Overweight and weightlessness experimental device
By designing an overweight and weightless experimental device including U-shaped frame, fixed pulley, counterweight block and camera equipment, the problem that the existing technology cannot intuitively demonstrate and accurately collect data is solved, and intuitive demonstration and quantitative of overweight and weightless phenomena are achieved. Analysis enhances students' scientific exploration ability.
Patent Information
- Application Number
- CN202323351791.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-10
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2033-12-10
AI Technical Summary
Existing teaching equipment is difficult to intuitively demonstrate overweight and weightlessness, and it is impossible to accurately collect data for quantitative analysis, which limits students' deep understanding of these concepts and scientific exploration.
An overweight and weightless experimental device including a U-shaped frame, fixed pulley, connecting rope, counterweight block, iron ring, storage box, micro electronic scale and acceleration sensor was designed to observe the micro electronic scale and acceleration sensor in real time through the camera equipment. Data, simulates the phenomenon of overweight and weightlessness during elevator operation.
It realizes intuitive demonstration of overweight and weightless phenomena and accurate data collection, which facilitates students to conduct quantitative analysis and enhances their understanding of these concepts and scientific exploration ability.
Smart Images
Figure CN222233173U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of experimental teaching aids, and in particular provides an overweight and weightlessness experimental device. Background Art
[0002] The phenomenon of overweight and weightlessness is a specific application of Newton's laws of motion. Overweight and weightlessness have applications in life, society, and technology. From the elevators that people often take, extreme sports in amusement parks, to the living environment of astronauts in space, they are all related to overweight and weightlessness. However, students only make superficial connections between knowledge and life experience without a deep understanding. Some of the existing teaching equipment do not show obvious phenomena, and some cannot collect data for quantitative analysis. For example, the experimental device with application number 202122307720.0 is not convenient for collecting data. Therefore, it is very important to make teaching aids that show obvious phenomena and can perform quantitative analysis. Summary of the invention
[0003] In view of the deficiencies of the prior art, the utility model provides an overweight and weightlessness experimental device, which can intuitively demonstrate the overweight and weightlessness phenomena and accurately present the data for easy quantitative analysis.
[0004] To achieve the above purpose, the utility model is implemented through the following technical solutions:
[0005] An overweight and weightlessness experiment device comprises a base, a U-shaped frame is fixed on the base, two fixed pulleys of equal height are arranged on the upper end of the U-shaped frame, a connecting rope is wound between the two fixed pulleys, one end of the connecting rope passes through a counterweight block and an iron ring and is connected to a first weight, and the other end is connected to a storage box, a miniature electronic scale and an acceleration sensor are placed on the bottom plate of the storage box, a second weight is placed on the miniature electronic scale, and a camera device is fixed on the top plate of the storage box.
[0006] Furthermore, the counterweight block is in the shape of a round pancake, with a small hole in the middle of the counterweight block for the connecting rope to pass through. The diameter of the counterweight block is larger than the diameter of the iron ring. When the first weight moves above the iron ring, the first weight holds the counterweight block to move together. When the first weight moves to below the iron ring, the counterweight block is blocked above the iron ring.
[0007] Furthermore, the iron ring is fixed on the U-shaped frame, the iron ring allows the first weight to pass through, but the iron ring does not allow the counterweight to pass through.
[0008] Furthermore, the total mass of the storage box including the items inside is greater than the mass of the first weight and less than the sum of the masses of the first weight and the counterweight.
[0009] The beneficial effects of the utility model are as follows: the utility model can simulate the overweight and weightlessness phenomenon during the operation of the elevator, release the storage box from the upper end of the U-shaped frame, accelerate the storage box downward, and lift the counterweight block after the first heavy object passes through the iron ring, and the storage box decelerates downward, release the storage box from the lower end of the U-shaped frame, accelerate the storage box upward, and after the first heavy object passes through the iron ring, the counterweight block is blocked on the iron ring, and the storage box decelerates upward. The reading of the micro electronic scale and the indication of the acceleration sensor are observed in real time by the camera device, so that the data can be easily collected for quantitative analysis. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a structural schematic diagram of the utility model
[0011] Figure 2 It is the top view of the iron ring
[0012] Figure 3 The top view of the counterweight
[0013] In the figure: 1 is a base, 2 is a U-shaped frame, 3 is a first weight, 4 is an iron ring, 5 is a counterweight, 6 is a fixed pulley, 7 is a connecting rope, 8 is a camera device, 9 is a storage box, 10 is a second weight, 11 is a miniature electronic scale, and 12 is an acceleration sensor DETAILED DESCRIPTION
[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0015] like Figure 1As shown, an overweight and weightlessness experimental device comprises a base 1, on which a U-shaped frame 2 is fixed, the size of the U-shaped frame is preferably 2.7m high and 1.5m wide, two fixed pulleys 6 of equal height are arranged on the upper end of the U-shaped frame 2, a connecting rope 7 is wound between the two fixed pulleys, one end of the connecting rope 7 passes through a counterweight block 5 and an iron ring 4 to be connected to a first weight 3, and the other end is connected to a storage box 9, the size of the storage box 9 is preferably 28cm long, 19cm wide, and 20cm high, a miniature electronic scale 11 and an acceleration sensor 12 are placed on the bottom plate of the storage box 9, the acceleration sensor is preferably a smart phone equipped with phyphox software, a second weight 10 is placed on the miniature electronic scale 11, and a camera device 8 is fixed on the top plate of the storage box 9, the camera device is preferably a smart phone equipped with a high-definition camera. The counterweight 5 is in the shape of a round pancake, and there is a small hole in the middle of the counterweight 5 for the connecting rope 7 to pass through. The diameter of the counterweight 5 is larger than the diameter of the iron ring 4. When the first weight 3 moves above the iron ring 4, the first weight 3 holds the counterweight 5 to move together. When the first weight 3 moves below the iron ring 4, the counterweight 5 is blocked above the iron ring 4. The iron ring 4 is fixed on the U-shaped frame 2. The iron ring 4 allows the first weight 3 to pass through, but the iron ring 4 cannot allow the counterweight 5 to pass through. The total mass of the storage box 9 including the internal items is greater than the mass of the first weight 3, and less than the sum of the masses of the first weight 3 and the counterweight 5. The camera device 8 is aligned with the micro electronic scale 11 and the acceleration sensor 12, and the reading of the micro electronic scale 11 and the indication of the acceleration sensor 12 are observed in real time.
[0016] Usage: Keep the storage box 9 still, observe and record the reading of the micro electronic scale 11 and the indication of the acceleration sensor 12, release the storage box 9 from the upper end of the U-shaped frame 2, the mass of the storage box 9 is greater than the mass of the first weight 3, the storage box 9 accelerates downward, when the first weight 3 passes through the iron ring 4, it lifts the counterweight 5, the mass of the storage box 9 is less than the sum of the masses of the first weight 3 and the counterweight 5, the storage box 9 decelerates downward, simulates the overweight and weightlessness phenomenon during the downward movement of the elevator, and releases the storage box 9 from the lower end of the U-shaped frame 2. The weight of the storage box 9 is less than the sum of the weights of the first weight 3 and the counterweight 5, and the storage box 9 accelerates upward. When the first weight 3 passes through the iron ring, the counterweight 5 is blocked on the iron ring 4. The weight of the storage box 9 is greater than the weight of the first weight 3, and the storage box 9 decelerates upward, simulating the overweight and weightlessness phenomenon in the upward movement of the elevator. The readings of the micro electronic scale 11 and the indications of the acceleration sensor 12 are observed and recorded in real time by the camera equipment, and the relationship between the support force and acceleration of the second weight 10 when it is overweight and weightless is quantitatively analyzed.
[0017] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process changes made using the description and drawings of the present invention, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present invention.
Claims
1. An overweight and weightlessness experimental device, characterized in that: The invention comprises a base (1), a U-shaped frame (2) is fixed on the base (1), two fixed pulleys (6) of equal height are arranged on the upper end of the U-shaped frame (2), a connecting rope (7) is wound between the two fixed pulleys (6), one end of the connecting rope (7) passes through a counterweight block (5) and an iron ring (4) and is connected to a first weight (3), and the other end is connected to a storage box (9), a micro electronic scale (11) and an acceleration sensor (12) are placed on the bottom plate of the storage box (9), a second weight (10) is placed on the micro electronic scale (11), and a camera device (8) is fixed on the top plate of the storage box (9).
2. The overweight and weightlessness experimental device according to claim 1, characterized in that: The counterweight (5) is in the shape of a round pancake, and a small hole is provided in the middle of the counterweight (5) for the connecting rope (7) to pass through. The diameter of the counterweight (5) is larger than the diameter of the iron ring (4). When the first weight (3) moves above the iron ring (4), the first weight (3) supports the counterweight (5) to move together. When the first weight (3) moves below the iron ring (4), the counterweight (5) is blocked above the iron ring (4).
3. The overweight and weightlessness experimental device according to claim 1, characterized in that: The iron ring (4) is fixed on the U-shaped frame (2). The iron ring (4) allows the first weight (3) to pass through, but does not allow the counterweight (5) to pass through.
4. The overweight and weightlessness experimental device according to claim 1, characterized in that: The total mass of the storage box (9) including the items inside is greater than the mass of the first weight (3) and less than the sum of the masses of the first weight (3) and the counterweight (5).