Magnetic type moment disc teaching demonstration device
The magnetic torque disk teaching demonstration device solves the problem of the lever arm being difficult to display in an unbalanced state using lever rulers and torque disks, providing a portable and multifunctional torque demonstration solution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2026-03-20
AI Technical Summary
Existing lever rulers and torque discs are difficult to visually display the lever arm in an unbalanced state, and their vertical structure makes them inconvenient to carry and demonstrate magnetically.
A magnetic torque disc teaching demonstration device was designed, including a base plate, handle groove, magnetic block, support base, panel and torque demonstration ruler. It can be attached to the blackboard by magnetic block or placed on the support base. Combined with the grid-type scale markings, the lever arm data can be read intuitively. It can also be hung and stored for easy portability.
It enables intuitive reading of lever arm values under both balanced and unbalanced conditions, is portable, versatile, and suitable for various torque experiment demonstrations.
Smart Images
Figure CN224020353U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of experimental teaching aids technology, specifically a magnetic torque disk teaching demonstration device. Background Technology
[0002] Mechanics is an important branch of physics, and torque is a crucial concept within mechanics, widely applied in daily life. Physics teaching often requires the use of levers or torque discs, along with counterweights and force measuring tools, to demonstrate and analyze force conditions. Common lever supports and levers are vertical structures, allowing for the determination of torques at both ends of the lever in equilibrium. However, in unequilibrium conditions, it's often difficult to visually demonstrate the lever arm. Common torque discs are typically assembled and vertical, making them inconvenient to carry and use, and unable to be demonstrated magnetically. Utility Model Content
[0003] The purpose of this invention is to provide a magnetic torque disk teaching demonstration device to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: It includes a base plate, a handle groove, side armrest grooves, a magnetic block, a handle, a support base, a panel, a torque demonstration ruler, and a fixing pin; the base plate is a rectangular plate with a handle groove on the upper rear side and side armrest grooves on the left and right sides; the magnetic block is installed at the four corners of the rear side of the base plate and at the center of the upper and lower edges; the handle is fitted with pivots at both ends and installed in the handle groove; the support base is fitted with pivots and installed on the left and right sides of the lower side of the base plate; the panel is installed on the front side of the base plate and has a grid-type scale marking; the fixing pin is vertically fixed to the panel and coincides with the intersection of the grid-type scale markings; the torque demonstration ruler has a fulcrum hole and can pass through the fixing pin, flexibly suspended from the fixing pin.
[0005] As a preferred embodiment of this utility model, the handle can be rotated and stored in the handle groove.
[0006] As a preferred embodiment of this utility model, the thickness of the support base is less than that of the base plate, and it can be stored under the base plate.
[0007] As a preferred technical solution of this utility model, the minimum scale spacing of the torque demonstration ruler is equal to or a multiple of the grid spacing of the grid-type scale mark.
[0008] As a preferred technical solution of this utility model, the fixing pins installed on the base plate are of different lengths, and the difference is not less than the thickness of the torque demonstration ruler.
[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model can demonstrate torque experiments through linear and irregular torque demonstration rulers, and intuitively read the lever arm data and calculate the torque according to the grid scale markings; it can also conduct comparative experiments of linear and irregular torque demonstration rulers at the same time, further deepening the understanding of torque; the torque disk can be directly attached to the blackboard with magnetic blocks, or placed on a flat surface using a support base; at the end of the experiment, it can be carried by hand or hung for storage; the torque disk is lightweight, easy to carry, and has multiple functions. Attached Figure Description
[0010] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0011] Figure 2 This is the front view of the present utility model;
[0012] Figure 3 This is a right view of the present invention;
[0013] In the diagram: 1. Base plate; 2. Handle groove; 3. Side armrest groove; 4. Magnetic block; 5. Handle; 6. Support base; 7. Panel; 7. Grid-type scale markings; 71. Torque demonstration ruler; 8. Fixing pin; 9. Pivot hole; 10. Detailed Implementation
[0014] Example 1
[0015] like Figures 1 to 3 As shown, this utility model discloses a magnetic torque disc teaching demonstration device, including a base plate 1, a handle groove 2, a side armrest groove 3, a magnetic block 4, a handle 5, a support base 6, a panel 7, a torque demonstration ruler 8, a fixing pin 9, and a fulcrum hole 10. The base plate 1 is a rectangular plate with a handle groove 2 on the upper rear side and side armrest grooves 3 on the left and right sides. The magnetic block 4 is installed at the four corners of the rear side of the base plate 1 and at the center of the upper and lower edges. The handle 5 is fitted with a rotating shaft at both ends and installed in the handle groove 2. The support base 6 is fitted with a rotating shaft and installed on the left and right sides of the lower side of the base plate 1. The panel 7 is installed on the front side of the base plate 1 and has a grid-type scale mark 71 on it. The fixing pin 9 is vertically fixed to the panel 1 and coincides with the intersection of the grid-type scale mark 71. The torque demonstration ruler 8 has a fulcrum hole 10 and can pass through the fixing pin 9, flexibly hanging on the fixing pin 9. The upper part is equipped with a handle 5 for easy carrying, and the bottom is equipped with a rotatable support base 6. The support base 6 can be used for overall support, or the magnetic block 4 on the back can be used to directly attach it to the blackboard. The fixing pin 9 passes through the intersection of the torque demonstration ruler 8 and the grid-type scale mark 71. After suspending the weight, the torque teaching demonstration is carried out by the dimension markings on the torque demonstration ruler 8 and the grid-type scale mark 71.
[0016] The working principle of this utility model is as follows: When using this utility model, the support base 6 can be used to support the entire structure, or the support base 6 can be stored away and attached to the blackboard using the magnetic block 4. The magnetic torque disk is then adjusted to a horizontal position. Next, the torque demonstration ruler 8 is selected, and the fixing pin 9 is passed through the fulcrum hole 10 and suspended on the fixing pin 9. After adjustment, the torque demonstration ruler 8 is kept balanced. At this time, the scale lines of the torque demonstration ruler 8 coincide with the vertical lines of the grid-type scale marks 71. Then, the torque demonstration ruler 8 is adjusted on both sides or one side. According to the experimental requirements, weights are suspended and their positions on the torque demonstration ruler are adjusted. When the torque demonstration ruler 8 is stationary, if the torque demonstration ruler 8 is balanced from left to right, the lever arm value can be directly read from the scale lines and grid-type scale marks 71 on the torque demonstration ruler 8. If the torque demonstration ruler 8 is unbalanced from left to right, the lever arm value can be read intuitively from the right-angled triangle formed by the intersection of the torque demonstration ruler 8 and the grid-type scale marks 71. Alternatively, experiments can be conducted simultaneously with straight and irregularly shaped torque demonstration rulers 8 to compare the lever arm situation and perform torque analysis, further deepening the understanding of torque.
[0017] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.
Claims
1. A magnetic torque disk teaching demonstration device, characterized in that: The system includes a base plate (1), a handle groove (2), a side armrest groove (3), a magnetic block (4), a handle (5), a support base (6), a panel (7), a torque demonstration ruler (8), a fixing pin (9), and a fulcrum hole (10). The base plate (1) is a rectangular plate with a handle groove (2) on the upper rear side and side armrest grooves (3) on the left and right sides. The magnetic block (4) is installed at the four corners of the rear side of the base plate (1) and at the center of the upper and lower edges. The handle (5) is fitted with a magnetic block at both ends. The rotating shaft is installed in the handle groove (2); the support base (6) is fitted with the rotating shaft and installed on the left and right sides of the lower side of the base plate (1); the panel (7) is installed on the front side of the base plate (1) and has a grid-type scale mark (71) on it; the fixing pin (9) is vertically fixed to the panel (7) and coincides with the intersection of the grid-type scale mark (71); the torque demonstration ruler (8) has a fulcrum hole (10) and can pass through the fixing pin (9) and be suspended by the fixing pin (9).
2. The magnetic torque disk teaching demonstration device according to claim 1, characterized in that: The handle (5) can be rotated and stored in the handle slot (2).
3. The magnetic torque disk teaching demonstration device according to claim 1, characterized in that: The thickness of the support base (6) is less than that of the base plate (1), and it can be stored under the base plate (1).
4. The magnetic torque disk teaching demonstration device according to claim 1, characterized in that: The minimum scale spacing on the torque demonstration ruler (8) is an integer multiple of the grid spacing of the grid-type scale mark (71).
5. The magnetic torque disk teaching demonstration device according to claim 1, characterized in that: Meanwhile, the fixing pins (9) installed on the base plate (1) are of different lengths, and the difference is not less than the thickness of the torque demonstration ruler (8).