Floor mopping robot with position limiting rotational structure

Abstract

The invention relates to a home-use cleaning electric appliance, in particular to a floor mopping robot with a position limiting rotational structure. The floor mopping robot comprises a base body, abase, a traction unit and a guide wheel arranged on a bias voltage device, wherein an installing cavity is arranged on the base; a rotating shaft is arranged in the installing cavity; the bias voltagedevice is arranged in the installing cavity and rotates relative to the rotating shaft; a position limiting slide groove is formed in one of the installing cavity and the bias voltage device; a corresponding standstill locking part is arranged on the other one of the installing cavity and the bias voltage device; and the bias voltage device rotates around the rotating shaft in the position limiting rotational structure formed by the position limiting slide groove and the standstill locking part, wherein the center of the rotating shaft is used as a circle center, and the rotational angle of the bias voltage device is alpha, and is greater than 0 degree and smaller than 180 degrees. The floor mopping robot involved in the invention has the position limiting rotational structure for limiting the guide wheel to rotate 180 degrees, so that the base of the floor mopping robot cannot have an inclination state that the back end is low and the front end is high; and therefore, a stable advancing function of the floor mopping robot can be ensured.

Description

Technical field [0001] The invention relates to a household cleaning electrical appliance, in particular to a sweeping robot with a limit rotation structure. Background technique [0002] There is an invention patent application with the patent application number CN201480016918.3 and the invention title "Mobile Robot". The patent application discloses a mobile robot for floor cleaning, including a base, a body, a roughly circular outer cover and a separating device, as well as a traction unit installed at the front of the base and a biasing device installed at the rear of the base. The device is installed in the alcove of the base. Because the biasing device has a predetermined force, the guide wheel can be biased into the unfolded position. During the climbing process, the guide wheel can be partially stored in the alcove to realize a mobile robot Able to walk and clean under different road conditions. [0003] At the same time, the patent application also discloses a structure ...

AI Technical Summary

Problems solved by technology

But at the same time, because the guide wheel has rotated 180°, the horizontal distance from the guide wheel to the central axis of the sweeping robot is obviously smaller than the distance when it is moving forward normally. According to the principle of leverage, the torque decreases and the pressure increases, and the bias device receives The pressure increases, which will drive the guide wheel and store part of it in the alcove, forming a tilted state in which the height of the rear of the base of the sweeping robot is lowered and the front is raised, such as figure 2 As shown, especially when the sweeping robot retreats to low-level ground obstacles such as carpets or floor mats on the ground, it will hinder the sweeping robot from retreating accordingly, and the sweeping robot may be stuck and unable to move

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