Physical parabola teaching aid

Abstract

The invention relates to the technical field of teaching aids, in particular to a physical parabola teaching aid which comprises a working table assembly, a transmitting assembly is fixedly connected to the left rear side of the upper end of the working table assembly, a fixing assembly is embedded into the inner side of the working table assembly, the transmitting assembly penetrates through the working table assembly, and the working table assembly comprises a base. According to the physical parabola teaching aid, the working table assembly and the fixing assembly are arranged, the first adjusting pipes and the second adjusting pipes of the working table assembly are in sliding fit, and the table top can be directly moved up and down to be adjusted without tools; different heights can be accurately positioned by matching with coincident locking of the first fixing groove and the second fixing groove; the initial height and the launching angle are changed, initial speed adjustment controlled by a push rod in the launching assembly is matched, operation is convenient and efficient, and the classroom teaching efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of teaching aids technology, and in particular to teaching aids for physics parabolas. Background Technology

[0002] In middle school physics teaching, parabolic motion is one of the core knowledge points of the mechanics module. It involves abstract principles such as the relationship between initial height, initial velocity and trajectory shape, and the influence of gravity on the trajectory. It needs to be understood by students through concrete experiments. The existing teaching aids are a workbench and a launcher.

[0003] However, some teaching aids cannot adjust the launch height and launch angle, and can only demonstrate the parabola under a single working condition, which is difficult to meet the teaching needs of exploring the influence of initial height and initial velocity on the trajectory; a few adjustable teaching aids require tools to disassemble parts for adjustment, which is cumbersome and makes it difficult to complete multiple sets of variable experiments in class time, thus reducing teaching efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a teaching aid for teaching physics parabolas.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: it includes a workbench assembly, a transmitting assembly is fixedly connected to the upper left rear side of the workbench assembly, a fixing assembly is embedded in the inner side of the workbench assembly, and the transmitting assembly penetrates through the workbench assembly.

[0006] Preferably, the workbench assembly includes a base, with a first adjusting tube fixedly connected to the four corners of the upper end of the base, a second adjusting tube slidably connected to the inner side of the first adjusting tube, a desktop provided at the upper end of the second adjusting tube, a support frame slidably connected to the outer side of the second adjusting tube located on the right end, and a fixing frame sleeved at both the front and rear ends of the outer side of the second adjusting tube located on the left end.

[0007] Preferably, the launching assembly includes a reinforcing box, a launching box is fixedly connected to the inner side of the reinforcing box, a cover is snapped onto the upper end of the launching box, a mounting plate is fixedly connected to the left inner end of the launching box, a launching tube is fixedly connected to the right end of the mounting plate, a push rod is slidably connected to the upper end of the launching tube, a push tube is slidably connected to the inner side of the launching tube, and an elastic spring is fixedly connected to the left end of the push tube.

[0008] Preferably, the fixing component includes a screw, a rotating block is fixedly connected to the right end of the screw, a groove is provided at the right end of the rotating block, a locking block is embedded at the outer left end of the screw, a fixing spring is embedded at the inner side of the screw, and a ball is fixedly connected to the left end of the fixing spring.

[0009] Preferably, the upper end of the support frame is fixedly connected to the lower end of the desktop, and the upper end of the fixed frame is fixedly connected to the desktop by screws.

[0010] Preferably, the second adjusting tube passes through the first adjusting tube, and the upper outer end of the second adjusting tube is slidably connected to the tabletop.

[0011] Preferably, the push rod passes through the launch tube, the launch box, and the reinforcement box, and the push rod is slidably connected to the launch box and the reinforcement box.

[0012] Preferably, the push tube passes through the launch tube, and the left end of the elastic spring is fixedly connected to the inner left end of the launch box, and a through hole is provided at the right end of the launch box.

[0013] Preferably, the outer side of the first adjusting tube is provided with a second fixing groove with equal spacing, and the right end of the outer side of the second adjusting tube is provided with a first fixing groove with equal spacing, and the second fixing groove and the first fixing groove are arranged to overlap.

[0014] Preferably, the ball passes through the screw, and the ball and the screw are slidably connected.

[0015] The present invention has the following beneficial effects:

[0016] Compared with existing technologies, this physics parabola teaching aid, through its set worktable component and fixing component, allows for direct up-and-down movement and adjustment of the tabletop without tools by sliding the first and second adjustment tubes of the worktable component together. Combined with the overlapping and locking of the first and second fixing slots, it can accurately position different heights; change the initial height and launch angle, and adjust the initial velocity controlled by the push rod in the launch component. The operation is convenient and efficient, improving classroom teaching efficiency.

[0017] Compared with existing technologies, this physics parabola teaching aid, by setting up a sphere and a fixed spring, allows the fixed spring to automatically push the sphere through the screw and into the overlapping groove when the workbench assembly adjusts its height. The second fixed groove of the first adjusting tube coincides with the first fixed groove of the second adjusting tube. The sphere can conform to the arc of the groove wall to adapt to the gap, avoiding loosening due to component processing errors. At the same time, the locking block on the outside of the screw can help position the screw and prevent the screw from shifting during adjustment. Combined with the rigid connection between the screw and the rotating block, a dual fixing structure of "elastic tightening + rigid positioning" is formed. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 3 For the present invention Figure 1 A schematic diagram of the structure viewed from below;

[0021] Figure 4 For the present invention Figure 1 Schematic diagram of the structure at the explosion site;

[0022] Figure 5 This is a schematic diagram of the structure at the explosion point where the launching component of the present invention is installed;

[0023] Figure 6 This is a schematic diagram of the structure at the explosion point of the installation of the fixing component of the present invention.

[0024] Legend:

[0025] 1. Workbench assembly; 101. Base; 102. First adjustment tube; 103. Second adjustment tube; 104. Desktop; 105. Support frame; 106. Fixing frame;

[0026] 2. Launching assembly; 201. Reinforced box; 202. Launching box; 203. Cover; 204. Mounting plate; 205. Launch tube; 206. Push rod; 207. Push tube; 208. Elastic spring; 209. Through hole;

[0027] 3. Fixing components; 301. First fixing groove; 302. Second fixing groove; 303. Screw; 304. Rotating block; 305. Groove; 306. Locking block; 307. Fixing spring; 308. Ball. Detailed Implementation

[0028] Reference Figure 1-6 The physical parabola teaching aid provided by the present invention includes a workbench assembly 1, a launching assembly 2 fixedly connected to the upper left rear side of the workbench assembly 1, a fixing assembly 3 embedded in the inner side of the workbench assembly 1, and the launching assembly 2 penetrating through the workbench assembly 1.

[0029] As a further implementation of the above technical solution: during the teaching process, the angle and height of the workbench component 1 can be adjusted by the device to facilitate experiments.

[0030] Preferably, the workbench assembly 1 includes a base 101, with a first adjusting tube 102 fixedly connected to the four corners of the upper end of the base 101. A second adjusting tube 103 is slidably connected to the inner side of the first adjusting tube 102. A desktop 104 is provided at the upper end of the second adjusting tube 103. A support frame 105 is slidably connected to the outer side of the second adjusting tube 103 located on the right end. Fixing frames 106 are sleeved on both the front and rear ends of the outer side of the second adjusting tube 103 located on the left end.

[0031] As a further implementation of the above technical solution: the first adjustment tube 102 and the second adjustment tube 103 are slidably connected, which can flexibly adjust the height and angle of the desktop 104, adjust the initial launch height to study the parabola, and slidably connect the second adjustment tube 103 to the inner side of the corresponding first adjustment tube 102 to form a liftable support structure. The desktop 104 is placed on the upper end of the second adjustment tube 103, and the support frame 105 is slidably connected to the outer side of the right end of the second adjustment tube 103. The fixing frame 106 is sleeved on the front and rear ends of the outer side of the left end of the second adjustment tube 103 to complete the basic assembly of the workbench component 1.

[0032] Preferably, the launching assembly 2 includes a reinforcing box 201, a launching box 202 is fixedly connected to the inner side of the reinforcing box 201, a cover 203 is snapped onto the upper end of the launching box 202, a mounting plate 204 is fixedly connected to the left inner end of the launching box 202, a launching tube 205 is fixedly connected to the right end of the mounting plate 204, a push rod 206 is slidably connected to the upper end of the launching tube 205, a push tube 207 is slidably connected to the inner side of the launching tube 205, and an elastic spring 208 is fixedly connected to the left end of the push tube 207.

[0033] As a further implementation of the above technical solution: the reinforcement box 201 encloses the launch box 202, enhances the overall rigidity of the launch assembly 2, avoids component displacement due to vibration during launch, and ensures the repeatability of the parabolic trajectory. The push rod 206, push tube 207, and elastic spring 208 work together to store energy by compressing the spring and release energy by resetting, which can stably control the initial velocity of the launch object. This can be used to study the physical knowledge point of the influence of the initial velocity on the parabola.

[0034] Preferably, the fixing component 3 includes a screw 303, a rotating block 304 is fixedly connected to the right end of the screw 303, a groove 305 is provided on the right end of the rotating block 304, a locking block 306 is embedded in the outer left end of the screw 303, a fixing spring 307 is embedded in the inner side of the screw 303, and a ball 308 is fixedly connected to the left end of the fixing spring 307.

[0035] As a further implementation of the above technical solution: to prevent accidental damage during operation, the groove 305 on the right end of the rotating block 304 facilitates the use of tools to rotate the screw 303, making operation effortless and suitable for students to adjust independently. The locking block 306, the fixing spring 307, and the ball 308 work together to form an elastic fixing structure that can adapt to the gaps between components, achieving stable fixing and preventing the components from loosening during the experiment.

[0036] Preferably, the upper end of the support frame 105 is fixedly connected to the lower end of the desktop 104, and the upper end of the fixing frame 106 is fixedly connected to the desktop 104 by screws.

[0037] As a further implementation of the above technical solution: When assembling the workbench assembly 1, after the support frame 105 slides to the appropriate position of the right end second adjustment tube 103, the upper end of the support frame 105 is fixed to the lower end of the desktop 104; after the fixing frame 106 is sleeved on the outside of the left end second adjustment tube 103, the upper end of the fixing frame 106 is tightened to the lower end of the desktop 104 with screws to complete the rigid connection between the desktop 104 and the support component.

[0038] Preferably, the second adjusting tube 103 passes through the first adjusting tube 102, and the upper outer end of the second adjusting tube 103 is slidably connected to the tabletop 104.

[0039] As a further implementation of the above technical solution: the second adjusting tube 103 passes through the first adjusting tube 102, making the adjustment tube more stable when it rises and falls, avoiding deviation that would cause the tabletop 104 to tilt. The upper outer end of the second adjusting tube 103 is slidably connected to the tabletop 104, which can finely adjust the horizontal position of the tabletop 104 to increase the flexibility of the teaching aid operation and adapt to different experimental needs.

[0040] Preferably, the push rod 206 passes through the launch tube 205, the launch box 202 and the reinforcement box 201, and the push rod 206 is slidably connected to the launch box 202 and the reinforcement box 201.

[0041] As a further implementation of the above technical solution: the push rod 206 passes through the launch tube 205, launch box 202, and reinforcement box 201 to form a linear motion channel, ensuring the stability of the movement direction of the push rod 206, avoiding jamming or deviation, ensuring that the push tube 207 is subjected to uniform force and the initial velocity of the launch object is consistent during each launch, and the experiment has good repeatability. During the experiment: push the push rod 206 along the through channel, and the push rod 206 drives the push tube 207 in the launch tube 205 to compress the elastic spring 208. After releasing, the push rod 206 returns to its original position along with the push tube 207 and the elastic spring 208, waiting for the next launch.

[0042] Preferably, the push tube 207 passes through the launch tube 205, and the left end of the elastic spring 208 is fixedly connected to the inner left end of the launch box 202, and the right end of the launch box 202 is provided with a through hole 209.

[0043] As a further implementation of the above technical solution: the elastic spring 208 is fixed to the left end of the inner side of the launch box 202, ensuring a stable position and consistent force direction during each compression and reset, further guaranteeing the stability of the initial velocity of the launch object; the through hole 209 at the right end of the launch box 202 clearly defines the launch object outlet, preventing the launch object from remaining inside the box and improving the success rate of the experiment; the push tube 207 is inserted from one end of the launch tube 205 to the inner side, ensuring smooth sliding; the left end of the elastic spring 208 is fixed to the left end of the inner side of the launch box 202, and the right end is connected to the left end of the push tube 207; during launch: the push tube 207 compresses the elastic spring 208 inside the launch tube 205; when the elastic spring 208 resets, it pushes the push tube 207 to push the launch object out of the through hole 209 at the right end of the launch box 202, completing the launch.

[0044] Preferably, the outer side of the first adjusting tube 102 is provided with a second fixing groove 302 with equal gaps, and the right end of the outer side of the second adjusting tube 103 is provided with a first fixing groove 301 with equal gaps, and the second fixing groove 302 and the first fixing groove 301 are arranged to overlap.

[0045] As a further implementation of the above technical solution: the gaps between the first adjusting tube 102, the second fixing groove 302, the second adjusting tube 103, and the first fixing groove 301 are set to facilitate precise adjustment of the height and angle of the tabletop 104. The positioning is based on the groove spacing, such as raising the height by 2cm per grid, which is suitable for quantitative research on the influence of the initial height on the parabola.

[0046] Preferably, the ball 308 passes through the screw 303, and the ball 308 and the screw 303 are slidably connected.

[0047] As a further implementation of the above technical solution: the ball 308 can flexibly extend and retract within the screw 303, and in conjunction with the fixing spring 307, it can adapt to the gap between the fixing slot or the component, ensuring that it is tightened when fixed and smoothly reset when released, improving the ease of operation of the fixing component 3. The sliding connection avoids the ball 308 getting stuck, ensuring the reliability of the fixing component 3 for repeated use and extending the service life of the teaching aid. When fixed: the fixing spring 307 pushes the ball 308 through the screw 303 to extend and tighten the fixing slot or the component to be fixed. When released: the component squeezes the ball 308, the ball 308 compresses the fixing spring 307, slides back to the inside of the screw 303, releases the tightening state, and achieves flexible sliding reset.

[0048] Working principle:

[0049] When the teacher explains to the students, a ball 308 covered in paint can be placed from the tube on the table 104. The ball 308 falls into the dispenser due to gravity. Force is applied through the groove 305 of the rotating block 304, causing the screw 303 to rotate. During the movement of the screw 303, the locking block 306 assists in positioning, and the fixing spring 307 pushes the ball 308 to release the fixing component. At this time, the right end of the table 104 moves up and down, and the second adjusting tube 103 moves along the line in the first adjusting tube 102. During this movement, the second adjusting tube is supported by the support frame 1. When the angle changes in step 05, it is easier to align the second adjusting tube 103 and the first adjusting tube 102 in a straight line. At this time, the positions of the first fixing groove 301 and the second fixing groove 302 can be observed until the two grooves are aligned and overlapped. Then, the fixing component 3 can be installed by repeating the above steps in reverse. At this time, push the push rod 206 to drive the push tube 207 to compress the elastic spring 208. After releasing, the spring returns to its original position. Push the push tube 207 to push the projectile out of the through hole 209 at the right end of the launch box 202 and eject it from the center of the table 104. The sphere 308 covered with paint leaves a mark, and the parabolic trajectory can be observed.

[0050] Finally, it should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A teaching aid for physics parabolas, including a workbench assembly (1), characterized in that: The upper left rear side of the workbench assembly (1) is fixedly connected to the launching assembly (2), the inner side of the workbench assembly (1) is embedded with the fixing assembly (3), and the launching assembly (2) penetrates through the workbench assembly (1).

2. The physics parabola teaching aid according to claim 1, characterized in that: The workbench assembly (1) includes a base (101), and a first adjusting tube (102) is fixedly connected to the four corners of the upper end of the base (101). A second adjusting tube (103) is slidably connected to the inner side of the first adjusting tube (102). A desktop (104) is provided at the upper end of the second adjusting tube (103). A support frame (105) is slidably connected to the outer side of the second adjusting tube (103) located on the right end. Fixing frames (106) are sleeved on both the front and rear ends of the outer side of the second adjusting tube (103) located on the left end.

3. The physics parabola teaching aid according to claim 1, characterized in that: The launching assembly (2) includes a reinforcing box (201), a launching box (202) is fixedly connected to the inner side of the reinforcing box (201), a cover (203) is snapped onto the upper end of the launching box (202), a mounting plate (204) is fixedly connected to the left inner side of the launching box (202), a launching tube (205) is fixedly connected to the right end of the mounting plate (204), a push rod (206) is slidably connected to the upper end of the launching tube (205), a push tube (207) is slidably connected to the inner side of the launching tube (205), and an elastic spring (208) is fixedly connected to the left end of the push tube (207).

4. The physics parabola teaching aid according to claim 1, characterized in that: The fixing component (3) includes a screw (303), a rotating block (304) is fixedly connected to the right end of the screw (303), a groove (305) is provided on the right end of the rotating block (304), a locking block (306) is embedded in the outer left end of the screw (303), a fixing spring (307) is embedded in the inner side of the screw (303), and a ball (308) is fixedly connected to the left end of the fixing spring (307).

5. The physics parabola teaching aid according to claim 2, characterized in that: The upper end of the support frame (105) is fixedly connected to the lower end of the desktop (104), and the upper end of the fixing frame (106) is fixedly connected to the desktop (104) by screws.

6. The physics parabola teaching aid according to claim 2, characterized in that: The second adjustment tube (103) passes through the first adjustment tube (102), and the upper outer end of the second adjustment tube (103) is slidably connected to the tabletop (104).

7. The teaching aid for teaching physics parabolas according to claim 3, characterized in that: The push rod (206) passes through the launch tube (205), the launch box (202) and the reinforcement box (201), and the push rod (206) is slidably connected to the launch box (202) and the reinforcement box (201).

8. The physics parabola teaching aid according to claim 3, characterized in that: The push tube (207) passes through the launch tube (205), and the left end of the elastic spring (208) is fixedly connected to the inner left end of the launch box (202). The right end of the launch box (202) has a through hole (209).

9. The physics parabola teaching aid according to claim 2, characterized in that: The first regulating tube (102) has a second fixing groove (302) with equal gaps on its outer side, and the second regulating tube (103) has a first fixing groove (301) with equal gaps on its outer right end, and the second fixing groove (302) and the first fixing groove (301) are arranged to overlap.

10. The physics parabola teaching aid according to claim 4, characterized in that: The ball (308) passes through the screw (303), and the ball (308) and the screw (303) are slidably connected.

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