Driving wheel assembly and sweeping robot

Abstract

The utility model discloses a driving wheel assembly and a sweeping robot, the driving wheel assembly comprises a swing arm base, a swing arm, a driving motor, a pre-pressing mechanism and a rotating shaft seat, the swing arm is connected to the swing arm base; the pre-pressing mechanism comprises a rotating shaft, a hook and a swing arm baffle, and the swing arm base is connected with a rotating shaft seat through the rotating shaft; a rotating shaft mounting seat for mounting a rotating shaft is arranged on the rotating shaft seat, and a torsional spring is mounted on the rotating shaft; one end of the torsion spring is connected to the swing arm baffle of the swing arm base, and the other end is connected to the hook. According to the utility model, the driving motor is adopted to directly drive the tires, so that the noise caused by an acceleration mechanism and the like during the operation of the sweeper is reduced; the sweeping robot is provided with at least two driving wheel assemblies, so that the main body is prevented from being holed, the driving wheel assemblies are directly arranged in the bearing bin of the shell, and the strength of the main body of the sweeping robot is improved; by increasing the unsprung mass, the friction force to the ground is improved, and the problem of slipping of the machine is solved.

Description

Technical Field

[0001] The utility model relates to a driving device of a sweeping machine, in particular to a driving wheel assembly and a sweeping robot, belonging to the technical field of sweeping robot equipment. Background Art

[0002] A sweeping robot, also known as a sweeping machine, automatic sweeping machine, smart vacuum cleaner, robot vacuum cleaner, etc., is a type of smart home appliance that can automatically clean the floor in the room with the help of artificial intelligence. It generally uses brushing and vacuuming to absorb the debris on the ground into its own garbage collection box, thereby completing the function of floor cleaning. Generally speaking, a robot that completes the work of sweeping, vacuuming, and mopping the floor.

[0003] In the prior art, traditional sweepers use reduction motors as driving wheels. Due to the existence of the reduction mechanism, this method causes high noise due to the friction and vibration caused by the high speed of the motor. In addition, the structure of the driving wheel of the traditional sweeper is to open a through hole larger than the drive plus the swing arm on the chassis, fix the driving wheel, and connect the swing arm and the bottom shell with a tension spring to achieve the effect of suspension. The problems caused by this structure are: a large hole on the chassis reduces the strength of the structure; maintenance is inconvenient, and the chassis needs to be disassembled before disassembling the driving wheel; when the friction coefficient of the tire to the ground is consistent and the weight of the machine body is not much different, the traditional way to increase the friction of the sweeper is the elastic force of the driving wheel spring, but when the elastic force is small, it cannot provide enough grip for the wheel, and when the elastic force is large, it will lift the machine up, causing the machine to slip. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a driving wheel assembly and a sweeping robot, which solve the problems of the existing sweeping robots such as high noise, inconvenient maintenance, easy slipping, etc.

[0005] The technical problem to be solved by the utility model is achieved by adopting the following technical solutions:

[0006] The utility model provides a driving wheel assembly, comprising a swing arm base, a swing arm, a driving motor, a pre-pressing mechanism and a rotating shaft seat, wherein:

[0007] The swing arm is connected to the swing arm base;

[0008] The pre-pressing mechanism includes a rotating shaft, a hook and a swing arm baffle, wherein:

[0009] The swing arm base is connected to the rotating shaft seat via the rotating shaft;

[0010] The rotating shaft seat is provided with a rotating shaft mounting seat for mounting the rotating shaft, wherein:

[0011] A torsion spring is installed on the rotating shaft;

[0012] One end of the torsion spring is connected to the swing arm baffle of the swing arm base, and the other end is connected to the hook.

[0013] As a preferred technical solution of the utility model, a mounting bin is provided on one side of the swing arm base, wherein:

[0014] The hook is provided on the top of the installation bin;

[0015] The rotating shaft passes through the installation compartment.

[0016] As a preferred technical solution of the utility model, both sides of the rotating shaft mounting seat are rotating shaft seat limiting surfaces.

[0017] As a preferred technical solution of the utility model, the bottom of the swing arm base is a base limiting surface.

[0018] As a preferred technical solution of the utility model, the rotating shaft seat also has a plurality of assembly holes.

[0019] As a preferred technical solution of the utility model, a drive motor and a tire installed on the drive motor are installed in the swing arm, wherein:

[0020] A counterweight is also arranged on the outer side of the driving motor.

[0021] The utility model also provides a sweeping robot, comprising the aforementioned driving wheel assembly, comprising at least two driving wheel assemblies, wherein the driving wheel assembly is installed in a carrying compartment in a housing of the sweeping robot;

[0022] Preferably, the housing is mounted on an assembly hole on a rotating shaft seat of the driving wheel assembly.

[0023] The beneficial effects of the utility model are as follows: the utility model reduces the noise caused by the acceleration mechanism and the like when the sweeping machine is running by directly driving the tire with a driving motor; the sweeping robot is installed with at least two driving wheel assemblies, avoiding the need to open holes in the main body, and the driving wheel assembly can be directly installed in the bearing compartment of the shell, thereby improving the strength of the sweeping machine body; by increasing the unsprung mass, the friction against the ground is increased, thereby solving the problem of machine slipping. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the driving wheel assembly of the utility model;

[0025] Figure 2 This is one of the partial structural schematic diagrams of the driving wheel assembly of the utility model;

[0026] Figure 3This is the second partial structural schematic diagram of the driving wheel assembly of the utility model;

[0027] Figure 4 This is the third partial structural schematic diagram of the driving wheel assembly of the utility model;

[0028] Figure 5 This is one of the structural schematic diagrams of the sweeping robot of the present utility model;

[0029] Figure 6 This is the second structural schematic diagram of the sweeping robot of the present utility model;

[0030] Figure 7 This is the third structural schematic diagram of the sweeping robot of the present utility model;

[0031] Figure 8 This is the fourth structural schematic diagram of the sweeping robot of the present utility model;

[0032] In the figure: 2, swing arm base; 201, mounting chamber; 202, base limiting surface; 204, hook; 205, swing arm baffle; 301, drive motor; 302, counterweight; 303, tire; 304, swing arm; 305, rotating shaft; 306, torsion spring; 307, rotating shaft seat; 3071, rotating shaft mounting seat; 30711, rotating shaft seat limiting surface; 3072, assembly hole; 9, shell; 901, bearing chamber. DETAILED DESCRIPTION

[0033] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0034] Example

[0035] like Figure 1-5 As shown, this embodiment provides a driving wheel assembly, including a swing arm base 2, a swing arm 304, a driving motor 301, a pre-pressing mechanism and a rotating shaft seat 307, wherein the swing arm 304 is connected to the swing arm base 2, and a mounting chamber 201 is provided on one side of the swing arm base 2, wherein a hook 204 is provided on the top of the mounting chamber 201 for hanging a torsion spring 306;

[0036] The pre-pressing mechanism in this embodiment includes a rotating shaft 305, a hook 204 and a swing arm baffle 205, wherein the swing arm base 2 is connected to the rotating shaft seat 307 via the rotating shaft 305;

[0037] Specifically, a shaft mounting seat 3071 for mounting the shaft 305 is provided on the shaft seat 307 , wherein a torsion spring 306 is installed on the shaft 305 ; one end of the torsion spring 306 is connected to the swing arm baffle 205 of the swing arm base 2 , and the other end is connected to the hook 204 .

[0038] The rotating shaft 305 passes through the installation chamber 201 , so that the torsion spring 306 is located in the installation chamber 201 , which facilitates the torsion spring 306 to be connected to the hook at one end and to the swing arm baffle 205 at the other end.

[0039] The two sides of the rotating shaft mounting seat 3071 are the rotating shaft seat limiting surfaces. The bottom of the swing arm base 2 is the base limiting surface 202. The rotating shaft seat 307 and the swing arm 304 generate pre-pressure, and the top surface of the rotating shaft seat 307 body and the base limiting surface 202 of the swing arm base 2 form a torsion spring limit to control the angle between the swing arm 304 and the rotating shaft seat 307. Then, through the rotating shaft seat limiting surface 30711 on the rotating shaft seat 307, after being assembled with the main body (such as the housing 9), it is fixed through the assembly hole 203. Through the above scheme, the main body does not need to open a hole, which ensures the strength of the main body, and the driving wheel assembly in the form of a suspension module can also be conveniently installed in the main body.

[0040] The shaft seat 307 also has several assembly holes 3072. When the driving wheel assembly is installed on the sweeper, the shell 9 can be connected through the assembly holes to achieve the function of installing the driving wheel assembly on the sweeper. In the shell 9, rollers 8 can be set in front and behind the driving wheel assembly.

[0041] A driving motor 301 and a tire 303 installed on the driving motor 301 are installed in the swing arm 304, wherein a counterweight block 302 is also provided on the outer side of the driving motor 301. The driving motor 301 is used to directly drive the tire 303, thereby avoiding the noise problem of the reduction motor.

[0042] This embodiment further provides a sweeping robot, having the aforementioned driving wheel assembly, having at least two driving wheel assemblies, wherein the driving wheel assembly is installed in a carrying compartment 901 in a housing 9 of the sweeping robot;

[0043] Preferably, in this embodiment, the housing 9 is installed with the assembly hole 3072 on the shaft seat 307 of the driving wheel assembly. This makes it unnecessary to open a through hole in the main body (housing 9), thereby ensuring the strength of the main body, and the driving wheel assembly in the form of a suspension module can also be conveniently installed in the main body.

[0044] The utility model reduces the noise caused by the acceleration mechanism and the like when the sweeper is running by adopting the form of directly driving the tire with a driving motor; the sweeping robot is installed with at least two driving wheel assemblies, avoiding the need to open holes in the main body, and the driving wheel assembly can be directly installed in the bearing compartment of the shell, thereby improving the strength of the sweeper body; by increasing the unsprung mass, the friction against the ground is increased, thereby solving the problem of machine slipping.

[0045] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of protection claimed by the utility model. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A driving wheel assembly, characterized in that: It comprises a swing arm base (2), a swing arm (304), a drive motor (301), a pre-pressing mechanism and a rotating shaft seat (307), wherein: The swing arm (304) is connected to the swing arm base (2); The pre-pressing mechanism comprises a rotating shaft (305), a hook (204) and a swing arm baffle (205), wherein: The swing arm base (2) is connected to the rotating shaft seat (307) via the rotating shaft (305); The rotating shaft seat (307) is provided with a rotating shaft mounting seat (3071) for mounting the rotating shaft (305), wherein: A torsion spring (306) is installed on the rotating shaft (305); One end of the torsion spring (306) is connected to the swing arm baffle (205) of the swing arm base (2), and the other end is connected to the hook (204).

2. A driving wheel assembly according to claim 1, characterized in that: A mounting compartment (201) is provided on one side of the swing arm base (2), wherein: The top of the installation bin (201) is provided with the hook (204); The rotating shaft (305) passes through the installation chamber (201).

3. A driving wheel assembly according to claim 1, characterized in that: The two sides of the rotating shaft mounting seat (3071) are rotating shaft seat limiting surfaces.

4. A driving wheel assembly according to claim 1, characterized in that: The bottom of the swing arm base (2) is a base limiting surface (202).

5. The driving wheel assembly according to claim 1, characterized in that: The rotating shaft seat (307) is also provided with a plurality of assembly holes (3072).

6. A driving wheel assembly according to claim 1, characterized in that: A driving motor (301) and a tire (303) mounted on the driving motor (301) are installed in the swing arm (304), wherein: A counterweight block (302) is also provided on the outer side of the driving motor (301).

7. A sweeping robot, comprising a driving wheel assembly as claimed in any one of claims 1 to 6, characterized in that: The invention has at least two driving wheel assemblies, wherein the driving wheel assemblies are installed in a carrying compartment (901) in a housing (9) of a cleaning robot.

8. The sweeping robot according to claim 7, characterized in that: The housing (9) is mounted on the assembly hole (3072) on the rotating shaft seat (307) of the driving wheel assembly.

Images