Intelligent teaching instrument for law education

Abstract

The invention relates to the technical field of teaching equipment, in particular to an intelligent teaching instrument for law education, which comprises a shell, a connecting rod and the like, and the shell is fixedly connected with a connecting rod. According to the invention, a whiteboard film is pasted on the surface of the curtain, so that a teacher can directly write on the surface of the curtain by using a whiteboard pen without repeatedly switching between the curtain and a blackboard, and two first electric sliding blocks located on the same abutting plate move in opposite directions and drive a cross connecting rod to unfold, so that the operation is convenient, and the teaching efficiency is improved. The crossed connecting rods drive the abutting plates to be far away from each other, so that the folding plates are gradually pulled and straightened through the abutting plates, the abutting plates and the folding plates are matched to form a whole back plate, and when writing is conducted on the surface of the curtain, the abutting plates and the folding plates can serve as supports, so that sinking deformation of the curtain is avoided; therefore, normal writing operation can be carried out on the curtain.

Description

Technical Field

[0001] The present invention relates to the technical field of teaching equipment, and particularly relates to an intelligent teaching instrument for legal education. Background Art

[0002] In the legal teaching scenario, teachers usually need to display legal cases, relevant materials and pictures through projection, and at the same time, they also need to make additional records or annotations on the blackboard, such as drawing role legal relationship diagrams and mind maps, etc. By combining real-time blackboard writing for explanation, the rationality of legal teaching can be effectively improved to ensure the teaching effect. However, the existing projection screen and the blackboard are independent of each other, and teachers need to switch between the projection screen and the blackboard repeatedly and walk back and forth, which not only slows down the teaching rhythm but also distracts the students' attention, affecting the classroom efficiency and teaching coherence. Summary of the Invention

[0003] In order to overcome the drawback that the existing projection screen and the blackboard are independent of each other, and teachers need to switch between the projection screen and the blackboard repeatedly, affecting the classroom efficiency and teaching coherence, the present invention provides an intelligent teaching instrument for legal education.

[0004] The technical solution is as follows: An intelligent teaching instrument for legal education includes a housing, a connecting rod, a projector and a screen; a connecting rod is fixedly connected to the housing; the projector is connected to the connecting rod; the screen is wound in the housing; it further includes a driving component, a cleaning rod, a sponge, a abutting plate, a cross-linking rod and a folding plate; a whiteboard film is attached to the surface of the screen; the driving component is connected to the housing; the driving component is connected to the cleaning rod, and the cleaning rod is located in front of the screen, and the driving component is used to drive the cleaning rod to move left and right; a sponge for cleaning the screen is fixedly connected to the rear side of the cleaning rod; a plurality of abutting plates are connected to the lower side of the housing, and the abutting plates are located behind the screen. The uppermost abutting plate is fixedly connected to the housing, and adjacent abutting plates are connected by a cross-linking rod. The abutting plate is rotationally connected to the cross-linking rod through a first electric slider. The cross-linking rod is arranged on the side of the abutting plate away from the screen, and the first electric slider is slidably connected to the abutting plate; an adjacent pair of abutting plates are commonly fixedly connected to a folding plate, and the folding plate faces the screen.

[0005] As a further preferred solution, a plurality of horizontally arranged support steel bars are fixedly connected to the rear side of the screen.

[0006] As a further preferred solution, each abutting plate is embedded with an electromagnet.

[0007] As a further preferred solution, a magnet can be arranged in the abutting plate to replace the embedded electromagnet.

[0008] As a further preferred solution, a first slide rail is fixedly connected to the bottom of the screen; a sliding block is slidably connected to the first slide rail, and the sliding block is rotationally connected to the other end of the cleaning rod.

[0009] As a further preferred solution, the driving component is connected to the cleaning rod through an electric rotating rod.

[0010] As a further preferred solution, a telescopic rod is connected to the front side of the connecting rod through an electric rotating rod; the telescopic end of the telescopic rod is rotationally connected to the projector in a damped manner.

[0011] As a further preferred solution, a rubber layer is attached to the side of each abutting plate and folding plate close to the curtain.

[0012] As a further preferred solution, it further includes a rotating block and a winding rod; the folding plate is fixedly connected to the lower side of the other abutting plates except the lowermost one; except for the uppermost abutting plate, a rotating block is rotatably connected to the left and right sides of the other abutting plates through torsion springs; two rotating blocks located on the same abutting plate are jointly rotatably connected to a winding rod through a torsion spring, and the winding rod winds up the folding plate.

[0013] As a further preferred solution, a liquid storage cavity is arranged inside the cleaning rod, and a through hole communicating with the liquid storage cavity is opened on the side of the cleaning rod in contact with the sponge.

[0014] The present invention has the following advantages: The present invention realizes that a whiteboard film is attached to the surface of the curtain, enabling the teacher to directly write on the surface of the curtain with a whiteboard pen without having to repeatedly switch between the curtain and the blackboard. Through the two first electric sliders located on the same abutting plate moving towards each other, the first electric sliders drive the cross-linking rod to unfold, so that the cross-linking rod drives the abutting plates to move away from each other, thereby gradually pulling and straightening the folding plate through the abutting plates. A whole back plate is formed by the cooperation of the abutting plates and the folding plate. When writing on the surface of the curtain, the abutting plates and the folding plate can be used as supports to avoid the curtain from deforming and sagging, so as to realize normal writing operations on the curtain;

[0015] When switching to the next screen and it is necessary to erase the written handwriting, the second electric slider can be controlled to drive the cleaning rod and the sponge to slide from the left side to the right side of the curtain, and the sponge wipes the entire surface of the curtain to quickly erase the handwriting on the curtain without the teacher having to manually erase it, enabling the teacher to use the time for wiping the curtain for teaching legal content to students, improving the teaching coherence and teaching speed;

[0016] Support steel bars are arranged at the rear of the curtain, so that after the curtain is unfolded, the electromagnet on the abutting plate can be activated to magnetically fix the support steel bars, thereby realizing the fixation of the curtain and effectively preventing the curtain from swinging during use;

[0017] When replacing the electromagnet inside the abutment plate with a magnet, during the process of gradually unfolding the curtain, by controlling the electric rotating rod on the second electric slider to drive the cleaning rod to rotate downward synchronously, and at the same time controlling the second electric slider to drive the upper end of the cleaning rod to move adaptively to the right, thereby pushing the bottom of the curtain downward through the cleaning rod until the cleaning rod rotates to a vertical state. At this time, all the support steel bars are magnetically attached to the corresponding abutment plates, thus avoiding the situation where the support steel bars located under the curtain are magnetically fixed by the magnets inside the upper abutment plates, resulting in the curtain being unable to be unfolded normally. Description of the Drawings

[0018] Figure 1 Schematic three-dimensional structure diagram of the intelligent teaching instrument for legal education of the present invention;

[0019] Figure 2 Schematic three-dimensional structure diagram of the combination of the housing and the curtain of the present invention;

[0020] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of area A in

[0021] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of area B in

[0022] Figure 5 Schematic three-dimensional structure diagram of the combination of the abutment plate, the cross-linking rod and the folding plate of the present invention;

[0023] Figure 6 Schematic three-dimensional structure diagram of the combination of the connecting component and the cleaning component of the present invention;

[0024] Figure 7 First perspective view of the storage state of the present invention;

[0025] Figure 8 Second perspective view of the storage state of the present invention.

[0026] Wherein: 1 - housing, 1001 - electric rotating shaft, 2 - connecting rod, 2001 - telescopic rod, 3 - projector, 4 - curtain, 4001 - support steel bar, 4002 - first slide rail, 4003 - sliding block, 5 - abutment plate, 5001 - first electric slider, 6 - cross-linking rod, 7 - folding plate, 101 - rotating block, 102 - winding rod, 201 - second slide rail, 202 - second electric slider, 203 - cleaning rod, 204 - sponge. Detailed Description of the Invention

[0027] The present invention will be further described below in conjunction with specific embodiments. It should also be noted that unless otherwise clearly specified and defined, terms such as "set", "installed", "connected", and "linked" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; 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. 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 situations.

[0028] Embodiment 1

[0029] An intelligent teaching instrument for legal education, as Figures 1 - 8 shown, includes a housing 1, a connecting rod 2, a projector 3 and a screen 4; a connecting rod 2 is bolted to the upper side of the housing 1; a projector 3 is connected to the connecting rod 2; an electric rotating shaft 1001 is arranged inside the housing 1, and a screen 4 is wound on the electric rotating shaft 1001, and a release slot is opened on the lower side of the housing 1;

[0030] It also includes a driving component, a cleaning rod 203, a sponge 204, a abutting plate 5, a cross-linking rod 6 and a folding plate 7; a whiteboard film is attached to the surface of the screen 4; a driving component is connected to the housing 1; the driving component is connected to a cleaning rod 203, and the cleaning rod 203 is located in front of the screen 4; a sponge 204 is fixedly connected to the rear side of the cleaning rod 203; four abutting plates 5 are connected to the lower side of the housing 1, and the abutting plates 5 are located behind the screen 4. The uppermost abutting plate 5 is fixedly connected to the housing 1, and adjacent abutting plates 5 are connected by two cross-linking rods 6 that are hinged to each other. The abutting plate 5 is rotatably connected to the cross-linking rod 6 through a first electric slider 5001. The cross-linking rod 6 is arranged on the side of the abutting plate 5 away from the screen 4, and the first electric slider 5001 is slidably connected to the abutting plate 5; an adjacent pair of abutting plates 5 are commonly fixedly connected to a folding plate 7, and the folding plate 7 faces the screen 4.

[0031] The driving component includes a second slide rail 201 and a second electric slider 202; the second slide rail 201 is bolted to the lower side of the housing 1; the second electric slider 202 is slidably connected to the second slide rail 201; the second electric slider 202 is connected to the cleaning rod 203.

[0032] Four horizontally arranged support steel bars 4001 are fixedly connected to the rear side of the screen 4, and the screen 4 is supported and tightened through the support steel bars 4001 to ensure the flatness of the screen 4.

[0033] Each abutting plate 5 is internally embedded with an electromagnet.

[0034] To reduce costs and at the same time reduce power consumption, magnets can be provided inside the abutting plate 5 to replace the embedded electromagnets.

[0035] A first slide rail 4002 is fixedly connected to the bottom of the curtain 4; a sliding block 4003 is slidably connected to the first slide rail 4002, and the sliding block 4003 is rotatably connected to the other end of the cleaning rod 203.

[0036] The second electric slider 202 is connected to the cleaning rod 203 through an electric rotating rod.

[0037] The front side of the connecting rod 2 is connected to a telescopic rod 2001 through an electric rotating rod; the telescopic end of the telescopic rod 2001 is rotatably connected to the projector 3 in a damped manner; when the projector 3 is not in use, the electric rotating rod on the connecting rod 2 can be controlled to drive the telescopic rod 2001 and the projector 3 to rotate downward, and the telescopic rod 2001 can be controlled to contract to reduce the space occupation.

[0038] A rubber layer is attached to the side of each abutting plate 5 and the folding plate 7 close to the curtain 4 to prevent the abutting plate 5 and the folding plate 7 from wearing the curtain 4 when the curtain 4 is unfolded and stored.

[0039] It also includes a rotating block 101 and a winding rod 102; the folding plate 7 is fixedly connected to the lower side of the abutting plates 5 except the lowermost one; except for the uppermost abutting plate 5, a rotating block 101 is rotatably connected to the left and right sides of the other abutting plates 5 through torsion springs; two rotating blocks 101 located on the same abutting plate 5 are jointly rotatably connected to a winding rod 102 through a torsion spring, and the winding rod 102 winds the folding plate 7.

[0040] The following description is based on Figure 1 the perspective reference, where the side where the projector 3 is located is the front side;

[0041] During use, the housing 1 is fixed to a wall or a crossbeam through bolts. When it is necessary to use the present invention to project and display cases and relevant materials for legal education to display legal cases, relevant materials and pictures, the electric rotating shaft 1001 is controlled to rotate to unwind the curtain 4 stored inside the housing 1, as Figure 1As shown, the curtain 4 is unfolded, and then the picture is projected onto the surface of the curtain 4 through the projector 3. Since teachers usually make additional records or annotations, such as drawing legal relationship diagrams of characters and mind maps, etc., to improve the coherence of legal teaching when explaining legal cases. By attaching a whiteboard film to the surface of the curtain 4, the teacher can directly write on the surface of the curtain 4 with a whiteboard pen, without having to switch back and forth between the curtain 4 and the blackboard, which affects the teaching coherence and the students' concentration. During the teaching process, when switching to the next picture, the written handwriting needs to be erased to avoid affecting the subsequent teaching content. However, during teaching, the teacher will write extensively on the curtain 4, resulting in a long time-consuming wiping process by the teacher and affecting the teaching speed. At this time, the second electric slider 202 can be controlled to drive the cleaning rod 203 and the sponge 204 to slide from the left side to the right side of the curtain 4, and the entire surface of the curtain 4 is wiped by the sponge 204, quickly erasing the handwriting on the curtain 4 without the teacher having to manually erase it, enabling the teacher to use the time for wiping the curtain 4 for teaching legal content to students, improving the teaching coherence and teaching speed.

[0042] However, since the curtain 4 is made of a soft material, when writing on the surface of the curtain 4 with a whiteboard pen, the curtain 4 will undergo a concave deformation and normal writing operations cannot be carried out. Therefore, to ensure that the teacher can write on the curtain 4, before unfolding the curtain 4, as Figure 5 、 Figure 6 and Figure 7 shown, control the two first electric sliders 5001 located on the same abutment plate 5 to move towards each other. The first electric slider 5001 drives the cross-link rod 6 to unfold, causing the cross-link rod 6 to drive the abutment plates 5 to move away from each other, thereby gradually pulling and straightening the folding plate 7 through the abutment plates 5. A whole back plate is formed by the cooperation of the abutment plates 5 and the folding plate 7. Thus, when writing on the surface of the curtain 4, the abutment plates 5 and the folding plate 7 can be used as supports to prevent the curtain 4 from undergoing concave deformation, so as to enable the teacher to perform normal writing operations on the curtain 4, allowing the teacher to draw legal relationship diagrams of characters and mind maps, etc. on the curtain 4, and thus effectively improving the coherence of legal teaching by combining real-time blackboard writing for explanation.

[0043] It should be noted that after using the present invention, control the electric rotating shaft 1001 to rotate to gradually wind up the curtain 4 in the housing 1 to prevent the curtain 4 from being contaminated with dust or damaged, resulting in affecting the projection clarity during subsequent use, and further affecting the clarity of the legal case pictures displayed. At the same time, as Figure 3 and Figure 8As shown, the electric rotating rod on the control connecting rod 2 drives the telescopic rod 2001 and the projector 3 to rotate downward, controls the telescopic rod 2001 to contract, and controls the electric rotating rod on the second electric slider 202 to drive the cleaning rod 203 to rotate upward until the cleaning rod 203 fits against the housing 1. Then, it controls the two first electric sliders 5001 on the same abutment plate 5 to move away from each other. The first electric slider 5001 drives the cross-link 6 to contract, and the cross-link 6 drives the abutment plates 5 to approach each other, thus effectively reducing the space occupied. Further, when the abutment plates 5 approach each other, since the abutment plates 5 stop pulling the folding plate 7, the folding plate 7 is likely to be folded in a messy state under the push of the abutment plates 5, blocking the approach of the abutment plates 5 to each other. Therefore, by providing a rotating block 101 and a winding rod 102, when the abutment plates 5 approach each other and stop pulling the folding plate 7, the torsion spring on the rotating block 101 drives the winding rod 102 to rotate and automatically wind the folding plate 7 gradually. And the torsion spring on the abutment plate 5 drives the rotating block 101 and the winding rod 102 to rotate forward, so that there is enough distance between the winding rod 102 and the abutment plate 5, enabling the folding plate 7 to be wound above it, thereby realizing the neat storage of the folding plate 7 and preventing the folding plate 7 from being located between the abutment plates 5 and affecting their approach to each other. It should be noted that when the abutment plates 5 move away from each other and pull the folding plate 7, the folding plate 7 first drives the rotating block 101 to rotate upward, compressing the torsion spring between the rotating block 101 and the abutment plate 5. Then, the folding plate 7 unwinds from the winding rod 102, and the winding rod 102 rotates, compressing the torsion spring between the winding rod 102 and the rotating block 101.

[0044] Since only the upper side of the curtain 4 is connected to the electric rotating shaft 1001, the stability of the curtain 4 is poor, and it is easy to shake under the influence of wind and touch, which affects the projection effect and even causes students to be unable to clearly see the legal case pictures projected. In particular, when wiping the surface of the curtain 4 with the sponge 204, the curtain 4 will fold and move under the extrusion and push of the sponge 204. To avoid this situation, a support steel bar 4001 is provided at the rear of the curtain 4. After the curtain 4 is unfolded, the electromagnet on the abutment plate 5 can be activated to magnetically fix the support steel bar 4001, fixing the curtain 4 and effectively preventing the curtain 4 from swinging during use.

[0045] Optionally, to reduce costs and power consumption simultaneously, the electromagnet inside the abutment plate 5 can be replaced with a magnet to magnetically fix the support steel bar 4001. However, this may cause the support steel bar 4001 on the lower side of the curtain 4 to be magnetically attracted by the magnet inside the abutment plate 5 on the upper side during the gradual unfolding of the curtain 4, resulting in the inability to unfold the curtain 4 normally. Therefore, a first slide rail 4002 is provided on the curtain 4, and the cleaning rod 203 slides on the first slide rail 4002 through the sliding block 4003. During the gradual unfolding of the curtain 4, the electric rotating rod on the second electric slider 202 can be controlled to drive the cleaning rod 203 to rotate downward synchronously, and at the same time, the second electric slider 202 is controlled to drive the upper end of the cleaning rod 203 to move adaptively to the right, so as to push the bottom of the curtain 4 downward through the cleaning rod 203 until the cleaning rod 203 rotates to a vertical state. At this time, all the support steel bars 4001 are magnetically attached to the corresponding abutment plates 5, thus avoiding the situation where the support steel bar 4001 on the lower side of the curtain 4 is magnetically fixed by the magnet inside the abutment plate 5 on the upper side, resulting in the inability to unfold the curtain 4 normally. Further, during the wiping operation of the curtain 4, the cleaning rod 203 slides on the first slide rail 4002 through the sliding block 4003, thereby ensuring the stability of the sliding of the cleaning rod 203. It should be noted that when an electromagnet is provided on the abutment plate 5, a first slide rail 4002 can also be provided on the curtain 4, and the cleaning rod 203 slides on the first slide rail 4002 through the sliding block 4003 to ensure the stability of the sliding of the cleaning rod 203.

[0046] Embodiment 2

[0047] On the basis of Embodiment 1, as Figures 1 - 5 shown, a liquid storage cavity storing cleaning liquid is provided inside the cleaning rod 203. A through hole communicating with the liquid storage cavity is opened on the side of the cleaning rod 203 in contact with the sponge 204, and an electric control valve is provided at the through hole.

[0048] After writing on the curtain 4 with a whiteboard pen, if it is not wiped for a long time, the handwriting may dry on the surface of the curtain 4, making it difficult to directly erase it with the sponge 204. To avoid affecting the subsequent display of legal case pictures and the drawing of role legal relationship diagrams and mind maps, etc., while driving the cleaning rod 203 and the sponge 204 to slide on the surface of the curtain 4 through the second electric slider 202, the electric control valve at the through hole of the cleaning rod 203 is opened, so that the cleaning liquid in the liquid storage cavity of the cleaning rod 203 flows from the through hole to the sponge 204 to wet the sponge 204, and then the sponge 204 is used to wipe the surface of the curtain 4, thereby effectively ensuring the wiping effect of the sponge 204 on the handwriting.

[0049] The technical principles of the embodiments of the present invention have been described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the embodiments of the present invention and cannot be construed in any way as a limitation on the protection scope of the embodiments of the present invention. Based on the explanations herein, those skilled in the art can readily conceive of other specific implementation manners of the embodiments of the present invention without creative efforts, and these manners will all fall within the protection scope of the embodiments of the present invention.

Claims

1. An intelligent teaching instrument for legal education, comprising a housing (1), a connecting rod (2), a projector (3) and a screen (4); the connecting rod (2) is fixedly connected to the housing (1); the projector (3) is connected to the connecting rod (2); the screen (4) is wound in the housing (1); characterized in that: It further includes a driving component, a cleaning rod (203), a sponge (204), a abutment plate (5), a cross link (6) and a folding plate (7); a whiteboard film is adhered to the surface of the curtain (4); a driving component is connected to the housing (1); the driving component is connected to the cleaning rod (203), the cleaning rod (203) is located in front of the curtain (4), and the driving component is used to drive the cleaning rod (203) to move left and right; a sponge (204) for cleaning the curtain (4) is fixedly connected to the rear side of the cleaning rod (203); a number of abutment plates (5) are connected to the lower side of the housing (1), the abutment plates (5) are located behind the curtain (4), the uppermost abutment plate (5) is fixedly connected to the housing (1), and adjacent abutment plates (5) are connected by a cross link (6), the abutment plate (5) is rotatably connected to the cross link (6) through a first electric slider (5001), the cross link (6) is arranged on the side of the abutment plate (5) away from the curtain (4), and the first electric slider (5001) is slidably connected to the abutment plate (5); an adjacent abutment plate (5) is fixedly connected with a folding plate (7) in common, and the folding plate (7) faces the curtain (4).

2. An intelligent teaching instrument for legal education according to claim 1, characterized in that: A number of horizontally arranged support steel bars (4001) are fixedly connected to the rear side of the curtain (4).

3. An intelligent teaching instrument for legal education according to claim 1, characterized in that: Each abutment plate (5) is embedded with an electromagnet.

4. An intelligent teaching instrument for legal education according to claim 3, characterized in that: A magnet can be arranged in the abutment plate (5) to replace the embedded electromagnet.

5. The intelligent teaching instrument for legal education according to claim 1, characterized in that: A first slide rail (4002) is fixedly connected to the bottom of the curtain (4); a sliding block (4003) is slidably connected to the first slide rail (4002), and the sliding block (4003) is rotatably connected to the other end of the cleaning rod (203).

6. The intelligent teaching instrument for legal education according to claim 1, characterized in that: The driving component is connected to the cleaning rod (203) through an electric rotating rod.

7. An intelligent teaching instrument for legal education according to claim 1, characterized in that: A telescopic rod (2001) is connected to the front side of the connecting rod (2) through an electric rotating rod; the telescopic end of the telescopic rod (2001) is damping rotatably connected to the projector (3).

8. An intelligent teaching instrument for legal education according to claim 1, characterized in that: A rubber layer is adhered to the side of each abutment plate (5) and the folding plate (7) close to the curtain (4).

9. An intelligent teaching instrument for legal education according to claim 1, characterized in that: It further includes a rotating block (101) and a winding rod (102); the folding plate (7) is fixedly connected to the lower side of the abutment plates (5) except the lowermost one; except for the uppermost abutment plate (5), a rotating block (101) is rotatably connected to the left and right sides of the other abutment plates (5) through torsion springs; two rotating blocks (101) located on the same abutment plate (5) are rotatably connected to a winding rod (102) through a torsion spring in common, and the winding rod (102) winds the folding plate (7).

10. An intelligent teaching instrument for legal education according to claim 1, characterized in that: A liquid storage cavity is arranged inside the cleaning rod (203), and a through port communicating with the liquid storage cavity is opened on the side of the cleaning rod (203) in contact with the sponge (204).

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