CN211479319U

CN211479319U - Teaching display device capable of expanding screen

Info

Publication number: CN211479319U
Application number: CN202020331923.6U
Authority: CN
Inventors: 高远; 郑欣荣; 高敏
Original assignee: Northwestern University
Current assignee: Northwestern University
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-09-11
Anticipated expiration: 2030-03-17

Abstract

The utility model discloses a teaching display device with expandable screen, which comprises a bottom plate, a covering plate, a storage box, a telescopic structure and a display component; the storage box is mounted on the bottom plate, the covering plate is connected with the storage box through a hinge, the telescopic structure is mounted inside the storage box, and the display assembly is mounted at the top end of the telescopic structure through a supporting plate; the display assembly comprises an LED main board, and two sides of the LED main board are respectively connected with an LED auxiliary board through rotating shafts; the supporting plate is positioned at the back side of the LED main board, and guide rails are respectively fixed on the two sides of the supporting plate; the stretching motor is fixed on the back side of the LED main board, and the expansion screw rod is connected with a rotating shaft of the stretching motor; the slide fastener is sleeved on the parallel expansion screw rod and the guide rail through the screw cylinder and the slide cylinder respectively; the back side of the LED auxiliary plate is connected with the slide fastener through a connecting rod. The utility model discloses can realize multi-direction show, enlarge the viewing surface, can be convenient for multielement, the show of wide angle, the bandwagon effect is better.

Description

Teaching display device capable of expanding screen

Technical Field

The utility model relates to an education equipment technical field especially relates to a can expand teaching display device of screen.

Background

With the development of the times, electronic device display has been widely used in current education. When in display, the display screen can meet the general requirements through the display shelf; however, there are cases where the effect of viewing vision is limited; especially when different levels of content need to be presented or viewing is more restricted on different sides.

SUMMERY OF THE UTILITY MODEL

The utility model provides a problem lie in providing a can expand teaching display device of screen, can divide each side show of screen, also can expand the screen and carry out the show of large-size screen, the observation field of vision effect when improving the teaching.

The utility model adopts the following technical scheme:

a teaching display device capable of expanding screens comprises a bottom plate, a covering plate, a storage box, a telescopic structure and a display assembly; the bottom plate is provided with a storage box, and the covering plate is connected with the storage box through a hinge; the telescopic structure is arranged in the storage box, and the display assembly is arranged at the top end of the telescopic structure through the support plate;

the display component comprises an LED main board, and two sides of the LED main board are respectively connected with an LED auxiliary board through rotating shafts; the supporting plate is positioned at the back side of the LED main board, and guide rails are respectively fixed on the two sides of the supporting plate; the stretching motor is fixed on the back side of the LED main board, and the expansion screw rod is connected with a rotating shaft of the stretching motor; the slide fastener is sleeved on the parallel expansion screw rod and the guide rail through the screw cylinder and the slide cylinder respectively; the back side of the LED auxiliary plate is connected with the slide fastener through a connecting rod.

The telescopic structure comprises a telescopic motor arranged on the bottom plate, a telescopic screw rod is connected with a rotating shaft of the telescopic motor, and a lifting rod with threads arranged inside is sleeved on the telescopic screw rod; the lifting rod is further fixedly provided with a limiting plate, the bottom side of the limiting plate and the bottom plate are respectively provided with a fixed support, and a plurality of shearing force arms which are connected end to end are arranged between the fixed supports.

The top end of the lifting rod is connected with the supporting plate, and the lifting rod is located below the middle position of the LED main board.

The shear arms comprise four groups of shear arms arranged in the vertical direction, and springs are arranged between the shear arms.

The cross section of receiver is the square, the width and the length and the LED mainboard phase-match of LED subplate.

The bottom of the bottom plate is also provided with a roller.

The utility model has the advantages that:

according to the teaching display device capable of expanding the screen, teaching contents can be guided into the LED auxiliary board and the LED main board to be displayed in multiple directions; when large-screen display is needed, the stretching motor rotates reversely to drive the expansion screw rod to rotate, the slide fastener is pulled to slide along the expansion screw rod and the guide rail, and the LED auxiliary boards and the LED main boards on the two sides are combined into an integral structure to be displayed in a large screen mode under the supporting and matching of the connecting rod; the large screen display can also be performed in multiple angles through the rotation of the telescopic shaft, so that multi-direction display and wide-angle display are fully realized, and the display effect is very obvious;

the utility model provides a can expand teaching display device of screen still through flexible motor operation, drives flexible lead screw rotatory, realizes the lift of lifter, under four group's shear force arms and expanding spring's cooperation at the lift in-process, can stabilize orderly realization to display module's lift, can guarantee that display module can in time accomodate after the operation, intact keeping is difficult for impairedly, prolongs display module's life.

Drawings

FIG. 1 is an overall perspective view of a teaching display device with expandable screen according to the present invention;

FIG. 2 is a top view of a supporting structure of the expandable teaching display device of the present invention;

FIG. 3 is a perspective view of a supporting structure of the teaching display device with expandable screen according to the present invention;

illustration of the drawings:

1. a base plate; 2. a cover plate; 3. a storage box; 4. a telescopic structure; 5. a display component; 51. a guide rail; 52. a support plate; 53. expanding the screw rod; 54. sliding and buckling; 55. connecting a support; 56. an LED sub-board; 57. a connecting rod; 58. an LED main board; 59. a tension motor; 41. a limiting plate; 42. a fixed support; 43. a shearing arm; 44. a lifting rod; 45. a telescopic screw rod; 46. a telescopic motor.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1 to 3, a teaching display device capable of expanding a screen comprises a bottom plate 1, a covering plate 2, a storage box 3, a telescopic structure 4 and a display assembly 5; the storage box 3 is mounted on the bottom plate 1, the covering plate 2 is connected with the storage box 3 through a hinge, the telescopic structure 4 is mounted inside the storage box 3, and the display assembly 5 is mounted at the top end of the telescopic structure 4 through a supporting plate 52;

the display component 5 comprises an LED main board 58, and two sides of the LED main board 58 are respectively connected with an LED auxiliary board 56 through rotating shafts; the supporting plate 52 is positioned at the back side of the LED main board 58, and two sides of the supporting plate are respectively fixed with a guide rail 51; the stretching motor 59 is fixed on the back side of the LED main board 58, and the expansion screw 53 is connected with the rotating shaft of the stretching motor 59; the slide fastener 54 is respectively sleeved on the parallel expansion screw rod 53 and the guide rail 51 through a screw cylinder and a slide cylinder; the back side of the LED sub-plate 56 is connected to the slider 54 via a connecting rod 57.

Further, the telescopic structure 4 comprises a telescopic motor 46, the telescopic motor 46 is installed on the bottom plate 1 through a bolt in a matching manner, a telescopic screw rod 45 is connected with a rotating shaft of the telescopic motor 46, and a lifting rod 44 with a threaded hole formed in the inner part is sleeved on the telescopic screw rod 45; a limiting plate 41 is further fixed on the lifting rod 44, fixed supports 42 are respectively arranged on the bottom side of the limiting plate 41 and the bottom plate 1, and a plurality of shearing arms 43 connected end to end are arranged between the fixed supports 42.

Specifically, the top end of the lifting rod 44 is fixed at the bottom middle position of the LED main board 58 by welding.

The shear arms 43 comprise four groups of shear arms arranged along the vertical direction, and springs are further arranged between the shear arms 43.

The cross section of receiver 3 is the square, the width and the length of LED subplate 56 are equal with the width and the length of LED mainboard 58, the width and the length of LED mainboard 58 all are less than receiver 3 side panel 0.5 cm.

Specific examples are given below.

Referring to fig. 1 to 3, the teaching display device capable of expanding the screen comprises a bottom plate 1, a cover plate 2, a storage box 3, a telescopic structure 4 and a display assembly 5, wherein the storage box 3 is installed on the top side of the bottom plate 1, the cover plate 2 is installed at the port of the storage box 3 in a matched mode through a hinge, the telescopic structure 4 is installed inside the storage box 3, and the display assembly 5 is installed at the top end of the telescopic structure 4;

the display assembly 5 comprises an LED main board 58, LED auxiliary boards 56 are respectively installed on two sides of the LED main board 58 in a matched mode through hinges, a guide rail 51 is fixedly welded on the supporting board, a stretching motor 59 is installed on the back of the LED main board 58 in a matched mode through bolts, an expansion screw 53 is installed at the output end portion of the stretching motor 59, and the guide rail 51 is parallel to the expansion screw 53; the slide fastener 54 is respectively clamped on the expansion screw rod 53 and the guide rail 51; the back side of the LED sub-plate 56 and one side of the slider 54 are fixed with connecting supports 55 by welding, and both ends of the connecting rod 57 are respectively installed inside the two connecting supports 55 by pin fitting.

Extending structure 4 includes flexible motor 46, flexible motor 46 passes through the bolt cooperation to be installed in the top side of bottom plate 1, and the output tip of flexible motor 46 is installed in the cooperation of flexible lead screw 45, the inside screw hole that offers up in bottom of lifter 44, flexible lead screw 45 passes through screw-thread fit and installs inside the screw hole, welded fastening is passed through to the periphery bottom of lifter 44 has limiting plate 41, there is fixing support 42, two bottom side of limiting plate 41 and the top side of bottom plate 1 through welded fastening respectively the head and the tail continuity is provided with four shearing force arms 43 between fixing support 42.

The top end of the lifting rod 44 is fixed on the supporting plate by welding and is positioned below the middle position of the LED main board 58.

The cross section of receiver 3 is the square, the width and the length of LED subplate 56 are equal with the width and the length of LED mainboard 58, the width and the length of LED mainboard 58 all are less than receiver 3 side panel 0.5cm, can cooperate the operation of accomodating.

When teaching or presentation is performed, the display contents are guided into the LED auxiliary board 56 and the LED main board 58 through the conversion structure to be independently displayed, and the angle can be adjusted by rotating the stretching motor 59 and pulling the slide fastener 54 to slide along the expansion screw rod 53 and the guide rail 51 when needed; when integral display is needed, the stretching motor 59 rotates reversely to drive the expansion screw rod 53 to rotate, the slide fastener 54 is pulled to slide upwards along the guide rail 51, and the LED auxiliary plates 56 on the two sides and the LED main plate 58 are combined into an integral structure under the supporting and matching of the connecting rod 57, so that large-screen operation is facilitated; after the large screen display is finished, the motor 59 can be stretched to rotate, the expansion screw rod 53 is driven to rotate, the slide fastener 54 is pulled to slide downwards along the guide rail 51, and the LED auxiliary boards 56 on the two sides are separated from the LED main board 58 under the supporting and matching of the connecting rod 57;

after using the completion, still through flexible motor 46 operation, drive flexible lead screw 45 rotatory, realize the lift of lifter 44, under four group's shear force arm 43 and expanding spring's cooperation at the lift in-process, can be stable and orderly realization to the lift of display module 5, can guarantee that display module 5 can in time accomodate after the operation, intact keeping is difficult for impaired, extension display module 5's life.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The teaching display device capable of expanding the screen is characterized by comprising a bottom plate (1), a covering plate (2), a storage box (3), a telescopic structure (4) and a display assembly (5); the bottom plate (1) is provided with a storage box (3), and the covering plate (2) is connected with the storage box (3) through a hinge; the telescopic structure (4) is arranged in the storage box (3), and the display assembly (5) is arranged at the top end of the telescopic structure (4) through a support plate (52);

the display component (5) comprises an LED main board (58), and two sides of the LED main board are respectively connected with an LED auxiliary board (56) through rotating shafts; the supporting plate (52) is positioned at the back side of the LED main board (58), and guide rails (51) are respectively fixed at the two sides of the supporting plate; the stretching motor (59) is fixed on the back side of the LED main board (58), and the expansion screw rod (53) is connected with the rotating shaft of the stretching motor (59); the slide fastener (54) is sleeved on the parallel expansion screw rod (53) and the guide rail (51) through the screw cylinder and the slide cylinder respectively; the back side of the LED sub-plate (56) is connected with the slide fastener (54) through a connecting rod (57).

2. The teaching display device with the expandable screen according to claim 1, wherein the telescopic structure (4) comprises a telescopic motor (46) arranged on the bottom plate (1), a telescopic screw rod (45) is connected with a rotating shaft of the telescopic motor (46), and a lifting rod (44) with threads arranged inside is sleeved on the telescopic screw rod (45); a limiting plate (41) is further fixed on the lifting rod (44), fixing supports (42) are respectively arranged on the bottom side of the limiting plate (41) and the bottom plate (1), and a plurality of shearing arms (43) which are connected end to end are arranged between the fixing supports (42).

3. The teaching display device with the expandable screen as claimed in claim 2, wherein the top end of the lifting rod (44) is connected with the supporting plate (52), and the lifting rod (44) is positioned below the middle position of the LED main board (58).

4. The teaching display device capable of expanding the screen according to claim 2, wherein the shearing arms (43) comprise four groups of shearing arms arranged along the vertical direction, and springs are further arranged between the shearing arms (43).

5. The teaching display device with the expandable screen as claimed in claim 1, wherein the cross section of the storage box (3) is square, and the width and the length of the LED auxiliary board (56) are matched with those of the LED main board (58).

6. The teaching display device with the expandable screen as claimed in claim 1, wherein rollers are further arranged at the bottom of the bottom plate (1).