Gear type driving structure of sweeper and sweeper

Abstract

The utility model relates to the technical field of sweepers, and discloses a gear type driving structure of a sweeper, which comprises a shell, a motor, a motor gear, a transmission module and an output gear, the motor is fixed on the shell, the motor comprises a main body and an output shaft extending out relative to the main body, a knurling structure is arranged on the radial outer wall of the output shaft, the motor teeth are plastic parts, and the motor teeth are arranged on the output shaft in a sleeving manner in an interference fit manner and cover at least part of the knurling structure. A step part is convexly arranged on one surface, back on to the main body, of the motor tooth, the output tooth is rotationally connected with the shell, the output tooth is used for being fixed with a cleaning part, and the transmission module is connected with the shell and is respectively meshed with the motor tooth and the output tooth; the sweeper mainly solves the technical problem that an existing sweeper is high in cost due to the fact that motor teeth made of copper are adopted.

Description

Technical Field

[0001] The utility model relates to the technical field of sweeping machines, in particular to a gear-type driving structure of a sweeping machine and the sweeping machine. Background Art

[0002] Currently, the market demand for sweeping machines is growing. The motor teeth used in the gearboxes of existing sweeping machines are generally made of copper. During assembly, the copper gears and the output shaft of the motor are pressed together with a press fixture. Due to the high cost of copper gear materials and the high cost of gear hobbing on copper parts, the current cost of sweeping machines is relatively high.

[0003] Therefore, there is a need to improve the existing technology. Utility Model Content

[0004] The utility model provides a gear-type driving structure of a sweeper and the sweeper, mainly solving the technical problem of high cost caused by the use of copper motor teeth in existing sweepers.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A gear drive structure for a sweeping machine includes a housing, a motor, motor gears, a transmission module, and output gears;

[0007] The motor is fixed to the housing, and includes a main body and an output shaft extending relative to the main body. The output shaft is provided with a knurled structure on the radial outer wall. The motor teeth are plastic parts, and the motor teeth are sleeved on the output shaft in an interference fit manner and cover at least part of the knurled structure. The motor teeth are provided with a step portion on the side facing away from the main body. The output teeth are rotatably connected to the housing, and the output teeth are used to be fixed to the cleaning component. The transmission module is connected to the housing and meshes with the motor teeth and the output teeth respectively.

[0008] In one of the technical solutions, the transmission module includes at least one transmission gear rotatably connected to the housing.

[0009] In one of the technical solutions, the transmission module includes a transmission gear and a gear shaft, both ends of the gear shaft are connected to the housing, the transmission gear is sleeved on the gear shaft, and the transmission gear is respectively engaged with the motor teeth and the output teeth.

[0010] In one of the technical solutions, the shell includes a lower shell and an upper shell, the motor is fixedly connected to the lower shell, the motor teeth, the transmission module and the output teeth are all accommodated in the lower shell, the upper shell is fixedly connected to the lower shell and is used to cover the motor teeth, the transmission module and the output teeth, one end of the gear shaft is connected to the lower shell, and the other end of the gear shaft is connected to the upper shell.

[0011] In one of the technical solutions, the gear-type driving structure further includes a spring plate, which is fixed on the output tooth and is used to limit the position of the cleaning component.

[0012] In one of the technical solutions, the shape of the shrapnel is N-shaped.

[0013] The present application also provides a sweeping machine, comprising a cleaning component and the gear-type drive structure described in any of the above technical solutions, wherein the cleaning component is preferably a side brush.

[0014] Compared with the prior art, the gear drive structure of the sweeper provided by the present invention has at least the following beneficial effects:

[0015] The motor teeth of this solution are no longer made of copper, but are made of lower-cost plastic materials, which is beneficial to reducing the cost of the sweeper. Based on the design that the motor teeth are plastic parts, in order to improve the reliability of the connection between the motor teeth and the output shaft of the motor, this solution provides a knurled structure on the outer wall of the output shaft of the motor, and designs the motor teeth to be interference fit with the output shaft of the motor, thereby ensuring that the motor teeth will not have radial sliding and rotational slippage relative to the output shaft of the motor. In addition, this solution also provides a step portion on the motor teeth. On the one hand, this step portion can increase the thickness of the motor teeth to improve the structural strength of the motor teeth and reduce the risk of breakage of the motor teeth made of plastic material. On the other hand, the step portion can serve as a pressure-bearing part, so that when the motor teeth are inserted into the output shaft of the motor using external tooling, the external tooling will not damage the tooth-shaped portion at the outer edge of the motor teeth. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 A schematic diagram of a gear drive structure of a sweeper provided in an embodiment of the present application;

[0018] Figure 2 This is an exploded view of the gear drive structure of a sweeper provided in an embodiment of the present application;

[0019] Figure 3 A schematic diagram of the structure of the motor and motor teeth provided in an embodiment of the present application.

[0020] Reference numerals:

[0021] 1. Motor; 1.1. Knurling structure; 1.2. Main body; 1.3. Output shaft; 20. Housing; 2. Lower housing; 3. Upper housing; 4. Motor teeth; 4.1. Step portion; 50. Transmission module; 5. Transmission gear; 6. Gear shaft; 7. Output teeth; 8. Shrapnel. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0023] It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0024] It should be understood that the terms, "upper", "lower", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore cannot be understood as a limitation on this application.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" means two or more, unless otherwise specifically defined.

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0027] Please also refer to Figures 1 to 3The present invention provides a gear-type drive structure for a sweeping machine, comprising a motor 1, a housing 20, motor gears 4, a transmission module 50, and output gears 7. The housing 20 comprises a lower housing 2 and an upper housing 3. The motor 1 is fixed to the side of the lower housing 2 facing away from the upper housing 3. The motor gears 4, transmission module 50, and output gears 7 are housed within the lower housing 2. The upper housing 3 is fixedly connected to the lower housing 2 and serves to cover the motor gears 4, transmission module 50, and output gears 7, thereby protecting them and improving the service life of the drive structure. The motor gears 4 are fixedly connected to the output shaft of the motor 1, while the output gears 7 are rotatably connected to the housing 20. The output gears 7 are secured to a cleaning component, preferably a side brush in this embodiment. The transmission module 50 is connected to the housing 20 and meshes with the motor gears 4 and output gears 7, respectively. During operation, the motor 1 drives the motor gears 4 to rotate, which, through the transmission module 50, drives the output gears 7 to rotate, thereby driving the side brush to rotate and perform cleaning operations.

[0028] In this embodiment, the motor 1 specifically includes a main body 1.2 and an output shaft 1.3 extending relative to the main body 1.2. The output shaft 1.3 is provided with a knurled structure 1.1 on its radial outer wall. The motor teeth 4 are made of a relatively low-cost plastic. The motor teeth 4 are sleeved on the output shaft 1.3 with an interference fit and cover at least a portion of the knurled structure 1.1. The motor teeth 4 are provided with a stepped portion 4.1 on the side facing away from the main body 1.2. In other words, the motor teeth 4 of this solution are no longer made of copper, but are made of a lower-cost plastic material, which is beneficial to reducing the cost of the sweeper. Based on the design that the motor teeth 4 are plastic parts, in order to improve the reliability of the connection between the motor teeth 4 and the output shaft 1.3 of the motor 1, this solution provides a knurled structure 1.1 on the outer wall of the output shaft 1.3 of the motor 1, and designs the motor teeth 4 to be interference fit with the output shaft 1.3 of the motor 1, thereby ensuring that the motor teeth 4 will not slide radially or rotate relative to the output shaft 1.3 of the motor 1. In addition, this solution also provides a step portion 4.1 on the motor tooth 4. On the one hand, this step portion 4.1 can increase the thickness of the motor tooth 4 to improve the structural strength of the motor tooth 4 and reduce the risk of breakage of the plastic material of the motor tooth 4. On the other hand, the step portion 4.1 can serve as a pressure-bearing part, so that when the motor tooth 4 is inserted into the output shaft 1.3 of the motor 1 using an external tooling, the external tooling will not damage the tooth-shaped portion at the outer edge of the motor tooth 4.

[0029] In this embodiment, the transmission module 50 preferably includes a transmission gear 5 and a gear shaft 6. One end of the gear shaft 6 is connected to the lower housing 2, and the other end of the gear shaft 6 is connected to the upper housing 3. The transmission gear 5 rotates about the axis of the gear shaft 6. In other embodiments, the transmission module 50 may also include multiple transmission gears 5 that mesh with each other in sequence.

[0030] In this embodiment, a spring clip 8 is fixed on the output tooth 7. The spring clip 8 is fixed to the end of the output tooth 7 by means of screws. The shape of the spring clip 8 is preferably N-shaped. The spring clip 8 is used to limit the position of the side brush. By providing the spring clip 8, it is convenient for users to assemble and disassemble the side brush, thereby improving the efficiency of maintaining or replacing the side brush.

[0031] This embodiment also provides a sweeping machine, which includes a side brush and applies the gear drive structure described above. In addition, a negative pressure device is usually provided at the bottom of the sweeping machine. By activating the negative pressure device, the garbage brushed by the side brush can be collected to achieve the purpose of sweeping the floor.

[0032] The above is merely a preferred embodiment of the present invention and only specifically describes the technical principles of the present invention. These descriptions are intended only to explain the principles of the present invention and should not be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention, as well as other specific embodiments of the present invention that can be imagined by those skilled in the art without inventive effort, shall be included within the scope of protection of the present invention.

Claims

1. A gear drive structure for a sweeping machine, characterized in that: It includes a housing, a motor, motor gears, a transmission module and output gears; The motor is fixed to the housing, and includes a main body and an output shaft extending relative to the main body. The output shaft is provided with a knurled structure on the radial outer wall. The motor teeth are plastic parts, and the motor teeth are sleeved on the output shaft in an interference fit manner and cover at least part of the knurled structure. The motor teeth are provided with a step portion on the side facing away from the main body. The output teeth are rotatably connected to the housing, and the output teeth are used to be fixed to the cleaning component. The transmission module is connected to the housing and meshes with the motor teeth and the output teeth respectively.

2. The gear drive structure of the sweeping machine according to claim 1, characterized in that: The transmission module includes at least one transmission gear rotatably connected to the housing.

3. The gear drive structure of the sweeping machine according to claim 2, characterized in that: The transmission module includes a transmission gear and a gear shaft. Both ends of the gear shaft are connected to the housing. The transmission gear is sleeved on the gear shaft. The transmission gear is respectively engaged with the motor teeth and the output teeth.

4. The gear drive structure of the sweeping machine according to claim 3, characterized in that: The shell includes a lower shell and an upper shell, the motor is fixedly connected to the lower shell, the motor teeth, the transmission module and the output teeth are all accommodated in the lower shell, the upper shell is fixedly connected to the lower shell and is used to cover the motor teeth, the transmission module and the output teeth, one end of the gear shaft is connected to the lower shell, and the other end of the gear shaft is connected to the upper shell.

5. The gear drive structure of the sweeping machine according to claim 1, wherein: The gear-type driving structure further includes a spring plate, which is fixed on the output tooth and is used to limit the position of the cleaning component.

6. The gear drive structure of the sweeping machine according to claim 5, characterized in that: The outer shape of the shrapnel is N-shaped.

7. A sweeping machine, characterized in that: The cleaning device comprises a cleaning component and the gear-type driving structure according to any one of claims 1 to 6.

8. The sweeping machine according to claim 7, characterized in that: The cleaning component is a side brush.

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