Folding ideological and political teaching display board

Abstract

The invention provides a folding ideological and political teaching display board, and relates to the technical field of teaching display boards. The method is used for solving the technical problems that content in an existing patent display area is fixed, data need to be pasted again when other content needs to be displayed, and replacement is troublesome. The folding ideological and political teaching display board comprises supporting frames, protective glass, connecting plates, a first rotating rod and the like, the two supporting frames are in bilateral symmetry, the protective glass is arranged between the two supporting frames, the two connecting plates are installed on the supporting frames, and the first rotating rod is arranged on the two connecting plates jointly in a rotating mode. By rotating the supporting frames on the two sides along the first rotating rods, the folding purpose is achieved, and the teaching display board is convenient to carry; the motor is started to drive the two second guide rods to rotate, so that the two belt pulley assemblies rotate between the first guide rods, the purpose of alternately displaying teaching materials is achieved, the materials do not need to be pasted again, and the teaching progress is prevented from being affected.

Description

Technical Field

[0001] The invention provides a foldable ideological and political teaching display board, and relates to the technical field of teaching display boards. Background Art

[0002] Ideological and political education refers to a comprehensive educational concept that forms a synergistic effect and takes "cultivating morality and educating people" as the fundamental task of education; exhibition boards refer to plate-like media used to publish and display information, including paper, new materials, metal materials, etc.

[0003] The patent with the patent authorization announcement number CN109686186A discloses a teaching poster display board with adjustable rotation, which includes a fixed plate, a plurality of wheels are arranged on the fixed plate, a locking assembly is arranged on one side of the fixed plate, an adjusting rod is arranged on the fixed plate, a driven wheel is arranged on the upper end of the adjusting rod, the driven wheel is connected to the driving wheel through a belt, the driving wheel is connected to the servo drive motor, the rotating shaft II of the driven wheel is nested and connected to the rotating bending shaft through a hollow circular hole, the crankshaft at the upper end of the rotating bending shaft is welded and connected to the pasting main board, one side of the pasting main board is connected to the pasting sub-board, a display light is arranged inside the pasting main board, a pasting board is arranged outside the display light, and the servo drive motor is operated by a control device to rotate the pasting main board. However, the patent still has shortcomings in actual use. The content of the display area of ​​the patent is fixed, and the materials need to be re-pasted when other content needs to be displayed, which is troublesome to replace.

[0004] Therefore, there is an urgent need to provide a foldable ideological and political teaching display board that can rotate the display content to solve the above problems. Summary of the invention

[0005] In order to overcome the shortcomings of the existing patents that the content of the display area is fixed, and when other content needs to be displayed, the materials need to be re-pasted, which is troublesome to replace, the present invention provides a foldable ideological and political teaching display board with rotated display content.

[0006] In order to achieve the above-mentioned purpose, the embodiment of the present invention provides the following technical solutions: a foldable ideological and political teaching display board, including a support frame, a protective glass, bolts, a connecting plate and a first rotating rod. There are two support frames that are symmetrical on the left and right. A protective glass is arranged between the two support frames. Bolts for fixing the protective glass are threadedly arranged on the two support frames. The two bolts penetrate the upper part of the protective glass. When folding the display board, the two bolts need to be unscrewed and the protective glass needs to be removed. Two connecting plates are installed on the support frame. The first rotating rod is rotatably arranged on the two connecting plates. The two support frames are rotated and folded by the first rotating rods on the two connecting plates. A replacement mechanism for replacing the display of teaching materials is also included.

[0007] In addition, it is particularly preferred that the replacement mechanism includes a pulley assembly, a motor, a first guide rod, a second guide rod and a clamping block, a motor is installed on one side of the support frame, and the output shaft of the motor is fixedly connected to the second guide rod through a coupling, and the second guide rod is driven by the motor to rotate, and another second guide rod is rotatably arranged on the other side of the support frame, and the two second guide rods are clamped by the clamping block so that the two second guide rods can rotate at the same time, and three first guide rods are installed on the two support frames, one of which is above the second guide rod, and the other two first guide rods are below the second guide rod, and the upper first guide rod and the second guide rod are symmetrical with the lower two first guide rods, and the second guide rod and the three first guide rods are jointly sleeved with a pulley assembly for fixing the teaching display content, and the pulley assembly is semi-encircled on the protruding plate of the support frame, and the pulley assembly is rotated by the second guide rod, thereby rotating the teaching content on the pulley assembly.

[0008] The cam is an elastic member formed between a first and a second guide rods, the second guide rods being arranged on the second guide rods and the second guide rods being arranged on the second guide rods for slidably connecting the two guide rods.

[0009] In addition, it is particularly preferred that the upper portion of the slider is a right triangle, and the contact portion between the first pressure plate and the slider is a corresponding inclined surface.

[0010] In addition, it is particularly preferred that it also includes a vibrating dust removal mechanism for shaking off dust on the protective glass, the vibrating dust removal mechanism includes a mounting plate, a connecting frame, a rotating wheel, a connecting rod, a T-block and a connecting block, a mounting plate is mounted on the support frame away from the motor side, the mounting plate is fixedly connected to the connecting frame on the side away from the connecting plate, a second guide rod is commonly penetrated by the mounting plate and the connecting frame, the second guide rod is rotatably connected to the mounting plate and the connecting frame, the second guide rod is fixedly connected to the rotating wheel at one end close to the connecting frame, the rotating wheel is driven to rotate by the second guide rod, a connecting block is rotatably provided at one end of the rotating wheel away from the second guide rod, a connecting rod is rotatably provided at one side of the connecting frame away from the mounting plate, a square frame is provided on the connecting rod, the connecting block is rotatably connected to the connecting rod in the square frame, when the rotating wheel rotates, the connecting block swings in the square frame of the connecting rod, the connecting rod performs a small reciprocating rotation, a T-block is fixedly connected to one end of the connecting rod close to the protective glass, the small reciprocating rotation of the connecting rod causes the T-block to collide with the protective glass, causing the protective glass to vibrate.

[0011] In addition, it is particularly preferred that the connection between the rotating wheel and the connecting block is an inclined cylindrical shape.

[0012] In addition, it is particularly preferred that it also includes a broadcasting mechanism for broadcasting teaching materials, the broadcasting mechanism includes a mounting frame, a broadcaster, a third guide rod, a third elastic member, a second pressure plate and a button, the mounting frame is mounted on the support frame away from the motor side, the broadcaster is embedded in the mounting frame, the broadcaster is provided with a button, the mounting frame is fixedly connected to the third guide rod, the second pressure plate is slidably provided on the third guide rod, the third elastic member is wound around the third guide rod for pushing the second pressure plate to slide upward and reset, and the second pressure plate is pressed down to press the button to turn on the broadcaster.

[0013] In addition, it is particularly preferred that a clamping mechanism for fixing teaching materials is also included, the clamping mechanism includes a first clamping plate, a fixed block and a second clamping plate, a plurality of fixed blocks are passed through the pulley assembly, a first clamping plate and a second clamping plate are slidably arranged between every two fixed blocks, a pulley assembly is arranged between the first clamping plate and the second clamping plate, and the teaching materials are fixed by clamping them between the second clamping plate and the pulley assembly.

[0014] Furthermore, it is particularly preferred that both the first clamping plate and the second clamping plate are made of rubber.

[0015] In addition, it is particularly preferred that it also includes a storage mechanism for storing teaching materials and disassembly and assembly tools, the storage mechanism includes a fixed frame, a sliding frame, a fourth elastic member, a fifth elastic member and a pressing block, a fixed frame is installed at the lower part of the two support frames, and sliding frames are slidably arranged in the two fixed frames. The sliding frames can be used to store teaching materials and tools for disassembling and repairing display panels, etc. The sliding frame slides left and right in the fixed frame, and two fourth elastic members are fixedly connected between the sliding frame and the fixed frame. The fourth elastic member is used to push the sliding frame to slide out of the fixed frame, and a pressing block is slidably arranged on the fixed frame. The pressing block is wound with a fifth elastic member, and the fifth elastic member is located on the outside of the fixed frame. The fifth elastic member is used to push the pressing block to slide upward, so that the pressing block is engaged with the sliding frame to limit the sliding frame.

[0016] Compared with the prior art, the teaching display board provided by the embodiment of the present invention has the following advantages: 1. By rotating the support frames on both sides along the first rotating rod, the purpose of folding is achieved, which is convenient for carrying the teaching display board; by starting the motor to drive the two second guides to rotate, the two pulley assemblies rotate between the first guide rods, so as to achieve the purpose of rotating and displaying teaching materials, without the need to re-paste the materials, to avoid affecting the teaching progress.

[0017] 2. Press the first pressure plate downward to push the slider to slide backward, so that the slider is free from the limit of the extension plate, and the first elastic member pushes the extension plate to slide upward, so that the extension plate extends upward, thereby achieving the purpose of extending the teaching display board.

[0018] 3. The second guide rod drives the rotating wheel to rotate, so that the connecting block swings back and forth in the square frame of the connecting rod, and the connecting rod rotates back and forth on the connecting frame. The connecting rod drives the T-block to swing slightly and knock on the protective glass, so that the protective glass vibrates, thereby achieving the purpose of shaking off the dust on the protective glass.

[0019] 4. Through the rotation of the rotating wheel, the protrusion on the rotating wheel contacts the second pressing plate, and the second pressing plate slides downward along the third guide rod and presses the button, thereby turning on the broadcaster and playing the teaching material content currently being displayed in rotation.

[0020] 5. By stretching the second clamping plate, placing the teaching materials between the second clamping plate and the pulley assembly, loosening the second clamping plate so that it clamps the teaching materials in the gap of the pulley assembly, the purpose of replacing the gluing teaching materials is achieved, making it more convenient to take and put the teaching materials.

[0021] 6. By pressing the pressing block downward to disengage the sliding frame from the limit, the sliding frame is slid outward of the fixed frame through the fourth elastic member. When the sliding frame needs to be retracted, the sliding frame is pushed into the fixed frame, and the pressing block is engaged with the sliding frame to limit the sliding frame, thereby achieving the effect of retracting and releasing the sliding frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the three-dimensional cross-sectional structure of the support frame, protective glass and connecting plate of the present invention.

[0024] Figure 3 It is a schematic diagram of a three-dimensional cross-sectional structure of the pulley assembly, the motor and the first guide rod of the present invention.

[0025] Figure 4 It is a schematic diagram of a three-dimensional cross-sectional structure of the slide rail, the extension plate and the second rotating rod of the present invention.

[0026] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0027] Figure 6 It is a schematic diagram of the three-dimensional cross-sectional structure of the mounting plate, the connecting frame and the rotating wheel of the present invention.

[0028] Figure 7 It is a schematic diagram of the three-dimensional cross-sectional structure of the mounting block, the shifting block and the rotating rod of the present invention.

[0029] Figure 8 It is a schematic diagram of the three-dimensional cross-sectional structure of the first clamping plate, the fixing block and the second clamping plate of the present invention.

[0030] Fig. 9 It is a three-dimensional cross-sectional structural schematic diagram of the fixed frame, the sliding frame and the fourth elastic member of the present invention.

[0031] Among them, the above-mentioned drawings include the following figure marks: 1, support frame, 2, protective glass, 3, bolt, 4, connecting plate, 5, first rotating rod, 601, pulley assembly, 602, motor, 603, first guide rod, 604, second guide rod, 605, block, 701, slide rail, 702, extension plate, 703, second rotating rod, 704, first elastic member, 705, slider, 706, first guide rod, 707, mounting block, 708, second guide rod, 709, second elastic member, 710, first pressure plate , 801, mounting plate, 802, connecting frame, 803, rotating wheel, 804, connecting rod, 805, T-block, 806, connecting block, 901, mounting frame, 902, broadcaster, 903, third guide rod, 904, third elastic member, 905, second pressure plate, 906, button, 1001, first clamping plate, 1002, fixed block, 1003, second clamping plate, 1101, fixed frame, 1102, sliding frame, 1103, fourth elastic member, 1104, fifth elastic member, 1105, pressing block. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention. Example 1

[0033] A foldable ideological and political teaching display board, see Figure 1 and Figure 2 As shown, it includes a support frame 1, a protective glass 2, bolts 3, a connecting plate 4 and a first rotating rod 5. There are two support frames 1 that are symmetrical on the left and right. The two support frames 1 are commonly connected with a protective glass 2, and the protective glass 2 is inverted L-shaped. Bolts 3 for fixing the protective glass 2 are threadedly arranged on the two support frames 1. The two bolts 3 penetrate the top of the protective glass 2. When folding the display board, the two bolts 3 need to be unscrewed and the protective glass 2 needs to be removed. Two connecting plates 4 with central symmetry are installed on the support frame 1 by welding. The two connecting plates 4 are rotatably arranged at the positions close to each other with a first rotating rod 5. The two support frames 1 are rotated and folded by the first rotating rods 5 on the two connecting plates 4. A replacement mechanism for replacing the display of teaching materials is also included.

[0034] See also Figure 3 As shown, the replacement mechanism includes a pulley assembly 601, a motor 602, a first guide rod 603, a second guide rod 604 and a clamping block 605. The motor 602 is installed in the middle of the support frame 1 on one side by bolt connection. The output shaft of the motor 602 is fixedly connected to the second guide rod 604 through a coupling. The second guide rod 604 is driven to rotate by the motor 602. Another second guide rod 604 is rotatably arranged on the support frame 1 on the other side. The two second guide rods 604 are clamped by a clamping block 605 so that the two second guide rods 604 can rotate at the same time. The sides of the two support frames 1 close to each other are both installed with three second guide rods by bolt connection. A guide rod 603, wherein a first guide rod 603 is above the second guide rod 604, and the other two first guide rods 603 are below the second guide rod 604, and the upper first guide rod 603 and the second guide rod 604 are symmetrically distributed with the two lower first guide rods 603, and the second guide rod 604 and the three first guide rods 603 are jointly sleeved with a pulley assembly 601 for fixing teaching display content, and the pulley assembly 601 is C-shaped and surrounds the support frame 1, so as to facilitate the rotation and replacement of teaching materials, and the pulley assembly 601 is rotated by the second guide rod 604, thereby rotating the teaching content on the pulley assembly 601.

[0035] When the teaching display board is to be transported, the bolts 3 are unscrewed and the protective glass 2 is removed, and then the support frames 1 on both sides are rotated and folded along the first rotating rod 5 to reduce the horizontal position of the teaching display board for easy transportation; when the teaching display board is to be used for teaching, the teaching materials are first fixed on the surfaces of the pulley assemblies 601 on both sides. When teaching, the second guide rod 604 is driven to rotate by starting the motor 602, and the second guide rod 604 on the other side is rotated at the same time through the connection of the clamping block 605, and then the two second guide rods 604 drive the two pulley assemblies 601 to rotate between the first guide rods 603, so that the displayed teaching materials are rotated. When the teaching display board needs to be folded, the clamping block 605 must be removed first to separate the two second guide rods 604. Example 2

[0036] Based on Example 1, see Figure 4 and Figure 5 As shown, an extension mechanism for expanding the display area is also included, the extension mechanism includes a slide rail 701, an extension plate 702, a second rotating rod 703, a first elastic member 704, a slider 705, a first guide rod 706, a mounting block 707, a second guide rod 708, a second elastic member 709 and a first pressing plate 710. The rear parts of the two support frames 1 are both installed with slide rails 701 by bolt connection, and the first guide rod 706 is fixedly connected to the two slide rails 701 by welding. The extension plates 702 are slidably arranged in the two slide rails 701, and the two extension plates 702 are symmetrically distributed. The second rotating rod 703 is rotatably arranged at the positions where the two extension plates 702 are close to each other, and the extension plates 702 are slidably connected to the first guide rod 706. The extension plates 702 slide up and down along the first guide rod 706 in the slide rail 701, and a support for pushing the extension plates 702 to move is provided around the first guide rod 706. The first elastic member 704 slides upward, and the tops of the two support frames 1 are both installed with mounting blocks 707 by bolt connection. A first pressing plate 710 is slidably arranged on the mounting block 707, and the first pressing plate 710 slides up and down in the mounting block 707. The rear part of the mounting block 707 is fixedly connected with two second guide rods 708 by welding. A slider 705 for limiting the extension plate 702 is slidably arranged on the two second guide rods 708. The upper part of the slider 705 is a right triangle, and the contact part between the first pressing plate 710 and the slider 705 is a corresponding inclined surface, so that the first pressing plate 710 can smoothly push the slider 705. By pressing down the first pressing plate 710, the slider 705 is pushed to slide along the second guide rod 708 to the side away from the mounting block 707. The two second guide rods 708 are both provided with a second elastic member 709 for pulling the slider 705 to slide and reset to the side close to the mounting block 707.

[0037] Initially, the slider 705 is limited to the extension plate 702, and the first elastic member 704 is compressed. When the extension plate needs to be extended, the first pressing plate 710 is pressed downward, and the first pressing plate 710 pushes the slider 705 to slide backward along the two second guide rods 708. At this time, the two second elastic members 709 are stretched. After the slider 705 slides backward, the slider 705 is separated from the limit of the extension plate 702, and the first elastic member 704 loses the force and returns to its original state, thereby pushing the extension plate 702 to slide upward along the first guide rod 706 in the slide rail 701. The first pressing plate 710 is then released to push the extension plate 702 upwards to extend the extension plate 702. When the extension plate 702 is to be retracted, the extension plate 702 is pressed downwards to the bottom of the slide rail 701. At this time, the first elastic member is compressed again, the slider 705 loses its resistance, and the second elastic member 709 loses its stretching force and returns to its original state, thereby driving the slider 705 to slide forward along the second guide rod 708. The slider 705 contacts the first pressing plate 710 and pushes it to slide upwards and return to its original position along the mounting block 707. At this time, the slider 705 limits the extension plate 702 again.

[0038] See also Figure 6 As shown, it also includes a vibration dust removal mechanism for shaking off dust on the protective glass 2, and the vibration dust removal mechanism includes a mounting plate 801, a connecting frame 802, a rotating wheel 803, a connecting rod 804, a T-block 805 and a connecting block 806. The mounting plate 801 is installed on the middle part of the rear side of the support frame 1 away from the motor 602 by welding, and the side of the mounting plate 801 away from the connecting plate 4 is fixedly connected to the connecting frame 802 by bolt connection. The mounting plate 801 and the connecting frame 802 are jointly penetrated by a second guide rod 604, and the second guide rod 604 is rotatably connected to the mounting plate 801 and the connecting frame 802. The end of the second guide rod 604 close to the connecting frame 802 is fixedly connected to the rotating wheel 803 by welding, and the rotating wheel 803 is driven to rotate by the second guide rod 604. 03 is rotatably provided with a connecting block 806 at one end away from the second guide rod 604, and the connection between the rotating wheel 803 and the connecting block 806 is an inclined cylindrical shape, so that the connecting block 806 can swing when the rotating wheel 803 rotates, and a connecting rod 804 is rotatably provided on the side of the connecting frame 802 away from the mounting plate 801, and a square frame is provided on the connecting rod 804, and the connecting block 806 is rotatably connected to the connecting rod 804 in the square frame, and when the rotating wheel 803 rotates, the connecting block 806 swings in the square frame of the connecting rod 804, and the connecting rod 804 performs a small reciprocating rotation, and the end of the connecting rod 804 close to the protective glass 2 is fixedly connected with a T-block 805 by welding, and the small reciprocating rotation of the connecting rod 804 causes the T-block 805 to collide with the protective glass 2, so that the protective glass 2 vibrates.

[0039] When there is a lot of dust on the protective glass 2, the two second guide rods 604 are rotated through the power of the motor 602 and the connection of the clamping block 605. The second guide rod 604 away from the motor 602 drives the rotating wheel 803 to rotate. The rotation of the rotating wheel 803 causes the connecting block 806 to swing back and forth in the square frame of the connecting rod 804. The connecting rod 804 rotates slightly back and forth on the connecting frame 802. The connecting rod 804 drives the T-block 805 to swing slightly, knocking the protective glass 2, causing the protective glass 2 to vibrate and shake off the dust on the protective glass 2.

[0040] See also Figure 7 As shown, it also includes a broadcasting mechanism for broadcasting teaching materials, the broadcasting mechanism includes a mounting frame 901, a broadcaster 902, a third guide rod 903, a third elastic member 904, a second pressure plate 905 and a button 906. The mounting frame 901 is installed on the middle section of the side of the support frame 1 away from the motor 602 by bolt connection. The broadcaster 902 is embedded in the mounting frame 901. The button 906 is arranged on the top of the broadcaster 902. The third guide rod 903 is fixedly connected to the top of the mounting frame 901 by welding. The second pressure plate 905 is slidably arranged on the third guide rod 903. The third elastic member 904 is wound around the third guide rod 903 to push the second pressure plate 905 to slide upward and reset.

[0041] When the wheel 803 rotates, the protrusion on the wheel 803 contacts the second pressure plate 905, and the second pressure plate 905 slides downward along the third guide rod 903. At this time, the third elastic member 904 is compressed and deformed. When the second pressure plate 905 slides downward, the button 906 is pressed to turn on the loudspeaker 902 to play the teaching material content currently being displayed in rotation. When the protrusion on the wheel 803 disengages from the second pressure plate 905, the third elastic member 904 loses the force and returns to its original state, thereby pushing the second pressure plate 905 to slide upward and reset.

[0042] See also Figure 8 As shown, it also includes a clamping mechanism for fixing teaching materials, the clamping mechanism includes a first clamping plate 1001, a fixed block 1002 and a second clamping plate 1003, a plurality of fixed blocks 1002 are inserted on the pulley assembly 601, and a first clamping plate 1001 and a second clamping plate 1003 are slidably arranged between every two fixed blocks 1002, the pulley assembly 601 is between the first clamping plate 1001 and the second clamping plate 1003, the fixed block 1002 fixes the first clamping plate 1001 and the second clamping plate 1003 on the pulley assembly 601, the first clamping plate 1001 and the second clamping plate 1003 are both made of rubber, so that the pulley assembly 601 can be deformed when it rotates, so that the teaching materials are kept fixed, and the teaching materials are fixed by clamping the teaching materials between the second clamping plate 1003 and the pulley assembly 601.

[0043] When the teaching materials are to be fixed on the pulley assembly 601, the second clamping plate 1003 is stretched, and then the teaching materials are placed between the second clamping plate 1003 and the pulley assembly 601, and then the second clamping plate 1003 is released. The second clamping plate 1003 clamps the teaching materials in the gap of the pulley assembly 601. When the pulley assembly 601 rotates, the first clamping plate 1001 and the second clamping plate 1003 can bend and deform along with the rotation.

[0044] See also Fig. 9 As shown, a storage mechanism for storing teaching materials and disassembly and assembly tools is also included, the storage mechanism includes a fixed frame 1101, a sliding frame 1102, a fourth elastic member 1103, a fifth elastic member 1104 and a pressing block 1105, the lower part of the two support frames 1 is installed with a left-right symmetrical fixed frame 1101 by bolt connection, and the two fixed frames 1101 are both slidably provided with a sliding frame 1102, and the sliding frame 1102 can be used to store teaching materials and tools for disassembling and repairing display panels, etc. The sliding frame 1102 slides left and right in the fixed frame 1101, and the inner side of the sliding frame 1102 is connected to the side of the fixed frame 1101 Two fourth elastic members 1103 are fixedly connected between the parts by welding, and the fourth elastic member 1103 is used to push the sliding frame 1102 to slide out of the fixed frame 1101. A pressing block 1105 is slidingly arranged on the top of the fixed frame 1101, and the pressing block 1105 is close to one side of the fourth elastic member 1103. A fifth elastic member 1104 is wound around the pressing block 1105, and the fifth elastic member 1104 is located on the outside of the fixed frame 1101. The fifth elastic member 1104 is used to push the pressing block 1105 to slide upwards, so that the pressing block 1105 is engaged with the sliding frame 1102, so as to limit the sliding frame 1102.

[0045] When the sliding frame 1102 is to be pulled out, the pressing block 1105 is pressed downward. At this time, the fifth elastic member 1104 is compressed and deformed, and the pressing block 1105 is separated from the limit of the sliding frame 1102. The sliding frame 1102 is slid out to the outside of the fixed frame 1101 through the fourth elastic member 1103. Then the pressing block 1105 is released, and the fifth elastic member 1104 loses the force and returns to its original state, thereby pushing the pressing block 1105 to slide upward and reset. When the sliding frame 1102 is to be retracted, the sliding frame 1102 is pushed into the fixed frame 1101. At this time, the two fourth elastic members 1103 are compressed and deformed. Then, the pressing block 1105 is pressed downward. The pressing block 1105 is reset upward through the fifth elastic member 1104, and the pressing block 1105 is engaged with the sliding frame 1102 to limit the sliding frame 1102.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A foldable ideological and political teaching display board, comprising a support frame (1), a protective glass (2), a bolt (3), a connecting plate (4) and a first rotating rod (5), wherein the support frames (1) are two symmetrical support frames, a protective glass (2) is arranged between the two support frames (1), bolts (3) for fixing the protective glass (2) are arranged in a threaded manner on the two support frames (1), and the two bolts (3) penetrate the protective glass (2), two connecting plates (4) are installed on the support frame (1), and a first rotating rod (5) is arranged on the two connecting plates (4) in a rotatable manner together, and the two support frames (1) are rotated and folded by the first rotating rods (5) on the two connecting plates (4), wherein the two support frames (1) are rotated and folded by the first rotating rods (5) on the two connecting plates (4), and the invention is characterized in that: It also includes a replacement mechanism for replacing the displayed teaching materials.

2. A foldable ideological and political teaching display board as claimed in claim 1, characterized in that: The replacement mechanism comprises a pulley assembly (601), a motor (602), a first guide rod (603), a second guide rod (604) and a clamping block (605). A motor (602) is mounted on a support frame (1) on one side. The output shaft of the motor (602) is fixedly connected to the second guide rod (604) via a coupling. The motor (602) drives the second guide rod (604) to rotate. Another second guide rod (604) is rotatably arranged on the support frame (1) on the other side. The two second guide rods (604) are clamped together via a clamping block (605). Three first guide rods (603) are mounted on both support frames (1). The second guide rod (604) and the three first guide rods (603) are jointly sleeved with a pulley assembly (601) for fixing teaching display content. The pulley assembly (601) is semi-circular on a protruding plate of the support frame (1).

3. A foldable ideological and political teaching display board as claimed in claim 1, characterized in that: The device also includes an extension mechanism for expanding the display area, the extension mechanism including a slide rail (701), an extension plate (702), a second rotating rod (703), a first elastic member (704), a slider (705), a first guide rod (706), a mounting block (707), a second guide rod (708), a second elastic member (709) and a first pressing plate (710), the two support frames (1) are both installed with a slide rail (701), the two slide rails (701) are both fixedly connected with the first guide rod (706), the two slide rails (701) are both slidably provided with an extension plate (702), the two extension plates (702) are rotatably provided with a second rotating rod (703) between the two extension plates (702), the extension plate (702) is slidably connected to the first guide rod (706), the extension plate (702) is moved along the first guide rod (706) in the slide rail (701), and the extension plate (702) is moved along the first guide rod (706) in the slide rail (701). ) slides up and down, a first elastic member (704) for pushing the extension plate (702) to slide upward is wound around the first guide rod (706), a mounting block (707) is installed on each of the two support frames (1), a first pressing plate (710) is slidably arranged on the mounting block (707), the first pressing plate (710) slides up and down in the mounting block (707), two second guide rods (708) are fixedly connected to the mounting block (707), a slider (705) is slidably arranged on the two second guide rods (708), the first pressing plate (710) is pressed downward to push the slider (705) to slide along the second guide rod (708) to a side away from the mounting block (707), and a second elastic member (709) for pulling the slider (705) to slide and reset to a side close to the mounting block (707) is wound around the two second guide rods (708).

4. A foldable ideological and political teaching display board as claimed in claim 3, characterized in that: The upper portion of the slider (705) is a right triangle, and the contact portion between the first pressing plate (710) and the slider (705) is a corresponding inclined surface.

5. The foldable ideological and political teaching display board as claimed in claim 1 is characterized in that: The invention also comprises a vibration dust removal mechanism for shaking off dust on the protective glass (2), the vibration dust removal mechanism comprising a mounting plate (801), a connecting frame (802), a rotating wheel (803), a connecting rod (804), a T-shaped block (805) and a connecting block (806), wherein a mounting plate (801) is mounted on the support frame (1) at a side away from the motor (602), a connecting frame (802) is fixedly connected to a side of the mounting plate (801) away from the connecting plate (4), a second guide rod (604) is provided on both the mounting plate (801) and the connecting frame (802), the second guide rod (604) is rotatably connected to the mounting plate (801) and the connecting frame (802), and a rotating wheel (803) is fixedly connected to one end of the second guide rod (604) close to the connecting frame (802). A connecting block (806) is rotatably provided at one end of the rotating wheel (803) away from the second guide rod (604), a connecting rod (804) is rotatably provided at one side of the connecting frame (802) away from the mounting plate (801), a square frame is provided on the connecting rod (804), the connecting block (806) is rotatably connected to the connecting rod (804) in the square frame, when the rotating wheel (803) rotates, the connecting block (806) swings in the square frame of the connecting rod (804), the connecting rod (804) performs a small reciprocating rotation, a T-shaped block (805) is fixedly connected to one end of the connecting rod (804) close to the protective glass (2), the small reciprocating rotation of the connecting rod (804) causes the T-shaped block (805) to collide with the protective glass (2), and the protective glass (2) vibrates.

6. A foldable ideological and political teaching display board as claimed in claim 5, characterized in that: The connection between the rotating wheel (803) and the connecting block (806) is in an inclined cylindrical shape.

7. The foldable ideological and political teaching display board as claimed in claim 1 is characterized in that: The invention also comprises a broadcasting mechanism for broadcasting teaching material content, the broadcasting mechanism comprising a mounting frame (901), a broadcaster (902), a third guide rod (903), a third elastic member (904), a second pressing plate (905) and a button (906); the mounting frame (901) is mounted on a support frame (1) at a side away from the motor (602); the broadcaster (902) is embedded in the mounting frame (901); the broadcaster (902) is provided with a button (906); the mounting frame (901) is fixedly connected to the third guide rod (903); the second pressing plate (905) is slidably provided on the third guide rod (903); and the third elastic member (904) is wound around the third guide rod (903) for pushing the second pressing plate (905) to slide upward and reset.

8. The foldable ideological and political teaching display board as claimed in claim 1 is characterized in that: It also includes a clamping mechanism for fixing teaching materials, the clamping mechanism includes a first clamping plate (1001), a fixing block (1002) and a second clamping plate (1003), a plurality of fixing blocks (1002) are provided on the pulley assembly (601), a first clamping plate (1001) and a second clamping plate (1003) are slidably arranged between every two fixing blocks (1002), and the pulley assembly (601) is located between the first clamping plate (1001) and the second clamping plate (1003).

9. A foldable ideological and political teaching display board as claimed in claim 8, characterized in that: The first clamping plate (1001) and the second clamping plate (1003) are both made of rubber.

10. The foldable ideological and political teaching display board according to claim 1, characterized in that: The device also includes a storage mechanism for storing teaching materials and disassembly and assembly tools, the storage mechanism including a fixed frame (1101), a sliding frame (1102), a fourth elastic member (1103), a fifth elastic member (1104) and a pressing block (1105), the fixed frames (1101) being installed at the lower part of the two support frames (1), the sliding frames (1102) being slidably arranged in the two fixed frames (1101), the sliding frames (1102) sliding left and right in the fixed frames (1101), and two fourth elastic members (1103) being fixedly connected between the sliding frames (1102) and the fixed frames (1101). The fourth elastic member (1103) is used to push the sliding frame (1102) to slide out of the fixed frame (1101); a pressing block (1105) is slidably arranged on the fixed frame (1101); a fifth elastic member (1104) is wound around the pressing block (1105); the fifth elastic member (1104) is located outside the fixed frame (1101); the fifth elastic member (1104) is used to push the pressing block (1105) to slide upwards, so that the pressing block (1105) is engaged with the sliding frame (1102), thereby limiting the sliding frame (1102).

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