CN219515615U

CN219515615U - Lectern display screen adjusting structure and lifting lectern thereof

Info

Publication number: CN219515615U
Application number: CN202222839111.4U
Authority: CN
Inventors: 黄健; 胡为民; 杨伟华
Original assignee: Hangzhou Maijie Education Technology Co ltd
Current assignee: Hangzhou Maijie Education Technology Co ltd
Priority date: 2022-10-26
Filing date: 2022-10-26
Publication date: 2023-08-15
Anticipated expiration: 2032-10-26

Abstract

The utility model relates to a lectern display screen adjusting structure and a lifting lectern thereof, which comprises: the adjusting device comprises a sliding driving unit for driving at least one display piece to slide; the support pieces are arranged at the lower end of the sliding driving unit; the display piece is arranged on the sliding driving unit and slides back and forth along with the sliding driving unit; the sliding driving unit is supported and installed on the plane of the teacher desk plate through the supporting piece, and the distance between the teacher desk plate and the sliding driving unit is increased; the display screen of the lectern has the advantages of avoiding inconvenient adjustment and larger resistance during adjustment in the prior art.

Description

Lectern display screen adjusting structure and lifting lectern thereof

Technical Field

The utility model relates to the technical field of teaching tools, in particular to a lectern display screen adjusting structure and a lifting lectern thereof.

Background

In modern information society, a teacher's desk will be equipped with a display screen to facilitate the user's presentation or modification of courseware content.

The existing display screen is directly placed or fixed on the teacher desk board, is single in structure, cannot be suitable for users with different heights and body types, is usually directly moved when people need to adjust the position of the display screen in use, easily causes the display screen to be unstable and topple over, and is large in resistance when moving.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides a lectern display screen adjusting structure and a lifting lectern thereof.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a lectern display screen adjustment structure, comprising: the adjusting device comprises a sliding driving unit for driving at least one display piece to slide; the support pieces are arranged at the lower end of the sliding driving unit; the display piece is arranged on the sliding driving unit and slides back and forth along with the sliding driving unit; the sliding driving unit is supported and installed on the plane of the teacher desk board through the supporting piece, and the distance between the teacher desk board and the sliding driving unit is increased.

Preferably, the slip drive unit comprises at least one slip drive assembly and at least one positioning assembly; the sliding driving assembly is provided with the display piece; the positioning assembly is arranged between the sliding driving assembly and the teacher desk plate; when the sliding driving assembly is not subjected to external force, the positioning assembly limits the movement of the sliding driving assembly.

Preferably, the slip drive assembly comprises a mounting plate, a slip member and a guide member; the display piece is arranged on the mounting plate, a storage space is arranged on the mounting plate, and an opening of the storage space faces to the sliding direction of the mounting plate; the sliding piece is arranged on the mounting plate; the guide piece is arranged on the teacher desk board.

Preferably, the positioning assembly comprises a positioning sheet and a positioning rod; the positioning sheets are arranged in the space, the positioning sheets are fixedly connected with the teacher desk plate, and the positioning rods are arranged on the mounting plate; the locating plate is provided with a plurality of locating holes, the lower end of the locating rod is provided with elastic wave beads matched with the locating holes, and the height of the elastic wave beads is not less than the depth of the locating holes.

Preferably, the adjusting device further comprises an angle adjusting unit, wherein the angle adjusting unit is arranged on the mounting plate and slides synchronously with the mounting plate; the angle adjusting unit comprises a hinge seat and a telescopic driving piece; the hinge seat is fixedly arranged on the mounting plate and is in rotary fit connection with one end of the display piece; the telescopic driving piece is arranged on the mounting plate and drives the display piece to rotate along the central axis of the hinging seat.

Preferably, the telescopic driving piece comprises a telescopic end and a fixed end; the telescopic end is connected with the display piece in a rotating fit manner, and the fixed end is connected with the mounting plate in a rotating fit manner.

Preferably, a protection plate assembly is arranged between the display piece and the mounting plate; the shielding plate assembly shields the angle adjusting unit, and the shielding plate assembly stretches out and draws back along with the overturning of the display piece.

Preferably, the guard plate assembly comprises a first guard plate and a second guard plate; the first protection plate is fixedly connected with the display piece, and the second protection plate is fixedly connected with the mounting plate; and a buffer gap is arranged between the first protection plate and the second protection plate.

Preferably, the lifting lectern with the lectern display screen adjusting structure comprises a display piece, wherein the display piece comprises a mounting frame, at least one touch display screen arranged on the mounting frame and at least one revealing screen.

The lifting table body is connected with the fixed support through the telescopic rod; the lifting table body comprises a teacher table plate and a plurality of detachable shielding plates, wherein the detachable shielding plates are arranged around the side face of the lifting table body; the display piece is arranged on the upper end surface of the teacher desk through an adjusting device; the upper end of the teacher desk board is provided with a mounting desk board, and the upper end of the mounting desk board is provided with a chute for mounting the display piece; the lower end of the teacher desk board is provided with an electric box, the display piece is electrically connected with the electric box through a wire, and the electric box is also connected with a power grid through a wire; the teacher's desk board is also provided with a water cup holder.

Compared with the prior art, the utility model has the beneficial effects that: according to the display screen adjusting structure of the lectern and the lifting lectern thereof, provided in the technical scheme, the display piece is convenient to adjust by utilizing the arrangement of the sliding driving unit; and set up a plurality of support pieces between the plane of lectern table and the drive unit that slides, can increase the interval between end face and the lectern table under the drive unit that slides on the one hand, and then can enough realize the stable installation to the display piece, can reduce the area of contact between drive unit and the lectern table that slides again, avoid area of contact too big problem that leads to the removal resistance, on the other hand support piece's setting can also support to whole drive unit that slides, keep its stability, avoid the drive unit that slides when the atress is too big, influence its effect that slides, or make the drive unit that slides fall on the lectern table.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic front view of a display screen adjusting structure of a desk.

Fig. 2 is an enlarged view of the position a in fig. 1.

Fig. 3 is a schematic view of a display screen adjusting structure of a desk in a cut-away view at a position of a positioning assembly.

Fig. 4 is an enlarged view of the position B in fig. 3.

Fig. 5 is a schematic drawing of a sectional view of the display screen adjusting structure of the lectern in the angle adjusting unit.

Fig. 6 is a schematic view of the display screen adjusting structure of the desk.

Fig. 7 is a schematic view of a lifting teacher desk.

Fig. 8 is a schematic view of a lifting lectern in section at a wire receiving member position.

Reference numerals illustrate:

1. lifting the table body; 10. a display member; 101. a mounting frame; 102. touching the display screen; 103. a revealing screen; 11. a teacher's desk plate; 111. an operation groove; 12. a fixed support; 121. a support base plate; 122. tilting the reinforcing plate; 13. a telescopic rod; 131. a protective cover; 132. a lifting control console; 14. a removable shutter; 15. installing a table plate; 16. an electric box; 17. a water cup holder;

2. a slip driving unit; 21. a slip drive assembly; 211. a mounting plate; 2111. a storage space; 2112. a guide channel; 2113. a through groove; 2114. a connecting seat; 2115. a slip drive console; 2116. an organ plate; 212. a sliding member; 213. a guide member; 22. a positioning assembly; 221. a positioning sheet; 2211. positioning holes; 222. a positioning rod; 2221. elastic wave beads;

3. a support;

4. an angle adjusting unit; 41. a hinge base; 42. a telescopic driving member; 421. a telescoping end; 422. a fixed end;

5. a fender assembly; 51. a first protection plate; 52. a second protection plate; 53. a buffer slit;

6. a wire receiving member; 61. a drag chain; 62. a first wiring assembly; 621. a first wiring groove; 622. a guide groove; 623. a cover plate; 63. a second wiring assembly; 631. a second wiring groove; 632. and a baffle.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 and fig. 2, an embodiment of the present utility model provides a display screen adjusting structure of a lectern, including: the adjusting device comprises a sliding driving unit 2 for driving at least one display piece 10 to slide, wherein the display piece 10 is arranged on the sliding driving unit 2 and slides back and forth along with the sliding driving unit 2; the number of the display pieces 10 in the device can be 1, two or more, the sliding driving units 2 can be arranged in one-to-one correspondence with the display pieces 10, and further different display pieces 10 are driven by different sliding driving units 2, so that the different display pieces 10 can be adjusted independently; a plurality of display elements 10 can be controlled to synchronously slide by using one sliding driving unit 2; in order to reduce the resistance in the sliding process of the sliding driving unit 2 for driving the display piece 10, the adjusting structure further comprises a plurality of supporting pieces 3, wherein the supporting pieces 3 are arranged at the lower end of the sliding driving unit 2, the sliding driving unit 2 is supported and installed on the plane of the teacher desk 11 through the supporting pieces 3, and the distance between the teacher desk 11 and the sliding driving unit 2 is increased; the supporting piece 3 in the device can be arranged into structures such as a supporting plate, a supporting rod, a supporting roller and the like, and the roller structure is preferentially supported, so that the contact surface between the sliding driving unit 2 and the teacher desk 11 is smaller while the sliding driving unit is effectively supported; when the supporting piece 3 is set as a roller, the roller is rotatably arranged on the sliding driving unit 2, and rotates along with the sliding of the roller, so that friction force is further reduced, and the roller can be fixedly arranged on the sliding driving unit 2 through a conventional fastening structure such as a screw or a pin, so that the supporting effect on the sliding driving unit 2 is better; the support 3 can be symmetrically arranged in two rows about the sliding driving unit 2, and each row is provided with 2-4 support members, so that the balance of the sliding driving unit 2 is ensured.

In order to enable the sliding driving unit 2 to drive the display piece 10 to slide and keep the display piece 10 stably placed when the sliding driving unit 2 is not subjected to external force, the sliding driving unit 2 in the device comprises at least one sliding driving component 21 and at least one positioning component 22; the display piece 10 is arranged on the sliding driving assembly 21; the positioning component 22 is arranged between the sliding driving component 21 and the teacher desk 11; when the sliding driving assembly 21 is not subjected to external force, the positioning assembly 22 limits the movement of the sliding driving assembly 21.

As shown in fig. 2 and 3, the slip drive assembly 21 includes a mounting plate 211, a slip 212, and a guide 213; the display element 10 is mounted on the mounting plate 211, and in order to facilitate the mounting of the mouse, keyboard and other structures, a storage space 2111 is provided on the mounting plate 211, and the opening of the storage space 2111 faces the sliding direction of the mounting plate 211; the sliding piece 212 is arranged on the mounting plate 211; the guide 213 is provided on the desk board 11.

In the device, the mounting plate 211, the sliding piece 212, the guide piece 213 and the supporting piece 3 are arranged according to the actual use requirement, so that the mounting plate 211, the sliding piece 212 and the guide piece 213 are beneficial to driving the display piece 10 to stably slide, in one embodiment, the sliding piece 212 is symmetrically arranged at two sides of the mounting plate 211, the supporting piece 3 is arranged at the lower side of the mounting plate 211 and is arranged at a position close to the sliding piece 212, the supporting force applied to the mounting plate 211 by the supporting piece 3 is prevented from being too far away from the connecting position of the sliding piece 212 and the guide piece 213, the supporting force applied to the mounting plate 211 by the supporting piece 3 can be better transferred to the connecting position of the sliding piece 212 and the guide piece 213, and even if a storage space 2111 is formed on the mounting plate 211, the use of the supporting piece 3, the sliding piece 212 and the guide piece 213 can not be influenced by slight deformation after the mounting plate 211 is stressed, in other embodiments, the sliding piece 212 can be arranged below the mounting plate 211; the mounting plate 211 can be driven by an electric pushing system or by manual power, and when the electric pushing system is driven, the electric push rod is connected with the mounting plate 211, and the sliding driving console 2115 electrically connected with the electric push rod is used for controlling sliding.

In the device, the sliding piece 212 and the guiding piece 213 can be arranged in various matching structures, so that the mounting plate 211 can slide relative to the teacher desk 11.

In one embodiment, the guide member 213 is configured as a guide groove plate with a guide groove, the sliding member 212 is configured as a sliding frame with a hollow groove, and the side surface of the sliding frame is attached to the guide groove of the guide groove plate, and the guide member 213 and the sliding member 212 are configured as a frame structure in the design, so that the consumption materials of the guide member 213 and the sliding member 212 are reduced, the weight of the structure is reduced, and the friction force is further reduced.

In other embodiments, the guide 213 may be configured as a guide rod, and the slider 212 may be configured as a sliding sleeve that fits over the guide 213.

As shown in fig. 3 and 4, the positioning assembly 22 includes a positioning piece 221 and a positioning rod 222; wherein, the positioning pieces 221 are arranged in the interval, the positioning pieces 221 are fixedly connected with the teacher desk 11, the positioning rods 222 are arranged on the mounting plate 211, the positioning pieces 221 are arranged along the sliding direction of the mounting plate 211, and the positioning pieces 221 and the teacher desk 11 can be fixedly connected through structures such as bolts, screws, pins and the like; the positioning plate 221 is provided with a plurality of positioning holes 2211, the positioning holes 2211 can be distributed along the positioning plate 221, the lower end of the positioning rod 222 is provided with elastic wave beads 2221 matched with the positioning holes 2211, in the device, the positioning rod 222 is connected with the mounting plate 211 through threads, the depth of the lower end of the elastic wave beads 2221 inserted into the positioning holes 2211 can be changed by rotating the positioning rod 222, the height of the elastic wave beads 2221 is not smaller than the depth of the positioning holes 2211, and the positioning holes 2211 can not limit the movement of the elastic wave beads 2221 when the mounting plate 211 is pulled; the positioning rod 222 and the elastic wave bead 2221 are connected into a structure, and when the elastic wave bead 2221 is installed, the elastic wave bead can be installed from the lower end of the installation plate 211, or a guide channel 2112 is arranged on the installation plate 211, so that the structure of the positioning rod 222 and the elastic wave bead 2221 is screwed after falling from the guide channel 2112.

Further, the elastic beads 2221 may be configured in various structures, so that when the mounting plate 211 is pulled, the elastic beads 2221 are separated from the positioning holes 2211 and slide synchronously with the mounting plate 211, and when the mounting plate 211 is not stressed, the elastic beads 2221 sink into the positioning holes 2211.

In one embodiment, the elastic wave bead 2221 may be configured as a steel ball, where the upper end of the steel ball is connected to the lower end of the positioning rod 222 through a spring or a shrapnel, so that the elastic wave bead 2221 can extend into the positioning hole 2211 to perform a positioning function, and does not affect the movement of the mounting plate 211.

In other embodiments, the elastomeric beads 2221 may themselves be made from an elastomeric material (e.g., rubber).

In order to realize the adjustment of the angle of the display element 10, the adjusting device further comprises an angle adjusting unit 4, wherein the angle adjusting unit 4 is arranged on the mounting plate 211 and synchronously slides along with the mounting plate 211, and the design enables the mounting plate 211 to realize the angle adjustment of the display element 10 no matter what position the mounting plate 211 slides to. As shown in fig. 5, the angle adjusting unit 4 includes a hinge seat 41, a telescopic driving piece 42; the hinge seat 41 is fixedly arranged on the mounting plate 211 and is in rotary fit connection with one end of the display piece 10; the telescopic driving member 42 is disposed on the mounting plate 211 and drives the display member 10 to rotate along the central axis of the hinge base 41.

The telescopic driving piece 42 comprises a telescopic end 421 and a fixed end 422; the telescopic end 421 is connected with the display element 10 in a rotating fit manner, the fixed end 422 is connected with the mounting plate 211 in a rotating fit manner, as shown in fig. 5 and 6, the fixed end 422 can be directly installed on the mounting plate 211 in a rotating manner through a hinge shaft, a through groove 2113 can be formed in the mounting plate 211, a plurality of rods are fixedly connected to the lower end of the through groove 2113 to form a connecting seat 2114, the connecting seat 2114 can penetrate through the running groove 111 on the desk plate 11 or extend into the desk plate 11, further, the situation that the angle adjusting unit 4 extends out of the upper end of the desk plate 11 too much and influences the mounting of the mounting plate 211 and the display element 10 is avoided, when the running groove 111 is arranged to penetrate through the groove 2113, an organ plate 2116 can be arranged between the connecting seat 2114 and one side of the desk plate 11, two ends of the organ plate 2116 are respectively fixedly connected with the connecting seat 2114 and the desk plate 11, so that the telescopic driving element 42 can block the lower end of the running groove 111 along with the mounting plate 211, the situation that the inner structure of the desk can be directly seen from the upper end, the influence on the appearance and the falling of articles can be avoided, and the situation that the articles can not be taken down.

In order to avoid that foreign matters are blocked or an operator is blocked in the telescopic process of the angle adjusting unit 4, a protection plate assembly 5 is arranged between the display piece 10 and the mounting plate 211; the shielding plate assembly 5 shields the angle adjusting unit 4, and the shielding plate assembly 5 is telescopic as the display 10 is turned over.

As shown in fig. 5, the shielding plate assembly 5 includes a first shielding plate 51, a second shielding plate 52; the first protection plate 51 is fixedly connected with the display piece 10, and the second protection plate 52 is fixedly connected with the mounting plate 211; the first protection plate 51 is disposed at the lower end of the display member 10, and is disposed along the edge of the display member 10, which is not connected to the hinge seat 41, the second protection plate 52 is disposed at the upper end of the mounting plate 211, and the shape of the second protection plate 52 is consistent with that of the first protection plate 51, i.e. the first protection plate 51 translates outwards for a certain distance to be overlapped with the second protection plate 52; in order to reduce the impact force generated in the angle adjustment process of the display piece 10, a buffer gap 53 is arranged between the first protection plate 51 and the second protection plate 52, and the air flow between the buffer gaps 53 is buffered by utilizing the relative sliding process of the first protection plate 51 and the second protection plate 52, so that the protection of the display piece 10 is more facilitated.

As shown in fig. 7 and 8, the present embodiment provides a lifting teacher's desk with the display screen adjusting structure, which includes a lifting desk body 1, a fixed support 12, and a telescopic rod 13 connecting the lifting desk body 1 and the fixed support 12, wherein the telescopic rod 13 can be an electric push rod or an air cylinder, and a protective cover 131 can be arranged on the periphery of the telescopic rod 13 to prevent the telescopic rod 13 from being clamped to an external structure or foreign matters and affecting the service life thereof; the fixed support 12 comprises a plurality of spliced supporting bottom plates 121, the supporting bottom plates 121 are connected with the fixed ends of the telescopic rods 13 in a threaded connection mode, inclined reinforcing plates 122 are arranged on the periphery of the supporting bottom plates 121, and the arrangement of the inclined reinforcing plates 122 is beneficial to increasing the supporting effect of the supporting bottom plates 121, so that the lifting teacher desk is more stable; the telescopic rod 13 is controlled to stretch out and draw back by the lifting control console 132, the lifting control console 132 is arranged on one side of the lifting table body 1, the lifting control console 132 comprises a lifting button and a descending button, and the telescopic rod 13 is controlled to stretch out and draw back by pressing the lifting button or the descending button.

The lifting table body 1 comprises a lectern table 11 and a plurality of detachable shielding plates 14, wherein the detachable shielding plates 14 are arranged around the side face of the lifting table body 1, so that the whole lifting table body 1 is protected, the detachable shielding plates 14 can be arranged as a whole plate, and can also be arranged as a plurality of plate splicing structures, and the structure is preferably arranged as a plurality of plate splicing structures, so that different plates cover different positions of the lifting lectern, and the lifting lectern is convenient to disassemble and overhaul in a targeted manner.

The display piece 10 is arranged on the upper end surface of the teacher desk 11 through an adjusting device; the teacher desk 11 comprises a mounting desk 15 arranged at the upper end of the teacher desk, and a chute for mounting the display piece 10 is arranged at the upper end of the mounting desk 15; so that the display member 10 can be received in the chute without being translated side-to-side by the mounting table 15.

The lower extreme of lectern table 11 is equipped with electric box 16, and display element 10 passes through wire and electric box 16 electric connection, and electric box 16 still passes through the wire and connects the electric wire netting, and the wire is accomodate in wire receiver 6.

In order to meet the daily use, the lectern table 11 is also provided with a water cup holder 17, and the water cup holder 17 is embedded into the upper surface of the lectern table 11 and can be rotatably arranged on one side of the lectern table 11, so that the water cup holder 17 can be conveniently stored.

The display piece 10 comprises a mounting frame 101, at least one touch display screen 102 and at least one revealing screen 103, wherein the touch display screen 102 is arranged on the mounting frame 101, 1 block, 2 blocks or more can be arranged in the device, different contents can be conveniently displayed, courseware can be conveniently classified and annotated, the revealing screen 103 can be further arranged on one side of the touch display screen 102, and the device can be used for displaying information such as a course arrangement table, demonstration prompting contents and the like, and assisting a teacher in acquiring more information.

Further, the wire storage member 6 includes a drag chain 61, a first wiring assembly 62 and a second wiring assembly 63, wherein two ends of the drag chain 61 are respectively connected with the lifting table body 1 and the fixed support 12, so that the drag chain 61 can store wires, and the wires are stored, so that the lifting table is more regular and beautiful in routing, and meanwhile, the wires are protected; the first wiring assembly 62 and the second wiring assembly 63 are respectively arranged at two ends of the drag chain 61, wherein a wire groove of the first wiring assembly 62 is arranged on the fixed support 12, the first wiring assembly 62 comprises a first wiring groove 621, a guide groove 622 for connecting one end of the drag chain 61 with the first wiring groove 621 and a cover plate 623 for covering the first wiring groove 621, the guide groove 622 is arranged in the protective cover 131, and the cover plate 623 is detachably arranged above the first wiring groove 621, so that attractive appearance is ensured and convenient maintenance is facilitated; the wire casing of second wiring subassembly 63 sets up on lift table body 1, and second wiring subassembly 63 includes second wiring groove 631, and second wiring groove 631 one side is equipped with detachable baffle 632, convenient to overhaul while guaranteeing pleasing to the eye.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims

1. Lectern display screen adjusts structure, its characterized in that includes:

the adjusting device comprises a sliding driving unit (2) for driving at least one display piece (10) to slide;

the support pieces (3) are arranged at the lower end of the sliding driving unit (2);

wherein the display piece (10) is arranged on the sliding driving unit (2) and slides back and forth along with the sliding driving unit (2);

the sliding driving unit (2) is supported and installed on the plane of the teacher desk plate (11) through the supporting piece (3), and the distance between the teacher desk plate (11) and the sliding driving unit (2) is increased.

2. A desk display adjustment arrangement according to claim 1, characterized in that the slip drive unit (2) comprises at least one slip drive assembly (21) and at least one positioning assembly (22);

the sliding driving assembly (21) is provided with the display piece (10);

the positioning assembly (22) is arranged between the sliding driving assembly (21) and the teacher desk (11); when the sliding driving assembly (21) is not subjected to external force, the positioning assembly (22) limits the movement of the sliding driving assembly (21).

3. A desk display adjustment arrangement according to claim 2, characterized in that the slip drive assembly (21) comprises a mounting plate (211), a slip (212) and a guide (213);

the display piece (10) is mounted on the mounting plate (211), a storage space (2111) is formed in the mounting plate (211), and an opening of the storage space (2111) faces to the sliding direction of the mounting plate (211);

the sliding piece (212) is arranged on the mounting plate (211); the guide piece (213) is arranged on the teacher desk (11).

4. A desk display adjustment mechanism as claimed in claim 3, wherein the positioning assembly (22) comprises a positioning tab (221) and a positioning rod (222);

the locating pieces (221) are arranged in the space, the locating pieces (221) are fixedly connected with the teacher desk (11), and the locating rods (222) are arranged on the mounting plate (211);

the positioning plate (221) is provided with a plurality of positioning holes (2211), the lower end of the positioning rod (222) is provided with elastic wave beads (2221) which are mutually matched with the positioning holes (2211), and the height of the elastic wave beads (2221) is not less than the depth of the positioning holes (2211).

5. A desk display adjustment structure according to claim 3, characterized in that the adjustment device further comprises an angle adjustment unit (4), the angle adjustment unit (4) being arranged on the mounting plate (211) and sliding synchronously with the mounting plate (211);

the angle adjusting unit (4) comprises a hinge seat (41) and a telescopic driving piece (42);

the hinge seat (41) is fixedly arranged on the mounting plate (211) and is in rotary fit connection with one end of the display piece (10);

the telescopic driving piece (42) is arranged on the mounting plate (211) and drives the display piece (10) to rotate along the central axis of the hinging seat (41).

6. A desk display adjustment mechanism as claimed in claim 5, wherein the telescopic drive member (42) comprises a telescopic end (421), a fixed end (422);

the telescopic end (421) is in rotating fit connection with the display piece (10), and the fixed end (422) is in rotating fit connection with the mounting plate (211).

7. A desk display adjustment arrangement according to claim 5, characterized in that a protective plate assembly (5) is provided between the display member (10) and the mounting plate (211);

the protection plate assembly (5) shields the angle adjusting unit (4), and the protection plate assembly (5) stretches out and draws back along with the overturning of the display piece (10).

8. A desk display adjustment arrangement according to claim 7, characterized in that the guard plate assembly (5) comprises a first guard plate (51), a second guard plate (52);

the first protection plate (51) is fixedly connected with the display piece (10), and the second protection plate (52) is fixedly connected with the mounting plate (211);

a buffer gap (53) is arranged between the first protection plate (51) and the second protection plate (52).

9. A lifting lectern provided with a lectern display screen adjusting structure according to any one of the preceding claims 1-8, characterized in that it comprises a display member (10), said display member (10) comprising a mounting frame (101), at least one touch display screen (102) arranged on the mounting frame (101) and at least one revealing screen (103).

10. A lifting lectern according to claim 9, further comprising a lifting table body (1), a fixed support (12), a telescopic rod (13) connecting the lifting table body (1) and the fixed support (12);

the lifting table body (1) comprises a teacher desk (11) and a plurality of detachable shielding plates (14), wherein the detachable shielding plates (14) are arranged around the side face of the lifting table body (1);

the display piece (10) is arranged on the upper end surface of the teacher desk (11) through an adjusting device; the upper end of the teacher desk board (11) is provided with a mounting desk board (15), and the upper end of the mounting desk board (15) is provided with a chute for mounting the display piece (10);

the lower end of the teacher desk (11) is provided with an electric box (16), the display piece (10) is electrically connected with the electric box (16) through a wire, the electric box (16) is also connected with a power grid through a wire, and the wire is accommodated in the wire accommodating piece (6);

a cup holder (17) is also arranged on the teacher desk (11).