Digital media design teaching display device and use method thereof

Abstract

The invention discloses a digital media design teaching display device and a use method thereof.The digital media design teaching display device comprises a deflection assembly, an unfolding assembly and a non-return assembly which are arranged on a wall, the top end of the wall is fixedly connected with a first fixing plate, and the position, close to the top end, of the wall is fixedly connected with a second fixing plate; the two sides of the bottom end of the wall body are fixedly connected with fixing bases, a platform is placed on one side of the wall body, and a teaching host is arranged at the top end of the platform. By arranging the deflection assembly, the display angle of the device is freely adjusted according to the external illumination angle, and then the situation that the viewing quality is reduced due to reflection of the display board is avoided; by arranging the unfolding assembly, automatic unfolding and contraction of the device are achieved, and meanwhile the problem that teaching content is blocked due to the fact that a teacher stands is solved; by arranging the non-return assembly, automatic positioning of the writing board is achieved; and when the writing board is contracted, the writing board is wiped and cleaned synchronously so as to remove dust adhered to the writing board.

Description

Technical Field

[0001] The present invention relates to the technical field of teaching display, and in particular to a digital media design teaching display device and a use method thereof. Background Art

[0002] Digital media design involves many aspects such as visual design, animation, interactive media, user experience design, etc. In the teaching process of digital media design, image presentation devices and multi-angle display devices are needed to display digital media design works, so that students can observe and understand the design from multiple angles. At the same time, it is necessary to combine writing boards and display screens to ensure that teachers can provide auxiliary guidance while playing teaching content.

[0003] After searching, the Chinese patent with publication number CN118571105B includes a teaching display board, a storage structure is arranged at the bottom of the teaching display board, two extension structures are arranged on the rear side of the teaching display board, a folding locking structure is arranged between the two extension structures, the bottom end of the folding locking structure is slidably connected with a supporting square column, the bottom end of the supporting square column is provided with a supporting end, the storage structure includes a slide plate extension bar, the slide plate extension bar is fixedly connected to the rear side of the bottom end of the teaching display board, the inner side of the slide plate extension bar is slidably connected with a vertical slide plate, the top of the vertical slide plate is fixedly connected with a support plate, and the bottom end of the vertical slide plate is fixedly connected with a storage slot. The above patent uses structural locking to facilitate the rapid extension and storage of the extension board so that more teaching content can be displayed.

[0004] However, the above patent does not consider the problem of blocking the teaching content when the teacher writes on the display board, resulting in some students being unable to see the teaching content when writing. At this time, if the teacher adjusts his position to reduce the blockage, it will lead to a waste of teaching time and affect the teaching progress; on the other hand, the above patent does not consider the reflection problem of the display board. When the external light source directly hits the display board and the reflected light falls on the viewing area, it will cause the display board to reflect and affect the viewing effect, thereby causing a decrease in teaching effect; at the same time, the expansion and contraction process in the above patent requires manual control, and the device lacks the function of automatic opening and closing, resulting in a low degree of automation. Summary of the invention

[0005] The purpose of the present invention is to provide a digital media design teaching display device and a method of using the same, which has the advantages of automatic unfolding and angle adjustment and solves the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a digital media design teaching and display device, comprising a deflection assembly, an expansion assembly and a non-return assembly arranged on a wall, a fixing plate 1 is fixedly connected to the top of the wall, a fixing plate 2 is fixedly connected to the position of the wall near the top, both sides of the bottom of the wall are fixedly connected to fixing seats, a podium is placed on one side of the wall, and a teaching host is arranged on the top of the podium;

[0007] The deflection assembly includes a display board for displaying teaching content, and the deflection assembly is arranged between the first fixed plate and the second fixed plate and is connected to the first fixed plate in a limited rotation manner;

[0008] The deployment assembly includes a transmission mechanism for realizing motion transmission and a telescopic mechanism for controlling the degree of deployment, the telescopic mechanism is arranged inside the deflection assembly and is fixedly connected to the deflection assembly, and the transmission mechanism is arranged at the top of the telescopic mechanism and is transmission-connected to the deflection assembly;

[0009] The non-return assembly includes a knob that is manually controlled by a teacher to achieve deployment positioning. The non-return assembly is arranged at the bottom of the deployment assembly and is transmission-connected to the deployment assembly.

[0010] Preferably, the deflection assembly also includes a motor as a power source for the device, the axis of the motor is penetrated by and fixedly connected to a driving shaft, the top end of the driving shaft is fixedly connected to a ratchet wheel, the outer contour of the ratchet wheel is unidirectionally connected to a transmission wheel, the top end of the transmission wheel is fixedly connected to a reciprocating screw rod, and the top end of the reciprocating screw rod is penetrated and connected to a fixed plate for limited rotation, a threaded seat is screwed on the outer contour of the reciprocating screw rod, the side of the threaded seat away from the wall is rotatably connected to a connecting rod via a pin, the other end of the connecting rod is rotatably connected to the display board via a pin, a brush is provided on the side of the bottom end of the display board close to the wall, the bottom end of the display board is penetrated by and rotatably connected to a deflection shaft, and both ends of the deflection shaft are penetrated by and rotatably connected to positioning seats.

[0011] Preferably, the transmission mechanism includes a ratchet second that is penetrated and fixedly connected to the bottom end of the driving shaft, the outer contour of the ratchet second is unidirectionally connected to a transmission wheel second, the outer contour of the transmission wheel second is meshed and transmission connected with a chain, and the transmission wheel second is located in the middle section inside the chain, the inner contours of both ends of the chain are meshed and transmission connected with a transmission wheel three, the axis centers of the two transmission wheels three are penetrated and fixedly connected with a transmission shaft, and the transmission shaft further penetrates and is limitedly rotatably connected with the fixed plate one and the fixed plate two, the outer contours of the bottom ends of the two transmission shafts are screwed with a lifting seat, the four corners of the two lifting seats are penetrated and slidably connected with a positioning shaft, and the top end of the positioning shaft is fixedly connected to the lower surface of the fixed plate two, one side of the lifting seat is fixedly connected to a positioning plate one, the bottom end of the positioning plate one is fixedly connected to a return spring, and the bottom end of the return spring is fixedly connected to the positioning plate two.

[0012] Preferably, the ratchet wheel 1 and the ratchet wheel 2 are arranged with the same specifications and the ratchet teeth are arranged in opposite directions, the ratchet teeth of the ratchet wheel 2 are arranged in counterclockwise direction, and the motor is equipped with a remote controller for controlling the starting and rotation direction of the motor.

[0013] Preferably, the telescopic mechanism includes two guide rods fixedly connected to a fixed seat, the upper and lower ends of the opposite surfaces of the guide rods are fixedly connected with positioning pins, the outer contours of the two guide rods are commonly penetrated by and slidably connected with the same lifting rod, the top of the lifting rod is fixedly connected with a writing board located on the rear side of the display board, the center of the bottom end of the lifting rod is fixedly connected with a guide rail frame, the outer contour of the guide rail frame is slidably connected with a sliding rod, the middle section of the sliding rod is provided with a S-shaped groove, both ends of the sliding rod are provided with guide grooves, compression springs are fixedly connected in the guide grooves at both ends of the sliding rod, the other end of the compression spring is fixedly connected with a latch and the other end of the latch extends out of the interior of the sliding rod, triangular teeth are fixedly connected on both sides of the latch away from one end of the compression spring, and the directions of the two triangular teeth on the same side are set in opposite directions to each other and are consistent with the specifications of the positioning pin.

[0014] Preferably, one side of the knob is fixedly connected to a connecting shaft 1, which passes through and is connected to the guide rail frame for limited rotation. The other end of the connecting shaft 1 is fixedly connected to a bevel gear 1 located inside the guide rail frame. The outer contour of the bevel gear 1 is meshed and transmission-connected with a bevel gear 2 horizontally placed inside the guide rail frame. The axis of the bevel gear 2 is penetrated and fixedly connected to a connecting shaft 2. The top end of the connecting shaft 2 passes through and is connected to the lifting rod for limited rotation. The bottom end of the connecting shaft 2 is fixedly connected to an eccentric wheel. The bottom end of the eccentric wheel is fixedly connected to a connecting shaft 3, which is limitedly slidably connected to the I-shaped groove of the sliding rod.

[0015] Preferably, receiver one and receiver two are respectively provided inside the display board and the writing board, and both the display board and the writing board are connected to the teaching host signal through wireless signals, receiver three is provided inside the podium, a pressure sensor is provided inside the triangular gear and the pressure sensor is connected to the motor signal, the outer contours of the top ends of the two guide rods are respectively fixedly connected to the positioning seats at the corresponding positions, and the outer contours of the two ends of the lifting rod are respectively fixedly connected to the positioning plate two at the corresponding positions.

[0016] Preferably, a digital media design teaching method comprises the following steps:

[0017] S1. Manual unlocking: The device is initially in a retracted state. When it needs to be unfolded to complete a teaching demonstration, the teacher holds and turns the knob 180 degrees. At this time, the check assembly works and unlocks the unfolding assembly. The unfolding assembly further works to realize the automatic unfolding operation of the device.

[0018] S2. Automatic opening and closing: After the non-return component is unlocked, the unfolding component automatically completes the pull-down and unfolding operation of the writing board. At this time, the teacher can write on the surface of the writing board to assist in teaching. At the same time, when the writing board is unfolded to the maximum extent, the non-return component locks the unfolding component again. At this time, the teacher turns the knob 180 degrees again to achieve automatic retraction of the unfolding component.

[0019] S3. Angle adjustment: When the external light source causes reflection on the surface of the display board, the teacher controls the motor to rotate counterclockwise through the remote control. At this time, the deflection assembly works synchronously and drives the display board to rotate. By changing the incident angle of light on the surface of the display board, the reflected light is prevented from falling into the viewing area, thereby improving the display effect.

[0020] S4. Synchronous projection: During the teaching process, the teaching host transmits the teaching content to the display board and the writing board synchronously. At the same time, the teacher's writing content on the writing board is transmitted from the writing board to the teaching host and then synchronously projected on the display board.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention provides a deflection assembly to freely adjust the display angle of the device according to the external light angle, thereby avoiding reflection of the display board and causing a decrease in viewing quality.

[0023] 2. The present invention realizes automatic expansion and contraction of the device by setting an expansion component, effectively improving the degree of automation of the device, while eliminating the problem of blocking the teaching content due to the teacher's standing position.

[0024] 3. The present invention realizes automatic positioning of the writing board by setting a check assembly, and the writing board and the display board are projected synchronously, further ensuring the teaching quality; and when the writing board is retracted, the writing board is wiped and cleaned synchronously to remove dust adhering to the writing board. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the position relationship of the teaching host of the present invention;

[0027] Figure 3 It is a schematic diagram of the position relationship of the deflection assembly of the present invention;

[0028] Figure 4 It is an exploded view of the deflection assembly structure of the present invention;

[0029] Figure 5 This is a schematic diagram of the position relationship of the components of the present invention;

[0030] Figure 6 The component structure diagram of the present invention is expanded;

[0031] Figure 7 It is a cross-sectional view of the check assembly of the present invention;

[0032] Figure 8 An exploded view of the internal structure of the non-return assembly of the present invention;

[0033] Fig. 9 It is the overall workflow diagram of the present invention.

[0034] In the figure: 1, wall; 11, fixing plate 1; 12, fixing plate 2; 13, fixing seat; 14, podium; 15, teaching host; 2, motor; 21, driving shaft; 22, ratchet 1; 23, transmission wheel 1; 24, reciprocating screw rod 1; 25, threaded seat; 26, connecting rod; 27, display board; 28, deflection shaft; 29, positioning seat; 3, ratchet 2; 31, transmission wheel 2; 32, chain; 33, transmission wheel 3; 34, transmission shaft; 3 5. Positioning shaft; 36. Lifting seat; 37. Positioning plate one; 38. Reset spring; 39. Positioning plate two; 4. Lifting rod; 41. Guide rod; 42. Positioning pin; 43. Writing board; 44. Guide rail frame; 45. Sliding rod; 46. Compression spring; 47. Latch; 48. Triangular gear; 5. Knob; 51. Connecting shaft one; 52. Bevel gear one; 53. Bevel gear two; 54. Connecting shaft two; 55. Eccentric wheel; 56. Connecting shaft three. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] See also Figures 1 to 9 The present invention provides a technical solution: a digital media design teaching display device, comprising a deflection component, an expansion component and a non-return component arranged on a wall 1, a fixing plate 1 11 is fixedly connected to the top of the wall 1, a fixing plate 2 12 is fixedly connected to the position near the top of the wall 1, a fixing seat 13 is fixedly connected to both sides of the bottom of the wall 1, a podium 14 is placed on one side of the wall 1, and a teaching host 15 is arranged on the top of the podium 14;

[0037] The deflection assembly includes a display board 27 for displaying teaching content. The deflection assembly is disposed between the fixed plate 11 and the fixed plate 2 12 and is connected to the fixed plate 11 for limited rotation.

[0038] The deployment assembly includes a transmission mechanism for realizing motion transmission and a telescopic mechanism for controlling the degree of deployment, the telescopic mechanism is arranged inside the deflection assembly and is fixedly connected to the deflection assembly, and the transmission mechanism is arranged at the top of the telescopic mechanism and is transmission-connected to the deflection assembly;

[0039] The non-return assembly includes a knob 5 that is manually controlled by a teacher to achieve deployment positioning. The non-return assembly is arranged at the bottom of the deployment assembly and is transmission-connected to the deployment assembly.

[0040] In the device, the non-return component controls the locking state of the unfolding component, and the unfolding component is unlocked by controlling the non-return component. When the unfolding component is unlocked, it realizes automatic opening and closing operation, thereby providing writing assistance to the teacher.

[0041] On the other hand, the tilt angle of the display board 27 is controlled by the deflection component, thereby changing the incident and reflection angles of the external light on the display board 27, and ensuring the display effect of the device on the teaching content by preventing the reflected light from falling into the viewing area.

[0042] Among them, the fixed plate 1 11, the fixed plate 2 12 and the fixed seat 13 provide limits for the deflection assembly and the transmission mechanism, thereby ensuring the normal operation of the device. The podium 14 provides a space for teachers to place courseware. The teaching host 15 is used to project the teaching content onto the display board 27 and the writing board 43, and at the same time receive feedback information from the writing board 43 and synchronously transmit it to the display board 27, so as to synchronously display the writing content of the teacher on the writing board 43 on the display board 27.

[0043] Embodiment 2:

[0044] See also Figure 3-Figure 6 This embodiment further illustrates the following on the basis of the first embodiment:

[0045] The deflection assembly also includes a motor 2 as a power source for the device, a driving shaft 21 is penetrated and fixedly connected at the axis center of the motor 2, a ratchet 22 is fixedly connected to the top end of the driving shaft 21, a transmission wheel 23 is unidirectionally connected to the outer contour of the ratchet 22, a reciprocating screw 24 is fixedly connected to the top end of the transmission wheel 23, and the top end of the reciprocating screw 24 is penetrated and connected to the fixed plate 11 for limited rotation, a threaded seat 25 is screwed on the outer contour of the reciprocating screw 24, a connecting rod 26 is rotatably connected to the side of the threaded seat 25 away from the wall 1 through a pin, the other end of the connecting rod 26 is rotatably connected to a display board 27 through a pin, a brush is provided on the side of the bottom end of the display board 27 close to the wall 1, a deflection shaft 28 is penetrated and rotatably connected to the bottom end of the display board 27, and positioning seats 29 are penetrated and rotatably connected to both ends of the deflection shaft 28.

[0046] The transmission mechanism includes a ratchet wheel 23 that is penetrated and fixedly connected to the bottom end of the driving shaft 21, a transmission wheel 231 is unidirectionally connected to the outer contour of the ratchet wheel 23, a chain 32 is meshed and transmission-connected to the outer contour of the transmission wheel 231, and the transmission wheel 231 is located in the middle section of the chain 32, and the inner contours of both ends of the chain 32 are meshed and transmission-connected to the transmission wheel 33, and the axis centers of the two transmission wheels 33 are penetrated and fixedly connected with a transmission shaft 34, and the transmission shaft 34 is further penetrated and The two transmission shafts 34 are connected to the fixed plate 11 and the fixed plate 2 12 for limited rotation. The outer contours of the bottom ends of the two transmission shafts 34 are screwed with lifting seats 36. The four corners of the two lifting seats 36 are penetrated and slidably connected with positioning shafts 35, and the top ends of the positioning shafts 35 are fixedly connected to the lower surface of the fixed plate 2 12. One side of the lifting seat 36 is fixedly connected to a positioning plate 1 37, and the bottom end of the positioning plate 1 37 is fixedly connected to a return spring 38, and the bottom end of the return spring 38 is fixedly connected to a positioning plate 2 39.

[0047] The ratchet wheel 1 22 and the ratchet wheel 2 3 are of the same specification and have opposite ratchet teeth. The ratchet teeth of the ratchet wheel 2 3 are set to be counterclockwise. The motor 2 is equipped with a remote controller for controlling the starting and rotation direction of the motor 2 .

[0048] When reflection appears on the surface of the display board 27, the teacher controls the motor 2 to rotate counterclockwise through the remote control. At this time, the driving shaft 21 drives the ratchet 1 22 and the ratchet 2 3 to rotate synchronously. Since the ratchet teeth of the ratchet 2 3 are set to be counterclockwise and the ratchet 1 22 and the ratchet 2 3 are in opposite directions, the transmission wheel 1 23 rotates counterclockwise synchronously with the motor 2, while the transmission wheel 2 31 continues to remain stationary with the chain 32.

[0049] Furthermore, the transmission wheel 23 drives the reciprocating screw 24 to rotate synchronously. At this time, the rotation of the reciprocating screw 24 causes the threaded seat 25 to rise and fall reciprocatingly along the axial direction of the reciprocating screw 24, that is, the height of the threaded seat 25 changes, and the height change of the threaded seat 25 synchronously pushes and pulls the connecting rod 26 and the display board 27 to move. Since the bottom end of the display board 27 is affected by the limiting influence of the deflection shaft 28 and the positioning seat 29, the positioning seat 29 is in a fixed state along with the guide rod 41, and the height of the bottom end of the display board 27 is in a fixed state. At this time, the traction of the display board 27 by the connecting rod 26 and the threaded seat 25 will change the inclination angle of the display board 27.

[0050] When the threaded seat 25 rises along the reciprocating screw 24, the bottom end of the connecting rod 26 approaches the wall 1, at which time the inclination angle of the display board 27 decreases, and the display board 27 is gradually adjusted to a vertical state; when the threaded seat 25 descends along the reciprocating screw 24, the bottom end of the connecting rod 26 gradually moves away from the wall 1, and at this time the inclination angle of the display board 27 increases.

[0051] It should be noted that in order to ensure a good viewing experience, the maximum inclination angle of the display board 27 is set to thirty degrees, that is, when the threaded seat 25 is located at the bottom end of the axial direction of the reciprocating screw 24, the display board 27 is in the maximum inclination state and the inclination angle at this time is thirty degrees.

[0052] On the other hand, the automatic opening and closing effect of the unfolding assembly is achieved by controlling the height of the lifting seat 36 on the transmission shaft 34, and the initial position of the positioning shaft 35 is set at the bottom end of the fixed plate 2 12. At this time, the motor 2 and the drive shaft 21 are controlled to rotate clockwise. As can be seen from the above, at this time, the transmission wheel 1 23 remains stationary and the transmission wheel 2 31 rotates synchronously clockwise. Further, under the transmission action of the chain 32, the two transmission wheels 3 33 and the transmission shaft 34 rotate synchronously. At this time, the rotation of the transmission shaft 34 has a tendency to drive the lifting seat 36 to rotate synchronously, and the lifting seat 36 is limited by the penetration of the positioning shaft 35, which makes it unable to rotate, that is, along with the rotation of the transmission shaft 34, the positioning shaft 35 begins to reciprocate and rise and fall on the surface of the transmission shaft 34.

[0053] Since the lifting seat 36 and the positioning plate 1 37 are initially located at the bottom end of the fixed plate 2 12 and begin to descend along with the rotation of the transmission shaft 34, and the positioning plate 2 39 remains stationary along with the lifting rod 4, that is, the return spring 38 is continuously compressed during the descending process of the positioning plate 1 37, when the lifting seat 36 moves to the bottom end of the transmission shaft 34, the compression degree of the return spring 38 reaches the maximum, at this time, the control check assembly releases the lock on the expansion assembly, and the expansion assembly quickly opens under the rebound action of the return spring 38.

[0054] Furthermore, when the unfolding assembly is opened to the maximum extent, the non-return assembly completes the locking effect of the unfolding assembly again. At this time, the motor 2 continues to drive the transmission shaft 34 to rotate clockwise, and the lifting seat 36 begins to rise along the transmission shaft 34. Along with the rise of the lifting seat 36, the reset spring 38 is gradually stretched along the positioning plate 1 37. When the reset spring 38 returns to the bottom end of the fixed plate 2 12, the stretching degree of the reset spring 38 reaches the maximum. At this time, the non-return assembly is controlled again to release the lock on the unfolding assembly, and the unfolding assembly is quickly closed under the rebound action of the reset spring 38, thereby realizing the automatic opening and closing function of the unfolding assembly.

[0055] Embodiment three:

[0056] See also Figure 5-Figure 7 This embodiment further illustrates the following based on the second embodiment:

[0057] The telescopic mechanism includes two guide rods 41 fixedly connected to the fixed seat 13, and the upper and lower ends of the opposite surfaces of the guide rods 41 are fixedly connected with positioning pins 42. The outer contours of the two guide rods 41 are commonly penetrated and slidably connected with the same lifting rod 4, and the top of the lifting rod 4 is fixedly connected with a writing board 43 located on the rear side of the display board 27, and the center of the bottom end of the lifting rod 4 is fixedly connected with a guide rail frame 44, and a sliding rod 45 is slidably connected to the outer contour of the guide rail frame 44. The middle section of the sliding rod 45 is provided with a straight groove, and both ends of the sliding rod 45 are provided with guide grooves. Compression springs 46 are fixedly connected in the guide grooves at both ends of the sliding rod 45, and the other end of the compression spring 46 is fixedly connected with a latch 47 and the other end of the latch 47 extends out of the sliding rod 45. Triangular teeth 48 are fixedly connected on both sides of the latch 47 away from one end of the compression spring 46, and the directions of the two triangular teeth 48 on the same side are set in opposite directions to each other and are consistent with the specifications of the positioning pin 42.

[0058] It can be seen from the second embodiment that the automatic opening and closing function of the unfolding assembly can only be realized by controlling the check assembly to release the lock on the unfolding assembly, and the change of the locking state is achieved by controlling the contact point between the triangular tooth 48 and the positioning pin 42.

[0059] When the device is in the initial contraction state, the contact relationship between the triangular teeth 48 and the positioning pin 42 is as follows: Figure 7 As shown, the bottom surface of the triangular tooth 48 and the upper surface of the top positioning pin 42 abut against each other, thereby preventing the sliding rod 45 from descending, thereby fixing the position height of the lifting rod 4 at the top. At this time, the return spring 38 can be compressed during the descending process of the positioning plate 37; and when the sliding rod 45 slides along the surface of the guide rail frame 44, the contact point between the triangular tooth 48 and the positioning pin 42 changes. At this time, the original contact between the triangular tooth 48 and the positioning pin 42 is disengaged, and at the same time, the triangular tooth 48 on the other side of the latch 47 comes into contact with the positioning pin 42. Since the contact surface between the triangular tooth 48 on the other side and the positioning pin 42 is an inclined surface, the non-return assembly releases the locking effect of the unfolding assembly at this time, and the rebound of the positioning shaft 35 can squeeze the lifting rod 4 and the sliding rod 45 to move downward.

[0060] At this time, the triangular tooth 48 is synchronously squeezed by the positioning pin 42 and retracted back into the sliding rod 45. After the triangular tooth 48 passes over the positioning pin 42 at the top, it extends again under the rebound of the compression spring 46. Similarly, when the triangular tooth 48 contacts the positioning pin 42 at the bottom, since the contact surface is an inclined surface, the triangular tooth 48 will also pass over the positioning pin 42 at the bottom; when the triangular tooth 48 passes over the positioning pin 42 at the bottom, the telescopic mechanism reaches the maximum expansion stroke. At this time, the writing board 43 is fully extended from the inside of the deflection assembly, the elastic potential energy of the reset spring 38 is completely released, and the lifting seat 36 drops to the bottom end of the transmission shaft 34.

[0061] Subsequently, the motor 2 drives the transmission shaft 34 to continue to rotate clockwise, and the lifting seat 36 begins to rise along the transmission shaft 34. At this time, the upper surface of the triangular tooth 48 and the lower surface of the bottom positioning pin 42 abut against each other, thereby fixing the position height of the lifting rod 4 at the bottom, and the reset spring 38 is gradually stretched as the positioning plate 37 rises synchronously; when the sliding rod 45 slides along the surface of the guide rail frame 44 again, the contact point between the triangular tooth 48 and the positioning pin 42 turns back into an inclined plane, causing its fixing effect on the lifting rod 4 to disappear, and the lifting rod 4 drives the writing board 43 to rise synchronously and shrink back into the deflection assembly under the rebound action of the reset spring 38, thereby completing the process of automatic opening and closing of the unfolding assembly.

[0062] Embodiment 4:

[0063] See also Figure 7-Figure 8 This embodiment further illustrates the following on the basis of the third embodiment:

[0064] One side of the knob 5 is fixedly connected to a connecting shaft 51, and the connecting shaft 51 passes through and is connected to the guide frame 44 for limited rotation. The other end of the connecting shaft 51 is fixedly connected to a bevel gear 52 located inside the guide frame 44. The outer contour of the bevel gear 52 is meshed and transmission-connected with a bevel gear 53 horizontally placed inside the guide frame 44. The axis of the bevel gear 53 is penetrated and fixedly connected with a connecting shaft 54. The top end of the connecting shaft 54 ​​passes through and is connected to the lifting rod 4 for limited rotation. The bottom end of the connecting shaft 54 ​​is fixedly connected to an eccentric wheel 55. The bottom end of the eccentric wheel 55 is fixedly connected to a connecting shaft 3 56, and the connecting shaft 3 56 is limitedly slidably connected to the I-shaped groove of the sliding rod 45.

[0065] The display board 27 and the writing board 43 are respectively provided with a receiver one and a receiver two inside, and both the display board 27 and the writing board 43 are connected to the teaching host 15 signal through wireless signals, the platform 14 is provided with a receiver three inside, the triangular gear 48 is provided with a pressure sensor inside, and the pressure sensor is connected to the motor 2 signal, the outer contours of the top ends of the two guide rods 41 are respectively fixedly connected to the positioning seats 29 at the corresponding positions, and the outer contours of the two ends of the lifting rod 4 are respectively fixedly connected to the positioning plate two 39 at the corresponding positions.

[0066] It can be seen from Example 3 that the locking and unlocking process of the unfolding component by the non-return assembly is achieved by controlling the sliding of the sliding rod 45 on the surface of the guide frame 44. When the teacher turns the knob 5 one hundred and eighty degrees, the bevel gear one 52 rotates half a circle synchronously under the transmission action of the connecting shaft one 51. Further, the bevel gear two 53 and the connecting shaft two 54 also rotate half a circle. Due to the eccentric setting between the eccentric wheel 55 and the connecting shaft two 54, the rotation of the connecting shaft two 54 at this time will cause the eccentric wheel 55 and the connecting shaft three 56 to deflect half a circle with the connecting shaft two 54 as the center. The connecting shaft three 56 further slides in the one-shaped groove of the sliding rod 45 and squeezes to drive the sliding rod 45 to slide along the surface of the guide frame 44, thereby changing the contact point between the triangular tooth 48 and the positioning pin 42 to realize the locking and releasing of the unfolding component by the non-return assembly.

[0067] It should be noted that, since a pressure sensor is provided inside the triangular tooth 48 and the triangular tooth 48 is connected to the signal of the motor 2, when the pressure sensor detects that the compression spring 46 is compressed twice, it controls the motor 2 to start rotating clockwise and stops after the lifting seat 36 is lifted and lowered along the transmission shaft 34 to the maximum stroke; that is, in the retracted state, the sensor controls the motor 2 to rotate clockwise and stops when the lifting seat 36 descends to the bottom end of the transmission shaft 34 to ensure that the reset spring 38 reaches the maximum compression degree. At this time, the unfolding assembly is quickly extended after manual unlocking. During the extension process, the triangular tooth 48 passes over the positioning pins 42 at the top and bottom ends, causing the compression spring 46 to be compressed twice. The sensor controls the motor 2 to rotate clockwise again and stops when the lifting seat 36 rises along the transmission shaft 34 to the bottom end of the fixed plate 12. At this time, the reset spring 38 reaches the maximum extension degree, and then manual unlocking is performed to achieve rapid retraction of the unfolding assembly.

[0068] Embodiment five:

[0069] See also Fig. 9 This embodiment further illustrates the following on the basis of the fourth embodiment:

[0070] A digital media design teaching method comprises the following steps:

[0071] S1. Manual unlocking: The device is initially in a retracted state. When it needs to be unfolded to complete a teaching demonstration, the teacher holds and rotates the knob 5 180 degrees. At this time, the check assembly works and unlocks the unfolding assembly. The unfolding assembly further works to realize the automatic unfolding operation of the device.

[0072] S2, automatic opening and closing: After the non-return component is unlocked, the unfolding component automatically completes the pull-down unfolding operation of the writing board 43. At this time, the teacher can write on the surface of the writing board 43 to complete the teaching assistance. At the same time, when the writing board 43 is unfolded to the maximum extent, the non-return component locks the unfolding component again. At this time, the teacher turns the knob 5 180 degrees again to realize the automatic retraction of the unfolding component;

[0073] S3, angle adjustment: when the external light source causes the display board 27 to reflect light, the teacher controls the motor 2 to rotate counterclockwise through the remote control. At this time, the deflection assembly works synchronously and drives the display board 27 to rotate. By changing the incident angle of light on the display board 27, the reflected light is prevented from falling into the viewing area, thereby improving the display effect;

[0074] S4. Synchronous projection: During the teaching process, the teaching host 15 synchronously transmits the teaching content to the display board 27 and the writing board 43. At the same time, the writing content of the teacher on the writing board 43 is transmitted to the teaching host 15 and then synchronously projected on the display board 27.

[0075] It should be noted that during the presentation process, the teacher inputs the teaching content into the teaching host 15. At this time, the receivers one and two on the display board 27 and the writing board 43 receive the data transmitted by the teaching host 15 and then complete the presentation of the teaching content. Students complete their understanding of the teaching content by watching the display board 27. The teacher provides auxiliary guidance on the teaching content by writing on the surface of the writing board 43. The content written on the writing board 43 is received by the teaching host 15 via the receiver three and synchronously sent to the display board 27. The display board 27 completes the reception of the teaching content and the written content via the receiver one and synchronously displays them.

[0076] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A digital media design teaching and display device, comprising a deflection component, an expansion component and a non-return component arranged on a wall (1), characterized in that: The top of the wall (1) is fixedly connected to a fixing plate 1 (11), a position near the top of the wall (1) is fixedly connected to a fixing plate 2 (12), both sides of the bottom of the wall (1) are fixedly connected to fixing seats (13), a podium (14) is placed on one side of the wall (1), and a teaching host (15) is arranged at the top of the podium (14); The deflection assembly comprises a display board (27) for displaying teaching content, and the deflection assembly is arranged between the first fixed plate (11) and the second fixed plate (12) and is connected to the first fixed plate (11) in a limited rotation manner; The deployment assembly includes a transmission mechanism for realizing motion transmission and a telescopic mechanism for controlling the degree of deployment, the telescopic mechanism is arranged inside the deflection assembly and is fixedly connected to the deflection assembly, and the transmission mechanism is arranged at the top of the telescopic mechanism and is transmission-connected to the deflection assembly; The non-return component comprises a knob (5) for realizing the unfolding positioning through manual control of a teacher. The non-return component is arranged at the bottom of the unfolding component and is in transmission connection with the unfolding component.

2. A digital media design teaching and display device according to claim 1, characterized in that: The deflection assembly also includes a motor (2) as a power source of the device, a driving shaft (21) is penetrated and fixedly connected at the axis of the motor (2), a ratchet wheel (22) is fixedly connected to the top of the driving shaft (21), a transmission wheel (23) is unidirectionally connected to the outer contour of the ratchet wheel (22), a reciprocating screw rod (24) is fixedly connected to the top of the transmission wheel (23), and the top of the reciprocating screw rod (24) penetrates and is connected to the fixed plate (11) for limited rotation, and the reciprocating screw rod (24) is fixedly connected to the top of the transmission wheel (23). A threaded seat (25) is screwed onto the outer contour of the rod 1 (24); a side of the threaded seat (25) away from the wall (1) is rotatably connected to a connecting rod (26) via a pin; the other end of the connecting rod (26) is rotatably connected to a display board (27) via a pin; a brush is provided on the side of the bottom end of the display board (27) close to the wall (1); a deflection shaft (28) is penetrated through the bottom end of the display board (27) and is rotatably connected; and positioning seats (29) are penetrated and rotatably connected at both ends of the deflection shaft (28).

3. A digital media design teaching and display device according to claim 1, characterized in that: The transmission mechanism comprises a ratchet wheel (3) which is penetrated and fixedly connected to the bottom end of the driving shaft (21); a transmission wheel (31) is unidirectionally connected to the outer contour of the ratchet wheel (3); a chain (32) is meshed and transmission-connected to the outer contour of the transmission wheel (31); the transmission wheel (31) is located in the middle section of the chain (32); the inner contours of both ends of the chain (32) are meshed and transmission-connected to the transmission wheel (33); the axis centers of the two transmission wheels (33) are penetrated and fixedly connected to the transmission shaft (34); and the transmission shaft (34) is further penetrated and transmission-connected to the transmission wheel (33). The fixed plate 1 (11) and the fixed plate 2 (12) are connected to each other in a limited rotation manner. A lifting seat (36) is screwed onto the outer contour of the bottom ends of the two transmission shafts (34). The four corners of the two lifting seats (36) are penetrated by and slidably connected with a positioning shaft (35), and the top end of the positioning shaft (35) is fixedly connected to the lower surface of the fixed plate 2 (12). One side of the lifting seat (36) is fixedly connected to the positioning plate 1 (37), the bottom end of the positioning plate 1 (37) is fixedly connected to a return spring (38), and the bottom end of the return spring (38) is fixedly connected to the positioning plate 2 (39).

4. A digital media design teaching and display device according to claim 2, characterized in that: The ratchet wheel 1 (22) and the ratchet wheel 2 (3) are of the same specifications and have ratchet teeth in opposite directions. The ratchet teeth of the ratchet wheel 2 (3) are arranged in a counterclockwise direction. The motor (2) is equipped with a remote controller for controlling the starting and rotation direction of the motor (2).

5. A digital media design teaching and display device according to claim 1, characterized in that: The telescopic mechanism comprises two guide rods (41) fixedly connected to the fixing seat (13), the upper and lower ends of the opposite surfaces of the guide rods (41) are fixedly connected with positioning pins (42), the outer contours of the two guide rods (41) are penetrated by a common lifting rod (4) and are slidably connected, the top end of the lifting rod (4) is fixedly connected to a writing board (43) located at the rear side of the display board (27), the center of the bottom end of the lifting rod (4) is fixedly connected to a guide rail frame (44), and the outer contour of the guide rail frame (44) is slidably connected to a sliding rod (45), A straight groove is provided in the middle section of the sliding rod (45), and guide grooves are provided at both ends of the sliding rod (45). Compression springs (46) are fixedly connected in the guide grooves at both ends of the sliding rod (45), and the other end of the compression spring (46) is fixedly connected to a latch (47), and the other end of the latch (47) extends out of the interior of the sliding rod (45). Both sides of the latch (47) away from one end of the compression spring (46) are fixedly connected with triangular teeth (48), and the directions of the two triangular teeth (48) on the same side are opposite to each other and are consistent with the specifications of the positioning pin (42).

6. A digital media design teaching and display device according to claim 1, characterized in that: One side of the knob (5) is fixedly connected to a connecting shaft 1 (51), and the connecting shaft 1 (51) passes through and is connected to the guide rail frame (44) for limited rotation. The other end of the connecting shaft 1 (51) is fixedly connected to a bevel gear 1 (52) located inside the guide rail frame (44). The outer contour of the bevel gear 1 (52) is meshed and transmission-connected with a bevel gear 2 (53) horizontally placed inside the guide rail frame (44). The axis of the bevel gear 2 (53) is penetrated and fixedly connected to the connecting shaft 2 (54). The top end of the connecting shaft 2 (54) passes through and is connected to the lifting rod (4) for limited rotation. The bottom end of the connecting shaft 2 (54) is fixedly connected to an eccentric wheel (55). The bottom end of the eccentric wheel (55) is fixedly connected to a connecting shaft 3 (56), and the connecting shaft 3 (56) is connected to the I-shaped groove of the sliding rod (45) for limited sliding.

7. A digital media design teaching and display device according to claim 5, characterized in that: The display board (27) and the writing board (43) are respectively provided with a first receiver and a second receiver, and the display board (27) and the writing board (43) are both connected to the teaching host (15) by wireless signals. The podium (14) is provided with a third receiver. The triangular gear (48) is provided with a pressure sensor, and the pressure sensor is connected to the motor (2) by signals. The outer contours of the top ends of the two guide rods (41) are respectively fixedly connected to the positioning seats (29) at corresponding positions. The outer contours of the two ends of the lifting rod (4) are respectively fixedly connected to the positioning plates (39) at corresponding positions.

8. A digital media design teaching method, applied to a digital media design teaching demonstration device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, manual unlocking: the device is initially in a retracted state. When it needs to be unfolded to complete a teaching demonstration, the teacher holds and turns the knob (5) 180 degrees. At this time, the check assembly works and unlocks the unfolding assembly. The unfolding assembly further works to realize the automatic unfolding operation of the device. S2, automatic opening and closing: after the non-return component is unlocked, the unfolding component automatically completes the pull-down unfolding operation of the writing board (43), and the teacher can write on the surface of the writing board (43) to complete the teaching assistance. At the same time, when the writing board (43) is unfolded to the maximum extent, the non-return component again completes the locking of the unfolding component, and the teacher rotates the knob (5) 180 degrees again to realize the automatic retraction of the unfolding component; S3, angle adjustment: when the external light source causes the surface of the display board (27) to reflect light, the teacher controls the motor (2) to rotate counterclockwise through the remote control, and the deflection assembly works synchronously and drives the display board (27) to rotate, thereby changing the incident angle of the light on the surface of the display board (27) to prevent the reflected light from falling into the viewing area, thereby improving the display effect; S4, synchronous projection: During the teaching process, the teaching host (15) synchronously transmits the teaching content to the display board (27) and the writing board (43), and at the same time, the writing content of the teacher on the writing board (43) is transmitted from the writing board (43) to the teaching host (15) and then synchronously projected on the display board (27).

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