Floor cleaner with a movably mounted suction mouth
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Solution Overview
Problem
Existing vacuum cleaners face challenges in effectively positioning the suction nozzle to avoid obstructing the horizontal entry of coarse dirt or foreign objects. The suction nozzle should be positioned at a predetermined distance from the floor surface to avoid obstructing the horizontal entry of coarse dirt or foreign objects. However, the distance should also not be too great, so that the airflow can be used efficiently to pick up dirt. Rigid attachment can cause collisions with obstacles, while vertical mobility can result in inappropriate distance from the floor surface.
Innovation Solution
A movable suction mechanism is provided with a suction nozzle mounted at the front left and right, allowing tilting, pivoting, and vertical movement, but preventing longitudinal movement, with elastic elements to maintain a predetermined position and guide the nozzle along the floor surface, enhancing dirt pickup and preventing obstruction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the suction nozzle is rigidly attached to the chassis, then the structural stability is improved, but the suction nozzle may collide with obstacles and impede the movement of the floor vacuum
Solution Approach 1:
The suction nozzle is mounted on a movable carriage that can move vertically along guide rails and rotate about pins, transforming the rigid structure into a dynamic system. This allows the suction nozzle to adapt its position and orientation in response to obstacles and floor variations, preventing collisions and maintaining movement capability while preserving structural stability through controlled degrees of freedom
2Productivity
If the suction nozzle is positioned close to the floor surface, then the dirt pickup efficiency is improved, but the horizontal entry of coarse dirt or foreign objects may be obstructed
Solution Approach 1:
The suction nozzle's vertical position is dynamically adjusted through the movable carriage mechanism, allowing it to maintain an optimal distance from the floor surface. The system can adapt the nozzle height in real-time to balance efficient dirt pickup with unobstructed entry for coarse materials, resolving the contradiction between proximity-based efficiency and material handling capability
3Use of energy by moving object
If the suction nozzle is positioned at a predetermined distance from the floor surface, then the airflow efficiency is improved, but the suction nozzle may not effectively track uneven terrain
Solution Approach 1:
The movable carriage with vertical translation capability along guide rails enables the suction nozzle to dynamically adjust its height and maintain optimal airflow efficiency while tracking uneven terrain. The system preserves energy-efficient airflow conditions by adapting the nozzle position to follow floor variations, resolving the contradiction between fixed-distance efficiency and terrain adaptability
4Adaptability or versatility
If the suction nozzle is made vertically movable, then the adaptability to obstacles is improved, but the distance to the floor surface may become too small or too large
Solution Approach 1:
The movable carriage mechanism with guide rails and pins provides controlled vertical movement and rotational freedom, enabling the suction nozzle to adapt to obstacles while maintaining precise position control. The mechanical constraints of the guide system ensure that the nozzle remains within an optimal distance range from the floor surface, preventing excessive deviation while preserving obstacle adaptability
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The suction nozzle maintains effective dirt pickup and avoids getting stuck on edges or digging into soft surfaces by allowing flexible movement and precise guidance over uneven terrain, improving cleaning efficiency.
Implementation Method 1
an elastic element can be provided to press a rear end of the suction nozzle into a predetermined vertical position relative to the chassis
Implementation Method 2
a suction mechanism that creates an airflow through a suction nozzle attached to the vacuum cleaner's chassis
Data Source
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AI summary
A floor vacuum cleaner (100) for cleaning a floor surface (115) comprises a chassis (105) with a running gear (110) for driving on the floor surface (115); a suction nozzle (120) for introducing an airflow in the area of the floor surface (115); wherein the suction nozzle (120) is mounted in the direction of travel (140) at the front left and right each by means of an arrangement of a pin (240) and a guide (245) relative to the chassis (105) in such a way that tilting of the suction nozzle (120) about the pins (240), rotation of the suction nozzle (120) about a longitudinal axis (210) and vertical movement of the suction nozzle (120) are enabled, but movement of the suction nozzle (120) in the longitudinal direction of the chassis (105) is prevented.