Physics experiment teaching aid

Abstract

The utility model discloses a physics experiment teaching aid, and specifically relates to the physics experiment teaching technology field, the top of a bottom frame is fixedly connected with a support frame, the inner wall of a clamping groove is clamped and connected with a glass plate, one side of the bottom frame is provided with a first motor, one end of a first lead screw is fixedly connected with a connecting rod, and the other end of the first lead screw is fixedly connected with a second lead screw. The outer wall of the second lead screw is in threaded connection with a first threaded ring, the outer wall of the first threaded ring is fixedly connected with an adjusting frame, and the outer wall of the limiting ring is movably connected with a first light source body. According to the physics experiment teaching aid, through the arrangement of the first screw rod, the second screw rod, the adjusting frame and the measuring scale, teaching personnel can conveniently and rapidly measure the distance between the first light source body and the second light source body, and the efficiency of obtaining whether the imaging distance is equal to the object distance or not by the teaching personnel is improved; meanwhile, a student can conveniently observe candle distance measurement in the experiment process, and the stability of plane mirror imaging experiment observation of the student is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of physical experiment teaching, in particular to a physical experiment teaching aid. Background Art

[0002] Physics experiment teaching is an important form and method of physics teaching. It is generally divided into demonstration experiments, small experiments in class (experiments while teaching), student group experiments and extracurricular experiments. Demonstration experiments are performance demonstration experiments with teachers as the main operators, small experiments in class are small experiments operated by students in the classroom teaching process, and student group experiments are the process of students using instruments, observing and measuring, obtaining data, analyzing and processing data, and summarizing conclusions by themselves, including verification experiments and exploratory experiments.

[0003] When conducting a plane mirror imaging experiment, existing physics experimental teaching aids usually use two candles, a glass plate and white paper to complete the plane mirror imaging experiment. Since the candle needs to be tested three times during the plane mirror imaging experiment, teaching staff need to spend more time to locate and measure the distance of the candle, thereby reducing the efficiency of the teaching staff in locating and measuring the distance of the candle. At the same time, the existing plane mirror imaging experimental teaching aids cannot meet the students' observation of candle distance measurement during the experiment, which affects the students' observation effect of the plane mirror imaging experiment. Therefore, the existing physics experimental teaching aids need to be improved to a certain extent. Utility Model Content

[0004] The purpose of the utility model is to provide a physics experiment teaching aid to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a physics experiment teaching aid, comprising a base frame, the top of the base frame is fixedly connected to a support frame, and the top of the support frame is fixedly connected to a limit plate, the outer wall of the limit plate is provided with a slot, and the inner wall of the slot is connected with a glass plate in a snap-fitting manner, a No. 1 motor is arranged on one side of the base frame, and the output shaft of the No. 1 motor is connected to a No. 1 screw rod through a coupling, one end of the No. 1 screw rod is fixedly connected to a connecting rod, and the other end of the connecting rod is fixedly connected to a No. 2 screw rod, the outer wall of the No. 2 screw rod is threadedly connected to a No. 1 threaded ring, and the outer wall of the No. 1 threaded ring is fixedly connected to an adjustment frame;

[0006] The top of the adjusting frame is fixedly connected with a fixing plate, and a No. 2 motor is arranged on the top of the fixing plate, the output shaft of the No. 2 motor is connected with a threaded rod through a coupling, and the outer wall of the threaded rod is threadedly connected with a No. 2 threaded ring, the outer wall of the No. 2 threaded ring is fixedly connected with an adjusting ring, and the inner wall bearing of the adjusting ring is connected with an adjusting frame, the inner wall of the adjusting frame is slidably connected with a connecting rod, and the other end of the connecting rod is fixedly connected with a limiting ring, and the outer wall of the limiting ring is movably connected with a No. 1 light source body.

[0007] Preferably, a first screw rod and a second screw rod are fixedly connected to both ends of the connecting rod, and the second screw rod forms an integrated rotating structure with the first screw rod through the connecting rod, and the first screw rod and the second screw rod are arranged with opposite threads.

[0008] Preferably, there are two adjustment frames, and the two adjustment frames are symmetrically arranged with the mid-vertical line of the base frame as the symmetry axis. The No. 1 threaded ring forms a bolt sliding structure through the No. 1 screw rod and the No. 2 screw rod, and the two adjustment frames form a centering movement through the No. 1 threaded ring.

[0009] Preferably, the inner wall of the adjustment frame is slidably connected to a fixing rod, and the inner wall of the adjustment frame and the outer wall of the fixing rod are similar in shape and size, and the outer wall of the adjustment frame is fixedly connected to a mounting plate.

[0010] Preferably, bearing frames are fixedly connected to both sides of the base frame, and a measuring ruler is slidably connected to the inner wall of the bearing frame, and the other end of the measuring ruler is fixedly connected to a mounting plate, and the measuring ruler forms an integrated structure with the adjustment frame through the mounting plate.

[0011] Preferably, the No. 2 threaded ring forms a threaded sliding structure through a threaded rod, and the adjustment ring forms a rotating structure through the No. 2 threaded ring, the outer wall of the adjustment ring is slidably connected to a fixed plate, and an adjustment groove is penetrated through the outer wall of the adjustment ring.

[0012] Preferably, the adjusting frame forms a rotating structure through an adjusting ring, and the connecting rod forms a telescopic structure through the adjusting frame, the inner wall bearing of the connecting rod is connected to a bearing rod, and the connecting rod forms a rotating structure through the bearing rod.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the teaching aid for physics experiments;

[0014] 1. Through the No. 1 screw, No. 2 screw, adjustment frame and measuring ruler, the No. 1 screw and the No. 2 screw are set with opposite threads, so that the two adjustment frames are adjusted along the No. 1 screw and the No. 2 screw, and at the same time, the mounting plate fixed on the outer wall of the adjustment frame is driven to adjust, and then the mounting plate is driven to stretch and reel the measuring ruler. At this time, the measuring ruler rotates along the bearing frame, so that the measuring ruler adjusts the distance between the base frame and the adjustment frame, and completes the experiment of imaging the No. 1 light source at different positions;

[0015] The invention solves the problem that the existing plane mirror imaging experiment requires the experimenter to manually position and measure, thereby facilitating the teaching staff to quickly measure the distance between the No. 1 light source and the No. 2 light source, improving the efficiency of the teaching staff in obtaining whether the imaging distance and the actual distance are equal, and at the same time facilitating the students to observe the candle distance measurement during the experiment, ensuring the stability of the students' observation of the plane mirror imaging experiment, and increasing the practicality of the overall device.

[0016] 2. The second threaded ring, the adjustment frame and the limit ring are set, and the threaded adjustment is used to drive the adjustment ring to rotate. At this time, the adjustment ring drives the adjustment frame to rotate through the adjustment groove. Since the bearing at one end of the connecting rod is connected to the bearing rod, and the outer wall of the bearing rod is fixedly connected to the fixing plate, the adjustment frame drives the connecting rod to rotate along the bearing rod, thereby driving the connecting rod to telescopically adjust along the inner wall of the adjustment frame, and then driving the other end of the connecting rod to contact the first light source body and the second light source body, thereby completing the limiting of the first light source body and the second light source body;

[0017] Thereby, it is convenient for teaching staff to quickly position the No. 1 light source and the No. 2 light source, improves the efficiency of teaching staff in positioning the No. 1 light source and the No. 2 light source, and prevents the No. 1 light source and the No. 2 light source from offsetting when conducting plane mirror imaging experiments, thereby ensuring the stability of the overall device in conducting plane mirror imaging experiments and improving the accuracy of the overall device in conducting plane mirror imaging experiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a side view structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the first screw rod and the measuring ruler of the utility model;

[0021] Figure 4 It is a schematic diagram of the connection structure between the fixing plate and the adjusting ring of the utility model.

[0022] In the figure: 1. base frame; 2. support frame; 3. limit plate; 4. slot; 5. glass plate; 6. No. 1 motor; 7. No. 1 screw rod; 8. connecting rod; 9. No. 2 screw rod; 10. adjustment frame; 11. No. 1 threaded ring; 12. fixing rod; 13. fixing plate; 14. No. 2 motor; 15. threaded rod; 16. No. 2 threaded ring; 17. adjustment ring; 18. adjustment slot; 19. adjustment frame; 20. connecting rod; 21. bearing rod; 22. limit ring; 23. No. 1 light source; 24. No. 2 light source; 25. bearing frame; 26. measuring ruler; 27. mounting plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-3 The utility model provides a technical solution: a physics experiment teaching aid, including a base frame 1, a support frame 2 is fixedly connected to the top of the base frame 1, and a limit plate 3 is fixedly connected to the top of the support frame 2, a card slot 4 is opened on the outer wall of the limit plate 3, and a glass plate 5 is connected to the inner wall of the card slot 4 in a card-engaged manner, a No. 1 motor 6 is arranged on one side of the base frame 1, and the output shaft of the No. 1 motor 6 is connected to a No. 1 screw rod 7 through a coupling, one end of the No. 1 screw rod 7 is fixedly connected to a connecting rod 8, and the other end of the connecting rod 8 is fixedly connected to a No. 2 screw rod 9, the outer wall of the No. 2 screw rod 9 is threadedly connected to a No. 1 threaded ring 11, and the outer wall of the No. 1 threaded ring 11 is fixedly connected to an adjusting frame 10.

[0025] The two ends of the connecting rod 8 are fixedly connected with a first screw rod 7 and a second screw rod 9, and the second screw rod 9 forms an integrated rotating structure with the first screw rod 7 through the connecting rod 8, and the first screw rod 7 and the second screw rod 9 are arranged with opposite threads;

[0026] There are two adjustment frames 10, and the two adjustment frames 10 are symmetrically arranged with the mid-vertical line of the base frame 1 as the symmetry axis. The No. 1 threaded ring 11 forms a bolt sliding structure through the No. 1 screw rod 7 and the No. 2 screw rod 9, and the two adjustment frames 10 form a centering movement through the No. 1 threaded ring 11;

[0027] The inner wall of the adjustment frame 10 is slidably connected to the fixing rod 12, and the inner wall of the adjustment frame 10 and the outer wall of the fixing rod 12 are of the same shape and size, and the outer wall of the adjustment frame 10 is fixedly connected to the mounting plate 27;

[0028] The two sides of the base frame 1 are fixedly connected with bearing frames 25 , and the inner wall of the bearing frames 25 is slidably connected with a measuring ruler 26 , the other end of the measuring ruler 26 is fixedly connected with a mounting plate 27 , and the measuring ruler 26 forms an integrated structure with the adjustment frame 10 through the mounting plate 27 .

[0029] The specific implementation method is as follows: by setting the No. 1 screw 7, the No. 2 screw 9, the adjustment frame 10 and the measuring ruler 26, the No. 1 screw 7 and the No. 2 screw 9 are arranged with opposite threads, so that the two adjustment frames 10 are adjusted along the No. 1 screw 7 and the No. 2 screw 9, and at the same time, the mounting plate 27 fixed on the outer wall of the adjustment frame 10 is driven to adjust, and then the mounting plate 27 is driven to stretch and reel the measuring ruler 26. At this time, the measuring ruler 26 rotates along the bearing frame 25, so that the measuring ruler 26 adjusts the distance between the base frame 1 and the adjustment frame 10, and completes the experiment of imaging the No. 1 light source 23 at different positions;

[0030] The problem that the existing plane mirror imaging experiment requires manual positioning and measurement by the experimenter is solved, thereby facilitating the teaching staff to quickly measure the distance between the No. 1 light source 23 and the No. 2 light source 24, improving the efficiency of the teaching staff in obtaining whether the imaging distance and the actual distance are equal, and at the same time facilitating the students to observe the candle distance measurement during the experiment, ensuring the stability of the students' observation of the plane mirror imaging experiment, and increasing the practicality of the overall device.

[0031] See also Figure 1-4 The utility model provides a technical solution: a physics experiment teaching aid, the top of the adjustment frame 10 is fixedly connected with a fixing plate 13, and a No. 2 motor 14 is arranged on the top of the fixing plate 13, the output shaft of the No. 2 motor 14 is connected with a threaded rod 15 through a coupling, and the outer wall of the threaded rod 15 is threadedly connected with a No. 2 threaded ring 16, the outer wall of the No. 2 threaded ring 16 is fixedly connected with an adjusting ring 17, and the inner wall bearing of the adjusting ring 17 is connected with an adjusting frame 19, the inner wall of the adjusting frame 19 is slidably connected with a connecting rod 20, and the other end of the connecting rod 20 is fixedly connected with a limiting ring 22, and the outer wall of the limiting ring 22 is movably connected with a No. 1 light source body 23.

[0032] The second threaded ring 16 forms a threaded sliding structure through the threaded rod 15, and the adjusting ring 17 forms a rotating structure through the second threaded ring 16. The outer wall of the adjusting ring 17 is slidably connected with the fixing plate 13, and the outer wall of the adjusting ring 17 is penetrated by an adjusting groove 18;

[0033] The adjusting frame 19 forms a rotating structure through the adjusting ring 17 , and the connecting rod 20 forms a telescopic structure through the adjusting frame 19 . The inner wall bearing of the connecting rod 20 is connected with a bearing rod 21 , and the connecting rod 20 forms a rotating structure through the bearing rod 21 .

[0034] The implementation method is specifically as follows: by setting a No. 2 threaded ring 16, an adjustment frame 19 and a limiting ring 22, the threaded adjustment is used to drive the adjustment ring 17 to rotate. At this time, the adjustment ring 17 drives the adjustment frame 19 to rotate through the adjustment groove 18. Since one end of the connecting rod 20 is connected to the bearing rod 21, and the outer wall of the bearing rod 21 is fixedly connected to the fixing plate 13, the adjustment frame 19 drives the connecting rod 20 to rotate along the bearing rod 21, thereby driving the connecting rod 20 to perform telescopic adjustment along the inner wall of the adjustment frame 19, and then driving the other end of the connecting rod 20 to contact the No. 1 light source body 23 and the No. 2 light source body 24, thereby completing the limiting of the No. 1 light source body 23 and the No. 2 light source body 24;

[0035] Thereby, it is convenient for teaching staff to quickly position the No. 1 light source 23 and the No. 2 light source 24, and improves the efficiency of teaching staff in positioning the No. 1 light source 23 and the No. 2 light source 24, and at the same time prevents the No. 1 light source 23 and the No. 2 light source 24 from offsetting when conducting plane mirror imaging experiments, thereby ensuring the stability of the overall device in conducting plane mirror imaging experiments, and improving the accuracy of the overall device in conducting plane mirror imaging experiments.

[0036] Working principle: When using the teaching aid for physics experiments, firstly, the glass plate 5 is engaged with the slot 4 provided on the outer wall of the limiting plate 3 to complete the installation of the glass plate 5, and then the No. 1 light source body 23 and the No. 2 light source body 24 are sequentially placed in the fixing plate 13, and the No. 2 motor 14 is started. At this time, the No. 2 motor 14 drives the threaded rod 15 to rotate, so that the threaded rod 15 drives the No. 2 threaded ring 16 connected to the outer wall thread to slide, thereby driving the adjustment ring 17 to rotate along the fixing plate 13 through the No. 2 threaded ring 16, and then driving the adjustment frame 19 to rotate through the adjustment slot 18 provided through the outer wall of the adjustment ring 17;

[0037] Since one end of the connecting rod 20 is connected to the bearing rod 21, and the position of the bearing rod 21 remains unchanged, the adjusting frame 19 drives the connecting rod 20 to rotate along the bearing rod 21, so that the connecting rod 20 is telescopically adjusted along the inner wall of the adjusting frame 19, thereby driving the other end of the connecting rod 20 to contact the first light source body 23 and the second light source body 24, and then through the synchronous adjustment of the three connecting rods 20, the first light source body 23 and the second light source body 24 are limited;

[0038] When the teaching staff needs to experiment with imaging of the No. 1 light source 23 and the No. 2 light source 24, the No. 1 light source 23 is ignited so that the No. 1 light source 23 is imaged at the No. 2 light source 24 through the glass plate 5. When the teaching staff needs to experiment whether the imaging distance is equal to the actual distance, the No. 1 motor 6 is started so that the No. 1 motor 6 drives the No. 1 screw 7 to rotate, because the two ends of the connecting rod 8 are fixedly connected to the No. 1 screw 7 and the No. 2 screw 9;

[0039] This drives the No. 2 screw 9 to follow the connecting rod 8 and the No. 1 screw 7 to form a synchronous rotation, and then drives the adjustment frame 10 that is threadedly connected to the outer wall of the No. 1 screw 7 and the No. 2 screw 9 to be adjusted. At this time, the adjustment frame 10 slides along the No. 1 screw 7 and the No. 2 screw 9 through the No. 1 threaded ring 11, so that the adjustment frame 10 slides along the fixed rod 12; thereby driving the mounting plate 27 fixed to the outer wall of the adjusting frame 10 to be adjusted, and then driving the mounting plate 27 to stretch and reel the measuring ruler 26. At this time, the measuring ruler 26 rotates along the bearing frame 25, so that the measuring ruler 26 adjusts the distance between the base frame 1 and the adjusting frame 10, completing the experiment of imaging the No. 1 light source 23 at different positions.

[0040] 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. A physics experiment teaching aid, comprising a base frame (1), characterized in that: The top of the base frame (1) is fixedly connected to a support frame (2), and the top of the support frame (2) is fixedly connected to a limit plate (3), the outer wall of the limit plate (3) is provided with a slot (4), and the inner wall of the slot (4) is snap-connected to a glass plate (5), a No. 1 motor (6) is arranged on one side of the base frame (1), and the output shaft of the No. 1 motor (6) is connected to a No. 1 screw rod (7) through a coupling, one end of the No. 1 screw rod (7) is fixedly connected to a connecting rod (8), and the other end of the connecting rod (8) is fixedly connected to a No. 2 screw rod (9), the outer wall of the No. 2 screw rod (9) is threadedly connected to a No. 1 threaded ring (11), and the outer wall of the No. 1 threaded ring (11) is fixedly connected to an adjustment frame (10); The top of the adjustment frame (10) is fixedly connected to a fixing plate (13), and a No. 2 motor (14) is arranged on the top of the fixing plate (13); the output shaft of the No. 2 motor (14) is connected to a threaded rod (15) through a coupling, and the outer wall of the threaded rod (15) is threadedly connected to a No. 2 threaded ring (16); the outer wall of the No. 2 threaded ring (16) is fixedly connected to an adjustment ring (17), and the inner wall bearing of the adjustment ring (17) is connected to an adjustment frame (19); the inner wall of the adjustment frame (19) is slidably connected to a connecting rod (20), and the other end of the connecting rod (20) is fixedly connected to a limiting ring (22), and the outer wall of the limiting ring (22) is movably connected to a No. 1 light source body (23).

2. A physics experiment teaching aid according to claim 1, characterized in that: The two ends of the connecting rod (8) are fixedly connected to a first screw rod (7) and a second screw rod (9), and the second screw rod (9) forms an integrated rotating structure with the first screw rod (7) through the connecting rod (8), and the first screw rod (7) and the second screw rod (9) are arranged with opposite threads.

3. A physics experiment teaching aid according to claim 2, characterized in that: There are two adjustment frames (10), and the two adjustment frames (10) are symmetrically arranged with the mid-vertical line of the base frame (1) as the symmetry axis. The No. 1 threaded ring (11) forms a bolt sliding structure through the No. 1 screw rod (7) and the No. 2 screw rod (9), and the two adjustment frames (10) form a centering movement through the No. 1 threaded ring (11).

4. A physics experiment teaching aid according to claim 1, characterized in that: The inner wall of the adjustment frame (10) is slidably connected to a fixing rod (12), and the inner wall of the adjustment frame (10) is similar in shape and size to the outer wall of the fixing rod (12), and the outer wall of the adjustment frame (10) is fixedly connected to a mounting plate (27).

5. A physics experiment teaching aid according to claim 1, characterized in that: The two sides of the base frame (1) are fixedly connected to bearing frames (25), and the inner wall of the bearing frame (25) is slidably connected to a measuring ruler (26), the other end of the measuring ruler (26) is fixedly connected to a mounting plate (27), and the measuring ruler (26) forms an integrated structure with the adjustment frame (10) through the mounting plate (27).

6. A physics experiment teaching aid according to claim 1, characterized in that: The second threaded ring (16) forms a threaded sliding structure through the threaded rod (15), and the adjustment ring (17) forms a rotating structure through the second threaded ring (16); the outer wall of the adjustment ring (17) is slidably connected to a fixed plate (13), and an adjustment groove (18) is formed through the outer wall of the adjustment ring (17).

7. A physics experiment teaching aid according to claim 1, characterized in that: The adjusting frame (19) forms a rotating structure through the adjusting ring (17), and the connecting rod (20) forms a telescopic structure through the adjusting frame (19); the inner wall bearing of the connecting rod (20) is connected to a bearing rod (21), and the connecting rod (20) forms a rotating structure through the bearing rod (21).

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