Automatic blackboard raising/lowering device
An automatic lifting and blackboard technology, applied in lifting devices, reusable writing boards, printing, etc., can solve the problems of heavy weight, inconvenient production, and inability to adjust height, etc., to achieve the effect of reducing noise and facilitating operation
Inactive Publication Date: 2015-10-28
李揆兴
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Problems solved by technology
[0002] If it is possible to automatically control the blackboard or the bulletin board to the desired height so that the educator does not need to bend or tiptoe to write, then the hard work of writing can be reduced, and the blackboard can also be raised so that the students behind can see it, but as the present All technologies require high power, are noisy, and are complicated to manufacture, so they have not been commercialized
[0003] Moreover, the blackboard lifting device in the prior art is heavy because the blackboard frame is combined with audio-visual facilities such as multi-vision and various auxiliary blackboards, etc., so the writing board in the central part is only manually adjusted for lifting, and the operation is inconvenient And it cannot be adjusted to the desired height, and the existing automatic method produces a lot of noise when driving and is unwilling to use, and it is not convenient to manufacture, so it has not been commercialized
Method used
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[0027] In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments of the present invention can be transformed into various forms, and the scope of the present invention is not limited to the embodiments described below. This embodiment is provided to explain the present invention in detail to those skilled in the art. Therefore, the shapes and the like of elements in the drawings may be shown enlarged for accurate description. In the respective figures, the same reference numerals are attached to the same components. A detailed description of well-known functions and configurations that may obscure the gist of the present invention is omitted.
[0028] figure 1 As the basic frame of the present invention, it shows the front view and side view of the assembled unit. All the structures except the main driving part are the basic frame and assembled into a unit...
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A blackboard raising / lowering device of the present invention is a blackboard raising / lowering device capable of raising or lowering a blackboard frame (78), the device comprising: a plurality of link arms (31, 32, 65) hinge-coupled to each other; screw shafts (35, 66) screw-coupled with at least one link arm among the plurality of link arms (31, 32, 65) so as to raise / lower at least one of the link arm; and a motor (40) for driving the screw shafts. Accordingly, the present invention: enables a user to safely and conveniently operate a terminal box since an entire blackboard frame, which is heavy, having an integrated structure of the blackboard and various functions is provided to be highly efficient and to have a reduction in noise according to the operation thereof; and has a simple structure so as to be easily produced.
Description
technical field [0001] The invention relates to an automatic blackboard lifting device, which can automatically lift the overall frame of the blackboard to a specified height when using an educational blackboard or a bulletin board, so that educators can write at a desired height, and can be seen clearly at a distance. Background technique [0002] If it is possible to automatically control the blackboard or the bulletin board to the desired height so that the educator does not need to bend or tiptoe to write, then the hard work of writing can be reduced, and the blackboard can also be raised so that the students behind can see it, but as the present All of these technologies require high power, are noisy, and are complicated to manufacture, so they have not been commercialized. [0003] Moreover, the blackboard lifting device in the prior art is heavy because the blackboard frame is combined with audio-visual facilities such as multi-vision and various auxiliary blackboards...
Claims
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IPC IPC(8): B43L1/04A47B97/04
CPCA47B97/04B43L1/04B66F3/08
Inventor 李揆兴
Owner 李揆兴