Muscle filament sliding model teaching aid

Abstract

The utility model belongs to the technical field of model teaching aids, and provides a myofilament sliding model teaching aid, which comprises a mounting box; the display mechanism is arranged on the mounting box and is used for displaying the myofilament sliding theory; the limiting mechanism is fixedly arranged at the top of the mounting box and used for limiting the display mechanism; the driving mechanism is fixedly arranged in the mounting box and is used for driving the display mechanism to perform sliding display; the control mechanism is fixedly arranged in the mounting box; through setting the movement adjustment of the Z line plate I and the Z line plate II, the relative position relation with the M line plate is displayed, and then the sliding-in and sliding-out of the thin muscle filaments to the thick muscle filaments are vividly displayed, so that students can more easily understand the muscle filament sliding theory and the contraction and relaxation of skeletal muscles, and the teaching effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of model teaching aids, in particular to a myofilament sliding model teaching aid. Background Art

[0002] Human movement is the result of skeletal muscle contraction. Skeletal muscle is composed of numerous parallel muscle fibers (cells). Under a light microscope, the cytoplasm of skeletal muscle fibers contains numerous parallel myofibrils, the basic unit of which is the sarcomere. Under an electron microscope, each sarcomere is composed of thick and thin myofilaments arranged in parallel. It is currently believed that the contraction mechanism of skeletal muscle is the sliding filament theory, in which the thin myofilaments on either side of the same sarcomere slide toward the thick myofilament, resulting in shortening of the sarcomere, causing shortening of the entire myofibril, the muscle fiber, and the entire muscle.

[0003] Currently, the pictures and animations often used to explain the theory of filament sliding are difficult for students to understand because the content is relatively abstract. The common filament sliding models in the laboratory are hand-push models, which require the user to push the wooden boards on both sides that fix the thin filaments to achieve the purpose. Often, the user's hands apply uneven force, resulting in different sliding speeds of the thin filaments on both sides, and thus cannot accurately demonstrate the filament sliding theory. In addition, some users use too much force, which makes the model extremely easy to damage.

[0004] Therefore, those skilled in the art have proposed a myofilament sliding model teaching aid to solve the problems raised in the background art. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a myofilament sliding model teaching aid to solve the problems such as unsatisfactory display effect of myofilament sliding theory in the prior art.

[0006] A myofilament sliding model teaching aid comprises: a mounting box; a display mechanism, arranged on the mounting box and used for displaying myofilament sliding theory; a limiting mechanism, fixedly arranged on the top of the mounting box and used for limiting the display mechanism; a driving mechanism, fixedly arranged inside the mounting box and used for driving the display mechanism to slide for display; and a control mechanism, fixedly arranged inside the mounting box.

[0007] Preferably, the display mechanism includes an M-line plate fixedly arranged in the middle position of the top of the installation box, and a plurality of thick myofilaments are symmetrically fixed on both sides of the side wall of the M-line plate; a Z-line plate 1 and a Z-line plate 2 are symmetrically slidably arranged on both sides of the M-line plate at the top of the installation box, and a plurality of thin myofilaments are fixed on one side of the side wall of the Z-line plate 1 and the Z-line plate 2 close to the thick myofilament.

[0008] Preferably, the limit mechanism includes a limit switch 1 fixedly arranged at the side edge of the top of the installation box, and a limit switch 2 fixedly arranged at the top of the installation box on one side of the limit switch; a limit switch 4 fixedly arranged at the side edge of the top of the installation box, and a limit switch 3 fixedly arranged at the top of the installation box on the side edge of the limit switch 4.

[0009] Preferably, the driving mechanism includes driving shafts symmetrically fixed on both sides of the inner wall of the installation box, linear motors are slidably arranged on the driving shafts, and the two linear motors are respectively fixedly connected to the bottom of the Z-line plate one and the Z-line plate two; the top of the installation box is located above the two driving shafts and has two sliding grooves symmetrically opened.

[0010] Preferably, the control mechanism includes a control board fixedly arranged inside the installation box, and a plurality of control lines are fixedly arranged on the control board; and a button is fixedly arranged on the top of the installation box.

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

[0012] 1. The utility model provides movable adjustment for Z-line plate 1 and Z-line plate 2 to demonstrate the relative position relationship with the M-line plate, vividly showing the sliding of thin filaments into and out of thick filaments, making it easier for students to understand the theory of filament sliding and skeletal muscle contraction and relaxation, thereby improving teaching effectiveness.

[0013] 2. The utility model drives the Z-line plate 1 and the Z-line plate 2 to move and adjust the display by setting a drive shaft and a linear motor, and is provided with a control panel and a button to control the sliding position of the Z-line plate 1 and the Z-line plate 2. Since the Z-line plate 1 and the Z-line plate 2 are installed on the same straight axis of the linear motor, when the motor moves, it will drive the Z-line plate 1 and the Z-line plate 2 to move toward or in opposite directions along the sliding groove, and the movement speed is the same. The distance between the two Z-line plates and the M-line plate is also consistent. Compared with the manual push-pull model, it can more realistically simulate the process of myofilament sliding, is not easily damaged, and extends the service life of the model. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the overall structure diagram of the myofilament sliding model teaching aid of the present invention;

[0015] Figure 2 This is a top view of the myofilament sliding model of the present invention;

[0016] Figure 3 This is a side view of the myofilament sliding model of the present invention;

[0017] Figure 4 This is a structural diagram of the installation box of the utility model;

[0018] Figure 5 This is a diagram of the internal structure of the installation box of the present utility model;

[0019] Figure 6 This is the control flow chart of the control panel of the present utility model.

[0020] In the picture:

[0021] 1. Mounting box; 2. Z-line board 1; 3. M-line board; 4. Z-line board 2; 5. Thick filaments; 6. Thin filaments; 7. Limit switch 1; 8. Slide slot; 9. Button; 10. Drive shaft; 11. Linear motor; 12. Control board; 13. Control wires; 14. Limit switch 2; 15. Limit switch 3; 16. Limit switch 4. DETAILED DESCRIPTION

[0022] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0023] Example 1:

[0024] As attached Figure 1 To the attached Figure 6 As shown:

[0025] The utility model provides a myofilament sliding model teaching aid, comprising: a mounting box 1; a display mechanism, arranged on the mounting box 1 and used for displaying the myofilament sliding theory; a limiting mechanism, fixedly arranged on the top of the mounting box 1 and used for limiting the display mechanism; a driving mechanism, fixedly arranged inside the mounting box 1 and used for driving the display mechanism to slide for display; and a control mechanism, fixedly arranged inside the mounting box 1.

[0026] refer to Figure 1 、 Figure 2 and Figure 3 , the display mechanism includes M line plate 3, thick myofilament 5, Z line plate 1 2, Z line plate 2 4 and thin myofilament 6;

[0027] An M line plate 3 is fixedly connected at the middle position of the top of the installation box 1, and several thick myofilaments 5 are fixedly connected on both sides of the side wall of the M line plate 3, so that several thick myofilaments 5 are displayed as models on both sides of the M line plate 3. At the same time, Z line plate 1 2 and Z line plate 2 4 are slidably connected at the positions on both sides of the M line plate 3 at the top of the installation box 1, and Z line plate 1 2 and Z line plate 2 4 are set to be a symmetrical structure. Several thin myofilaments 6 are fixedly connected on the side of the side wall of Z line plate 1 2 and Z line plate 2 4 close to the M line plate 3, so that several thin myofilaments 6 are displayed as models on the opposite side of Z line plate 1 2 and Z line plate 2 4. Secondly, Z line plate 1 2 and Z line plate 2 4 can be synchronously slid and adjusted on both sides of the M line plate 3 on the installation box 1, and drive the thin myofilaments 6 to slide synchronously, simulating the contraction and relaxation of skeletal muscle.

[0028] refer to Figure 2 、 Figure 4 and Figure 5 , the limit mechanism includes a limit switch 1 7, a limit switch 2 14, a limit switch 3 15 and a limit switch 4 16;

[0029] By fixedly connecting limit switch 1 7, limit switch 2 14, limit switch 3 15 and limit switch 4 16 at the top side of the installation box 1, the Z-line plate 1 2 and the Z-line plate 2 4 can be controlled by limit switch 1 7, limit switch 2 14, limit switch 3 15 and limit switch 4 16 when simulating skeletal muscle contraction and relaxation;

[0030] In the default state, the skeletal muscle is in a relaxed state. The Z-line plate 1 2 and the Z-line plate 2 4 are located at the positions of the limit switch 1 7 and the limit switch 4 16 respectively. When the button 9 is pressed, the control board 12 controls the two linear motors 11 to drive, driving the Z-line plate 1 2 and the Z-line plate 2 4 to move toward each other on the top of the installation box 1, and also driving the thin muscle filaments 6 to slide toward the M-line plate 3. When the Z-line plate 1 2 runs to the position of the limit switch 2 14, it will touch the limit switch 2 14. When the Z-line plate 2 4 runs to the position of the limit switch 3 15, it will touch the limit switch 3 15. When the control board 12 detects that any one of the limit switch 2 14 and the limit switch 3 15 is touched, the control board 12 controls the two linear motors 11 to stop running, and the Z-line plate 1 2 and the Z-line plate 2 4 stop at the limit switch 2 14 and the limit switch 3 15 respectively. 3 15, thereby showing the shortening of the sarcomere, which is the contraction state of skeletal muscle; when the button 9 is pressed again, the control board 12 controls the two linear motors 11 to drive, driving the Z line plate 1 2 and the Z line plate 2 4 to move in the opposite direction at the top of the installation box 1, and also driving the thin myofilament 6 to slide away from the M line plate 3. When the Z line plate 1 2 runs to the position of the limit switch 1 7, it will touch the limit switch 1 7. When the Z line plate 2 4 runs to the position of the limit switch 4 16, it will touch the limit switch 4 16. When the control board 12 detects that any one of the limit switch 1 7 and the limit switch 4 16 is touched, the control board 12 controls the two linear motors 11 to stop running, and the Z line plate 1 2 and the Z line plate 2 4 stop at the limit switch 1 7 and the limit switch 4 16 respectively, thereby showing the elongation of the sarcomere, which is the relaxation state of skeletal muscle.

[0031] Example 2:

[0032] refer to Figure 2 、 Figure 4 and Figure 5 , the driving mechanism includes a driving shaft 10, a linear motor 11 and a sliding slot 8;

[0033] Two drive shafts 10 are fixedly connected to both sides of the inner wall of the installation box 1, and a linear motor 11 is slidably connected to the drive shaft 10. The bottoms of the Z-line plate 1 2 and the Z-line plate 2 4 are fixedly connected to the linear motor 11, so that the linear motor 11 can be slidably driven on the drive shaft 10, thereby driving the Z-line plate 1 2 and the Z-line plate 2 4 to slide and adjust, thereby driving the thin filaments 6 to slide, thereby demonstrating the contraction and relaxation state of skeletal muscle;

[0034] At the same time, two sliding grooves 8 are symmetrically opened on the top of the installation box 1 with the M line plate 3 as the center line, so that the Z line plate 1 2 and the Z line plate 2 4 pass through the sliding grooves 8 to fix the bottom to the linear motor 11, so as to facilitate the sliding adjustment display of the Z line plate 1 2 and the Z line plate 2 4 through the two sliding grooves 8.

[0035] refer to Figure 1 、 Figure 5 and Figure 6 , the control mechanism includes a control panel 12, a control line 13 and a button 9;

[0036] By arranging a control board 12 inside the mounting box 1, the control board 12 can detect the limit switches 1 7, 2 14, 3 15 and 4 16 through the control line 13, and can drive and control the linear motor 11, thereby achieving the purpose of controlling the sliding display of the Z-line plate 1 2 and the Z-line plate 2 4;

[0037] At the same time, a button 9 is fixedly provided on the installation box 1, and the control board 12 can detect the button 9 through the control line 13, and drive the Z-line board 1 2 and the Z-line board 2 4 to slide and adjust the display in different directions.

[0038] Working principle: An M-line plate 3 is fixedly connected to the middle position of the top of the installation box 1, and a number of thick muscle filaments 5 are fixedly connected to both sides of the side wall of the M-line plate 3. At the same time, Z-line plate 1 2 and Z-line plate 2 4 are slidably connected at the positions on both sides of the M-line plate 3 at the top of the installation box 1, and the Z-line plate 1 2 and Z-line plate 2 4 are set to a symmetrical structure. A number of thin muscle filaments 6 are fixedly connected on the side of the Z-line plate 1 and Z-line plate 2 4 close to the M-line plate 3. Secondly, Z-line plate 1 2 and Z-line plate 2 4 can slide synchronously on the installation box 1 at both sides of the M-line plate 3. The Z-line plate 1 and the Z-line plate 2 are respectively located at the positions of the limit switch 1 7 and the limit switch 4 16. When the button 9 is pressed, the control board 12 controls the two linear motors 11 to drive, driving the Z-line plate 1 2 and the Z-line plate 2 4 to move toward each other on the top of the installation box 1, and also driving the thin filaments 6 to slide toward the M-line plate 3. When the Z-line plate 1 runs to the position of the limit switch 2 14, it will trigger the limit switch 2 14. When the Z-line plate 2 4 moves to the position of the limit switch 3 15, the limit switch 3 15 will be triggered. When the control board 12 detects that any one of the limit switch 2 14 and the limit switch 3 15 is triggered, the control board 12 controls the two linear motors 11 to stop running, and the Z-line plate 1 2 and the Z-line plate 2 4 stop at the limit switch 2 14 and the limit switch 3 15 respectively, thereby showing the shortening of the myometrium, which is the state of skeletal muscle contraction; when the button 9 is pressed again, the control board 12 controls the two linear motors 11 to drive, driving the Z-line plate 1 2 and the Z-line plate 2 4 to rotate on the top of the installation box 1. When the Z-line plate 12 moves to the position of limit switch 17, it will touch the limit switch 17. When the Z-line plate 24 moves to the position of limit switch 416, it will touch the limit switch 416. When the control board 12 detects that any one of the limit switch 17 and the limit switch 416 is touched, the control board 12 controls the two linear motors 11 to stop running, and the Z-line plate 12 and the Z-line plate 24 stop at the limit switch 17 and the limit switch 416 respectively, thereby showing the elongation of the sarcomere, which is the relaxation state of the skeletal muscle.

[0039] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0040] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0041] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0042] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

[0043] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A myofilament sliding model teaching aid, characterized in that: include: Installation box (1); A display mechanism is provided on the installation box (1) and is used for displaying the myofilament sliding theory. The display mechanism comprises an M-line plate (3) fixedly provided at the middle position of the top of the installation box (1), a plurality of thick myofilaments (5) being symmetrically fixedly provided on both sides of the side wall of the M-line plate (3), a Z-line plate 1 (2) and a Z-line plate 2 (4) being symmetrically slidably provided on both sides of the M-line plate (3) at the top of the installation box (1), a plurality of thin myofilaments (6) being fixedly provided on both sides of the side wall of the Z-line plate 1 (2) and the Z-line plate 2 (4) close to the thick myofilaments (5); A limiting mechanism is fixedly arranged on the top of the installation box (1) and is used for limiting the display mechanism; A driving mechanism is fixedly arranged inside the installation box (1) and is used to drive the display mechanism for sliding display. The driving mechanism includes a driving shaft (10) symmetrically fixedly arranged on both sides of the inner wall of the installation box (1), a linear motor (11) is slidably arranged on the driving shaft (10), and the two linear motors (11) are fixedly connected to the bottom of the Z-line plate 1 (2) and the bottom of the Z-line plate 2 (4), respectively; The top of the installation box (1) is located above the two drive shafts (10) and is symmetrically provided with two sliding grooves (8); The control mechanism is fixedly arranged inside the installation box (1).

2. A myofilament sliding model teaching aid as claimed in claim 1, characterized in that: The limit mechanism comprises a limit switch 1 (7) fixedly arranged at the side of the top of the installation box (1), and a limit switch 2 (14) fixedly arranged at the top of the installation box (1) and at the side of the limit switch 1 (7); A limit switch four (16) is fixedly provided at the side of the top of the installation box (1), and a limit switch three (15) is fixedly provided at the top of the installation box (1) on the side of the limit switch four (16).

3. A myofilament sliding model teaching aid as claimed in claim 1, characterized in that: The control mechanism comprises a control board (12) fixedly arranged inside the installation box (1), and a plurality of control lines (13) are fixedly arranged on the control board (12); A button (9) is fixedly provided on the top of the installation box (1).

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