CN213396929U

CN213396929U - Newton's pendulum card angle square for experiments

Info

Publication number: CN213396929U
Application number: CN202022323338.4U
Authority: CN
Inventors: 祝博阳
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-06-08
Anticipated expiration: 2030-10-19

Abstract

The utility model discloses a newton pendulum angle square for experiments, locating plate including a level is placed, the bottom of locating plate has set firmly the semicircle board, the axle center department of semicircle board has set firmly a disc, the first one of disc scarf joint be in the middle part of locating plate, rotatable revolving rack is installed to the centre of a circle department of disc, a top fixedly connected with turning handle of revolving rack, the middle part of revolving rack is equipped with a pendulum rope, the bottom of pendulum rope is equipped with a metal pendulum ball. The utility model relates to a physics experimental device technical field, this newton pendulum card angle square for experiments, through improving on the basis at present experimental mechanism, adopt slewing mechanism to replace the mode of traditional manual control pendulum ball position to the position of pendulum ball is confirmed to the pivoted mode, and through the initial position of the fixed pendulum ball of positioning mechanism from the area, so, more accurate definite the angle of pendulum ball, the arbitrariness is little, the experimental result is more accurate, greatly reduced the error.

Description

Newton's pendulum card angle square for experiments

Technical Field

The utility model relates to a physics experiment equipment technical field specifically is a newton pendulum card angle square for experiments.

Background

When a Newton pendulum experiment is carried out, the initial pendulum ball pulling-up angle is an important analysis factor, and the pendulum ball attenuation is observed through different pendulum angles.

When doing above-mentioned experiment at present, generally rely on the manual work to pull up certain angle with pendulum ball, then let out pendulum ball and let it swing, rely on the manual work to confirm the pivot angle, the randomness is big, and the angle is inaccurate, easily causes great error to the experiment.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a newton pendulum card angle square for experiments has solved the great problem of current newton pendulum experimental apparatus error.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a Newton's pendulum angle square for experiments, includes the locating plate that a level was placed, the bottom of locating plate has set firmly the semicircle board, the axle center department of semicircle board has set firmly a disc, the first half scarf joint of disc is in the middle part of locating plate, the centre of a circle department of disc installs rotatable revolving rack, the top fixedly connected with turning handle of revolving rack.

The middle part of the rotating frame is tied with a swinging rope, the bottom of the swinging rope is tied with a metal swinging ball, the bottom of the rotating frame is fixedly connected with a clamping sleeve, and the inner side wall of the clamping sleeve is provided with a magnet sleeve.

One side that the revolving rack is close to the semicircle board is rabbeted and is had the iron core piece, the revolving rack is kept away from one side of semicircle board is rabbeted and is had the battery case, the output of battery case is connected with magnet cover and iron core piece respectively through a wire, a lateral wall of battery case is provided with first switch and second switch respectively.

The disc is etched with a first scale mark, the top of the rotating frame is fixedly connected with a scale needle, and the rotation center of the scale needle coincides with the circle center of the disc.

An arc-shaped iron sheet is embedded in the semicircular plate, the iron core block is in contact with the arc-shaped iron sheet, and second scale marks are etched on the semicircular plate.

Preferably, the rotating frame is provided with an anti-tripping device, and the anti-tripping device is clamped on the outer surface of the lead.

Preferably, the rotating frame is provided with a limiting piece which is respectively arranged at two sides of the swinging rope.

Preferably, the rotating frame is a transparent frame body.

Preferably, the magnet sleeve is groove-shaped, the middle part of the magnet sleeve is a circular clamping groove, and the radius of the clamping groove is equal to that of the metal pendulum ball.

(III) advantageous effects

The utility model provides a newton pendulum card angle square for experiments. The method has the following beneficial effects:

this newton pendulum angle square for experiments through improving on current experimental mechanism's basis, adopts slewing mechanism to replace the mode of traditional manual control pendulum ball position to the position of pendulum ball is confirmed to the pivoted mode, and through the initial position of the fixed pendulum ball of positioning mechanism from the area, so, more accurate definite the angle of pendulum ball, the arbitrariness is little, and the experimental result is more accurate, greatly reduced the error.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a side view of the structure of the revolving rack of the present invention;

fig. 3 is an enlarged view of a partial structure of the present invention.

In the figure: 1. positioning a plate; 2. a semicircular plate; 3. a disc; 4. rotating the frame; 5. a handle is rotated; 6. swinging a rope; 7. a metal pendulum ball; 8. a card sleeve; 9. a magnet sleeve; 10. a core block; 11. a battery case; 12. a wire; 13. a first switch; 14. a second switch; 15. a first scale mark; 16. a scale needle; 17. an arc-shaped iron sheet; 18. a second scale mark; 19. preventing tripping; 20. a limiting sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-2, the utility model provides a technical solution: the utility model provides a newton's pendulum angle square for experiments, includes that a level is placed locating plate 1, and the bottom of locating plate 1 has set firmly semicircle board 2, and the axle center department of semicircle board 2 has set firmly a disc 3, and the first half of disc 3 splices in the middle part of locating plate 1, and rotatable revolving rack 4 is installed to the centre of a circle department of disc 3, and revolving rack 4 is transparent support body, conveniently observes the angle, and a top fixedly connected with turning handle 5 of revolving rack 4.

As shown in fig. 2, the middle part of the rotating frame 4 is provided with a swing rope 6, the rotating frame 4 is provided with a limiting piece 20, the limiting piece 20 is respectively arranged at two sides of the swing rope 6, the limiting piece 20 is arranged to limit the front and back swing range of the swing rope 6, the test error is reduced, the bottom of the swing rope 6 is provided with a metal swing ball 7, the bottom of the rotating frame 4 is fixedly connected with a clamping sleeve 8, a magnet sleeve 9 is installed on the inner side wall of the clamping sleeve 8, the magnet sleeve 9 is groove-shaped, the middle part of the magnet sleeve is a circular clamping groove, and the radius of the clamping groove is equal to the radius of the metal swing ball 7.

As shown in fig. 1, an iron core block 10 is embedded in one side of the rotating frame 4 close to the semicircular plate 2, a battery box 11 is embedded in one side of the rotating frame 4 far from the semicircular plate 2, an output end of the battery box 11 is respectively connected with the magnet sleeve 9 and the iron core block 10 through a lead 12, an anti-tripping buckle 19 is arranged on the rotating frame 4, the anti-tripping buckle 19 is clamped on the outer surface of the lead 12, the anti-tripping buckle 19 is arranged, the lead 12 can be prevented from falling off, and a first switch 13 and a second switch 14 are respectively arranged on one side wall of the battery box 11.

As shown in fig. 3, a first scale mark 15 is etched on the disc 3, a scale needle 16 is fixedly connected to the top of the rotating frame 4, the scale needle 16 rotates synchronously with the rotating frame 4, and the rotation center of the scale needle 16 coincides with the center of the disc 3.

As shown in fig. 1 and 3, an arc-shaped iron sheet 17 is embedded in the semicircular plate 2, the core block 10 and the arc-shaped iron sheet 17 are in contact with each other, a second scale mark 18 is etched on the semicircular plate 2, and the second scale mark 18 is arranged to assist in identifying the angle.

And those not described in detail in this specification are well within the skill of those in the art.

When the metal swinging ball fixing device is used, firstly, the metal swinging ball 7 is placed in the magnet sleeve 9 on the inner side of the clamping sleeve 8 to be clamped, then the first switch 13 is opened, the magnet sleeve 9 is electrified through the battery in the battery box 11, so that the magnet sleeve 9 is magnetic (an electromagnet principle in physics is applied), and the magnetic magnet sleeve 9 can adsorb the metal swinging ball 7 to prevent the metal swinging ball from falling off.

Then the rotating handle 5 is rotated to drive the rotating frame 4 to rotate, so that the metal swinging ball 7 is driven to rotate before, the rotating angle is constantly concerned through the scale needle 16 in the rotating process, when the rotating angle reaches the current angle, the second switch 14 is opened to enable the iron core block 10 to be electrified to generate magnetism, so that the iron core block 10 is adsorbed on the arc-shaped iron sheet 17, the angle position of the rotating frame 4 is fixed, the rotating frame 4 is prevented from generating errors due to random movement, then the first switch 13 is closed to enable the magnet sleeve 9 to be powered off and lose magnetism, so that the metal swinging ball 7 is enabled to lose constraint and automatically swing, the swing test is completed, and the test errors are reduced.

In conclusion, the Newton's pendulum angle square for experiments is improved on the basis of the existing experiment mechanism, the rotation mechanism is adopted to replace the traditional mode of manually controlling the position of the pendulum ball, the position of the pendulum ball is determined in a rotation mode, and the initial position of the pendulum ball is fixed through the positioning mechanism, so that the angle of the pendulum ball is determined more accurately, the randomness is small, the experiment result is more accurate, and the error is greatly reduced.

It should be noted that the electrical components shown in this document are all electrically connected to an external master controller, and the master controller may be a conventional known device for controlling a computer, and the control principle, internal structure, control switching manner, and the like of the conventional known device are conventional means in the prior art, and are directly referred to herein without further description. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a newton's pendulum card angle square for experiments which characterized in that: the positioning device comprises a positioning plate (1) which is horizontally placed, wherein a semicircular plate (2) is fixedly arranged at the bottom of the positioning plate (1), a disc (3) is fixedly arranged at the axis of the semicircular plate (2), the upper half part of the disc (3) is embedded in the middle of the positioning plate (1), a rotatable rotating frame (4) is arranged at the circle center of the disc (3), and a rotating handle (5) is fixedly connected to the top of the rotating frame (4); a swinging rope (6) is tied in the middle of the rotating frame (4), a metal swinging ball (7) is tied at the bottom of the swinging rope (6), a clamping sleeve (8) is fixedly connected at the bottom of the rotating frame (4), and a magnet sleeve (9) is installed on the inner side wall of the clamping sleeve (8); an iron core block (10) is embedded in one side, close to the semicircular plate (2), of the rotating frame (4), a battery box (11) is embedded in one side, far away from the semicircular plate (2), of the rotating frame (4), the output end of the battery box (11) is connected with the magnet sleeve (9) and the iron core block (10) through a lead (12), and a first switch (13) and a second switch (14) are arranged on one side wall of the battery box (11) respectively; a first scale mark (15) is etched on the disc (3), a scale needle (16) is fixedly connected to the top of the rotating frame (4), and the rotation center of the scale needle (16) is superposed with the circle center of the disc (3); an arc-shaped iron sheet (17) is embedded in the semicircular plate (2), the iron core block (10) is in mutual contact with the arc-shaped iron sheet (17), and second scale marks (18) are etched on the semicircular plate (2).

2. The experimental Newton's pendulum calliper of claim 1, wherein: the rotating frame (4) is provided with an anti-tripping device (19), and the anti-tripping device (19) is clamped on the outer surface of the lead (12).

3. The experimental Newton's pendulum calliper of claim 1, wherein: the rotating frame (4) is provided with a limiting piece (20), and the limiting pieces (20) are respectively arranged on two sides of the swinging rope (6).

4. The experimental Newton's pendulum calliper of claim 1, wherein: the rotating frame (4) is a transparent frame body.

5. The experimental Newton's pendulum calliper of claim 1, wherein: the magnet sleeve (9) is groove-shaped, the middle part of the magnet sleeve is a circular clamping groove, and the radius of the clamping groove is equal to that of the metal swinging ball (7).