Display device

Abstract

The utility model discloses a display device, relates to teaching appliance technical field, concretely including support base and display structure, support base includes fixed flat plate, fixed flat plate bottom is equipped with support leg, fixed flat plate one side is movably connected with the object table, the object table carries out the horizontal position fixation through limit rod, and the display structure is equipped with the display structure. A lifting plate is movably connected into an inner cavity of the fixed flat plate, a center pipe is fixed to the middle of the lifting plate and connected with the fixed flat plate through an electric telescopic rod, and electromagnets are evenly and fixedly connected to the two sides of the top of the lifting plate. According to the display device, through the arrangement of the display structure, rotation of the servo motor can drive the rotating roller fixedly connected with the display structure to rotate, rotation of the rotating roller enables the display belt to rotate, the purpose that the display surface of the display belt is changed under the condition that the display structure does not rotate is achieved, and use of the device is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching tools, in particular to a display device. Background Art

[0002] Business administration is the most common management profession in the market economy, mainly including the formulation of business strategies and internal behavior management. Business administration is highly applicable. When presenting business administration or teaching business administration, key knowledge is often written on the corresponding display teaching board for people to understand and interpret. Specifically, in interpreting business administration, some publicly available display devices for business administration teaching usually use rotation to change the display surface. However, when the display panel rotates, it requires a large space, which makes the display device easily limited in a small space. In addition, the rotation center of the current display panel is usually fixed, and the range required for the display panel to rotate is fixed, which reduces the adaptability of use. Based on this, the present application proposes a display device. Utility Model Content

[0003] The present invention provides a display device, which solves the problem that the display device proposed in the above background technology uses rotation to change the display surface, which requires a large space and is easily restricted in use; and the rotation center of the display panel is usually fixed, and the range required for the display panel to rotate is fixed, which reduces the adaptability of use.

[0004] The utility model provides the following technical solutions: a display device, comprising a support base and a display structure, the support base comprising a fixed plate, the bottom of the fixed plate is provided with support legs, one side of the fixed plate is movably connected to a storage platform, the storage platform is fixed in a horizontal position by a limit rod, a lifting plate is movably connected in the inner cavity of the fixed plate, a central tube is fixed in the middle of the lifting plate, the central tube is connected to the fixed plate by an electric telescopic rod, both sides of the top of the lifting plate are evenly fixedly connected with electromagnets, the top of the inner cavity of the fixed plate is provided with a through hole adapted to both the electromagnet and the central tube, the central tube extends to the outside of the fixed plate through the through hole, and a signal detector is fixed on one side of the top of the fixed plate;

[0005] The display structure includes a base plate, a socket adapted to the central tube is provided in the middle of the bottom of the base plate, and rotating columns are movably connected on both sides of the bottom of the base plate, and the rotating columns are adapted to the through holes. A handle is fixed to the bottom of the rotating column, and a touch sensor is provided on the handle. Springs are evenly fixed in the inner cavity of the base plate, and the top of the spring is in contact with the top of the rotating column; rollers are movably connected on both sides of the top of the base plate, and the two rollers are connected by a display belt transmission. The top of the base plate is connected to the top plate through a shaping plate, and the rollers are movably connected to the top plate, and the shaping plate is in contact with the inner side of the display belt; a signal generator is fixed on the side of the bottom of the base plate close to the signal detector.

[0006] Preferably, a connecting block is fixedly connected to one side of the fixed plate, the connecting block is movably connected to the end of the storage table, and there is a gap between the storage table and the fixed plate, a slide groove is provided on the outside of the storage table, and a limit rod is movably connected in the inner cavity of the slide groove, a slot is provided on the outside of the connecting block, the limit rod is adapted to the slot, and when the storage table is in a horizontal state, the slot and the slide groove are in an overlapping state.

[0007] Preferably, one end of the bottom plate is fixedly connected to a servo motor, and the end of the output shaft of the servo motor is fixedly connected to the middle of the bottom of a roller.

[0008] Preferably, the rotary column is an inverted convex structure, the spring is in contact with the bottom of the horizontal end of the rotary column, and the height of the rotary column is greater than the depth of the socket.

[0009] Preferably, a groove adapted to the handle is provided on a side of the through hole adapted to the electromagnet close to the handle, and a telescopic plate is fixed to the outside of the groove, with the top of the telescopic plate in contact with the bottom of the handle.

[0010] Preferably, the end of the shaping plate is an arc with an inward groove, and the inner diameter of the arc is the same as the outer diameter of the roller, the shaping plate contacts the inner side of the straight section of the display belt, the top of the display belt contacts the bottom of the top plate, the bottom of the display belt contacts the top of the bottom plate, and the side of the display belt close to the storage table is flush with the side of the bottom plate close to the storage table.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This display device, through the setting of the display structure, can drive the rotation of the servo motor to rotate the roller fixedly connected to it. The rotation of the roller causes the display belt to rotate, thereby achieving the purpose of changing the display surface of the display belt without rotating the display structure, thereby facilitating the use of the device.

[0013] 2. The display device can change the rotation center of the display structure by setting the rotating column and the fixed plate, so that the space required for the display structure to rotate is changed, thereby making the display device meet various needs and improving the adaptability of the display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of the structure of the utility model;

[0015] Figure 2 For the utility model structure Figure 1 Explosion diagram;

[0016] Figure 3 This is a cross-sectional diagram of a fixed flat plate structure of the utility model;

[0017] Figure 4 This is a schematic diagram of an explosion of a fixed flat plate structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the bottom of the lifting plate structure of the utility model;

[0019] Figure 6 This is a schematic diagram showing the bottom of the structure of the utility model;

[0020] Figure 7 This is a cross-sectional schematic diagram of the structural bottom plate of the utility model;

[0021] Figure 8 This is a schematic diagram showing a cross-section of the structure of the utility model.

[0022] In the figure: 1. Support leg; 2. Fixed plate; 3. Storage table; 4. Bottom plate; 5. Connecting block; 6. Limit rod; 7. Display belt; 8. Top plate; 9. Handle; 10. Center tube; 11. Electromagnet; 12. Signal detector; 13. Telescopic plate; 14. Electric telescopic rod; 15. Lifting plate; 16. Slide; 17. Through hole; 18. Jack; 19. Signal generator; 20. Servo motor; 21. Shaping plate; 22. Roller; 23. Spring; 24. Rotating column. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The utility model provides a display device, including a support base and a display structure, the support base includes a fixed plate 2, the bottom of the fixed plate 2 is provided with a support leg 1, the support leg 1 supports the device, one side of the fixed plate 2 is fixedly connected to a connecting block 5, the inner side of the connecting block 5 is movably connected to a rotating rod, the other end of the rotating rod is fixedly connected to a storage table 3, the storage table 3 is movably connected to the connecting block 5 through the rotating rod, under the action of an external force, the storage table 3 can make a circular motion along the rotating rod, and there is a gap between the storage table 3 and the fixed plate 2, the size of the gap can be designed according to demand, and is not limited here. The setting of the gap facilitates the rotation of the storage table 3 The outer side of the storage platform 3 is provided with a slide groove 16, and the inner cavity of the slide groove is movably connected to the limit rod 6. The outer side of the connecting block 5 is provided with a slot, and the limit rod 6 is adapted to the slot. When the storage platform 3 is in a horizontal state, the slot and the slide groove 16 are in an overlapping state. Under the action of external force, when the limit rod 6 is inserted into the slot, the position of the storage platform 3 can be fixed by using the limit rod 6, so that the storage platform 3 is in a horizontal state. When the display device is in use, the user can use the storage platform 3 to place sundries, which is convenient for the use of the display device. When the display device is not in use, the storage platform 3 can be in a folded state, saving the space occupied by the display device and facilitating the storage of the display device.

[0025] The fixed plate 2 is a hollow structure. A lifting plate 15 is movably connected to the inner cavity of the fixed plate 2. A central tube 10 is fixed to the middle of the lifting plate 15. The central tube 10 is connected to the fixed plate 2 via an electric telescopic rod 14. The extension and retraction of the electric telescopic rod 14 can change the position of the central tube 10 to which it is fixed. When the central tube 10 moves, it can drive the lifting plate 15 to which it is fixed to move. Electromagnets 11 are fixedly connected to both ends of the top of the lifting plate 15. The top of the inner cavity of the fixed plate 2 is provided with a through hole 17 that is compatible with both the electromagnet 11 and the central tube 10. When the top of the lifting plate 15 contacts the top of the inner cavity of the fixed plate 2, the top of the electromagnet 11 is flush with the top of the fixed plate 2. The top of the central tube 10 is located outside the fixed plate 2. Under the action of the electric telescopic rod 14, the central tube 10 can be completely located within the inner cavity of the fixed plate 2.

[0026] A signal detector 12 is fixed to one side of the top of the fixed plate 2. The display structure includes a base plate 4. A signal generator 19 is fixed to the side of the bottom of the base plate 4 near the signal detector 12. When the fixed plate 2 and the base plate 4 are aligned, the signal emitted by the signal generator 19 can be detected by the signal detector 12. A socket 18 adapted to the central tube 10 is provided in the middle of the bottom of the base plate 4. When the fixed plate 2 and the base plate 4 are aligned, the top end of the central tube 10 can be inserted into the socket 18 under the action of the electric telescopic rod 14. At this time, the base plate 4 and the fixed plate 2 are in a state of active connection. Under the action of external force, the display structure can rotate along the central tube 10. There is damping between the central tube 10 and the socket 18, which removes the restriction on the display structure and allows the display structure to remain in the same position.

[0027] Movable grooves are evenly provided on both sides of the bottom of the base plate 4, and a rotating column 24 is movably connected in the inner cavity of the movable groove. The rotating column 24 is adapted to the through hole 17, and the rotating column 24 is an inverted convex structure. The horizontal end of the rotating column 24 can limit the rotating column 24 to prevent the rotating column 24 from separating from the movable groove. The bottom end of the inner cavity of the movable groove is evenly fixedly connected with a spring 23, and the top of the spring 23 contacts the bottom of the horizontal end of the rotating column 24. Under the action of the rebound force of the spring 23, the rotating column 24 can be completely located in the inner cavity of the movable groove.

[0028] When the bottom plate 4 is aligned with the fixed plate 2, the bottom of the rotary column 24 contacts the top of the electromagnet 11, and the bottom of the rotary column 24 is fixedly connected to the handle 9. The handle 9 is provided with a touch sensor. The through hole 17 adapted to the electromagnet 11 is provided with a groove adapted to the handle 9 on the side close to the handle 9. The outside of the groove is fixed with a telescopic plate 13. The top of the telescopic plate 13 contacts the bottom of the handle 9. Through the setting of the handle 9, when the user touches and presses the handle 9, the electric telescopic rod 14 can be in a retracted state, and the electric telescopic rod 14 drives the electromagnet 11 through the lifting plate 15 Move downward, the rotating column 24 can move into the inner cavity of the through hole 17 until the central tube 10 is completely separated from the insertion hole 18. At this time, the rotation center of the bottom plate 4 becomes the rotating column 24 inserted into the through hole 17, and the electromagnet 11 in contact with the rotating column 24 is in an energized state. The energization of the electromagnet 11 causes the electromagnet 11 and the rotating column 24 to be magnetically attracted to each other, fixing the position of the rotating column 24. The material of the rotating column 24 can be metal iron, and the height value of the rotating column 24 is greater than the depth value of the insertion hole 18. The size of the rotating column 24 can be designed according to needs and is not limited here.

[0029] From the above description, it can be seen that when the display device is in use, the rotation center of the display structure can change, thereby changing the space required for the display structure to rotate, so that the display device can meet various needs and improve the adaptability of the display device.

[0030] Rollers 22 are movably connected to both sides of the top of the base plate 4. The two rollers 22 are connected by a transmission system via the display belt 7. A servo motor 20 is fixedly connected to one end of the base plate 4. The end of the output shaft of the servo motor 20 is fixedly connected to the middle of the bottom of one roller 22 via a reducer. Through the configuration of the servo motor 20, the rotation of the servo motor 20 can drive the roller 22 fixedly connected to it. The rotation of the roller 22 causes the display belt 7 to rotate, achieving the purpose of changing the display surface of the display belt 7 without rotating the display structure, thus facilitating the use of the device. When the display device is in use, teachers majoring in business administration can use the display belt 7 for writing. The material of the display belt 7 can be TPU writing film.

[0031] A shaping plate 21 is fixedly connected to the top of the base plate 4. The end of the shaping plate 21 is an arc-shaped, inwardly grooved arc, and the inner diameter of the arc is the same as the outer diameter of the roller 22. The shaping plate 21 contacts the inner side of the straight section of the display strip 7, and the bottom of the display strip 7 contacts the top of the base plate 4. The side of the display strip 7 near the storage table 3 is flush with the side of the base plate 4 near the storage table 3. The setting of the shaping plate 21 can support the display strip 7, so that the straight section of the display strip 7 remains horizontal under pressure, facilitating writing on the display strip 7.

[0032] The top of the shaping plate 21 is fixedly connected to the top plate 8 , the rotating roller 22 is movably connected to the top plate 8 , and the top of the display belt 7 is in contact with the bottom of the top plate 8 .

[0033] There is damping between the rotary column 24 and the bottom plate 4 and between the central tube 10 and the bottom plate 4, which removes the restriction on the display structure and the position of the display structure can remain unchanged.

[0034] The electrical components involved in this application are all existing technologies. Those skilled in the art are familiar with their connection methods. Through these people, all the electrical components in this application are connected to their corresponding power supplies through wires, and according to actual conditions, appropriate controllers are selected to meet control requirements. The specific connections and control sequences are described below. The electrical connections between the electrical components are completed in a sequential working order. The detailed connection methods are well known in the art. The following mainly introduces the working principles and processes, and no further explanation of electrical control is given.

[0035] To sum up: when a teacher majoring in business administration uses the display device, the teacher can write on the display belt 7. When the writing position of the display belt 7 needs to be changed, the user starts the servo motor 20, and the servo motor 20 drives the roller 22 fixedly connected to it to rotate. The rotation of the roller 22 causes the display belt 7 to rotate, and the writing position of the display belt 7 is changed, thereby achieving the purpose of changing the display surface of the display belt 7 without rotating the display structure, thereby facilitating the use of the device.

[0036] When the user needs to rotate the display structure, the rotation center of the display structure can be the central tube 10. If the display structure cannot use the central tube 10 as the rotation center, the user presses down the handle 9 at the appropriate position, and the touch sensor detects the pressure. The electromagnet 11 in contact with the rotating column 24 adapted to the handle 9 is in an energized state, and the electromagnet 11 and the rotating column 24 are magnetically attracted to each other, and the electric telescopic rod 14 contracts. The electric telescopic rod 14 drives the central tube 10 to move downward, and the central tube 10 drives the lifting plate 15 to move downward. The lifting plate 15 drives the rotating column 24 to move downward through the electromagnet 11 until the central tube 10 and the lifting plate 15 are aligned. The jack 18 is completely separated, and the bottom end of the rotating column 24 is inserted into the inner cavity of the through hole 17. At this time, the user can rotate the display structure with the rotating column 24 as the rotation center. When the display structure is realigned with the fixed plate 2, the signal detector 12 can detect the signal emitted by the signal generator 19, and the electric telescopic rod 14 extends, and the electric telescopic rod 14 drives the central tube 10 to move upward until the central tube 10 is reset. The energized electromagnet 11 is in the de-energized state, and the rotating column 24 is reset under the action of the rebound force of the spring 23 in contact with it. At this time, the display structure can be re-rotated with the central tube 10 as the rotation center.

[0037] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology and will not be described in detail here. The content not described in detail in this specification belongs to the existing technology known to professional and technical personnel in this field. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and modifications can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A display device comprising a support base and a display structure, characterized in that: The support base comprises a fixed plate (2), a supporting leg (1) is provided at the bottom of the fixed plate (2), a storage platform (3) is movably connected to one side of the fixed plate (2), the storage platform (3) is fixed in a horizontal position by a limit rod (6), a lifting plate (15) is movably connected in the inner cavity of the fixed plate (2), a central tube (10) is fixed in the middle of the lifting plate (15), the central tube (10) is connected to the fixed plate (2) through an electric telescopic rod (14), electromagnets (11) are evenly fixedly connected on both sides of the top of the lifting plate (15), a through hole (17) adapted to both the electromagnet (11) and the central tube (10) is provided at the top of the inner cavity of the fixed plate (2), the central tube (10) extends to the outside of the fixed plate (2) through the through hole (17), and a signal detector (12) is fixed on one side of the top of the fixed plate (2); The display structure comprises a bottom plate (4), wherein a socket (18) adapted to the central tube (10) is provided in the middle of the bottom of the bottom plate (4), a rotary column (24) is movably connected to both sides of the bottom of the bottom plate (4), the rotary column (24) is adapted to the through hole (17), a handle (9) is fixed to the bottom of the rotary column (24), a touch sensor is provided on the handle (9), and a spring (23) is evenly fixed in the inner cavity of the bottom plate (4), and the top of the spring (23) is in contact with the rotary column (24). The top of the rotating column (24) is in contact with the top of the bottom plate (4); both sides of the top of the bottom plate (4) are movably connected with rollers (22), the two rollers (22) are connected by transmission through the display belt (7), the top of the bottom plate (4) is connected to the top plate (8) through a shaping plate (21), the rollers (22) are movably connected to the top plate (8), and the shaping plate (21) is in contact with the inner side of the display belt (7); a signal generator (19) is fixed on the side of the bottom of the bottom plate (4) close to the signal detector (12).

2. A display device according to claim 1, characterized in that: A connecting block (5) is fixedly connected to one side of the fixed plate (2), and the connecting block (5) is movably connected to the end of the storage platform (3), and a gap is provided between the storage platform (3) and the fixed plate (2). A sliding groove (16) is provided on the outer side of the storage platform (3), and a limiting rod (6) is movably connected in the inner cavity of the sliding groove. A slot is provided on the outer side of the connecting block (5), and the limiting rod (6) is adapted to the slot. When the storage platform (3) is in a horizontal state, the slot and the sliding groove (16) are in an overlapping state.

3. The display device according to claim 1, characterized in that: One end of the bottom plate (4) is fixedly connected to a servo motor (20), and the end of the output shaft of the servo motor (20) is fixedly connected to the middle of the bottom of a roller (22).

4. The display device according to claim 1, characterized in that: The rotating column (24) is an inverted convex structure, the spring (23) contacts the bottom of the horizontal end of the rotating column (24), and the height of the rotating column (24) is greater than the depth of the insertion hole (18).

5. The display device according to claim 1, characterized in that: A through hole (17) adapted to the electromagnet (11) is provided with a groove adapted to the handle (9) on one side close to the handle (9), and a telescopic plate (13) is fixed on the outside of the groove, and the top of the telescopic plate (13) contacts the bottom of the handle (9).

6. The display device according to claim 1, characterized in that: The end of the shaping plate (21) is an arc with an inward groove, and the inner diameter of the arc is the same as the outer diameter of the roller (22). The shaping plate (21) contacts the inner side of the straight section of the display belt (7), the top of the display belt (7) contacts the bottom of the top plate (8), and the bottom of the display belt (7) contacts the top of the bottom plate (4). The side of the display belt (7) close to the storage table (3) is flush with the side of the bottom plate (4) close to the storage table (3).

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