Memory device capable of automatically adjusting height and visual angle of platform

Abstract

The invention discloses a memory device capable of automatically adjusting the height and visual angle of a platform, and relates to the technical field of platforms, the memory device comprises a table plate, a mounting plate is arranged at the bottom of the table plate, a visual angle adjusting mechanism is arranged on the middle side of the rear end of the mounting plate, and a height adjusting mechanism is arranged on the middle side of the bottom of the mounting plate; the left end and the right end, close to the height adjusting mechanism, of the bottom of the mounting plate are each provided with an auxiliary assembly, the left end and the right end of the bottom of the bottom plate are each fixedly connected with two self-locking universal wheels, the left side and the right side of the height adjusting mechanism are each provided with two placement assemblies, and the right side of the top of the table plate is fixedly connected with a multimedia display screen. The front side of the top of the table board is fixedly connected with a baffle. The viewing angle adjusting mechanism is controlled to work, the rear side of the table plate is driven to turn upwards along the mounting plate, the inclination angle of the table plate is adjusted, and meanwhile notes and books on the table plate can be prevented from falling off through the baffle.

Description

Technical Field

[0001] The invention relates to the technical field of podiums, and in particular to a memory device for automatically adjusting the height and viewing angle of a podium. Background Art

[0002] A podium is a platform above the ground where people who give lectures or speeches stand. It is one of the indispensable teaching tools in daily learning. It is used for teaching courses, reports, speeches and speeches. Most of them are made of wood and metal. They can be specifically classified into traditional wooden podiums, multifunctional teaching podiums, multimedia teaching podiums, etc. Their main task is to assist teaching staff in conducting course lectures and report presentations. The following problems exist in the existing technology:

[0003] The height and inclination of the existing fixed podium cannot be adjusted, and cannot meet the various needs of lecturers for the podium. In addition, it is inconvenient to adjust the height of the podium according to the height of the user when the podium is in use, which makes it inconvenient for people of different heights to teach. In addition, the existing podium is too heavy and inconvenient to carry, and it is not convenient to place other equipment, resulting in poor use effect of the podium. Summary of the invention

[0004] The present invention provides a memory device for automatically adjusting the height and viewing angle of a podium to solve the problems existing in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A memory device for automatically adjusting the height and viewing angle of a podium comprises a table top, a mounting plate is provided at the bottom of the table top, a viewing angle adjustment mechanism is provided at the middle side of the rear end of the mounting plate, and the front side of the outer wall of the viewing angle adjustment mechanism penetrates into the interior of the mounting plate, a height adjustment mechanism is provided at the middle side of the bottom of the mounting plate, auxiliary components are respectively provided at the left and right ends of the bottom of the mounting plate near the height adjustment mechanism, a bottom plate is provided at the bottom of the height adjustment mechanism and the auxiliary components, two self-locking universal wheels are respectively fixedly connected to the left and right ends of the bottom of the bottom plate, two placement components are respectively provided on the left and right sides of the height adjustment mechanism, a multimedia display screen is fixedly connected to the right side of the top of the table top, a baffle is fixedly connected to the front side of the top of the table top, a control panel is provided at the front end of the mounting plate, and a microphone is provided at one end of the multimedia display screen.

[0007] A further improvement of the technical solution of the present invention is that a connecting groove is opened on the middle side of the top of the mounting plate, and the viewing angle adjustment mechanism includes a mounting shell, a battery box, a stepping motor, a lead screw, a moving block, two connecting blocks and a movable plate, the rear end of the mounting shell is fixedly connected to the front end of the battery box, the interior of the mounting shell is fixedly connected to one end of the stepping motor, the battery box is electrically connected to the connecting end of the stepping motor through the battery, the output shaft of the stepping motor is fixedly connected to the rear end of the lead screw, the front end of the outer wall of the lead screw passes through the rear end of the mounting plate to the front end of the connecting groove and is rotatably connected therebetween, the outer wall of the lead screw passes through the front and rear ends of the moving block and is threadedly connected therebetween, the bottoms of the two connecting blocks are respectively fixedly connected to the left and right sides of the top of the moving block, and the opposite surfaces of the two connecting blocks are rotatably connected to the two sides of one end of the movable plate.

[0008] A further improvement of the technical solution of the present invention is that: two mounting blocks are fixedly connected to the rear side of the bottom of the table top, the opposite surfaces of the two mounting blocks are rotatably connected to the two sides of the other end of the movable plate, the rear sides of the left and right ends of the mounting plate are fixedly connected to connecting plates, the two connecting plates are fixedly connected to one side away from the upper ends thereof, and the opposite surfaces of the two curved plates are provided with curved sliding grooves.

[0009] A further improvement of the technical solution of the present invention is that: the rear sides of the left and right ends of the table top are respectively fixedly connected with arc-shaped sliders, the outer walls of the arc-shaped sliders are slidably connected to the inside of the arc-shaped slide groove, the left and right sides of the front end of the mounting plate are respectively provided with grooves, and the left and right sides of the front side of the bottom of the table top are respectively fixedly connected with positioning blocks, the two positioning blocks are respectively arranged inside the grooves, and the right end of the mounting plate is provided with an insertion rod, the left end of the outer wall of the insertion rod passes through the groove, penetrates the left and right ends of the positioning block and is fixedly connected to the left end of the mounting plate.

[0010] A further improvement of the technical solution of the present invention is that the height adjustment mechanism comprises a rectangular tube and a rectangular column, the bottom of the rectangular tube is fixedly connected to the top of the base plate, the top of the rectangular column is fixedly connected to the bottom of the mounting plate, the outside of the rectangular column is sleeved with the inside of the rectangular tube, the middle side of the front end of the rectangular tube is provided with a moving groove that runs through inside and outside, and the left end of the moving groove is provided with a plurality of L-shaped card slots that run through inside and outside in an equidistant array, an operating component is provided on the lower side of the front end of the rectangular column, the front end of the outer wall of the operating component penetrates to the front end of the rectangular tube through the moving groove and the L-shaped card slot, the front end of the rectangular tube is fixedly connected to magnetic suction plates on the left and right sides of the vertical direction near the plurality of L-shaped card slots, and the left and right ends of the rectangular tube are respectively provided with a plurality of threaded grooves in an equidistant array, the auxiliary component comprises a fixed tube and a support rod, the inside of the fixed tube is slidably connected to the outer wall of the support rod, the bottom of the fixed tube is fixedly connected to the top of the base plate, and the top of the support rod is fixedly connected to the bottom of the mounting plate.

[0011] A further improvement of the technical solution of the present invention is that: an L-shaped groove is provided on the lower side of the front end of the rectangular column, and an L-shaped slide groove is provided on the inner wall of the L-shaped groove; the operating component comprises a rectangular rod, a return-shaped slider, a handle and two iron blocks; the inner wall of the return-shaped slider is fixedly connected to the rear side of the outer wall of the rectangular rod, and the rear side of the outer wall of the rectangular rod is arranged inside the L-shaped groove; the outer wall of the return-shaped slider is slidably connected to the inner wall of the L-shaped slide groove; the outer wall of the rectangular rod is engaged with the inner part of the L-shaped slot through a moving groove; the front end of the rectangular rod is fixedly connected to the rear end of the handle; one end of the two iron blocks is respectively fixedly connected to the left and right ends of the handle, and the rear surface of the iron block is magnetically connected to the front surface of the magnetic sheet.

[0012] A further improvement of the technical solution of the present invention is that: limiting grooves are respectively provided on the left and right sides of the rear end of the rectangular column, and two sliders are fixedly connected to the upper side of the rear end of the rectangular tube, and the outer walls of the two sliders are respectively slidably connected to the inner walls of the limiting grooves.

[0013] A further improvement of the technical solution of the present invention is that the placement assembly includes an L-shaped support plate, a positioning plate, a screw and a knob, the top of the positioning plate is fixedly connected to the bottom of the lateral surface of the L-shaped support plate close to one end of the rectangular tube, a connecting hole is opened in the middle of the positioning plate to pass through the left and right, one end of the screw is fixedly connected to one end of the knob, and the outer wall of the other end of the screw passes through the connecting hole to the inside of the thread groove and is threadedly connected therebetween.

[0014] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0015] 1. The present invention provides a memory device for automatically adjusting the height and viewing angle of a podium. The device cooperates with a table mounting plate, a viewing angle adjustment mechanism and a baffle plate. The viewing angle adjustment mechanism is operated to drive the rear side of the table panel to flip upward along the mounting plate, thereby adjusting the inclination angle of the table panel. At the same time, the baffle plate can prevent notes and books on the table panel from falling off, thereby achieving automatic adjustment of the viewing angle. This solves the problem that the height and inclination of the podium plane of the existing fixed podium cannot be adjusted, and cannot adapt to the lecturer's various needs for the podium. The device achieves the beneficial effect of adjusting the inclination angle of the table panel to adapt to the lecturer's various needs for the podium.

[0016] 2. The present invention provides a memory device for automatically adjusting the height and viewing angle of a podium. The device adopts the cooperation among a mounting plate, a height adjustment mechanism, auxiliary components and a bottom plate. The length of the height adjustment mechanism is manually adjusted and fixed so that the height of the podium can be adjusted according to the height of the user. During the adjustment process, auxiliary components are arranged on the left and right sides of the height adjustment mechanism to improve the stability of the podium during adjustment, thereby solving the problem that it is inconvenient to adjust the height of the podium according to the height of the user during use, which makes it inconvenient for people of different heights to teach, and achieves the beneficial effect of facilitating the adjustment of the podium height according to the height of the user.

[0017] 3. The present invention provides a memory device for automatically adjusting the height and viewing angle of a podium. The device adopts the cooperation among a base plate, self-locking universal wheels and a placement assembly. By arranging self-locking universal wheels at the bottom of the base plate, the podium can be easily transported and moved. At the same time, by installing a plurality of placement assemblies on both sides of the height adjustment mechanism according to the specifications of other equipment, other equipment that needs to be used can be placed through the placement assemblies. This solves the problem that the existing podium is too bulky and inconvenient to transport, and it is not convenient to place other equipment, resulting in poor use of the podium. This achieves the beneficial effects of facilitating the transportation of the podium, facilitating the placement of equipment, and improving the convenience of using the podium. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the memory device for automatically adjusting the height and viewing angle of the podium of the present invention;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the viewing angle adjustment mechanism of the present invention;

[0020] Figure 3 It is a schematic diagram of the connection between the table top and the mounting plate of the present invention;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the height adjustment mechanism and auxiliary components of the present invention;

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the operating component of the present invention;

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the placement component of the present invention.

[0024] In the figure: 1, table top; 2, mounting plate; 201, connecting groove; 202, groove; 21, connecting plate; 22, positioning block; 23, arc-shaped slider; 3, viewing angle adjustment mechanism; 31, mounting shell; 32, battery box; 33, stepping motor; 34, lead screw; 35, moving block; 36, connecting block; 37, movable plate; 4, height adjustment mechanism; 41, rectangular tube; 410, moving groove; 411, L-shaped slot; 412, threaded groove; 413, slider; 42, rectangular column; 420, L-shaped slot; 4201, L-shaped slide; 421 , limit groove; 43, operating component; 431, rectangular rod; 432, return slider; 433, handle; 434, iron block; 44, magnetic sheet; 5, auxiliary component; 51, fixing tube; 52, support rod; 6, bottom plate; 7, self-locking universal wheel; 8, placement component; 81, L-shaped support plate; 82, positioning plate; 820, connecting hole; 83, screw; 84, knob; 9, multimedia display screen; 10, baffle; 11, control panel; 12, microphone; 13, mounting block; 14, arc plate; 140, arc slide groove; 15, plug rod. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with embodiments:

[0026] Example 1

[0027] like Figure 1-6 As shown, the present invention provides a memory device for automatically adjusting the height and viewing angle of a podium, comprising a table top 1, a mounting plate 2 is arranged at the bottom of the table top 1, a viewing angle adjustment mechanism 3 is arranged at the middle side of the rear end of the mounting plate 2, and the front side of the outer wall of the viewing angle adjustment mechanism 3 penetrates into the interior of the mounting plate 2, a height adjustment mechanism 4 is arranged at the middle side of the bottom of the mounting plate 2, auxiliary components 5 are respectively arranged at the left and right ends of the bottom of the mounting plate 2 near the height adjustment mechanism 4, a bottom plate 6 is arranged at the bottom of the height adjustment mechanism 4 and the auxiliary component 5, two self-locking universal wheels 7 are respectively fixedly connected to the left and right ends of the bottom of the bottom plate 6, two placement components 8 are respectively arranged on the left and right sides of the height adjustment mechanism 4, a multimedia display screen 9 is fixedly connected to the top right side of the table top 1, a baffle 10 is fixedly connected to the top front side of the table top 1, a control panel 11 is arranged at the front end of the mounting plate 2, and a microphone 12 is arranged at one end of the multimedia display screen 9;

[0028] A viewing angle adjustment mechanism 3, a height adjustment mechanism 4, an auxiliary component 5, a base plate 6, a self-locking universal wheel 7 and a placement component 8 are provided. By providing the self-locking universal wheel 7 at the bottom of the base plate 6, it is convenient to carry and move the podium. The viewing angle adjustment mechanism 3 is provided to facilitate the adjustment of the inclination of the table top 1. At the same time, the height adjustment mechanism 4 is provided to facilitate the adjustment of the height of the podium, thereby facilitating the use effect of the user.

[0029] Example 2

[0030] like Figure 1-6 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, a connecting groove 201 is opened on the middle side of the top of the mounting plate 2, and the viewing angle adjustment mechanism 3 includes a mounting shell 31, a battery box 32, a stepping motor 33, a lead screw 34, a moving block 35, two connecting blocks 36 and a movable plate 37, the rear end of the mounting shell 31 is fixedly connected to the front end of the battery box 32, the interior of the mounting shell 31 is fixedly connected to one end of the stepping motor 33, the battery box 32 is electrically connected to the connecting end of the stepping motor 33 through the battery, and the output shaft of the stepping motor 33 is fixedly connected to the rear end of the lead screw 34. The front end of the outer wall of the lead screw 34 passes through the rear end of the mounting plate 2 to the front end of the connecting groove 201 and is rotatably connected therebetween. The outer wall of the lead screw 34 passes through the front and rear ends of the moving block 35 and is threadedly connected therebetween. The bottoms of the two connecting blocks 36 are respectively fixedly connected to the left and right sides of the top of the moving block 35. The opposite surfaces of the two connecting blocks 36 are rotatably connected to the two sides of one end of the movable plate 37. The rear side of the bottom of the table top 1 is respectively fixedly connected to two mounting blocks 13. By connecting the two ends of the movable plate 37 to the connecting block 36 and the mounting block 13, respectively, the lead screw 34 can be moved by the movable plate 37 when rotating. The movable plate 37 performs an up-and-down flipping motion on the rear side of the table top 1, and the opposite surfaces of the two mounting blocks 13 are rotatably connected to the two sides of the other end of the movable plate 37. The rear sides of the left and right ends of the mounting plate 2 are respectively fixedly connected with connecting plates 21, and the sides of the upper ends of the two connecting plates 21 that are away from each other are both fixedly connected with arc plates 14. The opposite surfaces of the two arc plates 14 are both provided with arc grooves 140. The rear sides of the left and right ends of the table top 1 are respectively fixedly connected with arc sliders 23, and the outer wall of the arc slider 23 is slidably connected to the inside of the arc groove 140. The arc slider 23 slides along the inner wall of the arc groove 140. It plays the role of limiting the flipping trajectory of the table top 1. Grooves 202 are respectively provided on the left and right sides of the front end of the mounting plate 2. Positioning blocks 22 are respectively fixedly connected to the left and right sides of the front side of the bottom of the table top 1. The two positioning blocks 22 are respectively arranged inside the grooves 202. An insertion rod 15 is provided at the right end of the mounting plate 2. The left end of the outer wall of the insertion rod 15 passes through the groove 202, penetrates the left and right ends of the positioning block 22 and is fixedly connected to the left end of the mounting plate 2. The positioning block 22 is rotated along the groove 202 to position it at the front side of the table top 1, so as to facilitate the adjustment of the inclination of the table top 1.

[0031] Example 3

[0032] like Figure 1-6As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the height adjustment mechanism 4 includes a rectangular tube 41 and a rectangular column 42, the bottom of the rectangular tube 41 is fixedly connected to the top of the bottom plate 6, the top of the rectangular column 42 is fixedly connected to the bottom of the mounting plate 2, the outside of the rectangular column 42 is sleeved with the inside of the rectangular tube 41, a moving groove 410 that penetrates inside and outside is opened on the middle side of the front end of the rectangular tube 41, and a plurality of L-shaped card grooves 411 that penetrate inside and outside are opened in an equidistant array at the left end of the moving groove 410, an operating component 43 is arranged on the lower side of the front end of the rectangular column 42, and the front end of the outer wall of the operating component 43 penetrates to the front end of the rectangular tube 41 through the moving groove 410 and the L-shaped card groove 411, and the rectangular The front end of the tube 41 is close to a plurality of L-shaped slots 411 and is fixedly connected to magnetic suction plates 44 on both sides in the vertical direction. The left and right ends of the rectangular tube 41 are respectively provided with a plurality of threaded grooves 412 in an equidistant array. The auxiliary component 5 includes a fixed tube 51 and a support rod 52. The interior of the fixed tube 51 is slidably connected to the outer wall of the support rod 52. The support rod 52 slides along the interior of the fixed tube 51 to improve the stability of the podium during height adjustment. The bottom of the fixed tube 51 is fixedly connected to the top of the base plate 6, and the top of the support rod 52 is fixedly connected to the bottom of the mounting plate 2. An L-shaped slot 420 is provided on the lower side of the front end of the rectangular column 42, and an L-shaped slide groove 4201 is provided on the inner wall of the L-shaped slot 420. The operating assembly 43 includes a rectangular rod 431, a return-shaped slider 432, a handle 433 and two iron blocks 434. The inner wall of the return-shaped slider 432 is fixedly connected to the rear side of the outer wall of the rectangular rod 431. The rear side of the outer wall of the rectangular rod 431 is arranged inside the L-shaped groove 420. The outer wall of the return-shaped slider 432 is slidably connected to the inner wall of the L-shaped slide groove 4201. The outer wall of the rectangular rod 431 is engaged with the inside of the L-shaped groove 411 through the moving groove 410. By sliding the return-shaped slider 432 on the rectangular rod 431 along the L-shaped slide groove 4201, the rectangular rod 431 is driven to move along the moving groove 410 and the L-shaped groove 411, so that the height between the rectangular column 42 and the rectangular tube 41 can be adjusted. During the whole operation, the front end of the rectangular rod 431 is fixedly connected to the rear end of the handle 433, one end of the two iron blocks 434 is fixedly connected to the left and right ends of the handle 433 respectively, the rear surface of the iron block 434 is magnetically connected to the front surface of the magnetic sheet 44, the iron block 434 and the magnetic sheet 44 are magnetically attracted to each other, so as to lock the adjusted height, and limiting grooves 421 are respectively provided on the left and right sides of the rear end of the rectangular column 42, and two sliders 413 are respectively fixedly connected to the upper side of the rear end of the rectangular tube 41, and the outer walls of the two sliders 413 are respectively slidably connected to the inner wall of the limiting groove 421, and the slider 413 slides along the limiting groove 421, so as to limit the moving trajectory of the rectangular column 42 in the rectangular tube 41.

[0033] Example 3

[0034] like Figure 1-6As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, the placement component 8 includes an L-shaped support plate 81, a positioning plate 82, a screw 83 and a knob 84, the top of the positioning plate 82 is fixedly connected to the bottom of the lateral surface of the L-shaped support plate 81 close to one end of the rectangular tube 41, and a connecting hole 820 is opened in the middle of the positioning plate 82 to pass through the left and right sides. One end of the screw 83 is fixedly connected to one end of the knob 84, and the outer wall of the other end of the screw 83 passes through the connecting hole 820 to the inside of the thread groove 412 and is threadedly connected therebetween. The screw 83 is used to screw the L-shaped support plate 81 into the thread groove 412 through the positioning plate 82 and fix it, so that the L-shaped support plate 81 is installed at one end of the rectangular tube 41, which is convenient for positioning and placement according to the specifications of other equipment.

[0035] The working principle of the memory device for automatically adjusting the height and viewing angle of the podium will be described in detail below.

[0036] like Figure 1-6 As shown, when the podium is used again, first, the podium is moved to a suitable location through the self-locking universal wheels 7, and according to the specifications of other small devices used, the L-shaped support plate 81 is aligned and fitted with the threaded groove 412 of the corresponding height through the positioning plate 82, and then the screw 83 is inserted along the connecting hole 820, and the knob 84 is rotated to drive the screw 83 to screw into the inside of the threaded groove 412 for fixation, and other devices are placed on the L-shaped support plate 81 for easy operation and use, and matching batteries are installed in the battery box 32 to provide power to the stepping motor 33 in the mounting shell 31. The user can use the handle 433 to drive the rectangular rod 431 to move upward along the L-shaped slot 411 according to his own height or the habit of using the height. During the movement, the rectangular rod 431 slides along the L-shaped slide groove 4201 in the L-shaped slot 420 through the return slider 432, so that the rectangular rod 431 is moved to the moving position through the L-shaped slot 411 The movable groove 410 then drives the rectangular column 42 to move upward or downward. After moving to a suitable height, the rectangular rod 431 is aligned with the corresponding L-shaped slot 411, and then the rectangular rod 431 is moved and engaged into the lower side of the L-shaped slot 411, so that the iron block 434 is magnetically attracted to the surface of the magnetic sheet 44 for fixation, and the height of the podium is locked. When the inclination angle of the table board 1 needs to be adjusted, the upward button on the operation control panel 11 is operated, and the output shaft of the stepper motor 33 drives the screw 34 to rotate, so that the moving block 35 on the screw 34 is moved backward, so that the rear side of the table board 1 is driven to flip upward through the movable plate 37. At the same time, the positioning block 22 on the front side of the table board 1 is rotated along the inside of the groove 202 through the insertion rod 15, so as to adjust the viewing angle of the table board 1, facilitate the operation of the multimedia display screen 9 and the microphone 12, and at the same time, the baffle 10 can prevent notes and books on the table board 1 from falling.

[0037] The specific types and structures of the self-locking universal wheels 7, multimedia display screen 9 and microphone 12 used are all existing products, and the specific circuit connection structure and control relationship of the multimedia display screen 9 and microphone 12 are all existing technologies, which will not be described in detail here.

[0038] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A memory device for automatically adjusting the height and viewing angle of a podium, comprising a table top (1), characterized in that: A mounting plate (2) is provided at the bottom of the table top (1), a viewing angle adjustment mechanism (3) is provided at the middle side of the rear end of the mounting plate (2), and the front side of the outer wall of the viewing angle adjustment mechanism (3) penetrates into the interior of the mounting plate (2), a height adjustment mechanism (4) is provided at the middle side of the bottom of the mounting plate (2), auxiliary components (5) are provided at the left and right ends of the bottom of the mounting plate (2) near the height adjustment mechanism (4), the bottom of the height adjustment mechanism (4) and the auxiliary components (5) are both provided with a bottom plate (6), the left and right ends of the bottom of the bottom plate (6) are respectively fixedly connected to two self-locking universal wheels (7), the left and right sides of the height adjustment mechanism (4) are respectively provided with two placement components (8), the top right side of the table top (1) is fixedly connected to a multimedia display screen (9), the top front side of the table top (1) is fixedly connected to a baffle plate (10), the front end of the mounting plate (2) is provided with a control panel (11), and one end of the multimedia display screen (9) is provided with a microphone (12).

2. A memory device for automatically adjusting the height and viewing angle of a podium according to claim 1, characterized in that: A connecting groove (201) is provided on the middle side of the top of the mounting plate (2); the viewing angle adjustment mechanism (3) comprises a mounting shell (31), a battery box (32), a stepping motor (33), a lead screw (34), a moving block (35), two connecting blocks (36) and a movable plate (37); the rear end of the mounting shell (31) is fixedly connected to the front end of the battery box (32); the interior of the mounting shell (31) is fixedly connected to one end of the stepping motor (33); the battery box (32) is electrically connected to the connecting end of the stepping motor (33) via the battery The output shaft of the stepping motor (33) is fixedly connected to the rear end of the lead screw (34); the front end of the outer wall of the lead screw (34) passes through the rear end of the mounting plate (2) to the front end inside the connecting groove (201) and is rotatably connected therebetween; the outer wall of the lead screw (34) passes through the front and rear ends of the moving block (35) and is threadedly connected therebetween; the bottoms of the two connecting blocks (36) are respectively fixedly connected to the left and right sides of the top of the moving block (35); the opposite surfaces of the two connecting blocks (36) are rotatably connected to the two sides of one end of the movable plate (37).

3. The memory device for automatically adjusting the height and viewing angle of a podium according to claim 1, characterized in that: Two mounting blocks (13) are fixedly connected to the rear side of the bottom of the table top (1), and the opposite surfaces of the two mounting blocks (13) are rotatably connected to the two sides of the other end of the movable plate (37). The rear sides of the left and right ends of the mounting plate (2) are fixedly connected to connecting plates (21), and the sides away from the upper ends of the two connecting plates (21) are fixedly connected to arc plates (14), and the opposite surfaces of the two arc plates (14) are provided with arc-shaped sliding grooves (140).

4. The memory device for automatically adjusting the height and viewing angle of a podium according to claim 3, characterized in that: The rear sides of the left and right ends of the table top (1) are respectively fixedly connected with arc-shaped sliding blocks (23), and the outer wall of the arc-shaped sliding block (23) is slidably connected to the inside of the arc-shaped sliding groove (140). The left and right sides of the front end of the mounting plate (2) are respectively provided with grooves (202). The left and right sides of the front side of the bottom of the table top (1) are respectively fixedly connected with positioning blocks (22), and the two positioning blocks (22) are respectively arranged inside the grooves (202). The right end of the mounting plate (2) is provided with an insertion rod (15), and the left end of the outer wall of the insertion rod (15) passes through the groove (202), passes through the left and right ends of the positioning block (22), and is fixedly connected to the left end of the mounting plate (2).

5. The memory device for automatically adjusting the height and viewing angle of a podium according to claim 1, characterized in that: The height adjustment mechanism (4) comprises a rectangular tube (41) and a rectangular column (42); the bottom of the rectangular tube (41) is fixedly connected to the top of the bottom plate (6); the top of the rectangular column (42) is fixedly connected to the bottom of the mounting plate (2); the outside of the rectangular column (42) is sleeved with the inside of the rectangular tube (41); a moving groove (410) penetrating inside and outside is provided at the middle side of the front end of the rectangular tube (41); a plurality of L-shaped card grooves (411) penetrating inside and outside are provided in an equidistant array at the left end of the moving groove (410); an operating component (43) is provided at the lower side of the front end of the rectangular column (42); the front end of the outer wall of the operating component (43) is movable The groove (410) and the L-shaped groove (411) extend through the front end of the rectangular tube (41); the front end of the rectangular tube (41) is fixedly connected to magnetic suction plates (44) on both sides of the left and right sides in the vertical direction near the plurality of L-shaped grooves (411); the left and right ends of the rectangular tube (41) are respectively provided with a plurality of thread grooves (412) in an equidistant array; the auxiliary component (5) comprises a fixed tube (51) and a support rod (52); the interior of the fixed tube (51) is slidably connected to the outer wall of the support rod (52); the bottom of the fixed tube (51) is fixedly connected to the top of the bottom plate (6); and the top of the support rod (52) is fixedly connected to the bottom of the mounting plate (2).

6. A memory device for automatically adjusting the height and viewing angle of a podium according to claim 5, characterized in that: The lower side of the front end of the rectangular column (42) is provided with an L-shaped groove (420), the inner wall of the L-shaped groove (420) is provided with an L-shaped sliding groove (4201), the operating component (43) comprises a rectangular rod (431), a return-shaped slider (432), a handle (433) and two iron blocks (434), the inner wall of the return-shaped slider (432) is fixedly connected to the rear side of the outer wall of the rectangular rod (431), and the rear side of the outer wall of the rectangular rod (431) is arranged inside the L-shaped groove (420). The outer wall of the return-shaped slider (432) is slidably connected to the inner wall of the L-shaped slide groove (4201), the outer wall of the rectangular rod (431) is engaged with the inner part of the L-shaped slot (411) through the movable slot (410), the front end of the rectangular rod (431) is fixedly connected to the rear end of the handle (433), one end of the two iron blocks (434) is fixedly connected to the left and right ends of the handle (433), and the rear surface of the iron block (434) is magnetically connected to the front surface of the magnetic sheet (44).

7. A memory device for automatically adjusting the height and viewing angle of a podium according to claim 6, characterized in that: The left and right sides of the rear end of the rectangular column (42) are respectively provided with limiting grooves (421); the upper side of the rear end of the rectangular tube (41) is respectively fixedly connected with two sliders (413); the outer walls of the two sliders (413) are respectively slidably connected with the inner walls of the limiting grooves (421).

8. The memory device for automatically adjusting the height and viewing angle of a podium according to claim 1, characterized in that: The placement assembly (8) comprises an L-shaped support plate (81), a positioning plate (82), a screw (83) and a knob (84); the top of the positioning plate (82) is fixedly connected to the bottom of the transverse surface of the L-shaped support plate (81) close to one end of the rectangular tube (41); a connecting hole (820) is opened in the middle of the positioning plate (82) and passes through the left and right sides; one end of the screw (83) is fixedly connected to one end of the knob (84); the outer wall of the other end of the screw (83) passes through the connecting hole (820) to the inside of the thread groove (412) and is threadedly connected therebetween.

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