CN218848931U

CN218848931U - Double-pendulum experimental device

Info

Publication number: CN218848931U
Application number: CN202222825034.7U
Authority: CN
Inventors: 马志花
Original assignee: Foshan tongji primary school
Current assignee: Foshan tongji primary school
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-04-11
Anticipated expiration: 2032-10-25

Abstract

The utility model provides a double pendulum experimental device, which comprises a base, a vertical rod and a hanger, wherein the hanger is arranged at the top of the vertical rod; one side of the upright rod, which is close to the base, is connected with a guide rail A through an adjusting knob, an L-shaped mounting arm is connected onto the guide rail in a sliding manner, one side of the L-shaped mounting arm, which is far away from the guide rail A, is sequentially provided with a guide rail B and a first electromagnet seat, the guide rail B and the guide rail A form a vertical relation, and a second electromagnet seat is embedded on the guide rail B; electromagnets are mounted on the first electromagnet seat and the second electromagnet seat; a swing rope A corresponding to the first electromagnet seat and a swing rope B corresponding to the second electromagnet seat are hung on the hanging frame; a swinging rope adjusting knob is arranged at the upper part of the upright stanchion and close to the hanger, one end of a swinging rope B is connected with a second pendulum bob, and the other end of the swinging rope B bypasses the hanger and is connected with the swinging rope adjusting knob; one end of the swing rope A is wound on the hanging bracket, and the other end of the swing rope A is connected with a first pendulum bob. The experimental phenomenon is visual and clear, the operation is simple and convenient, and the experimental error is reduced.

Description

Double-pendulum experimental device

Technical Field

The utility model relates to an experimental apparatus technical field especially relates to a double pendulum experimental apparatus.

Background

The general experimental exploration device for the pendulum only adopts the simple pendulum to explore the experiment, and the experimental phenomenon can only be quantitatively analyzed. The Chinese authorized bulletin number is CN211149865U, the authorized bulletin day is 31.07.2020, and discloses a simple pendulum experimental instrument which comprises a base and foot screws, wherein the upper part of the base is provided with a vertical rod, the upper end of the vertical rod is provided with a hanging bracket, the hanging bracket is provided with the hanging bracket screws, the upper end of a cycloid is arranged on the hanging bracket, the lower end of the cycloid is connected with a pendulum ball, a support is adjustably arranged on the vertical rod through the support screws, the support is sleeved with an electromagnet movable support, the electromagnet movable support is provided with an electromagnet, and the electromagnet is electrically connected with a power supply. The utility model overcomes simple pendulum experiment appearance among the prior art takes place the defect of cone pendulum in the experimentation easily, has improved the experiment precision. The utility model discloses can be used to the simple pendulum experiment in the physics experiment of university. The defects of the technology are as follows: the realization phenomenon is not intuitive and clear, and because the thinking of the pupils is mainly characterized by specific image thinking, qualitative and quantitative exploration can be effectively combined only by intuition and clearness. In view of such circumstances, improvement is urgently required.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a double pendulum experimental apparatus makes experimental phenomenon more directly perceived clear, will be qualitative and quantitative explore effectual combination, more have convincing, and is easy and simple to handle, reduces experimental error.

The utility model provides a double pendulum experimental device, which comprises a base, a vertical rod and a hanging bracket, wherein the vertical rod is arranged on the base, and the hanging bracket is arranged at the top of the vertical rod; one side, close to the base, of the upright rod is connected with a guide rail A through an adjusting knob, an L-shaped installation arm is connected onto the guide rail in a sliding mode, one side, far away from the guide rail A, of the L-shaped installation arm is sequentially provided with a guide rail B and a first electromagnet seat, the guide rail B and the guide rail A form a vertical relation, and a second electromagnet seat is arranged on the guide rail B in an embedded mode; electromagnets are mounted on the first electromagnet seat and the second electromagnet seat; a swing rope A corresponding to the first electromagnet seat and a swing rope B corresponding to the second electromagnet seat are hung on the hanging frame; a swinging rope adjusting knob is arranged at the upper part of the upright rod and close to the hanger, one end of the swinging rope B is connected with a second pendulum bob, and the other end of the swinging rope B bypasses the hanger and is connected with the swinging rope adjusting knob; one end of the swinging rope A is wound on the hanging bracket, and the other end of the swinging rope A is connected with a first pendulum bob; and a protractor is arranged on one side of the hanger, which is close to the upright rod.

Preferably, the control circuit and the power supply box are respectively installed on the upper surface of the base and on two opposite sides of the upright rod, and the power supply box is provided with a switch button; and the electromagnets and the power supply box are connected with a control circuit.

Preferably, the four sides of the lower surface of the base are uniformly provided with adjusting foundation bolts.

Preferably, a level gauge is mounted on the upper surface of the base.

Preferably, the first pendulum and the second pendulum are both hollow transparent plastic circular pendulums, and both the first pendulum and the second pendulum are composed of two semi-annular shells hinged with each other; the outer surfaces of the first pendulum bob and the second pendulum bob are provided with hanging holes.

The utility model has the advantages that:

1. the double pendulum test can be realized, so that the experimental phenomenon is more visual and clear, and qualitative and quantitative researches are effectively combined, so that the test is more convincing; the matching structure of the guide rail A and the guide rail B is arranged, so that the positions of the first electromagnet seat and the second electromagnet seat in the X axial direction and the position of the second electromagnet seat in the Y axial direction are convenient to adjust; the double pendulums can fall down from a certain height simultaneously by adopting the electromagnet, the operation is simple and convenient, and the experimental error is reduced; the relative height of the second pendulum bob is convenient to adjust by arranging the swing rope adjusting knob;

2. the foundation bolts are adjusted, so that the relative height of the base can be conveniently adjusted, and the base can be kept in a horizontal state by combining a level gauge, so that the testing accuracy is ensured;

3. by arranging the protractor, the amplitude of oscillation can be visually checked, and the experimental phenomenon is further more visual and clear.

Drawings

Fig. 1 is a perspective view of the first embodiment.

Fig. 2 is a structural view of the first pendulum.

Fig. 3 is a perspective view of the second embodiment.

The reference signs are: the device comprises a base 10, an adjusting foundation bolt 11, a control circuit 12, a power supply box 13, a switch button 14, an adjusting knob 15, an electromagnet 16, a second pendulum bob 17, a vertical rod 18, a pendulum rope adjusting knob 19, a protractor 20, a hanger 21, a pendulum rope B22, a guide rail A23, a second electromagnet seat 24, a guide rail B25, a first electromagnet seat 26, an L-shaped mounting arm 27, a first pendulum bob 28, a pendulum rope A29, an iron ball 30, a hanging hole 31 and a level gauge 32.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and the detailed description thereof.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

A first embodiment, please refer to fig. 1-2, the present invention provides a double pendulum experiment apparatus, which comprises a base 10, a vertical rod 18, and a hanging bracket 21, wherein the vertical rod 18 is installed on the base 10, and the hanging bracket 21 is installed on the top of the vertical rod 18.

One side of the upright rod 18 close to the base 10 is connected with a guide rail A23 through an adjusting knob 15, the guide rail A23 is connected with an L-shaped mounting arm 27 in a sliding manner, one side of the L-shaped mounting arm 27 far away from the guide rail A23 is sequentially provided with a guide rail B25 and a first electromagnet seat 26, the guide rail B25 and the guide rail A23 form a vertical relation, and a second electromagnet seat 24 is embedded on the guide rail B25; the electromagnets 16 are mounted to the first electromagnet mount 26 and the second electromagnet mount 24.

A swing rope A29 corresponding to the first electromagnet seat 26 and a swing rope B22 corresponding to the second electromagnet seat 24 are hung on the hanger 21; a swinging rope adjusting knob 19 is arranged at the upper part of the upright rod 18 close to the hanger 21, one end of a swinging rope B22 is connected with a second pendulum bob 17, and the other end of the swinging rope B22 bypasses the hanger 21 and is connected with the swinging rope adjusting knob 19; one end of the swing rope a29 is wound around the hanger 21, and the other end of the swing rope a29 is connected to the first pendulum 28. The side of the hanger 21 close to the upright rod 18 is provided with the protractor 20, so that the amplitude of oscillation can be visually checked, and the experimental phenomenon is further more visual and clear. When the relative height of the second pendulum bob 17 needs to be adjusted, the relative height of the pendulum rope adjusting knob 19 on the vertical rod 18 can be adjusted, so that the adjustment is simple, convenient and quick.

A control circuit 12 and a power supply box 13 are respectively arranged on the upper surface of the base 10 and on the two opposite sides of the upright rod 18, and a switch button 14 is arranged on the power supply box 13; the two electromagnets 16 and the power supply box 13 are connected with the control circuit 12. During testing, the two electromagnets 16 are controlled by the switch button 14 in a unified mode, the double pendulums can fall down from a certain height at the same time, operation is simple and convenient, and experimental errors are reduced.

The four sides of the lower surface of the base 10 are uniformly provided with adjusting anchor bolts 11, so that the relative height of the base 10 can be adjusted at will.

The first pendulum bob 28 and the second pendulum bob 17 are both arranged as hollow transparent plastic circular pendulum bob, and the first pendulum bob 28 and the second pendulum bob 17 are both composed of two semi-annular shells hinged with each other; the outer surfaces of the first and

second pendulums

28 and 17 are each provided with a hanging hole 31. Through the structural arrangement, when the relative weight of the first pendulum 28 or the second pendulum 17 needs to be changed, the first pendulum 28 or the second pendulum 17 can be opened to correspondingly increase or decrease the iron beads 30, and the operation is simple, convenient and quick.

The embodiment can realize double-pendulum test, so that the experimental phenomenon is more visual and clear, and qualitative and quantitative researches are effectively combined to be more convincing; the matching structure of the guide rail A and the guide rail B is arranged, so that the positions of the first electromagnet seat and the second electromagnet seat in the X axial direction and the position of the second electromagnet seat in the Y axial direction are convenient to adjust; the double pendulums can fall down from a certain height simultaneously by adopting the electromagnet, the operation is simple and convenient, and the experimental error is reduced; through setting up pendulum rope adjust knob, be convenient for adjust the relative height of second pendulum.

Referring to fig. 3, in the second embodiment, a leveling instrument 32 is mounted on the upper surface of the base 10. Through the structural arrangement, the base can be kept in a horizontal state, so that the testing accuracy is ensured.

The above-mentioned embodiments only represent two embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A double pendulum experiment device comprises a base (10), a vertical rod (18) and a hanging bracket (21), wherein the vertical rod (18) is installed on the base (10), and the hanging bracket (21) is installed at the top of the vertical rod (18);

the method is characterized in that: one side, close to the base (10), of the vertical rod (18) is connected with a guide rail A (23) through an adjusting knob (15), the guide rail A (23) is connected with an L-shaped mounting arm (27) in a sliding mode, one side, far away from the guide rail A (23), of the L-shaped mounting arm (27) is sequentially provided with a guide rail B (25) and a first electromagnet seat (26), the guide rail B (25) and the guide rail A (23) form a vertical relation, and a second electromagnet seat (24) is arranged on the guide rail B (25) in a embedded mode; electromagnets (16) are mounted on the first electromagnet seat (26) and the second electromagnet seat (24);

a swing rope A (29) corresponding to the first electromagnet seat (26) and a swing rope B (22) corresponding to the second electromagnet seat (24) are hung on the hanging bracket (21); a swinging rope adjusting knob (19) is arranged at the upper part of the upright rod (18) close to the hanger (21), one end of the swinging rope B (22) is connected with a second pendulum bob (17), and the other end of the swinging rope B (22) bypasses the hanger (21) and is connected with the swinging rope adjusting knob (19); one end of the swing rope A (29) is wound on the hanger (21), and the other end of the swing rope A (29) is connected with a first pendulum bob (28); and a protractor (20) is arranged on one side of the hanger (21) close to the upright rod (18).

2. The double pendulum experimental apparatus according to claim 1, wherein: a control circuit (12) and a power supply box (13) are respectively installed on the upper surface of the base (10) and on the two opposite sides of the upright rod (18), and a switch button (14) is arranged on the power supply box (13); the two electromagnets (16) and the power supply box (13) are connected with the control circuit (12).

3. The double pendulum experimental apparatus according to claim 1, wherein: and adjusting foundation bolts (11) are uniformly distributed on four sides of the lower surface of the base (10).

4. The double pendulum experimental apparatus according to claim 3, wherein: and a level gauge (32) is arranged on the upper surface of the base (10).

5. The double pendulum experimental apparatus according to any one of claims 1 to 4, wherein: the first pendulum (28) and the second pendulum (17) are both arranged into hollow transparent plastic circular pendulums, and the first pendulum (28) and the second pendulum (17) are both composed of two semi-annular shells hinged with each other; the outer surfaces of the first pendulum (28) and the second pendulum (17) are provided with hanging holes (31).