CN212365221U

CN212365221U - Display stand for multimedia teaching

Info

Publication number: CN212365221U
Application number: CN202021227127.4U
Authority: CN
Inventors: 庞晓宗; 陈红
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-01-15
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses a show stand for multimedia teaching, including device shell, device body and maintenance door, the inside fixedly connected with screw lead screw of device shell, device body bottom fixedly connected with lifter plate, lifter plate both sides fixedly connected with connecting block, screw lead screw top outer wall fixedly connected with second bevel gear, second bevel gear outer wall is connected with first bevel gear, one side fixedly connected with second dwang of second bevel gear is kept away from to first bevel gear, first bevel gear's one end outer wall fixedly connected with ratchet is kept away from to the second dwang. The utility model discloses a set up the screw thread lead screw, can drive first bevel gear and rotate when rotating the rolling disc, through the block of first bevel gear and second bevel gear, drive the screw thread lead screw and rotate and make the device body expand through the inside lead screw cover of connecting block, can stretch out and draw back the protection when not using, increase the protectiveness.

Description

Display stand for multimedia teaching

Technical Field

The utility model relates to a many show stands technical field specifically is show stand for multimedia teaching.

Background

The display stand is also called a material object display stand, when the display stand is connected to a projector and a television, materials, lectures, material objects, slides and the like can be clearly displayed, and the display stand is one of indispensable teaching equipment in a multimedia classroom;

the present exhibition stand for multimedia teaching is mostly unprotected during the use, resulting in the exposure of the display screen when not in use, easy collision and damage, and dust adsorption and influence on the use when used for a long time, therefore, there is a need to provide the exhibition stand for multimedia teaching to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a show stand for multimedia teaching to solve present show screen that proposes in the above-mentioned background art and expose when not using, collision damage easily, and when using for a long time, can produce the absorbent problem of dust.

In order to achieve the above purpose, the utility model provides a display stand for multimedia teaching according to the following technical scheme, comprising a device shell, a device body and a maintenance door, wherein a threaded lead screw is fixedly connected inside the device shell, a lifting plate is fixedly connected at the bottom end of the device body, connecting blocks are fixedly connected at two sides of the lifting plate, a second bevel gear is fixedly connected at the outer wall at the top end of the threaded lead screw, the outer wall of the second bevel gear is connected with a first bevel gear, a second rotating rod is fixedly connected at one side of the first bevel gear, which is far away from the second bevel gear, a ratchet wheel is fixedly connected at the outer wall of one end of the second rotating rod, a limiting bin is fixedly connected at the outer wall of one side of the device shell, which is close to the second rotating rod, a first supporting spring, one side fixedly connected with gag lever post that first supporting spring was kept away from to the sliding plate, the one end fixedly connected with rolling disc of first bevel gear is kept away from to the second dwang, device shell top fixedly connected with cleaning bin, the inside first dwang of fixedly connected with in cleaning bin, first dwang one end fixedly connected with mount pad, cleaning bin internal connection has clean brush, clean brush both sides fixedly connected with installation storehouse.

Preferably, the second dwang meshes with the second bevel gear through first bevel gear mutually, screw lead screw and device shell department of meeting is provided with first axis of rotation, the screw lead screw is connected with the rotation of device shell through first axis of rotation, the second dwang is provided with the second axis of rotation with the device shell department of meeting, the second dwang passes through the second axis of rotation and is connected with the rotation of device shell.

Preferably, the connecting block is close to the one end internal connection of screw lead screw and has the lead screw cover, the connecting block passes through lead screw cover and screw lead screw sliding connection, the inside first slide bar that has run through of the one end that the screw lead screw was kept away from to the connecting block, the connecting block is close to the inside first removal hole of having seted up of one end of first slide bar, the connecting block passes through first removal hole and first slide bar sliding connection.

Preferably, a second sliding rod penetrates through the inside of the sliding plate, the sliding plate is connected with the limiting bin in a sliding mode through a first supporting spring, a second moving hole is formed in the sliding plate, and the sliding plate is connected with the second sliding rod in a sliding mode through the second moving hole.

Preferably, the first rotating rod is provided with a third rotating shaft at the joint of the first rotating rod and the cleaning bin, the first rotating rod is rotatably connected with the cleaning bin through the third rotating shaft, a second supporting spring is fixedly connected inside the mounting bin, a moving plate is fixedly connected to the outer wall of the second supporting spring, and a third moving hole is formed inside the moving plate.

Preferably, a third sliding rod penetrates through the inside of the moving plate, the moving plate is connected with the third sliding rod in a sliding mode through a third moving hole, an installation block is fixedly connected to one side, far away from the second supporting spring, of the moving plate, an installation groove is formed in the installation seat, and the installation block is connected with the installation seat in a sliding mode through the installation groove.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through setting up the screw thread lead screw, can be when rotating the rolling disc, drive first bevel gear and rotate, block through first bevel gear and second bevel gear, it rotates and makes the device body expand through the inside lead screw cover of connecting block to drive the screw thread lead screw, can stretch out and draw back the protection when not using, increase the protectiveness, through setting up the inside first supporting spring in spacing storehouse, support the gag lever post, can be when the device body expands, spacing to the ratchet, prevent that the second dwang is not hard up, increase the steadiness of device body.

2. Through setting up clean brush, can clear up the device body, prevent that the device body from using for a long time and leading to surface dust to adsorb, influence the use of device body, through setting up the inside second supporting spring in installation storehouse, can support the movable plate, make the movable plate drive the installation piece and block the inside fixing of income mounting groove, when long-time the use of clean brush leads to clean effect low, can change or clear up the dismantlement of clean brush, keep the clean effect of clean brush.

Drawings

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

FIG. 2 is a schematic sectional front view of the structure of FIG. 1;

FIG. 3 is a schematic front sectional view of the structure shown at B in FIG. 1 according to the present invention;

FIG. 4 is a schematic top sectional view of the structure of the device body and the cleaning brush of the present invention;

fig. 5 is a schematic side view of the structure of the limiting bin and the ratchet wheel of the present invention.

In the figure: 1. a device housing; 2. a device body; 3. cleaning the bin; 4. a first rotating lever; 5. a first slide bar; 6. a lifting plate; 7. connecting blocks; 8. a threaded lead screw; 9. rotating the disc; 10. a second rotating lever; 11. a first bevel gear; 12. a second bevel gear; 13. a second slide bar; 14. a first support spring; 15. a sliding plate; 16. a limiting bin; 17. a limiting rod; 18. repairing the door; 19. a ratchet wheel; 20. a mounting seat; 21. moving the plate; 22. installing a bin; 23. a second support spring; 24. cleaning the brush; 25. a third slide bar; 26. mounting blocks; 27. and (4) mounting the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides an embodiment:

a display stand for multimedia teaching comprises a device shell 1, a device body 2 and a maintenance door 18, wherein a threaded screw rod 8 is fixedly connected inside the device shell 1, a lifting plate 6 is fixedly connected at the bottom end of the device body 2, connecting blocks 7 are fixedly connected at two sides of the lifting plate 6, a screw rod sleeve is connected inside one end, close to the threaded screw rod 8, of each connecting block 7, each connecting block 7 is in sliding connection with the threaded screw rod 8 through the corresponding screw rod sleeve, through the arrangement of the screw rod sleeves, when the threaded screw rod 8 rotates, each connecting block 7 can drive the lifting plate 6 to be rotated away from or accommodated in the device body 2, a first sliding rod 5 penetrates through the inside one end, far away from the threaded screw rod 8, of each connecting block 7, a first moving hole is formed inside one end, close to the first sliding rod 5, of each connecting block 7 is in sliding connection with the first sliding rod 5, and through the arrangement of the first sliding rods 5, the, a second bevel gear 12 is fixedly connected to the outer wall of the top end of the threaded screw 8, a first bevel gear 11 is connected to the outer wall of the second bevel gear 12, a second rotating rod 10 is fixedly connected to one side of the first bevel gear 11 far from the second bevel gear 12, the second rotating rod 10 is meshed with the second bevel gear 12 through the first bevel gear 11, a first rotating shaft is arranged at the joint of the threaded screw 8 and the device shell 1, the threaded screw 8 is rotatably connected with the device shell 1 through the first rotating shaft, a second rotating shaft is arranged at the joint of the second rotating rod 10 and the device shell 1, the second rotating rod 10 is rotatably connected with the device shell 1 through the second rotating shaft, a rotating disc 9 is fixedly connected to one end of the second rotating rod 10 far from the first bevel gear 11, through the arrangement of the first bevel gear 11 and the second bevel gear 12, the second rotating disc 10 can be driven to rotate when the rotating disc 9 is rotated, so that the first, so that the device body 2 can be stored and protected when not in use.

A ratchet wheel 19 is fixedly connected to the outer wall of one end of the second rotating rod 10 far away from the first bevel gear 11, a limiting bin 16 is fixedly connected to the outer wall of one side of the device shell 1 close to the second rotating rod 10, a first supporting spring 14 is fixedly connected to the inside of the limiting bin 16, a sliding plate 15 is fixedly connected to the outer wall of the first supporting spring 14, a second sliding rod 13 penetrates through the inside of the sliding plate 15, the sliding plate 15 is slidably connected with the limiting bin 16 through the first supporting spring 14, a second moving hole is formed in the sliding plate 15, the sliding plate 15 is slidably connected with the second sliding rod 13 through the second moving hole, a limiting rod 17 is fixedly connected to one side of the sliding plate 15 far away from the first supporting, the sliding plate 15 can be supported by the first supporting spring 14 arranged inside the limiting bin 16, so that the sliding plate 15 drives the limiting rod 17 to fix the ratchet wheel 19, and the instability of the device body 2 caused by the looseness of the second rotating rod 10 when the device body 2 is unfolded is prevented.

The top end of the device shell 1 is fixedly connected with a cleaning bin 3, the interior of the cleaning bin 3 is fixedly connected with a first rotating rod 4, one end of the first rotating rod 4 is fixedly connected with a mounting seat 20, the interior of the cleaning bin 3 is connected with a cleaning brush 24, two sides of the cleaning brush 24 are fixedly connected with mounting bins 22, a third rotating shaft is arranged at the joint of the first rotating rod 4 and the cleaning bin 3, the first rotating rod 4 is rotatably connected with the cleaning bin 3 through the third rotating shaft, when the device body 2 is unfolded or stored through arranging the first rotating rod 4 and the cleaning brush 24, the cleaning brush 24 can rotatably clean the device body 2, the surface dust adsorption caused by long-time use of the device body 2 is prevented from influencing the use of the device body 2, the interior of the mounting bin 22 is fixedly connected with a second supporting spring 23, the outer wall of the second supporting spring 23 is fixedly connected with a movable plate 21, and the, the movable plate 21 can be supported, a third moving hole is formed in the movable plate 21, a third sliding rod 25 penetrates through the movable plate 21, the movable plate 21 is connected with the third sliding rod 25 in a sliding mode through the third moving hole, the movable plate 21 and the installation block 26 can move horizontally through the third sliding rod 25, one side, far away from the second supporting spring 23, of the movable plate 21 is fixedly connected with the installation block 26, an installation groove 27 is formed in the installation seat 20, the installation block 26 is connected with the installation seat 20 in a sliding mode through the installation groove 27, when the cleaning effect is low due to long-time use of the cleaning hairbrush 24, the maintenance door 18 can be opened through the installation, the movable plate 21 slides, the installation block 26 is driven to be separated from the installation groove 27 in the first rotating rod 4, the cleaning hairbrush 24 can be replaced or cleaned, and the cleaning effect of.

The working principle is as follows: when the device works, the sliding plate 15 is slid, the sliding plate 15 moves through the second sliding rod 13 and the first supporting spring 14 to drive the limiting rod 17 to move, the limiting of the ratchet wheel 19 is released, then the rotating disc 9 is rotated to drive the second rotating rod 10 to rotate, the first bevel gear 11 is clamped with the second bevel gear 12 to drive the threaded screw rod 8 to rotate, the connecting block 7 can drive the lifting plate 6 to move up and down through the screw rod sleeve in the connecting block 7, the device body 2 is unfolded, and the reverse operation is performed when the device body is stored;

during the clearance, because device body 2 expandes, can make cleaning brush 24 rotate the clearance through first pole 4 to device body 2, when changing cleaning brush 24, the staff opens maintenance door 18, and the movable plate 21 that slides afterwards can carry out horizontal migration through second supporting spring 23 and third slide bar 25, drives installation piece 26 and breaks away from mounting groove 27 inside can dismantle cleaning brush 24 afterwards, and the reverse operation can during the installation.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Show stand for multimedia teaching, including device shell (1), device body (2) and maintenance door (18), its characterized in that: the device comprises a device shell (1), wherein a threaded screw rod (8) is fixedly connected in the device shell (1), a lifting plate (6) is fixedly connected at the bottom end of the device body (2), connecting blocks (7) are fixedly connected at two sides of the lifting plate (6), a second bevel gear (12) is fixedly connected on the outer wall of the top end of the threaded screw rod (8), a first bevel gear (11) is connected on the outer wall of the second bevel gear (12), a second rotating rod (10) is fixedly connected on one side of the first bevel gear (11) away from the second bevel gear (12), a ratchet wheel (19) is fixedly connected on the outer wall of one end of the second rotating rod (10) away from the first bevel gear (11), a limiting bin (16) is fixedly connected on the outer wall of one side of the device shell (1) close to the second rotating rod (10), a first supporting spring (14) is fixedly connected in the limiting bin (16, one side fixedly connected with gag lever post (17) of first supporting spring (14) is kept away from in sliding plate (15), one end fixedly connected with rolling disc (9) of first bevel gear (11) are kept away from in second dwang (10), device shell (1) top fixedly connected with cleans storehouse (3), clean first dwang (4) of the inside fixedly connected with in storehouse (3), first dwang (4) one end fixedly connected with mount pad (20), clean storehouse (3) internal connection has clean brush (24), clean brush (24) both sides fixedly connected with installation storehouse (22).

2. The display stand for multimedia teaching according to claim 1, wherein: second dwang (10) are through first bevel gear (11) and second bevel gear (12) mesh mutually, screw lead screw (8) are provided with first axis of rotation with device shell (1) department of meeting, screw lead screw (8) are rotated with device shell (1) through first axis of rotation and are connected, second dwang (10) are provided with the second axis of rotation with device shell (1) department of meeting, second dwang (10) are rotated with device shell (1) through the second axis of rotation and are connected.

3. The display stand for multimedia teaching according to claim 1, wherein: the one end internal connection that connecting block (7) are close to screw lead screw (8) has the lead screw cover, connecting block (7) are through lead screw cover and screw lead screw (8) sliding connection, the inside first slide bar (5) that runs through of one end that screw lead screw (8) were kept away from in connecting block (7), connecting block (7) are close to the inside first removal hole of having seted up of one end of first slide bar (5), connecting block (7) are through first removal hole and first slide bar (5) sliding connection.

4. The display stand for multimedia teaching according to claim 1, wherein: a second sliding rod (13) penetrates through the inside of the sliding plate (15), the sliding plate (15) is connected with the limiting bin (16) in a sliding mode through a first supporting spring (14), a second moving hole is formed in the sliding plate (15), and the sliding plate (15) is connected with the second sliding rod (13) in a sliding mode through the second moving hole.

5. The display stand for multimedia teaching according to claim 1, wherein: first pivot pole (4) and clean storehouse (3) department of meeting is provided with the third pivot, first pivot pole (4) are rotated with clean storehouse (3) through the third pivot and are connected, the inside fixedly connected with second supporting spring (23) of installation storehouse (22), second supporting spring (23) outer wall fixedly connected with movable plate (21), the third removal hole has been seted up to movable plate (21) inside.

6. The display stand for multimedia teaching according to claim 5, wherein: the movable plate (21) is internally provided with a third sliding rod (25) in a penetrating manner, the movable plate (21) is connected with the third sliding rod (25) in a sliding manner through a third moving hole, one side of the movable plate (21) far away from the second supporting spring (23) is fixedly connected with an installation block (26), an installation groove (27) is formed in the installation seat (20), and the installation block (26) is connected with the installation seat (20) in a sliding manner through the installation groove (27).