Intelligent blackboard, display equipment and splicing device

Abstract

Disclosed are an intelligent blackboard, a display device and a splicing device.The intelligent blackboard at least comprises a main screen (100), an auxiliary screen (200) and a splicing device (300), and the splicing device (300) comprises a locking assembly (310) and a plug-in assembly (320); the locking assembly (310) comprises a first pressing block (311) and a first elastic piece (312), the first elastic piece (312) is located between the first pressing block (311) and the main screen (100), and the first elastic piece (312) is used for driving the first pressing block (311) to move towards the plugging assembly (312); the insertion assembly (312) comprises an insertion part (321), the insertion part (321) is connected with the auxiliary screen (200), one side of the insertion part (321) is at least provided with a first guide surface (3211) and a second guide surface (3212), a convex part (3213) is formed at the adjacent position of the first guide surface (3211) and the second guide surface (3212), and the first abutting block (311) is provided with a concave part (3111) matched with the adjacent position of the first guide surface (3211) and the second guide surface (3212). According to the intelligent blackboard, the main screen and the auxiliary screen can be conveniently and rapidly disassembled and assembled, and the assembling and disassembling efficiency of the intelligent blackboard is improved.

Description

Smart blackboards, display devices and splicing devices Technical Field

[0001] The present application relates to the field of display devices, and in particular to a smart blackboard, a display device and a splicing device. Background Art

[0002] Due to the large size of the smart blackboard, the main screen and the secondary screen of the smart blackboard are usually split and transported separately, and then spliced ​​into one during installation using splicing devices such as buckles or screws.

[0003] However, existing splicing devices such as tabs or screws are generally located at the top or bottom of the back shell of the smart blackboard. This means that when installing and disassembling, the user needs to climb to the top of the smart blackboard and lie on the bottom of the device to operate the tabs or screws, making disassembly and assembly difficult.

[0004] Summary of the Invention

[0005] The purpose of this application is to provide a smart blackboard, display device and splicing device that can facilitate quick disassembly and assembly of the main screen and the secondary screen.

[0006] To achieve the above-mentioned purpose, the present application provides a smart blackboard on one hand, which includes at least a main screen, a secondary screen and a splicing device, and the splicing device is arranged between the main screen and the secondary screen, wherein the splicing device includes a locking component and a plug-in component; the locking component includes a first pressing block and a first elastic member, the first elastic member is located between the first pressing block and the main screen, and the first elastic member is used to drive the first pressing block to move toward the plug-in component; the plug-in component includes a plug-in portion, the plug-in portion is connected to the secondary screen, and one side of the plug-in portion has at least a first guide surface and a second guide surface, and the first guide surface and the second guide surface both face the first guide surface and the second guide surface The first guide surface and the second guide surface are adjacent to each other, and a convex portion is formed adjacent to the first guide surface, and the first pressing block is provided with a concave portion that cooperates with the adjacent portion of the first guide surface and the second guide surface; when the auxiliary screen is spliced ​​with the main screen, the first pressing block overcomes the force of the first elastic member under the guidance of the first guide surface and moves in the direction away from the plug-in portion, so that the convex portion can be stuck in the concave portion and lock the plug-in portion; when the auxiliary screen is separated from the main screen, the first pressing block overcomes the force of the first elastic member under the guidance of the second guide surface and moves in the direction away from the plug-in portion, and the convex portion disengages from the concave portion, so that the first pressing block is separated from the plug-in portion.

[0007] To achieve the above-mentioned purpose, the present application further provides a display device, which includes at least a first display component, a second display component and a splicing device, wherein the splicing device includes a locking component and a plug-in component; the locking component includes a first pressing block and a first elastic member, the first elastic member is located between the first pressing block and the first display component, and the first elastic member is used to drive the first pressing block to move toward the plug-in component; the plug-in component includes a plug-in portion, the plug-in portion is connected to the second display component, and one side of the plug-in portion has at least a first guide surface and a second guide surface, and the first guide surface and the second guide surface both face the first guide surface and a second guide surface, wherein the first guide surface and the second guide surface are adjacent to each other and a convex portion is formed, and the first pressing block is provided with a concave portion that cooperates with the first guide surface and the second guide surface adjacent to each other; when the first display component and the second display component are spliced ​​together, the first pressing block overcomes the force of the first elastic member under the guiding action of the first guide surface and moves in a direction away from the plug-in portion, so that the convex portion can be stuck in the concave portion and lock the plug-in portion; when the first display component and the second display component are separated, the first pressing block overcomes the force of the first elastic member under the guiding action of the second guide surface and moves in a direction away from the plug-in portion.

[0008] To achieve the above-mentioned purpose, the present application also provides a splicing device on the other hand, which includes at least a locking assembly and a plug-in assembly; the locking assembly includes a first base, a first pressure block and a first elastic member, the first elastic member is located between the first pressure block and the first base, and the first elastic member is used to drive the first pressure block to move toward the plug-in assembly; the plug-in assembly includes a second base and a plug-in portion, the plug-in portion is connected to the second base, and one side of the plug-in portion has at least a first guide surface and a second guide surface, the first guide surface and the second guide surface both extend to the adjacent portion of the first guide surface and the second guide surface, a convex portion is formed adjacent to the first guide surface and the second guide surface, and the first pressure block is provided with a concave portion that cooperates with the adjacent portion of the first guide surface and the second guide surface.

[0009] Thus, the technical solution provided by the present application is to install a locking assembly on the main screen and a plug-in assembly on the auxiliary screen. The plug-in portion of the plug-in assembly has a first guide surface and a second guide surface on one side. A convex portion is formed adjacent to the first guide surface and the second guide surface. The first pressing block of the locking assembly is provided with a concave portion that cooperates with the adjacent portions of the first guide surface and the second guide surface. When the auxiliary screen and the main screen are installed, the first pressing block, guided by the first guide surface, overcomes the force of the first elastic member and moves away from the plug-in portion, so that the convex portion can be snapped into the concave portion and lock the plug-in portion, thereby achieving rapid splicing of the main screen and the auxiliary screen. When the auxiliary screen and the main screen are disassembled, the first pressing block, guided by the second guide surface, overcomes the force of the first elastic member and moves away from the plug-in portion, so that the convex portion disengages from the concave portion, so that the first pressing block separates from the plug-in portion, thereby achieving rapid separation of the main screen and the auxiliary screen. In other words, the present application can achieve rapid splicing of the main screen and the auxiliary screen when installing, and can also achieve rapid separation of the main screen and the auxiliary screen when disassembling. In this way, compared with the existing smart blackboard, when installing and disassembling, the user needs to climb to the top of the smart blackboard and lie on the bottom of the device to operate the buckles or screws, when installing and disassembling the main screen and the sub-screen, the present application does not need to climb to the top of the smart blackboard and lie on the bottom of the device to operate, and can achieve rapid splicing and separation of the main screen and the sub-screen at the joint, thereby making disassembly more convenient and quick, and improving the installation and disassembly efficiency of the smart blackboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0011] FIG1 is a schematic structural diagram of a smart blackboard according to an embodiment of the present application;

[0012] FIG2 is an enlarged schematic diagram of portion A of FIG1 ;

[0013] FIG3 is a schematic structural diagram of a splicing device according to an embodiment of the present application;

[0014] FIG4 is a schematic structural diagram of a plug-in assembly according to an embodiment of the present application;

[0015] FIG5 is an axonometric diagram of a splicing device in another embodiment provided by the present application;

[0016] FIG6 is an axonometric diagram of a locking assembly in another embodiment provided by the present application;

[0017] FIG7 is a schematic diagram of a half-section structure of a splicing device according to an embodiment of the present application;

[0018] FIG8 is a schematic structural diagram of a splicing device from another angle in an embodiment provided by the present application;

[0019] Figure 9 is a structural diagram of a smart blackboard in another embodiment provided by the present application.

[0020] Explanation of the accompanying drawings: 100, main screen; 200, sub-screen; 300, splicing device; 310, locking assembly; 311, first pressure block; 3111, recess; 312, first elastic member; 313, first base; 314, second pressure block; 315, second elastic member; 316, limiting groove; 317, first protrusion; 318, carrier plate; 320, plug-in assembly; 321, plug-in part; 3211, first guide surface; 3212, second guide surface; 3213, protrusion; 322, second base; 323, limiting latch; 324, second protrusion; 325, reinforcing rib; L, symmetry plane. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings. Terms such as "upper", "above", "lower", "below", "first end", "second end", "one end", "the other end" used in this application to express spatial relative positions are used to describe the relationship of one unit or feature relative to another unit or feature as shown in the accompanying drawings for the purpose of ease of explanation. Terms of spatial relative position may be intended to include different orientations of the device in use or work other than the orientation shown in the figures. For example, if the device in the figure is turned over, the unit described as being "below" or "below" other units or features will be "above" other units or features. Therefore, the exemplary term "below" can encompass both the above and below orientations. The device can be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially related descriptive terms used herein are interpreted accordingly.

[0022] Furthermore, the terms "installed," "disposed," "provided with," "connected," "slidingly connected," "fixed," and "socketed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a removable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0023] With the rapid development of science and technology, more and more schools have begun to use smart blackboards for teaching, so that teachers can display teaching materials, videos, audio and other multimedia content through the blackboard to enrich the teaching content, thereby improving students' learning interest and comprehension ability.

[0024] Smart blackboards are typically composed of a main screen and a secondary screen. Considering the large size of smart blackboards, which makes them difficult to transport and install as a whole, most smart blackboards are separated and transported separately. During installation, the main and secondary screens are fixed or hung on the wall from the back and joined together using fasteners such as buckles or screws.

[0025] However, existing splicing devices such as tabs or screws are generally located at the top or bottom of the back shell of the smart blackboard. This means that when disassembling and assembling, the user needs to climb to the top of the smart blackboard and lie on the bottom of the device to operate the tabs or screws, making disassembly and assembly difficult.

[0026] In addition, in the process of realizing the present invention, the inventors found that the conventional fixed clip limiting structure (such as hooks and slots) is used to realize the splicing of the main screen and the auxiliary screen. Although it is convenient to quickly splice and fix the main screen and the auxiliary screen together, the disassembly process still requires the user to climb to the top of the smart blackboard or lie on the bottom of the smart blackboard to separate the hooks and slots to disassemble the splicing.

[0027] Therefore, in order to simultaneously achieve fast and convenient splicing, installation, and disassembly of the main screen and the auxiliary screen, the applicant proposed a splicing device, which is provided with a locking component and a plug-in component. The locking component has an elastic limiting function. During fast splicing, the plug-in component overcomes the elastic force to plug in. During fast disassembly, the plug-in component overcomes the elastic force to pull out, thereby achieving extremely fast and convenient splicing, installation, and disassembly of the main screen and the auxiliary screen.

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described in this application are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of this application.

[0029] Please refer to Figures 1 and 2 together. The present application provides a smart blackboard, which may include at least a main screen 100, a secondary screen 200, and a splicing device 300, wherein the splicing device 300 includes a locking component 310 and a plug-in component 320. The locking component 310 can be connected to the main screen 100 and arranged close to the splicing surface of the main screen 100 and the secondary screen 200. The plug-in component 320 can be connected to the secondary screen 200 and arranged close to the splicing surface of the main screen 100 and the secondary screen 200. When the main screen 100 and the secondary screen 200 are installed, as the main screen 100 and the secondary screen 200 approach each other, the plug-in component 320 is inserted into the locking component 310, and the locking component 310 can automatically lock the plug-in component 320, thereby realizing automatic splicing of the main screen 100 and the secondary screen 200. When the main screen 100 and the sub-screen 200 are disassembled, as the main screen 100 and the sub-screen 200 are forced to move away from each other, the force they receive can break through the locking force of the locking component 310 on the plug-in component 320, thereby achieving automatic separation of the plug-in component 320 from the locking component 310.

[0030] During the actual installation process, a hook 400 should be installed on the back of the secondary screen 200, and a wall-mounted bracket corresponding to the hook 400 should be installed on the wall. During installation, the main screen 100 can be fixed or hung on the wall first, and then the secondary screen 200 can be hung on the hanging bracket via the hook 400. Finally, the secondary screen 200 can be slid along the wall-mounted bracket by the hook 400 to approach the main screen 100 until the plug-in component 320 is inserted into the locking component 310. The locking force between the plug-in component 320 and the locking component 310 is used to prevent the main screen 100 and the secondary screen 200 from separating, thereby achieving automatic splicing of the secondary screen 200 of the main screen 100. Correspondingly, during disassembly, the staff can apply force to make the secondary screen 200 slide along the wall-mounted bracket away from the main screen 100, so that the plug-in component 320 overcomes the locking force of the locking component 310, thereby achieving automatic separation of the secondary screen 200 of the main screen 100.

[0031] In this embodiment, the main screen 100 is the core display screen of the smart blackboard, which is used to display teaching content, courseware, multimedia resources, etc. Teachers can write, mark, display teaching materials, etc. on the main screen 100, and students can also watch and participate in teaching activities through the main screen 100. The main screen 100 usually has a touch function and can interact with teachers or students, such as writing, selecting, dragging, etc. with fingers or a stylus. The secondary screen 200 is an auxiliary display component of the smart blackboard. The secondary screen 200 is mainly used to assist teaching, such as displaying the teacher's toolbar, teaching progress, student list, class schedule and other information. The secondary screen 200 allows teachers to view and manage teaching-related information while performing teaching operations on the main screen 100, thereby improving teaching efficiency. At the same time, the secondary screen 200 can also be used for student interaction and display. For example, students can display their own works, answer questions, etc. on the secondary screen 200.

[0032] In actual applications, the secondary screen 200 can be a display screen, a blackboard, or a whiteboard, etc., and this application does not specifically limit this. Among them, the number of secondary screens 200 of the smart blackboard can be one or two. When there is one secondary screen 200, the secondary screen 200 can be located on one side or below the main screen 100. When there are two secondary screens 200, the two secondary screens 200 can be located on both sides of the main screen 100 respectively.

[0033] In one feasible embodiment, referring to Figures 2 to 4 , the locking assembly 310 may include a first pressing block 311 and a first elastic member 312. The first elastic member 312 is located between the first pressing block 311 and the main screen 100. The first elastic member 312 is used to drive the first pressing block 311 toward the plug-in assembly 320. When the plug-in assembly 320 is inserted into the locking assembly 310, the first elastic member 312 can drive the first pressing block 311 to contact the plug-in assembly 320, thereby restricting the main screen 100 and the auxiliary screen 200 from moving in the disassembly direction. The disassembly direction refers to the direction of splicing and separating the main screen 100 and the auxiliary screen 200.

[0034] The plug-in assembly 320 includes a plug-in portion 321, which is connected to the secondary screen 200. One side of the plug-in portion 321 has at least a first guide surface 3211 and a second guide surface 3212. The first guide surface 3211 and the second guide surface 3212 both extend toward the adjacent portion of the first guide surface 3211 and the second guide surface 3212. A protrusion 3213 is formed adjacent to the first guide surface 3211 and the second guide surface 3212. The first pressing block 311 is provided with a recess 3111 that cooperates with the adjacent portion of the first guide surface 3211 and the second guide surface 3212. In this way, the locking assembly 320 can lock and separate the plug-in portion 321 by engaging and disengaging the protrusion 3213 and the recess 3111. Specifically, when the secondary screen 200 is assembled with the main screen 100, the first pressing block 311, guided by the first guide surface 3211, overcomes the force of the first elastic member 312 and moves away from the plug-in portion 321, so that the protrusion 3213 can be engaged with the recess 3111 to lock the plug-in portion 321. When the secondary screen 200 is separated from the main screen 100, the first pressing block 311, guided by the second guide surface 3212, overcomes the force of the first elastic member 312 and moves away from the plug-in portion 321, and the protrusion 3213 disengages from the recess 3111, so that the plug-in portion 321 is separated from the first pressing block 311.

[0035] In the above manner, the present application installs the splicing device 300 between the main screen 100 and the sub-screen 200, thereby realizing rapid splicing of the main screen 100 and the sub-screen 200 when they are installed, and rapid separation of the main screen 100 and the sub-screen 200 when they are disassembled. In this way, compared with the existing smart blackboard in which the user needs to climb to the top of the smart blackboard and lie on the bottom of the device to operate the buckles or screws during installation and disassembly, the present application does not need to climb to the top of the smart blackboard and lie on the bottom of the device to operate when installing and disassembling the main screen 100 and the sub-screen 200, and can realize rapid splicing and separation of the main screen and the sub-screen at the splicing point, thereby making assembly and disassembly more convenient and quick, and improving the efficiency of assembly and disassembly of the smart blackboard.

[0036] In actual use, the first guide surface 3211 should be located near the front end of the plug-in portion 321, and the second guide surface 3212 should be located near the rear end of the plug-in portion 321. Thus, when the main screen 100 and the auxiliary screen 200 approach each other, the first pressing block 311 can first contact the first guide surface 3211 and, guided by the first guide surface 3211, move away from the plug-in portion 321. Next, the first pressing block 311 contacts the second guide surface 3212 and, guided by the second guide surface 3212, moves toward the plug-in portion 321 until the main screen 100 and the auxiliary screen 200 contact each other. At this point, the protrusion 3213 engages the recess 3111, and the inclined surface of the second guide surface 3212 prevents the first pressing block 311 from moving in the opposite direction, thereby locking the main screen 100 and the auxiliary screen 200, thereby achieving splicing of the main screen 100 and the auxiliary screen 200. When the main screen 100 and the auxiliary screen 200 are forced to move away from each other after being spliced, the first pressing block 311 moves in the direction away from the plug-in portion 321 under the guidance of the second guide surface 3212, so that the protrusion 3213 is disengaged from the recess 3111, thereby realizing the separation of the main screen 100 and the auxiliary screen 200.

[0037] The first guide surface 3211 and the second guide surface 3212 can form a continuous surface. Of course, the first guide surface 3211 and the second guide surface 3212 can also be discontinuous, that is, other planes or curved surfaces can be provided between the first guide surface 3211 and the second guide surface 3212. This application does not specifically limit this. The first guide surface 3211 and the second guide surface 3212 can be inclined planes or inclined curved surfaces.

[0038] Preferably, in a feasible embodiment, please refer to Figures 3 and 4 again, the first guide surface 3211 and the second guide surface 3212 can form a continuous arc-shaped surface, and at this time, the protrusion 3213 is in the shape of an arc-shaped convex. Correspondingly, the recess 3111 on the first pressure block 311 is in the shape of an arc-shaped groove, and the outer contour of the protrusion 3213 is adapted to the inner contour of the recess 3211. In this way, when the main screen 100 and the auxiliary screen 200 are spliced, the outer surface of the protrusion 3213 fits with the groove bottom of the recess 3111. In this way, the first pressure block 311 locks the plug-in part 321 in an embracing manner, increases the contact area between the first pressure block 311 and the plug-in part 321, and improves the reliability of the first pressure block 311 locking the plug-in part 321. Moreover, the outer surface of the protrusion 3213 fits with the bottom of the groove of the recess 3111, which can make the splicing device 300 more beautiful after splicing, and improve the overall aesthetics of the smart blackboard. In a feasible embodiment, please refer to Figures 1 and 3. The above-mentioned locking assembly 310 can also include a first base 313. The first base 313 serves as a bearing component of the locking assembly 310. The first base 313 is used to support other components of the locking assembly 310. The first base 313 is connected to the main screen 100, and one end of the first pressure block 311 is hinged to the first base 313 and the hinge axis is perpendicular to the main screen 100, so that the first pressure block 311 moves toward or away from the plug-in portion 321 by flipping. The first elastic member 312 is located between the first pressure block 311 and the first base 313.

[0039] Of course, in another feasible embodiment, the first pressing block 311 may also be slidably connected to the first base 313, so that the first pressing block 311 can slide toward or away from the plug portion 321. The first elastic member 312 is located between the first pressing block 311 and the first base 313.

[0040] However, considering that the solution structure of the first pressing block 311 moving toward or away from the plug-in portion 321 by flipping is simpler, the present application preferably adopts the solution of the first pressing block 311 moving toward or away from the plug-in portion 321 by flipping, and the subsequent description will also be based on the movement of the first pressing block 311 toward or away from the plug-in portion 321 by flipping.

[0041] It should be noted that the first pressing block 311 should have a turning range, which should ensure that the first pressing block 311 does not exceed the moving path of the plug-in portion 321. This ensures that when the main screen 100 and the auxiliary screen 200 are close to each other, the first pressing block 311 is located on one side of the plug-in portion 321, and the first pressing block 311 is turned under the guidance of the first guide surface 3211. The moving path of the plug-in portion 321 refers to the path that the plug-in portion 321 moves along in the direction of assembly and disassembly.

[0042] In practical applications, a limit block (not shown) may be provided on the first base 313 to limit the turning range of the first pressing block 311, thereby ensuring that the first pressing block 311 does not cross the moving path of the plug-in portion 321. Of course, the turning range of the first pressing block 311 driven by the first elastic member 312 may also be limited by designing the first elastic member 312, for example, by adjusting the size and elastic coefficient of the first elastic member 312, which is not specifically limited in this application.

[0043] Regarding the specific structure of the first elastic member 312 , this application provides two achievable embodiments for reference.

[0044] Embodiment 1: As shown in FIG3 , the first elastic member 312 may be a compression spring. One end of the compression spring is connected to the first base 313 , and the other end of the compression spring is connected to the first pressing block 311 , thereby utilizing the spring force of the compression spring to drive the first pressing block 311 to flip toward the plug portion 321 .

[0045] In actual application, the first base 313 and the first pressing block 311 can be provided with a limit column on the side away from the plug-in part 321, and the two ends of the compression spring are respectively mounted on the two limit columns, so as to avoid the compression spring from shifting during the flipping process of the first pressing block 311, thereby improving the operating reliability of the locking assembly 310.

[0046] Embodiment 2: The first elastic member 312 may be a torsion spring. The torsion spring may be mounted on the hinge axis between the first pressing block 311 and the first base 313, with one end of the torsion spring abutting the first base 313 and the other end of the torsion spring abutting the first pressing block 311. The torsional force of the torsion spring drives the first pressing block 311 to flip toward the insertion portion 321.

[0047] In actual application, since the first pressing block 311 is located on one side of the plug-in portion 321 and the first pressing block 311 locks the plug-in portion 321 by abutting against the plug-in portion 321, it is obvious that when the first pressing block 311 locks the plug-in portion 321, the first pressing block 311 will exert a force in a single direction on the plug-in portion 321, which will inevitably increase the force on the connection component between the plug-in portion 321 and the auxiliary screen 200, thereby affecting the service life of the connection component between the plug-in portion 321 and the auxiliary screen 200.

[0048] In order to solve the above problem, in one feasible embodiment, please refer to Figures 4 to 6 , there may be two plug-in parts 321, and the two plug-in parts 321 are symmetrically arranged and have a symmetry plane L. Correspondingly, the locking assembly 310 also includes a second pressing block 314 and a second elastic member 315, one end of the second pressing block 314 is hinged to the first base 313 and the hinge axis is perpendicular to the main screen 100, the second pressing block 314 and the first pressing block 311 are symmetrically arranged about the symmetry plane, the second elastic member 315 is located between the second pressing block 314 and the first base 313, and the second elastic member 315 is configured to drive the second pressing block 314 to abut against the side of the plug-in part 321 opposite to it by flipping.

[0049] Through the above arrangement, the locking assembly 310 is provided with a first pressing block 311 and a second pressing block 314 on both sides of the plug-in portion 321. This not only allows the first pressing block 311 and the second pressing block 314 to jointly press the plug-in portion 321 when the main screen 100 and the auxiliary screen 200 are spliced ​​together, thereby improving the reliability of the splicing and locking of the main screen 100 and the auxiliary screen 200. At the same time, the force exerted by the first pressing block 311 on the plug-in portion 321 can offset the force exerted by the second pressing block 314 on the plug-in portion 321, reducing the force exerted on the plug-in portion 321, thereby improving the service life of the connection component between the plug-in portion 321 and the auxiliary screen 200.

[0050] In this embodiment, the first elastic member 312 and the second elastic member 315 can be the same elastic member, for example, the first elastic member 312 and the second elastic member 315 can both be compression springs or torsion springs. Of course, the first elastic member 312 and the second elastic member 315 can also be different members, for example, the first elastic member 312 is a compression spring, and the second elastic member 315 is a torsion spring.

[0051] Preferably, the first elastic member 312 and the second elastic member 315 should be the same elastic member. In this way, with the first pressing block 311 and the second pressing block 314 being symmetrically arranged about the symmetry plane, when the main screen 100 and the auxiliary screen 200 are separated, the first pressing block 311 and the second pressing block 314 abut against each other, and the force exerted by the first elastic member 312 on the first pressing block 311 is equal to the force exerted by the second elastic member 315 on the second pressing block 314, so that the abutment point of the first pressing block 311 and the second pressing block 314 just stays on the moving path of the plug-in portion 321, thereby limiting the first pressing block 311 and the second pressing block 314 from crossing the moving path of the plug-in portion 321. In this way, there is no need to set additional limit blocks or specifically design the first elastic member 312 and the second elastic member 315 to limit the flipping range of the first pressing block 311, thereby reducing the overall design cost and production cost of the smart blackboard.

[0052] Furthermore, the two plug-in parts 321 can form a cylindrical structure or a cylindrical structure together. In this way, not only can the appearance of the plug-in assembly 320 be more beautiful, but also the processing of the two plug-in parts 321 is convenient, the production process of the two plug-in parts 321 is simplified, and the production cost is reduced.

[0053] Please refer to Figures 4, 6, and 7. In one feasible embodiment, the plug-in assembly 320 further includes a second base 322, through which the plug-in portion 321 is connected to the secondary screen 200. A limiting groove 316 is provided on the side of the first base 313 near the second base 322, and a limiting latch 323 is provided on the side of the second base 322 near the first base 313. When the main screen 100 and the secondary screen 200 are spliced ​​together, the limiting latch 323 cooperates with the limiting groove 316 to prevent the main screen 100 and the secondary screen 200 from moving in directions other than the disassembly direction, thereby preventing the main screen 100 and the secondary screen 200 from relative movement in directions other than the disassembly direction, which would cause the locking between the first pressing block 311 and the plug-in portion 321 to fail, thereby ensuring the stability of the main screen 100 and the secondary screen 200 after splicing. At the same time, the limiting pin 323 and the limiting groove 316 can also play a role in splicing and positioning the main screen 100 and the auxiliary screen 200, ensuring the accuracy of the splicing position of the main screen 100 and the auxiliary screen 200.

[0054] It should be noted that the above-mentioned limiting groove 316 can also be opened on the side of the second base 322 close to the first base 313. Correspondingly, the limiting pin 323 is set on the side of the first base 313 close to the second base 322. This application does not make specific limitations on this.

[0055] In this embodiment, when the main screen 100 and the auxiliary screen 200 are close to each other, the limiting pin 323 should be inserted into the limiting groove 316 before the plug-in portion 321 contacts the first pressing block 311. In other words, when the main screen 100 and the auxiliary screen 200 are close to each other, the limiting pin 323 is first inserted into the limiting groove 316, and then as the limiting pin 323 continues to extend into the limiting groove 316, the plug-in portion 321 contacts the first pressing block 311, thereby ensuring that the moving path of the plug-in portion 321 is located on one side of the first pressing block 311, and then when the plug-in portion 321 moves to the side of the first pressing block 311, the first pressing block 311 can press and lock the plug-in portion 321.

[0056] Furthermore, the limiting pin 323 can be constructed to extend toward the limiting slot 316 and gradually taper to form a tapered structure; correspondingly, the limiting slot 316 extends away from the limiting pin 323 and gradually tapers to form a tapered slot structure. In this way, the opening diameter of the limiting slot 316 is larger than the insertion end diameter of the limiting pin 323, facilitating the insertion of the limiting pin 323 into the limiting slot 316, thereby preventing assembly errors from causing the limiting pin 323 to be unable to insert into the limiting slot 316. It is also understood that the limiting pin 323 has a generally tapered structure and the limiting slot 316 has a generally tapered slot structure. When the limiting pin 323 gradually extends into the limiting slot 316, the outer wall of the limiting pin 323 will inevitably abut the inner wall of the limiting slot 316, thereby preventing a gap between the limiting pin 323 and the limiting slot 316, which could cause relative movement between the main screen 100 and the auxiliary screen 200 after splicing.

[0057] In a feasible embodiment, please refer to Figures 4 and 7, a reinforcing rib 325 is further provided between the second base 322 and the plug-in portion 321, and the reinforcing rib 325 increases the connection strength between the plug-in portion 321 and the second base 322 to solve the problem of poor connection reliability caused by the plug-in portion 321 protruding from the second base 322.

[0058] In practical applications, the plug-in portion 321, the second base 322 and the reinforcing rib 325 can be made by an integral forming process such as injection molding or die casting. The plug-in portion 321, the second base 322 and the reinforcing rib 325 can also be designed as separate parts and then assembled into one by welding, gluing or threading.

[0059] In one possible embodiment, referring to Figures 8 and 9 , the bottom of the first base 313 may be provided with a first protrusion 317. The first protrusion 317 engages with a groove in the edge of the frame of the main screen 100 to position the first base 313. Furthermore, the first base 313 is connected to the frame of the main screen 100 via a first locking member passing through the first protrusion 317, thereby connecting the first base 313 to the main screen 100. Similarly, the bottom of the second base 322 is provided with a second protrusion 324. The second protrusion 324 engages with a groove in the edge of the frame of the secondary screen 200 to position the second base 322. Furthermore, the second base 322 is connected to the frame of the secondary screen 200 via a second locking member passing through the second protrusion 324, thereby connecting the second base 322 to the secondary screen 200. In actual use, the first and second locking members may be removable components such as screws to facilitate subsequent maintenance and replacement.

[0060] Since the connection between the first base 313 and the main screen 100 is located at the edge frame of the main screen 100, and the first pressing block 311 and the first elastic member 312 are also located at the edge frame of the main screen 100, the first pressing block 311 and the first elastic member 312 will inevitably block the connection between the first base 313 and the main screen 100, thereby hindering the assembly and connection operation of the first base 313 and the main screen 100.

[0061] In order to solve the above problem, in one feasible embodiment, as shown in FIG6 , a carrier plate 318 is detachably connected to the first base 313. The first pressing block 311 and the second pressing block 314 are hinged to the carrier plate 318 respectively, the first elastic member 312 is located between the first pressing block 311 and the carrier plate 318, and the second elastic member 315 is located between the second pressing block 314 and the carrier plate 318. In this way, during assembly, the first base 313 can be connected to the main screen 100 first, and then the first elastic member 312, the second elastic member 315, the first pressing block 311 and the second pressing block 314 can be connected to the first base 313, thereby facilitating the assembly and connection of the first base 313 and the main screen 100.

[0062] Based on the same inventive concept, the present application also provides a display device. The display device can be used in education, teaching, lectures or other scenes that need to display or show images to achieve content presentation. Specifically, the display device may include at least a first display component, a second display component and a splicing device 300. Among them, the splicing device 300 includes a locking assembly 310 and a plug-in assembly 320. The locking assembly 310 may include a first pressing block 311 and a first elastic member 312, the first elastic member 312 is located between the first pressing block 311 and the first display component, and the first elastic member 312 is used to drive the first pressing block 311 to move toward the plug-in assembly 320. The plug-in assembly 320 includes a plug-in portion 321, which is connected to the second display component. One side of the plug-in portion 321 has at least a first guide surface 3211 and a second guide surface 3212. The first guide surface 3211 and the second guide surface 3212 both extend toward the adjacent portion of the first guide surface 3211 and the second guide surface 3212. A protrusion 3213 is formed adjacent to the first guide surface 3211 and the second guide surface 3212. The first pressing block 311 is provided with a recess 3111 that mates with the adjacent portion of the first guide surface 3211 and the second guide surface 3212. When the first and second display components are spliced ​​together, the first pressing block 311, guided by the first guide surface 3211, overcomes the force of the first elastic member 312 and moves away from the plug-in portion 321, allowing the protrusion 3213 to engage with the recess 3111 and lock the plug-in portion 321. When the first display component and the second display component are separated, the first pressing block 311 overcomes the force of the first elastic member 312 under the guidance of the second guide surface 3212 and moves away from the plug-in portion 321, and the protrusion 3213 disengages from the recess 3111, so that the plug-in portion 321 is separated from the first pressing block 311.

[0063] It should be pointed out that, for the specific structure of the locking assembly 310 and the plug-in assembly 320, reference can be made to the details described in the above embodiment, which will not be repeated here. The "first" and "second" mentioned in this application do not represent specific quantities and orders, but are only used to distinguish the names. Taking the first display component and the first display component as an example, the first display component and the first display component are both components for image display or display, and the first display component and the first display component can be two identical or two different display components. In actual applications, the first display component and the first display component can be any one of a display screen, a smart screen touch screen, a whiteboard and a blackboard.

[0064] Based on the same inventive concept, the present application also provides a splicing device 300. The splicing device 300 includes at least a locking assembly 310 and a plug assembly 320. The locking assembly 310 includes a first base 313, a first pressing block 311, and a first elastic member 312. The first elastic member 312 is located between the first pressing block 311 and the first base 313 and is used to drive the first pressing block 311 toward the plug assembly 320. The plug-in assembly 320 includes a second base 322 and a plug-in portion 321, the plug-in portion 321 is connected to the second base 322, and one side of the plug-in portion 321 has at least a first guide surface 3211 and a second guide surface 3212, the first guide surface 3211 and the second guide surface 3212 both extend toward the adjacent portions of the first guide surface 3211 and the second guide surface 3212, a convex portion 3213 is formed adjacent to the first guide surface 3211 and the second guide surface 3212, and the first pressing block 311 is provided with a concave portion 3111 that cooperates with the adjacent portions of the first guide surface 3211 and the second guide surface 3212.

[0065] Furthermore, one end of the first pressing block 311 is hinged to the first base 313. The first elastic member 312 is configured to drive the first pressing block 311 to abut against the plug-in portion 321 in a flipping manner.

[0066] It should be pointed out that, regarding the specific structure of the locking assembly 310 and the plug assembly 320, reference can be made to the contents described in detail in the above embodiment, which will not be repeated here. The splicing device 300 may not only be limited to use in display devices, but the splicing device 300 may also be applied to any other two components that need to be quickly disassembled and quickly spliced. For example, the splicing device 300 can be arranged between the sweeping robot and the cleaning base station, the locking assembly 310 can be installed on the cleaning base station, and the plug assembly 320 can be installed on the sweeping robot. When the sweeping robot returns to the cleaning base station for operations such as replenishing water or charging, the locking assembly 310 can automatically lock the plug assembly 320 to avoid the sweeping robot from moving or shaking during operations such as replenishing water or charging.

[0067] Thus, the technical solution provided by the present application is to install a locking assembly on the main screen and a plug-in assembly on the auxiliary screen. The plug-in portion of the plug-in assembly has a first guide surface and a second guide surface on one side. A convex portion is formed adjacent to the first guide surface and the second guide surface. The first pressing block of the locking assembly is provided with a concave portion that cooperates with the adjacent portions of the first guide surface and the second guide surface. When the auxiliary screen and the main screen are installed, the first pressing block, guided by the first guide surface, overcomes the force of the first elastic member and moves away from the plug-in portion, so that the convex portion can be snapped into the concave portion and lock the plug-in portion, thereby achieving rapid splicing of the main screen and the auxiliary screen. When the auxiliary screen and the main screen are disassembled, the first pressing block, guided by the second guide surface, overcomes the force of the first elastic member and moves away from the plug-in portion, so that the convex portion disengages from the concave portion, so that the first pressing block separates from the plug-in portion, thereby achieving rapid separation of the main screen and the auxiliary screen. In other words, the present application can achieve rapid splicing of the main screen and the auxiliary screen when installing, and can also achieve rapid separation of the main screen and the auxiliary screen when disassembling. In this way, compared with the existing smart blackboard, when installing and disassembling, the user needs to climb to the top of the smart blackboard and lie on the bottom of the device to operate the buckles or screws, when installing and disassembling the main screen and the sub-screen, the present application does not need to climb to the top of the smart blackboard and lie on the bottom of the device to operate, and can achieve rapid splicing and separation of the main screen and the sub-screen at the joint, thereby making disassembly more convenient and quick, and improving the installation and disassembly efficiency of the smart blackboard.

[0068] Furthermore, by providing a first pressing block and a second pressing block on either side of the plug-in portion, not only can the first pressing block and the second pressing block jointly press the plug-in portion when the main screen and the auxiliary screen are spliced ​​together, thereby improving the reliability of the splicing and locking of the main screen and the auxiliary screen, but the force exerted by the first pressing block on the plug-in portion can also offset the force exerted by the second pressing block on the plug-in portion, reducing the force exerted on the plug-in portion, thereby improving the service life of the connecting component between the plug-in portion and the auxiliary screen.

[0069] Furthermore, the first elastic member and the second elastic member should be the same elastic member, and the first pressing block and the second pressing block should be symmetrically arranged about the symmetry plane. In this way, when the main screen and the auxiliary screen are separated, the first pressing block and the second pressing block abut against each other to limit the movement path of the first pressing block and the second pressing block from crossing the plug-in portion. This eliminates the need to provide additional limit blocks or customize the design of the first and second elastic members to limit the flipping range of the first and second pressing blocks, thereby reducing the overall design and production costs of the display device.

[0070] Furthermore, a limiting slot is provided on the side of the first base close to the second base, and a limiting latch is provided on the side of the second base close to the first base. When the main screen and the auxiliary screen are spliced ​​together, the limiting latch cooperates with the limiting slot to prevent the main screen and the auxiliary screen from moving in directions other than the disassembly direction, thereby preventing the main screen and the auxiliary screen from relative movement in directions other than the disassembly direction, which would cause the locking of the first pressing block and the plug-in portion to fail, thereby ensuring the stability of the main screen and the auxiliary screen after splicing. At the same time, the limiting latch and the limiting slot can also play a role in positioning the main screen and the auxiliary screen for splicing, ensuring the accuracy of the splicing position of the main screen and the auxiliary screen.

[0071] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A smart blackboard, It is characterized in that The smart blackboard at least includes a main screen, a secondary screen and a splicing device, wherein the splicing device is arranged between the main screen and the secondary screen, wherein the splicing device includes a locking component and a plug-in component; The locking assembly includes a first pressing block and a first elastic member, wherein the first elastic member is located between the first pressing block and the main screen, and the first elastic member is used to drive the first pressing block to move toward the plug-in assembly; The plug-in assembly includes a plug-in portion, the plug-in portion is connected to the auxiliary screen, one side of the plug-in portion has at least a first guide surface and a second guide surface, the first guide surface and the second guide surface both extend to the adjacent portion of the first guide surface and the second guide surface, a convex portion is formed at the adjacent portion of the first guide surface and the second guide surface, and the first pressing block is provided with a concave portion matched with the adjacent portion of the first guide surface and the second guide surface; When the auxiliary screen is spliced ​​with the main screen, the first pressing block overcomes the force of the first elastic member under the guidance of the first guide surface and moves in the direction away from the plug-in part, so that the convex part can be inserted into the concave part to lock the plug-in part; when the auxiliary screen is separated from the main screen, the first pressing block overcomes the force of the first elastic member under the guidance of the second guide surface and moves in the direction away from the plug-in part, and the convex part disengages from the concave part, so that the first pressing block is separated from the plug-in part.

2. The smart blackboard according to claim 1, It is characterized in that The locking assembly also includes a first base; The first base is connected to the main screen, one end of the first pressing block is hinged to the first base and the hinge axis is perpendicular to the main screen, and the first elastic member is located between the first pressing block and the first base.

3. The smart blackboard according to claim 2, It is characterized in that The first elastic member is a compression spring; One end of the compression spring is connected to the first base, and the other end of the compression spring is connected to the other end of the first pressing block.

4. The smart blackboard according to claim 3, It is characterized in that There are two plug-in parts, and the two plug-in parts are symmetrically arranged and have a symmetrical surface; The locking assembly also includes a second pressing block and a second elastic member, one end of the second pressing block is hinged to the first base and the hinge axis is perpendicular to the main screen, the second pressing block and the first pressing block are symmetrically arranged with respect to the symmetry plane, the second elastic member is located between the second pressing block and the first base, and the second elastic member is used to drive the second pressing block to abut against the side of the plug-in portion opposite to it by flipping.

5. The smart blackboard according to claim 4, It is characterized in that The two plug-in parts together form a cylindrical structure or a cylinder structure.

6. The smart blackboard according to claim 5, It is characterized in that The plug-in assembly further includes a second base, and the plug-in portion is connected to the auxiliary screen via the second base; A limiting groove is provided on one side of the first base close to the second base, and a limiting latch is provided on one side of the second base close to the first base; or a limiting latch is provided on one side of the first base close to the second base, and a limiting groove is provided on one side of the second base close to the first base; When the main screen and the auxiliary screen are spliced ​​together, the limiting latch cooperates with the limiting groove to prevent the main screen and the auxiliary screen from moving in a direction other than the disassembly direction.

7. The smart blackboard according to claim 6, It is characterized in that When the main screen and the auxiliary screen are close to each other, the limiting latch is inserted into the limiting groove and contacts the first pressing block before the plug-in portion contacts the first pressing block.

8. The smart blackboard according to claim 7, It is characterized in that The limiting pin extends toward the limiting groove and gradually shrinks to form a cone structure; The limiting groove extends in a direction away from the limiting latch and gradually shrinks to form a tapered groove structure.

9. The smart blackboard according to claim 8, It is characterized in that A first protrusion is provided at the bottom of the first base, and the first base is connected to the frame of the main screen through a first locking member passing through the first protrusion; A second protrusion is provided at the bottom of the second base, and the second base is connected to the frame of the secondary screen through a second locking member passing through the second protrusion.

10. The smart blackboard according to claim 9, It is characterized in that The first base is detachably connected to a carrier plate; The first pressing block and the second pressing block are hinged to the carrier plate respectively, the first elastic member is located between the first pressing block and the carrier plate, and the second elastic member is located between the second pressing block and the carrier plate.

11. The smart blackboard according to claim 1, It is characterized in that A hook is installed on the back of the secondary screen; The hook is used for hanging on the wall bracket, and the secondary screen is moved closer to or away from the main screen by the hook sliding along the wall bracket.

12. A display device, It is characterized in that The display device at least comprises a first display component, a second display component and a splicing device, wherein the splicing device comprises a locking component and a plug-in component; The locking assembly comprises a first pressing block and a first elastic member, wherein the first elastic member is located between the first pressing block and the first display component, and the first elastic member is used to drive the first pressing block to move toward the plug-in assembly; The plug-in assembly includes a plug-in portion, the plug-in portion is connected to the second display component, one side of the plug-in portion has at least a first guide surface and a second guide surface, the first guide surface and the second guide surface both extend to the adjacent portion of the first guide surface and the second guide surface, a convex portion is formed adjacent to the first guide surface and the second guide surface, and the first pressing block is provided with a concave portion matched with the adjacent portion of the first guide surface and the second guide surface; When the first display component and the second display component are spliced ​​together, the first pressing block overcomes the force of the first elastic member under the guidance of the first guide surface and moves in the direction away from the plug-in portion, so that the convex portion can be inserted into the concave portion to lock the plug-in portion; when the first display component and the second display component are separated, the first pressing block overcomes the force of the first elastic member under the guidance of the second guide surface and moves in the direction away from the plug-in portion, and the convex portion disengages from the concave portion, so that the first pressing block is separated from the plug-in portion.

13. A splicing device, It is characterized in that The splicing device at least includes a locking component and a plug-in component; The locking assembly comprises a first base, a first pressing block and a first elastic member, wherein the first elastic member is located between the first pressing block and the first base, and the first elastic member is used to drive the first pressing block to move toward the plug-in assembly; The plug-in assembly includes a second base and a plug-in portion, the plug-in portion is connected to the second base, one side of the plug-in portion has at least a first guide surface and a second guide surface, the first guide surface and the second guide surface both extend toward the adjacent portion of the first guide surface and the second guide surface, a convex portion is formed adjacent to the first guide surface and the second guide surface, and the first pressing block is provided with a concave portion that cooperates with the adjacent portion of the first guide surface and the second guide surface.

14. The splicing device according to claim 13, It is characterized in that One end of the first pressing block is hinged to the first base; The first elastic member is configured to drive the first pressing block to abut against the plug-in portion in a flipping manner.

Images