Demonstration board convenient to store

Abstract

The invention discloses a demonstration board convenient to store, which comprises a foldable movable writing board, a supporting structure and a telescopic structure for connecting the movable writing board and the supporting structure, one end of the telescopic structure is connected with the supporting structure, and the other end of the telescopic structure pushes the movable writing board to stretch out and draw back; the number of the movable writing boards is multiple, the multiple movable writing boards are rotationally connected with different positions of the telescopic structure respectively, and in the telescopic process of the telescopic structure, the writing boards are unfolded or folded. According to the demonstration board convenient to store, a larger usable area can be obtained by unfolding the demonstration board.

Description

Technical Field

[0001] This invention relates to the field of presentation boards, and more specifically, to a presentation board that is easy to store. Background Technology

[0002] Portable presentation boards are widely used in education, business meetings, and various training settings due to their flexibility and interactivity. Traditional fixed presentation boards have a large writing area but a fixed position, making them unsuitable for flexible needs such as group discussions and spatial layout adjustments.

[0003] Currently, most portable demonstration boards on the market mainly consist of a board body, a support frame, and casters. To ensure ease of movement and structural stability, existing designs typically keep the board's area relatively small. Summary of the Invention

[0004] The purpose of this invention is to provide a presentation board that is easy to store and can be unfolded to obtain a larger usable area.

[0005] To achieve the above objectives, the present invention provides a demonstration board that is easy to store, including a foldable movable writing board, a support structure, and a telescopic structure connecting the movable writing board and the support structure. One end of the telescopic structure is connected to the support structure, and the other end pushes the movable writing board to extend and retract. Multiple movable writing boards are set up, and each movable writing board is rotatably connected to different positions of the telescopic structure. During the extension and retraction of the telescopic structure, the writing boards unfold or fold.

[0006] Preferably, the telescopic structure includes multiple telescopic joints, a sliding telescopic rod, and a drive motor connected end to end. The movable writing board is rotatably connected to the telescopic joints. One end of the sliding telescopic rod is connected to the drive motor, and the other end is rotatably connected to the movable writing board at the farthest end. The drive motor drives the sliding telescopic rod to extend and retract, thereby driving the telescopic joints to extend and retract.

[0007] Preferably, the first telescopic rod and the second telescopic rod are arranged to cross each other to form a cross rod, and the ends of two adjacent cross rods are rotatably connected to form a telescopic joint; The extension and retraction of the expansion joint is controlled by adjusting the angle of the crossbars.

[0008] Preferably, the telescopic joint is connected to the middle position of the movable writing board in the height direction.

[0009] Preferably, the sliding telescopic rod includes a telescopic rod and a sliding groove fixedly connected to the support structure, with the telescopic rod and the sliding groove slidingly engaged.

[0010] Preferably, the drive unit includes a drive motor, a drive component, and a drive rod, with one end of the drive rod rotatably connected to the drive component and the other end rotatably connected to the nearest end of the telescopic rod; The drive motor drives the drive component to rotate, and the rotation of the drive component drives the telescopic rod to slide within the sliding groove.

[0011] Preferably, the two movable writing boards are rotatably connected by a hinge, and the two rotatably connected movable writing boards form a set of foldable boards. The two movable writing boards of the set of foldable boards are respectively connected to telescopic joints.

[0012] Preferably, the easy-to-store demonstration board also includes a fixed writing board, which is fixedly connected to the support structure.

[0013] Preferably, the fixed writing board is located in the middle of the supporting structure.

[0014] According to the above technical solution, the multiple movable writing boards of the present invention are rotatably connected to different positions of the telescopic structure. During the extension of the telescopic structure, the multiple movable writing boards unfold until the movable writing board 8 is unfolded into a flat surface. This flat movable writing board can be used for presentations or writing. Therefore, this easy-to-store presentation board can achieve a larger usable area by unfolding.

[0015] The support structure supports multiple movable writing boards, and the bottom of the support structure is equipped with casters, which make it easy to move the easy-to-store presentation board to the required position.

[0016] In one embodiment, the telescopic structure can be set as a non-powered structure. When the easy-to-store demonstration board is needed, the telescopic structure can be manually pushed or pulled to unfold or store the movable writing board.

[0017] Other features and advantages of the present invention will be described in detail in the following detailed description section. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the following detailed description to explain the invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of a demonstration board that is easy to store; Figure 2 This is a schematic diagram of a demonstration board that is easy to store; Figure 3 yes Figure 2 The local part of direction A is a graph; Figure 4 This is a schematic diagram illustrating the working principle of a sliding telescopic rod. Figure 5 This is a schematic diagram illustrating the working principle of a sliding telescopic rod. Figure 6 This is a schematic diagram of a demonstration board that is easy to store; Figure 7 yes Figure 6 The local part in direction B is a graph; Figure 8 This is a schematic diagram of a demonstration board that is easy to store; Figure 9 This is a schematic diagram of a set of foldable panels; Figure 10 yes Figure 9 C-direction partial view; Figure 11 This is a schematic diagram of two expansion joints connected together.

[0019] Explanation of reference numerals in the attached figures Detailed Implementation

[0020] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] In this invention, unless otherwise stated, directional terms such as "one end," "the other end," "nearest end," "farthest end," "middle," "both sides," and "symmetric" in the terminology represent only the orientation of the term in its conventional use or are common terms understood by those skilled in the art, and should not be regarded as limitations on the terminology.

[0022] join Figure 1-2 A demonstration board that is easy to store includes a foldable movable writing board 8, a support structure 1, and a telescopic structure connecting the movable writing board 8 and the support structure 1. One end of the telescopic structure is connected to the support structure 1, and the other end pushes the movable writing board 8 to extend and retract. Multiple movable writing boards 8 are provided, and each movable writing board 8 is rotatably connected to different positions of the telescopic structure. During the extension and retraction of the telescopic structure, the writing board unfolds or folds.

[0023] Through the implementation of the above technical solution, multiple movable writing boards 8 are rotatably connected to different positions of the telescopic structure. As the telescopic structure extends, it causes the multiple movable writing boards 8 to unfold until they are unfolded into a flat surface. The movable writing boards 8 in this flat state can be used for presentations or writing. Therefore, this easy-to-store presentation board can achieve a larger usable area by unfolding.

[0024] The support structure 1 is used to support multiple movable writing boards 8, and the bottom of the support structure 1 is equipped with casters, which can be used to easily move the easy-to-store presentation board to the required position.

[0025] In one embodiment, the telescopic structure can be set as a non-powered structure. When the easy-to-store demonstration board is needed, the telescopic structure can be manually pushed or pulled to unfold or store the movable writing board 8.

[0026] In this embodiment, preferably, the telescopic structure includes a plurality of telescopic joints 21, a sliding telescopic rod 22, and a drive motor connected end to end in sequence. The movable writing board 8 is rotatably connected to the telescopic joints 21. One end of the sliding telescopic rod 22 is connected to the drive motor, and the other end is rotatably connected to the farthest movable writing board 8. The drive motor drives the sliding telescopic rod 22 to extend and retract, thereby driving the telescopic joints 21 to extend and retract.

[0027] The drive motor drives the sliding telescopic rod 22 to extend and retract. During the extension and retraction process, the sliding telescopic rod 22 will cause the farthest movable writing board 8 to extend outward. The farthest movable writing board 8 will cause the telescopic joint 21 connected to it to extend and retract. During the extension and retraction process of the farthest telescopic joint 21, it will cause the other telescopic joints connected to it to move, thereby transmitting this extension and retraction movement throughout the entire telescopic structure.

[0028] Each telescopic joint 21 can extend and retract. Different movable writing boards 8 are connected to different telescopic joints 21. Therefore, during the extension and retraction of the sliding telescopic rod 22, different telescopic joints 21 drive different movable writing boards 8 to extend and retract simultaneously. In this way, the movable writing boards 8 can be restricted by the telescopic joints 21 during the unfolding or retraction process, ensuring the stability of the movable writing boards 8 during movement.

[0029] In this embodiment, preferably, the first telescopic rod 211 and the second telescopic rod 212 are arranged to cross each other to form a cross rod, and the ends of two adjacent cross rods are rotatably connected to form a telescopic joint 21; The extension and retraction of the telescopic joint 21 is controlled by adjusting the included angle of the crossbars.

[0030] The extension and retraction of the telescopic joint 21 is controlled by adjusting the included angle of the crossbars, such as... Figure 2-3 As shown, the movable writing board 8 is rotatably connected to the intersection point of the crossbar. Preferably, the movable writing board 8 is fixedly connected to the first telescopic rod 211 or the second telescopic rod 212 near the movable writing board 8 on the crossbar. This ensures that the telescopic joint 21 effectively fixes the movable writing board 8 during the extension and retraction of the sliding telescopic rod 22. This provides better stability for the movable writing board 8 when unfolding or storing the easily foldable presentation board, and it is less prone to wobbling during use. The crossbar also ensures the stability of the movable writing board 8 when writing is required.

[0031] In this embodiment, preferably, the telescopic joint 21 is connected to the middle position of the movable writing board 8 in the height direction.

[0032] like Figure 8 and 2 As shown, the upper and lower ends of the movable writing board 8 are respectively connected to the end movable structure 91 or the support slider 92. The end movable structure 91 can extend and retract with the sliding telescopic rod 22 and support the ends of the movable writing board 8.

[0033] Since the lower support structure also needs to withstand the weight of the movable writing board 8, it needs to have better strength and be able to extend and retract with the sliding telescopic rod 22. In one embodiment, the lower support structure is configured as a structure in which a support rail 93 cooperates with a support slider 92. The support slider 92 is rotatably connected to the farthest movable writing board 8, and the support slider 92 slides on the support rail 93 as the sliding telescopic rod 22 extends and retracts.

[0034] Preferably, the support slide rail 93 is configured as a spliced ​​structure, consisting of two identical slide rail sections spliced ​​together, with a hinge at the splicing position. A limiting structure is provided corresponding to the hinge position. When the writing board 8 needs to be moved, this limiting structure supports the foldable slide rail and maintains the flatness of the splicing position of the two slide rails. When the writing board 8 is stored, the support slide rail 93 can be folded via the hinge. Preferably, the limiting structure is configured as a rotatable support plate, which is rotatably connected to the fixed slide rail. When the slide rail needs to be folded, the long end of the support plate is rotated to below the fixed slide rail. When the foldable slide rail needs to be supported, the support plate can be rotated to below the foldable slide rail, thus providing support for the foldable slide rail.

[0035] In this embodiment, preferably, the sliding telescopic rod 22 includes a telescopic rod 31 and a sliding groove 32 fixedly connected to the support structure 1, wherein the telescopic rod 31 and the sliding groove 32 are slidably engaged.

[0036] Under the action of the drive motor, the telescopic rod 31 can slide in the sliding groove 32 to push the movable writing board 8 at the farthest end. Preferably, the sliding groove 32 is set to have a certain length so that the telescopic rod 31 can be better supported, thereby ensuring stability during the pushing process.

[0037] In one embodiment, the drive mechanism can be configured as a drive motor, which drives two telescopic rods 31 to slide simultaneously in the sliding grooves 32 on both sides, thereby realizing the simultaneous unfolding of the movable writing boards 8 on both sides.

[0038] In one embodiment, the two movable writing pads 8 on each side can be controlled independently. Two linearly movable mechanisms push the telescopic rods 31 on each side to slide in their respective sliding grooves 32, thereby achieving independent control of the two movable writing pads 8 on each side. With this method, one movable writing pad 8 can be unfolded independently as needed, while the other movable writing pad 8 remains in its retracted state and unaffected.

[0039] In this embodiment, preferably, the drive unit includes a drive motor 41, a drive member 42, and a drive rod 43. One end of the drive rod 43 is rotatably connected to the drive member 42, and the other end is rotatably connected to the nearest end of the telescopic rod 31. The drive motor 41 drives the drive component 42 to rotate, and the rotation of the drive component 42 drives the telescopic rod 31 to slide within the sliding groove 32.

[0040] When the movable writing board 8 is in its initial state, the driving member 42 is in the first position. In this position, the connection between the driving member 42 and the driving rod 43 is far away from the telescopic rod 31. When the movable writing board 8 needs to be unfolded, the driving member 42 rotates from the first position to the second position. During the rotation, the connection between the driving member 42 and the driving rod 43 gradually moves closer to the telescopic rod 31, thereby pushing the telescopic rod 31. Therefore, as the driving member 42 rotates from the first position to the second position, the driving rod 43 pushes the telescopic rod 31 to slide outward within the sliding groove 32, thereby unfolding the movable writing board 8.

[0041] When it is necessary to store the demonstration board for easy storage, the drive component 42 is rotated in the opposite direction, so that the position where the drive component 42 is connected to the drive rod 43 gradually moves away from the telescopic rod 31. As the drive component 42 rotates from the second position to the first position, the drive rod 43 pulls the telescopic rod 31 to slide inward within the sliding groove 32, thereby realizing the storage function of the movable writing board 8.

[0042] In this embodiment, preferably, the two movable writing boards 8 are rotatably connected by a hinge 5, and the two rotatably connected movable writing boards 8 form a set of foldable boards. The two movable writing boards 8 of the set of foldable boards are respectively connected to the telescopic joint 21.

[0043] The telescopic joint 21 located between the two movable writing pads 8 changes the angle between them during its extension and retraction. When the telescopic joint 21 extends, the angle between the two movable writing pads 8 increases until they are fully open. When the telescopic joint 21 retracts, the angle between the two movable writing pads 8 decreases until they are fully retracted.

[0044] When using the telescopic joint 21 structure, it is difficult for the two movable writing boards 8 to be on the same plane even when fully extended, because the two connection points of the two crossbars cannot coincide. The first telescopic rod 211 and the second telescopic rod 212 of the crossbars are located in two planes respectively. When two adjacent crossbars are connected, the first telescopic rod 211, which was originally located in the first plane of the first crossbar, and the second telescopic rod 212, which was located in the second plane of the second crossbar, connect. Correspondingly, the second telescopic rod 212, which was located in the second plane of the first crossbar, and the first telescopic rod 211, which was located in the first plane of the second crossbar, connect. Thus, the two connection points are at the same height in space. When the telescopic joint 21 extends to its limit, the two connection points will interfere with each other, causing the first telescopic rod 211 and the second telescopic rod 212 to not fit together. Therefore, in actual use, the two movable writing boards 8 of a set of foldable boards can only be in a position approximately on the same plane, and the connection between the two movable writing boards 8 will bulge slightly outward.

[0045] Similarly, when the telescopic joint 21 is compressed, the middle intersection point of two adjacent crossbars cannot coincide. Therefore, when a set of foldable boards is stored, the two movable writing boards 8 cannot fit together, but will have a small angle.

[0046] In this embodiment, preferably, the easy-to-store demonstration board also includes a fixed writing board 6, which is fixedly connected to the support structure 1.

[0047] By setting the fixed writing board 6 as an electronic screen, the easily foldable presentation board becomes compatible with electronic screens, expanding its functionality and broadening its application scenarios. The movable writing board 8 is set as a blackboard for writing, enabling simultaneous electronic display and blackboard writing. Writing on the blackboard can also be easily corrected and erased.

[0048] In this embodiment, the fixed writing board 6 is preferably located in the middle of the support structure 1.

[0049] The fixed writing board 6 is located in the middle of the support structure 1, and a movable writing board 8 can be installed on one or both sides of its outer side. If the fixed writing board 6 is sufficient for use, it is not necessary to unfold the movable writing board 8. When the fixed writing board 6 cannot meet the requirements, the movable writing board 8 needs to be unfolded to expand the usable area of ​​the presentation board that is easy to store.

[0050] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0051] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

[0052] Furthermore, various different embodiments of the present invention can be combined in any way, as long as they do not violate the spirit of the present invention, they should also be regarded as the content disclosed by the present invention.

Claims

1. A presentation board for easy storage, characterized by, The utility model provides a kind of demonstration board, including collapsible movable writing board (8), support structure (1) and the telescopic structure connecting the movable writing board (8) with the support structure (1), one end of the telescopic structure is connected with the support structure (1), and the other end pushes the movable writing board (8) telescopic; The movable writing board (8) is provided with multiple, and multiple movable writing boards (8) are rotatably connected with different positions of the telescopic structure, and the writing board is unfolded or folded during the telescoping of the telescopic structure.

2. The easel of claim 1, wherein, The telescopic structure includes multiple first and last sequentially connected telescopic sections (21), sliding telescopic rods (22) and driving machines, the movable writing board (8) is rotatably connected with the telescopic section (21), one end of the sliding telescopic rod (22) is connected with the driving machine, and the other end is rotatably connected with the most distal movable writing board (8), and the driving machine drives the sliding telescopic rod (22) to telescope, for driving the telescopic section (21) to telescope.

3. The easel of claim 2, wherein, The first telescopic rod (211) and the second telescopic rod (212) are cross arranged to form a cross rod, and the end portions of adjacent two cross rods are rotatably connected to form a telescopic section (21). The included angle of the cross rod is adjusted to control the telescopic section (21) to telescope.

4. The easel of claim 3, wherein, The telescopic section (21) is connected with the middle position of the height direction of the movable writing board (8).

5. The easel of claim 2, wherein, The sliding telescopic rod (22) includes a telescopic rod (31) and a sliding groove (32) fixedly connected with the support structure (1), and the telescopic rod (31) is slidably connected with the sliding groove (32).

6. The easel of claim 2, wherein, The driving machine includes a driving motor (41), a driving member (42) and a driving rod (43), one end of the driving rod (43) is rotatably connected with the driving member (42), and the other end is rotatably connected with the nearest end of the telescopic rod (31). The driving motor (41) drives the driving member (42) to rotate, and the driving member (42) drives the telescopic rod (31) to slide in the sliding groove (32).

7. The easel of claim 2, wherein, Two movable writing boards (8) are rotatably connected by a hinge (5), and two rotatably connected movable writing boards (8) form a set of foldable boards, and two movable writing boards (8) of a set of foldable boards are respectively connected with the telescopic section (21).

8. The easel of claim 2, wherein, The demonstration board is also provided with a fixed writing board (6) fixedly connected with the support structure (1).

9. The easel of claim 7, wherein, The fixed writing board (6) is located in the middle of the support structure (1).

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