Adjustable desks and chairs for audiovisual classrooms
The present invention relates to adjustable desks and chairs for audiovisual classrooms. It comprises a turntable, at least a desk and at least a chair. The turntable is installed on the floor of an audiovisual classroom. The desk is installed on the turntable. The chair is installed on the turntable and in proximity to the desk. The turntable can rotate the desk and the chair together to any desired angle, thereby increasing the convenience of using an audiovisual classroom.
1. A rotatable device with adjustable desks and chairs for audiovisual classrooms, comprising:
a plurality of turntables fully installed on a plurality of recesses provided on a floor, whereby each turntable is installed in a respective recess, the turntables comprising:
a stator installed in each of the recesses of the floor;
a rotor installed above each of the stators respectively, the chairs and the desks installed on the rotors, respectively; and
a slider installed between each of the rotors and the stators respectively;
a desk directly and fixedly installed on each of the plurality of turntables; and
a chair directly and fixedly installed on each of the plurality of turntables, and the chair on each turntable being disposed in proximity to a corresponding desk thereon, each of the turntables rotating together with a respective chair and corresponding desk fixedly installed thereon, one of the chairs and one of the desks installed on one of the turntables facing one direction;
wherein the chairs and the desks are separate from each other, the plurality of turntables being rotatable to selected orientations and dividable into groups wherein each group faces a common location, the turntables of each group being rotated to a common selected orientation such that each chair of the group faces the selected common location.
2. The rotatable device with adjustable desks and chairs for audiovisual classrooms in accordance with claim 1 , wherein each of the sliders consists of a plurality of balls; a groove is provided on a top side of said stator; another groove is provided on a bottom side of said rotor which matches said groove on the top side of said stator, and the balls held between said two grooves.
3. The rotatable device with adjustable desks and chairs for audiovisual classrooms in accordance with claim 1 , wherein said slider comprises: a first rim installed under said rotor and a plurality of wheels installed outside said first rim, said stator defining a second rim and said first rim being located inside said second rim.
4. The rotatable device with adjustable desks and chairs for audiovisual classrooms in accordance with claim 1 , further comprising:
a plurality of driving devices, each of the plurality of driving devices being installed in contact with a respective one of the plurality of turntables.
5. The rotatable device with adjustable desks and chairs for audiovisual classrooms in accordance with claim 4 , wherein said driving device comprises a motor, said motor driving said rotor by gears or chain.
6. The rotatable device with adjustable desks and chairs for audiovisual classrooms in accordance with claim 4 , further comprising a controlling device, said controlling device being connected to said driving device electrically.
7. The rotatable device with adjustable desks and chairs for audiovisual classrooms in accordance with claim 1 , further comprising a plurality of connection ports installed on the turntables.
8. The rotatable device with adjustable desks and chairs for audiovisual classrooms in accordance with claim 7 , wherein one of said connection ports is a power connection port.
9. The rotatable device with adjustable desks and chairs for audiovisual classrooms in accordance with claim 7 , wherein said connection ports include signal connection ports.
10. The rotatable device with adjustable desks and chairs for audiovisual classrooms in accordance with claim 9 , wherein one of said signal connection ports is a network signal connection port.
11. The rotatable device with adjustable desks and chairs for audiovisual classrooms in accordance with claim 9 , wherein said signal connection ports include a video signal connection port.
12. The rotatable device with adjustable desks and chairs for audiovisual classrooms in accordance with claim 9 , wherein one of said signal connection ports is an audio signal connection port.