are used to install the main roller brush. A secondary roller brush assembly includes a connector three and a connector four, both of which are mounted in the brush head. The connector three and connector four are arranged opposite to each other and are used to install the secondary roller brush. Its characteristic is that it further includes: The transmission assembly includes a first magnet, a second magnet, and a gear set. The first magnet is fixed on the second connector, the second magnet is rotatably disposed in the brush head and is disposed opposite to the first magnet, and the gear set is disposed in the brush head and is used to drive the connection between the second magnet and the third connector.

2. The floor brush transmission structure applied in cleaning equipment according to claim 1, characterized in that: Both magnet one and magnet two are configured as disk structures with opposite magnetic poles.

3. The floor brush transmission structure applied in cleaning equipment according to claim 1, characterized in that: The second connector is mounted in the brush head via a bearing. The outer ring of the bearing is fixedly connected to the brush head. The second connector is fixedly mounted in the inner ring of the bearing. One end of the second connector is provided with a locking structure that connects to the main roller brush, and the other end is fixedly connected to the first magnet.

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