Blackboard structure and intelligent blackboard
The coplanar and coverage state switching of the movable blackboard is achieved in the push-pull blackboard through the hinged connector, which solves the problem of powder accumulation of support slide rails, ensuring the smooth movement of the movable blackboard and the long life of the chalkboard structure.
Patent Information
- Application Number
- CN202420859626.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-23
AI Technical Summary
The support slide rails of the existing push-pull blackboard are prone to accumulate powder after use for a period of time, affecting the sliding smoothness of the movable blackboard.
The hinged connectors are used to move the movable blackboard on the fixed blackboard, enabling switching between coplanar and cover states, avoiding dependence on the slide rails and ensuring smooth movement of the movable blackboard.
By hiding the writing surface of the fixed blackboard, powder accumulation is avoided, the movement of the movable blackboard is ensured and the service life of the blackboard structure is extended.
Smart Images
Figure CN222202111U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of blackboard equipment, and more specifically, to a blackboard structure and an intelligent blackboard. Background Art
[0002] A sliding blackboard is a special type of blackboard that can be pushed and pulled when needed to change the position of the blackboard to display content.
[0003] The push-pull blackboard includes a fixed blackboard, a movable blackboard and a support rail, wherein the support rail is installed at the bottom of the fixed blackboard and is directly exposed in the visible range, and the movable blackboard is slidably installed on the support rail. Because the support rail is located at the bottom of the fixed blackboard, it is easy for powder to accumulate on the support rail after the push-pull blackboard has been used for a period of time, which greatly affects the smoothness of the sliding of the movable blackboard. Utility Model Content
[0004] The purpose of the embodiments of the present application is to provide a blackboard structure and an intelligent blackboard, aiming to solve the technical problem of the unsmooth movement of the movable blackboard in the prior art.
[0005] To achieve the above-mentioned purpose, according to one aspect of the present application, a blackboard structure is provided, including a blackboard assembly, the blackboard assembly including a fixed blackboard, a movable blackboard and a connecting portion, the fixed blackboard and the movable blackboard both having a writing surface and a back surface relatively arranged; the movable blackboard has a coplanar state and a covering state, when the movable blackboard is in the coplanar state, the writing surface of the movable blackboard is coplanar with the writing surface of the fixed blackboard; when the movable blackboard is in the covering state, the back surface of the movable blackboard at least partially covers the writing surface of the fixed blackboard; the connecting portion includes a connecting piece, the connecting piece has a first connecting end and a second connecting end, the first connecting end of the connecting piece is hingedly mounted on the fixed blackboard, the second connecting end of the connecting piece is hingedly mounted on the movable blackboard, and the movable blackboard is switched between the coplanar state and the covering state through the connecting piece.
[0006] Optionally, the first connecting end of the connecting member is hingedly mounted on the back side of the fixed blackboard, and the second connecting end of the connecting member is hingedly mounted on the back side of the movable blackboard.
[0007] Optionally, the connecting part also includes a first fixing member and a second fixing member, the first fixing member is installed on the back of the fixed blackboard, and the first connecting end of the connecting member is hingedly installed on the first fixing member; the second fixing member is installed on the back of the movable blackboard, and the second connecting end of the connecting member is hingedly installed on the second fixing member.
[0008] Optionally, the connecting part further includes a first hinge and a second hinge, the first connecting end of the connecting member is hingedly mounted on the first fixing member via the first hinge, and the second connecting end of the connecting member is hingedly mounted on the second fixing member via the second hinge.
[0009] Optionally, the first hinge and the second hinge are both hinges; the first hinge is connected to the first fixed member, the first hinge is connected to the first connecting end of the connecting member, and the connecting member is used to be rotatably mounted on the first fixed member; the second hinge is connected to the second fixed member, the second hinge is connected to the second connecting end of the connecting member, and the connecting member is used to be rotatably mounted on the second fixed member.
[0010] Optionally, the first hinge and the second hinge are both hinge pins; a first hinge hole is provided on the first connecting end of the connecting member, a first fixing hole is provided on the first fixing member, the first hinge is inserted into the first hinge hole and the first fixing hole, and the connecting member is used to be rotatably mounted on the first fixing member around the axis of the first hinge; a second hinge hole is provided on the second connecting end of the connecting member, a second fixing hole is provided on the second fixing member, the second hinge is inserted into the second hinge hole and the second fixing hole, and the connecting member is used to be rotatably mounted on the second fixing member around the axis of the second hinge.
[0011] Optionally, the connecting portion includes a plurality of connecting members, the connecting members are connecting rods or connecting plates, and the plurality of connecting members are parallel to each other.
[0012] Optionally, the blackboard assembly includes a plurality of connection parts, and the plurality of connection parts are arranged at intervals along a height direction of the fixed blackboard.
[0013] Optionally, two blackboard assemblies are provided, one blackboard assembly is located at one side of the other blackboard assembly, and the two movable blackboards are used to move closer to or farther away from each other.
[0014] According to another aspect of the present application, a smart blackboard is provided, which includes a display screen and the above-mentioned blackboard structure. The display screen is located on one side of the fixed blackboard. When the movable blackboard is in a coplanar state, the back of the movable blackboard at least partially covers the display screen.
[0015] The beneficial effect of the blackboard structure provided by the present application is that, compared with the prior art, by adopting the connecting piece in the present application to drive the movable blackboard to move on the fixed blackboard, not only can the writing surface of the movable blackboard and the writing surface of the fixed blackboard be located in the same plane to expand the writing range, but the back of the movable blackboard can also cover the writing surface of the fixed blackboard to hide the fixed blackboard, thereby avoiding the need for the movable blackboard to be used with a slide rail that is prone to powder accumulation in order to complete the movement on the fixed blackboard, ensuring the smoothness of the movement of the movable blackboard and extending the service life of the blackboard structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical features of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.
[0017] Figure 1 A schematic diagram of the structure of the smart blackboard provided for the first embodiment of the present application;
[0018] Figure 2 A schematic diagram of the structure of the smart blackboard provided for the first embodiment of the present application;
[0019] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;
[0020] Figure 4 A schematic diagram of the structure of a blackboard assembly provided for the first embodiment of the present application;
[0021] Figure 5 for Figure 4 The enlarged schematic diagram of point B in the middle;
[0022] Figure 6 for Figure 4 The enlarged schematic diagram of the center C;
[0023] Figure 7 A schematic diagram of a smart blackboard provided for the second embodiment of the present application;
[0024] Figure 8 A schematic diagram of a smart blackboard provided for the second embodiment of the present application;
[0025] Fig. 9 A schematic diagram of a smart blackboard provided for the second embodiment of the present application;
[0026] Fig.10 for Fig. 9 The enlarged schematic diagram of point D in the middle;
[0027] Fig.11 A schematic structural diagram of a connecting portion provided for the second embodiment of the present application.
[0028] The reference numerals in the above drawings are as follows:
[0029] 100. Fixed blackboard; 200. Movable blackboard; 300. Connecting part; 310. Connecting piece; 320. First fixing piece; 330. Second fixing piece; 340. First hinged piece; 350. Second hinged piece; 400. Display screen. DETAILED DESCRIPTION
[0030] In order to have a clearer understanding of the technical features, purposes and effects of the present application, the specific implementation methods of the present application are further described in detail below in conjunction with the accompanying drawings and Examples. The following examples are only used to illustrate the present application, but are not used to limit the scope of protection of the present application. Based on the embodiments of the present application, other embodiments obtained by those skilled in the art without paying creative work should all belong to the scope of protection of the present application.
[0031] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0032] In the description of this application, it should be understood that the numbers in this document, such as "first", "second", etc., are only used to distinguish the objects described, have no sequential or technical meaning, and cannot be understood as stipulating or implying the importance of the objects described.
[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0034] In the description of this application, the term "plurality" refers to two or more than two. In addition, the term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.
[0035] In the description of this application, it should be noted that, unless otherwise defined, all technical and scientific terms used in this application have the same meaning as those commonly understood by those skilled in the art. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood by specific circumstances.
[0036] As described in the background technology, at present, a push-pull blackboard is a special type of blackboard that can be pushed and pulled when needed to change the position of the blackboard to display the content. The push-pull blackboard includes a fixed blackboard, a movable blackboard, and a support rail, wherein the support rail is installed at the bottom of the fixed blackboard and is directly exposed in the visible range, and the movable blackboard is slidably installed on the support rail. Because the support rail is located at the bottom of the fixed blackboard, powder is easily accumulated on the support rail after the push-pull blackboard is used for a period of time, which greatly affects the smoothness of the sliding of the movable blackboard.
[0037] Reference Figures 1 to 3 as well as Figures 7 to 9 In order to solve the above problems, according to one aspect of the present application, an embodiment of the present application provides a blackboard structure, which includes a blackboard assembly, and the blackboard assembly includes a fixed blackboard 100, a movable blackboard 200 and a connecting portion 300. The fixed blackboard 100 and the movable blackboard 200 both have a writing surface and a back surface that are relatively arranged; the movable blackboard 200 has a coplanar state and a covering state. When the movable blackboard 200 is in the coplanar state, the writing surface of the movable blackboard 200 is coplanar with the writing surface of the fixed blackboard 100; when the movable blackboard 200 is in the covering state, the back surface of the movable blackboard 200 at least partially covers the writing surface of the fixed blackboard 100; the connecting portion 300 includes a connecting member 310, and the connecting member 310 has a first connecting end and a second connecting end. The first connecting end of the connecting member 310 is hingedly mounted on the fixed blackboard 100, and the second connecting end of the connecting member 310 is hingedly mounted on the movable blackboard 200. The movable blackboard 200 switches between the coplanar state and the covering state through the connecting member 310.
[0038] Figure 1 is a structural schematic diagram of the movable blackboard 200 in a coplanar state in the first embodiment; Figure 2 is a schematic structural diagram of the movable blackboard 200 when switching between the coplanar state and the covering state in the first embodiment; Figure 7 is a structural schematic diagram of the movable blackboard 200 in a coplanar state in the second embodiment; Figure 8 is a structural schematic diagram of the movable blackboard 200 in the covering state in the second embodiment; Fig. 9 Schematic diagram of the structure of the movable blackboard 200 when switching between the coplanar state and the covering state in the second embodiment.
[0039] In an embodiment of the present application, when the movable blackboard 200 is in a coplanar state, the movable blackboard 200 is located on one side of the fixed blackboard 100, and the writing surface of the movable blackboard 200 and the writing surface of the fixed blackboard 100 are located in the same plane; when the movable blackboard 200 is in a covering state, the movable blackboard 200 is located in front of the fixed blackboard 100, and to ensure the covering effect, the back of the movable blackboard 200 completely covers the writing surface of the fixed blackboard 100; the first connecting end of the connecting member 310 is generally hingedly mounted on the fixed blackboard 100 through a hinged component (such as a hinge, a hinge pin or a universal joint), and the second connecting end of the connecting member 310 is generally hingedly mounted on the movable blackboard 200 through a hinged component (such as a hinge, a hinge pin or a universal joint).
[0040] By adopting the connecting member 310 in the present application to drive the movable blackboard 200 to move on the fixed blackboard 100, not only can the writing surface of the movable blackboard 200 and the writing surface of the fixed blackboard 100 be located in the same plane to expand the writing range, but the back of the movable blackboard 200 can also cover the writing surface of the fixed blackboard 100 to hide the fixed blackboard 100, thereby avoiding the need for the movable blackboard 200 to be used in conjunction with a slide rail that is prone to powder accumulation in order to complete the movement on the fixed blackboard 100, thereby ensuring the smoothness of the movement of the movable blackboard 200 and extending the service life of the blackboard structure.
[0041] In addition, in order to enrich the versatility of the blackboard structure, a display screen 400 is provided on one side of the blackboard structure. When the movable blackboard 200 is in a coplanar state, the back of the movable blackboard 200 covers the display screen 400 to prevent the display screen 400 from being exposed; when the movable blackboard 200 is in a covering state, the display screen 400 is completely exposed to ensure the normal use of the display screen 400. In order to reduce the volume of the blackboard structure and improve the aesthetics of the blackboard structure, the connecting member 310 is a connecting rod or a connecting plate, and the first connecting end and the second connecting end of the connecting member 310 are two opposite ends on the connecting member 310.
[0042] Reference Figure 2 , Figure 3 , Fig. 9 as well as Fig.10 As an optional method in the embodiment of the present application, the first connecting end of the connecting member 310 is hingedly mounted on the back of the fixed blackboard 100, and the second connecting end of the connecting member 310 is hingedly mounted on the back of the movable blackboard 200.
[0043] In this optional embodiment, the connecting member 310 is generally a connecting strip or a connecting rod or a connecting plate; the first connecting end of the connecting member 310 is hingedly mounted on the back of the fixed blackboard 100 through a hinge component (such as a hinge, a hinge pin or a universal joint), and the second connecting end of the connecting member 310 is hingedly mounted on the back of the movable blackboard 200 through a hinge component (such as a hinge, a hinge pin or a universal joint); the above design avoids the first connecting end and the second connecting end of the connecting member 310 from being directly exposed within the visible range, thereby improving the aesthetics of the blackboard structure.
[0044] Reference Figures 3 to 6 as well as Fig.10 and Fig.11 As an optional method in the embodiment of the present application, the connecting part 300 also includes a first fixing member 320 and a second fixing member 330. The first fixing member 320 is installed on the back of the fixed blackboard 100, and the first connecting end of the connecting member 310 is hingedly installed on the first fixing member 320; the second fixing member 330 is installed on the back of the movable blackboard 200, and the second connecting end of the connecting member 310 is hingedly installed on the second fixing member 330.
[0045] In this optional manner, the first fixing member 320 is a fixing bar or a fixing rod, which is fixedly mounted on the back of the fixed blackboard 100 by welding, bonding or screws, and the first connecting end of the connecting member 310 is hingedly mounted on the first fixing member 320 through a hinge component (such as a hinge, a hinge pin or a universal joint); the second fixing member 330 is a fixing bar or a fixing rod, which is fixedly mounted on the back of the movable blackboard 200 by welding, bonding or screws, and the second connecting end of the connecting member 310 is hingedly mounted on the second fixing member 330 through a hinge component (such as a hinge, a hinge pin or a universal joint); the provision of the first fixing member 320 and the second fixing member 330 not only enables the connecting part 300 to be divided into a plurality of parts, thereby facilitating the assembly of the connecting part 300, but also avoids the need to directly hinge the connecting member 310 on the fixed blackboard 100 and the movable blackboard 200, thereby ensuring the integrity of the fixed blackboard 100 and the movable blackboard 200.
[0046] Reference Figures 3 to 6 as well as Fig.10 and Fig.11 As an optional method in the embodiment of the present application, the connecting part 300 also includes a first hinge 340 and a second hinge 350, the first connecting end of the connecting member 310 is hingedly mounted on the first fixing member 320 through the first hinge 340, and the second connecting end of the connecting member 310 is hingedly mounted on the second fixing member 330 through the second hinge 350.
[0047] In this optional embodiment, the first hinge 340 can be a hinge, a universal joint or a hinge pin, and the second hinge 350 can be a hinge, a universal joint or a hinge pin; by adopting the first hinge 340, the connecting member 310 can be swung on the first fixing member 320, and by adopting the second hinge 350, the connecting member 310 can be swung on the second fixing member 330; the first hinge 340 and the second hinge 350 ensure the smooth movement of the movable blackboard 200.
[0048] Reference Figures 3 to 6 In the first embodiment, the first hinge 340 and the second hinge 350 are both hinges; the first hinge 340 is connected to the first fixed member 320, the first hinge 340 is connected to the first connecting end of the connecting member 310, and the connecting member 310 is used to be rotatably mounted on the first fixed member 320; the second hinge 350 is connected to the second fixed member 330, the second hinge 350 is connected to the second connecting end of the connecting member 310, and the connecting member 310 is used to be rotatably mounted on the second fixed member 330.
[0049] In this embodiment, the first hinge 340 includes a first hinge body and a second hinge body, the second hinge body is rotatably mounted on the first hinge body, the first hinge body is fixedly mounted on the first fixing member 320 by screws, and the second hinge body is fixedly mounted at the first connection end of the connecting member 310 by screws, so that the connecting member 310 is rotatably mounted on the first fixing member 320; the second hinge 350 includes a third hinge body and a fourth hinge body, the fourth hinge body is rotatably mounted on the third hinge body, the third hinge body is fixedly mounted on the second fixing member 330 by screws, and the fourth hinge body is fixedly mounted at the second connection end of the connecting member 310 by screws, so that the connecting member 310 is rotatably mounted on the second fixing member 330. By using the first hinge 340 and the second hinge 350, both of which are hinges, the movable blackboard 200 can be moved smoothly, so that the movable blackboard 200 can be smoothly switched between the coplanar state and the covering state. In addition, in order to improve the smoothness of the movement of the movable blackboard 200, the number of connecting parts 300 is greater than or equal to two groups, and multiple groups of connecting parts 300 are arranged at intervals along the height direction of the fixed blackboard 100. At the same time, in order to enhance the strength of the multiple first fixing members 320, two adjacent first fixing members 320 are fixedly connected, and in order to enhance the strength of the multiple second fixing members 330, two adjacent second fixing members 330 are fixedly connected.
[0050] Reference Figures 9 to 11In the second embodiment, the first hinge 340 and the second hinge 350 are both hinge pins; a first hinge hole is provided on the first connecting end of the connecting member 310, a first fixing hole is provided on the first fixing member 320, the first hinge 340 is inserted into the first hinge hole and the first fixing hole, and the connecting member 310 is used to be rotatably installed on the first fixing member 320 around the axis of the first hinge 340; a second hinge hole is provided on the second connecting end of the connecting member 310, a second fixing hole is provided on the second fixing member 330, the second hinge 350 is inserted into the second hinge hole and the second fixing hole, and the connecting member 310 is used to be rotatably installed on the second fixing member 330 around the axis of the second hinge 350.
[0051] In this embodiment, the first hinge 340 can be fixedly inserted in the first fixing hole by means of threaded fitting or interference fitting, and can be rotatably installed in the first hinge hole, or can be rotatably inserted in the first fixing hole, and can be fixedly inserted in the first hinge hole by means of threaded fitting or interference fitting, and it is only necessary to make the connecting member 310 rotatably installed on the first fixing member 320 around the axis of the first hinge 340. The second hinge 350 can be fixedly inserted in the second fixing hole by means of threaded fitting or interference fitting, and can be rotatably inserted in the second fixing hole, and can be fixedly inserted in the second hinge hole by means of threaded fitting or interference fitting, and it is only necessary to make the connecting member 310 rotatably installed on the second fixing member 330 around the axis of the second hinge 350. By using the first hinge 340 and the second hinge 350, both of which are hinge pins, the movable blackboard 200 can be moved smoothly, so that the movable blackboard 200 can be smoothly switched between the coplanar state and the covering state.
[0052] Reference Figures 9 to 11 In addition, in order to improve the smoothness of the movement of the movable blackboard 200, the connecting part 300 includes a plurality of connecting members 310, and the connecting members 310 are connecting rods or connecting plates, and the plurality of connecting members 310 are parallel to each other; the number of the connecting members 310 can be two, and the two connecting members 310 are respectively arranged in a one-to-one correspondence with the two ends of the first fixing member 320, and are also arranged in a one-to-one correspondence with the two ends of the second fixing member 330. Of course, the number of the connecting members 310 can also be three or more; at the same time, in order to further improve the smoothness of the movement of the movable blackboard 200, the number of the connecting parts 300 is two, and one of the two connecting parts 300 is located at the top of the fixed blackboard 100, and the other connecting part 300 is located at the bottom of the fixed blackboard 100.
[0053] Reference Figure 4 and Fig. 9As an optional method in the embodiment of the present application, the blackboard assembly includes a plurality of connecting parts 300, and the plurality of connecting parts 300 are arranged at intervals along the height direction of the fixed blackboard 100.
[0054] In this optional manner, when the number of connecting members 310 is one, the number of connecting parts 300 is greater than or equal to two. Specifically, the number of connecting parts 300 is three, and the three connecting parts 300 are evenly spaced along the height direction of the fixed blackboard 100. The upper surface of the first fixing member 320 in the upper connecting part 300 of the three connecting parts 300 is flush with the upper surface of the fixed blackboard 100, the upper surface of the second fixing member 330 in the upper connecting part 300 is flush with the upper surface of the movable blackboard 200, the lower surface of the first fixing member 320 in the lower connecting part 300 of the three connecting parts 300 is flush with the lower surface of the fixed blackboard 100, and the lower surface of the second fixing member 330 in the lower connecting part 300 is flush with the lower surface of the movable blackboard The lower surface of the board 200 is flush; in the case where there are multiple connecting parts 310, the number of connecting parts 300 is two, the upper surface of the first fixing part 320 in the upper connecting part 300 of the two connecting parts 300 is slightly higher than the upper surface of the fixed blackboard 100, the upper surface of the second fixing part 330 in the upper connecting part 300 is slightly higher than the upper surface of the movable blackboard 200, the lower surface of the first fixing part 320 in the lower connecting part 300 of the three connecting parts 300 is slightly lower than the lower surface of the fixed blackboard 100, and the lower surface of the second fixing part 330 in the lower connecting part 300 is slightly lower than the lower surface of the movable blackboard 200; the multiple connecting parts 300 further improve the smoothness and stability of the movement of the movable blackboard 200.
[0055] Reference Figure 1 , Figure 2 as well as Figures 7 to 9 As an optional method in the embodiment of the present application, two blackboard assemblies are provided, one blackboard assembly is located on one side of the other blackboard assembly, and the two movable blackboards 200 are used to move closer to or farther away from each other. The two blackboard assemblies provided ensure flexibility and adaptability in a limited activity area, thereby improving teaching efficiency.
[0056] Reference Figures 1 to 11 According to another aspect of the present application, an embodiment of the present application also provides a smart blackboard, which includes a display screen 400 and the above-mentioned blackboard structure. The display screen 400 is located on one side of the fixed blackboard 100. When the movable blackboard 200 is in a coplanar state, the back of the movable blackboard 200 at least partially covers the display screen 400.
[0057] In an embodiment of the present application, when the movable blackboard 200 is in a coplanar state, the back of the movable blackboard 200 covers the display screen 400 to prevent the display screen 400 from being exposed; when the movable blackboard 200 is in a covering state, the display screen 400 is completely exposed to ensure normal use of the display screen 400.
[0058] In summary, the blackboard structure and smart blackboard provided by the present embodiment have at least the following beneficial technical effects: by adopting the connecting member 310 in the present application to drive the movable blackboard 200 to move on the fixed blackboard 100, not only can the writing surface of the movable blackboard 200 and the writing surface of the fixed blackboard 100 be located on the same plane to expand the writing range, but the back of the movable blackboard 200 can also cover the writing surface of the fixed blackboard 100 to hide the fixed blackboard 100, thereby avoiding the need for the movable blackboard 200 to be used in conjunction with a slide rail that is prone to powder accumulation in order to complete the movement on the fixed blackboard 100, thereby ensuring the smoothness of the movement of the movable blackboard 200 and extending the service life of the blackboard structure.
[0059] The above is only a preferred implementation of the present application, but the protection scope of the present application is not limited thereto. It should be pointed out that for those skilled in the art, several equivalent obvious variations and / or equivalent replacements can be made without departing from the technical principles of the present application. These obvious variations and / or equivalent replacements should also be regarded as the protection scope of the present application.
Claims
1. A blackboard structure, characterized in that: The invention comprises a blackboard assembly, wherein the blackboard assembly comprises a fixed blackboard (100), a movable blackboard (200) and a connecting portion (300); the fixed blackboard (100) and the movable blackboard (200) both have a writing surface and a back surface arranged opposite to each other; the movable blackboard (200) has a coplanar state and a covering state; when the movable blackboard (200) is in the coplanar state, the writing surface of the movable blackboard (200) is coplanar with the writing surface of the fixed blackboard (100); when the movable blackboard (200) is in the covering state, the back surface of the movable blackboard (200) at least partially covers the writing surface of the fixed blackboard (100); The connecting portion (300) comprises a connecting member (310), wherein the connecting member (310) has a first connecting end and a second connecting end, wherein the first connecting end of the connecting member (310) is hingedly mounted on the fixed blackboard (100), and the second connecting end of the connecting member (310) is hingedly mounted on the movable blackboard (200), and the movable blackboard (200) is switched between the coplanar state and the covering state via the connecting member (310).
2. The blackboard structure according to claim 1, characterized in that: The first connecting end of the connecting member (310) is hingedly mounted on the back side of the fixed blackboard (100), and the second connecting end of the connecting member (310) is hingedly mounted on the back side of the movable blackboard (200).
3. The blackboard structure according to claim 2, characterized in that: The connecting part (300) further comprises a first fixing member (320) and a second fixing member (330), wherein the first fixing member (320) is mounted on the back side of the fixed blackboard (100), and the first connecting end of the connecting member (310) is hingedly mounted on the first fixing member (320); the second fixing member (330) is mounted on the back side of the movable blackboard (200), and the second connecting end of the connecting member (310) is hingedly mounted on the second fixing member (330).
4. The blackboard structure according to claim 3, characterized in that: The connecting portion (300) further comprises a first hinge (340) and a second hinge (350), wherein the first connecting end of the connecting member (310) is hingedly mounted on the first fixing member (320) via the first hinge (340), and the second connecting end of the connecting member (310) is hingedly mounted on the second fixing member (330) via the second hinge (350).
5. The blackboard structure according to claim 4, characterized in that: The first hinge (340) and the second hinge (350) are both hinges; the first hinge (340) is connected to the first fixing member (320), the first hinge (340) is connected to the first connecting end of the connecting member (310), and the connecting member (310) is used to be rotatably mounted on the first fixing member (320); The second hinged member (350) is connected to the second fixed member (330), and the second hinged member (350) is connected to the second connecting end of the connecting member (310). The connecting member (310) is used for being rotatably mounted on the second fixed member (330).
6. The blackboard structure according to claim 4, characterized in that: The first hinged member (340) and the second hinged member (350) are both hinge pins; a first hinge hole is provided on the first connecting end of the connecting member (310), a first fixing hole is provided on the first fixing member (320), the first hinged member (340) is inserted into the first hinge hole and the first fixing hole, and the connecting member (310) is used to be rotatably mounted on the first fixing member (320) around the axis of the first hinged member (340); A second hinge hole is provided on the second connecting end of the connecting member (310), a second fixing hole is provided on the second fixing member (330), the second hinge member (350) is inserted into the second hinge hole and the second fixing hole, and the connecting member (310) is used to be rotatably mounted on the second fixing member (330) around the axis of the second hinge member (350).
7. The blackboard structure according to claim 6, characterized in that: The connecting portion (300) comprises a plurality of connecting members (310), wherein the connecting members (310) are connecting plates or connecting rods, and the plurality of connecting members (310) are parallel to each other.
8. The blackboard structure according to any one of claims 1 to 7, characterized in that: The blackboard assembly comprises a plurality of the connecting parts (300), and the plurality of the connecting parts (300) are arranged at intervals along the height direction of the fixed blackboard (100).
9. The blackboard structure according to any one of claims 1 to 7, characterized in that: Two blackboard assemblies are provided, one of which is located on one side of the other blackboard assembly, and the two movable blackboards (200) are used to move closer to or farther away from each other.
10. A smart blackboard, characterized in that: The smart blackboard comprises a display screen (400) and a blackboard structure according to any one of claims 1 to 9, wherein the display screen (400) is located at One side of the fixed blackboard (100), when the movable blackboard (200) is in the coplanar state, The back side of the movable blackboard (200) at least partially covers the display screen (400).