CN219349637U

CN219349637U - Blackboard structure device capable of preventing chalk dust

Info

Publication number: CN219349637U
Application number: CN202223282224.5U
Authority: CN
Inventors: 李清波; 康鹏; 李瑞瑞
Original assignee: Shandong Lanbei Yishu Information Technology Co ltd; Shandong Lanbeisite Educational Equipment Group
Current assignee: Shandong Lanbei Yishu Information Technology Co ltd; Shandong Lanbeisite Educational Equipment Group
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-07-14
Anticipated expiration: 2032-12-05

Abstract

The utility model belongs to the technical field of infrared touch electronic blackboards, and particularly relates to a blackboard structure device capable of preventing chalk dust, which comprises: the blackboard face is vertically arranged, and the tail end of the blackboard face is connected with the lower frame of the blackboard; the infrared filter strip is arranged on the lower frame of the blackboard close to the blackboard surface side; the miniature vibrator is arranged between the blackboard surface and the lower frame of the blackboard. According to the utility model, through improvement on the blackboard structure, the included angle between the surface of the filter strip and the blackboard surface is increased, so that the chalk dust can slide freely; the miniature vibrator is additionally arranged, so that chalk dust can slide downwards more easily.

Description

Blackboard structure device capable of preventing chalk dust

Technical Field

The utility model belongs to the technical field of infrared touch electronic blackboards, and particularly relates to a blackboard structure device capable of preventing chalk dust.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

Handwriting data can be transmitted to display equipment (a large screen integrated machine or computer projection and the like) connected with the blackboard when writing on a panel of the electronic interconnection blackboard with an infrared touch technology, so that the functions of synchronous transmission display, note record storage and the like of the writing handwriting are realized; however, when chalk is written on the blackboard surface or the blackboard eraser erases handwriting, chalk dust falls on the frame of the blackboard, when the chalk dust falls on the surface of the infrared filter strip, the infrared light transmission effect can be affected, the infrared circuit board is caused to detect infrared signals abnormally, the infrared light transmission strip of the lower frame is shielded by the chalk dust, the infrared touch induction is seriously affected, handwriting cannot be identified when the infrared touch induction is serious, the handwriting cannot be transmitted, the chalk dust is manually cleaned, and the normal use efficiency of the blackboard is affected.

Disclosure of Invention

In order to solve the problems, the utility model provides a blackboard structure device capable of preventing chalk dust, which realizes free sliding of the chalk dust and enhances experience through improving the blackboard structure.

According to some embodiments, the present utility model provides a blackboard structure device capable of preventing chalk dust, which adopts the following technical scheme:

a blackboard structure device capable of preventing chalk dust, comprising:

the blackboard face is vertically arranged, and the tail end of the blackboard face is connected with the lower frame of the blackboard;

the infrared filter strip is arranged on the lower frame of the blackboard close to the blackboard surface side;

the miniature vibrator is arranged between the blackboard surface and the lower frame of the blackboard;

the lower blackboard frame comprises a first lower blackboard frame and a second lower blackboard frame; the first blackboard lower frame is obliquely arranged, and the second blackboard lower frame is horizontally arranged.

As one or more embodiments, the infrared filter strip is disposed on the first blackboard lower frame far from the second blackboard lower frame.

As one or more embodiments, a closed space is formed among the first blackboard lower frame, the second blackboard lower frame and the blackboard surface, and an infrared circuit board is arranged in the closed space.

Further, a miniature vibrator electrically connected with the infrared circuit board is arranged below the infrared circuit board.

Further, the infrared circuit board is electrically connected with the infrared filter strip.

Further, two ends of the infrared circuit board are respectively connected with the blackboard face and the first blackboard lower frame.

Further, the miniature vibrator is respectively connected with the first blackboard lower frame, the second blackboard lower frame and the infrared circuit board.

Further, a power supply which is respectively and electrically connected with the infrared circuit board, the infrared filter strip and the miniature vibrator is also arranged in the closed space.

As one or more embodiments, the resonance frequency of the infrared filter strip is consistent with the vibration frequency of the miniature vibrator.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, through improvement on the blackboard structure, the included angle between the surface of the filter strip and the blackboard surface is increased, so that the chalk dust can slide freely; the miniature vibrator is additionally arranged, so that chalk dust is easier to slide downwards, and experience is enhanced.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

FIG. 1 is a schematic diagram of a prior art blackboard;

fig. 2 is a schematic structural view of a blackboard structure device capable of preventing chalk dust in an embodiment of the utility model;

wherein, 1, blackboard face, 2, infrared filter strip, 3, infrared circuit board, 4, blackboard lower frame, 5, miniature electromagnetic shaker.

Detailed Description

The utility model will be further described with reference to the drawings and examples.

It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

In the present utility model, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. refer to an orientation or a positional relationship based on that shown in the drawings, and are merely relational terms, which are used for convenience in describing structural relationships of various components or elements of the present utility model, and do not denote any one of the components or elements of the present utility model, and are not to be construed as limiting the present utility model.

In the present utility model, terms such as "fixedly attached," "connected," "coupled," and the like are to be construed broadly and refer to either a fixed connection or an integral or removable connection; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the terms in the present utility model can be determined according to circumstances by a person skilled in the relevant art or the art, and is not to be construed as limiting the present utility model.

Examples

The embodiment of the utility model provides a blackboard structure device capable of preventing chalk dust.

As the existing infrared interconnection blackboard structure shown in FIG. 1, the blackboard surface 1 and the infrared filter strip 2 are vertically arranged, so that chalk dust falling during writing on the blackboard surface 1 is accumulated on the surface of the infrared filter strip 2, the infrared filter strip 2 is further shielded, the light transmission effect of the infrared filter strip 2 is seriously influenced, infrared signal detection of the infrared filter strip 2 by the infrared circuit board 3 is abnormal, infrared touch induction is seriously influenced, handwriting recognition and transmission display failure even is caused, the chalk dust is required to be manually cleaned, and the use efficiency is low.

To solve this problem, the present embodiment provides a blackboard structure device capable of preventing chalk dust as shown in fig. 2, comprising a blackboard surface 1, an infrared filter strip 2, an infrared circuit board 3, a blackboard lower frame 4 and a miniature vibrator 5;

specifically, the blackboard surface 1 is vertically arranged, and the tail end of the blackboard surface is connected with the lower frame 4 of the blackboard; the blackboard lower frame 4 includes a first blackboard lower frame in an inclined arrangement (note that the inclined arrangement here is not a vertical arrangement) and a second blackboard lower frame in a horizontal arrangement;

the infrared filter strip 2 is arranged on the lower blackboard frame 4 close to the side of the blackboard surface 1, namely on the first lower blackboard frame far away from the second lower blackboard frame;

the miniature vibrator 5 is arranged between the blackboard surface 1 and the blackboard lower frame 4, and the miniature vibrator 5 is respectively connected with the first blackboard lower frame, the second blackboard lower frame and the infrared circuit board 3;

the infrared circuit board 3 is arranged in a closed space formed among the first blackboard lower frame, the second blackboard lower frame and the blackboard surface 1 and is positioned above the miniature vibrator 5; the infrared circuit board 3 is respectively and electrically connected with the miniature vibrator 5 and the infrared filter strip 2; the two ends of the infrared circuit board 3 are respectively connected with the blackboard surface 1 and the lower frame of the first blackboard.

As one or more embodiments, a power supply electrically connected with the infrared circuit board 3, the infrared filter strip 1 and the miniature vibrator 5 is also arranged in the closed space formed among the first blackboard lower frame, the second blackboard lower frame and the blackboard surface 1; the power source may be a lithium battery or a lead battery.

In the embodiment, the included angle between the infrared filter strip 2 and the blackboard surface 1 is increased so as to facilitate the chalk dust to slide downwards along the infrared filter strip 2, and meanwhile, the miniature vibrator 5 is arranged, so that the vibration frequency of the miniature vibrator 5 is as close to the resonance frequency of the infrared filter strip 2 as possible, and the chalk dust can slide downwards more easily; the miniature vibrator 5 is controlled by the infrared circuit board 3 to realize start and stop of control work, and the miniature vibrator 5 can be started and stopped at regular time according to the writing time detected by the infrared circuit board 3.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

While the foregoing description of the embodiments of the present utility model has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the utility model, but rather, it is intended to cover all modifications or variations within the scope of the utility model as defined by the claims of the present utility model.

Claims

1. A blackboard structure device capable of preventing chalk dust, comprising:

2. A blackboard structure device for preventing chalk dust as claimed in claim 1, wherein said infrared filter strip is provided on a first lower blackboard frame remote from said second lower blackboard frame.

3. The blackboard structure device for preventing chalk dust as claimed in claim 1, wherein a closed space is formed among said first blackboard lower frame, said second blackboard lower frame and said blackboard surface, and an infrared circuit board is disposed in said closed space.

4. A blackboard structure device for preventing chalk dust as claimed in claim 3, characterized in that a miniature vibrator is provided under said infrared circuit board and electrically connected to said infrared circuit board.

5. A blackboard structure device for preventing chalk dust as claimed in claim 3, wherein said infrared circuit board is electrically connected to said infrared filter strip.

6. A blackboard structure device capable of preventing chalk dust as claimed in claim 3, wherein two ends of said infrared circuit board are respectively connected with said blackboard surface and said first blackboard lower frame.

7. A blackboard structure device for preventing chalk dust as claimed in claim 3, wherein said miniature vibrator is connected to said first blackboard lower frame, said second blackboard lower frame and said infrared circuit board, respectively.

8. A blackboard structure device for preventing chalk dust as claimed in claim 3, wherein a power source is further provided in said enclosed space, electrically connected to said infrared circuit board, said infrared filter strip and said miniature vibrator, respectively.

9. A blackboard structure device for preventing chalk dust as claimed in claim 1, wherein the resonance frequency of said infrared filter strip is consistent with the vibration frequency of said miniature vibrator.