阅读说明：本技术 一种具有录音功能的多媒体宣讲台 (Multimedia propaganda platform with recording function ) 是由 何敏鹰 王菁菁 于 2021-07-22 设计创作，主要内容包括：本发明公开了一种具有录音功能的多媒体宣讲台,包括主讲台、录音盒、承载盒、调节支撑组件和夹定板；录音盒和承载盒均设置在主讲台的顶端,承载盒的顶端开设有承载仓；调节支撑组件包括主动齿盘,主动齿盘的外壁啮合连接有从动齿盘,从动齿盘的一侧穿插连接有转动支撑杆,转动支撑杆的杆臂套接有拨动齿盘,拨动齿盘的背面啮合连接有升降杆；夹定板设置在升降杆的顶端,夹定板的顶端设置有两个夹定条,两个夹定条之间设置有显示器。本发明的有益效果是：本发明,设置有录音盒能够使宣讲台具有录音功能,同时设置了调节支撑组件,利用调节支撑组件能够灵活地对显示器的观看视角进行调节,整个调节过程十分的简单。(The invention discloses a multimedia Xuan podium with a recording function, which comprises a main podium, a recording box, a bearing box, an adjusting and supporting component and a clamping plate, wherein the main podium is provided with a sound-recording box; the recording box and the bearing box are both arranged at the top end of the main platform, and the top end of the bearing box is provided with a bearing bin; the adjusting and supporting assembly comprises a driving fluted disc, the outer wall of the driving fluted disc is meshed and connected with a driven fluted disc, one side of the driven fluted disc is inserted and connected with a rotating supporting rod, a lever arm of the rotating supporting rod is sleeved with a stirring fluted disc, and the back of the stirring fluted disc is meshed and connected with a lifting rod; the clamping plate is arranged on the top end of the lifting rod, two clamping strips are arranged on the top end of the clamping plate, and a display is arranged between the two clamping strips. The invention has the beneficial effects that: the invention is provided with the recording box, so that the explaining table has a recording function, and meanwhile, the adjusting and supporting component is arranged, so that the viewing angle of the display can be flexibly adjusted by utilizing the adjusting and supporting component, and the whole adjusting process is very simple.)

1. A multimedia platform with recording function, its characterized in that includes:

the device comprises a main podium (1), wherein the bottom end of the main podium (1) is fixedly connected with a supporting table (103), the bottom end of the supporting table (103) is provided with a main cabinet (2), and the part, close to the back, of the top end of the main podium (1) is provided with a protective baffle (102);

the recording box (3) is arranged at the top end of the main platform (1) and is positioned on one side of the front surface of the protective baffle (102);

the bearing box (4) is arranged at the top end of the main platform (1) and is positioned on the other side of the front face of the protective baffle (102), and a bearing bin (401) is arranged at the top end of the bearing box (4);

the adjusting and supporting assembly is arranged in the bearing bin (401), and comprises a driving fluted disc (5), the outer wall of the driving fluted disc (5) is meshed and connected with a driven fluted disc (503) on the front side, one side of the driven fluted disc (503) is connected with a rotating supporting rod (504) in an inserting manner, a toggle fluted disc (505) is sleeved on one side of the rotating supporting rod (504) on the driven fluted disc (503), and the back side of the toggle fluted disc (505) is meshed and connected with a lifting rod (6);

the clamping plate (7) is arranged at the top end of the lifting rod (6), two clamping strips (705) are arranged at the top end of the clamping plate (7), and a display (8) is arranged between the two clamping strips (705).

2. The multimedia podium with recording function as claimed in claim 1, wherein: the front of main podium (1) is provided with holds drawer (101), the top of main podium (1), and be located and bear box (4) and record and play and seted up the wiring hole between box (3), the front of mainframe (2) is provided with two guard gates (201), two guard gate (201) and the front that holds drawer (101) all are provided with the handle.

3. The multimedia podium with recording function as claimed in claim 1, wherein: the inner wall of one side of the bearing bin (401) is respectively provided with a control hole (402), a locking hole and a supporting hole, the locking hole is arranged between the control hole (402) and the supporting hole, and the inner walls of the two sides of the bearing bin (401) are provided with two supporting grooves (403) close to the front side.

4. The multimedia podium with recording function of claim 3, wherein: bear the inner wall at the storehouse (401) back and seted up lift spout (404), two support spout (405) have been seted up to the inner wall of lift spout (404) both sides, it has guide rod (406) to slide to alternate in lift spout (404), the both sides of guide rod (406), and be located two supporting slide block (407) of the one end fixedly connected with in lift spout (404), two supporting slide block (407) respectively with two support spout (405) slide and alternate the connection, the front of guide rod (406) and the middle part fixed connection at the lifter (6) back.

5. The multimedia podium with recording function as claimed in claim 1, wherein: the middle part fixedly connected with control lever (501) of initiative fluted disc (5) one side, control lever (501) rotate with control hole (402) and alternate the connection, one side of control lever (501), and be located extension fixedly connected with control and change (502), control is changeed (502) and has been seted up a plurality of interlude holes (506) to one side of wall, one of them interlude is connected with locking lever (507) in interlude hole (506), just locking lever (507) are run through interlude hole (506) and locking hole and alternate the connection.

6. The multimedia podium with recording function as claimed in claim 1, wherein: the positive outer wall of lifter (6) has been seted up a plurality of grooves (601) of stirring, the top fixedly connected with supporting seat (602) of lifter (6), the top of supporting seat (602), and run through openly and have been seted up and have been rotated the groove, it alternates between the inner wall of rotation groove both sides and is connected with dwang (603), the lever arm cover at dwang (603) middle part is equipped with swinging arms (604), the connecting hole has been seted up to one side at swinging arms (604) top.

7. The multimedia podium with recording function as claimed in claim 1, wherein: the back of clamp plate (7) is provided with connecting seat (709), the middle part of connecting seat (709) bottom is seted up there is rotatory mouthful, it has rotary rod (710) to rotate to alternate between the inner wall of rotatory mouthful both sides, rotary rod (710) and connecting hole rotate to alternate and are connected.

8. The multimedia podium with recording function as claimed in claim 1, wherein: two movable sliding grooves (701) are formed in the top end of the clamping plate (7), two guide sliding grooves (702) are formed in the inner walls of the two sides of each movable sliding groove (701), two extrusion springs (707) are arranged in the movable sliding grooves (701), and the four extrusion springs (707) are fixedly connected with the front side and the back side of the inner walls of the two movable sliding grooves (701) on the back side.

9. The multimedia podium with recording function as claimed in claim 1, wherein: the bottom end of each clamping strip (705) is fixedly connected with a movable sliding block (703), the four movable sliding blocks (703) are connected with two movable sliding grooves (701) in a sliding and penetrating mode respectively, the two sides of each movable sliding block (703) are fixedly connected with guide sliding blocks (704), the eight guide sliding blocks (704) are connected with four guide sliding grooves (702) in a sliding and penetrating mode respectively, the four movable sliding blocks (703) are fixedly connected with one opposite sides of four extrusion springs (707) respectively, and the two opposite sides of each clamping strip (705) are provided with sponge strips (706).

10. The multimedia podium with recording function of claim 8, wherein: the two sides of the clamping plate (7) are fixedly connected with two supporting columns (708) at one end close to the front side, and the two supporting columns (708) are respectively connected with the two supporting grooves (403) in a rotating and penetrating manner.

Technical Field

The invention relates to an adjustable multimedia platform, in particular to a multimedia platform with a recording function, and belongs to the technical field of platforms.

Background

Under present multimedia teaching's application, a lot of lecture classrooms can be furnished with the multimedia and declare the platform, utilize the multimedia to declare the platform and assist the lecture teaching can improve the efficiency of teaching and lecture by the very big degree ground, and the student of being convenient for more understands, have some lectures for the convenience video recording of imparting knowledge to students, the platform of declaring has the recording function.

Can be equipped with the computer on multimedia announcement platform, and the display generally all sets up the top at the main platform of speaking, the teacher of being convenient for controls and watches, the embedded display of current announcement platform sets up for fixed angle mostly, because different lecturers' height and eyesight all differ, the trouble that the angle of watching of consequently unable regulation display is then very, when the lecturer carries out the use, if watch the angle unsuitable, then cause the lecturer to need lie prone and carry out the lecture on the main platform of speaking, so both can make the lecturer feel very difficult when using, can influence the image of lecturer, the effect of whole lecture also can be discounted greatly so.

Disclosure of Invention

The present invention is directed to a multimedia platform with recording function to solve the above problems.

The invention achieves the above-mentioned purpose through the following technical scheme, a multimedia platform with recording function, including:

the lower part of the main platform is fixedly connected with a supporting platform, the lower part of the supporting platform is provided with a main cabinet, and the part of the upper part of the main platform, which is close to the back, is provided with a protective baffle;

the recording box is arranged at the top end of the main platform and is positioned on one side of the front surface of the protective baffle;

the bearing box is arranged at the top end of the main platform and is positioned on the other side of the front surface of the protective baffle, and a bearing bin is arranged at the top end of the bearing box;

the adjusting and supporting assembly is arranged in the bearing bin and comprises a driving fluted disc, a driven fluted disc is meshed and connected with the outer wall of the driving fluted disc on the front side, a rotating supporting rod is penetratingly connected to one side of the driven fluted disc, a stirring fluted disc is sleeved on one side of the rotating supporting rod, and a lifting rod is meshed and connected to the back side of the stirring fluted disc;

the clamping plate is arranged on the top end of the lifting rod, two clamping strips are arranged on the top end of the clamping plate, and a display is arranged between the two clamping strips.

Preferably, the front of main podium is provided with and holds the drawer, the top of main podium just is located and bears the weight of and has seted up the wiring hole between box and the recording box, the front of mainframe cabinet is provided with two guard gates, two the guard gate all is provided with the handle with the front that holds the drawer.

Preferably, the inner wall of one side of the bearing bin is respectively provided with a control hole, a locking hole and a supporting hole, the locking hole is arranged between the control hole and the supporting hole, and the inner walls of the two sides of the bearing bin are provided with two supporting grooves close to the front side.

Preferably, the inner wall that bears the weight of the storehouse back has seted up the lift spout, two support spouts have been seted up to the inner wall of lift spout both sides, the sliding interlude is connected with the guide bar in the lift spout, the both sides of guide bar, and be located two support sliders of the one end fixedly connected with in the lift spout, two support slider respectively with two support spout sliding interlude connections, the front of guide bar and the middle part fixed connection at the lifter back.

Preferably, the middle part of one side of the driving toothed disc is fixedly connected with a control rod, the control rod is connected with the control hole in a rotating and penetrating manner, one side of the control rod is fixedly connected with a control rotating handle in an extending manner, one side of the wall of the control rotating handle is provided with a plurality of penetrating holes, one of the penetrating holes is connected with a locking rod in a penetrating manner, and the locking rod penetrates through the penetrating holes and is connected with the locking holes in a penetrating manner.

Preferably, a plurality of grooves of stirring have been seted up to the positive outer wall of lifter, the top fixedly connected with supporting seat of lifter, the top of supporting seat just runs through openly and has seted up the rotation groove, it alternates to be connected with the dwang to rotate between the groove both sides inner wall, the lever arm cover at dwang middle part is equipped with the swinging arms, the connecting hole has been seted up to one side at swinging arms top.

Preferably, the back of the clamping plate is provided with a connecting seat, a rotating opening is formed in the middle of the bottom end of the connecting seat, a rotating rod is connected between the inner walls of two sides of the rotating opening in a rotating and inserting mode, and the rotating rod is connected with the connecting hole in a rotating and inserting mode.

Preferably, two movable sliding chutes are formed in the top end of the clamping plate, two guide sliding chutes and two extrusion springs are arranged on the inner walls of the two sides of each movable sliding chute, and one side, back to back, of each extrusion spring is fixedly connected with the front side and the back side of each movable sliding chute.

Preferably, two the equal fixedly connected with in bottom that presss from both sides the strip removes the slider, four remove the slider respectively with two removal spout sliding alternate connection, four the equal fixedly connected with direction slider in both sides of removing the slider, eight the direction slider respectively with four direction spout sliding alternate connection, four remove one side that the slider was carried on the back mutually respectively with four extrusion spring one side fixed connection in opposite directions, two it all is provided with the sponge strip to press from both sides one side in opposite directions of deciding the strip.

Preferably, the two sides of the clamping plate are fixedly connected with two supporting columns close to the front end, and the two supporting columns are respectively connected with the two supporting grooves in a rotating and penetrating manner.

The invention has the beneficial effects that: 1. according to the invention, the voice box is arranged, so that the explaining table has a voice recording function, the adjusting and supporting assembly is arranged, the viewing angle of the display can be flexibly adjusted by utilizing the adjusting and supporting assembly, the whole adjusting process is very simple, the lifting rod vertically moves up and down only by rotating the control rotating handle under the matching of the driving fluted disc, the driven fluted disc and the shifting fluted disc, and then the clamping plate supports the display to adjust the viewing angle under the driving of the lifting rod.

2. According to the invention, the bearing box is provided with the locking hole, the handle wall of the control rotating handle is provided with the plurality of the through holes, the through holes and the locking hole are connected in an inserting way through the locking rod, the control rotating handle can be effectively locked, so that the control rotating handle cannot rotate autonomously, and the adjusted viewing angle can be locked.

3. According to the invention, a series of designs are carried out on the top end of the clamping plate, the moving sliding groove and the supporting sliding groove are formed, and under the matching of the moving sliding block and the supporting sliding block, the two clamping strips can only move in the horizontal direction on the top end of the clamping plate, meanwhile, the clamping strength of the clamping strips on the display is enhanced by the four extrusion springs, and the sponge strips are arranged on the opposite sides of the two clamping strips for contact protection, so that the display screen is prevented from being damaged due to the long-time high-strength extrusion on the display.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the connection of the carrying case, clamping plate and adjustment support assembly of the present invention;

FIG. 3 is a schematic view of the structure of the carrying case and the adjusting support assembly of the present invention;

FIG. 4 is a schematic structural diagram of the carrying case of the present invention;

FIG. 5 is a schematic view of the structure of the adjustable support assembly of the present invention;

FIG. 6 is an enlarged view of the structure at A in FIG. 3 according to the present invention;

FIG. 7 is an enlarged view of the structure at B in FIG. 2 according to the present invention;

FIG. 8 is a schematic view of the structure of the clamping plate of the present invention;

FIG. 9 is an enlarged view of the structure of FIG. 8 at C according to the present invention;

fig. 10 is a bottom view of the clamping plate of the present invention.

In the figure: 1. a main platform; 101. a containing drawer; 102. a protective baffle; 103. a support table; 2. a main cabinet; 201. a protective door; 3. a recording box; 4. a carrying box; 401. a load bearing bin; 402. a control hole; 403. a support groove; 404. a lifting chute; 405. a support chute; 406. a guide rod; 407. a support slide block; 5. a driving fluted disc; 501. a control lever; 502. controlling the rotating handle; 503. a driven fluted disc; 504. rotating the support rod; 505. poking the fluted disc; 506. inserting holes; 507. a locking lever; 6. a lifting rod; 601. a poking groove; 602. a supporting seat; 603. rotating the rod; 604. a swing lever; 7. clamping a plate; 701. a moving chute; 702. a guide chute; 703. moving the slide block; 704. a guide slider; 705. clamping the fixing strip; 706. a sponge strip; 707. a compression spring; 708. a support pillar; 709. a connecting seat; 710. rotating the rod; 8. a display.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-10, a multimedia platform with recording function includes:

the device comprises a main platform 1, wherein a support table 103 is fixedly connected to the bottom end of the main platform 1, a main cabinet 2 is arranged at the bottom end of the support table 103, a protective baffle 102 is arranged at the top end of the main platform 1 and close to the back of the main platform, and the protective baffle 102 is in a semi-surrounding mode and used for shielding and protecting the part on the back of the top end of the main platform 1;

the front side of the main platform 1 is provided with a holding drawer 101, the top end of the main platform 1 is provided with a wiring hole between the bearing box 4 and the recording box 3, the front side of the main cabinet 2 is provided with two protective doors 201, and the two protective doors 201 and the front side of the holding drawer 101 are both provided with handles;

two protection doors 201 all articulate the front at mainframe 2 through the hinge, and the wiring hole can make things convenient for to be connected between display 8 and the host computer, can more conveniently hold opening and closing of drawer 101 and protection door 201 through the handle, and can set up the safety lock to holding drawer 101 and protection door 201 as required.

The recording box 3 is arranged at the top end of the main platform 1 and is positioned on one side of the front face of the protective baffle 102, a sound receiving port is formed in the top end of the recording box 3, a dust screen is arranged at the top end of the sound receiving port, an adjusting knob, a control key and a microphone socket are arranged on the front face of the recording box 3, and the recording box is a multifunctional recording device in the prior art;

the bearing box 4 is arranged at the top end of the main platform 1 and is positioned on the other side of the front face of the protective baffle 102, a bearing bin 401 is arranged at the top end of the bearing box 4, the bearing box 4 is subjected to semi-surrounding protection by the protective baffle 102, and the front face of the bearing bin 401 is in an open design;

the inner wall of one side of the bearing bin 401 is respectively provided with a control hole 402, a locking hole and a supporting hole, the locking hole is arranged between the control hole 402 and the supporting hole, the inner walls of the two sides of the bearing bin 401 are close to the front side and provided with two supporting grooves 403, and the control hole 402, the locking hole and the supporting hole are arranged on the inner wall of one side of the bearing bin 401 and close to the back side.

The adjusting and supporting assembly is arranged in the bearing bin 401 and comprises a driving fluted disc 5, a driven fluted disc 503 is meshed and connected to the outer wall of the driving fluted disc 5 and positioned on the front side, a rotating supporting rod 504 is penetratingly connected to one side of the driven fluted disc 503, a lever arm of the rotating supporting rod 504 is sleeved on one side of the driven fluted disc 503 and is connected with a shifting fluted disc 505, and a lifting rod 6 is meshed and connected to the back side of the shifting fluted disc 505;

the driving fluted disc 5, the driven fluted disc 503 and the poking fluted disc 505 belong to an adjusting part of an adjusting support assembly, the lifting rod 6 is a supporting part of the adjusting support assembly, and the supporting part is controlled by the adjusting part to move in the vertical direction in the bearing bin 401;

one end of the rotating support rod 504 is movably inserted and connected with the horizontal idle shaft, and two sides of the inner wall of the bearing bin 401 are provided with support holes corresponding to the support holes, and the support holes are used for supporting the other end of the rotating support rod 504, so that the rotating support rod 504 rotates under the support of the two support holes;

driven fluted disc 503 and stir fluted disc 505 all firmly cup joint on the lever arm of rotation support rod 504, and so three can carry out synchronous rotation.

The middle part of one side of the driving fluted disc 5 is fixedly connected with a control rod 501, the control rod 501 is rotatably and alternately connected with a control hole 402, one side of the control rod 501 is fixedly connected with a control rotating handle 502 at the extending end, one side of the wall of the control rotating handle 502 is provided with a plurality of through holes 506, one through hole 506 is internally and alternately connected with a locking rod 507, and the locking rod 507 penetrates through the through hole 506 and is alternately connected with the locking hole;

the extending end of the control rod 501 penetrates through the control hole 402 and is fixedly connected with the middle part of one side of the control rotating handle 502, a plurality of through holes 506 are uniformly distributed and arranged on one side of the wall of the control rotating handle 502, the arrangement diameter of the through holes 506 is the same as that of the locking holes, and the diameter of the outer wall of the locking rod 507 is the same as that of the through holes 506 and the locking holes.

The clamping plate 7 is arranged at the top end of the lifting rod 6, two clamping strips 705 are arranged at the top end of the clamping plate 7, a display 8 is arranged between the two clamping strips 705, and the length of the two clamping strips 705 is the same as the width of the clamping plate 7;

a connecting seat 709 is arranged on the back surface of the clamping plate 7, a rotating opening is formed in the middle of the bottom end of the connecting seat 709, a rotating rod 710 is rotatably and alternately connected between the inner walls of two sides of the rotating opening, and the rotating rod 710 is rotatably and alternately connected with the connecting hole;

the top of connecting seat 709 and the middle part of clamping plate 7 bottom, and be close to one side fixed connection at the back, the outer wall diameter of rotary rod 710 is the same with the diameter of seting up of connecting hole, and the connection face between them is all smooth for swing lever 604 can be through the connecting hole rotatory swing under rotary rod 710's support guide.

Two supporting columns 708 are fixedly connected to two sides of the clamping plate 7 and located at one end close to the front side, the two supporting columns 708 are respectively in rotating penetrating connection with the two supporting grooves 403, the supporting grooves 403 are circular openings, the diameters of the outer walls of the supporting columns 708 are the same as the diameters of the supporting grooves 403, and the clamping plate 7 rotates by using the two supporting columns 708 as pivots through the supporting columns 708 and the supporting grooves 403.

As a technical optimization scheme of the invention, the inner wall of the back of the bearing bin 401 is provided with a lifting chute 404, the inner walls of the two sides of the lifting chute 404 are provided with two supporting chutes 405, the lifting chute 404 is slidably inserted and connected with a guide rod 406, the two sides of the guide rod 406 are provided, and one end of the lifting chute 404 is fixedly connected with two supporting sliders 407, the two supporting sliders 407 are respectively slidably inserted and connected with the two supporting chutes 405, and the front of the guide rod 406 is fixedly connected with the middle part of the back of the lifting rod 6;

the lifting chute 404 is arranged in the middle of the inner wall of the back of the bearing bin 401, the two supporting chutes 405 are symmetrically arranged in the middle of the inner walls of the two sides of the lifting chute 404 in the horizontal center direction, the width of the guide rod 406 is the same as the arrangement width of the lifting chute 404, the length and the width of the supporting slide block 407 are the same as the arrangement depth and the width of the supporting chute 405, and the guide rod 406 is utilized to pull the lifting rod 6 to move only in the vertical direction.

As a technical optimization scheme of the invention, the outer wall of the front side of the lifting rod 6 is provided with a plurality of toggle grooves 601, the top end of the lifting rod 6 is fixedly connected with a supporting seat 602, the top end of the supporting seat 602 penetrates through the front side and is provided with a rotating groove, rotating rods 603 are rotatably and alternately connected between the inner walls of the two sides of the rotating groove, a lever arm in the middle of the rotating rods 603 is sleeved with a swinging rod 604, and one side of the top of the swinging rod 604 is provided with a connecting hole;

a plurality of toggle grooves 601 are vertically and uniformly arranged on the front surface of the lifting rod 6, the distance and the arrangement width between the toggle grooves 601 are meshed with the outer wall teeth of the toggle fluted disc 505, the swing rod 604 can swing in the rotary groove under the support of the rotary rod 603, and the swing range is ninety-degree interval between the front surface and the top end range of the support seat 602.

As a technical optimization scheme of the invention, the top end of the clamping plate 7 is provided with two moving chutes 701, the inner walls of the two sides of the two moving chutes 701 are provided with two guide chutes 702, two extrusion springs 707 are arranged in the two moving chutes 701, and the opposite sides of the four extrusion springs 707 are fixedly connected with the inner walls of the front and back sides of the two moving chutes 701 respectively;

the two moving chutes 701 are arranged horizontally and centrally symmetrically, and the two guide chutes 702 in the same moving chute 701 are arranged horizontally and centrally symmetrically on the inner walls of the two sides of the moving chute 701.

The bottom ends of the two clamping strips 705 are fixedly connected with moving sliding blocks 703, the four moving sliding blocks 703 are respectively connected with the two moving sliding chutes 701 in a sliding and penetrating manner, two sides of the four moving sliding blocks 703 are respectively and fixedly connected with guide sliding blocks 704, the eight guide sliding blocks 704 are respectively connected with the four guide sliding chutes 702 in a sliding and penetrating manner, the opposite sides of the four moving sliding blocks 703 are respectively and fixedly connected with the opposite sides of the four extrusion springs 707, and the opposite sides of the two clamping strips 705 are respectively provided with sponge strips 706;

the length and the width of the movable sliding block 703 are the same as the opening depth and the width of the movable sliding chute 701, the length and the width of the guide sliding block 704 are the same as the opening depth and the width of the guide sliding chute 702, and the two sponge strips 706 perform contact protection when the two clamping strips 705 clamp the display 8, so that the screen of the display 8 is prevented from being damaged by pressure.

When the invention is used, referring to fig. 2, 8, 9 to 10, the display 8 is installed at first;

the first step of operation is implemented, firstly, the two clamping strips 705 are pulled towards opposite directions, the two clamping strips 705 respectively drive the two movable sliders 703 at the bottom ends to move synchronously, and the four movable sliders 703 gradually press and compress the four extrusion springs 707 in the moving process;

implementing a second step of operation, after the distance between the two clamping bars 705 can accommodate the display 8, embedding the display screen part of the display 8 between the two clamping bars 705 upwards;

then the pulling force on the two clamping bars 705 is released, the four pushing springs 707 respectively push the four moving sliders 703 by restoring force, the four moving sliders 703 drive the two clamping bars 705 to move towards each other, and the two clamping bars 705 clamp and fix the display 8.

Refer to fig. 1;

when using the platform of a long-pending lecture to carry out the multimedia propaganda and saying supplementaryly, the lecturer can carry out projection control through display 8, will say the content and throw the screen to the light curtain on, then restart the control key of recording box 3 and carry out real-time recording, can be connected microphone and recording simultaneously, promote the effect of recording.

Referring to fig. 2 to 8, the viewing angle of the display 8 is adjusted;

when the viewing tilt angle of the display 8 needs to be increased;

carrying out a first step of operation, pulling out the locking rod 507 from the locking hole in a direction away from the carrying box 4 (at this time, whether the locking rod 507 is pulled out from the insertion hole 506 or not can be determined according to the use requirement, and if the locking rod 507 is not pulled out, the locking rod 507 can be used as a crank);

implementing the second step of operation, rotating the control rotating handle 502 clockwise, wherein the control rotating handle 502 drives the driving fluted disc 5 to rotate clockwise through the control rod 501, the driven fluted disc 503 rotates counterclockwise along with the driving fluted disc 5 under the meshing linkage, the driven fluted disc 503 drives the rotation supporting rod 504 to rotate counterclockwise synchronously, the rotation supporting rod 504 drives the toggle fluted disc 505 to rotate synchronously, and the toggle fluted disc 505 moves vertically upwards under the action of the toggle groove 601;

the lifting rod 6 drives the supporting seat 602 to move upwards, and simultaneously lifts the swinging rod 604 upwards, and the swinging rod 604 needs to counteract the downward pressure from the clamping plate 7 while moving upwards, so that the swinging rod can move upwards while rotating;

one side of the bottom end of the clamping plate 7 is subjected to upward jacking force of the swinging rod 604, and is turned upwards to rotate at the receiving side by taking the two supporting columns 708 as rotating fulcrums, so that the viewing angle of the display 8 is increased under the support of the clamping plate 7;

and implementing the third step, continuously rotating the control rotating handle 502 clockwise until the display 8 is adjusted to a comfortable viewing angle, and then passing the locking rod 507 through the through hole 506 and then into the locking hole to lock the control rotating handle 502, at which time the viewing angle of the display 8 is also locked.

When the visual angle is watched in needs reducing, only need carry out anticlockwise rotation control and change handle 502 for whole regulation supporting component carries out reverse operation as above-mentioned condition, makes 6 vertical directions of lifter remove, then drives the clamping plate 7 atress side and carries out decurrent upset can.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.