Multifunctional blackboard

Abstract

The utility model relates to a multifunctional blackboard which comprises a blackboard frame, an electronic display screen is arranged in the middle of the front face of the blackboard frame, and fixed blackboards located in front of the blackboard frame are arranged on the left side and the right side of the electronic display screen. Movable blackboards used for sliding left and right between the front of the electronic display screen and the front of the fixed blackboard are arranged in front of the fixed blackboard, blackboard erasers are connected to the front of the movable blackboards and the front of the fixed blackboard in a left-right sliding fit mode, the blackboard erasers vertically extend, and dust accumulation boxes are arranged at the bottoms of the blackboard erasers. The blackboard has the functions of blackboard writing and electronic teaching, in order to prevent the electronic display screen from occupying the blackboard writing area, the blackboard is designed into the fixed blackboard and the movable blackboard, when the electronic display screen is not needed, the movable blackboard covers the electronic display screen, and blackboard writing is facilitated; when the electronic display screen needs to be used, the movable blackboard can move to expose the electronic display screen, and electronic teaching is facilitated.

Description

Technical Field

[0001] The utility model relates to a multifunctional blackboard. Background Art

[0002] Blackboards have been widely used in teaching scenarios. Currently, blackboards on the market generally have a simple structure and a single function. They only have the function of writing on the blackboard and cannot realize electronic teaching through the screen. If electronic teaching is required, an electronic display screen can only be added. The added electronic display screen and the blackboard are set independently of each other, and the two cannot be integrated, which is inconvenient to use and takes up space. Utility Model Content

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a multifunctional blackboard.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a multifunctional blackboard, including a blackboard frame, an electronic display screen is arranged in the front middle part of the blackboard frame, fixed blackboards located in front of the blackboard frame are arranged on the left and right sides of the electronic display screen, and a movable blackboard is arranged in front of the fixed blackboard for sliding left and right between the front of the electronic display screen and the front of the fixed blackboard. The front of the movable blackboard and the fixed blackboard are connected with a blackboard eraser for sliding left and right, and the blackboard erasers extend vertically and are provided with dust boxes at the bottom.

[0005] Preferably, the blackboard frame is in a rectangular shape, the electronic display screen and the fixed blackboard are installed inside the blackboard frame, and the electronic display screen is flush with the fixed blackboard and the front of the blackboard frame.

[0006] Preferably, guide grooves extending left and right are provided on the upper and lower sides of the front of the fixed blackboard, and first guide wheels are provided inside the guide grooves. A connecting shaft is connected to the first guide wheel, and the connecting shaft passes through an axial hole opened on the movable blackboard, and the front end portion of the connecting shaft is screwed and fastened with a butterfly nut located in front of the movable blackboard.

[0007] Preferably, the connecting shaft is a square shaft, the shape of the shaft hole is adapted to the shape of the connecting shaft, the shaft hole of the left movable blackboard is arranged on the left end side, and the shaft hole of the right movable blackboard is arranged on the right end side.

[0008] Preferably, the upper and lower sides of the front of the movable blackboard are also provided with guide grooves extending left and right, the blackboard eraser includes a vertically extending plate body, the top and bottom of the rear of the plate body are fixedly connected with pins extending forward and backward, the rear end of the pin is installed with a second guide wheel, and the second guide wheel is embedded in the corresponding guide groove.

[0009] Preferably, a vertically extending eraser is provided behind the board body.

[0010] Preferably, the eraser is provided with a metal back plate, and the metal back plate and a magnet plate fixedly connected to the rear of the board body are magnetically attracted to each other.

[0011] Preferably, the dust boxes are all screwed to the bottom of the plate body with the box opening facing upwards.

[0012] Preferably, a lifting scraper is provided on the plate body between the dust box and the top pin shaft. The lifting scraper is annular in shape and is sleeved on the outer periphery of the plate body and the eraser. The lifting scraper is connected to the plate body via a vertically guided slider rail moving pair.

[0013] Preferably, the front of the rear side of the lifting scraper is a concave-convex surface for scraping, and the front side of the lifting scraper is located in front of the plate body to facilitate hand gripping.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the multifunctional blackboard has both blackboard writing and electronic teaching functions by installing an electronic display screen for electronic teaching in the front middle of the blackboard frame, and in order to avoid the electronic display screen occupying the blackboard writing area, the utility model designs the blackboard as a fixed blackboard and a movable blackboard, and when the electronic display screen is not needed, the movable blackboard covers the electronic display screen, which is convenient for blackboard writing; when the electronic display screen is to be used, the movable blackboard can be moved to expose the electronic display screen, which is convenient for electronic teaching.

[0015] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The three-dimensional embodiment of the utility model Figure 1 .

[0017] Figure 2 A top view of an embodiment of the present utility model Figure 1 .

[0018] Figure 3 The three-dimensional embodiment of the utility model Figure 2 .

[0019] Figure 4 A top view of an embodiment of the present utility model Figure 2 .

[0020] Figure 5 for Figure 1 Schematic diagram of the partial structure of the fixed blackboard and the movable blackboard.

[0021] Figure 6 for Figure 3 Schematic diagram of the partial structure of the fixed blackboard and the movable blackboard.

[0022] Figure 7 for Figure 5 A is a partial enlarged view of the .

[0023] Figure 8 for Figure 5 B is a partial enlarged view of .

[0024] Fig. 9 Schematic diagram of the connecting shaft structure.

[0025] Fig.10 This is a schematic diagram of the installation of the first / second guide wheel. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0027] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0028] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0029] like Figures 1 to 10 As shown, this embodiment provides a multifunctional blackboard, including a blackboard frame 1, an electronic display screen 2 is arranged in the front middle part of the blackboard frame, fixed blackboards 3 located in front of the blackboard frame are arranged on the left and right sides of the electronic display screen, and a movable blackboard 4 is arranged in front of the fixed blackboard for sliding left and right between the front of the electronic display screen and the front of the fixed blackboard. The front of the movable blackboard and the fixed blackboard are both connected with a blackboard eraser 5 for sliding left and right cooperation, and the blackboard erasers extend vertically and are provided with a dust box 6 at the bottom.

[0030] In the embodiment of the utility model, the electronic display screen adopts the screen used for electronic intelligent teaching in the prior art.

[0031] In the embodiment of the utility model, the blackboard frame is in a rectangular shape, the electronic display screen and the fixed blackboard are installed inside the blackboard frame, and the electronic display screen is flush with the fixed blackboard and the front of the blackboard frame.

[0032] In the embodiment of the utility model, guide grooves 7 extending left and right are provided on the upper and lower sides of the front of the fixed blackboard, and first guide wheels 8 are provided inside the guide grooves. A connecting shaft 9 is connected to the first guide wheel. The connecting shaft passes through the axial hole opened on the movable blackboard, and the front end of the connecting shaft is screwed and fastened with a butterfly nut 10 located in front of the movable blackboard.

[0033] In an embodiment of the utility model, the connecting shaft is a square shaft, the shape of the shaft hole is adapted to the shape of the connecting shaft, the shaft hole of the left movable blackboard is arranged on the left end side, and the shaft hole of the right movable blackboard is arranged on the right end side.

[0034] In the embodiment of the utility model, the upper and lower sides of the front of the movable blackboard are also provided with guide grooves extending left and right, and the blackboard erasers all include a plate body 11 extending vertically, and the top and bottom of the rear of the plate body are fixedly connected with a pin shaft 12 extending forward and backward, and the rear end of the pin shaft is installed with a second guide wheel 13, and the second guide wheel is embedded in the corresponding guide groove. Among them, the second guide wheel of the blackboard eraser on the movable blackboard is embedded in the corresponding guide groove on the movable blackboard, and the second guide wheel of the blackboard eraser on the fixed blackboard is embedded in the corresponding guide groove on the fixed blackboard, and the guide groove of the fixed blackboard is shared by the first and second guide wheels.

[0035] In the embodiment of the utility model, a vertically extending blackboard eraser 14 is arranged behind the board body.

[0036] In the embodiment of the utility model, the eraser is provided with a metal back plate 15, and the metal back plate and the magnet plate 16 fixedly connected to the back of the board body are magnetically attracted to each other.

[0037] In the embodiment of the utility model, the dust storage box is screwed to the bottom end of the plate body with the box opening facing upward.

[0038] In the embodiment of the utility model, a lifting scraper 17 is provided on the plate body between the dust box and the top pin shaft. The lifting scraper is annular in shape and is sleeved on the outer periphery of the plate body and the eraser. The lifting scraper is connected to the plate body via a vertically guided slider rail moving pair 18.

[0039] In the embodiment of the utility model, the front of the rear side of the lifting scraper is a concave-convex surface 19 for scraping, and the front side of the lifting scraper is located in front of the plate body to facilitate hand gripping.

[0040] In an embodiment of the utility model, the multifunctional blackboard has both blackboard writing and electronic teaching functions by installing an electronic display screen for electronic teaching in the front middle of the blackboard frame. In order to avoid the electronic display screen occupying the blackboard writing area, the utility model designs the blackboard as a fixed blackboard and a movable blackboard. When the electronic display screen is not needed, the movable blackboard covers the electronic display screen to facilitate blackboard writing; when the electronic display screen is to be used, the movable blackboard can be moved to expose the electronic display screen to facilitate electronic teaching.

[0041] In the fixed blackboard and the movable blackboard, the blackboard eraser can slide left and right to erase the blackboard respectively. The lifting scraper in the blackboard eraser can be held by hand and moved up and down by its front side, so that the concave and convex surface can scrape the eraser, and dust falls into the dust storage box below.

[0042] In the embodiment of the utility model, the front and rear edges of the guide groove have limit steps 20 to prevent the guide wheel from slipping out. When installing, the guide wheel enters the guide groove from the end side of the guide groove, and the end side of the guide groove is screwed with a detachable end cover. After the guide wheel is installed in the guide groove, the end cover 21 is locked.

[0043] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A multifunctional blackboard, characterized in that: It comprises a blackboard frame, an electronic display screen is arranged at the front middle part of the blackboard frame, fixed blackboards located in front of the blackboard frame are arranged on the left and right sides of the electronic display screen, a movable blackboard for sliding left and right between the front of the electronic display screen and the front of the fixed blackboard is arranged in front of the fixed blackboard, blackboard erasers are connected to the front of the movable blackboard and the fixed blackboard in a sliding manner, the blackboard erasers extend vertically and dust boxes are arranged at the bottom; the shape of the blackboard frame is rectangular, the electronic display screen and the fixed blackboard are installed inside the blackboard frame, and the electronic display screen is flush with the fixed blackboard and the front of the blackboard frame; guide grooves extending left and right are arranged on the upper and lower sides of the front of the fixed blackboard, the first guide wheels are arranged inside the guide grooves, a connecting shaft is connected to the first guide wheel, the connecting shaft passes through the shaft hole opened on the movable blackboard, and the front end of the connecting shaft is screwed and fastened with a butterfly nut located in front of the movable blackboard; the connecting shaft is a square shaft, and the shape of the shaft hole is consistent with the shape of the connecting shaft The shapes are adapted to each other, the shaft hole of the left movable blackboard is arranged on the left end side, and the shaft hole of the right movable blackboard is arranged on the right end side; the upper and lower sides of the front of the movable blackboard are also provided with guide grooves extending left and right, and the blackboard erasers include a vertically extending plate body, and the top and bottom of the rear of the plate body are fixedly connected with pins extending front and back, and the rear end of the pin is installed with a second guide wheel, and the second guide wheel is embedded in the corresponding guide groove; a vertically extending blackboard eraser is arranged at the rear of the plate body; a metal back plate is arranged on the blackboard eraser, The metal back plate and the magnet plate fixedly connected to the back of the plate body are magnetically attracted to each other; the dust boxes are screwed to the bottom of the plate body with the box opening facing upward; a lifting scraper is provided on the plate body between the dust box and the top pin shaft, the lifting scraper is annular in shape and is sleeved on the outer periphery of the plate body and the eraser, and the lifting scraper is connected to the plate body via a vertically guided slider rail moving pair; the front of the rear side of the lifting scraper is a concave and convex surface for scraping, and the front side of the lifting scraper is located in front of the plate body to facilitate hand gripping.

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