Roller transmission device of sweeping robot

Abstract

The utility model belongs to the technical field of sweeping robots, and particularly relates to a roller transmission device of a sweeping robot, which comprises a bottom plate. The device comprises four fixing sleeves, a connecting shaft, two universal wheels, a transmission shaft, two rotating wheels, a motor, a transmission gear and a driving gear, the four fixing sleeves are symmetrically and fixedly connected to the top of the bottom plate at equal intervals, the outer walls of the connecting shaft and the transmission shaft are rotationally connected with the inner walls of the corresponding fixing sleeves, and the number of the universal wheels and the number of the rotating wheels are both two. The two universal wheels and the rotating wheel are rotationally connected to the left side and the right side of the connecting shaft and the left side and the right side of the transmission shaft respectively, the motor is fixedly connected to the top of the bottom plate, and the transmission gear is fixedly connected to the left side of an output shaft of the motor. And therefore, the damping effect is achieved, the problem that the robot is damaged due to shaking is effectively prevented, and good practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sweeping robots, in particular to a roller transmission device of the sweeping robot. Background Art

[0002] A sweeping robot, also known as an automatic sweeper, 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 floor into its own garbage collection box, thereby completing the function of floor cleaning. Generally speaking, robots that complete sweeping, vacuuming, and mopping are also collectively classified as sweeping robots.

[0003] The sweeping robots in the prior art are usually moved by roller transmission during actual use. When the robot moves, it is easily affected by the ground and obstacles, causing bumps and shaking. Frequent shaking can easily cause the internal components of the sweeping robot to loosen and be damaged by bumps, resulting in inconvenience during use. Therefore, we propose a roller transmission device for a sweeping robot to solve the above-mentioned problems. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art that, in actual use, the robot is usually moved by roller transmission, and when the robot moves, it is easily affected by the ground and obstacles, causing bumps and shaking, and frequent shaking can easily cause the internal components of the sweeping robot to loosen and be damaged by bumps, resulting in inconvenience during use. A roller transmission device for a sweeping robot is proposed to solve the problem.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A roller transmission device of a sweeping robot, comprising

[0007] Base plate;

[0008] A fixed sleeve, a connecting shaft, a universal wheel, a transmission shaft, a rotating wheel, a motor, a transmission gear and a driving gear. The number of the fixed sleeves is four, and the four fixed sleeves are symmetrically fixedly connected to the top of the bottom plate at equal intervals. The outer walls of the connecting shaft and the transmission shaft are rotatably connected to the inner walls of the corresponding fixed sleeves. The number of the universal wheels and the rotating wheels are two, and the two universal wheels and the rotating wheels are rotatably connected to the left and right sides of the connecting shaft and the transmission shaft respectively. The motor is fixedly connected to the top of the bottom plate, the transmission gear is fixedly connected to the left side of the motor output shaft, and the driving gear is fixedly connected to the outer wall of the transmission shaft, and the driving gear is meshed with the transmission gear.

[0009] A shock absorbing mechanism is connected with the fixing sleeve, and the shock absorbing mechanism is used for shock absorbing the universal wheel and the rotating wheel.

[0010] As a preferred solution of the utility model, the shock absorbing mechanism includes: four connecting rods, four limiting sleeves, four pushing springs, four push rods, four cross plates and four shock absorbing springs;

[0011] Four connecting rods are fixedly connected to the tops of the corresponding fixing sleeves, four limiting sleeves are slidably connected to the outer walls of the corresponding connecting rods, four pushing springs are fixedly connected to the top inner walls of the corresponding limiting sleeves, four push rods are rotatably connected to the front sides of the corresponding connecting rods, four cross plates are rotatably connected to the rear sides of the corresponding push rods, and four shock-absorbing springs are fixedly connected to one side of the corresponding cross plate.

[0012] As a preferred solution of the utility model, the tops of the four limiting sleeves are fixedly connected to the same mounting plate.

[0013] As a preferred solution of the utility model, partitions are symmetrically fixedly connected to the bottom of the mounting plate, and there are two partitions, and the sides of the two partitions away from each other are fixedly connected to the sides corresponding to the four shock-absorbing springs.

[0014] As a preferred solution of the utility model, the bottom of the mounting plate is symmetrically fixedly connected to limit frames, and the number of the limit frames is two, and the two limit frames penetrate the corresponding transverse plates.

[0015] As a preferred solution of the utility model, the inner wall of the limit sleeve is slidably connected to the limit plate, the top of the limit plate is fixedly connected to the bottom of the push spring, and the bottom of the limit plate is fixedly connected to the top of the connecting rod.

[0016] Beneficial effects:

[0017] 1. The motor drives the transmission gear to rotate, so that the driving gear and the transmission shaft rotate, thereby driving the rotating wheel to rotate and move. The universal wheel is used to change the forward direction, and the shock-absorbing mechanism is used to reduce the bumps and shakes caused by the movement of the universal wheel and the rotating wheel.

[0018] 2. The upward movement of the fixed sleeve will push the connecting rod upward, and the connecting rod will slide on the inner wall of the limit sleeve and push the push spring. At the same time, the movement of the connecting rod will push the push rod, and the movement of the push rod will push the cross plate. At this time, the movement of the cross plate will push the shock-absorbing spring, and the shock-absorbing spring and the push spring will cooperate to reduce the impact force;

[0019] The utility model reduces the impact force caused by the jolting and shaking of the robot when it moves through a simple structure, thereby achieving a shock-absorbing effect, effectively preventing the robot from being damaged due to shaking, and has good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1This is a front cross-sectional view of the utility model;

[0021] Figure 2 It is a top sectional view of the utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the connecting rod, the limiting sleeve and the pushing spring of the utility model;

[0023] Figure 4 It is a three-dimensional diagram of the connecting rod and the push rod of the utility model.

[0024] In the figure: 1. Mounting plate; 2. Bottom plate; 3. Fixed sleeve; 4. Connecting shaft; 5. Universal wheel; 6. Transmission shaft; 7. Rotating wheel; 8. Motor; 9. Transmission gear; 10. Driving gear; 11. Connecting rod; 12. Limiting sleeve; 13. Push spring; 14. Push rod; 15. Cross plate; 16. Shock-absorbing spring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example

[0027] Reference Figure 1-Figure 4 , a roller transmission device of a sweeping robot, comprising

[0028] Bottom plate 2;

[0029] A fixed sleeve 3, a connecting shaft 4, a universal wheel 5, a transmission shaft 6, a rotating wheel 7, a motor 8, a transmission gear 9 and a driving gear 10. The number of the fixed sleeves 3 is four, and the four fixed sleeves 3 are fixedly connected to the top of the bottom plate 2 at equal intervals and symmetrically. The outer walls of the connecting shaft 4 and the transmission shaft 6 are rotatably connected to the inner walls of the corresponding fixed sleeves 3. The number of the universal wheels 5 and the rotating wheel 7 are both two, and the two universal wheels 5 and the rotating wheel 7 are rotatably connected to the left and right sides of the connecting shaft 4 and the transmission shaft 6 respectively. The motor 8 is fixedly connected to the top of the bottom plate 2, the transmission gear 9 is fixedly connected to the left side of the output shaft of the motor 8, and the driving gear 10 is fixedly connected to the outer wall of the transmission shaft 6, and the driving gear 10 is meshed with the transmission gear 9;

[0030] The shock absorbing mechanism is connected with the fixing sleeve 3 and is used for absorbing the shock of the universal wheel 5 and the rotating wheel 7.

[0031] By means of the above mechanism: the motor 8 is used to conveniently drive the transmission gear 9 to rotate, so that the driving gear 10 and the transmission shaft 6 rotate, thereby driving the rotating wheel 7 to rotate and move, the universal wheel 5 is used to conveniently change the forward direction, and the shock absorbing mechanism is used to conveniently reduce the bumps and shakes caused by the movement of the universal wheel 5 and the rotating wheel 7.

[0032] As a preferred solution of the utility model, the shock absorbing mechanism includes: four connecting rods 11, four limiting sleeves 12, four pushing springs 13, four pushing rods 14, four cross plates 15 and four shock absorbing springs 16; the four connecting rods 11 are fixedly connected to the top of the corresponding fixing sleeves 3, the four limiting sleeves 12 are slidably connected to the outer wall of the corresponding connecting rods 11, the four pushing springs 13 are fixedly connected to the top inner wall of the corresponding limiting sleeves 12, the four pushing rods 14 are rotatably connected to the front side of the corresponding connecting rods 11, the four cross plates 15 are rotatably connected to the rear side of the corresponding pushing rods 14, and the four shock absorbing springs 16 are fixedly connected to one side of the corresponding cross plate 15, and the upward movement of the fixing sleeve 3 will push the connecting rod 11 to move upward, the connecting rod 11 slides on the inner wall of the limiting sleeve 12 and pushes the pushing spring 13, and at the same time, the movement of the connecting rod 11 will push the pushing rod 14, and the movement of the pushing rod 14 will push the cross plate 15, and at this time, the movement of the cross plate 15 will push the shock absorbing spring 16, and the impact force is reduced by the cooperation of the shock absorbing spring 16 and the pushing spring 13.

[0033] As a preferred solution of the utility model, the tops of the four limiting sleeves 12 are fixedly connected to the same mounting plate 1, and the rotating wheels 7 and the universal wheels 5 can be conveniently mounted on the bottom of the sweeping robot through the mounting plate 1, so as to move the sweeping robot.

[0034] As a preferred solution of the utility model, the bottom of the mounting plate 1 is symmetrically fixedly connected with partitions, and the number of the partitions is two, and the sides of the two partitions away from each other are fixedly connected to the sides corresponding to the four shock-absorbing springs 16, so that the shock-absorbing springs 16 can be conveniently fixed and supported by the partitions.

[0035] As a preferred solution of the utility model, the bottom of the mounting plate 1 is symmetrically fixedly connected to a limiting frame, and the number of the limiting frames is two, and the two limiting frames penetrate the corresponding transverse plates 15. The limiting frames are used to conveniently limit the transverse plates 15 so that the transverse plates 15 can move laterally stably.

[0036] As a preferred solution of the utility model, the inner wall of the limit sleeve 12 is slidably connected to the limit plate, the top of the limit plate is fixedly connected to the bottom of the push spring 13, and the bottom of the limit plate is fixedly connected to the top of the connecting rod 11. The connecting rod 11 is conveniently limited by the limit plate, so that the connecting rod 11 can slide stably and vertically on the inner wall of the limit sleeve 12.

[0037] It should be noted that the specific type of motor 8 to be used is selected by the relevant technical personnel familiar with the field, and the above motor 8 and the like belong to the existing technology and will not be elaborated in this solution.

[0038] The working principle of the utility model is as follows: in actual use, by installing the mounting plate 1 on the bottom of a suitable sweeping robot, by starting the motor 8, the output shaft of the motor 8 rotates to drive the transmission gear 9 to rotate, and the rotation of the transmission gear 9 drives the driving gear 10 to rotate. When the driving gear 10 rotates, the transmission shaft 6 rotates to rotate the rotating wheel 7, and the rotating wheel 7 rotates to generate thrust to drive the sweeping robot to move. The universal wheel 5 is used to conveniently control the direction of movement of the sweeping robot. When the rotating wheel 7 and the universal wheel 5 encounter an obstacle and vibrate, they first rotate. The wheel 7 or the universal wheel 5 will move up and down and drive the corresponding transmission shaft 6 or the connecting shaft 4 to move. When the connecting shaft 4 or the transmission shaft 6 moves, it will drive the fixing sleeve 3 to move. The upward movement of the fixing sleeve 3 will push the connecting rod 11 to move upward. The connecting rod 11 slides on the inner wall of the limiting sleeve 12 and pushes the pushing spring 13. At the same time, the movement of the connecting rod 11 will push the push rod 14, and the movement of the push rod 14 will push the cross plate 15. At this time, the movement of the cross plate 15 will push the shock-absorbing spring 16. The cooperation of the shock-absorbing spring 16 and the pushing spring 13 reduces the impact force, thereby achieving the shock-absorbing effect.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A roller transmission device for a sweeping robot, characterized in that: include Bottom plate (2); A fixed sleeve (3), a connecting shaft (4), a universal wheel (5), a transmission shaft (6), a rotating wheel (7), a motor (8), a transmission gear (9) and a driving gear (10), wherein the number of the fixed sleeves (3) is four, and the four fixed sleeves (3) are fixedly connected to the top of the bottom plate (2) at equal intervals and symmetrically, the outer walls of the connecting shaft (4) and the transmission shaft (6) are rotatably connected to the inner wall of the corresponding fixed sleeve (3), the number of the universal wheels (5) and the rotating wheel (7) are both two, and the two universal wheels (5) and the rotating wheel (7) are rotatably connected to the left and right sides of the connecting shaft (4) and the transmission shaft (6), respectively, the motor (8) is fixedly connected to the top of the bottom plate (2), the transmission gear (9) is fixedly connected to the left side of the output shaft of the motor (8), the driving gear (10) is fixedly connected to the outer wall of the transmission shaft (6), and the driving gear (10) is meshed with the transmission gear (9); A shock absorbing mechanism is connected to the fixing sleeve (3), and the shock absorbing mechanism is used to reduce the shock of the universal wheel (5) and the rotating wheel (7).

2. The roller transmission device of a sweeping robot according to claim 1, characterized in that: The shock absorbing mechanism comprises: four connecting rods (11), four limiting sleeves (12), four pushing springs (13), four pushing rods (14), four transverse plates (15) and four shock absorbing springs (16); Four connecting rods (11) are fixedly connected to the top of the corresponding fixing sleeve (3), four limiting sleeves (12) are slidably connected to the outer wall of the corresponding connecting rod (11), four pushing springs (13) are fixedly connected to the top inner wall of the corresponding limiting sleeve (12), four pushing rods (14) are rotatably connected to the front side of the corresponding connecting rod (11), four horizontal plates (15) are rotatably connected to the rear side of the corresponding pushing rod (14), and four shock absorbing springs (16) are fixedly connected to one side of the corresponding horizontal plate (15).

3. The roller transmission device of a sweeping robot according to claim 1, characterized in that: The tops of the four limiting sleeves (12) are fixedly connected to the same mounting plate (1).

4. The roller transmission device of a sweeping robot according to claim 3, characterized in that: The bottom of the mounting plate (1) is symmetrically fixedly connected with partitions, and the number of the partitions is two, and the sides of the two partitions that are away from each other are fixedly connected to the sides corresponding to the four shock absorbing springs (16).

5. The roller transmission device of a sweeping robot according to claim 3, characterized in that: The bottom of the mounting plate (1) is symmetrically fixedly connected to a limiting frame, and the number of the limiting frames is two, and the two limiting frames penetrate the corresponding transverse plates (15).

6. The roller transmission device of a sweeping robot according to claim 2, characterized in that: The inner wall of the limiting sleeve (12) is slidably connected to a limiting plate, the top of the limiting plate is fixedly connected to the bottom of the push spring (13), and the bottom of the limiting plate is fixedly connected to the top of the connecting rod (11).

Images