CN215341538U

CN215341538U - Display device for mathematics

Info

Publication number: CN215341538U
Application number: CN202121025801.5U
Authority: CN
Inventors: 刘航; 桑松浩; 夏冰心
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-14
Filing date: 2021-05-14
Publication date: 2021-12-28
Anticipated expiration: 2031-05-14

Abstract

The utility model discloses a display device for mathematics, which comprises a base, wherein universal wheels are installed at the bottom end of the base, a protective shell is installed at the top end of the base, a motor is installed inside the protective shell, a rotating shaft is installed at the power output end of the motor, a first threaded rod is rotatably connected inside the protective shell, a first transmission belt is movably connected to the surface of the first threaded rod, the first threaded rod and the rotating shaft are in transmission connection through the first transmission belt, a second threaded rod is rotatably connected inside the protective shell, a second transmission belt is movably connected to the surface of the second threaded rod, and the second threaded rod and the rotating shaft are in transmission connection through the second transmission belt. According to the utility model, through the matched arrangement of the U-shaped frame, the rotating rod, the first gear block, the supporting block, the first fixing rod, the second gear block and the L-shaped block, the inclination angle of the display board can be adjusted, so that the information written on the display board can be conveniently displayed.

Description

Display device for mathematics

Technical Field

The utility model relates to the technical field of mathematics teaching equipment, in particular to a display device for mathematics.

Background

Mathematics education is the subject of studying the practice and methods of mathematical education. Also, mathematicians are also concerned with the development of tools and their research that facilitate such practices. Mathematics education is one of the subjects of intense debate in modern society.

The prior mathematical display device can be conveniently moved when in use, but the prior mathematical display device has the following problems in the use process:

1. when the current display device for mathematics is used, the height of the display board is often not convenient to adjust, so that users with different heights are not convenient to use.

2. Meanwhile, when the current display device for mathematics is used, the two sides of the display board are not convenient to use, and the practicability is poor.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a math display device to solve the problems of the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: a display device for mathematics comprises a base, universal wheels are installed at the bottom end of the base, a protective shell is installed at the top end of the base, a motor is installed inside the protective shell, a rotating shaft is installed at the power output end of the motor, a first threaded rod is rotatably connected inside the protective shell, a first transmission belt is movably connected to the surface of the first threaded rod, the first threaded rod is in transmission connection with the rotating shaft through the first transmission belt, a second threaded rod is rotatably connected inside the protective shell, a second transmission belt is movably connected to the surface of the second threaded rod, the second threaded rod is in transmission connection with the rotating shaft through the second transmission belt, a movable block is in threaded connection with the surfaces of the first threaded rod and the second threaded rod, a fixed column is installed at the top end of the movable block and penetrates through the protective shell, a U-shaped frame is installed at the top end of the fixed column, an L-shaped block is arranged at the right side of the U-shaped frame, a first locking nail is arranged inside the L-shaped block, a rotating rod is rotatably connected inside the L-shaped block, the end of the rotating rod is rotatably connected inside the U-shaped frame, the surface of the rotating rod is provided with a first gear block, a supporting block is arranged on the inner side of the U-shaped frame, first fixing rods are arranged on two sides of the supporting block, and the first fixed rod is rotatably connected inside the U-shaped frame, the surface of the first fixed rod is provided with a second gear block, the second gear block is meshed with the first gear block, the top end of the supporting block is provided with a fixing frame, a second fixed rod is arranged at the inner side of the fixed frame, a display board is arranged on the surface of the second fixed rod, locking devices are arranged at the two ends of the fixed frame, and four locking devices are arranged, the locking devices are symmetrically arranged by using the center of the second fixing rod, and the front surface of the protective shell is provided with a protective door.

Locking device includes the U-shaped piece, the U-shaped piece is installed at the both ends of fixed frame, the inside swing joint of U-shaped piece has the check lock lever, and the check lock lever runs through fixed frame, the surface mounting of check lock lever has supplementary piece, install the spring between supplementary piece and the U-shaped piece.

Preferably, the protective shell is internally provided with a sliding chute matched with the movable block.

Preferably, a bearing matched with the rotating rod is welded and installed inside the U-shaped frame.

Preferably, the inside of show board is seted up the locking groove with the lock lever looks adaptation.

Preferably, a second locking nail is arranged inside the U-shaped block.

Preferably, the inside of protective housing installs respectively with the stopper of first threaded rod and second threaded rod looks adaptation.

Compared with the prior art, the utility model provides a display device for mathematics, which has the following beneficial effects:

1. the display board is rotated by the second fixing rod and is adjusted by the locking device, so that the user can conveniently use the two sides of the display board.

2. According to the utility model, through the arrangement of the lifting mechanism in the protective shell, a user can conveniently adjust the height of the display board, so that the display board is convenient for users with different heights to use.

3. According to the utility model, through the matched arrangement of the U-shaped frame, the rotating rod, the first gear block, the supporting block, the first fixing rod, the second gear block and the L-shaped block, the inclination angle of the display board can be adjusted, so that the information written on the display board can be conveniently displayed.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the protective shell and U-shaped frame of the present invention;

FIG. 3 is an enlarged view of the utility model at A in FIG. 2.

In the figure: 1. a base; 2. a protective shell; 3. a motor; 4. a first threaded rod; 5. a first drive belt; 6. a second threaded rod; 7. a second belt; 8. a movable block; 9. fixing a column; 10. a U-shaped frame; 11. a rotating rod; 12. a first gear block; 13. a support block; 14. a first fixing lever; 15. a second gear block; 16. a fixing frame; 17. a second fixing bar; 18. a display board; 19. a locking device; 1901. a U-shaped block; 1902. a locking lever; 1903. an auxiliary block; 1904. a spring.

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. 1-3, an embodiment of the present invention is shown: a display device for mathematics comprises a base 1, universal wheels are installed at the bottom end of the base 1, a protective shell 2 is installed at the top end of the base 1, a motor 3 is installed inside the protective shell 2, a rotating shaft is installed at the power output end of the motor 3, a first threaded rod 4 is rotatably connected inside the protective shell 2, a first transmission belt 5 is movably connected on the surface of the first threaded rod 4, the first threaded rod 4 is in transmission connection with the rotating shaft through the first transmission belt 5, a second threaded rod 6 is rotatably connected inside the protective shell 2, a second transmission belt 7 is movably connected on the surface of the second threaded rod 6, the second threaded rod 6 is in transmission connection with the rotating shaft through the second transmission belt 7, a movable block 8 is in threaded connection with the surfaces of the first threaded rod 4 and the second threaded rod 6, a fixed column 9 is installed at the top end of the movable block 8, the fixed column 9 penetrates through the protective shell 2, and a U-shaped frame 10 is installed at the top end of the fixed column 9, an L-shaped block is arranged on the right side of the U-shaped frame 10, a first locking nail is arranged inside the L-shaped block, a rotating rod 11 is rotatably connected inside the L-shaped block, the end of the rotating rod 11 is rotatably connected inside the U-shaped frame 10, a first gear block 12 is arranged on the surface of the rotating rod 11, a supporting block 13 is arranged on the inner side of the U-shaped frame 10, first fixing rods 14 are arranged on two sides of the supporting block 13, the first fixing rods 14 are rotatably connected inside the U-shaped frame 10, a second gear block 15 is arranged on the surface of the first fixing rods 14, the second gear block 15 is meshed with the first gear block 12, a fixing frame 16 is arranged at the top end of the supporting block 13, a second fixing rod 17 is arranged on the inner side of the fixing frame 16, a display plate 18 is arranged on the surface of the second fixing rod 17, locking devices 19 are arranged at two ends of the fixing frame 16, the number of the locking devices 19 is four, the locking devices 19 are symmetrically arranged with the center of the second fixing rod 17, the front of the protective shell 2 is provided with a protective door.

Locking device 19 includes U-shaped piece 1901, and U-shaped piece 1901 is installed at the both ends of fixed frame 16, and the inside swing joint of U-shaped piece 1901 has check lock lever 1902, and check lock lever 1902 runs through fixed frame 16, and the surface mounting of check lock lever 1902 has supplementary piece 1903, installs spring 1904 between supplementary piece 1903 and the U-shaped piece 1901, through rotating show board 18 by second dead lever 17, and under cooperation locking device 19's regulation, can the person of facilitating the use the two-sided of show board 18 uses.

In this implementation, the inside of protecting crust 2 is offered with the spout of 8 looks adaptations of movable block, the movable block 8 of being convenient for is in the inside stable removal of protecting crust 2.

In this embodiment, a bearing adapted to the rotating rod 11 is welded inside the U-shaped frame 10, so that the rotating rod 11 can rotate stably through the bearing.

In this embodiment, a locking groove adapted to locking rod 1902 is formed in display board 18, so that locking rod 1902 can lock and fix display board 18.

In this embodiment, a second locking pin is disposed inside the U-shaped block 1901, and the locking rod 1902 can be locked by the second locking pin.

In this implementation, the inside of protecting crust 2 installs respectively with the stopper of first threaded

rod

4 and 6 looks adaptations of second threaded rod for first threaded rod 4 and second threaded rod 6 are by the stable rotation of stopper.

The working principle is as follows: the display device for mathematics, through starting the motor 3, the rotating shaft drives the first transmission belt 5 and the second transmission belt 7 to rotate simultaneously, the first transmission belt 5 and the second transmission belt 7 drive the first threaded rod 4 and the second threaded rod 6 to rotate simultaneously in the same direction respectively, the first threaded rod 4 and the second threaded rod 6 drive the movable block 8 to move up and down in the protective shell 2, then the movable block 8 drives the fixed column 9 to move up and down, thereby facilitating the users to adjust the height of the display board 18, facilitating the use of the users with different heights, through rotating the rotating rod 11, the first gear block 12 drives the second gear block 15 to rotate the first fixed rod 14, the first fixed rod 14 drives the supporting block 13 to rotate, thereby enabling the users to adjust the inclination angle of the display board 18, and facilitating the display of the information written on the display board 18, the rotating rod 11 is locked by locking the first locking nail in the L-shaped block, so that the first gear block 12 is blocked with the second gear block 15 to prevent the display board 18 from being adjusted in inclination angle, the display board 18 moves due to the influence of gravity, by first loosening the second locking pin, pulling the locking rod 1902, the locking rod 1902 is moved out of the locking slot formed in the display board 18, and the second locking pin is locked, at this time, the spring 1904 is pressed by the auxiliary block 1903, then display board 18 is turned 180 degrees by second fastening rod 17, so that the locking groove inside display board 18 is aligned with locking rod 1902, and then the second locking pin is unscrewed, because spring 1904's counter force for supplementary piece 1903 drives check lock bar 1902 and moves into the inside locking groove of seting up of show board 18, just can lock its show board 18 fixed, by above mode, can the person of facilitating the use to the two-sided use of show board 18.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims

1. A display device for mathematics, includes base (1), its characterized in that: the universal wheel is installed to the bottom of base (1), protective housing (2) is installed on the top of base (1), the internally mounted of protective housing (2) has motor (3), the pivot is installed to the power take off of motor (3), the inside of protective housing (2) rotates and is connected with first threaded rod (4), the surperficial swing joint of first threaded rod (4) has first drive belt (5), first threaded rod (4) and pivot are connected through first drive belt (5) transmission, the inside of protective housing (2) rotates and is connected with second threaded rod (6), the surperficial swing joint of second threaded rod (6) has second drive belt (7), second threaded rod (6) and pivot are connected through second drive belt (7) transmission, the surperficial threaded connection of first threaded rod (4) and second threaded rod (6) has movable block (8), a fixed column (9) is installed at the top end of the movable block (8), the fixed column (9) penetrates through the protective shell (2), a U-shaped frame (10) is installed at the top end of the fixed column (9), an L-shaped block is installed on the right side of the U-shaped frame (10), a first locking nail is arranged inside the L-shaped block, a rotating rod (11) is rotatably connected inside the L-shaped block, the end head of the rotating rod (11) is rotatably connected inside the U-shaped frame (10), a first gear block (12) is installed on the surface of the rotating rod (11), a supporting block (13) is arranged on the inner side of the U-shaped frame (10), first fixed rods (14) are installed on two sides of the supporting block (13), the first fixed rods (14) are rotatably connected inside the U-shaped frame (10), a second gear block (15) is installed on the surface of the first fixed rods (14), and the second gear block (15) is meshed with the first gear block (12), a fixed frame (16) is installed at the top end of the supporting block (13), second fixing rods (17) are installed on the inner side of the fixed frame (16), display plates (18) are arranged on the surfaces of the second fixing rods (17), locking devices (19) are installed at two ends of the fixed frame (16), the number of the locking devices (19) is four, the locking devices (19) are symmetrically arranged with respect to the center of the second fixing rods (17), and a protective door is arranged on the front face of the protective shell (2);

locking device (19) include U-shaped piece (1901), U-shaped piece (1901) is installed at the both ends of fixed frame (16), the inside swing joint of U-shaped piece (1901) has check lock lever (1902), and check lock lever (1902) run through fixed frame (16), the surface mounting of check lock lever (1902) has supplementary piece (1903), install spring (1904) between supplementary piece (1903) and U-shaped piece (1901).

2. A mathematical display apparatus as defined in claim 1, wherein: the protective shell (2) is internally provided with a sliding chute matched with the movable block (8).

3. A mathematical display apparatus as defined in claim 1, wherein: and a bearing matched with the rotating rod (11) is welded and installed in the U-shaped frame (10).

4. A mathematical display apparatus as defined in claim 1, wherein: the inside of show board (18) is seted up the locking groove with lock lever (1902) looks adaptation.

5. A mathematical display apparatus as defined in claim 1, wherein: and a second locking nail is arranged in the U-shaped block (1901).

6. A mathematical display apparatus as defined in claim 1, wherein: the inside of protective housing (2) is installed respectively with the stopper of first threaded rod (4) and second threaded rod (6) looks adaptation.