Folding electronic whiteboard

Abstract

The utility model relates to a folding electronic whiteboard which comprises an electronic whiteboard main board of a display and touch two-in-one all-in-one machine. The device further comprises an auxiliary plate and a damping torque hinge. The auxiliary board is installed on the side face of the electronic whiteboard main board through the damping torque hinge. The damping torque hinge comprises a damping torque device, a first torsion arm and a second torsion arm, wherein the first torsion arm and the second torsion arm are clamped on a torsion shaft of the damping torque device. In the utility model, the auxiliary board is hinged on the side surface of the electronic whiteboard main board by adopting the damping torque hinge, so that the auxiliary board can stay at any angle on the side surface of the electronic whiteboard main board, the use is flexible, and the requirements of teaching practice can be met.

Description

Technical Field

[0001] The utility model relates to the field of electronic whiteboards, in particular to a foldable electronic whiteboard with a foldable sub-board. Background Art

[0002] Electronic whiteboards are widely used in multimedia teaching. Currently, multimedia classrooms are generally equipped with electronic whiteboards, which are used to replace blackboards for teaching. As an electronic product, an electronic whiteboard is an input display screen that combines a touch screen and a display screen. It has flexible scalability. However, if it is used to replace the traditional teaching blackboard for writing and printing written content for students to record, the layout is not large enough. Therefore, in many cases, a secondary board is equipped next to the main electronic whiteboard for writing. Some hang the secondary board next to the main electronic whiteboard. For example, the utility model patent announcement number CN 203325239 U discloses a foldable classroom multimedia teaching device. The device is provided with a left green board and a right green board on the left and right sides of the electronic whiteboard, which can be written on both sides; the left green board is hinged on the left side of the electronic whiteboard fixing frame, and the right green board is hinged on the right side of the electronic whiteboard fixing frame. The shape and size formed by the left and right green boards after closing are compatible with the electronic whiteboard. This foldable classroom multimedia teaching device features extended sub-boards (green boards) on both sides of the electronic whiteboard, increasing the writing surface while also providing a protective cover. However, this teaching device has only two states: in use and stored. When in use, the green boards are open, while when not in use, they fold inward to cover the electronic whiteboard. This makes the green boards inflexible and unsuitable for practical teaching. Utility Model Content

[0003] Aiming at the problem that the green board in the current foldable classroom multimedia teaching device is not flexible enough and cannot meet the needs of teaching practice, the utility model provides a foldable electronic whiteboard, in which a secondary board is installed on the side of the main board by using a damping hinge.

[0004] The technical solution of the utility model is: a foldable electronic whiteboard, comprising an electronic whiteboard mainboard of a display and touch two-in-one device; a sub-board and a damping torque hinge; the sub-board is mounted on the side of the electronic whiteboard mainboard using the damping torque hinge;

[0005] The damping torque hinge comprises a damping torque device, a first torsion arm and a second torsion arm, wherein the first torsion arm and the second torsion arm are clamped on the torsion shaft of the damping torque device.

[0006] Furthermore, in the above-mentioned foldable electronic whiteboard, the connection points between the first torsion arm and the second torsion arm and the torsion shaft are circular.

[0007] Furthermore, in the above-mentioned foldable electronic whiteboard, the first torsion arm and the second torsion arm are plate-shaped profiles that are axially perpendicular to the torsion axis.

[0008] Furthermore, in the above-mentioned foldable electronic whiteboard, the secondary board includes a pair of whiteboards symmetrically arranged on the left and right sides of the electronic whiteboard main board.

[0009] In the utility model, the auxiliary board is hinged to the side of the electronic whiteboard main board by adopting a damping torque hinge, and can stay at any angle on the side of the electronic whiteboard main board. It is flexible to use and can meet the needs of teaching practice.

[0010] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A front view of the foldable electronic whiteboard in use according to an embodiment of the utility model;

[0012] Figure 2 A diagram showing a foldable electronic whiteboard sub-board folded around the electronic whiteboard main board according to an embodiment of the utility model;

[0013] Figure 3 A front view of a damping torque hinge used in a foldable electronic whiteboard according to an embodiment of the present invention;

[0014] Figure 4 This is a side elevation view of a damping torque hinge used in a foldable electronic whiteboard according to an embodiment of the present invention. DETAILED DESCRIPTION

[0015] In this embodiment, a pair of damping torque hinges 300 are symmetrically hinged on both sides of the electronic whiteboard main board 100 to form a whiteboard as a sub-board 200. The sub-board 200 forms a foldable electronic whiteboard, which is a new type of educational tool that can replace the traditional blackboard and has many extended functions.

[0016] like Figure 1 As shown, in this embodiment, an electronic whiteboard mainboard 100 is included, which can be any mainstream electronic whiteboard currently on the market. It is a touch-display integrated machine formed by a touch screen and a display screen. It can not only be used for teaching like a discarded blackboard, but also can be used to write teaching content on it, that is, like a traditional classroom, where the teacher writes teaching content on the blackboard for students to learn. The content written by the teacher can also be input into the host through the touch screen, and then displayed on the display screen and recorded in the memory of the host. In order to increase the content of the writing, in this embodiment, a whiteboard is added to the left and right of the electronic whiteboard mainboard 100 as a sub-board 200, such as Figure 1As shown, the sub-board 200 is hinged to the left and right sides of the electronic whiteboard main board 100 using the damping torque hinge 300. By hinged with the damping torque hinge 300, the sub-board 200 can freely stay at any angle on the left and right sides of the electronic whiteboard main board 100, such as Figure 2 As shown, there are three positions, A, B, and C. Position B indicates that the secondary panel 200 can be folded in front of the electronic whiteboard main board 100, parallel to the electronic whiteboard main board 100 and covering the front of the electronic whiteboard main board 100. This is the factory setting, which is convenient for transportation. The secondary panel 200 can also be used to protect the electronic whiteboard main board 100's integrated touch display screen. During use, the secondary panels 200 can be manually opened and closed, and can be placed in any position. In position A, the secondary panels 200 and the electronic whiteboard main board 100 are on the same plane, both facing the user, forming a large writing board, much like the small blackboards added to the side of the blackboard in some traditional classrooms for writing. In position C, the two secondary panels 200 are bent backward, and the back of the secondary panels 200 can be close to the back of the electronic whiteboard main board 100 chassis. In fact, the backward bending angle can exceed 120 degrees. In this embodiment, the secondary panels 200 are ordinary whiteboards installed on both sides of the electronic whiteboard main board 100, which can also be blue boards or ordinary blackboards for writing. In other embodiments, a touch screen can be installed on a regular whiteboard, with the touch screen's main unit directly integrated into the electronic whiteboard's main unit. This allows the touch screen to capture and save any information written on either the electronic whiteboard's main unit 100 or the auxiliary unit. In other embodiments, the auxiliary unit 200 can also utilize an integrated touchscreen display. To reduce weight, its circuit board can be housed within the electronic whiteboard's main unit 100 chassis. The display can be a flexible LED display attached to the auxiliary unit 200 frame, with a transparent protective cover placed in front for writing.

[0017] In this embodiment, the sub-board 200 is mounted on both sides of the electronic whiteboard main board 100 using a damping torque hinge 300. The sub-board 200 can be mounted on both sides of the electronic whiteboard main board 100 by using one damping torque hinge 300 on each side. Figure 3 and Figure 4 As shown, the damping torque device 301 includes a first torsion arm 302 and a second torsion arm 303. The first torsion arm 302 and the second torsion arm 303 are clamped to the torsion shaft 304 of the damping torque device 301. The damping torque device 301 is an integrated damping torque device having a torsion shaft 304, to which the torsion arms are mounted. When the force is applied and released, the sub-plate 200 stops at this position, no longer moving forward or returning to its original position. Therefore, the sub-plate can stay at any desired angle.

[0018] In this embodiment, the first and second torsion arms 302, 303 are circular at their junctions with the torsion shaft 304. This is required for two reasons: aesthetics and ease of rotation. In this embodiment, the first and second torsion arms 302, 303 are plate-shaped profiles axially perpendicular to the torsion shaft 304. This allows screws to be used to bolt the first and second torsion arms 302, 303, with screw holes at their ends, to the top or bottom of the electronic whiteboard main board 100 and the sub-board 200. In this embodiment, only two damping torque hinges 300 are needed to securely attach a sub-board 200 on one side. In practice, such damping torque hinges 300 can hinge a 15-20 kg sub-board 200 to the side of the electronic whiteboard main board 100. When the sub-board 200 is parallel to the electronic whiteboard main board 100, the gap between them can be between 3-8 cm, facilitating rotation of the sub-board 200 about the torsion shaft 304. In some other embodiments, a damping torque hinge 300 can also be used to hinge the middle part of the electronic whiteboard mainboard 100 casing and the middle part of the sub-board 200. At this time, two torsion arm profiles can be used to twist 90 degrees from the middle, so that the two torsion arms can be fixed to the middle part of the electronic whiteboard mainboard 100 casing and the middle part of the sub-board 200 respectively with screws.

Claims

1. A foldable electronic whiteboard, comprising an electronic whiteboard mainboard (100) of a two-in-one display and touch screen device; characterized in that: It also includes a sub-plate (200) and a damping torque hinge (300); the sub-plate (200) is mounted on the side of the electronic whiteboard main board (100) using the damping torque hinge (300); The damping torque hinge (300) comprises a damping torque device (301), a first torsion arm (302) and a second torsion arm (303), wherein the first torsion arm (302) and the second torsion arm (303) are clamped on a torsion shaft (304) of the damping torque device (301).

2. The foldable electronic whiteboard according to claim 1, characterized in that: The connection points between the first torsion arm (302) and the second torsion arm (303) and the torsion shaft (304) are circular.

3. The foldable electronic whiteboard according to claim 2, characterized in that: The first torsion arm (302) and the second torsion arm (303) are plate-shaped profiles axially perpendicular to the torsion axis (304).

4. The foldable electronic whiteboard according to claim 3, characterized in that: The auxiliary board (200) comprises a pair of whiteboards symmetrically arranged on the left and right sides of the electronic whiteboard main board (100).

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