Intelligent blackboard

Abstract

The utility model provides an intelligent blackboard which comprises a blackboard body, and round corners are formed at the four corners of the blackboard body. The vertical lifting unit comprises a lead screw, a lead screw nut meshed with the lead screw in a threaded mode and a motor used for driving the lead screw to rotate, sliding rods parallel to the lead screw are arranged on the portions, located on the left side and the right side of the lead screw, of the sliding rail profile correspondingly, and the left side and the right side of the sliding table are arranged on the sliding rods in a sleeving mode and are in sliding connection with the sliding rods; a sensor shielding sheet is mounted on the outer wall, on the same side of the sensor, of the sliding table; according to the motion control system, an output port of an upper computer is connected with an input port of a lower computer, the upper computer is in two-way communication connection with the lower computer, the input port of the lower computer is further connected with a sensor, an output port of the lower computer is connected with an input end of a driver, and an output end of the driver is connected with a motor. The novel blackboard is simple in structure and capable of meeting the requirements of users with different heights, and meanwhile the unsafe risk caused by edges and corners of the blackboard is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of teaching tools, in particular to an intelligent blackboard. Background Art

[0002] The blackboard is a traditional teaching tool and an indispensable part of people's teaching. With the development of society, the intelligent development of blackboards has become a general trend. Therefore, the smart blackboard came into being. It combines the traditional handwriting blackboard with multimedia equipment to facilitate the viewing of various rich multimedia applications such as PPT, videos, pictures, etc., thereby improving teaching effectiveness.

[0003] For example, Chinese patent CN106945433B discloses a nano-touch blackboard and an interactive smart blackboard, which includes an OPS modular computer, an AR interactive teaching system and a nano-touch blackboard; the OPS modular computer is used to control the smart blackboard for teaching, the AR interactive teaching system is used to combine virtual information with real scenes to obtain multimedia teaching courseware, the nano-touch blackboard includes a spliced ​​blackboard composed of a first LCD screen, a nano-touch screen and a second LCD screen spliced ​​in sequence, the surface of the spliced ​​blackboard is anti-glare tempered glass using a nano-composite coating process, the nano-touch screen is used to display multimedia teaching courseware and realize teaching editing, and the first LCD screen and the second LCD screen are used to realize teaching editing.

[0004] While the above-mentioned existing technology can enhance interactive teaching applications, it lacks the function of adjusting the height of the blackboard, resulting in low flexibility and inability to meet the needs of users of different heights, which reduces the user experience. Furthermore, the sharp right angles of the frame pose a high safety risk. Therefore, there is an urgent need to provide an alternative intelligent blackboard. Utility Model Content

[0005] The purpose of the utility model is to provide an intelligent blackboard to solve the problems in the prior art of being highly fixed and not flexible to use and having sharp corners and high safety risks in use.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: an intelligent blackboard, comprising: a blackboard body, the four corners of which are rounded; a vertical lifting unit, a plurality of which are provided, and the plurality of vertical lifting units are arranged side by side on the back of the blackboard body, the vertical lifting unit comprising a screw rod, a screw rod nut engaged with the screw rod thread, and a motor for driving the screw rod to rotate, the screw rod is vertically installed in a slide rail profile, the slide rail profile is located on the left and right sides of the screw rod and is respectively provided with sliding rods parallel to the screw rod, the outside of the screw rod nut is installed with a slide table, the The left and right sides of the slide are sleeved on the slide rod and slidably connected to the slide rod. A sensor is respectively provided on the upper and lower parts of the outer wall of one side of the slide rail profile, and a sensor shielding piece is installed on the outer wall of the slide on the same side of the sensor; the motion control system includes an upper computer, a lower computer, and a driver. The output port of the upper computer is connected to the input port of the lower computer, and the upper computer and the lower computer are in a two-way communication connection. The input port of the lower computer is also connected to the sensor, the output port of the lower computer is connected to the input end of the driver, and the output end of the driver is connected to the motor.

[0007] Furthermore, an anti-collision structure is installed at the rounded corner position.

[0008] Furthermore, the anti-collision structure includes a hard substrate and an airbag body, the airbag body is bonded and fixed to the outer surface of the hard substrate, and the side of the hard substrate away from the airbag body is bent to form a concave surface, which matches the rounded corner.

[0009] Furthermore, a flexible buffer layer is fixedly connected to a side of the airbag body away from the bonding surface of the hard substrate.

[0010] Furthermore, the flexible buffer layer is one of a sponge layer, a flexible rubber layer or a flexible silicone layer.

[0011] Furthermore, a groove cooperating with the hard substrate is formed on the rounded corner, and the depth of the groove is at least equal to the thickness of the hard substrate.

[0012] Furthermore, the hard substrate is bonded and fixed in the groove.

[0013] Furthermore, the anti-collision structure can be detachably installed on the rounded corner, and the connection sides of the hard substrate and the long side and short side of the blackboard body are respectively provided with extension strips, and the extension strips are connected to the long side or short side of the blackboard body by screws.

[0014] Furthermore, the sensor is a shielding type photoelectric sensor.

[0015] Compared with the existing technology, the above technical solution has the following beneficial effects:

[0016] 1. By setting up a vertical lifting unit and coordinating with a motion control system, the height of the blackboard can be adjusted to meet the height requirements of users of different heights, thus improving its flexibility and user experience.

[0017] 2. By making the edges and corners of the blackboard flexible, the safety risks brought to users by the edges and corners of the blackboard are greatly reduced.

[0018] In summary, the overall structure of the utility model is simple, can meet the needs of users of different heights, improves the user experience, and at the same time reduces the safety risks caused by the sharp corners of the blackboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0020] Figure 1 This is the structural front view of the utility model;

[0021] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0022] Figure 3 It is a structural diagram of the vertical lifting unit 2 in the present utility model;

[0023] Figure 4 This is a structural block diagram of the motion control system in the utility model;

[0024] Figure 5 This is a schematic diagram of the control process of a single lower computer 4 in the present invention;

[0025] Figure 6 This is a schematic structural diagram of the blackboard body 1 of the present invention when an anti-collision structure 6 is provided;

[0026] Figure 7 A schematic diagram of the partial structure of Example 2 of the present utility model;

[0027] Figure 8 This is a schematic diagram of the partial structure of the utility model when a groove 11 is provided on the rounded corner;

[0028] Figure 9 It is a partial structural diagram of Example 4 of the present utility model.

[0029] Explanation of the accompanying drawings: 1. Blackboard body; 11. Groove; 2. Vertical lifting unit; 21. Screw; 22. Screw nut; 221. Slide; 2211. Sensor shield; 23. Motor; 24. Slide rail profile; 25. Slide; 26. Sensor; 3. Upper computer; 4. Lower computer; 5. Driver; 6. Anti-collision structure; 61. Hard substrate; 611. Extension strip; 6111. Screw; 62. Airbag; 621. Flexible buffer layer. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0031] In view of the problems existing in the prior art, the present invention provides an intelligent blackboard, which will be described in detail below with reference to the accompanying drawings.

[0032] Example 1

[0033] See Figure 1-Figure 5 As shown, the technical solution adopted in this specific embodiment is: an intelligent blackboard, including a blackboard body 1, a vertical lifting unit 2, and a motion control system.

[0034] The blackboard body 1 is provided with an intelligent display screen (not shown in the figure). A plurality of vertical lifting units 2 are installed side by side on the back of the blackboard body 1. The vertical lifting units 2 drive the blackboard body 1 to be raised and lowered, thereby improving the flexibility of the blackboard body 1 and facilitating the adjustment of the height, making it more convenient for users of different heights to use. The vertical lifting units 2 are controlled by a motion control system 3.

[0035] The vertical lifting unit 2 includes a screw rod 21, a screw nut 22 threadedly engaged with the screw rod 21, and a motor 23 for driving the screw rod 21 to rotate. The screw rod 21 is vertically mounted within a slide rail profile 24. Meanwhile, the slide rail profile 24 is provided with slide rods 25 parallel to the screw rod 21 on the left and right sides of the screw rod 21. A slide 221 is mounted outside the screw nut 22. The left and right sides of the slide 221 are sleeved on the slide rods 25 and slidably connected to the slide rods 25. The lower end of the slide 221 slides with the bottom of the slide rail profile 24. The provision of the slide rods 25 and the sliding engagement of the lower end of the slide 221 with the bottom of the slide rail profile 24 can limit the position of the slide 221, improve the stability of the slide 221, and reduce the shaking of the slide 221. During installation, to ensure that the blackboard body 1 does not protrude excessively from the wall surface, the vertical lifting unit 2 can be embedded in the wall.

[0036] It should be further explained that a sensor 26 is respectively provided on the upper and lower parts of the outer wall of one side of the slide rail profile 24, and a sensor blocking piece 2211 is installed on the outer wall of the slide 221 on the same side of the sensor 26. When the slide 221 moves up and down, the sensor 26 is triggered by blocking the sensor 26 by the sensor blocking piece 2211, thereby generating high and low level switching signals.

[0037] It should be further explained that one end of the screw rod 21 can be connected to the drive shaft of the motor 23 through a coupling or a gear transmission mechanism.

[0038] It should be specified that, Figure 4 As shown, the motion control system includes a host computer 3, a slave computer 4, and a driver 5. The number of the slave computers 4 and the driver 5 is consistent with the number of the vertical lifting units 2, and the host computer 3 is provided with one. The output port of the host computer 3 is connected to the input port of the slave computer 4, and the host computer 3 and the slave computer 4 are connected in a two-way communication. The output port of the host computer 3 is also connected to the intelligent display screen of the blackboard body 1, and the input port of the slave computer 4 is also connected to the sensor 26. The output port of the slave computer 4 is connected to the input end of the driver 5, and the output end of the driver 5 is connected to the motor 23. The sensor 26 adopts a shielding photoelectric sensor. The position of the sensor 26 is the same as the initialization calibration position of the blackboard body 1. Therefore, when the blackboard body 1 moves to the initialization calibration position, the sensor shielding piece 2211 on the slide 221 will trigger the sensor 26, and the sensor 26 will output a high-level signal to the lower computer 4. After the lower computer 4 receives the high-level signal, it sends an instruction to the upper computer 3. When the upper computer 3 receives the signal from the lower computer 4, it indicates that the blackboard body 1 has reached the extreme position of up / down adjustment.

[0039] In the embodiment of the present invention, the host computer 3 is a PC, and the slave computer 4 is an MCU main control chip. The MCU main control chip can receive instructions sent by the host computer 3 and respond to corresponding instructions.

[0040] In this embodiment, the four corners of the blackboard body 1 are set to be rounded to reduce the safety hazards caused by sharp edges. The rounded corner design can disperse the impact force and reduce the risk of injury.

[0041] Example 2

[0042] See Figure 6-Figure 7 As shown, the difference between this embodiment and embodiment 1 is that an anti-collision structure 6 is installed at the rounded corner position.

[0043] The anti-collision structure 6 includes a hard substrate 61 and an airbag 62. The airbag 62 is bonded and fixed to the outer surface of the hard substrate 61. The side of the hard substrate 61 away from the airbag 62 is bent to form a concave surface, which matches the rounded corner.

[0044] The hard substrate 61 can be made of steel plate or hard plastic.

[0045] A flexible buffer layer 621 is fixedly bonded to the side of the airbag body 62 away from the bonding surface with the hard substrate 61 . The flexible buffer layer 62 is a sponge layer, a flexible rubber layer, or a flexible silicone layer.

[0046] Example 3

[0047] See Figure 6-Figure 7 As shown, the difference between this embodiment and embodiment 2 is that a groove 11 cooperating with the hard substrate 61 is opened on the rounded corner, and the depth of the groove 11 is at least equal to the thickness of the hard substrate 61.

[0048] The hard substrate 61 is bonded and fixed on the groove 11 .

[0049] Example 4

[0050] See Figure 9 As shown, the difference between this embodiment and embodiment 3 is that the hard substrate 61 can be detachably mounted on the fillet by screw connection or elastic snap connection, so as to facilitate the disassembly, replacement and maintenance of the anti-collision mechanism 6.

[0051] For example, an extension bar 611 is provided on the connection side between the hard substrate 61 and the long side and the short side of the blackboard body 1 , respectively. The extension bar 611 is installed on the long side or the short side of the blackboard body 1 through screws 6111 .

[0052] Of course, symmetrical clips (not shown) can also be provided on the inner side of the hard substrate 61 , and the hard substrate 61 can be installed and fixed by providing elastic clips on the long and short sides of the blackboard body 1 .

[0053] In the description of the present invention, unless otherwise specified, "plurality" means two or more; the terms "upper", "lower", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation to the present invention.

[0054] The above description is only used to illustrate the technical solution of the present invention and is not intended to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. An intelligent blackboard, characterized in that: include: A blackboard body, wherein the four corners of the blackboard body are rounded; A vertical lifting unit, wherein a plurality of the vertical lifting units are provided, and the plurality of the vertical lifting units are arranged side by side on the back of the blackboard body, the vertical lifting unit comprises a screw rod, a screw rod nut threadedly engaged with the screw rod, and a motor for driving the screw rod to rotate, the screw rod is vertically installed in a slide rail profile, the slide rail profile is provided with slide rods parallel to the screw rod on the left and right sides of the screw rod, a slide is installed outside the screw rod nut, the left and right sides of the slide are sleeved on the slide rod and slidably connected to the slide rod, a sensor is respectively provided on the upper and lower parts of the outer wall of one side of the slide rail profile, and a sensor shielding piece is installed on the outer wall of the slide on the same side as the sensor; A motion control system includes a host computer, a slave computer, and a driver. The output port of the host computer is connected to the input port of the slave computer, and the host computer and the slave computer are connected in a two-way communication manner. The input port of the slave computer is also connected to a sensor. The output port of the slave computer is connected to the input end of the driver, and the output end of the driver is connected to the motor.

2. The intelligent blackboard according to claim 1, characterized in that: An anti-collision structure is installed at the rounded corner position.

3. The intelligent blackboard according to claim 2, characterized in that: The anti-collision structure includes a hard substrate and an airbag body. The airbag body is bonded and fixed to the outer surface of the hard substrate. The side of the hard substrate away from the airbag body is bent to form a concave surface, which matches the rounded corner.

4. The intelligent blackboard according to claim 3, characterized in that: A flexible buffer layer is fixedly connected to one side of the airbag body away from the bonding surface of the hard substrate.

5. The intelligent blackboard according to claim 4, characterized in that: The flexible buffer layer is a sponge layer, a flexible rubber layer or a flexible silicone layer.

6. The intelligent blackboard according to claim 3, characterized in that: The rounded corner is provided with a groove matched with the hard substrate, and the depth of the groove is at least equal to the thickness of the hard substrate.

7. The intelligent blackboard according to claim 6, characterized in that: The hard substrate is bonded and fixed in the groove.

8. The intelligent blackboard according to claim 6, characterized in that: The anti-collision structure can be detachably mounted on the rounded corner. The connection sides of the hard substrate and the long side and short side of the blackboard body are respectively provided with extension strips, and the extension strips are connected to the long side or short side of the blackboard body through screws.

9. The intelligent blackboard according to claim 1, characterized in that: The sensor is a shielding type photoelectric sensor.

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