Spliced blackboard

Abstract

The utility model provides a spliced blackboard. The spliced blackboard comprises a main screen, an auxiliary screen and a splicing assembly, wherein the splicing assembly is used for splicing the main screen and the auxiliary screen. The splicing assembly comprises a rotating handle, wherein the rotating handle comprises an operating rod and a connecting rod which are vertically connected; one end, far away from the operating rod, of the connecting rod is rotationally connected to the secondary screen through the damping rotating shaft, so that the rotating handle is rotationally connected to the secondary screen; the connecting hook comprises a hook rod and a hook head connected to the hook rod, and the end, away from the hook head, of the hook rod is rotationally connected to the joint of the operating rod and the connecting rod; under the condition that the main screen and the auxiliary screen are spliced through the splicing assembly, the hook head is connected to the limiting flange of the main screen in a clamped mode, and the rotating handle is used for pulling the connecting hook in the direction away from the main screen so that the hook head and the limiting flange can be clamped tightly. According to the technical scheme, the main screen and the auxiliary screen of the spliced blackboard can be conveniently and rapidly installed, and meanwhile the splicing gap between the main screen and the auxiliary screen is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and more specifically, to a spliced ​​blackboard. Background Art

[0002] With the rapid development of commercial touch display all-in-one machines, spliced ​​blackboards have emerged in the field of education. Spliced ​​blackboards generally include a main screen and a sub-screen. Through the integrated design of the main screen and the sub-screen, the spliced ​​blackboard has achieved the integration of traditional teaching and electronic teaching, thereby improving teaching effectiveness.

[0003] The installation process of traditional spliced ​​blackboards is relatively complicated, requiring high levels of installation personnel, and there are assembly tolerances during the installation process, making it difficult to control the left and right splicing gaps and splicing gaps between the main screen and the secondary screen, affecting the user experience. Therefore, how to conveniently and quickly install the main screen and secondary screen of the spliced ​​blackboard, and how to reduce the splicing gap between the main screen and the secondary screen has become an urgent problem to be solved. Utility Model Content

[0004] In view of the above problems, an embodiment of the present application provides a spliced ​​blackboard, the main screen and the auxiliary screen of the spliced ​​blackboard can be installed and spliced ​​conveniently and quickly, while reducing the splicing gap between the main screen and the auxiliary screen.

[0005] In the first aspect, a splicing blackboard is provided, comprising: a main screen, a sub-screen and a splicing assembly, the splicing assembly is used to splice the main screen and the sub-screen, and the splicing assembly comprises: a rotating handle, the rotating handle comprises an operating rod and a connecting rod connected vertically; a damping shaft, the end of the connecting rod away from the operating rod is rotatably connected to the sub-screen through the damping shaft, so as to rotatably connect the rotating handle to the sub-screen; a connecting hook, the connecting hook comprises a hook rod and a hook head connected to the hook rod, the end of the hook rod away from the hook head is rotatably connected to the connection between the operating rod and the connecting rod; wherein, when the splicing assembly splices the main screen and the sub-screen, the hook head is clamped to the limiting flange of the main screen, and the rotating handle is used to pull the connecting hook in a direction away from the main screen to clamp the hook head with the limiting flange.

[0006] In combination with the first aspect, in certain implementations of the first aspect, a first through hole is provided at the end of the connecting rod away from the operating rod, and the damping shaft, the first through hole and the second through hole of the auxiliary screen match each other, and are used to rotatably connect the rotating handle to the auxiliary screen through the first through hole and the second through hole when the splicing assembly splices the main screen and the auxiliary screen, wherein the second through hole is provided at one end of the auxiliary screen close to the main screen.

[0007] In combination with the first aspect, in certain implementations of the first aspect, the damping shaft includes a bolt, a first flat washer arranged between the auxiliary screen and the rotating handle, two second flat washers arranged on the side of the rotating handle away from the auxiliary screen, an elastic washer arranged between the two second flat washers, and a nut screwed to the end of the bolt.

[0008] In combination with the first aspect, in certain implementations of the first aspect, the splicing assembly also includes a rotary rivet, a third through hole is provided at the end of the hook rod away from the hook head, the rotary rivet matches the third through hole and the fourth through hole of the rotating handle, and the connecting hook is rotatably connected to the rotating handle through the third through hole and the fourth through hole of the rotating handle, wherein the fourth through hole is provided at the connection between the operating rod and the connecting rod.

[0009] In combination with the first aspect, in certain implementations of the first aspect, the splicing assembly also includes a limit pin, and the limit pin, the fifth through hole of the operating rod and the sixth through hole of the secondary screen match each other, and are used to connect the operating rod to the secondary screen through the fifth through hole and the sixth through hole when the splicing assembly splices the main screen and the secondary screen.

[0010] In combination with the first aspect, in certain implementations of the first aspect, the rotating handle includes a connecting portion and two sub-handles arranged opposite to each other, each sub-handle includes an operating rod and a connecting rod; the connecting portion is arranged between the two operating rods and is vertically connected to the two operating rods to fix the two sub-handles in connection; the end of the hook rod away from the hook head is arranged between the two sub-handles and is rotatably connected to the two sub-handles.

[0011] In combination with the first aspect, in certain implementations of the first aspect, the splicing assembly also includes a gasket cylinder, which is arranged between the two connecting rods, the seventh through hole of the gasket cylinder is arranged opposite to the first through holes of the two connecting rods, and the damping shaft connects the gasket cylinder to the connecting rods through the seventh through hole and the first through hole.

[0012] In combination with the first aspect, in certain implementations of the first aspect, the rotating handle is integrally formed.

[0013] In combination with the first aspect, in some implementations of the first aspect, the secondary screen is provided with a wall-mounted bracket, and the main screen is provided with a supporting hook, and the supporting hook is hung with the wall-mounted bracket to hang the secondary screen on the main screen.

[0014] In combination with the first aspect, in certain implementations of the first aspect, the wall-mounted bracket is arranged between the splicing assembly and the secondary screen, and the wall-mounted bracket includes an eighth through hole, which is arranged opposite to the first through hole of the connecting rod, and the damping shaft rotatably connects the rotating handle to the wall-mounted bracket through the first through hole and the eighth through hole.

[0015] In combination with the first aspect, in certain implementations of the first aspect, the wall-mounted bracket also includes a ninth through hole, which is arranged opposite to the fifth through hole of the operating rod, and the limit pin of the splicing assembly connects the operating rod to the wall-mounted bracket through the fifth through hole and the ninth through hole.

[0016] In combination with the first aspect, in some implementations of the first aspect, the spliced ​​blackboard includes a main screen and two sub-screens, the two sub-screens are respectively arranged on both sides of a main screen, and a sub-screen and a main screen are spliced ​​together through two splicing components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic structural diagram of a main screen and a secondary screen of a splicing assembly splicing a blackboard disclosed in an embodiment of the present application;

[0018] Figure 2 is a schematic structural diagram of a splicing assembly disclosed in an embodiment of the present application;

[0019] Figure 3 for Figure 1 An enlarged view of part A in FIG.

[0020] Figure 4 It is a schematic diagram of the operation process of splicing a main screen and a secondary screen of a splicing blackboard with a splicing assembly disclosed in an embodiment of the present application;

[0021] Figure 5 It is a schematic diagram of the operation process of splicing a main screen and a secondary screen of a splicing blackboard with a splicing assembly disclosed in an embodiment of the present application;

[0022] Figure 6 is a schematic structural diagram of another splicing assembly disclosed in an embodiment of the present application;

[0023] Figure 7 is a schematic structural diagram of a limiting pin disclosed in an embodiment of the present application;

[0024] Figure 8 It is a schematic structural diagram of a spliced ​​blackboard disclosed in one embodiment of the present application;

[0025] Fig. 9 for Figure 8 An enlarged view of part B in FIG.

[0026] Fig.10 It is a schematic structural diagram of a wall-mounted bracket disclosed in one embodiment of the present application. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0028] The technical solution in the embodiment of the present application will be described below in conjunction with the drawings in the embodiment of the present application. In the description of the embodiment of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B; "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0029] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In addition, in the description of this embodiment, unless otherwise specified, "plurality" means two or more.

[0030] References to "one embodiment" or "some embodiments" etc. described in the embodiments of the present application mean that one or more embodiments of the present application include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0031] With the rapid development of commercial touch display all-in-one machines, spliced ​​blackboards have emerged in the field of education. Spliced ​​blackboards generally include a main screen and a sub-screen. Through the integrated design of the main screen and the sub-screen, the spliced ​​blackboard has achieved the integration of traditional teaching and electronic teaching, thereby improving teaching effectiveness.

[0032] When installing a traditional spliced ​​blackboard, you need to install the main wall mount and the wall mount strips on both sides of the beam on the wall, and you also need to install wall mount strips on the back of the main screen and the secondary screen. This solution has many matching parts, and the installation process is relatively complicated, which requires a high level of installation personnel. When installing, you need to first draw the main screen wall mount position and the secondary screen wall mount strip position against the wall, and punch holes one by one to fix them, which will result in an assembly tolerance. The main screen is assembled on the wall mount board, and the secondary screen is assembled on the wall mount strips on both sides, accumulating two assembly tolerances. Therefore, the left and right splicing gaps and splicing gaps of the matching positions of the main screen and the secondary screen are difficult to control, affecting the user experience.

[0033] In view of this, an embodiment of the present application provides a splicing blackboard, which includes a main screen, a sub-screen and a splicing assembly, and the splicing assembly is used to splice the main screen and the sub-screen. Specifically, the splicing assembly includes a rotating handle, a damping shaft and a connecting hook; the rotating handle includes a vertically connected operating rod and a connecting rod, and the end of the connecting rod away from the operating rod is rotatably connected to the sub-screen through the damping shaft to rotatably connect the rotating handle to the sub-screen; the connecting hook includes a hook rod and a hook head connected to the hook rod, and the end of the hook rod away from the hook head is rotatably connected to the connection between the operating rod and the connecting rod. When the splicing assembly provided by the embodiment of the present application is used to splice the main screen and the sub-screen, the hook head is clamped on the limiting flange of the main screen, and the rotating handle pulls the connecting hook in the direction away from the main screen, so that the rotating handle and the connecting hook are mutually restrained, so that the hook head is clamped with the limiting flange, thereby reducing the splicing gap between the main screen and the sub-screen. By utilizing the splicing assembly provided in the embodiment of the present application, the main screen and the auxiliary screen of the spliced ​​blackboard can be conveniently and quickly installed and spliced, and the splicing gap between the main screen and the auxiliary screen can be reduced.

[0034] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0035] Figure 1 A schematic structural diagram of a main screen and a secondary screen of a spliced ​​blackboard connected by a splicing assembly provided in an embodiment of the present application. Figure 2 A schematic structural diagram of a splicing assembly provided in an embodiment of the present application.

[0036] like Figure 1 As shown, the splicing blackboard includes a main screen 20, a secondary screen 30 and a splicing assembly 10, and the splicing assembly 10 is used to splice the main screen 20 and the secondary screen 30, wherein the splicing assembly 10 is connected to the secondary screen 30. Exemplarily, the splicing blackboard includes a main screen 20 and two secondary screens 30, and the two secondary screens 30 are respectively arranged on both sides of a main screen 20. A main screen 20 and a secondary screen 30 can be spliced ​​by two splicing assemblies 10.

[0037] like Figure 2 As shown, the splicing assembly 10 includes a rotating handle 11 , a damping shaft 12 and a connecting hook 13 .

[0038] Specifically, the rotating handle 11 includes an operating rod 111 and a connecting rod 112 connected vertically, and one end of the connecting rod 112 away from the operating rod 111 is rotatably connected to the auxiliary screen 30 (not shown in the figure) through the damping shaft 12, so as to rotatably connect the rotating handle 11 to the auxiliary screen 30. The connecting hook 13 includes a hook rod 131 and a hook head 132 connected to the hook rod 131, and one end of the hook rod 131 away from the hook head 132 is rotatably connected to the connection between the operating rod 111 and the connecting rod 112.

[0039] The following, combined Figures 3 to 5The splicing process of the main screen 20 and the auxiliary screen 30 using the splicing assembly 10 provided in the embodiment of the present application is specifically described.

[0040] First, the connecting hook 13 and the rotating handle 11 are rotated together, and then the assembly formed by connecting the connecting hook 13 and the rotating handle 11 is connected to the auxiliary screen 30 through the damping shaft 12. In the assembled structural plate, the connecting hook 13 and the rotating handle 11 can rotate freely, and the rotating handle 11 and the auxiliary screen 30 have a damping limit effect after being connected through the damping shaft 12. After the auxiliary screen 30 is hung on the main screen 20, the rotating handle 11 and the connecting hook 13 are rotated in the direction close to the main screen 20 (such as Figure 3 Then continue to rotate the connecting hook 13 in the direction close to the main screen 20 (as shown in the red arrow direction). Figure 4 until the hook head 132 of the connecting hook 13 is snapped onto the limiting flange 21 of the main screen 20 (as shown in the red arrow direction in FIG. Figure 5 Finally, the handle 11 is rotated in a direction away from the main screen 20 (as shown in FIG. Figure 5 The handle 11 is turned to pull the connecting hook 13 in the direction away from the main screen 20 (in the direction of the red arrow in the figure), so that the hook head 132 is clamped with the limiting flange 21, thereby tightening the main screen 20 and the auxiliary screen 30, and the splicing gap between the main screen 20 and the auxiliary screen 30 can be tightened and reduced, and the tension state between the main screen 20 and the auxiliary screen 30 is maintained by the damping force of the damping shaft 12.

[0041] In the embodiment of the present application, the rotating handle 11 and the connecting hook 13 can rotate relative to each other. When the splicing assembly 10 splices the main screen 20 and the auxiliary screen 30, the splicing assembly 10 is connected to the auxiliary screen 30 through the connecting rod 112, and the connecting hook 13 is engaged with the limiting flange 21 of the main screen 20, so that the splicing assembly 10 can be connected to the main screen 20, so that the main screen 20 and the auxiliary screen 30 can be connected. In addition, since the rotating handle 11 and the auxiliary screen 30 are connected through the damping shaft 12, after the connecting hook 13 is engaged with the limiting flange 21 of the main screen 20, the rotating handle 11 pulls the connecting hook 13 in a direction away from the main screen 20, so that the hook head 132 is engaged with the limiting flange 21, thereby pushing and pulling the main screen 20 and the auxiliary screen 30, so that the splicing gap between the main screen 20 and the auxiliary screen 30 is reduced, and the tension state between the main screen 20 and the auxiliary screen 30 is maintained by the damping force of the damping shaft 12. Therefore, the splicing assembly 10 provided in the embodiment of the present application can help to conveniently and quickly install the main screen 20 and the auxiliary screen 30 of the spliced ​​blackboard, while reducing the splicing gap between the main screen 20 and the auxiliary screen 30.

[0042] In some embodiments, Figure 6As shown, the rotating handle 11 includes a connecting portion 11b and two sub-handles 11a arranged opposite to each other, and each sub-handle 11a includes an operating rod 111 and a connecting rod 112; the connecting portion 11b is arranged between the two operating rods 111 and vertically connected to the two operating rods 111 to fix the two sub-handles 11a in connection; the end of the hook rod 131 away from the hook head 132 is arranged between the two sub-handles 11a and is rotatably connected to the two sub-handles 11a.

[0043] It should be understood that in the embodiment of the present application, the rotating handle 11 may include a connecting portion 11b and two sub-handles 11a (such as Figure 6 ), or may include only one sub-handle 11a (as shown Figure 1 It should be noted that, in the present application, the same reference numerals in the drawings of the specification represent the same components.

[0044] The following describes in detail the splicing assembly 10 provided in the embodiment of the present application by taking the rotating handle 11 including the connecting portion 11 b and two sub-handles 11 a arranged opposite to each other as an example.

[0045] In some embodiments, Figure 6 As shown, a first through hole 1121 is provided at one end of the connecting rod 112 away from the operating rod 111, and the damping shaft 12, the first through hole 1121 and the second through hole (not shown in the figure) of the auxiliary screen 30 match each other, and are used to rotatably connect the rotating handle 11 with the auxiliary screen 30 through the first through hole 1121 and the second through hole when the splicing assembly 10 splices the main screen 20 and the auxiliary screen 30, and the second through hole is provided at one end of the auxiliary screen 30 close to the main screen 20.

[0046] In some embodiments, Figure 6 As shown, the damping shaft 12 includes a bolt 121, a first flat washer 122 arranged between the auxiliary screen 30 and the rotating handle 11, two second flat washers 123 arranged on the side of the rotating handle 11 away from the auxiliary screen 30, an elastic washer 124 arranged between the two second flat washers 123, and a nut 125 screwed onto the end of the bolt 121.

[0047] refer to Figure 6The elastic gasket 124 has a recessed portion 1241 that is recessed in a direction away from the rotating handle 11, that is, both side surfaces of the elastic gasket 124 are curved surfaces, and both side surfaces are bent in a direction away from the rotating handle 11. In this way, after the rotating handle 11 and the auxiliary screen 30 are connected by the damping shaft 12, when the main screen 20 and the auxiliary screen 30 are spliced, the operating rod 111 of the rotating handle 11 rotates in a direction away from the main screen 20. At this time, the damping shaft 12 will provide a unidirectional damping force, that is, only when the operating rod 111 of the rotating handle 11 rotates in a direction away from the main screen 20, the damping shaft 12 will have a damping limit effect, thereby maintaining the tension between the main screen 20 and the auxiliary screen 30 through the damping force of the damping shaft 12.

[0048] In the embodiment of the present application, the damping shaft 12 can provide a damping force through the above-mentioned structural setting, and has a damping limiting effect; the damping force of the damping shaft 12 can maintain the tension state between the main screen 20 and the auxiliary screen 30.

[0049] In some embodiments, Figure 6 As shown, the splicing assembly 10 also includes a rotating rivet 14, and a third through hole 1311 is provided at the end of the hook rod 131 away from the hook head 132. The rotating rivet 14 matches the third through hole 1311 and the fourth through hole 113 of the rotating handle 11, and the connecting hook 13 is rotatably connected to the rotating handle 11 through the third through hole 1311 and the fourth through hole 113 of the rotating handle 11, wherein the fourth through hole 113 is provided at the connection between the operating rod 111 and the connecting rod 112.

[0050] In some embodiments, Figure 6 As shown, the splicing assembly 10 also includes a limit pin 15, which matches the limit pin 15, the fifth through hole 1111 of the operating rod 111 and the sixth through hole (not shown in the figure) of the auxiliary screen 30, and is used to fix the operating rod 111 to the auxiliary screen 30 through the fifth through hole 1111 and the sixth through hole when the splicing assembly 10 splices the main screen 20 and the auxiliary screen 30.

[0051] The operating rod 111 is fixed to the auxiliary screen 30 by the limiting pin 15, which reduces the possibility of the main screen and the auxiliary screen being loosened due to the rebound of the damping shaft, thereby ensuring the stability of the connection between the main screen 20 and the auxiliary screen 30.

[0052] In some embodiments, the limiting pin 15 may have different structural settings according to actual conditions. Figure 6 As shown, the limit pin 15 is a threaded limit pin 15. For another example, Figure 7 As shown, the limit pin 15 is an elastic limit pin 15. It should be understood that the above is only an exemplary structure of the limit pin 15 in the embodiment of the present application, and does not constitute a limitation on the structure of the limit pin 15 in the embodiment of the present application.

[0053] In some embodiments, Figure 7 As shown, the splicing assembly 10 also includes a washer 16, which is arranged between the two connecting rods 112, and the seventh through hole 161 of the washer 16 is arranged opposite to the first through hole 1121 of the two connecting rods 112, and the damping shaft 12 connects the washer 16 with the connecting rod 112 through the seventh through hole 161 and the first through hole 1121.

[0054] Because there is a certain gap between the two connecting rods 112, a cushion tube 16 is provided between the two connecting rods 112 to support both of them, thereby preventing the two connecting rods 112 from being excessively deformed due to external pulling.

[0055] It should be understood that in the embodiment of the present application, when the rotating handle 11 includes only one sub-handle 11 a , the splicing assembly 10 may not include the washer tube 16 .

[0056] Optionally, in some embodiments, the rotating handle 11 is integrally formed, and such a structural design is convenient for processing and operation.

[0057] Optionally, in some embodiments, the rotating handle 11 is not integrally formed. For example, when the rotating handle 11 includes only one sub-handle 11a, the operating rod 111 and the connecting rod 112 are welded and connected to form the rotating handle 11. For another example, when the rotating handle 11 includes two sub-handles 11a and a connecting portion 11b, the connecting portion 11b and the two sub-handles 11a are welded and connected, and the two sub-handles 11a can be integrally formed or non-integrally formed.

[0058] In some embodiments, the rotating handle 11, the connecting hook 13 and the elastic gasket 124 are made of stainless steel.

[0059] Stainless steel has certain elasticity and good wear resistance, and its surface is beautiful, clean and bright, durable, scratch-free, not easy to rust and break, and stainless steel also has the advantages of low temperature resistance, good thermal expansion, good heat preservation, environmental protection and hygiene, etc. The above components are made of stainless steel material, which can be durable and ensure the splicing stability of the splicing assembly 10.

[0060] In some embodiments, the material of the limit pin 15 is free-cutting steel. Free-cutting steel has good cutting performance, high plasticity and high strength. The limit pin 15 is made of free-cutting steel material as a raw material, and a variety of limit pins 15 with different shapes can be prepared to meet user needs.

[0061] In some embodiments, Fig. 9 As shown, the secondary screen 30 is provided with a wall-mounted bracket 40 , and the main screen 20 is provided with a supporting hook 50 , and the supporting hook 50 is hung with the wall-mounted bracket 40 to hang the secondary screen 30 on the main screen 20 .

[0062] Specifically, the wall bracket 40 is arranged between the splicing assembly 10 and the secondary screen 30. Fig.10 As shown, the wall-mounted bracket 40 includes a first surface 41, a second surface 42 and a third surface 43 connecting the first surface 41 and the second surface 42, and an eighth through hole 411 is provided on the first surface 41. The eighth through hole 411 is arranged opposite to the first through hole 1121 of the connecting rod 112, and the damping shaft 12 rotatably connects the rotating handle 11 and the wall-mounted bracket 40 through the first through hole 1121 and the eighth through hole 411.

[0063] In some embodiments, Fig.10 As shown, a ninth through hole 412 is further provided on the first surface 41 , and the ninth through hole 412 is arranged opposite to the fifth through hole 1111 of the operating rod 111 , and the limiting pin 15 connects the operating rod 111 with the wall-mounted bracket 40 through the fifth through hole 1111 and the ninth through hole 412 .

[0064] In some embodiments, Fig.10 As shown, the second surface 42 has a connecting hole 421, and the connecting hole 421 can be passed through by a connecting bolt, and the wall-mounted bracket 40 is fixedly connected to the auxiliary screen 30 through the connecting bolt.

[0065] It should be understood that in the embodiment of the present application, the structure of the splicing blackboard can be that the rotating handle 11 of the splicing assembly 10 is rotatably connected to the auxiliary screen 30 through the damping shaft 12, or the rotating handle 11 is rotatably connected to the wall-mounted bracket 40 through the damping shaft 12, and the wall-mounted bracket 40 is fixedly connected to the auxiliary screen 30 by connecting bolts, thereby indirectly connecting the rotating handle 11 to the auxiliary screen 30.

[0066] It should be noted that the specific way in which the rotating handle 11 is connected to the wall-mounted bracket 40 through the damping shaft 12 is similar to the way in which the rotating handle 11 is connected to the auxiliary screen 30 through the damping shaft 12. Please refer to the above description for details and will not be repeated here.

[0067] In some embodiments, Fig.10 As shown, the third surface 43 has a tenth through hole 431, and the hook head of the support hook 50 passes through the tenth through hole 431. The hook rod of the support hook 50 supports the portion of the third surface 43 close to the main screen 20. In this way, the support hook 50 can not only hang the auxiliary screen 30, but also limit the movement of the auxiliary screen 30 in the horizontal direction, so as to facilitate the subsequent splicing assembly 10 to splice the main screen 20 and the auxiliary screen 30.

[0068] In some embodiments, the splicing blackboard includes a main screen 20 and two sub-screens 30, the two sub-screens 30 are respectively arranged on both sides of a main screen 20, and a sub-screen 30 and a main screen 20 are spliced ​​by two splicing components 10, for example, Figure 8 shown.

[0069] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A spliced ​​blackboard, characterized in that: include: A main screen (20), a secondary screen (30) and a splicing assembly (10), wherein the splicing assembly (10) is used to splice the main screen (20) and the secondary screen (30), and the splicing assembly (10) comprises: A rotating handle (11), wherein the rotating handle (11) comprises an operating rod (111) and a connecting rod (112) which are vertically connected; A damping rotating shaft (12), wherein one end of the connecting rod (112) away from the operating rod (111) is rotatably connected to the auxiliary screen (30) via the damping rotating shaft (12), so as to rotatably connect the rotating handle (11) to the auxiliary screen (30); A connecting hook (13), the connecting hook (13) comprising a hook rod (131) and a hook head (132) connected to the hook rod (131), and an end of the hook rod (131) away from the hook head (132) is rotatably connected to a connection between the operating rod (111) and the connecting rod (112); Wherein, when the splicing assembly (10) splices the main screen (20) and the auxiliary screen (30), the hook head (132) is clamped on the limiting flange (21) of the main screen (20), and the rotating handle (11) is used to pull the connecting hook (13) in a direction away from the main screen (20) so that the hook head (132) is clamped on the limiting flange (21).

2. The spliced ​​blackboard according to claim 1, characterized in that: A first through hole (1121) is provided at one end of the connecting rod (112) away from the operating rod (111); the damping shaft (12), the first through hole (1121) and the second through hole of the auxiliary screen (30) match each other, and are used to rotatably connect the rotating handle (11) with the auxiliary screen (30) through the first through hole (1121) and the second through hole when the splicing assembly (10) splices the main screen (20) and the auxiliary screen (30).

3. The spliced ​​blackboard according to claim 1, characterized in that: The damping shaft (12) comprises a bolt (121), a first flat washer (122) arranged between the auxiliary screen (30) and the rotating handle (11), two second flat washers (123) arranged on a side of the rotating handle (11) away from the auxiliary screen (30), an elastic washer (124) arranged between the two second flat washers (123), and a nut (125) screwed onto the end of the bolt (121).

4. The spliced ​​blackboard according to claim 1, characterized in that: The splicing assembly (10) further comprises a rotating rivet (14), and a third through hole (1311) is provided at one end of the hook rod (131) away from the hook head (132), and the rotating rivet (14) matches the third through hole (1311) and the fourth through hole (113) of the rotating handle (11), and the connecting hook (13) is rotatably connected to the rotating handle (11) through the third through hole (1311) and the fourth through hole (113), wherein the fourth through hole (113) is provided at the connection between the operating rod (111) and the connecting rod (112).

5. The spliced ​​blackboard according to claim 1, characterized in that: The splicing assembly (10) further comprises a limit pin (15), wherein the limit pin (15), a fifth through hole (1111) of the operating rod (111) and a sixth through hole of the auxiliary screen (30) match each other and are used for connecting the operating rod (111) to the auxiliary screen (30) via the fifth through hole (1111) and the sixth through hole when the splicing assembly (10) splices the main screen (20) and the auxiliary screen (30).

6. The spliced ​​blackboard according to any one of claims 1 to 5, characterized in that: The rotating handle (11) comprises a connecting portion (11b) and two sub-handles (11a) arranged opposite to each other, and each of the sub-handles (11a) comprises the operating rod (111) and the connecting rod (112); The connecting portion (11b) is disposed between the two operating rods (111) and vertically connected to the two operating rods (111) so as to fixedly connect the two sub-handles (11a); One end of the hook rod (131) away from the hook head (132) is arranged between the two sub-handles (11a) and is rotatably connected to the two sub-handles (11a).

7. The spliced ​​blackboard according to claim 6, characterized in that: The splicing assembly (10) also includes a washer tube (16), which is arranged between the two connecting rods (112), and the seventh through hole (161) of the washer tube (16) is arranged opposite to the first through holes (1121) of the two connecting rods (112), and the first through hole (1121) is arranged at one end of the connecting rod (112) away from the operating rod (111), and the damping shaft (12) connects the washer tube (16) and the connecting rod (112) through the seventh through hole (161) and the first through hole (1121).

8. The spliced ​​blackboard according to claim 1, characterized in that: The rotating handle (11) is integrally formed.

9. The spliced ​​blackboard according to claim 1, characterized in that: The auxiliary screen (30) is provided with a wall-mounted bracket (40), and the main screen (20) is provided with a supporting hook (50), and the supporting hook (50) is hung on the wall-mounted bracket (40) so as to hang the auxiliary screen (30) on the main screen (20).

10. The spliced ​​blackboard according to claim 9, characterized in that: The wall-mounted bracket (40) is arranged between the splicing assembly (10) and the auxiliary screen (30), and the wall-mounted bracket (40) includes an eighth through hole (411), and the eighth through hole (411) is arranged opposite to the first through hole (1121) of the connecting rod (112), and the damping shaft (12) rotatably connects the rotating handle (11) and the wall-mounted bracket (40) through the first through hole (1121) and the eighth through hole (411).

11. The spliced ​​blackboard according to claim 10, characterized in that: The wall-mounted bracket (40) further comprises a ninth through hole (412), the ninth through hole (412) being arranged opposite to the fifth through hole (1111) of the operating rod (111), and the limiting pin (15) of the splicing assembly (10) connects the operating rod (111) to the wall-mounted bracket (40) via the fifth through hole (1111) and the ninth through hole (412).

12. The spliced ​​blackboard according to claim 1, characterized in that: The spliced ​​blackboard comprises a main screen (20) and two auxiliary screens (30), wherein the two auxiliary screens (30) are respectively arranged on both sides of the main screen (20), and the auxiliary screen (30) and the main screen (20) are spliced ​​together via two splicing components (10).

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