CN210870362U

CN210870362U - Classroom lectern with folding show screen

Info

Publication number: CN210870362U
Application number: CN201921459073.1U
Authority: CN
Inventors: 黄文敬; 孙恒
Original assignee: Jinan Jinquan Complete Set Electric Appliance Co ltd
Current assignee: Jinan Jinquan Complete Set Electric Appliance Co ltd
Priority date: 2019-09-04
Filing date: 2019-09-04
Publication date: 2020-06-30
Anticipated expiration: 2029-09-04

Abstract

The utility model discloses a classroom lectern with folding show screen, including the table body, the interior bottom fixedly connected with support column of the table body, there is the show screen body on the top of support column through coupling mechanism movable mounting, the interior bottom of the table body and the rear side that is located the support column rotate through the bearing and are connected with first bull stick, the fixed surface of first bull stick installs first rotation gear and first bevel gear. The utility model discloses, whole show screen body can be accomodate in the inside of the table body when not using, and the guard plate is located show screen body top and shelters from it, can effectual dustproof and waterproof, during the use, the opening of guard plate and the raising of show screen body are all very convenient, after opening of guard plate, the teacher can continue to go up the fine setting as required angle, the teacher need not to keep a posture for a long time and watches to improvement teaching effect that can step forward.

Description

Classroom lectern with folding show screen

Technical Field

The utility model relates to a teaching aid field especially relates to a classroom lectern with folding show screen.

Background

Classroom lectern is the indispensable teaching aid of classroom teaching, is used for placing article such as books, lecture stage property in class, and along with the development progress of science and technology, many subjects need use multimedia technology in a lot of in class simultaneously, and the teacher need use computer and show screen etc. in a large number to teaching quality has been improved to a certain extent.

Although the show screen has brought many facilities for the teaching, current show screen has certain defect, and for example the show screen generally is fixed setting, and the teacher need be low for a long time and keeps a posture to watch, causes teaching fatigue easily, influences the teaching effect, and current classroom lectern is not strong to the protectiveness of show screen simultaneously, and is inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a classroom lectern with a folding display screen.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a classroom lecture table with a folding display screen comprises a table body, wherein a support column is fixedly connected to the inner bottom of the table body, a display screen body is movably mounted at the top end of the support column through a connecting mechanism, a first rotating rod is rotatably connected to the inner bottom of the table body and positioned at the rear side of the support column through a bearing, a first rotating gear and a first bevel gear are fixedly mounted on the outer surface of the first rotating rod, a threaded sleeve rod is in threaded connection with the outer surface of the top end of the first rotating rod, the top end of the threaded sleeve rod is rotatably connected with the display screen body through a connecting mechanism, a motor is arranged at the inner bottom of the table body and close to the first rotating rod, a second rotating gear is fixedly connected to an output shaft of the motor, a second rotating rod is rotatably connected to the inner wall of the rear side of the table body through a bearing, and a second bevel gear is fixedly mounted at one end of the second rotating rod, and the fixed surface of second bull stick installs the third rotating gear, the top of second bull stick is provided with the movable plate, the movable plate is close to one side of the internal wall of table and passes through the inner wall sliding connection of stopper and the table body, the spout with stopper looks adaptation is seted up to the inside of the internal wall of table rear side, the last fixed surface of movable plate is connected with the connecting rod, the one end that the movable plate was kept away from to the connecting rod extends to the top and the fixedly connected with guard plate of the table body, the lower fixed surface of movable plate is connected with the rack.

As a further description of the above technical solution:

the connecting mechanism comprises a fixed block, two mounting blocks and two round rods are fixedly connected to the lower surface of the fixed block, the round rods are fixedly connected between the side walls of the mounting blocks, and the end portions of the support columns and the threaded sleeve rods are connected with the outer surfaces of the corresponding round rods in a rotating mode.

As a further description of the above technical solution:

the first rotating gear is meshed with the second rotating gear, the first bevel gear is meshed with the second bevel gear, and the third rotating gear is meshed with the rack.

As a further description of the above technical solution:

the middle of support column and first bull stick is provided with the dead lever, the surface sliding connection of dead lever has the slider, the lateral wall fixedly connected with installation pole of slider, the one end that the slider was kept away from to the installation pole is connected with the surface fixed connection of screw loop pole.

As a further description of the above technical solution:

the bottom fixedly connected with supporting leg of the table body, the bottom fixedly connected with backup pad of supporting leg.

As a further description of the above technical solution:

the table comprises a table body and is characterized in that a transverse plate is fixedly connected to the rear side of the top of the table body, and side plates are fixedly connected to the two sides of the top of the table body.

The utility model discloses following beneficial effect has:

compared with the prior art, this classroom lectern with folding show screen, through starter motor, can be so that one side of show screen body is raised, and when show screen body is lifted, the guard plate also can turn right from a left side and remove, make show screen body can supply the teacher to watch, whole show screen body can be accomodate in the inside of the table body when not using, and the guard plate is located show screen body top and shelters from it, can effectually dustproof and waterproof, during the use, opening of guard plate and the raising of show screen body are all very convenient, after opening of guard plate, the teacher can continue up fine setting according to the angle of needs, the teacher need not to keep a posture for a long time and watches, thereby improvement teaching effect that can step forward.

Drawings

Fig. 1 is a front view of a classroom lecture table with a foldable display screen according to the present invention;

fig. 2 is a left side view of the internal structure of a classroom lecture table with a foldable display screen according to the present invention;

fig. 3 is a schematic view of a connecting mechanism of a classroom lecture table with a foldable display screen according to the present invention;

fig. 4 is a sliding connection diagram of the movable plate and the table body of the classroom lecture table with the foldable display screen provided by the utility model.

Illustration of the drawings:

1. a table body; 2. a support pillar; 3. the display screen body; 4. a first rotating lever; 5. a first rotating gear; 6. a first bevel gear; 7. a threaded rod; 8. a motor; 9. a second rotating gear; 10. a second rotating rod; 11. a third rotating gear; 12. a second bevel gear; 13. moving the plate; 14. a limiting block; 15. a chute; 16. a connecting rod; 17. a rack; 18. a protection plate; 19. fixing the rod; 20. a slider; 21. mounting a rod; 22. a fixed block; 23. mounting blocks; 24. a round bar; 25. supporting legs; 26. a support plate; 27. a transverse plate; 28. side plates.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, the utility model provides a pair of classroom lectern with folding show screen: comprises a table body 1, a supporting column 2 is fixedly connected to the inner bottom of the table body 1, a display screen body 3 is movably mounted at the top end of the supporting column 2 through a connecting mechanism, a first rotating rod 4 is rotatably connected to the inner bottom of the table body 1 and is positioned at the rear side of the supporting column 2 through a bearing, a first rotating gear 5 and a first bevel gear 6 are fixedly mounted on the outer surface of the first rotating rod 4, a threaded sleeve rod 7 is connected to the outer surface of the top end of the first rotating rod 4 in a threaded manner, threads matched with the inner portion of the threaded sleeve rod 7 are arranged on the outer surface of the first rotating rod 4, the top end of the threaded sleeve rod 7 is rotatably connected with the display screen body 3 through the connecting mechanism, a motor 8 is arranged at the inner bottom of the table body 1 and is close to the first rotating rod 4, a second rotating gear 9 is fixedly connected to an output shaft of the motor 8, a second rotating rod 10 is rotatably connected to the inner wall of the rear side of the table, and the outer fixed surface of the second rotating rod 10 is provided with a third rotating gear 11, a moving plate 13 is arranged above the second rotating rod 10, one side of the moving plate 13, which is close to the inner wall of the table body 1, is in sliding connection with the inner wall of the table body 1 through a limiting block 14, a sliding groove 15 matched with the limiting block 14 is formed in the inner wall of the rear side of the table body 1, the upper surface of the moving plate 13 is fixedly connected with a connecting rod 16, one end, far away from the moving plate 13, of the connecting rod 16 extends to the top of the table body 1 and is fixedly connected with a protection plate 18, and the lower surface of.

The connecting mechanism comprises a fixed block 22, two mounting blocks 23 are fixedly connected to the lower surface of the fixed block 22, a round bar 24 is fixedly connected between the side walls of the two mounting blocks 23, the end parts of a support column 2 and a threaded sleeve rod 7 are rotatably connected with the outer surface of the corresponding round bar 24, a first rotating gear 5 is meshed with a second rotating gear 9, a first bevel gear 6 is meshed with a second bevel gear 12, a third rotating gear 11 is meshed with a rack 17, a fixed rod 19 is arranged between the support column 2 and a first rotating rod 4, a sliding block 20 is slidably connected to the outer surface of the fixed rod 19, the arranged sliding block 20 and the threaded sleeve rod 7 can be lifted synchronously, a mounting rod 21 is fixedly connected to the outer side wall of the sliding block 20, one end of the mounting rod 21, far away from the sliding block 20, is fixedly connected with the outer surface of the threaded sleeve rod 7, a supporting leg 25 is, the supporting leg 25 and the backup pad 26 that set up have the effect of support to the table body 1, and the top rear side fixedly connected with diaphragm 27 of the table body 1, the equal fixedly connected with curb plate 28 in top both sides of the table body 1, the diaphragm 27 and the curb plate 28 that set up have certain guard action to the table body 1.

The working principle is as follows: during the use, the motor 8 is started, the output shaft of the motor 8 drives the second rotating gear 9 to rotate, because the second rotating gear 9 is meshed with the first rotating gear 5, the first rotating rod 4 drives the first bevel gear 6 to rotate together through the first rotating gear 5, because the rotation of the threaded sleeve rod 7 is limited by the installation rod 21, when the first rotating rod 4 rotates, the threaded sleeve rod 7 can move vertically upwards, so that the threaded sleeve rod 7 lifts one side of the display screen body 3, meanwhile, because the first bevel gear 6 drives the second bevel gear 12 to rotate, the third rotating gear 11 also rotates together, the third rotating gear 11 drives the rack 17 to move when rotating, and therefore the protection plate 18 can move, and the display screen body 3 is exposed.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a classroom lectern with folding show screen, includes the table body (1), its characterized in that: the table comprises a table body (1), wherein a supporting column (2) is fixedly connected to the inner bottom of the table body (1), a display screen body (3) is movably mounted at the top end of the supporting column (2) through a connecting mechanism, a first rotating rod (4) is rotatably connected to the inner bottom of the table body (1) and the rear side of the supporting column (2) through a bearing, a first rotating gear (5) and a first bevel gear (6) are fixedly mounted on the outer surface of the first rotating rod (4), a threaded sleeve rod (7) is in threaded connection with the outer surface of the top end of the first rotating rod (4), the top end of the threaded sleeve rod (7) is rotatably connected with the display screen body (3) through a connecting mechanism, a motor (8) is arranged at the inner bottom of the table body (1) and the position close to the first rotating rod (4), a second rotating gear (9) is fixedly connected to an output shaft of the motor (8), and a second rotating rod (10) is rotatably connected to the inner wall of, one end fixed mounting that the table body (1) inner wall was kept away from in second bull stick (10) has second bevel gear (12), and the fixed surface of second bull stick (10) installs third rotating gear (11), the top of second bull stick (10) is provided with movable plate (13), the inner wall sliding connection of stopper (14) and table body (1) is passed through to one side that movable plate (13) are close to table body (1) inner wall, spout (15) with stopper (14) looks adaptation are seted up to the inside of table body (1) rear side inner wall, the last fixed surface of movable plate (13) is connected with connecting rod (16), the one end that movable plate (13) were kept away from in connecting rod (16) extends to the top and the fixedly connected with guard plate (18) of table body (1), the lower fixed surface of movable plate (13) is connected with rack (17).

2. The classroom lecture table with foldable display screen as recited in claim 1, wherein: coupling mechanism includes fixed block (22), two installation piece (23) of the lower fixed surface fixedly connected with of fixed block (22), two fixedly connected with round bar (24) between the lateral wall of installation piece (23), the tip of support column (2) and screw loop pole (7) all is connected with the surface rotation that corresponds round bar (24).

3. The classroom lecture table with foldable display screen as recited in claim 1, wherein: the first rotating gear (5) is meshed with the second rotating gear (9), the first bevel gear (6) is meshed with the second bevel gear (12), and the third rotating gear (11) is meshed with the rack (17).

4. The classroom lecture table with foldable display screen as recited in claim 1, wherein: the middle of support column (2) and first bull stick (4) is provided with dead lever (19), the surface sliding connection of dead lever (19) has slider (20), the lateral wall fixedly connected with installation pole (21) of slider (20), the one end that slider (20) were kept away from in installation pole (21) is connected with the surface fixed connection of screw thread loop bar (7).

5. The classroom lecture table with foldable display screen as recited in claim 1, wherein: the table is characterized in that supporting legs (25) are fixedly connected to the bottom of the table body (1), and supporting plates (26) are fixedly connected to the bottoms of the supporting legs (25).

6. The classroom lecture table with foldable display screen as recited in claim 1, wherein: the table is characterized in that a transverse plate (27) is fixedly connected to the rear side of the top of the table body (1), and side plates (28) are fixedly connected to the two sides of the top of the table body (1).