CN110748768A - Multimedia teaching display device removes rack - Google Patents

Abstract

The invention relates to the technical field of teaching equipment, and specifically discloses a mobile placement rack for multimedia teaching display equipment, comprising a fixed frame, a writing board and a telescopic rod. One end of the fixed frame is hinged to one end of the writing board, and the other end of the writing board is fixedly arranged There is a buckle, the other end of the fixed frame is fixed with a fixed head, and the back of the fixed frame is fixedly connected with the top of the telescopic rod. The telescopic rod is provided with a fastening device, the bottom of the telescopic rod is rotatably connected to the top of the rotating rod, the bottom of the rotating rod is rotatably connected with a rotating wheel, and the bottom side wall of the telescopic rod is fixedly provided with a limit plate. The writing board covers the fixed frame to avoid external damage to the device. The writing board is used for writing, thereby facilitating teaching and reducing the volume of the placement shelf. The advantages of the invention are as follows: the structure is simple, the operation is convenient, the applicability is strong, the stability is good, the teaching is convenient, the volume is small, and the transportation and storage are convenient.

Description

A mobile placement rack for multimedia teaching display equipment

technical field

The invention relates to the technical field of teaching equipment, in particular to a mobile placement rack for multimedia teaching display equipment.

Background technique

With the advancement of computer technology, the reduction of the construction cost of computer-aided teaching equipment systems including computers, and the continuous improvement and strengthening of the functions of the auxiliary teaching system, the role of the computer-aided teaching system in normal teaching activities has become increasingly important, making teaching activities more and more important. It is intuitive and interesting, which not only reduces the intensity of teachers' lesson preparation, but also reduces the difficulty of students' understanding of learning through intuitive demonstration, thereby improving the efficiency of teaching and learning. With the development and popularization of computer technology, multimedia computers have successfully replaced the comprehensive and practical status of a variety of teaching media. Teaching activities using multimedia computers and with the help of pre-made multimedia teaching software, it is obvious that computer technology plays an important role in this teaching. played an important role in the process. But as an alternative to the traditional teaching methods of multimedia teaching.

The Chinese patent (announcement number: CN 107945587 A, announcement date: 2018.04.20) discloses a slow-down display for multimedia teaching, including a display frame, a display screen, a jacking mechanism, a support rod, a multimedia teaching equipment table, an electric Push rod and slow descender, the upper end of the multimedia teaching equipment table body is provided with a work table, a computer is installed on the work table, a slow descender is installed inside the multimedia teaching equipment table body, the upper part of the slow descender is connected to a support rod, and a monitor is installed on the top of the support rod Frame, the front side of the display frame is embedded with a display screen, and a jacking mechanism is arranged on the support rod. The jacking mechanism is connected to the electric push rod, and the electric push rod is installed in the multimedia teaching equipment table; the structure is stable, the operation is convenient, and it is convenient for the top of the monitor. Lifting and unfolding and lowering and retracting, driven by the electric push rod, saves time and effort. After the teaching is over, the frame of the display and the display screen can be slowly lowered and reset, which is convenient for the falling and retracting of the display, and will not cause collisions and damage its internal components. Safe and reliable. The device is complicated in structure, large in volume, inconvenient to move and carry, and inconvenient for popularization and implementation.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a mobile rack for multimedia teaching display equipment to solve the problems raised in the above-mentioned background art.

To achieve the above object, the present invention provides the following technical solutions:

A mobile placement rack for multimedia teaching display equipment includes a fixed frame, a writing board and a telescopic rod. One end of the fixed frame is hinged to one end of the writing board, the other end of the writing board is fixed with a buckle, and the other end of the fixed frame is fixed with a fixed head, which can be connected to each other through the buckle and the fixed head, so that the writing board covers the fixed frame , to protect the display device inside the fixed frame and avoid external force damage to the device. Writing can be done on the writing board, so as to facilitate teaching, and the storage of the writing board can reduce the volume of the placing rack and facilitate the movement and storage of the placing rack. The back of the fixed frame is fixedly connected with the top of the telescopic rod, and the telescopic rod includes a plurality of groups of outer rods and inner rods that slide and nest with each other. Thereby, the length of the telescopic rod can be adjusted.

The telescopic rod is provided with a fastening device, through which the telescopic rod can be fastened, so that the length of the telescopic rod can be fixed, so as to adjust the height of the fixed frame to meet the height of the display and improve the application of the placing rack ability.

The bottom of the telescopic rod is rotatably connected to the top of the rotating rod, and the bottom of the rotating rod is rotatably connected with a rotating wheel. The rotating rod can rotate clockwise and overlap with the telescopic rod, so that the rotating rod can be stowed and the volume of the placing rack can be reduced. The bottom side wall of the telescopic rod is fixedly provided with a limiting plate, the limiting plate has a limiting effect on the rotating rod, the rotating rod rotates counterclockwise, and under the action of the limiting plate, the rotating rod has a supporting effect on the telescopic rod.

As a further solution of the present invention, a fixing frame is fixedly arranged inside the fixing frame, and the display device can be fixed inside the fixing frame through the fixing frame.

As a further solution of the present invention: the tightening device includes a tightening ring and a sliding cavity, a sliding cavity is opened inside the outer rod, a tightening ring is slidably placed inside the sliding cavity, the inner rod passes through the interior of the tightening ring, and is fastened. One end of the ring is fixedly connected with a button, the button extends out of the outer rod, and the other end of the fastening ring is elastically connected to the side wall of the sliding cavity through a spring. Under the action of the spring, the tightening ring moves, and the tightening ring is clamped on the side wall of the inner rod, so that the inner rod is fixed inside the outer rod, so that the length of the telescopic rod is fixed. Press the button to move the tightening ring, and the tightening ring is disengaged from the inner rod, so that the inner rod can slide inside the outer rod, so as to adjust the length of the telescopic rod.

As a further solution of the present invention, a guide rod is fixedly arranged on the side wall of the sliding cavity, and the guide rod slides through the spring and nests inside the fastening ring, so that the sliding of the fastening ring is smoother and more stable.

As a further solution of the present invention, a clamping plate is arranged on the rotating wheel, and the clamping plate has a braking effect on the rotating wheel, thereby facilitating the movement and fixing of the device.

As a further solution of the present invention, the bottom of the rotating rod is bent outwards, so that the bottom of the rotating rod can be clamped on both sides of the telescopic rod, which further reduces the volume of the placing rack.

As a further solution of the present invention, the side wall of the telescopic rod is fixed with a magnet, and the inner side of the rotating rod is fixed with an iron sheet. When the rotating rod is rotated to overlap with the telescopic rod, the magnet and the iron sheet attract each other, thereby avoiding the rotation of the rotating rod.

As a further solution of the present invention, the inner side wall of the fastening ring is fixedly provided with an anti-skid layer, and the setting of the anti-skid layer makes the position of the inner rod more stable.

As a further solution of the present invention: the inner side wall of the fastening ring is fixedly provided with toothed protrusions, the sidewall of the inner rod is provided with toothed grooves, and the toothed protrusions are nested inside the toothed grooves, thereby fixing the inner rod. Inside the outer rod, so that the length of the telescopic rod is fixed.

Compared with the prior art, the present invention has the beneficial effects that the clip and the fixed head can be connected to each other, so that the writing board covers the fixed frame, protects the display device inside the fixed frame, and avoids damage to the device by external force. Writing can be done on the writing board, so as to facilitate teaching, and the storage of the writing board can reduce the volume of the placing rack and facilitate the movement and storage of the placing rack. The telescopic rod can be fastened by the fastening device, so that the length of the telescopic rod can be fixed, thereby adjusting the height of the fixed frame to meet the height of the display, and improving the applicability of the placing rack. The bottom of the rotating rod is rotatably connected with a rotating wheel, and the rotating rod can be rotated clockwise and overlapped with the telescopic rod, so that the rotating rod can be stowed and the volume of the placing rack can be reduced. The invention has the advantages of simple structure, convenient operation, strong applicability, good stability, convenient teaching, small size, and easy handling and storage.

Description of drawings

FIG. 1 is a schematic structural diagram of a mobile placement rack for a multimedia teaching display device.

FIG. 2 is a schematic front view of the structure of a fastening device in a mobile placement frame of a multimedia teaching display device.

FIG. 3 is a top-view structural schematic diagram of a fastening device in a mobile placement frame of a multimedia teaching display device.

FIG. 4 is a schematic structural diagram of a rotating rod in a mobile placement frame of a multimedia teaching display device.

In the figure, the fixed frame 1, the clamping plate 2, the telescopic rod 3, the fixed head 4, the fastening device 5, the rotating rod 6, the rotating wheel 7, the fixed frame 8, the writing board 9, the buckle 10, the fastening ring 11, the button 12. Sliding cavity 13, spring 14, guide rod 15, inner rod 16, outer rod 17, tooth slot 18, toothed protrusion 19, iron piece 20, magnet 21, limit plate 22.

Detailed ways

In order to have a clearer understanding of the technical features, objects and effects of the present invention, the present invention will now be described with reference to the accompanying drawings.

Example 1

Please refer to FIGS. 1-4 , a mobile placement stand for multimedia teaching display equipment, including a fixed frame 1 , a writing board 9 and a telescopic rod 3 . A fixing frame 8 is fixedly arranged inside the fixing frame 1 , and the display device can be fixed inside the fixing frame 1 through the fixing frame 8 . One end of the fixed frame 1 is hinged with one end of the writing board 9, the other end of the writing board 9 is fixed with a buckle 10, and the other end of the fixed frame 1 is fixed with a fixed head 4, which can be connected to each other through the buckle 10 and the fixed head 4 , so that the writing board 9 covers the fixed frame 1, protects the display device inside the fixed frame 1, and avoids damage to the device by external force. Writing can be performed on the writing board 9, so as to facilitate teaching, and the storage of the writing board 9 can reduce the volume of the placing rack and facilitate the movement and storage of the placing rack. The top of the telescopic rod 3 is fixedly connected to the back of the fixed frame 1 , and the telescopic rod 3 includes a plurality of sets of outer rods 17 and inner rods 16 that slide and nest with each other. Thus, the length of the telescopic rod 3 can be adjusted.

The telescopic rod 3 is provided with a fastening device 5, through which the telescopic rod 3 can be fastened, so that the length of the telescopic rod 3 can be fixed, thereby adjusting the height of the fixed frame 1 to meet the height of the display, Improved the applicability of the placement rack. The fastening device 5 includes a fastening ring 11 and a sliding cavity 13, a sliding cavity 13 is opened inside the outer rod 17, a fastening ring 11 is slidably placed inside the sliding cavity 13, and the inner rod 16 passes through the interior of the fastening ring 11, One end of the fastening ring 11 is fixedly connected with a button 12, the button 12 extends out of the outer rod 17, and the other end of the fastening ring 11 is elastically connected to the side wall of the sliding cavity 13 through a spring 14. Under the action of the spring 14 , the tightening ring 11 moves, and the tightening ring 11 is stuck on the side wall of the inner rod 16 , so that the inner rod 16 is fixed inside the outer rod 17 , so that the length of the telescopic rod 3 is fixed. Press the button 12 to move the tightening ring 11 , and the tightening ring 11 is disengaged from the inner rod 16 , so that the inner rod 16 can slide inside the outer rod 17 , thereby adjusting the length of the telescopic rod 3 . An anti-skid layer is fixed on the inner side wall of the fastening ring 11 , and the anti-skid layer makes the position of the inner rod 16 more stable. A guide rod 15 is fixed on the side wall of the sliding cavity 13 , and the guide rod 15 slides through the spring 14 and nests inside the fastening ring 11 , so that the sliding of the fastening ring 11 is smoother and more stable.

The bottom of the telescopic rod 3 is rotatably connected to the top of the rotating rod 6, and the bottom of the rotating rod 6 is rotatably connected with a rotating wheel 7. The rotating wheel 7 is provided with a clamping plate 2, and the clamping plate 2 has a braking effect on the rotating wheel 7, thereby facilitating the The movement and fixation of the device. The rotating rod 6 can be rotated clockwise and overlapped with the telescopic rod 3, so that the rotating rod 6 can be stowed away and the volume of the placing rack can be reduced. The bottom of the rotating rod 6 is bent outwards, so that the bottom of the rotating rod 6 can be clamped on both sides of the telescopic rod 3, which further reduces the volume of the placing rack. The side wall of the telescopic rod 3 is fixed with a magnet 21, and the inner side of the rotating rod 6 is fixed with an iron sheet 20. When the rotating rod 6 is rotated to overlap with the telescopic rod 3, the magnet 21 and the iron sheet 20 attract each other, thereby avoiding the rotation of the rod 6. turn. The bottom side wall of the telescopic rod 3 is fixedly provided with a limiting plate 22, the limiting plate 22 has a limiting effect on the rotating rod 6, and the rotating rod 6 rotates counterclockwise. support.

The working principle of the present invention is as follows: the display device is fixed inside the fixed frame 1 through the fixed frame 8 . The clip 10 and the fixed head 4 are connected to each other, so that the fixed frame 1 is covered, the display device inside the fixed frame 1 is protected, and external force damage to the device is avoided. Writing is performed on the writing board 9, thereby facilitating teaching. Press the button 12 to move the tightening ring 11 , the tightening ring 11 is disengaged from the inner rod 16 , so that the inner rod 16 slides inside the outer rod 17 , thereby adjusting the length of the telescopic rod 3 . Release the button 12, under the action of the spring 14, the tightening ring 11 moves to one end, and the tightening ring 11 is stuck on the side wall of the inner rod 16, so that the inner rod 16 is fixed inside the outer rod 17, so that the telescopic rod 3 fixed length. The rotating rod 6 rotates counterclockwise, and under the action of the limiting plate 22 , the rotating rod 6 supports the telescopic rod 3 . The rotating rod 6 can be rotated clockwise and overlapped with the telescopic rod 3, so that the rotating rod 6 can be stowed away and the volume of the placing rack can be reduced. Easy to carry and store the rack.

Example 2

On the basis of Embodiment 1, the inner side wall of the fastening ring 11 is fixedly provided with toothed protrusions 19, the sidewall of the inner rod 16 is provided with toothed grooves 18, and the toothed protrusions 19 are nested inside the toothed grooves 18. , so that the inner rod 16 is fixed inside the outer rod 17 , so that the length of the telescopic rod 3 is fixed.

The above-mentioned embodiments only represent the preferred embodiments of the present invention, and the descriptions thereof are specific and detailed, but should not be construed as limiting the scope of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications, improvements and substitutions can be made, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims (9)

1. A mobile placement frame for multimedia teaching display equipment comprises a fixed frame (1), a writing board (9) and a telescopic rod (3), wherein one end of the fixed frame (1) is hinged to one end of the writing board (9), a buckle (10) is fixedly arranged at the other end of the writing board (9), and a fixed head (4) is fixedly arranged at the other end of the fixed frame (1), and is characterized in that the back of the fixed frame (1) is fixedly connected with the top of the telescopic rod (3), and the telescopic rod (3) comprises a plurality of groups of outer rods (17) and inner rods (16) which are mutually slidably nested; be provided with fastener (5) on telescopic link (3), the bottom of telescopic link (3) is rotated and is connected at the top of dwang (6), and the bottom of dwang (6) is rotated and is connected with and rotates wheel (7), and the fixed limiting plate (22) that is provided with of bottom lateral wall of telescopic link (3).

2. A mobile placement frame for multimedia teaching display equipment according to claim 1, characterized in that the inside of the fixed frame (1) is fixedly provided with a fixed frame (8).

3. The mobile placement rack for the multimedia teaching display equipment according to claim 1 or 2, wherein the fastening device (5) comprises a fastening ring (11) and a sliding cavity (13), the sliding cavity (13) is formed in the outer rod (17), the fastening ring (11) is placed in the sliding cavity (13) in a sliding mode, the inner rod (16) penetrates through the fastening ring (11), a button (12) is fixedly connected to one end of the fastening ring (11), the button (12) extends out of the outer rod (17), and the other end of the fastening ring (11) is elastically connected to the side wall of the sliding cavity (13) through a spring (14).

4. A mobile placement frame for multimedia teaching display equipment according to claim 3, characterized in that a guide rod (15) is fixedly arranged on the side wall of the sliding cavity (13), and the guide rod (15) slides through the spring (14) and is nested inside the fastening ring (11).

5. A mobile placement frame for multimedia teaching display equipment according to claim 1, characterized in that the rotating wheel (7) is provided with a clamping plate (2).

6. The mobile placement frame for the multimedia teaching display equipment according to claim 1, wherein the rotating rod (6) is of a structure with a bottom bent outwards.

7. The mobile placement frame for the multimedia teaching display equipment according to claim 1, wherein the side wall of the telescopic rod (3) is fixedly provided with a magnet (21), and the inner side of the rotating rod (6) is fixedly provided with an iron sheet (20).

8. The mobile placement frame for the multimedia teaching display equipment according to claim 3, wherein an anti-slip layer is fixedly arranged on the inner side wall of the fastening ring (11).

9. The mobile placement frame for the multimedia teaching display equipment according to claim 3, wherein the inner side wall of the fastening ring (11) is fixedly provided with a insection protrusion (19), the side wall of the inner rod (16) is provided with a tooth socket (18), and the insection protrusion (19) is nested inside the tooth socket (18).

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