Experimental device for demonstrating uniform linear motion of bubbles

Abstract

The utility model discloses an experimental device for demonstrating uniform linear motion of bubbles, which comprises a back plate, a positioning plate arranged at the top of the back plate, a laser positioning assembly arranged below the positioning plate, an adjusting plate arranged above the positioning plate, a glass tube arranged above the adjusting plate, and an arc plate arranged inside the adjusting plate. The arc grooves are formed in the upper portion of the positioning plate and the rear side of the adjusting plate respectively, different experiment requirements and observation angles are met, the positioning plate can rotate relative to the adjusting plate through the rotating shaft, multiple observation angles are provided, and the motion state of bubbles can be better observed conveniently. The adjusting plate and the positioning plate are connected more stably and are easy to operate, so that the adjusting process is simplified, students are helped to better understand the concept of uniform linear motion, and the students can conveniently measure the time required for the bubbles to pass through the laser beams through the intersection point of the laser and the bubbles, and can conveniently calculate the speed and record data.

Description

Technical Field

[0001] The utility model belongs to the technical field related to scientific experimental equipment, and particularly relates to an experimental device for demonstrating uniform linear motion of bubbles. Background Art

[0002] Experimental devices that demonstrate the uniform linear motion of bubbles are often used in physics teaching. Their purpose is to help students intuitively understand the concept of uniform linear motion. Students can observe the movement of bubbles in a water-filled glass tube and verify their uniformity by timing and measuring distance.

[0003] However, the existing experimental process usually uses a rectangular or circular water tank filled with liquid. A thin tube or a tube with a bubble stone is used to introduce gas into the bottom of the container to form bubbles, thereby simulating the effect of uniform linear motion. The gas speed cannot be adjusted and observation is difficult, which is not conducive to the collection of experimental data and student understanding. Utility Model Content

[0004] The purpose of the utility model is to provide an experimental device for demonstrating the uniform linear motion of bubbles, so as to solve the problem that the existing experimental process proposed in the above background technology usually uses a rectangular or circular water tank filled with liquid, uses a thin tube or a tube with a bubble stone to introduce gas into the bottom of the container to form bubbles, thereby simulating the effect of uniform linear motion, the gas speed cannot be adjusted, and observation is difficult, which is not conducive to the collection of experimental data and students' understanding.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an experimental device for demonstrating uniform linear motion of bubbles, comprising a back plate;

[0006] A positioning plate is provided at the top of the back plate, a laser positioning assembly is provided below the positioning plate, a timer is provided at the lower interior of the back plate, and a control button is provided inside the timer;

[0007] An adjusting plate is provided above the positioning plate, a glass tube is provided above the adjusting plate, and an arc plate is provided inside the adjusting plate.

[0008] Preferably, arc grooves are respectively provided at the upper position of the positioning plate and the rear position of the adjustment plate, the arc grooves correspond to the arc plates, pin holes are respectively provided at the upper and lower positions of the arc plates, and the positioning plate and the adjustment plate are slidably connected through the arc grooves and the arc plates.

[0009] Preferably, a rotating shaft is provided at the right side of the positioning plate, and the positioning plate is rotatably connected to the top of the adjustment plate through the rotating shaft.

[0010] Preferably, bubbles are provided at an inner position of the glass tube, and the glass tube is fixedly connected to the adjustment plate.

[0011] Preferably, a mounting plate is provided at the rear side of the laser positioning assembly, a clamping groove is provided at the front side of the mounting plate, and a laser emitter is provided at an inner position of the clamping groove.

[0012] Preferably, fixing plates are respectively provided at the left and right sides of the clamping groove, fixing bolts are provided at the inner positions of the fixing plates, the clamping groove is fixedly connected to the mounting plate through the fixing plates, and a bottom plate is provided at the bottom position of the clamping groove.

[0013] Preferably, a scale mark is provided at the bottom of the adjustment plate, the laser positioning assembly, positioning plate and timer are magnetically connected to the back plate through a magnetic plate provided at the rear side, and a laser marking instrument is provided at the right position above the back plate.

[0014] Compared with the prior art, the present invention provides an experimental device for demonstrating uniform linear motion of bubbles, which has the following beneficial effects:

[0015] 1. Through the arrangement of the adjustment plate, glass tube, arc plate, arc groove, pin hole and rotating shaft, the adjustment plate can move up and down relative to the positioning plate, so that the user can easily adjust the position of the glass tube to adapt to different experimental needs and observation angles. Through the rotating shaft, the positioning plate can rotate relative to the adjustment plate, providing a variety of observation angles, which is convenient for better observation of the movement state of the bubbles. The sliding connection design of the arc groove and the arc plate makes the connection between the adjustment plate and the positioning plate more stable and easy to operate, thereby simplifying the adjustment process. The fixed connection between the glass tube and the adjustment plate can ensure that the bubbles will not be displaced due to the vibration of the equipment during the experiment, providing more stable observation conditions. The closed design of the glass tube ensures that the bubbles will not directly contact the external environment during movement, thereby reducing the risk of accidents.

[0016] 2. Through the arrangement of the mounting plate, clamping groove, laser emitter, fixing plate and base plate, the combined design of the clamping groove and fixing plate can firmly fix the laser emitter on the mounting plate, reduce the impact of vibration, and ensure the stability and accuracy of the laser beam. The laser emitter is connected to the fixing plate through the clamping groove, making installation, removal and replacement simple and convenient, suitable for environments where frequent experiments are conducted. The design of the mounting plate and the clamping groove can be adjusted according to experimental requirements. Users can flexibly change the position and angle of the laser emitter to more accurately align with the movement trajectory of the bubble. The laser emitter can clearly mark the path of the bubble movement, providing an intuitive visualization effect to help students better understand the concept of uniform linear motion. Through the intersection of the laser and the bubble, students can easily measure the time required for the bubble to pass through the laser beam, which is convenient for speed calculation and data recording. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the present utility model.

[0018] Figure 2 It is a structural schematic diagram of the angle adjustment of the adjustment plate in the utility model.

[0019] Figure 3 This is a schematic diagram of the structure of the laser positioning component in the present utility model.

[0020] Figure 4 This is a structural diagram of the arc plate of the utility model.

[0021] In the figure: 1. Back plate; 2. Bubble; 3. Positioning plate; 4. Glass tube; 5. Laser positioning assembly; 6. Timer; 7. Control button; 8. Adjustment plate; 9. Scale mark; 10. Arc groove; 11. Arc plate; 12. Pin hole; 13. Rotating shaft; 14. Laser emitter; 15. Fixing bolt; 16. Mounting plate; 17. Clamping groove; 18. Bottom plate; 19. Fixing plate; 20. Magnetic plate; 21. Laser marking instrument. DETAILED DESCRIPTION

[0022] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0023] The utility model provides Figure 1-4 An experimental device for demonstrating uniform linear motion of bubbles is shown, comprising a back plate 1;

[0024] A positioning plate 3 is provided at the top of the back panel 1, a laser positioning assembly 5 is provided below the positioning plate 3, a timer 6 is provided at the lower interior of the back panel 1, and a control button 7 is provided inside the timer 6;

[0025] An adjusting plate 8 is provided above the positioning plate 3 , a glass tube 4 is provided above the adjusting plate 8 , and an arc plate 11 is provided inside the adjusting plate 8 .

[0026] Arc grooves 10 are respectively provided at the upper position of the positioning plate 3 and the rear position of the adjustment plate 8. The arc grooves 10 correspond to the arc plates 11. Pin holes 12 are respectively provided at the upper and lower sides of the arc plates 11. The positioning plate 3 and the adjustment plate 8 are slidingly connected through the arc grooves 10 and the arc plates 11.

[0027] A rotating shaft 13 is provided at the right side of the positioning plate 3 , and the positioning plate 3 is rotatably connected to the top of the adjusting plate 8 through the rotating shaft 13 .

[0028] An air bubble 2 is provided inside the glass tube 4 , and the glass tube 4 is fixedly connected to the adjustment plate 8 .

[0029] A mounting plate 16 is provided at the rear side of the laser positioning assembly 5 , a clamping groove 17 is provided at the front side of the mounting plate 16 , and a laser emitter 14 is provided inside the clamping groove 17 .

[0030] Fixing plates 19 are respectively provided at the left and right sides of the clamping groove 17 , fixing bolts 15 are provided inside the fixing plates 19 , the clamping groove 17 is fixedly connected to the mounting plate 16 through the fixing plates 19 , and a bottom plate 18 is provided at the bottom of the bottom clamping groove 17 .

[0031] A scale mark 9 is provided at the bottom of the adjustment plate 8. The laser positioning assembly 5, the positioning plate 3 and the timer 6 are magnetically connected to the back plate 1 through the magnetic plate 20 provided at the rear side. A laser marking instrument is provided at the upper right position of the back plate.

[0032] In this embodiment, the specific implementation steps of an experimental device for demonstrating uniform linear motion of bubbles are as follows: the positions of the positioning plate 3 and the adjustment plate 8 are adjusted by the rotating shaft to ensure that the glass tube 4 is in a suitable position for observing the bubbles; the adjustment plate 8 can be moved up and down; the speed at which the bubbles rise in the glass tube is adjusted by rolling the arc groove 10 and the arc plate 11; the laser emitter 14 is started to ensure that the laser beam can accurately align with the movement trajectory of the bubbles; this can be adjusted by checking whether the laser point is on the bubbles; the control button 7 is pressed to start the timer 6 to record the time required for the bubbles to rise; ensure that the timer is ready and can accurately record the time; during the start of the bubble generation process, the upward movement of the bubbles from the glass tube 4 is observed; attention is paid to the interaction between the bubbles and the laser beam during the rising process; the time when the bubbles pass through the laser beam is recorded; the scale mark 9 is used to record the height and time of the bubble rise; uniform linear motion analysis is performed; the rising speed of the bubbles is compared with the time record of the laser positioning point to calculate the speed of the bubbles.

[0033] like Figure 1-2 and Figure 4As shown, an adjusting plate 8 is provided above the positioning plate 3, a glass tube 4 is provided above the adjusting plate 8, an arc plate 11 is provided inside the adjusting plate 8, arc grooves 10 are provided above the positioning plate 3 and at the rear side of the adjusting plate 8, the arc grooves 10 correspond to the arc plates 11, pin holes 12 are provided at the upper and lower sides of the arc plates 11, the positioning plate 3 and the adjusting plate 8 are slidingly connected through the arc grooves 10 and the arc plates 11, a rotating shaft 13 is provided at the right side of the positioning plate 3, the positioning plate 3 is rotatably connected to the top of the adjusting plate 8 through the rotating shaft 13, a bubble 2 is provided inside the glass tube 4, and the glass tube 4 is fixedly connected to the adjusting plate 8.

[0034] Preferably, the adjustment plate 8 can move up and down relative to the positioning plate 3, so that the user can easily adjust the position of the glass tube 4 to adapt to different experimental needs and observation angles. Through the rotating shaft 13, the positioning plate 3 can rotate relative to the adjustment plate 8 to provide a variety of observation angles, which is convenient for better observing the movement state of the bubbles. The sliding connection design of the arc groove 10 and the arc plate 11 makes the connection between the adjustment plate 8 and the positioning plate 3 more stable and easy to operate, thereby simplifying the adjustment process. The fixed connection between the glass tube 4 and the adjustment plate 8 can ensure that the bubbles will not be displaced due to the vibration of the equipment during the experiment, providing more stable observation conditions. The closed design of the glass tube 4 ensures that the bubbles will not directly contact the external environment during movement, thereby reducing the risk of accidents.

[0035] like Figure 1-3 As shown, a mounting plate 16 is provided at the rear side of the laser positioning assembly 5, a clamping groove 17 is provided at the front side of the mounting plate 16, a laser emitter 14 is provided inside the clamping groove 17, fixing plates 19 are provided at the left and right sides of the clamping groove 17 respectively, a fixing bolt 15 is provided inside the fixing plate 19, the clamping groove 17 is fixedly connected to the mounting plate 16 through the fixing plate 19, and a bottom plate 18 is provided at the bottom of the bottom clamping groove 17.

[0036] Preferably, the combined design of the clamping groove 17 and the fixing plate 19 can firmly fix the laser emitter 14 on the mounting plate 16, reduce the impact of vibration, and ensure the stability and accuracy of the laser beam. The laser emitter 14 is connected to the fixing plate 19 through the clamping groove 17, making installation, disassembly and replacement simple and convenient, which is suitable for an environment where experiments are frequently conducted. The design of the mounting plate 16 and the clamping groove 17 can be adjusted according to experimental requirements. The user can flexibly change the position and angle of the laser emitter to more accurately align with the movement trajectory of the bubble. The laser emitter can clearly mark the path of the bubble movement, provide an intuitive visualization effect, and help students better understand the concept of uniform linear motion. Through the intersection of the laser and the bubble, students can easily measure the time required for the bubble to pass through the laser beam, which is convenient for speed calculation and data recording.

[0037] like Figure 1-4 As shown, a scale mark 9 is provided at the bottom of the adjustment plate 8, the laser positioning assembly 5, the positioning plate 3 and the timer 6 are magnetically connected to the back plate 1 through the magnetic plate 20 provided at the rear position, and a laser marking instrument is provided at the upper right position of the back plate.

[0038] Optionally, the scale mark 9 at the bottom of the adjustment plate 8 provides an accurate reference for height measurement. Students can accurately record the height to which the bubble rises, which is convenient for speed calculation and data analysis. The laser positioning component 5, the positioning plate 3 and the timer 6 are magnetically connected to the back plate 1 through the magnetic plate 20, which simplifies the installation and disassembly process of the equipment, reduces the use of fixing screws, and makes the operation more convenient. A laser marking instrument is fixed on the back plate, which can accurately display the inclination angle of the glass tube and flexibly control the movement speed of the bubble, which is helpful for collecting the best experimental data. At the same time, the inclination angle can be changed multiple times to explore the relationship between the speed of the bubble movement and the inclination angle, thereby broadening the scope of use of the equipment.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An experimental device for demonstrating uniform linear motion of bubbles, comprising a back plate (1); A positioning plate (3) is provided at the top of the back plate (1), a laser positioning assembly (5) is provided below the positioning plate (3), a timer (6) is provided at the lower interior of the back plate (1), and a control button (7) is provided inside the timer (6); Its characteristics are: An adjustment plate (8) is provided above the positioning plate (3), a glass tube (4) is provided above the adjustment plate (8), and an arc plate (11) is provided inside the adjustment plate (8).

2. The experimental device for demonstrating uniform linear motion of bubbles according to claim 1, characterized in that: Arc grooves (10) are respectively provided at the upper position of the positioning plate (3) and the rear position of the adjustment plate (8), the arc grooves (10) correspond to the arc plate (11), and pin holes (12) are respectively provided at the upper and lower positions of the arc plate (11), and the positioning plate (3) and the adjustment plate (8) are slidably connected through the arc grooves (10) and the arc plate (11).

3. The experimental device for demonstrating uniform linear motion of bubbles according to claim 2, characterized in that: A rotating shaft (13) is provided at the right side of the positioning plate (3), and the positioning plate (3) is rotatably connected to the top of the adjustment plate (8) via the rotating shaft (13).

4. The experimental device for demonstrating uniform linear motion of bubbles according to claim 3, characterized in that: An air bubble (2) is provided at an inner position of the glass tube (4), and the glass tube (4) is fixedly connected to the adjustment plate (8).

5. The experimental device for demonstrating uniform linear motion of bubbles according to claim 1, characterized in that: A mounting plate (16) is provided at the rear side of the laser positioning assembly (5), a clamping groove (17) is provided at the front side of the mounting plate (16), and a laser emitter (14) is provided at an inner position of the clamping groove (17).

6. The experimental device for demonstrating uniform linear motion of bubbles according to claim 5, characterized in that: Fixed plates (19) are respectively provided at the left and right sides of the clamping groove (17), and fixing bolts (15) are provided at the inner positions of the fixing plates (19). The clamping groove (17) is fixedly connected to the mounting plate (16) through the fixing plates (19), and a bottom plate (18) is provided at the bottom position of the clamping groove (17).

7. The experimental device for demonstrating uniform linear motion of bubbles according to claim 1, characterized in that: A scale mark (9) is provided at the bottom of the adjustment plate (8); the laser positioning assembly (5), the positioning plate (3) and the timer (6) are magnetically connected to the back plate (1) via a magnetic plate (20) provided at the rear side; and a laser marking instrument (21) is provided at the upper right side of the back plate (1).

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