Portable interaction device for mobile teaching in mathematical geometry field

Abstract

The invention discloses a portable interaction device for mobile teaching in the field of mathematics geometry, which comprises a supporting table, self-locking wheels are mounted at four corners of the bottom of the supporting table, a height-adjustable lifting column is arranged in the supporting table, an adjusting rod is slidably connected in the lifting column in a matched manner, and an electric telescopic rod is fixedly mounted at the bottom of the lifting column. The end of a piston rod of the electric telescopic rod extends into the lifting column to be fixedly connected with an adjusting rod, a projector is installed at the end, located outside the lifting column, of the adjusting rod, a groove is formed in one side wall of the adjusting rod, a display screen is arranged in the groove, and a fixing assembly is arranged on the surface, located above the groove, of the adjusting rod. The teaching system has the advantages that three teaching modes of projection, the touch display screen and the blackboard are integrated, a teacher can freely switch dynamic demonstration, electronic marking and traditional blackboard writing, different teaching requirements are met, the display screen supports touch interaction, the teacher can conveniently and directly conduct geometric drawing, marking or teaching software calling on the screen, and classroom interactivity is enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of teaching equipment, and particularly to a portable interactive device for mobile teaching in the field of mathematics geometry. Background Technique

[0002] Mathematically, solid geometry is the traditional name for the geometry of three-dimensional Euclidean space. Generally, it is a subsequent course to plane geometry. Solid surveying deals with the measurement problems of the volumes of different shapes: cylinders, cones, frustums, spheres, prisms, wedges, bottle caps, and so on. The Pythagorean school dealt with spheres and regular polyhedra, but little was known about pyramids, prisms, cones, and cylinders before the Platonic school began to deal with them.

[0003] With the development of modern educational technology, higher requirements are put forward for the interactivity and visualization of geometry teaching. Traditional teaching tools such as static blackboards and fixed projection devices are difficult to meet the needs of dynamic demonstrations and the display of spatial geometric bodies. Especially in mobile teaching scenarios, teachers often face problems such as inconvenient equipment handling and inflexible height adjustment. Existing portable teaching devices mostly have defects such as single function and poor interactivity, and cannot effectively integrate projection, touch display, and blackboard writing functions, restricting the improvement of teaching effects.

[0004] According to the lifting projection device proposed in Patent CN210515404U, although it only solves the problem of height adjustment and does not integrate an interactive screen and blackboard writing function, the teaching effect is poor; although the mobile teaching box designed in CN211349203U is convenient for handling, its modularity is insufficient and it cannot realize the real-time dynamic demonstration of geometric figures. Therefore, we propose a portable interactive device for mobile teaching in the field of mathematics geometry. Summary of the Invention

[0005] The purpose of the present invention is to provide a portable interactive device for mobile teaching in the field of mathematics geometry to solve the problems raised in the above background technique.

[0006] To achieve the above object, the present invention provides the following technical solutions: a portable interactive device for mobile teaching in the field of mathematical geometry, including a support platform. Self-locking wheels are installed at the four corners of the bottom of the support platform. An elevating column with adjustable height is arranged inside the support platform, and an adjusting rod is slidably connected in the elevating column in a matching manner. An electric telescopic rod is fixedly installed at the bottom of the elevating column, and the end of the piston rod of the electric telescopic rod extends into the elevating column and is fixedly connected to the adjusting rod. A projector is installed at one end of the adjusting rod located outside the elevating column. A groove is formed on one side wall of the adjusting rod, and a display screen is arranged in the groove. A fixing component is arranged on the surface of the adjusting rod above the groove. The display screen is fixedly installed on the surface of the adjusting rod through the fixing component. A blackboard is installed on the other side wall of the adjusting rod. First storage drawers and second storage drawers are respectively arranged at the tops of the corresponding two side walls of the support platform. Partition plates are arranged at equal intervals in the first storage drawer.

[0007] Preferably, a bidirectional lead screw is rotatably connected to the bottom end inside the support platform through a bearing. A servo motor is fixedly installed at the bottom end of the side wall of the support platform, and the end of the output shaft of the servo motor extends into the support platform and is fixedly connected to the bidirectional lead screw. Sliding seats are symmetrically threaded on both ends of the bidirectional lead screw. A support rod is rotatably connected to the top end of the sliding seat. Connecting seats are symmetrically arranged at the bottom of the elevating column. The end of the support rod is rotatably connected to the connecting seat.

[0008] Preferably, the fixing component includes a fixing rod, a sliding rod, a lifting rod and a spring. A fixing rod is fixedly connected above the display screen on the side wall of the adjusting rod. Sliding rods are symmetrically and slidably arranged in the fixing rod. The bottom ends of the two sliding rods are fixedly connected to the lifting rod. The lifting rod is slidably connected to the side wall of the adjusting rod. A spring is sleeved outside the sliding rod between the lifting rod and the fixing rod. The lifting rod contacts the top of the display screen. The top ends of the two sliding rods slide through the fixing rod and are fixedly connected to a pull rod.

[0009] Preferably, a card slot is formed at the top of the display screen. A convex rod is integrally arranged at the bottom of the lifting rod, and the convex rod is clamped in the card slot.

[0010] Preferably, mounting plates are symmetrically and fixedly connected to the top of the support platform, and a U-shaped protection plate is rotatably connected between the two mounting plates. Tightening knobs are arranged at the top ends of the two mounting plates. Fixing holes are formed on the corresponding two side walls of the U-shaped protection plate. The end of the tightening knob is threadedly connected in the fixing hole.

[0011] Preferably, a storage bin is arranged at the bottom end of one side wall of the support platform, and cabinet doors are hinged on both sides of the surface of the support platform where the storage bin is located.

[0012] Preferably, guide rods are symmetrically and fixedly connected between the corresponding two inner walls of the support platform. Horizontal guide holes are symmetrically formed on both sides of the two sliding seats, and the two guide rods are respectively slidably connected in the two guide holes of the sliding seats.

[0013] Preferably, a connection groove is formed on the side of the adjusting rod away from the display screen. The blackboard is clamped in the connection groove. Connecting plates are arranged at the top and bottom of the connection groove on the side wall of the adjusting rod, and fastening bolts are arranged at the top of the connecting plate. Fastening holes matching the fastening bolts are symmetrically formed at the top of the blackboard. The fastening bolts on the connecting plate on the side wall of the adjusting rod are threadedly connected with the fastening holes.

[0014] Preferably, push rods are arranged at the tops of the corresponding two side walls of the support platform.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The present invention integrates three teaching methods: projection, touch display screen, and blackboard. Teachers can freely switch between dynamic demonstration, electronic annotation, and traditional blackboard writing to meet different teaching needs. The display screen supports touch interaction, facilitating teachers to directly perform geometric drawing, annotation, or call teaching software on the screen, enhancing classroom interactivity.

[0017] 2. The display screen of the present invention is installed in a snap - fit manner using a fixing component, which is convenient for disassembly, replacement, or upgrade; the blackboard is fixed by fastening bolts and can be replaced with an electronic whiteboard or other teaching panels, improving the expandability and service life of the device. The storage drawer and the bottom storage bin optimize the storage of teaching aids, keeping the teaching environment clean and tidy.

[0018] 3. Through the cooperation of the servo motor, bidirectional lead screw, sliding seat, support rod, and lifting column, as well as the cooperation of the electric telescopic rod and the adjusting rod, the present invention can flexibly adjust the heights of the projector, display screen, and blackboard to adapt to different classroom environments and the viewing angle requirements of students, ensuring that all students can clearly view the teaching content. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the overall structure of the present invention;

[0020] Figure 2 is a schematic sectional view structure diagram of the present invention;

[0021] Figure 3 is a schematic structural diagram of the overall structure of the present invention;

[0022] Figure 4 is a schematic sectional view structure diagram of the present invention;

[0023] Figure 5 is a schematic structural diagram of the fixing component of the present invention.

[0024] In the figure: 1, support platform; 2, first storage drawer; 3, second storage drawer; 4, lifting column; 5, partition board; 6, electric telescopic rod; 7, adjusting rod; 8, projector; 9, display screen; 10, blackboard; 11, fixing component; 12, mounting plate; 13, U-shaped protection plate; 14, fastening knob; 15, fixing hole; 16, self-locking wheel; 17, bidirectional lead screw; 18, servo motor; 19, sliding seat; 20, support rod; 21, connecting seat; 22, guide rod; 23, fixing rod; 24, sliding rod; 25, lifting rod; 26, spring; 27, convex rod; 28, pull rod; 29, cabinet door; 30, push rod. Specific implementation manner

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figure 1 and Figure 2 , the present invention provides a technical solution: a portable interactive device for mobile teaching in the field of mathematics geometry, including a support platform 1. Self-locking wheels 16 are installed at the four corners of the bottom of the support platform 1. A lifting column 4 with adjustable height is arranged inside the support platform 1. An adjusting rod 7 is slidably connected in the lifting column 4 in a matching manner. An electric telescopic rod 6 is fixedly installed at the bottom of the lifting column 4. The piston rod end of the electric telescopic rod 6 extends into the lifting column 4 and is fixedly connected to the adjusting rod 7. A projector 8 is installed at one end of the adjusting rod 7 outside the lifting column 4.

[0027] It should be noted that the projector 8 is detachably installed at the top of the adjusting rod 7 and can project geometric figures, dynamic models or teaching courseware, which is convenient for students to intuitively understand the spatial geometric relationship. The cooperation of the electric telescopic rod 6 and the adjusting rod 7 can adjust the heights of the projector 8, the display screen 9 and the blackboard 10 to adapt to different teaching scenarios (such as differences in the heights of student seats).

[0028] A groove is formed on one side wall of the adjusting rod 7, and a display screen 9 is arranged in the groove. A fixing component 11 is arranged on the surface of the adjusting rod 7 above the groove. The display screen 9 is fixedly installed on the surface of the adjusting rod 7 through the fixing component 11. A blackboard 10 is installed on the other side wall of the adjusting rod 7. First storage drawers 2 and second storage drawers 3 are respectively arranged at the top ends of the corresponding two side walls of the support platform 1. Partition boards 5 are arranged at equal intervals in the first storage drawer 2.

[0029] It should be noted that partition plates 5 are equidistantly installed in the first storage drawer 2. The area between two adjacent partition plates 5 can be used to place teaching aids such as geometric entities and books. The second storage drawer 3 can be used to store teaching utensils. When in use, the first storage drawer 2 and the second storage drawer 3 can be directly pulled open to take and use the items.

[0030] Please refer to Figure 2 , the bottom end inside the support platform 1 is rotatably connected to a bidirectional lead screw 17 through a bearing. The bottom end of the side wall of the support platform 1 is fixedly installed with a servo motor 18, and the end of the output shaft of the servo motor 18 extends into the support platform 1 and is fixedly connected to the bidirectional lead screw 17. The two ends of the bidirectional lead screw 17 are symmetrically threadedly connected with sliding seats 19. The top end of the sliding seat 19 is rotatably connected to a support rod 20. The bottom of the lifting column 4 is symmetrically provided with connecting seats 21. The end of the support rod 20 is rotatably connected to the connecting seat 21.

[0031] It should be noted that the device is provided with a controller for control. By controlling the operation of the servo motor 18, the bidirectional lead screw 17 can be driven to rotate. Through the threaded connection between the two sliding seats 19 and the two ends of the bidirectional lead screw 17, the two sliding seats 19 can be controlled to approach or move away from each other. When the two sliding seats 19 approach each other, under the action of the support rod 20, the lifting column 4 is lifted, so that the lifting column 4 rises.

[0032] Please refer to Figure 3 and Figure 5 , the fixing component 11 includes a fixing rod 23, a sliding rod 24, a lifting rod 25 and a spring 26. A fixing rod 23 is fixedly connected to the side wall of the adjusting rod 7 above the display screen 9. The sliding rod 24 is symmetrically and slidably arranged inside the fixing rod 23. The bottoms of the two sliding rods 24 are fixedly connected to a lifting rod 25. The lifting rod 25 is slidably connected to the side wall of the adjusting rod 7. A spring 24 is sleeved outside the sliding rod 24 between the lifting rod 25 and the fixing rod 23. The lifting rod 25 contacts the top of the display screen 9. The tops of the two sliding rods 24 slide through the fixing rod 23 and are fixedly connected to a pull rod 28.

[0033] It should be noted that when the present invention is in use, the teacher pushes the device to a suitable position in the teaching area, so that the projector 8 can project the image onto the curtain in the front of the classroom. The control system set in the device is used to control the operation of the servo motor 18, so that the bidirectional lead screw 17 rotates. Through the threaded connection between the two sliding seats 19 and the bidirectional lead screw 17, the two sliding seats 19 approach each other. Under the action of the support rod 20, the height of the lifting column 4 increases. In cooperation with the operation of the electric telescopic rod 6, the adjusting rod 7 can slide out of the lifting column 4, which can further increase the height of the projector 8 and the display screen 9, facilitating adjustment and use according to needs. The projector 8 is detachably installed on the top of the adjusting rod 7 and can project geometric figures, dynamic models or teaching courseware, facilitating students to intuitively understand the spatial geometric relationship. The display screen 9 is detachably installed in the groove on the side wall of the adjusting rod 7 and supports touch interaction. The teacher can directly mark, draw or call teaching software on the screen, enhancing the interactivity of the classroom. When installing the display screen 9, the pull rod 28 can be pulled to make the lifting rod 25 slide upward, and then the display screen 9 is correspondingly clamped into the groove on the side wall of the adjusting rod 7. Then, the pull rod 28 is released, and the lifting rod 25 is pressed against the top of the display screen 9 under the action of the spring 26. The convex rod 27 at the bottom of the lifting rod 25 is correspondingly clamped into the card slot of the outer frame of the display screen 9, so that the position of the display screen 9 is quickly fixed. When the display screen 9 is not in use, the U-shaped protection plate 13 can be rotated to surround the display screen 9, realizing dust prevention and anti-misoperation protection for the display screen 9. The blackboard 10 is provided for convenient written display during teaching, helping students to better understand. The first storage drawer 2 and the second storage drawer 3 can be used to store teaching utensils and books, facilitating teaching use.

[0034] Please refer to Figure 3 and Figure 5 , a card slot is provided at the top of the display screen 9, and a convex rod 27 is integrally provided at the bottom of the lifting rod 25, and the convex rod 27 is clamped in the card slot.

[0035] It should be noted that the convex rod 27 at the bottom of the lifting rod 25 is tightly clamped in the card slot at the top of the outer frame of the display screen 9, so that the display screen 9 is firmly installed.

[0036] Please refer to Figure 3 , mounting plates 12 are symmetrically fixedly connected to the top of the support table 1, and a U-shaped protection plate 13 is rotatably connected between the two mounting plates 12. Tightening knobs 14 are provided at the tops of the two mounting plates 12. Fixing holes 15 are provided on the corresponding two side walls of the U-shaped protection plate 13, and the end of the tightening knob 14 is threadedly connected in the fixing hole 15.

[0037] It should be noted that the U-shaped protection plate 13 is fixed by the tightening knob 14 and covers the display screen 9 when the device is moved or stored to prevent it from being damaged by collision.

[0038] Please refer to Figure 3, a storage bin is provided at the bottom end of one side wall of the support platform 1, and cabinet doors 29 are hinged on both sides of the storage bin on the surface of the support platform 1.

[0039] It should be noted that the setting of the storage bin facilitates the storage of items, and the setting of the cabinet doors 29 facilitates the opening and closing of the storage bin to take and place items.

[0040] Please refer to Figure 1 , guide rods 22 are symmetrically and fixedly connected between the corresponding two inner walls of the support platform 1. Horizontal guide holes are symmetrically opened on both sides of the two sliding seats 19, and the two guide rods 22 are respectively slidably connected in the two guide holes of the sliding seats 19.

[0041] It should be noted that the setting of the guide rods 22 can limit the movement of the sliding seats 19 and ensure their stable movement.

[0042] Please refer to Figure 1 , a connecting groove is provided on the side of the adjusting rod 7 away from the display screen 9. The blackboard 10 is snap-fitted in the connecting groove. Connecting plates are provided at the top and bottom of the connecting groove on the side wall of the adjusting rod 7, and fastening bolts are provided at the top of the connecting plates. Fastening holes matching the fastening bolts are symmetrically opened at the top of the blackboard 10, and the fastening bolts on the connecting plates on the side wall of the adjusting rod 7 are threadedly connected with the fastening holes.

[0043] It should be noted that the blackboard 10 is fixed by the fastening bolts, and can be conveniently replaced with an electronic whiteboard or other teaching panels, improving the expandability and service life of the device.

[0044] Please refer to Figure 1 , push rods 30 are provided at the top ends of the corresponding two side walls of the support platform 1.

[0045] It should be noted that the cooperation of the push rods 30 and the self-locking wheels 16 facilitates the movement of the device and makes it more convenient to carry.

[0046] In addition, the terms "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third", and "fourth" may explicitly or implicitly include at least one of such features.

[0047] In the present invention, unless otherwise clearly specified and defined, terms such as "installation", "setting", "connection", "fixation", "swivel connection", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable interactive device for mobile teaching in the field of mathematics and geometry, characterized in that, It includes a support platform (1), self-locking wheels (16) are installed at the four corners of the bottom of the support platform (1), a height-adjustable lifting column (4) is arranged inside the support platform (1), and an adjusting rod (7) is slidably connected in the lifting column (4) in a matching manner. An electric telescopic rod (6) is fixedly installed at the bottom of the lifting column (4), and the end of the piston rod of the electric telescopic rod (6) extends into the lifting column (4) and is fixedly connected to the adjusting rod (7). A projector (8) is installed at one end of the adjusting rod (7) located outside the lifting column (4). A groove is formed on one side wall of the adjusting rod (7), and a display screen (9) is arranged in the groove. A fixing assembly (11) is arranged on the surface of the adjusting rod (7) above the groove. The display screen (9) is fixedly installed on the surface of the adjusting rod (7) through the fixing assembly (11). A blackboard (10) is installed on the other side wall of the adjusting rod (7). First storage drawers (2) and second storage drawers (3) are respectively arranged at the tops of the corresponding two side walls of the support platform (1). Partition plates (5) are arranged in the first storage drawer (2) at equal intervals.

2. The portable interactive device for mobile teaching in the mathematical geometry field according to claim 1, characterized in that: A bidirectional lead screw (17) is rotatably connected to the bottom end inside the support platform (1) through a bearing. A servo motor (18) is fixedly installed at the bottom end of the side wall of the support platform (1), and the end of the output shaft of the servo motor (18) extends into the support platform (1) and is fixedly connected to the bidirectional lead screw (17). Sliding seats (19) are symmetrically threaded on both ends of the bidirectional lead screw (17). A support rod (20) is rotatably connected to the top end of the sliding seat (19). Connecting seats (21) are symmetrically arranged at the bottom of the lifting column (4). The end of the support rod (20) is rotatably connected to the connecting seat (21).

3. The portable interactive device for mobile teaching in the field of mathematical geometry according to claim 1, characterized in that: The fixing assembly (11) includes a fixing rod (23), a sliding rod (24), a lifting rod (25) and a spring (26). The fixing rod (23) is fixedly connected to the side wall of the adjusting rod (7) above the display screen (9). The sliding rods (24) are symmetrically and slidably arranged in the fixing rod (23). The bottom ends of the two sliding rods (24) are fixedly connected to the lifting rod (25). The lifting rod (25) is slidably connected to the side wall of the adjusting rod (7). A spring (26) is sleeved outside the sliding rod (24) between the lifting rod (25) and the fixing rod (23). The lifting rod (25) contacts the top of the display screen (9). The top ends of the two sliding rods (24) slide through the fixing rod (23) and are fixedly connected to a pull rod (28).

4. The portable interactive device for mobile teaching in the field of mathematical geometry according to claim 3, characterized in that: A card slot is formed at the top of the display screen (9). A convex rod (27) is integrally arranged at the bottom of the lifting rod (25), and the convex rod (27) is clamped in the card slot.

5. The portable interactive device for mobile teaching in the field of mathematical geometry according to claim 1, characterized in that: Mounting plates (12) are symmetrically and fixedly connected to the top of the support platform (1), and a U-shaped protection plate (13) is rotatably connected between the two mounting plates (12). Tightening knobs (14) are arranged at the top ends of the two mounting plates (12). Fixing holes (15) are formed on the corresponding two side walls of the U-shaped protection plate (13). The end of the tightening knob (14) is threadedly connected in the fixing hole (15).

6. The portable interactive device for mobile teaching in the field of mathematical geometry according to claim 1, characterized in that: A storage bin is provided at the bottom end of one side wall of the support table (1), and cabinet doors (29) are hinged on both sides of the storage bin on the surface of the support table (1).

7. The portable interactive device for mobile teaching in the field of mathematical geometry according to claim 2, characterized in that: Guide rods (22) are symmetrically and fixedly connected between the corresponding two inner walls of the support table (1). Horizontal guide holes are symmetrically formed on both sides of the two sliding seats (19), and the two guide rods (22) are respectively slidably connected in the two guide holes of the sliding seats (19).

8. The portable interactive device for mobile teaching in the field of mathematical geometry according to claim 1, characterized in that: A connection groove is formed on the side of the adjusting rod (7) away from the display screen (9). The blackboard (10) is clamped in the connection groove. Connecting plates are arranged at the top and bottom of the connection groove on the side wall of the adjusting rod (7), and fastening bolts are arranged at the top of the connecting plates. Fastening holes matched with the fastening bolts are symmetrically formed at the top of the blackboard (10), and the fastening bolts on the connecting plates on the side wall of the adjusting rod (7) are threadedly connected with the fastening holes.

9. The portable interactive device for mobile teaching in the field of mathematical geometry according to claim 1, characterized in that: Push rods (30) are provided at the top ends of the corresponding two side walls of the support table (1).

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