CN216927826U

CN216927826U - Accounting teaching show shelf that can throw screen

Info

Publication number: CN216927826U
Application number: CN202122859092.7U
Authority: CN
Inventors: 侯建云
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-07-08
Anticipated expiration: 2031-11-22

Abstract

The utility model relates to the technical field of display stands and discloses an accounting teaching display stand capable of throwing screens, which comprises a base, wherein a support frame is arranged in the middle of the upper surface of the base, a frame body is arranged at the top end of the support frame, winding shafts are rotatably connected to the tops of the left inner wall and the right inner wall of the frame body, projection cloth is sleeved on the winding shafts, a movable plate is connected to the bottom end of the projection cloth, and a positioning plate is arranged on the right side surface of the movable plate. This can throw accounting teaching show shelf of screen, it rotates to drive the pivot through second driving motor for the pivot drives drive gear and rotates, drive gear drives two sets of teaching boards through the tooth and is the opposite direction along spacing slide rail and slides, has realized the regulation to two sets of teaching boards state of stretching out, has improved the controllability of device, makes the user can stretch out or accomodate the teaching board at any time, has made things convenient for the user to use the device, has improved the practicality of device.

Description

Accounting teaching show shelf that can throw screen

Technical Field

The utility model relates to the technical field of display stands, in particular to an accounting teaching display stand capable of being used for screen projection.

Background

Through retrieval, chinese patent No. CN208985397U discloses an accounting teaching show shelf, relating to the show shelf technical field, which is basically described as follows: comprises a device body, a first display column, a telescopic rod and a second display column, wherein the device body comprises the first display column, the second display column and the telescopic rod which can telescopically support the first display column and the second display column, the bottom end of the telescopic rod is connected with a base and a bottom plate, the bottom plate is in a rectangular plate-shaped structure, the telescopic rod is in threaded connection with an adjusting bolt for adjusting the height of the telescopic rod, the two groups of telescopic rods are arranged, the base is arranged on the upper end surface of the base, the lower end surface of the bottom plate is fixedly connected with a moving group, the moving groups are at least provided with four groups, the lower part of the second display column is connected with a power cord, the moving groups are connected with the lower end surface of the bottom plate in a threaded manner and are respectively connected with four corners of the lower end surface of the bottom plate, this accounting teaching show shelf, show and teaching effect are good, and convenient rotation, adaptability is good, and the practicality is strong.

Show shelf simple structure under the prior art is fixed structure mostly, is difficult to adjust, and the flexibility that uses is relatively poor, is difficult to satisfy user's user demand, and the practicality is lower.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides an accounting teaching display rack capable of projecting screens, which solves the problems in the background art.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: an accounting teaching display rack capable of being projected comprises a base, wherein a support frame is arranged in the middle of the upper surface of the base, a frame body is arranged at the top end of the support frame, the top of the left inner wall and the top of the right inner wall of the frame body are rotatably connected with a winding shaft, projection cloth is sleeved on the winding shaft, the bottom end of the projection cloth is connected with a movable plate, a positioning plate is arranged on the right side surface of the movable plate, a spring positioning pin is arranged on the rear side of the right side surface of the positioning plate, a first driving motor is arranged at the top of the right side surface of the frame body, the output end of the first driving motor is in key connection with the right end of the winding shaft, a sleeve is arranged in the middle of the upper surface of the frame body, a connecting rod is inserted in the middle of the front of the sleeve, a projector body is arranged at the bottom end of the connecting rod, a positioning bolt penetrates through the front side of the outer surface of the sleeve, and is arranged on the connecting rod in a threaded manner, the rear side of framework top inner wall and bottom inner wall all is provided with spacing slide rail, sliding connection has the teaching board on the spacing slide rail, tooth is installed to the rear side of teaching inboard surface, the middle part at the framework back is provided with the mounting bracket, the left and right sides of mounting bracket rear side inner wall all rotates and is connected with the pivot, drive gear has been cup jointed in the pivot, drive gear and tooth meshing, the left and right sides at the mounting bracket back all is provided with second driving motor, second driving motor's output and the rear end key of pivot are connected.

Preferably, a square plate is installed on the front side of the inner wall on the left side of the frame body, and a square groove is formed in the middle of the left side face of the movable plate.

Preferably, a moving groove is formed in the front side of the right side face of the frame body, and the width of the moving groove is matched with that of the moving plate.

Preferably, the top and the bottom of the right side surface of the frame body and the rear side of the right side surface of the positioning plate are both provided with positioning slots.

Preferably, threaded holes are formed in the front side of the outer surface of the sleeve and the left side and the right side of the outer surface of the connecting rod.

Preferably, the limiting slide rail is I-shaped, and mounting holes are formed in the left side and the right side of the outer side face of the limiting slide rail.

(III) advantageous effects

Compared with the prior art, the utility model provides an accounting teaching display rack capable of being projected on a screen, which has the following beneficial effects:

1. this can throw accounting teaching show shelf of screen, it rotates to drive the pivot through second driving motor for the pivot drives drive gear and rotates, drive gear drives two sets of teaching boards through the tooth and is the opposite direction along spacing slide rail and slides, has realized the regulation to two sets of teaching boards state of stretching out, has improved the controllability of device, makes the user can stretch out or accomodate the teaching board at any time, has made things convenient for the user to use the device, has improved the practicality of device.

2. This can throw accounting teaching show shelf of screen through setting up spacing slide rail, has realized that the slip to the teaching board is spacing, has guaranteed the stability when the teaching board slides, through setting up sleeve and connecting rod, has realized the regulation to the vertical position of projecting apparatus body for the user can adjust the vertical position of projecting apparatus body according to the user demand, has improved the flexibility of device, has made things convenient for the user to use the device.

3. This accounting teaching show shelf that can throw screen through setting up movable plate and locating plate, has realized the quick expansion to projection cloth, through setting up spring locating pin, has realized the location between framework and the locating plate, has guaranteed the stability after projection cloth expandes, drives the rolling axle through a driving motor and rotates for the rolling axle carries out the rolling to projection cloth, has realized the automatic rolling to projection cloth, has improved the degree of automation of device.

Drawings

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

fig. 2 is an exploded view of a portion of the structure of the present invention.

In the figure: 1. a base; 2. a support frame; 3. a frame body; 4. a winding shaft; 5. a projection cloth; 6. moving the plate; 7. positioning a plate; 8. a spring positioning pin; 9. a first drive motor; 10. a sleeve; 11. a connecting rod; 12. a projector body; 13. positioning a bolt; 14. a limiting slide rail; 15. a teaching board; 16. teeth; 17. a mounting frame; 18. a rotating shaft; 19. a transmission gear; 20. a second drive motor.

Detailed Description

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

Referring to fig. 1-2, the present invention provides a technical solution: an accounting teaching display rack capable of projecting screens comprises a base 1, wherein a support frame 2 is installed in the middle of the upper surface of the base 1, a frame body 3 is installed at the top end of the support frame 2, the top portions of the left inner wall and the right inner wall of the frame body 3 are rotatably connected with a winding shaft 4, a projection cloth 5 is sleeved on the winding shaft 4, a moving plate 6 is connected to the bottom end of the projection cloth 5, a positioning plate 7 is installed on the right side surface of the moving plate 6, a spring positioning pin 8 is arranged on the rear side of the right side surface of the positioning plate 7, the projection cloth 5 is rapidly unfolded through the arrangement of the moving plate 6 and the positioning plate 7, the positioning between the frame body 3 and the positioning plate 7 is realized through the arrangement of the spring positioning pin 8, the stability of the projection cloth 5 after being unfolded is ensured, a first driving motor 9 is arranged at the top portion of the right side surface of the frame body 3, the winding shaft 4 is driven to rotate through the first driving motor 9, so that the winding shaft 4 winds the projection cloth 5, the automatic winding of the projection cloth 5 is realized, the automation degree of the device is improved, the output end of the first driving motor 9 is in key connection with the right end of the winding shaft 4, the middle part of the upper surface of the frame body 3 is provided with the sleeve 10, the middle part of the front surface of the sleeve 10 is inserted with the connecting rod 11, the bottom end of the connecting rod 11 is provided with the projector body 12, the adjustment of the longitudinal position of the projector body 12 is realized by arranging the sleeve 10 and the connecting rod 11, so that a user can adjust the longitudinal position of the projector body 12 according to the use requirement, the flexibility of the device is improved, the user can conveniently use the device, the front side of the outer surface of the sleeve 10 is penetrated with the positioning bolt 13, the positioning bolt 13 penetrates through one end thread of the sleeve 10 and is arranged on the connecting rod 11, the rear sides of the top inner wall and the bottom inner wall of the frame body 3 are both provided with the limiting slide rail 14, by arranging the limiting slide rail 14, the sliding limit of the teaching board 15 is realized, the stability of the teaching board 15 during sliding is ensured, the teaching board 15 is connected on the limit slide rail 14 in a sliding manner, teeth 16 are installed on the rear side of the inner side surface of the teaching board 15, the middle part of the back surface of the frame body 3 is provided with the mounting frame 17, the left side and the right side of the inner wall of the back side of the mounting frame 17 are respectively and rotatably connected with a rotating shaft 18, a transmission gear 19 is sleeved on the rotating shaft 18, the transmission gear 19 is meshed with the teeth 16, the left side and the right side of the back surface of the mounting frame 17 are respectively provided with the second driving motor 20, the models of the first driving motor 9 and the second driving motor 20 are Y80M1-2, the rotating shaft 18 is driven to rotate by the second driving motor 20, the transmission gear 19 drives the two groups of teaching boards 15 to slide along the limit slide rail 14 in opposite directions by the teeth 16, the regulation of the extending state of the two groups of teaching boards 15 is realized, the adjustability of the device is improved, so that a user can stretch out or store the teaching board 15 at any time, the device is convenient to use, the practicability of the device is improved, and the output end of the second driving motor 20 is connected with the rear end key of the rotating shaft 18.

In order to ensure the stability of the moving plate 6 during moving, a square plate is arranged on the front side of the inner wall of the left side of the frame body 3, a square groove is formed in the middle of the left side of the moving plate 6, when the moving plate 6 moves, the moving plate 6 moves along the square plate through the square groove, the square plate limits the moving plate 6, and the stability of the moving plate 6 during moving is ensured.

In order to unfold the projection cloth 5, a moving groove is formed in the front side of the right side face of the frame body 3, the width of the moving groove is matched with that of the moving plate 6, when the projection cloth 5 is unfolded, the moving plate 6 moves in the moving groove, and the moving plate 6 drives the projection cloth 5 to unfold.

In order to realize the positioning between the frame body 3 and the positioning plate 7, the positioning slots are respectively arranged at the top and the bottom of the right side surface of the frame body 3 and the rear side of the right side surface of the positioning plate 7, and the spring positioning pin 8 is inserted into the frame body 3 and the positioning plate 7 through the positioning slots, so that the positioning between the frame body 3 and the positioning plate 7 is realized.

In order to realize the positioning between the sleeve 10 and the connecting rod 11, the utility model is provided with threaded holes at the front side of the outer surface of the sleeve 10 and at the left side and the right side of the outer surface of the connecting rod 11, and the positioning bolt 13 fixes the sleeve 10 and the connecting rod 11 through the threaded holes, thereby realizing the positioning between the sleeve 10 and the connecting rod 11.

In order to ensure the stability of the teaching board 15 during sliding, the limiting slide rail 14 is I-shaped, the left side and the right side of the outer side surface of the limiting slide rail 14 are both provided with mounting holes, when the teaching board 15 slides, the teaching board 15 slides along the limiting slide rail 14, the limiting slide rail 14 limits the teaching board 15, and the stability of the teaching board 15 during sliding is ensured.

The electrical components presented in the document are all electrically connected with an external master controller and 220V mains, and the master controller can be a conventional known device controlled by a computer or the like.

When the adjustable teaching board is used, a user adjusts the extending states of the two groups of teaching boards 15 according to the use requirement, the second driving motor 20 is started, the output end of the second driving motor 20 rotates to drive the rotating shaft 18 to rotate, the rotating shaft 18 drives the transmission gear 19 to rotate, the transmission gear 19 drives the two groups of teaching boards 15 to slide along the limiting slide rail 14 in the opposite direction through the teeth 16, the extending states of the two groups of teaching boards 15 are adjusted, after the adjustment is finished, the user pulls the spring positioning pin 8 towards the right side to disconnect the frame body 3 from the positioning board 7, after the disconnection, the movable board 6 moves downwards along the square board under the action of the self weight, the movable board 6 drives the projection cloth 5 to unfold, after the unfolding, the user positions the frame body 3 and the positioning board 7 through the spring positioning pin 8, then, the user twists the positioning bolt 13 anticlockwise to disconnect the sleeve 10 from the connecting rod 11, after the disconnection, the user stimulates connecting rod 11 forward, and connecting rod 11 drives projecting apparatus body 12 and removes to the outside, removes corresponding position after, and the user fixes a position sleeve 10 and connecting rod 11 through positioning bolt 13, then, and the user uses the teaching show board to teach.

In conclusion, this can throw accounting teaching show shelf of screen, it rotates to drive pivot 18 through second driving motor 20 for pivot 18 drives drive gear 19 and rotates, drive gear 19 drives two sets of teaching boards 15 through tooth 16 and is the opposite direction along spacing slide rail 14 and slides, the regulation to two sets of teaching boards 15 states of stretching out has been realized, the controllability of device has been improved, make the user can stretch out or accomodate teaching board 15 at any time, made things convenient for the user to use the device, the practicality of device has been improved.

This can throw accounting teaching show shelf of screen, through setting up spacing slide rail 14, it is spacing to the slip of teaching board 15 to have realized, stability when having guaranteed teaching board 15 and sliding, through setting up sleeve 10 and connecting rod 11, realized the regulation to the vertical position of projecting apparatus body 12 for the user can adjust the vertical position of projecting apparatus body 12 according to the user demand, has improved the flexibility of device, has made things convenient for the user to use the device.

This accounting teaching show shelf that can throw screen, through setting up movable plate 6 and locating plate 7, realized the quick expansion to projection cloth 5, through setting up spring locating pin 8, realized the location between framework 3 and the locating plate 7, guaranteed the stability after projection cloth 5 expandes, drive rolling axle 4 through first driving motor 9 and rotate for rolling axle 4 carries out the rolling to projection cloth 5, realized the automatic rolling to projection cloth 5, the degree of automation of device has been improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an accounting teaching show shelf that can throw the screen, includes base (1), the mid-mounting of base (1) upper surface has support frame (2), its characterized in that: the top end of the supporting frame (2) is provided with a frame body (3), the top parts of the left inner wall and the right inner wall of the frame body (3) are rotatably connected with a winding shaft (4), the winding shaft (4) is sleeved with projection cloth (5), the bottom end of the projection cloth (5) is connected with a movable plate (6), the right side surface of the movable plate (6) is provided with a positioning plate (7), the rear side of the right side surface of the positioning plate (7) is provided with a spring positioning pin (8), the top part of the right side surface of the frame body (3) is provided with a first driving motor (9), the output end of the first driving motor (9) is in key connection with the right end of the winding shaft (4), the middle part of the upper surface of the frame body (3) is provided with a sleeve (10), the middle part of the front of the sleeve (10) is spliced with a connecting rod (11), and the bottom end of the connecting rod (11) is provided with a projector body (12), a positioning bolt (13) is arranged on the front side of the outer surface of the sleeve (10) in a penetrating way, the positioning bolt (13) penetrates through one end of the sleeve (10) and is arranged on the connecting rod (11) in a penetrating way, the rear sides of the top inner wall and the bottom inner wall of the frame body (3) are provided with limiting slide rails (14), the limiting slide rail (14) is connected with a teaching board (15) in a sliding way, teeth (16) are arranged on the rear side of the inner side surface of the teaching board (15), an installation rack (17) is arranged in the middle of the back of the frame body (3), the left side and the right side of the inner wall of the rear side of the installation rack (17) are both rotatably connected with a rotating shaft (18), a transmission gear (19) is sleeved on the rotating shaft (18), the transmission gear (19) is meshed with the teeth (16), the left side and the right side of the back of the mounting rack (17) are respectively provided with a second driving motor (20), the output end of the second driving motor (20) is connected with the rear end key of the rotating shaft (18).

2. The accounting teaching show shelf of claim 1, wherein: a square plate is installed on the front side of the inner wall of the left side of the frame body (3), and a square groove is formed in the middle of the left side face of the moving plate (6).

3. The accounting teaching show shelf of claim 1, wherein: the front side of the right side face of the frame body (3) is provided with a moving groove, and the width of the moving groove is matched with that of the moving plate (6).

4. The accounting teaching show shelf of claim 1, wherein: and positioning slots are formed in the top and the bottom of the right side surface of the frame body (3) and the rear side of the right side surface of the positioning plate (7).

5. The accounting teaching show shelf of claim 1, wherein: threaded holes are formed in the front side of the outer surface of the sleeve (10) and the left side and the right side of the outer surface of the connecting rod (11).

6. The accounting teaching display rack capable of projecting screens of claim 1, wherein: the limiting slide rail (14) is I-shaped, and mounting holes are formed in the left side and the right side of the outer side face of the limiting slide rail (14).