Multifunctional sweeper robot corner collision shell protection device

Abstract

The application discloses a multifunctional sweeper robot corner collision shell protection device, which comprises a shell, driving wheels and a guide wheel, two driving wheels are arranged at the back of the shell, the guide wheel is arranged at the middle of the front of the shell, a first collision box and a second collision box are movably arranged on the two sides of the front of the shell, the two sides of the first collision box and the second collision box are connected with the shell through springs, the first collision box and the second collision box protrude from the side walls of the shell in the natural state of the springs, a plurality of collision wheels are rotatably arranged in the first collision box and the second collision box, and the collision wheels protrude from the side walls of the corresponding first collision box or second collision box. Compared with the prior art, the application can timely turn after collision and reduce the damage caused by collision.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a multifunctional sweeper robot corner collision shell protection device. BACKGROUND

[0002] In the prior art, after the sweeper robot senses a collision through a collision sensor, the sweeper robot is controlled to turn to avoid obstacles. However, the sweeper robot and the object may be bumped or scratched when the sweeper robot collides with the object and turns, and when the sensor fails, the sweeper robot continuously colliding with the object may also cause a safety accident.

[0003] Therefore, it is necessary to provide a multifunctional sweeper robot corner collision shell protection device to solve the problems raised in the background. SUMMARY

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a multifunctional sweeper robot corner collision shell protection device, comprising a shell, a drive wheel and a guide wheel, two drive wheels are arranged at the rear of the shell, the guide wheel is arranged at the middle of the front of the shell, a first collision box and a second collision box are movably arranged on both sides of the front of the shell, the two sides of the first collision box and the second collision box are connected with the shell through springs, and the first collision box and the second collision box protrude from the side wall of the shell in the natural state of the springs, a plurality of collision wheels are rotatably arranged in the first collision box and the second collision box, and the collision wheels protrude from the side wall of the corresponding first collision box or second collision box.

[0005] Further, as a preferred, a friction ring is rotatably arranged along the edge in the shell, and a friction wheel is arranged below each collision wheel.

[0006] Further, as a preferred, a gear ring is arranged on the inner wall of the friction ring, and a driving device is arranged in the shell to drive the friction ring to rotate.

[0007] Further, as a preferred, the corresponding collision wheel of the first collision box is fixedly connected with the friction wheel in a concentric manner, and the corresponding collision wheel of the second collision box is eccentrically connected with the friction wheel through a transmission gear set.

[0008] Further, as a preferred, a connecting rod is hingedly connected to the inner side of the first collision box or the second collision box, and the other end of the connecting rod is hingedly connected to a tab, and the tab is connected to the rotating shaft of the guide wheel.

[0009] Further, as a preferred, each tab is connected with the guide wheel through a ratchet steering gear, and the ratchet steering gear can transmit torque in one direction.

[0010] Further, as a preferred, a soft rubber sleeve is sleeved on the surface of the collision wheel.

[0011] Compared with the prior art, the present application has the following advantages:

[0012] In the present application, when the first or second collision box is subjected to a collision, the compression spring causes the corresponding friction wheel to fit into the friction ring, thereby causing the friction ring to drive the friction wheel to rotate, and the direction of rotation of the friction ring causes the collision wheel to drive the sweeper robot to rotate in the opposite direction of the collision side, while the connecting rod pushes the paddle to cause the guide wheel to rotate in the opposite direction of the collision side, thereby enabling the sweeper robot to tilt in time, so as to enable the sweeper robot to turn in time after a collision, thereby reducing the damage caused by the collision. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a structural schematic view of a multifunctional sweeper robot corner collision shell protection device.

[0014] Figure 2 It is a structural schematic view of a second collision box.

[0015] In the figure: 1, shell; 2, drive wheel; 3, guide wheel; 4, first collision box; 5, second collision box; 6, spring; 7, collision wheel; 8, friction ring; 9, drive device; 10, friction wheel; 11, transmission gear set; 12, ratchet wheel steering gear; 13, paddle; 14, connecting rod. DETAILED DESCRIPTION

[0016] Please refer to Figure 1 and Figure 2 In the present application, a multifunctional sweeper robot corner collision shell protection device comprises a shell 1, drive wheels 2, and guide wheels 3. Two drive wheels 2 are arranged at the rear of the shell 1. The guide wheels 3 are arranged at the front middle part of the shell 1. First collision boxes 4 and second collision boxes 5 are movably arranged on both sides of the front of the shell 1. The first and second collision boxes 4 and 5 are connected to the shell 1 through springs 6. In the natural state, the first and second collision boxes 4 and 5 protrude from the side walls of the shell 1. A plurality of collision wheels 7 are rotatably arranged in the first and second collision boxes 4 and 5. The collision wheels 7 protrude from the side walls of the corresponding first or second collision boxes 4 and 5. The collision wheels 7 can reduce friction when the sweeper robot turns after a collision, thereby avoiding scratching objects.

[0017] In the present embodiment, a friction ring 8 is rotatably arranged along the edge in the shell 1. Each collision wheel 7 is provided with a friction wheel 10. In the natural state, the friction wheel 10 has a certain spacing from the friction ring 8. When the first or second collision box 4 or 5 is subjected to a collision, the compression spring 6 causes the corresponding friction wheel 10 to fit into the friction ring 8, thereby causing the friction ring 8 to drive the friction wheel 10 to rotate, so as to enable the sweeper robot to turn in time after a collision, thereby reducing the damage caused by the collision.

[0018] In the embodiment, the inner wall of the friction ring 8 is provided with a gear ring, and the housing 1 is provided with a driving device 9 capable of driving the friction ring 8 to rotate.

[0019] In the embodiment, the corresponding collision wheel 7 of the first collision box 4 is fixedly connected with the friction wheel 10 in a concentric manner, and the corresponding collision wheel 7 of the second collision box 5 is eccentrically connected with the friction wheel 10 through a transmission gear set 11. That is to say, when the friction ring 8 continuously rotates in one direction, the rotating directions of the corresponding collision wheels 7 of the first collision box 4 and the second collision box 5 driven by the friction ring 8 are opposite, and the rotating direction of the friction ring 8 makes the collision wheel 7 drive the sweeping robot to rotate in a direction opposite to the collision side.

[0020] In the embodiment, the inner side of the first collision box 4 or the second collision box 5 is respectively hingedly connected with a connecting rod 14, the other end of the connecting rod 14 is respectively hingedly connected to a push piece 13, and the push piece 13 is connected to the rotating shaft of the guide wheel 3. When the first collision box 4 or the second collision box 5 collides, the guide wheel 3 can be driven to rotate in a direction opposite to the collision side.

[0021] In the embodiment, each push piece 13 is connected with the guide wheel 3 through a ratchet steering gear 12, and the ratchet steering gear 12 can drive torque in one direction. Thus, the push piece 13 can push the guide wheel 3 to change direction, and the guide wheel 3 cannot drive the push piece 13 to change direction, so as to avoid hindering the turning function of the sweeping robot (turning is generated by the differential of the two driving wheels 2).

[0022] In the embodiment, the surface of the collision wheel 7 is sleeved with a soft rubber sleeve. Thus, the collision wheel 7 can reduce the collision or scratch of objects, and increase the friction force of the rotation of the collision wheel 7.

[0023] In specific implementation, when the sweeping robot is running, the driving device 9 drives the friction ring 8 to idle, when the first collision box 4 or the second collision box 5 collides, the corresponding spring 6 is compressed, and the friction wheel 10 is attached to the friction ring 8 to drive the corresponding collision wheel 7 to rotate in a direction opposite to the collision side, while the connecting rod 14 pushes the push piece 13 to make the guide wheel 3 rotate in a direction opposite to the collision side, so that the sweeping robot can tilt in time, reduce the collision force with the object, and protect the sweeping robot and the object.

[0024] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A multifunctional sweeper robot corner collision shell protection device, comprising a shell (1), a drive wheel (2), a guide wheel (3), characterized in that, Two said drive wheels (2) are arranged at the rear of the shell (1), the guide wheel (3) is arranged at the front middle of the shell (1), the first collision box (4) and the second collision box (5) are movably arranged at the both sides of the front of the shell (1), the both sides of the first collision box (4) and the second collision box (5) are connected with the shell (1) through the spring (6), and the spring (6) is protruded from the side wall of the shell (1) in the natural state of the first collision box (4) and the second collision box (5), a plurality of collision wheels (7) are rotatably arranged in the first collision box (4) and the second collision box (5), and the collision wheel (7) is protruded from the side wall of the corresponding first collision box (4) or second collision box (5); A friction ring (8) is rotatably arranged along the edge in the shell (1), a friction wheel (10) is arranged below each collision wheel (7), and the friction wheel (10) has a certain spacing with the friction ring (8) in the natural state of the spring (6), when the first collision box (4) or the second collision box (4) is collided, the spring (6) is compressed to make the corresponding friction wheel (10) adhere to the friction ring (8), so that the friction ring (8) drives the friction wheel (10) to rotate; The corresponding collision wheel (7) of the first collision box (4) is fixedly connected with the friction wheel (10) concentrically, and the corresponding collision wheel (7) of the second collision box (5) is eccentrically connected with the friction wheel (10) through a transmission gear set (11); The inner sides of the first collision box (4) and the second collision box (5) are respectively hinged with a connecting rod (14), the other end of the connecting rod (14) is respectively hinged into a tab (13), and the tab (13) is connected to the rotating shaft of the guide wheel (3).

2. The multi-functional robotic sweeper corner collision shell protection device of claim 1, wherein, A gear ring is arranged on the inner wall of the friction ring (8), and a driving device (9) for driving the friction ring (8) to rotate is arranged in the shell (1).

3. The multi-functional robotic sweeper corner collision shell protection device of claim 1, wherein, Each tab (13) is connected with the guide wheel (3) through a ratchet steering gear (12), and the ratchet steering gear (12) can drive torque in one direction.

4. The multi-functional robotic sweeper corner collision shell protection device of claim 1, wherein, The surface of the collision wheel (7) is sleeved with a soft rubber sleeve.

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