Drawing calculator of TFT (Thin Film Transistor) screen

Abstract

The drawing calculator of the TFT screen comprises a calculator body, a square plate is arranged on the side face of the calculator body, a sleeve is fixedly connected to the top of the square plate, a shaft body penetrates through the interior of the sleeve, a connecting block is arranged on the side face of the shaft body, a rotating plate is fixedly connected to the side face of the connecting block, and a magnetic attraction plate is embedded in the surface of the rotating plate. And a metal plate is embedded in the square plate. According to the drawing calculator of the TFT screen, the square plate is additionally arranged on the side face of the calculator body, when the drawing calculator needs to be carried or needs to be hung at a needed position, only the rotating plate needs to be directly rotated, so that the rotating plate drives the shaft body to rotate in the sleeve through the connecting block, and therefore the drawing calculator is convenient to carry. At the moment, the calculator body can be hung at the needed position, the rotating plate is rotated, the magnetic suction plate on the surface of the rotating plate and the metal plate on the surface of the square plate are firmly attracted, the calculator can be fixed at the position needing hanging, and the calculator is more convenient to carry and place.

Description

Technical Field

[0001] This utility model belongs to the field of graphing calculator technology, and in particular relates to a graphing calculator with a TFT screen. Background Technology

[0002] A graphing calculator is a handheld calculator capable of plotting function graphs, solving equations and systems of equations, and performing various other operations. It can display multiple function graphs simultaneously and supports a variety of calculation functions, including algebra, geometry, statistics, calculus, and trigonometric functions.

[0003] Currently available graphing calculators have the following problems when used:

[0004] 1. Traditional graphing calculators can only be carried in a bag or held in the hand. When they need to be used, they need to be taken out of the backpack. They can only be placed on a table for use, which is inconvenient to carry and place.

[0005] 2. Traditional graphing calculators usually require a protective cover to be installed on the surface of the calculator body after use. However, when the calculator body is placed inside a backpack, the protective cover is difficult to fix on the surface of the calculator body due to shaking during walking, and it is easy for it to fall off the calculator. Its fixation effect is poor. Utility Model Content

[0006] The purpose of this invention is to provide a TFT screen graphing calculator to solve the technical problems mentioned in the background art.

[0007] To achieve the above objectives, the specific technical solution of this utility model is as follows: A TFT screen drawing calculator includes a calculator body, a square plate on the side of the calculator body, a sleeve fixedly connected to the top of the square plate, a shaft penetrating inside the sleeve, a connecting block on the side of the shaft, a rotating plate fixedly connected to the side of the connecting block, a magnetic plate embedded on the surface of the rotating plate, and a metal plate embedded inside the square plate.

[0008] Preferably, the calculator body has a protective cover on its surface, a first mounting block is fixedly connected to the side of the protective cover, a first fixing block is fixedly connected to the side of the protective cover, a second mounting block is fixedly connected to the side of the calculator body, a second fixing block is fixedly connected to the side of the protective cover, a fixing rod is fixedly connected to the surface of the first mounting block, a ball head is fixedly connected to one end of the fixing rod, a fixing groove is formed on the surface of the second mounting block, and a sliding groove is formed at the top of the fixing groove.

[0009] Preferably, a slot is formed on the side of the first mounting block, and a card block is fixedly connected to the side of the second mounting block, with the card block embedded inside the slot.

[0010] Preferably, a handle is fixedly connected to the top of the protective cover, and the handle is arc-shaped.

[0011] Preferably, a pull plate is fixedly connected to the bottom of the rotating plate, and the pull plate is rectangular in shape.

[0012] Preferably, a slider is fixedly connected to the side of the protective cover, and a groove is formed on the side of the calculator body, with the slider embedded inside the groove.

[0013] The TFT screen graphing calculator of this utility model has the following advantages:

[0014] 1. A TFT screen drawing calculator, by adding a square plate to the side of the calculator body, a sleeve is installed on the top of the square plate, a shaft passes through the inside of the sleeve, a connecting block is added to the side of the shaft, a rotating plate is installed on the side of the connecting block, a magnetic plate is embedded on the surface of the rotating plate, and a metal plate is embedded inside the square plate. When it is necessary to carry the drawing calculator or hang it in a certain position, simply rotate the rotating plate, so that the rotating plate drives the shaft to rotate inside the sleeve through the connecting block. At this time, the calculator body can be hung in the desired position. Rotating the rotating plate again makes the magnetic plate on the surface of the rotating plate and the metal plate on the surface of the square plate firmly attracted, thus fixing it in the desired hanging position, making it more convenient to carry and place.

[0015] 2. This TFT screen drawing calculator features a protective cover on the surface of the calculator body. A first mounting block and a first fixing block are mounted on the side of the protective cover. A second mounting block and a second fixing block are mounted on the side of the calculator body. A fixing rod is mounted on the surface of the first mounting block, with a ball end attached to one end. A fixing groove is formed on the surface of the second mounting block, and a sliding groove is formed at the top of the fixing groove. After use, the protective cover is installed on the surface of the calculator body and fixed using the first and second mounting blocks. During sliding, the fixing rod slides into the sliding groove and finally into the fixing groove, thus initially fixing the cover. A second fixing is then achieved using the first and second fixing blocks, thus securing the protective cover to the calculator body and preventing it from detaching. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the metal plate structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the magnetic chuck structure of this utility model;

[0020] Figure 4 For the present utility model Figure 2 Enlarged view of section A in the middle;

[0021] Figure 5 For the present utility model Figure 2 Enlarged view of section B.

[0022] The markings in the diagram are as follows: 1. Calculator body; 2. Protective cover; 3. Handle; 4. First mounting block; 5. Second mounting block; 6. First fixing block; 7. Locking block; 8. Locking slot; 9. Square plate; 10. Rotating plate; 11. Metal plate; 12. Pull plate; 13. Second fixing block; 14. Magnetic suction plate; 15. Sleeve; 16. Slider; 17. Slide groove; 18. Shaft; 19. Connecting block; 20. Fixing rod; 21. Ball head; 22. Slide groove; 23. Fixing groove. Detailed Implementation

[0023] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0024] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0026] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0027] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0028] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a TFT screen graphing calculator.

[0029] like Figure 1-5 As shown, this utility model discloses a TFT screen graphing calculator, including a calculator body 1. A square plate 9 is provided on the side of the calculator body 1. A sleeve 15 is fixedly connected to the top of the square plate 9. A shaft 18 passes through the inside of the sleeve 15. A connecting block 19 is provided on the side of the shaft 18. A rotating plate 10 is fixedly connected to the side of the connecting block 19. A magnetic plate 14 is embedded on the surface of the rotating plate 10. A metal plate 11 is embedded inside the square plate 9. The calculator body 1 is modified by adding a square plate 9 to the side of the calculator body 1, installing a sleeve 15 on the top of the square plate 9, having the shaft 18 pass through the inside of the sleeve 15, and adding a connecting block 19 to the side of the shaft 18. A rotating plate 10 is mounted on the side, with a magnetic plate 14 embedded on its surface. A metal plate 11 is embedded inside the square plate 9. When the calculator needs to be carried or hung in a desired location, simply rotate the rotating plate 10. This will cause the rotating plate 10 to drive the shaft 18 to rotate inside the sleeve 15 via the connecting block 19. The calculator body 1 can then be hung in the desired location. Rotating the rotating plate 10 again will cause the magnetic plate 14 on the surface of the rotating plate 10 and the metal plate 11 on the surface of the square plate 9 to adhere firmly, thus fixing it in the desired location. This makes it more convenient to carry and place.

[0030] The calculator body 1 has a protective cover 2 on its surface. A first mounting block 4 and a first fixing block 6 are fixedly connected to the side of the protective cover 2. A second mounting block 5 and a second fixing block 13 are fixedly connected to the side of the calculator body 1. A fixing rod 20 is fixedly connected to the surface of the first mounting block 4, and a ball head 21 is fixedly connected to one end of the fixing rod 20. A fixing groove 23 is formed on the surface of the second mounting block 5, and a sliding groove 22 is formed at the top of the fixing groove 23. A protective cover 2 is added to the surface of the calculator body 1. A first mounting block 4 and a first fixing block 6 are installed on the side of the protective cover 2. A second mounting block 5 and a second fixing block 13 are installed on the side of the calculator body 1. Two fixing blocks 13, a fixing rod 20 is installed on the surface of the first mounting block 4, a ball head 21 is installed at one end of the fixing rod 20, a fixing groove 23 is opened on the surface of the second mounting block 5, and a sliding groove 22 is opened on the top of the fixing groove 23. After the calculator body 1 is finished, the protective cover 2 is installed on the surface of the calculator body 1 and fixed by the first mounting block 4 and the second mounting block 5. When sliding, the fixing rod 20 slides into the sliding groove 22 and finally slides into the fixing groove 23 to fix it initially. At this time, it is fixed a second time by the first fixing block 6 and the second fixing block 13. At this time, the protective cover 2 can be fixed on the calculator body 1 to prevent the protective cover 2 from falling off the calculator body 1.

[0031] The first mounting block 4 has a slot 8 on its side, and the second mounting block 5 has a fixed connection to the slot 7 on its side. The slot 7 is embedded in the slot 8. By opening the slot 8 on the side of the first mounting block 4 and installing the slot 7 on the side of the second mounting block 5, the first mounting block 4 and the second mounting block 5 can be fixed together by embedding the slot 7 in the slot 8.

[0032] The top of the protective cover 2 is fixedly connected to the handle 3. The handle 3 is arc-shaped. By installing the handle 3 on the top of the protective cover 2, the protective cover 2 can be easily moved by holding the handle 3.

[0033] A pull plate 12 is fixedly connected to the bottom of the rotating plate 10. The pull plate 12 is rectangular in shape. By installing the pull plate 12 at the bottom of the rotating plate 10, it is convenient to rotate the rotating plate 10 by holding the pull plate 12.

[0034] The protective cover 2 is fixedly connected to the slider 16 on the side, and the calculator body 1 has a slide groove 17 on the side. The slider 16 is embedded in the slide groove 17. By installing the slider 16 on the side of the protective cover 2 and the slide groove 17 on the side of the calculator body 1, when it is necessary to install the protective cover 2 on the calculator body 1, it is only necessary to slide the slider 16 embedded in the slide groove 17 to install the protective cover 2 on the calculator body 1.

[0035] The working principle of this TFT screen graphing calculator is as follows: When using the calculator, first hold handle 3 to pull the protective cover 2 off the calculator body 1. Then, press the button to start the graphing calculator. After use, simply replace the protective cover 2. The protective cover 2 is then installed on the calculator body 1 by sliding the slider 16 into the slide groove 17. It is then fixed by the first mounting block 4 and the second mounting block 5. During sliding, the fixing rod 20 slides into the slide groove 22 and finally into the fixing groove 23 for initial fixation. A second fixation is then achieved by the first fixing block 6 and the second fixing block 13. Finally, the locking block 7 is inserted into the locking slot 8 to complete the fixation. The first mounting block 4 and the second mounting block 5 are fixed together, at which point the protective cover 2 can be fixed to the calculator body 1 to prevent the protective cover 2 from falling off the calculator body 1. When it is necessary to carry the drawing calculator or hang it in a certain position, simply hold the pull plate 12 and rotate the rotating plate 10 directly, so that the rotating plate 10 drives the shaft 18 to rotate inside the sleeve 15 through the connecting block 19. At this time, the calculator body 1 can be hung in the desired position. Then rotate the rotating plate 10 so that the magnetic plate 14 on the surface of the rotating plate 10 and the metal plate 11 on the surface of the square plate 9 are firmly attracted, and it can be fixed in the desired hanging position, making it more convenient to carry and place.

[0036] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A TFT screen graphing calculator, comprising a calculator body (1), characterized in that: The calculator body (1) has a square plate (9) on its side. A sleeve (15) is fixedly connected to the top of the square plate (9). A shaft (18) passes through the inside of the sleeve (15). A connecting block (19) is provided on the side of the shaft (18). A rotating plate (10) is fixedly connected to the side of the connecting block (19). A magnetic plate (14) is embedded on the surface of the rotating plate (10). A metal plate (11) is embedded inside the square plate (9).

2. The TFT screen drawing calculator according to claim 1, characterized in that: The calculator body (1) has a protective cover (2) on its surface. The protective cover (2) is fixedly connected to a first mounting block (4) on its side. The protective cover (2) is fixedly connected to a first fixing block (6) on its side. The calculator body (1) is fixedly connected to a second mounting block (5) on its side. The protective cover (2) is fixedly connected to a second fixing block (13) on its side. The first mounting block (4) has a fixing rod (20) fixedly connected to its surface. One end of the fixing rod (20) is fixedly connected to a ball head (21). The second mounting block (5) has a fixing groove (23) on its surface. The top of the fixing groove (23) has a sliding groove (22).

3. The TFT screen graphing calculator according to claim 2, characterized in that: The first mounting block (4) has a slot (8) on its side, and the second mounting block (5) has a fixed connection to a card block (7) on its side, with the card block (7) embedded inside the slot (8).

4. The TFT screen graphing calculator according to claim 2, characterized in that: The top of the protective cover (2) is fixedly connected to a handle (3), and the handle (3) is arc-shaped.

5. The TFT screen drawing calculator according to claim 1, characterized in that: The bottom of the rotating plate (10) is fixedly connected to a pull plate (12), and the pull plate (12) is rectangular in shape.

6. The TFT screen graphing calculator according to claim 2, characterized in that: The protective cover (2) is fixedly connected to a slider (16) on its side, and a groove (17) is opened on the side of the calculator body (1), with the slider (16) embedded inside the groove (17).

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