FNIRS signal transmitting device for teaching behavior research

Abstract

The invention relates to the technical field of teaching aids, and discloses an fNIRS signal transmitting device for teaching behavior research, which comprises a bottom plate, two groups of symmetrical support plates are connected to the upper surface of the bottom plate close to the end part through bolts, and each group comprises two support plates; a clamping assembly is fixedly connected to the position, located between the two sets of supporting plates, of the upper surface of the bottom plate, a moving assembly is arranged on the lower surface of the bottom plate, a connecting plate is fixedly connected to the top ends of the multiple supporting plates, a rotating column is rotationally connected to the center of the upper surface of the connecting plate, and a rotating plate is fixedly connected to the top end of the rotating column. Teaching can be conducted at different angles, students on the side edge can clearly see teaching content on the teaching display screen, the teaching quality is greatly improved, the two clamping frames can be driven to move close to each other by rotating the two-way lead screw, then the device is clamped and fixed, and the teaching efficiency is improved. And the device is prevented from falling and being damaged during movement.

Description

Technical Field

[0001] The invention relates to the technical field of teaching tools, in particular to an fNIRS signal transmitting device for teaching behavior research. Background Art

[0002] Functional near-infrared spectroscopy is a new non-invasive brain imaging technology that has emerged in recent years. The principle of fNIRS for brain function imaging is similar to that of functional magnetic resonance imaging, that is, brain neural activity leads to local hemodynamic changes. It is widely used in neurocognitive science, psychology, brain function localization and other fields, and plays an extremely important role.

[0003] During teaching, imaging is generally performed through a display screen. However, the display screen is generally fixed on a bracket or a wall, so that it cannot be moved or rotated. Students at the side have a poor angle and cannot see the teaching content on the display screen more clearly, which leads to a decrease in the quality of teaching. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides an fNIRS signal transmitting device for teaching behavior research, which is mainly used to solve the problem that teaching is generally carried out through imaging on a display screen during teaching. However, the display screen is generally fixed on a bracket or a wall, so that it cannot be moved or rotated. Students at the side have a poor angle and cannot see the teaching content on the display screen more clearly, which leads to a decrease in the quality of teaching and causes more cumbersome problems.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A fNIRS signal transmitting device for teaching behavior research comprises a bottom plate, wherein the upper surface of the bottom plate is connected with two symmetrical groups of support plates by bolts near the end positions, and each group has two support plates, the upper surface of the bottom plate and the position between the two groups of support plates is fixedly connected with a clamping assembly, the lower surface of the bottom plate is provided with a moving assembly, the top ends of the plurality of support plates are fixedly connected with a connecting plate, the center position of the upper surface of the connecting plate is rotatably connected with a rotating column, the top end of the rotating column is fixedly connected with a rotating plate, the connecting plate is provided with a driving assembly for rotating the rotating plate, two supporting assemblies are provided between the connecting plate and the rotating plate, the upper end positions of the upper surface of the rotating plate are fixedly connected with side plates, the opposite sides of the two side plates are rotatably connected with rotating rods, a connecting frame is fixedly connected between the two rotating rods, and a teaching display screen for teaching is provided in the connecting frame.

[0009] Furthermore, the clamping assembly includes a U-shaped seat, which is fixedly connected to the upper surface of the base plate. The U-shaped seat is provided with two symmetrical first avoidance openings, and two symmetrical clamping frames are slidably connected in the two first avoidance openings. A bidirectional screw is rotatably connected between the inner walls on both sides of the U-shaped seat, and the bidirectional screw passes through the two clamping frames and is threadedly connected thereto.

[0010] Based on the above scheme, the drive assembly includes an outer gear ring, which is fixedly connected to the circumferential outer wall of the rotating column, and the lower surface of the connecting plate is fixedly connected to a motor, one end of the motor output shaft passes through the upper surface of the connecting plate and is keyed to a gear, and the gear and the outer gear ring are at the same height and mesh with each other.

[0011] As a further solution of the present invention, the supporting assembly includes two symmetrical arc-shaped plates, the two arc-shaped plates are fixedly connected at symmetrical positions on the upper surface of the connecting plate, the upper surfaces of the two arc-shaped plates are both provided with arc-shaped grooves, the lower surface of the rotating plate and directly above the arc-shaped plates are fixedly connected with two symmetrical cylinders, the bottom ends of the cylinders are provided with spherical grooves, balls are arranged in the spherical grooves, and the balls slide in the arc-shaped grooves.

[0012] Furthermore, a second avoidance opening is provided on the two side panels, an arc-shaped rod is provided in the second avoidance opening, an arc-shaped opening is provided on the arc-shaped rod, a threaded rod is fixedly connected to the bottom end of one side of the two rotating rods, and one end of the threaded rod passes through the arc-shaped opening, a locking knob is threadedly connected to the threaded rod, and one side of the locking knob is in close contact with one side of the arc-shaped rod.

[0013] On the basis of the above scheme, a guide rod is provided between the inner walls on both sides of the two first avoidance openings, and the guide rod passes through the clamp frame and is slidably connected to it. The two ends of the bidirectional screw rod respectively pass through the outer walls on both sides of the U-shaped seat and are fixedly connected with knobs, and rubber pads are bonded to the opposite sides of the two clamp frames.

[0014] As a further solution of the present invention, the moving assembly includes two U-shaped plates, and the two U-shaped plates are respectively fixedly connected to the two end positions of the lower surface of the bottom plate, and the bottom ends of the two U-shaped plates are fixedly connected with universal wheels.

[0015] Furthermore, both sides of the two support plates on the outside are fixedly connected with reinforcing rods, and the top ends of the reinforcing rods are fixedly connected to the lower surface of the arc-shaped plate.

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides an fNIRS signal transmitting device for teaching behavior research, which has the following beneficial effects:

[0018] 1. In the present invention, the device can be moved by a moving component, which is convenient for operations such as transfer and rotation, and the device on the rotating plate can be rotated by the provided connecting plate and rotating plate, which will then cause the teaching display screen to rotate, so that teaching can be carried out at different angles, and students at the side can also clearly see the teaching content on the teaching display screen, which greatly improves the quality of teaching.

[0019] 2. The fNIRS signal transmitter device can be processed and placed on a U-shaped seat by means of a clamping assembly provided in the present invention. The two clamping frames are driven to move closer to each other by rotating the bidirectional screw rod, thereby clamping and fixing the device to prevent the device from falling and being damaged during movement.

[0020] 3. The driving assembly provided in the present invention can rotate the gear after starting the motor, thereby driving the outer gear ring to rotate the rotating column and the rotating plate, thereby changing the angle of the teaching display screen, so that it can display different angles, which is convenient for teaching.

[0021] 4. The supporting assembly provided in the present invention can support the bottom of the rotating plate during its rotation, thereby preventing the rotating plate from tipping over due to unstable weight at both ends, thereby causing damage to the teaching display screen and causing losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of an fNIRS signal transmitting device for teaching behavior research proposed by the present invention;

[0023] Figure 2 The present invention proposes an fNIRS signal transmitting device for teaching behavior research Figure 1 A schematic diagram of a local enlarged structure;

[0024] Figure 3 The present invention proposes an fNIRS signal transmitting device for teaching behavior research Figure 2 A schematic diagram of a partial cross-sectional structure;

[0025] Figure 4 This is a schematic diagram of the enlarged structure of a clamping component of an fNIRS signal transmitting device for teaching behavior research proposed by the present invention;

[0026] Figure 5 The present invention proposes an fNIRS signal transmitting device for teaching behavior research Figure 2 A schematic diagram of the enlarged structure of part A;

[0027] Figure 6 The present invention proposes an fNIRS signal transmitting device for teaching behavior research Figure 3 Schematic diagram of the enlarged structure of part B.

[0028] In the figure: 1. bottom plate; 2. clamping assembly; 3. support plate; 4. connecting plate; 5. rotating plate; 6. side plate; 7. rotating rod; 8. connecting frame; 9. moving assembly; 10. U-shaped plate; 11. universal wheel; 12. teaching display screen; 13. arc plate; 14. arc groove; 15. rotating column; 16. outer gear ring; 17. motor; 18. gear; 19. U-shaped seat; 20. first avoidance opening; 21. clamping frame; 22. two-way screw rod; 23. second avoidance opening; 24. arc rod; 25. arc opening; 26. threaded rod; 27. locking knob; 28. cylinder; 29. ​​ball groove; 30. ball. DETAILED DESCRIPTION

[0029] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0030] Reference Figure 1-Figure 6 , an fNIRS signal transmitting device for teaching behavior research, comprising a bottom plate 1, two symmetrical groups of support plates 3 are connected by bolts near the end position of the upper surface of the bottom plate 1, and each group has two, a clamping assembly 2 is fixedly connected by bolts on the upper surface of the bottom plate 1 and located between the two groups of support plates 3, a moving assembly 9 is provided on the lower surface of the bottom plate 1, a connecting plate 4 is fixedly connected to the top of the plurality of support plates 3 by bolts, a rotating column 15 is rotatably connected to the center position of the upper surface of the connecting plate 4, a rotating plate 5 is fixedly connected to the top of the rotating column 15 by bolts, a driving assembly for rotating the rotating plate 5 is provided on the connecting plate 4, and two supporting assemblies are provided between the connecting plate 4 and the rotating plate 5, The two ends of the upper surface of the rotating plate 5 are fixedly connected to the side plates 6 by bolts, and the opposite sides of the two side plates 6 are rotatably connected to the rotating rods 7. The two rotating rods 7 are fixedly connected to a connecting frame 8 by bolts. A teaching display screen 12 for teaching is arranged in the connecting frame 8. During the teaching process, the device can be moved by the moving component 9 to facilitate operations such as transfer and rotation. The equipment on the rotating plate 5 can be rotated by the provided connecting plate 4 and the rotating plate 5, and then the teaching display screen 12 can be rotated, so that teaching can be carried out at different angles. The students at the side can also clearly see the teaching content on the teaching display screen 12, which greatly improves the quality of teaching.

[0031] Among them, the clamping assembly 2 includes a U-shaped seat 19, which is fixedly connected to the upper surface of the base plate 1 by bolts. Two symmetrical first avoidance openings 20 are opened on the U-shaped seat 19, and two symmetrical clamping frames 21 are slidably connected in the two first avoidance openings 20. A bidirectional screw rod 22 is rotatably connected between the inner walls on both sides of the U-shaped seat 19, and the bidirectional screw rod 22 passes through the two clamping frames 21 and is threadedly connected thereto. The fNIRS signal transmitting device can be processed and placed on the U-shaped seat 19 through the provided clamping assembly 2. The two clamping frames 21 are driven to move closer to each other by rotating the bidirectional screw rod 22, thereby clamping and fixing the device to prevent the device from falling and being damaged during movement.

[0032] In order to facilitate teaching at different angles, the driving component includes an outer gear ring 16, which is fixedly connected to the circumferential outer wall of the rotating column 15 by bolts. The lower surface of the connecting plate 4 is fixedly connected to a motor 17 by bolts. One end of the output shaft of the motor 17 passes through the upper surface of the connecting plate 4 and is keyed to a gear 18, and the gear 18 is at the same height and meshed with the outer gear ring 16. The driving component provided can rotate the gear 18 after starting the motor 17, thereby driving the outer gear ring 16 to rotate and causing the rotating column 15 and the rotating plate 5 to rotate, thereby changing the angle of the teaching display screen 12, so that it can display different angles, which is convenient for teaching. Its characteristics are The supporting assembly includes two symmetrical arc-shaped plates 13, which are fixedly connected to symmetrical positions on the upper surface of the connecting plate 4 by bolts. The upper surfaces of the two arc-shaped plates 13 are provided with arc-shaped grooves 14. The lower surface of the rotating plate 5 and located directly above the arc-shaped plate 13 are fixedly connected with two symmetrical cylinders 28 by bolts. A ball groove 29 is provided at the bottom end of the cylinder 28. A ball 30 is provided in the ball groove 29, and the ball 30 slides in the arc-shaped groove 14. The supporting assembly can support the bottom of the rotating plate 5 during its rotation, thereby preventing the rotating plate 5 from tipping over due to unstable weight at both ends, thereby causing damage to the teaching display screen 12 and causing losses.

[0033] In order to facilitate the adjustment of the inclination angle of the teaching display screen 12, a second avoidance opening 23 is provided on the two side panels 6, and an arc-shaped rod 24 is provided in the second avoidance opening 23. An arc-shaped opening 25 is provided on the arc-shaped rod 24. The bottom end of one side of the two rotating rods 7 is fixedly connected with a threaded rod 26 by a bolt, and one end of the threaded rod 26 passes through the arc-shaped opening 25. A locking knob 27 is threadedly connected to the threaded rod 26, and one side of the locking knob 27 is in close contact with one side of the arc-shaped rod 24. The arc-shaped rod 24 and the threaded rod 26 can be used to fix the teaching display screen 12 after adjusting the inclination angle, thereby preventing it from rotating by itself. The two first avoidance openings 20 A guide rod is provided between the inner walls on both sides, and the guide rod passes through the clamping frame 21 and is slidably connected thereto, the two ends of the bidirectional screw rod 22 respectively pass through the outer walls on both sides of the U-shaped seat 19 and are fixedly connected with knobs by bolts, and rubber pads are bonded to the opposite sides of the two clamping frames 21. It is characterized in that the moving assembly 9 includes two U-shaped plates 10, and the two U-shaped plates 10 are respectively fixedly connected to the two end positions of the lower surface of the base plate 1 by bolts, and the bottom ends of the two U-shaped plates 10 are fixedly connected with universal wheels 11 by bolts, and the two sides of the two support plates 3 on the outside are fixedly connected with reinforcing rods by bolts, and the top ends of the reinforcing rods are fixedly connected to the lower surface of the arc plate 13 by bolts.

[0034] The present invention is divided into the following steps when used:

[0035] S1: When in use, first fix the device on the clamping assembly 2, first place the device on the upper surface of the U-shaped seat 19 and then rotate the bidirectional screw 22. During the rotation of the bidirectional screw 22, the two clamps 21 are driven to move closer to each other along the first avoidance opening 20. When the two clamps 21 are in close contact with the device, the device can be fixed. Then, connect the device to the teaching display screen 12 so that the content to be taught is displayed on the teaching display screen 12 for teaching;

[0036] S2: When the angle needs to be adjusted during the teaching process, the motor 17 is started to rotate the gear 18. During the rotation of the gear 18, the outer gear ring 16 meshing with it is driven to rotate, and then the rotating column 15 is rotated, so that the rotating plate 5 is rotated, and the teaching display screen 12 thereon is rotated to adjust its angle. During the rotation of the rotating plate 5, the ball 30 slides along the arc groove 14 to support the rotating plate 5, thereby increasing its stability;

[0037] S3: When it is necessary to adjust the inclination angle of the teaching display screen 12, first rotate the locking knob 27 to make it disengage from the arc rod 24, then rotate the rotating rod 7 to adjust the inclination angle of the teaching display screen 12. After the adjustment is completed, rotate the locking knob 27 again to make it closely contact with one side of the arc rod 24 to fix the inclination angle of the teaching display screen 12.

[0038] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0039] In the description of this article, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection; it can be a mechanical connection, it can be an electrical connection, or it can be a direct connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the description herein, it should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An fNIRS signal transmitting device for teaching behavior research, comprising a base plate (1), characterized in that: The upper surface of the base plate (1) is connected with two symmetrical groups of support plates (3) by bolts near the end positions, and each group has two. The upper surface of the base plate (1) and the position between the two groups of support plates (3) are fixedly connected with a clamping assembly (2). The lower surface of the base plate (1) is provided with a moving assembly (9). The top ends of the plurality of support plates (3) are fixedly connected with a connecting plate (4). The center position of the upper surface of the connecting plate (4) is rotatably connected with a rotating column (15). The top end of the rotating column (15) is fixedly connected with a rotating plate (5). The connecting plate (4) is provided with a driving assembly for rotating the rotating plate (5). Two supporting assemblies are provided between the connecting plate (4) and the rotating plate (5). The upper ends of the upper surface of the rotating plate (5) are fixedly connected with side plates (6). The opposite sides of the two side plates (6) are rotatably connected with rotating rods (7). A connecting frame (8) is fixedly connected between the two rotating rods (7). A teaching display screen (12) for teaching is provided in the connecting frame (8).

2. The fNIRS signal transmitting device for teaching behavior research according to claim 1, characterized in that: The clamping assembly (2) comprises a U-shaped seat (19), the U-shaped seat (19) is fixedly connected to the upper surface of the base plate (1), the U-shaped seat (19) is provided with two symmetrical first avoidance openings (20), two symmetrical clamping frames (21) are slidably connected in the two first avoidance openings (20), a bidirectional screw rod (22) is rotatably connected between the inner walls on both sides of the U-shaped seat (19), and the bidirectional screw rod (22) passes through the two clamping frames (21) and is threadedly connected thereto.

3. The fNIRS signal transmitting device for teaching behavior research according to claim 1, characterized in that: The driving assembly comprises an outer gear ring (16), the outer gear ring (16) is fixedly connected to the circumferential outer wall of the rotating column (15), the lower surface of the connecting plate (4) is fixedly connected to a motor (17), one end of the output shaft of the motor (17) passes through the upper surface of the connecting plate (4) and is key-connected to a gear (18), and the gear (18) and the outer gear ring (16) are at the same height and mesh with each other.

4. The fNIRS signal transmitting device for teaching behavior research according to claim 3, characterized in that: The support assembly comprises two symmetrical arc-shaped plates (13), the two arc-shaped plates (13) are fixedly connected at symmetrical positions on the upper surface of the connecting plate (4), the upper surfaces of the two arc-shaped plates (13) are both provided with arc-shaped grooves (14), the lower surface of the rotating plate (5) and located directly above the arc-shaped plates (13) are fixedly connected with two symmetrical cylinders (28), the bottom end of the cylinder (28) is provided with a ball groove (29), a ball (30) is arranged in the ball groove (29), and the ball (30) slides in the arc groove (14).

5. The fNIRS signal transmitting device for teaching behavior research according to claim 1, characterized in that: The two side plates (6) are each provided with a second avoidance opening (23), an arc-shaped rod (24) is provided in the second avoidance opening (23), an arc-shaped opening (25) is provided on the arc-shaped rod (24), a threaded rod (26) is fixedly connected to the bottom end of one side of the two rotating rods (7), and one end of the threaded rod (26) passes through the arc-shaped opening (25), a locking knob (27) is threadedly connected to the threaded rod (26), and one side of the locking knob (27) is in close contact with one side of the arc-shaped rod (24).

6. The fNIRS signal transmitting device for teaching behavior research according to claim 2, characterized in that: A guide rod is provided between the inner walls on both sides of the two first avoidance openings (20), and the guide rod passes through the clamping frame (21) and is slidably connected thereto, the two ends of the bidirectional screw rod (22) respectively pass through the outer walls on both sides of the U-shaped seat (19) and are fixedly connected with knobs, and rubber pads are bonded to the opposite sides of the two clamping frames (21).

7. The fNIRS signal transmitting device for teaching behavior research according to claim 2, characterized in that: The moving assembly (9) comprises two U-shaped plates (10), the two U-shaped plates (10) being fixedly connected to two end positions of the lower surface of the bottom plate (1), respectively, and the bottom ends of the two U-shaped plates (10) are fixedly connected to universal wheels (11).

8. The fNIRS signal transmitting device for teaching behavior research according to claim 1, characterized in that: Both sides of the two support plates (3) located on the outside are fixedly connected with reinforcement rods, and the top ends of the reinforcement rods are fixedly connected to the lower surface of the arc-shaped plate (13).

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