CN219997694U

CN219997694U - Intelligent blackboard

Info

Publication number: CN219997694U
Application number: CN202320213605.3U
Authority: CN
Inventors: 戴书华
Original assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Current assignee: Guangzhou Shiyuan Electronics Thecnology Co Ltd; Guangzhou Shirui Electronics Co Ltd
Priority date: 2023-02-13
Filing date: 2023-02-13
Publication date: 2023-11-10
Anticipated expiration: 2033-02-13

Abstract

The utility model relates to the technical field of terminal equipment, and particularly discloses an intelligent blackboard which comprises a main screen, an auxiliary screen and a positioning assembly; the positioning assembly includes: the first positioning piece is fixedly arranged at the edge of the main screen and is provided with a positioning block, and a positioning column is convexly arranged on the positioning block; the second positioning piece is fixedly arranged at the edge of the auxiliary screen and is provided with a positioning plate, a positioning hole is formed in the positioning plate, and the positioning block is abutted with the positioning plate when the positioning column is correspondingly connected with the positioning hole; the connecting piece is detachably connected between the first positioning piece and the second positioning piece so as to fix the first positioning piece and the second positioning piece. The positioning component of the intelligent blackboard disclosed by the utility model has the advantages of small occupied volume, low cost and simple locking operation, is beneficial to improving the assembly efficiency of the intelligent blackboard, and can not only change the display orientation angle, but also ensure the writing stability.

Description

Intelligent blackboard

Technical Field

The utility model relates to the technical field of terminal equipment, in particular to an intelligent blackboard.

Background

The intelligent blackboard uses the display screen as a blackboard through a touch technology, so that a writing function can be realized on the display screen, and functions of watching videos, animations, pictures and the like can be realized. Limited by the size processing limit of the display panel, the writable blackboard (hereinafter referred to as a secondary screen) can be spliced on the display screen (hereinafter referred to as a primary screen) to form a larger intelligent blackboard in order to meet the larger writing requirement. Currently, a fixing device is generally provided between adjacent main and sub-screens to prevent the sub-screen from loosening or rotating to affect writing stability. The common fixing device is generally a hook and a pull buckle, the hook is required to be arranged on the edge of the main screen, the pull buckle is arranged on the auxiliary screen, the pull hook is locked through the pull ring and the lock catch of the pull buckle, and the pull ring is further tensioned, so that the main screen and the auxiliary screen are locked.

However, the occupation volume of the pull buckle and the hook is large, the cost is high, the operation of the pull buckle is complex, and the assembly efficiency of the intelligent blackboard is reduced.

Disclosure of Invention

The aim of the embodiment of the utility model is that: the intelligent blackboard can solve the problems that in the prior art, the intelligent blackboard occupies a large volume and locking and assembling operations are complex.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in one aspect, a smart blackboard is provided, comprising a main screen, a secondary screen and a positioning assembly;

the positioning assembly includes:

the first positioning piece is fixedly arranged at the edge of the main screen and is provided with a positioning block, and a positioning column is convexly arranged on the positioning block;

the second positioning piece is fixedly arranged at the edge of the auxiliary screen and is provided with a positioning plate, a positioning hole is formed in the positioning plate, and the positioning block is abutted with the positioning plate when the positioning column is correspondingly connected with the positioning hole;

the connecting piece is detachably connected between the first positioning piece and the second positioning piece so as to fix the first positioning piece and the second positioning piece.

As a preferable scheme of the intelligent blackboard, the second positioning piece is further provided with a limiting plate, the limiting plate and the positioning plate form a limiting groove, and the positioning block is arranged in the limiting groove when the positioning column is correspondingly connected with the positioning hole.

As a preferable scheme of the intelligent blackboard, the positioning plate is provided with a stop plate in an extending mode, and the stop plate is used for abutting against the edge of the main screen so as to limit the relative rotation of the first positioning piece and the second positioning piece.

As a preferable scheme of the intelligent blackboard, the second positioning piece is further provided with a connecting frame, the connecting frame is fixedly connected with the positioning plate, and the connecting frame is used for detachably connecting the auxiliary screen.

As a preferable scheme of the intelligent blackboard, the first positioning piece is further provided with a connecting block fixedly connected with the positioning block, and the connecting block is used for detachably connecting the main screen.

As a preferable scheme of the intelligent blackboard, a first connecting hole is formed in the first positioning piece, a second connecting hole is formed in the second positioning piece, and the connecting piece penetrates through the first connecting hole and the second connecting hole.

As a preferable scheme of the intelligent blackboard, the connecting piece is a screw, a threaded structure is arranged in the first connecting hole and/or the second connecting hole, and the connecting piece is in threaded connection with the first connecting hole and/or the second connecting hole.

As a preferable scheme of the intelligent blackboard, the connecting piece is a bolt assembly, a screw rod of the bolt assembly penetrates through the first connecting hole and the second connecting hole, and a bolt head and a nut of the bolt assembly lock the first positioning piece and the second positioning piece.

As a preferable scheme of the intelligent blackboard, the end part of the positioning column is provided with a guiding structure, and the guiding structure is used for guiding the positioning column to enter the positioning hole.

As a preferable scheme of the intelligent blackboard, the side face of the positioning column is provided with a conical surface structure, and the conical surface structure is used for guiding the hole wall of the positioning hole to move to abut against the first positioning piece along the side face of the positioning column.

As a preferred aspect of the smart blackboard, the positioning assembly further includes:

the positioning pin is convexly arranged at the edge of the main screen;

the positioning groove is formed in the edge of the auxiliary screen, and the positioning pin is clamped in the positioning groove when the positioning column is correspondingly connected with the positioning hole.

The beneficial effects of the utility model are as follows:

the positioning assembly is arranged between the main screen and the auxiliary screen, so that the relative positions of the main screen and the auxiliary screen can be locked. The positioning assembly comprises a first positioning piece fixedly arranged at the edge of the main screen, a second positioning piece fixedly arranged at the edge of the auxiliary screen and a connecting piece used for detachably connecting the first positioning piece and the second positioning piece. The first positioning piece is provided with a positioning block, the positioning block is provided with a positioning column in a protruding mode, the second positioning piece is provided with a positioning plate, the positioning plate is correspondingly provided with a positioning hole, the positioning column can align with the positioning hole and penetrate through the positioning hole, the positioning column can move along the edge of the positioning hole to be correspondingly connected, and when the positioning column is correspondingly connected with the positioning hole, the positioning block is in butt joint with the positioning plate so as to conveniently realize the pivot joint of the first positioning piece and the second positioning piece. At this time, the sub-screen can rotate relative to the main screen, thereby adjusting the relative orientation angle of the main screen and the sub-screen.

If the mutual orientation angle of the main screen and the auxiliary screen needs to be locked, for example, the main screen and the auxiliary screen are kept to be arranged in parallel, the main screen and the auxiliary screen are rotated relatively until the display panel of the main screen is parallel to the writing panel of the auxiliary screen, and then the connecting piece is arranged between the first positioning piece and the second positioning piece to fix the first positioning piece and the second positioning piece.

Because the main screen and the auxiliary screen are pivoted only through the corresponding connection of the positioning columns and the positioning holes, the occupied volume and the assembly operation can be reduced, and the material cost and the process cost are further reduced. In addition, the main screen and the auxiliary screen can also realize mutual rotation through the pin joint of the first locating piece and the second locating piece, and the display effect of changing the relative user orientation angle of the main screen and the auxiliary screen is achieved. If the main screen or the auxiliary screen is required to be written, the main screen and the auxiliary screen are rotated to the angles parallel to each other, and then the connecting piece is arranged to lock the main screen or the auxiliary screen, so that the relative positions of the main screen and the auxiliary screen are locked, and the effect of stably writing on the main screen or the auxiliary screen is achieved.

Therefore, the positioning component of the intelligent blackboard disclosed by the utility model is small in occupied volume, low in cost and simple in locking operation, is beneficial to improving the assembly efficiency of the intelligent blackboard, and can not only change the display orientation angle, but also ensure the writing stability.

Drawings

The utility model is described in further detail below with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of a positioning assembly according to an embodiment of the utility model.

Fig. 2 is a schematic view of a partial structure of a smart blackboard under the smart blackboard according to an embodiment of the present utility model.

Fig. 3 is a schematic structural diagram of a second positioning member according to an embodiment of the utility model.

Fig. 4 is a schematic structural diagram of a positioning assembly according to another embodiment of the present utility model.

Fig. 5 is a schematic view of a part of a smart blackboard according to another embodiment of the present utility model.

Fig. 6 is a schematic structural diagram of a second positioning member according to another embodiment of the present utility model.

Fig. 7 is a schematic structural diagram of a positioning assembly according to another embodiment of the present utility model.

Fig. 8 is a schematic view showing a partial structure of a smart blackboard in the middle according to another embodiment of the present utility model.

Fig. 9 is a front view of a smart blackboard according to an embodiment of the present utility model.

Fig. 10 is a schematic diagram of a back structure of a smart blackboard according to an embodiment of the utility model.

In the figure:

1. a main screen; 2. a secondary screen; 3. a positioning assembly;

31. a first positioning member; 311. a positioning block; 312. positioning columns; 313. a connecting block; 314. a first connection hole; 315. a guide structure; 316. a conical surface structure;

32. a second positioning member; 321. a positioning plate; 322. positioning holes; 323. a limiting plate; 324. a stop plate; 325. a connecting frame; 326. a second connection hole;

33. a connecting piece; 34. a positioning pin; 35. and a positioning groove.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model are described in further detail below, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The intelligent blackboard uses the display screen as a blackboard through a touch technology, so that a writing function can be realized on the display screen, and functions of watching videos, animations, pictures and the like can be realized. But is limited by the size processing limitation of the display panel, in order to meet the larger writing requirement, a writable blackboard (hereinafter referred to as a secondary screen for short) can be spliced on the display screen (hereinafter referred to as a primary screen for short), so that a larger intelligent blackboard is formed. Currently, a fixing device is generally arranged between the main screen and the auxiliary screen to prevent the auxiliary screen from loosening or rotating to influence writing stability. The common fixing device is generally a hook and a pull buckle, the hook is required to be arranged on the edge of the main screen, the pull buckle is arranged on the auxiliary screen, the pull hook is locked through the pull ring and the lock catch of the pull buckle, and the pull ring is further tensioned, so that the main screen and the auxiliary screen are locked. But the occupation volume of the pull buckle and the hook is large, the locking and assembling operation is complex, the occupation volume of the intelligent blackboard is indirectly increased, and the assembling operation complexity is improved.

In order to solve the problems of large occupation volume and complex locking and assembling operations of the fixing device of the intelligent blackboard in the prior art, as shown in fig. 1 and 2, the embodiment provides an intelligent blackboard, which comprises a main screen 1, a secondary screen 2 and a positioning component 3;

wherein the positioning assembly 3 comprises:

the first positioning piece 31 is fixedly arranged at the edge of the main screen 1, the first positioning piece 31 is provided with a positioning block 311, and a positioning column 312 is convexly arranged on the positioning block 311;

the second positioning piece 32 is fixedly arranged at the edge of the auxiliary screen 2, the second positioning piece 32 is provided with a positioning plate 321, a positioning hole 322 is formed in the positioning plate 321, and the positioning block 311 is abutted against the positioning plate 321 when the positioning hole 322 is correspondingly connected with the positioning column 312;

the connecting piece 33 is detachably connected between the first positioning piece 31 and the second positioning piece 32 to fix the first positioning piece 31 and the second positioning piece 32.

The utility model can lock the relative positions of the main screen 1 and the auxiliary screen 2 by arranging the positioning component 3 between the main screen 1 and the auxiliary screen 2. Wherein, the positioning assembly 3 comprises a first positioning piece 31 fixedly arranged at the edge of the main screen 1, a second positioning piece 32 fixedly arranged at the edge of the auxiliary screen 2 and a connecting piece 33 for detachably connecting the first positioning piece 31 and the second positioning piece 32. The first positioning piece 31 is provided with a positioning block 311, the positioning block 311 is provided with a positioning column 312 in a protruding mode, the second positioning piece 32 is provided with a positioning plate 321, the positioning plate 321 is correspondingly provided with a positioning hole 322, the positioning column 312 can align with the positioning hole 322 and penetrate through the positioning hole 322, the positioning column 312 can move along the edge of the positioning hole 322 to be correspondingly connected, and when the positioning column 312 is correspondingly connected with the positioning hole 322, the positioning block 311 is abutted with the positioning plate 321 so as to conveniently realize the pivoting of the first positioning piece 31 and the second positioning piece 32. At this time, the sub-screen 2 can be rotated with respect to the main screen 1, thereby adjusting the relative orientation angle of the main screen 1 and the sub-screen 2.

If the mutual orientation angle of the main screen 1 and the auxiliary screen 2 needs to be locked, for example, the main screen 1 and the auxiliary screen 2 are kept to be arranged in parallel (as shown in fig. 9), the main screen 1 and the auxiliary screen 2 are rotated relatively until the display panel of the main screen 1 is parallel to the writing panel of the auxiliary screen 2, and then the connecting piece 33 is arranged between the first positioning piece 31 and the second positioning piece 32, so that the first positioning piece 31 and the second positioning piece 32 are fixed.

Because the main screen 1 and the auxiliary screen 2 are pivoted only through the corresponding connection of the positioning column 312 and the positioning hole 322, the occupied volume and the assembly operation can be reduced, and the material cost and the process cost are further reduced. In addition, the main screen 1 and the auxiliary screen 2 can also realize mutual rotation through the pin joint of the first positioning piece 31 and the second positioning piece 32, so as to play a role in changing the display effect of the relative user orientation angle of the main screen 1 and the auxiliary screen 2. If the user needs to write on the main screen 1 or the auxiliary screen 2, the main screen 1 and the auxiliary screen 2 are rotated to the angles parallel to each other, and the connecting piece 33 is further arranged to lock the main screen 1 or the auxiliary screen 2, so that the relative positions of the main screen 1 and the auxiliary screen 2 are locked, and the effect of stably writing on the main screen 1 or the auxiliary screen 2 is achieved.

Therefore, the positioning component 3 of the intelligent blackboard disclosed by the utility model is small in occupied volume, low in cost and simple in locking operation, is beneficial to improving the assembly efficiency of the intelligent blackboard, and can not only change the display orientation angle, but also ensure the writing stability.

In this embodiment, when the positioning post 312 is correspondingly connected to the positioning hole 322, the positioning block 311 abuts against the positioning plate 321, and under the action of gravity, the positioning block 311 is kept abutting against the positioning plate 321 and the positioning post 312 is located in the positioning hole 322, so as to achieve the effect of connecting the main screen 1 and the auxiliary screen 2. By increasing the contact area between the positioning plate 321 and the positioning block 311, the effect of dispersing the pressure from the main screen 1 and the auxiliary screen 2 is also achieved, the bearing load of the first positioning piece 31 and the second positioning piece 32 is improved, and the service life is prolonged.

It should be noted that the main screen 1 may be fixed to a wall surface or a bracket, and the sub-screen 2 may be fixed to the main screen 1 by the positioning assembly 3. To counteract the force of gravity, the positioning posts 312 of the first positioning member 31 are disposed away from the earth center, while the second positioning member 32 is disposed above the first positioning member 31. After positioning the positioning hole 322 of the second positioning member 32 on the positioning post 312 during installation, the positioning hole 322 of the second positioning member 32 is moved down along the side surface of the positioning post 312 until the positioning block 311 of the first positioning member 31 abuts against the positioning plate 321 of the second positioning member 32, and at this time, the positioning post 312 is correspondingly connected with the positioning hole 322, so that the first positioning member 31 of the main screen 1 can support the auxiliary screen 2 fixedly arranged with the second positioning member 32. On the contrary, if the auxiliary screen 2 is fixed to the wall or the support, and the main screen 1 is fixed to the main screen 1 through the positioning assembly 3, the first positioning member 31 is correspondingly disposed above the second positioning member 32, and the positioning column 312 of the first positioning member 31 is disposed towards the earth center, so that specific principles and effects will not be repeated.

As for the fixing arrangement of the first positioning member 31 and the main screen 1, welding, fixing by screws or bonding may be adopted, or the first positioning member 31 and the frame of the main screen 1 may be integrally arranged, which is not particularly limited in this embodiment. Similarly, the fixing arrangement of the second positioning member 32 and the secondary screen 2 may be the above-mentioned manner, and the present embodiment is not limited thereto.

In order to further reduce the number and occupied volume of the positioning components 3, the positioning components 3 may be disposed in corner areas (as shown in fig. 10) of the main screen 1 and the auxiliary screen 2, for example, the positioning components 3 may be disposed only at upper corners and lower corners of the main screen 1 and the auxiliary screen 2, so that the frames of the main screen 1 and the auxiliary screen 2 can be supported, stress concentration in middle portions of the frames is reduced, and damage caused by internal force to the main screen 1 and the auxiliary screen 2 is reduced.

In a preferred embodiment, the connection 33 may be provided in only one positioning assembly 3 between the primary screen 1 and the secondary screen 2, such as the positioning assembly 3 located at the lower corners of the primary screen 1 and the secondary screen 2 (as shown in fig. 2 and 5). Since one positioning assembly 3 is provided with the connecting piece 33 to limit the relative rotation of the main screen 1 and the auxiliary screen 2, the positioning assembly 3 at the upper corner can only comprise the first positioning piece 31 and the second positioning piece 32, so that the operation times of locking and unlocking can be reduced, and the assembly efficiency of the main screen 1 and the auxiliary screen 2 can be improved.

Preferably, referring to fig. 4, the second positioning member 32 further has a limiting plate 323, and a limiting groove is formed with the positioning plate 321 by the limiting plate 323. When the positioning column 312 is correspondingly connected with the positioning hole 322, the positioning block 311 is arranged in the limiting groove, so that the limiting groove can limit the movement of the positioning block 311, the positioning block 311 is restrained by the limiting plate 323 and the positioning plate 321, the deviation between the positioning column 312 and the positioning hole 322 is reduced, the axial pressure on the positioning column 312 is also reduced, and the service life of the positioning column 312 is prolonged.

Still preferably, referring to fig. 1 and 3, the positioning plate 321 is extended with a stop plate 324, and the edge of the main screen 1 is abutted by the stop plate 324 to limit the relative rotation of the first positioning member 31 and the second positioning member 32, so as to assist the locking effect of the connecting member 33 on the first positioning member 31 and the second positioning member 32. In addition, the edge of the stop plate 324 and the edge of the positioning plate 321 form a groove corresponding to the edge profile of the main screen 1, which has the effect of guiding the second positioning member 32 to move to the first positioning member 31 along the edge of the main screen 1, so as to accelerate the assembly efficiency of the first positioning member 31 and the second positioning member 32.

Still preferably, referring to fig. 3, the second positioning member 32 further has a connection frame 325, the connection frame 325 is fixedly connected with the positioning plate 321, and the sub-screen 2 is detachably connected by the connection frame 325, so that the second positioning member 32 can be conveniently mounted and dismounted on the sub-screen 2, and the second positioning member 32 can be conveniently replaced later. In addition, the mounting position of the second positioning member 32 relative to the sub-screen 2 is also facilitated to be adjusted, so that the relative fixed position of the sub-screen 2 relative to the main screen 1 is adjusted. The detachable connection between the connection frame 325 and the secondary screen 2 in this embodiment may be realized by a screw, or may be realized by a clip connection between a clip and a clip hole, which is not limited in this embodiment.

Preferably, referring to fig. 6, the positioning plate 321, the limiting plate 323 and the connection frame 325 in the second positioning member 32 are integrally formed through a sheet metal process.

In addition, referring to fig. 1 and 4, the first positioning member 31 may be provided with a connection block 313 to fixedly connect the positioning block 311, and the connection block 313 may be detachably connected to the edge of the main screen 1, thereby improving the portability of the first positioning member 31 to be attached to and detached from the main screen 1 while maintaining the connection strength. Optionally, the connection block 313 and the positioning block 311 are integrally arranged, and the edge of the connection block 313 and the edge of the main screen 1 form a frame of the main screen 1, so that the occupied volume of the first positioning piece 31 is reduced, and meanwhile, the gravity of the auxiliary screen 2 on the second positioning piece 32 is distributed on the frame of the main screen 1, so that the load capacity and the service life of the first positioning piece 31 are improved. Preferably, the connection block 313 is provided with a clamping structure, and the frame is formed by clamping the clamping structure with the edge of the main screen 1.

With respect to the locking structure of the connecting piece 33 and the first positioning piece 31 and the second positioning piece 32, particularly, referring to fig. 1, the first positioning piece 31 is provided with a first connecting hole 314, the second positioning piece 32 is provided with a second connecting hole 326, so that the connecting piece 33 can be arranged in the first connecting hole 314 and the second connecting hole 326 in a penetrating manner, and the first positioning piece 31 and the second positioning piece 32 can be locked by combining the corresponding connection of the positioning column 312 and the positioning hole 322, thereby limiting the relative rotation of the main screen 1 and the auxiliary screen 2.

In a specific embodiment, the connecting member 33 is a screw, and a threaded structure (not shown) is disposed in the first connecting hole 314, so that the connecting member 33 is screwed with the first connecting hole 314 when penetrating the first connecting hole 314, and the connecting member 33 and the first positioning member 31 can be fixed. Alternatively, a threaded structure is provided in the second connecting hole 326, and the connecting member 33 can be screwed with the second connecting hole 326 when the connecting member 33 is inserted into the second connecting hole 326, thereby securing the connecting member 33 and the second positioning member 32. Preferably, screw structures are provided in both the first and second connection holes 314 and 326 such that the connection member 33 is screw-coupled with both the first and second connection holes 314 and 326, further improving the coupling strength of the connection member 33 with the first and second connection holes 314 and 326. In the present embodiment, the connection strength of the first positioning member 31 and the second positioning member 32 can be changed by adjusting the tightness of the screw and the screw structure.

In another specific embodiment, the connection member 33 is a bolt assembly (not shown in the drawings), the bolt assembly includes a bolt body and a nut, and the nut is screwed into the bolt body after the screw rod of the bolt body passes through the first connection hole 314 and the second connection hole 326, so that the bolt head and the nut of the bolt body clamp the first positioning member 31 and the second positioning member 32, thereby locking the first connection hole 314 and the second connection hole 326. The bolt assembly can be tightened or loosened by driving the bolt head or nut in a forward or reverse direction so as to achieve the detachable connection of the connection member 33 with the first and second positioning members 31 and 32.

In particular, referring to fig. 1 and 4, the end of the positioning post 312 is provided with a guiding structure 315, and the positioning post 312 is guided into the positioning hole 322 by the guiding structure 315, which is beneficial to improving the assembly efficiency of the first positioning member 31 and the second positioning member 32. In this embodiment, the guiding structure 315 may be an inclined plane, a conical plane or a rounded transition surface, which is not limited in this embodiment.

Optionally, referring to fig. 1 and 4, a tapered surface structure 316 is disposed on a side surface of the positioning column 312, and the tapered surface structure 316 can guide the hole wall of the positioning hole 322 to move along the side surface of the positioning column 312 to abut against the first positioning element 31, so that after the end portion of the positioning column 312 enters the positioning hole 322, the assembly efficiency of the second positioning element 32 and the first positioning element 31 is further increased by using the guiding action of the positioning hole 322 and the tapered surface structure 316. Further, when the bottom width of the conical surface structure 316 is greater than the width of the positioning hole 322, the positioning column 312 and the positioning hole 322 form an interference fit under the action of gravity, so as to improve the connection strength of the first connecting piece 33 and the second connecting piece 33.

In a preferred embodiment, referring to fig. 7 and 8, the positioning assembly 3 further comprises a positioning pin 34 and a positioning groove 35, wherein the positioning pin 34 is protruded at the edge of the main screen 1, and the positioning groove 35 is provided at the edge of the sub-screen 2. When the main screen 1 and the auxiliary screen 2 are correspondingly connected with the positioning holes 322 through the positioning columns 312 in the first positioning piece 31 and the second positioning piece 32, the positioning pins 34 are also clamped in the positioning grooves 35, and the mutual rotation angle of the first positioning piece 31 and the second positioning piece 32 can be limited through the clamping of the positioning grooves 35 and the positioning pins 34. The groove width of the positioning groove 35 in the present embodiment may be determined according to a limited rotation angle range, for example, if rotation is prohibited, the groove width of the positioning groove 35 is equal to the thickness of the positioning pin 34, and if rotation at a certain angle is allowed, the groove width of the positioning groove 35 is slightly larger than the thickness of the positioning pin 34, and the groove width of the positioning groove 35 is not specifically limited in the present embodiment.

Furthermore, in the intelligent blackboard of the utility model, the auxiliary screen 2 can be replaced by a blackboard which is only used for writing, so as to achieve better display effect.

In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and the like are merely for convenience of description and to simplify the operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for providing a special meaning.

In the description herein, reference to the term "one embodiment," "an example," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in the foregoing embodiments, and that the embodiments described in the foregoing embodiments may be combined appropriately to form other embodiments that will be understood by those skilled in the art.

The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.

Claims

1. An intelligent blackboard is characterized by comprising a main screen (1), an auxiliary screen (2) and a positioning component (3);

the positioning assembly (3) comprises:

the first positioning piece (31) is fixedly arranged at the edge of the main screen (1), the first positioning piece (31) is provided with a positioning block (311), and a positioning column (312) is convexly arranged on the positioning block (311);

the second positioning piece (32) is fixedly arranged at the edge of the auxiliary screen (2), the second positioning piece (32) is provided with a positioning plate (321), a positioning hole (322) is formed in the positioning plate (321), and the positioning block (311) is abutted to the positioning plate (321) when the positioning column (312) is correspondingly connected with the positioning hole (322);

and the connecting piece (33) is detachably connected between the first positioning piece (31) and the second positioning piece (32) so as to fix the first positioning piece (31) and the second positioning piece (32).

2. The intelligent blackboard according to claim 1, wherein the second positioning member (32) further has a limiting plate (323), the limiting plate (323) and the positioning plate (321) form a limiting groove, and the positioning block (311) is disposed in the limiting groove when the positioning column (312) is correspondingly connected with the positioning hole (322).

3. The smart blackboard according to claim 1, characterized in that the positioning plate (321) is provided with a stop plate (324) in extension, the stop plate (324) being adapted to abut against an edge of the main screen (1) to limit the relative rotation of the first positioning member (31) and the second positioning member (32).

4. The smart blackboard according to claim 1, characterized in that the second positioning member (32) further has a connection frame (325), the connection frame (325) being fixedly connected to the positioning plate (321), the connection frame (325) being adapted to detachably connect the sub-screen (2).

5. The smart blackboard according to claim 1, characterized in that the first positioning member (31) further has a connection block (313) fixedly connected to the positioning block (311), the connection block (313) being adapted to detachably connect to the main screen (1).

6. The intelligent blackboard according to claim 1, wherein the first positioning member (31) is provided with a first connecting hole (314), the second positioning member (32) is provided with a second connecting hole (326), and the connecting member (33) is arranged through the first connecting hole (314) and the second connecting hole (326).

7. The smart blackboard according to claim 6, characterized in that the connection member (33) is a screw, a threaded structure is provided in the first connection hole (314) and/or the second connection hole (326), and the connection member (33) is in threaded connection with the first connection hole (314) and/or the second connection hole (326).

8. The smart blackboard according to any one of claims 1-7, characterized in that the end of the positioning post (312) is provided with a guiding structure (315), the guiding structure (315) being used for guiding the positioning post (312) into the positioning hole (322).

9. The smart blackboard according to any one of claims 1-7, characterized in that the side of the positioning post (312) is provided with a conical surface structure (316), the conical surface structure (316) being adapted to guide the hole wall of the positioning hole (322) to move along the side of the positioning post (312) to abut the first positioning member (31).

10. The smart blackboard according to any one of claims 1 to 7, characterized in that the positioning assembly (3) further comprises:

the positioning pin (34) is convexly arranged at the edge of the main screen (1);

the positioning groove (35) is formed in the edge of the auxiliary screen (2), and the positioning pin (34) is clamped in the positioning groove (35) when the positioning column (312) is correspondingly connected with the positioning hole (322).