Orbital transfer integrator, orbital transfer integration device and blackboard
By designing a rail change integrator, including sliding components, guide structures and rail change components, the problem that the movable blackboard cannot perform rail change movements is solved, the rail change and movement of the blackboard is realized, the consistency of teaching and writing is improved, and the operation is more labor-saving.
Patent Information
- Application Number
- CN202420754411.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-04-12
AI Technical Summary
In the prior art, the movable blackboard cannot perform track-changing actions, resulting in a height difference between the movable blackboard and the fixed blackboard, affecting the consistency of teaching writing.
A rail change integrator is designed, including a sliding assembly, a guide structure and a rail change assembly. The sliding assembly consists of a support plate, a first sliding part and a long slot. The guide structure is provided with a rail change groove. The rail change assembly includes a mounting frame, a second sliding part, a rail change part and a rotating wheel. Through the collaborative work of these components, the blackboard changes and movement can be achieved.
The track change action of the blackboard is realized, so that there is no height difference between the movable blackboard and the fixed blackboard, which improves the consistency of teaching and writing. Moreover, through the control of the track change integrated device, the track change and movement of the blackboard is more labor-saving.
Smart Images
Figure CN222675769U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of teaching tools, and specifically relates to a track-changing integrator, a track-changing integrated device and a blackboard. Background Art
[0002] Blackboard is a commonly used tool in teaching. Most blackboards are directly fixed on the wall, but this kind of blackboard brings a lot of inconvenience to teaching, is not conducive to multimedia video teaching demonstration, and affects the teaching effect. At present, there are many push-pull blackboards composed of several blackboards, which mainly rely on the movement of the blackboard in the guide rail of the frame to realize the movement of the blackboard; however, this method has disadvantages. The movable blackboard cannot change the track, resulting in a certain height difference between the movable blackboard and the fixed blackboard, which in turn affects the continuity of teaching writing. Utility Model Content
[0003] The embodiments of the utility model provide a track change integrator, a track change integrated device and a blackboard to solve the technical problem in the prior art that the movable blackboard cannot perform track change action, resulting in a height difference between the movable blackboard and the fixed blackboard, which affects the writing continuity.
[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a track change integrator, including:
[0005] The sliding assembly comprises a support plate and a first sliding part mounted on the support plate, wherein the first sliding part is used for sliding connection to the guide rail; a long groove is formed on the support plate, and the length direction of the long groove is perpendicular to the moving direction of the first sliding part;
[0006] A guide structure, which is used to be fixedly mounted on the guide rail, and the guide structure is provided with a track changing groove, and the track changing groove has an arc that is bent along the moving direction of the first sliding part toward a direction perpendicular to the moving direction of the first sliding part;
[0007] The track changing assembly includes a mounting frame, a second sliding part mounted on the mounting frame, and a track changing part, wherein one end of the mounting frame is used to be fixedly connected to the blackboard; the second sliding part is slidably connected to the support plate, and the moving direction of the second sliding part is perpendicular to the moving direction of the first sliding part; the track changing part extends downward from the mounting frame and is slidably connected to the long groove, and the lower end of the track changing part is provided with a rotating wheel that cooperates with the track changing groove.
[0008] In a possible implementation, the mounting frame is provided with a long protrusion, and the long protrusion corresponds to the long groove; the long protrusion is provided with a plurality of mounting holes, and the plurality of mounting holes are arranged in a line; the track change portion is connected to the mounting holes.
[0009] In a possible implementation, two parallel and spaced limit plates are provided on the support plate, and the two limit plates are located on both sides of the long groove, and the length direction of the limit plates is consistent with the length direction of the long groove; the second sliding portion is located between the two limit plates and is slidably connected to the side walls of the limit plates.
[0010] In a possible implementation, the second sliding portion is further provided with a plurality of limiting wheels, and the plurality of limiting wheels are all provided on the mounting frame and are respectively located on both sides of the long protrusion, and the limiting wheels are rotatably connected to the mounting frame.
[0011] In a possible implementation, the rolling surface of the limiting wheel is a concave surface, and the limiting plate is provided with a limiting flange that slides in cooperation with the rolling surface.
[0012] In a possible implementation, a spring stopper is provided on the mounting bracket.
[0013] In a possible implementation, the track change assembly further includes a connecting plate, one end of which is fixedly connected to the mounting frame, and the other end of which is fixedly connected to the blackboard.
[0014] The beneficial effect of a track-changing integrator provided by the utility model is that, compared with the prior art, the track-changing integrator of the utility model, when in use, because the support plate is provided with a long groove whose length direction is perpendicular to the moving direction of the first sliding part, and the second sliding part installed on the mounting frame is slidably connected to the support plate, and at the same time, a track-changing groove is provided on the guide structure, and the track-changing groove has an arc that is bent along the moving direction of the first sliding part toward a direction perpendicular to the moving direction of the first sliding part, and the lower end of the track-changing part is provided with a rotating wheel that is matched with the track-changing groove, so when the first sliding part drives the support plate to move on the guide rail, the rotating wheel at the lower end of the track-changing part moves in the track-changing groove and moves in the direction of the guide structure, and when the rotating wheel moves, it drives the track-changing part to move in the long groove, thereby Drive the mounting frame and the second sliding part to move toward the length direction of the long groove, and make the blackboard move with the mounting frame, so as to complete the track changing action; since the first sliding part on the sliding assembly is slidably connected to the guide rail, and the first sliding part is installed on the support plate, after the track changing action is completed, the support plate moves in the guide rail, and the rotating wheel moves in the guide structure, thereby driving the mounting frame to move, so that the blackboard moves along the length direction of the guide rail; in this way, when the sliding assembly drives the track changing assembly to move, with the help of the track changing groove, the track changing part and the rotating wheel drive the mounting frame and the second sliding part to move toward the length direction of the long groove, so that the mounting frame drives the blackboard to complete the track changing action, and then the sliding assembly drives the track changing assembly to move along the length direction of the guide rail, thereby driving the blackboard to move.
[0015] Another object of the present invention is to provide a track-changing integrated device, comprising two track-changing integrators according to any one of the above items, wherein the two track-changing integrators are arranged in parallel and at intervals.
[0016] In a possible implementation, the guide structures of the two track-changing integrators are arranged in parallel and spaced apart in the guide rail, the tail of the track-changing groove on one guide structure is flush with the other guide structure, and the curvature of the track-changing groove whose tail is flush with the guide structure is greater than the curvature of the other track-changing groove; the track-changing parts of the two track-changing integrators are staggered and are respectively located in the two track-changing grooves.
[0017] The track changing integrated device provided by the present invention adopts two track changing integrators, and the sliding assemblies of the two track changing integrators drive the track changing assemblies to move. Therefore, with the help of two track changing grooves, the two rotating wheels drive the two mounting frames to move in a direction perpendicular to the guide rail, and then the two mounting frames drive the same blackboard to complete the track changing action. After that, the two sliding assemblies drive the two track changing assemblies to move along the length direction of the guide rail, and drive the blackboard to move synchronously, so that the track changing integrated device can control the track changing and movement of the blackboard more labor-saving.
[0018] Another object of the utility model is to provide a blackboard, comprising any one of the above-mentioned track-changing integrated devices; further comprising a frame, a fixed blackboard and a movable blackboard, wherein a guide rail is arranged on the frame and along the length direction of the frame.
[0019] The present invention provides a blackboard, which adopts a track-changing integrated device, and the movable blackboard is arranged in front of the multimedia by means of a frame, and the movable blackboard and the fixed blackboard are at the same horizontal plane. Therefore, when watching the multimedia, the movable blackboard is controlled by the track-changing integrated device to first complete the track-changing action, and then moves from the front of the multimedia to the front of the fixed blackboard; when the track-changing integrated device controls the movable blackboard to move, the track-changing component moves on the sliding component by means of the track-changing groove, and drives the movable blackboard to move in the direction away from the multimedia, that is, moves along the length direction of the long groove, and then the sliding component drives the track-changing component to move by means of the guide rail, and the track-changing component moves in the guide structure, and then the movable blackboard is moved to the front of the fixed blackboard, so that the multimedia is placed in the front of the fixed blackboard. When the multimedia is not in use, the sliding assembly moves in the guide rail and drives the track changing assembly to move in the guide structure until the track changing assembly drives the movable blackboard to move in front of the multimedia, and then the track changing assembly moves in the track changing groove and drives the movable blackboard to move in the direction close to the multimedia until the movable blackboard and the fixed blackboard are in the same horizontal plane. In this way, the movement of the movable blackboard is controlled by means of the guide rail and the track changing integrated device, so as to block or expose the multimedia, and at the same time, the track changing groove and the track changing assembly are used to ensure that when the multimedia is blocked, the movable blackboard and the fixed blackboard are in the same horizontal plane, so as not to affect the continuity of teaching and writing, and when the multimedia is exposed, the movable blackboard moves to the front of the fixed blackboard, so as not to affect students' viewing of the multimedia. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 A schematic diagram of the structure of the track change integrator provided in the embodiment of the utility model Figure 1 ;
[0022] Figure 2 A schematic diagram of the structure of the track change integrator provided in the embodiment of the utility model Figure 2 ;
[0023] Figure 3 A schematic diagram of the structure of the track change integrator provided in the embodiment of the utility model Figure 3 ;
[0024] Figure 4 A side view of the track change integrator provided by an embodiment of the utility model;
[0025] Figure 5A schematic diagram of the connection between the first sliding portion and the locking assembly provided in an embodiment of the utility model;
[0026] Figure 6 for Figure 5 The enlarged view of point A in the middle;
[0027] Figure 7 A schematic diagram of the structure of the integrated track change device provided in an embodiment of the utility model;
[0028] Figure 8 A schematic diagram of the connection between the guide structure and the track changing groove provided in the embodiment of the utility model;
[0029] Fig. 9 for Figure 8 The enlarged view of point B in the middle;
[0030] Fig.10 A schematic diagram of the connection between the blackboard and the track-changing integrated device provided in an embodiment of the utility model.
[0031] Among them, the reference numerals in the figure are:
[0032] 1. Track-changing integrator; 11. Sliding assembly; 111. Support plate; 112. First sliding part; 113. Long groove; 114. Limiting plate; 115. Locking groove; 116. Limiting flange; 12. Guide structure; 13. Track-changing groove; 14. Track-changing assembly; 141. Mounting frame; 142. Second sliding part; 143. Track-changing part; 144. Limiting wheel; 145. Connecting plate; 146. Long protrusion; 147. Rotating wheel; 15. Spring baffle; 2. Guide rail; 3. Frame; 4. Fixed blackboard; 5. Movable blackboard; 6. Multimedia; 7. Locking assembly; 71. Limiting block; 711. Limiting hole; 72. Locking block; 721. Arc surface; 722. Guide surface; 73. Elastic member. DETAILED DESCRIPTION
[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0034] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0035] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0037] See also Figures 1 to 10 The track-changing integrator provided by the utility model is now described. A track-changing integrator includes a sliding assembly 11, a guide structure 12 and a track-changing assembly 14. The sliding assembly 11 includes a support plate 111 and a first sliding portion 112 installed on the support plate 111. The first sliding portion 112 is used for sliding connection to the guide rail 2. The support plate 111 is provided with a long groove 113, and the length direction of the long groove 113 is perpendicular to the moving direction of the first sliding portion 112; the guide structure 12 is used for fixed installation on the guide rail 2, and the guide structure 12 is provided with a track-changing groove 13, and the track-changing groove 13 has a vertical direction along the moving direction of the first sliding portion 112. The arc is bent in the moving direction of the first sliding part 112; the track changing assembly 14 includes a mounting frame 141, a second sliding part 142 installed on the mounting frame 141, and a track changing part 143, one end of the mounting frame 141 is used to be fixedly connected to the blackboard, the second sliding part 142 is slidably connected to the support plate 111, and the moving direction of the second sliding part 142 is perpendicular to the moving direction of the first sliding part 112, the track changing part 143 extends downward from the mounting frame 141 and is slidably connected to the long groove 113, and the lower end of the track changing part 143 is provided with a rotating wheel 147 that is matched with the track changing groove 13.
[0038] Compared with the prior art, the track-changing integrator provided in the present embodiment is different from the prior art in that, when in use, the track-changing integrator of the present invention has a long groove 113 whose length direction is perpendicular to the moving direction of the first sliding part 112, and the second sliding part 142 installed on the mounting frame 141 is slidably connected to the support plate 111, and the guide structure 12 is provided with a track-changing groove 13, and the track-changing groove 13 has an arc curved along the moving direction of the first sliding part 112 toward a direction perpendicular to the moving direction of the first sliding part 112, and the lower end of the track-changing part 143 is provided with a rotating wheel 147 connected to the track-changing groove 13, so that when the first sliding part 112 drives the support plate 111 to move on the guide rail 2, the rotating wheel 147 at the lower end of the track-changing part 143 moves in the track-changing groove 13 and moves toward the direction close to the guide structure 12, and when the rotating wheel 147 moves, it drives the track-changing part 143 to move in the long groove 113, thereby driving the mounting frame 1 41 and the second sliding part 142 move toward the length direction of the long groove 113, and make the blackboard follow the mounting frame 141 to move, thereby completing the track change action; since the first sliding part 112 on the sliding component 11 is slidably connected to the guide rail 2, and the first sliding part 112 is installed on the support plate 111, after the track change action is completed, the support plate 111 moves in the guide rail 2, and the rotating wheel 147 moves in the guide structure 12, thereby driving the mounting frame 141 to move, thereby making the blackboard move along the length direction of the guide rail 2; in this way, when the sliding component 11 drives the track change component 14 to move, with the help of the track change groove 13, the track change part 143 and the rotating wheel 147 drive the mounting frame 141 and the second sliding part 142 to move toward the length direction of the long groove 113, thereby making the mounting frame 141 drive the blackboard to complete the track change action, and then the sliding component 11 drives the track change component 14 to move along the length direction of the guide rail 2, thereby driving the blackboard to move synchronously.
[0039] See also Figure 1 As a specific embodiment of the track-changing integrator provided by the utility model, a long protrusion 146 is provided on the mounting frame 141, and the long protrusion 146 corresponds to the long groove 113, and a plurality of mounting holes are opened on the lower end surface of the long protrusion 146, and the plurality of mounting holes are arranged in a line, and the track-changing part 143 is connected to the mounting hole; with the help of the mounting hole on the long protrusion 146, the track-changing part 143 is connected to the mounting frame 141, and at the same time, the mounting hole at a suitable position can be selected according to the groove width of the track-changing groove 13, so that the track-changing action of the track-changing assembly 14 is smoother.
[0040] See also Figure 1As a specific embodiment of the track-changing integrator provided by the utility model, two parallel and spaced limiting plates 114 are provided on the support plate 111, and the two limiting plates 114 are located on both sides of the long groove 113, and the length direction of the limiting plates 114 is consistent with the length direction of the long groove 113, and the second sliding part 142 is located between the two limiting plates 114 and is slidably connected to the side walls of the limiting plates 114; with the help of the limiting plates 114, when the track-changing part 143 and the track-changing wheel drive the mounting frame 141 and the second sliding part 142 to change the track, the mounting frame 141 and the second sliding part 142 only move toward the length direction of the long groove 113, preventing the mounting frame 141 and the second sliding part 142 from rotating during movement.
[0041] See also Figure 1 As a specific embodiment of the track change integrator provided by the utility model, the second sliding part 142 is also provided with a plurality of limiting wheels 144, and the plurality of limiting wheels 144 are all provided on the mounting frame 141, and are respectively located on both sides of the long protrusion 146, and the limiting wheels 144 are rotatably connected to the mounting frame 141; with the help of the limiting wheels 144, the second sliding part 142 drives the movement of the mounting frame 141 to be smoother.
[0042] See also Figure 1 As a specific embodiment of the track change integrator provided by the utility model, the rolling surface of the limiting wheel 144 is a concave surface, and the limiting plate 114 is provided with a limiting flange 116 that slides with the rolling surface; with the help of the limiting flange 116, the rotation of the limiting wheel 144 is more stable.
[0043] See also Figure 1 As a specific implementation of the track-changing integrator provided by the utility model, a spring stopper 15 is provided on the mounting frame 141; the main function of arranging the spring gasket on the mounting frame 141 is to prevent loosening between the mounting frame 141 and the limiting wheel 144 due to vibration, activity and the like.
[0044] See also Figure 1 As a specific embodiment of the track change integrator provided by the utility model, the track change assembly 14 also includes a connecting plate 145, one end of the connecting plate 145 is fixedly connected to the mounting frame 141, and the other end is fixedly connected to the blackboard; with the help of the connecting plate 145, the mounting frame 141 is easier to connect to the blackboard, and the connection between the mounting frame 141 and the blackboard is more secure.
[0045] See also Figure 1 , Figure 2 and Figure 4As a specific embodiment of the track change integrator provided by the utility model, a slide groove is provided in the guide rail 2, and the first sliding part 112 includes multiple rollers, and the multiple rollers are respectively located on both sides of the support plate 111, and the groove width of the slide groove is greater than the diameter of the roller, and the rolling surfaces of the rollers located at the head end and the end are in contact with the lower end surface of the slide groove, and the rolling surface of the roller located at the middle position is in contact with the upper end surface of the slide groove; because the groove width of the slide groove is greater than the diameter of the roller, and the rolling surfaces of the rollers located at the head end and the end are in contact with the lower end surface of the slide groove, and the rolling surface of the rollers located at the middle position is in contact with the upper end surface of the slide groove, therefore, without affecting the movement of the support plate 111 driven by the roller, the contact surface between the roller and the slide groove is reduced, thereby reducing the friction between the roller and the slide groove, so that the roller rolls more smoothly.
[0046] See also Figure 5 and Figure 6As a specific embodiment of the track-changing integrator provided by the utility model, a locking assembly 7 is provided at one end of the guide rail 2 away from the track-changing groove 13, which is used to limit the track-changing integrator 1 from driving the blackboard to move at will; the rollers located on both sides of the support plate 111 are provided with locking grooves 115, and the two locking grooves 115 are arranged oppositely, and the cross-section of the locking grooves 115 is arc-shaped; the locking assembly 7 includes a limit block 71, two locking blocks 72 and an elastic member 73, the limit block 71 is arranged in the guide rail 2 and is located above the support plate 111, and the limit block 7 A limiting hole 711 is provided, and the two opposite opening ends of the limiting hole 711 correspond to the locking grooves 115 of the two rollers respectively. Two locking blocks 72 are both arranged in the limiting hole 711 and are respectively located at the two opening ends. One end of the locking block 72 extends out of the limiting hole 711, and the other end is slidably connected with the limiting hole 711. An arc surface 721 is provided at one end of the locking block 72 close to the slide groove. The curvature of the arc surface 721 matches the arc-shaped locking groove 115. Both ends of the arc surface 721 are provided with inclined guide surfaces 722. When the locking cam 72 is in the closed position, the spring 721 of the locking cam 72 is in the closed position, and the spring 722 of the locking cam 72 is in the closed position, and the cam 72 is in the closed position, and the cam 72 is in the closed position, and the cam 72 is in the closed position, and the cam 72 is in the closed position, and the cam 72 is in the closed position, and the cam 72 is in the closed position, and the cam 72 is in the closed position, and the cam 72 is in the closed position, and the cam 72 is in the closed position, and the cam 72 is in the closed position, and the cam 72 is in the closed position, and the cam 72 is in the closed position, and the cam 72 is in the closed position, and the cam The locking block 72 is moved in the direction close to the roller, and the locking block 72 is stuck in the locking groove 115, so as to fix the roller, thereby preventing the blackboard from moving at will; when controlling the blackboard to reset, the blackboard is moved, and the wall of the locking groove 115 on the roller squeezes the guide surface 722 of the locking block 72, thereby retracting the locking block 72 into the limiting hole 711, and compressing the elastic member 73, and continuing to move the roller until the locking block 72 does not correspond to the locking groove 115, and then the blackboard can be moved, and the compressed elastic member 73 is reset, and pushes the locking block 72 to reset. The elastic member 73 is a spring; with the help of the guide surfaces 722 provided at both ends of the arc surface 721, the movement of the locking block 72 when squeezed by the roller and the locking groove 115 is smoother.
[0047] See also Figures 7 to 9 Another object of the present invention is to provide a track-changing integrated device, comprising two track-changing integrators 1 of any one of the above, wherein the two track-changing integrators 1 are arranged in parallel and at intervals.
[0048] The track changing integrated device provided by the present invention adopts two track changing integrators 1, and the sliding components 11 of the two track changing integrators 1 drive the two track changing components 14 to move. Therefore, with the help of two track changing grooves 13, the two track changing parts 143 drive the two mounting frames 141 to move toward the length direction of the long groove 113, and then the two mounting frames 141 drive the same blackboard to complete the track changing action, so that the track changing integrated device controls the track changing and movement of the blackboard more labor-saving.
[0049] Please refer to the figure Figures 7 to 9 As a specific embodiment of the track-changing integrated device provided by the utility model, the guide structures 12 of the two track-changing integrated devices 1 are arranged in parallel and spaced apart in the guide rail 2, and the tail of the track-changing groove 13 of one guide structure 12 is flush with the other guide structure 12, and the curvature of the track-changing groove 13 whose tail is flush with the guide structure 12 is greater than the curvature of the other track-changing groove 13, and the track-changing parts 143 of the two track-changing integrated devices 1 are staggered and respectively located in the two track-changing grooves 13; when the track-changing integrated device controls the movement of the blackboard, the two track-changing components 14 are moved by means of two curved arcs The track changing grooves 13 with different lengths move on the two sliding components 11 respectively, and drive the blackboard to move in the length direction of the long groove 113 to complete the track changing action, and at the same time make the track changing of the blackboard more labor-saving; then the two sliding components 11 drive the two track changing components 14 to move with the help of the guide rail 2, and at the same time, the rotating wheels 147 of the two track changing parts 143 move in the two guide structures 12 respectively, thereby driving the blackboard to move along the length direction of the guide rail 2; in this way, with the help of two track changing integrators 1, the track changing integrated device controls the track changing and movement of the blackboard more labor-saving.
[0050] See also Fig.10 Another object of the utility model is to provide a blackboard, including any one of the above-mentioned track change integrated devices, and also including a frame 3, a fixed blackboard 4 and a movable blackboard 5, the frame 3 is arranged on the wall, the guide rail 2 is arranged on the frame 3 and is arranged along the length direction of the frame 3, the fixed blackboard 4 is fixedly arranged on the frame 3, the movable blackboard 5 is arranged on the frame 3, and is located in the same plane as the fixed blackboard 4, the multimedia 6 is arranged on the frame 3, and is located between the movable blackboard 5 and the wall, and the track change integrated device is connected to the movable blackboard 5, and is used to drive the movable blackboard 5 to move to the front of the fixed blackboard 4.
[0051] The present invention provides a blackboard, which adopts a track-changing integrated device, and the movable blackboard 5 is arranged in front of the multimedia 6 by means of a frame 3, and the movable blackboard 5 and the fixed blackboard 4 are in the same horizontal plane. Therefore, when watching the multimedia 6, the movable blackboard 5 is controlled by the track-changing integrated device to first complete the track-changing action, and then moves from the front of the multimedia 6 to the front of the fixed blackboard 4; when the track-changing integrated device controls the movable blackboard 5 to move, the track-changing component 14 moves on the sliding component 11 by means of the track-changing groove 13, and drives the movable blackboard 5 to move in the direction away from the multimedia 6, that is, moves along the length direction of the long groove 113, and then the sliding component 11 drives the track-changing component 14 to move by means of the guide rail 2, and the track-changing component 14 moves in the guide structure 12, and then the movable blackboard 5 is moved to the front of the fixed blackboard 4, so that the multimedia 6 is moved. The multimedia 6 is exposed; when the multimedia 6 is not in use, the sliding component 11 moves in the guide rail 2, and drives the track changing component 14 to move in the guide structure 12, until the track changing component 14 drives the movable blackboard 5 to move in front of the multimedia 6, and then the track changing component 14 moves in the track changing groove 13, and drives the movable blackboard 5 to move in the direction close to the multimedia 6, until the movable blackboard 5 and the fixed blackboard 4 are in the same horizontal plane; in this way, the movable blackboard 5 is controlled to move with the help of the guide rail 2 and the track changer, and then the multimedia 6 is blocked or exposed. At the same time, the track changing groove 13 and the track changing component 14 are used to make the movable blackboard 5 and the fixed blackboard 4 in the same horizontal plane when the multimedia 6 is blocked, so as not to affect the continuity of teaching writing. When the multimedia 6 is exposed, the movable blackboard 5 moves to the front of the fixed blackboard 4, which does not affect the students' viewing of the multimedia 6.
[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A track change integrator, characterized in that: include: The sliding assembly comprises a support plate and a first sliding part mounted on the support plate, wherein the first sliding part is used for sliding connection to the guide rail; a long groove is formed on the support plate, and the length direction of the long groove is perpendicular to the moving direction of the first sliding part; A guide structure, which is used to be fixedly mounted on the guide rail, and the guide structure is provided with a track changing groove, and the track changing groove has an arc that is bent along the moving direction of the first sliding part toward a direction perpendicular to the moving direction of the first sliding part; The track changing assembly includes a mounting frame, a second sliding part mounted on the mounting frame, and a track changing part, wherein one end of the mounting frame is used to be fixedly connected to the blackboard; the second sliding part is slidably connected to the support plate, and the moving direction of the second sliding part is perpendicular to the moving direction of the first sliding part; the track changing part extends downward from the mounting frame and is slidably connected to the long groove, and the lower end of the track changing part is provided with a rotating wheel that cooperates with the track changing groove.
2. A track change integrator as claimed in claim 1, characterized in that: The mounting frame is provided with a long protrusion, and the long protrusion corresponds to the long groove; the long protrusion is provided with a plurality of mounting holes, and the plurality of mounting holes are arranged in a line; the track changing part is connected with the mounting holes.
3. A track change integrator as claimed in claim 2, characterized in that: The support plate is provided with two parallel and spaced limit plates, and the two limit plates are located on both sides of the long groove, and the length direction of the limit plates is consistent with the length direction of the long groove; the second sliding part is located between the two limit plates and is slidably connected to the side walls of the limit plates.
4. A track change integrator as claimed in claim 3, characterized in that: The second sliding part is further provided with a plurality of limiting wheels, which are all arranged on the mounting frame and are respectively located on both sides of the long protrusion, and the limiting wheels are rotatably connected to the mounting frame.
5. A track change integrator as claimed in claim 4, characterized in that: The rolling surface of the limiting wheel is a concave surface, and the limiting plate is provided with a limiting flange that slides in cooperation with the rolling surface.
6. A track-changing integrator as claimed in claim 4, characterized in that: A spring stopper is arranged on the mounting frame.
7. The track-changing integrator according to claim 1, characterized in that: The track changing assembly also includes a connecting plate, one end of which is fixedly connected to the mounting frame, and the other end of which is fixedly connected to the blackboard.
8. A track-changing integrated device, characterized in that: It comprises two track-changing integrators as described in any one of claims 1 to 7, wherein the two track-changing integrators are arranged in parallel and at intervals.
9. The track-changing integrated device according to claim 8, characterized in that: The guide structures of the two track-changing integrators are arranged in parallel and at intervals in the guide rail, the tail of the track-changing groove on one guide structure is flush with the other guide structure, and the curvature of the track-changing groove whose tail is flush with the guide structure is greater than the curvature of the other track-changing groove; the track-changing parts of the two track-changing integrators are staggered and are respectively located in the two track-changing grooves.
10. A blackboard, characterized in that: It comprises a track-changing integrated device as described in any one of claims 8 to 9; it also comprises a frame, a fixed blackboard and a movable blackboard, wherein the guide rail is arranged on the frame and along the length direction of the frame.