Scientific experiment model of Newton pendulum

Abstract

The utility model relates to the technical field of experimental models, in particular to a scientific experimental model of a Newton pendulum, which comprises bottom plates and a limiting plate, the limiting plate is fixedly connected between the two bottom plates through rivets, two metal rods are slidably connected between the two bottom plates, a plurality of stay wires are fixedly connected between the two metal rods, and the stay wires are fixedly connected between the two metal rods. A pull wire is arranged on the base plate, an impact ball is slidably connected to the pull wire, a ball is fixedly connected to the pull wire, a square block is installed between the two base plates, adjusting components are installed at the four corners of the square block, each adjusting component comprises a sleeve, a lead screw and a suction cup, the sleeves are fixedly connected to the square block, and the lead screws are fixedly connected to the sleeves. When the air bag is stretched, air in the suction cup can be extracted, negative pressure is formed in the suction cup, the suction cup can be adsorbed to a table top, the effect of fixing the bottom plate and the whole device is achieved, and the device is prevented from deviating in the experiment process.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental models, in particular to a scientific experimental model of a Newton's pendulum. Background Art

[0002] Newton's cradle is a tabletop demonstration device invented in the 1860s. Five spheres of equal mass are fixed by ropes and arranged closely together. It is also called: Newton's cradle ball, momentum conservation pendulum ball, perpetual motion ball, physics billiards, bumper balls, etc. Newton's cradle was first proposed by French physicist Edan Mariotte in 1676. When the ball on the far right is swung and collides with the other four closely arranged balls when swinging back, the ball on the far left will be ejected, and only the ball on the far left will be ejected.

[0003] Most of the Newton's cradles in the prior art are welded or fixedly installed and cannot be disassembled and assembled. At the same time, the Newton's cradle does not have a horizontal adjustment structure. When the table top on which the Newton's cradle is placed is not in a horizontal state, it will also affect the experimental data of measuring the Newton's cradle. Utility Model Content

[0004] The purpose of the utility model is to solve the following shortcomings in the prior art: most of the Newton's pendulums in the prior art are welded or fixedly installed and cannot be disassembled and assembled. At the same time, the Newton's pendulum does not have a horizontal adjustment structure. When the desktop on which the Newton's pendulum is placed is not in a horizontal state, it will also affect the experimental data of measuring the Newton's pendulum. A scientific experimental model of a Newton's pendulum is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A scientific experiment model of a Newton's cradle comprises a bottom plate and a limit plate, wherein the limit plate is fixedly connected between the two bottom plates by rivets;

[0007] Two metal rods are slidably connected between the two bottom plates, a plurality of pull wires are fixedly connected between the two metal rods, an impact ball is slidably connected to the pull wires, and a round ball is fixedly connected to the pull wires. A square block is installed between the two bottom plates, and adjustment components are installed at the four corners of the square block. The adjustment components include a sleeve, a screw rod, and a suction cup. The sleeve is fixedly connected to the square block, the screw rod is threadedly connected to the bottom wall of the sleeve, and the suction cup is rotatably connected to the lower end of the screw rod.

[0008] Preferably, the adjusting component further comprises a horizontal ball, a groove is formed on the square block, and the horizontal ball is slidably connected in the groove.

[0009] Preferably, a turntable is threadedly connected to the upper end of the sleeve, and a tooth pattern is formed on the outer surface of the upper end of the turntable.

[0010] Preferably, an airbag is fixedly connected to the bottom wall of the sleeve, the upper end of the airbag is rotatably connected to the turntable, and the airbag is connected to the suction cup through an air pipe.

[0011] Preferably, a rubber ring is sleeved on the outer surface of the metal rod, and a connecting plate is fixedly connected to the outer surface of the rubber ring.

[0012] Preferably, the bottom plate is provided with a slide groove, and the square block is slidably connected in the slide groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The bottom plate is used to support the metal rod and the impact ball. A pull wire is passed through the impact ball and fixed to the round ball. The round ball is used to limit the impact ball. The two ends of the pull wire are respectively fixed on the metal rod to complete the assembly effect of the Newton's cradle.

[0015] The horizontal ball is located on the left side of the groove, with the joint of the two bottom plates as the center line, which means that the left side of the entire device is lower than the right side. At this time, turn the two screws on the left side, and the screws push the suction cup to contact the desktop and support the left side of the device, so that the entire device is in a horizontal state. When the entire device is in a horizontal state, it is convenient to measure the experimental data.

[0016] When the level of the equipment is adjusted, the turntable rotates and moves upward to stretch the airbag. When the airbag is stretched, the gas in the suction cup can be extracted, so that the suction cup has a negative pressure and can be adsorbed on the table, thereby fixing the bottom plate and the entire device and preventing the device from shifting during the experiment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A front structural schematic diagram of a scientific experimental model of a Newton's cradle proposed by the utility model;

[0018] Figure 2 A schematic diagram of a square block structure of a scientific experimental model of a Newton's cradle proposed by the utility model;

[0019] Figure 3 A schematic diagram of the suction cup structure of a scientific experimental model of a Newton's cradle proposed by the utility model;

[0020] Figure 4 The utility model provides a schematic diagram of the air bag structure of a scientific experimental model of a Newton's cradle.

[0021] In the figure: 1 bottom plate, 2 rubber ring, 3 connecting plate, 4 air bag, 5 limit plate, 6 square block, 7 round ball, 8 impact ball, 9 metal rod, 10 pull wire, 11 screw rod, 12 sleeve, 13 horizontal ball, 14 air pipe, 15 suction cup, 16 turntable. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] The terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present utility model are only for the convenience of description and are not used to limit the scope of application of the present utility model. Changes or adjustments in their relative relationships shall be regarded as the scope of application of the present utility model without substantially changing the technical content.

[0024] Reference Figure 1-Figure 4 A scientific experimental model of a Newton's cradle includes a base plate 1 and a limiting plate 5. The limiting plate 5 is fixedly connected between the two base plates 1 by rivets, and the limiting plate 5 is used to fix the two base plates 1.

[0025] Two metal rods 9 are slidably connected between the two bottom plates 1, and a rubber ring 2 is sleeved on the outer surface of the metal rod 9. A connecting plate 3 is fixedly connected to the outer surface of the rubber ring 2. A plurality of pull wires 10 are fixedly connected between the two metal rods 9, and an impact ball 8 is slidably connected to the pull wire 10. A round ball 7 is fixedly connected to the pull wire 10, and the round ball 7 is used to limit the impact ball 8 to prevent the impact ball 8 from detaching from the pull wire 10. A square block 6 is installed between the two bottom plates 1, and a slide groove is opened on the bottom plate 1, and the square block 6 is slidably connected in the slide groove.

[0026] Adjustment components are installed at the four corners of the square block 6, and the adjustment components include a sleeve 12, a screw rod 11, and a suction cup 15. The sleeve 12 is fixedly connected to the square block 6, and the screw rod 11 is threadedly connected to the bottom wall of the sleeve 12. A turntable 16 is threadedly connected to the upper end of the sleeve 12. When the turntable 16 rotates, it can move upward, and when the turntable 16 rotates in the opposite direction, it can move downward in the sleeve 12. The outer surface of the upper end of the turntable 16 is provided with tooth patterns, which is convenient for rotating the turntable 16 by hand during the experiment to increase the friction of the turntable 16. force, an airbag 4 is fixedly connected to the bottom wall of the sleeve 12, the upper end of the airbag 4 is rotatably connected to the turntable 16, the airbag 4 is communicated with the suction cup 15 through the air pipe 14, the suction cup 15 is rotatably connected to the lower end of the screw rod 11, when the bottom plate 1 is placed on a smooth table top, multiple suction cups 15 are all in contact with the table top, the adjusting component also includes a horizontal ball 13, a groove is provided on the square block 6, the horizontal ball 13 is slidably connected in the groove, the horizontal ball 13 can only move horizontally in the groove, and will not detach from the groove.

[0027] In the utility model, when in use, the two base plates 1 are fitted together, the two limit plates 5 are placed on the upper surfaces of the two base plates 1, and the limit plates 5 are fixed to the base plates 1 by rivets to achieve the effect of fixing the two base plates 1, and the two metal rods 9 are limited by the connecting plate 3, and then the metal rods 9 are inserted into the base plates 1, and the base plates 1 are used to support the metal rods 9 and the impact ball 8, and the pull wire 10 is passed through the impact ball 8 and fixed to the round ball 7, the round ball 7 is used to limit the impact ball 8, and the two ends of the pull wire 10 are respectively fixed on the metal rod 9 to complete the assembly effect of the Newton's cradle.

[0028] Then place the square block 6 between the two bottom plates 1, and use a heated rubber strip to drip between the square block 6 and the bottom plate 1 for fixation, and observe the horizontal ball 13 to see if the horizontal ball 13 is in the middle of the groove. If the horizontal ball 13 is on the left side of the groove, with the joint of the two bottom plates 1 as the center line, it means that the left side of the entire device is lower than the right side. At this time, rotate the two screw rods 11 on the left side. The screw rod 11 pushes the suction cup 15 to contact the desktop and supports the left side of the device, so that the entire device is in a horizontal state. After the entire state is in a horizontal state, it is convenient to measure the experimental data. If the right side is lower than the left side, rotate the screw rod 11 on the right side. The principle is the same as above.

[0029] When the level of the equipment is adjusted, the turntable 16 is rotated respectively. The turntable 16 moves upward and stretches the airbag 4 while rotating. Since the airbag 4 is connected with the suction cup 15 through the air pipe 14, the gas in the suction cup 15 can be extracted when the airbag 4 is stretched, so that the suction cup 15 has a negative pressure and can be adsorbed on the table, thereby fixing the bottom plate 1 and the entire device to avoid the device from shifting during the experiment.

[0030] In the present invention, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A scientific experimental model of a Newton's cradle, comprising a base plate (1) and a limit plate (5), characterized in that: The limiting plate (5) is fixedly connected between the two bottom plates (1) by means of rivets; Two metal rods (9) are slidably connected between the two bottom plates (1), a plurality of pull wires (10) are fixedly connected between the two metal rods (9), an impact ball (8) is slidably connected to the pull wires (10), and a round ball (7) is fixedly connected to the pull wires (10). A square block (6) is installed between the two bottom plates (1), and adjustment components are installed at the four corners of the square block (6). The adjustment components include a sleeve (12), a screw rod (11), and a suction cup (15). The sleeve (12) is fixedly connected to the square block (6), the screw rod (11) is threadedly connected to the bottom wall of the sleeve (12), and the suction cup (15) is rotatably connected to the lower end of the screw rod (11).

2. A scientific experimental model of Newton's cradle according to claim 1, characterized in that The adjusting component also includes a horizontal ball (13), and a groove is formed on the square block (6), and the horizontal ball (13) is slidably connected in the groove.

3. A scientific experimental model of Newton's cradle according to claim 1, characterized in that: The upper end of the sleeve (12) is threadedly connected to a rotating disk (16), and the outer surface of the upper end of the rotating disk (16) is provided with tooth patterns.

4. A scientific experimental model of Newton's cradle according to claim 3, characterized in that: An air bag (4) is fixedly connected to the bottom wall of the sleeve (12); the upper end of the air bag (4) is rotatably connected to the turntable (16); and the air bag (4) and the suction cup (15) are connected via an air pipe (14).

5. The scientific experimental model of Newton's cradle according to claim 1, characterized in that: The outer surface of the metal rod (9) is sleeved with a rubber ring (2), and the outer surface of the rubber ring (2) is fixedly connected with a connecting plate (3).

6. A scientific experimental model of Newton's cradle according to claim 1, characterized in that: The bottom plate (1) is provided with a sliding groove, and the square block (6) is slidably connected in the sliding groove.

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