CN210896115U - Rotary energy conservation experiment demonstration device - Google Patents
Rotary energy conservation experiment demonstration device Download PDFInfo
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- CN210896115U CN210896115U CN201921843243.6U CN201921843243U CN210896115U CN 210896115 U CN210896115 U CN 210896115U CN 201921843243 U CN201921843243 U CN 201921843243U CN 210896115 U CN210896115 U CN 210896115U
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Abstract
The utility model provides a rotation type conservation of energy experiment presentation device. The rotary energy conservation experiment demonstration device comprises a base; a support; a rotating wheel; a motor; a small iron ball; the vacuum mechanism is arranged on the top surface of the base and comprises a vacuum cover, an air inlet pipe, a vacuum pump and an air outlet pipe, the vacuum cover is fixed on the top surface of the base, the air inlet pipe is fixedly connected with the side wall of the vacuum cover, one end of the vacuum pump is arranged at the bottom end of the air inlet pipe, and the other end of the vacuum pump is arranged at the top end of the air outlet pipe; the braking mechanism is arranged on the top surface of the base and comprises a braking cylinder, a first fixing cylinder, a pulley, a spring, a circular ring and a steel wire; a sleeve; a rotation mechanism. The utility model provides a rotation type conservation of energy experiment presentation device has can be under the environment of relative vacuum, advantages such as convenient operation.
Description
Technical Field
The utility model relates to a science and education experiment technical field especially relates to a rotation type conservation of energy experiment presentation device.
Background
The law of conservation of energy is that the total energy of a system can only be changed by as much as the energy transferred into or out of the system. Total energy is the sum of the mechanical energy, thermal energy, and any form of internal energy other than thermal energy of the system, if a system is in an isolated environment, there is no possibility of energy or mass being transferred into or out of the system. For this case, the law of conservation of energy is expressed as: "the total energy of the isolated system remains unchanged. "energy is neither generated nor lost by void, it is only converted from one form to another, or it is transferred from one object to another, while the total amount of energy remains the same, teachers demonstrate the law of conservation of energy to students in laboratories with simple teaching equipment.
However, the traditional teaching equipment can not demonstrate students under the vacuum condition, so that the experiment is influenced by the external environment, if air resistance exists, energy is consumed, the demonstration effect is not ideal, the experimental equipment also needs manual operation of teachers, inconvenience is brought to teaching, and the experimental equipment also can not attract the attention of students in comparison with the traditional teaching equipment.
Therefore, there is a need to provide a new rotary energy conservation experiment demonstration device to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a can be under the environment of relative vacuum convenient operation a rotation type conservation of energy experiment presentation device.
The utility model provides a rotation type conservation of energy experiment presentation device includes: a base; the bracket is arranged on the top surface of the base; the rotating wheel is rotatably connected with one end of the bracket; the motor is arranged on the side wall of the bracket, penetrates through the inside of one end of the bracket, is rotatably connected with the bracket, and is fixedly connected with the center of the rotating wheel; the small iron ball is rotatably connected with the inner side wall of the rotating wheel; the vacuum mechanism is arranged on the top surface of the base and comprises a vacuum cover, an air inlet pipe, a vacuum pump and an air outlet pipe, the vacuum cover is fixed on the top surface of the base, the air inlet pipe is fixedly connected with the side wall of the vacuum cover, one end of the vacuum pump is arranged at the bottom end of the air inlet pipe, and the other end of the vacuum pump is arranged at the top end of the air outlet pipe; the braking mechanism is installed on the top surface of the base and comprises a braking cylinder, a first fixing cylinder, a pulley, a spring, a ring and steel wires, the first fixing cylinder is fixed on the top surface of the base, the braking cylinder is installed inside the first fixing cylinder, the top end of the spring is abutted against the top surface inside the braking cylinder, the bottom end of the spring is abutted against the base, the two rings are respectively fixed at two ends of the side wall of the braking cylinder, the pulley is installed on the inner side wall of the first fixing cylinder, the two steel wires are fixedly connected with the rings, and the steel wires are slidably connected with the pulley; the sleeve is connected with the steel wire in a sliding manner; and the rotating mechanism is arranged in the base.
Preferably, slewing mechanism includes carousel, the solid fixed cylinder of second and round hole, the solid fixed cylinder of second is fixed in inside the base, the carousel with rotate between the solid fixed cylinder of second and be connected, the solid fixed cylinder lateral wall of second is equipped with the round hole, the steel wire runs through the sleeve with the round hole, just the steel wire twine in the carousel lateral wall.
Preferably, a vacuum switch is installed on the top surface of the base, and the vacuum switch is electrically connected with the vacuum pump.
Preferably, a starting switch is installed on the top surface of the base, and the starting switch is electrically connected with the motor.
Preferably, the brake cylinder is located at the bottom end of the rotating wheel, and the height of the brake cylinder is greater than the height from the bottom of the rotating wheel to the top surface of the base.
Preferably, a socket is arranged on the side wall of the base, and the socket is electrically connected with the vacuum switch and the starting switch respectively.
Compared with the prior art, the utility model provides a rotation type conservation of energy experiment presentation device has following beneficial effect:
the utility model provides a rotary energy conservation experiment demonstration device, which can pump out the air in a vacuum cover through a vacuum pump to ensure that the vacuum cover is in a relative vacuum state, the vacuum cover is made of transparent material to ensure that the states of small iron balls and a rotating wheel in the vacuum cover can be seen clearly, the rotating wheel is rotated by starting a switch to control a motor, when the rotating wheel is stopped by the brake cylinder, the small iron ball is enabled to stop rotating because of the rotating wheel, the rotating wheel endows the small iron ball with rightward potential energy, so that the small iron ball moves to the right, and because the small iron ball is influenced by a downward gravity, the small iron ball is kept in a rightward deflection static state, and because the small iron ball is in a relative vacuum state, the phenomenon can be kept for a certain time, so that manual operation of teachers is reduced through switch control, and the experimental phenomenon also attracts the attention of students relatively, and meanwhile, the experimental success rate is greatly increased under the relative vacuum environment.
Drawings
Fig. 1 is a schematic structural diagram of a preferred embodiment of a rotary energy conservation experiment demonstration apparatus provided by the present invention;
FIG. 2 is a schematic view of the braking structure and the rotating structure shown in FIG. 1;
FIG. 3 is an enlarged schematic view of FIG. 1 at A;
fig. 4 is an enlarged schematic view of the point B shown in fig. 1.
Reference numbers in the figures: 1. a base; 2. a support; 3. a rotating wheel; 4. a motor; 5. a small iron ball; 6. a vacuum mechanism; 61. a vacuum hood; 62. an air inlet pipe; 63. a vacuum pump; 64. an air outlet pipe; 7. a brake mechanism; 71. a brake drum; 72. a first fixed cylinder; 73. a pulley; 74. a spring; 75. a circular ring; 76. a steel wire; 8. a rotating mechanism; 81. a turntable; 82. a second fixed cylinder; 83. a circular hole; 9. a sleeve; 10. a vacuum switch; 11. starting a switch; 12. a socket is provided.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of a rotary energy conservation experiment demonstration apparatus provided by the present invention; FIG. 2 is a schematic view of the braking structure and the rotating structure shown in FIG. 1; FIG. 3 is an enlarged schematic view of FIG. 1 at A; fig. 4 is an enlarged schematic view of the point B shown in fig. 1. The rotary energy conservation experiment demonstration device comprises: a base 1; the bracket 2 is arranged on the top surface of the base 1; the rotating wheel 3 is rotatably connected with one end of the bracket 2; the motor 4 is mounted on the side wall of the bracket 2, the motor 4 penetrates through the inside of one end of the bracket 2, the motor 4 is rotatably connected with the bracket 2, and the motor 4 is fixedly connected with the circle center of the rotating wheel 3; the small iron ball 5 is rotatably connected with the inner side wall of the rotating wheel 3; the vacuum mechanism 6 is arranged on the top surface of the base 1, the vacuum mechanism 6 comprises a vacuum cover 61, an air inlet pipe 62, a vacuum pump 63 and an air outlet pipe 64, the vacuum cover 61 is fixed on the top surface of the base 1, the air inlet pipe 62 is fixedly connected with the side wall of the vacuum cover 61, one end of the vacuum pump 63 is arranged at the bottom end of the air inlet pipe 962, the other end of the vacuum pump (63) is arranged at the top end of the air outlet pipe 64, the brake mechanism 7 is arranged on the top surface of the base 1, the brake mechanism 7 comprises a brake cylinder 71, a first fixed cylinder 72, a pulley 73, a spring 74, a ring 75 and a steel wire 76, the first fixed cylinder 72 is fixed on the top surface of the base 1, the brake cylinder 71 is arranged in the first fixed cylinder 72, and the top end of the spring 74 is abutted against the top surface, the bottom end of the spring 74 is abutted against the base 1, the two circular rings 75 are respectively fixed at two ends of the side wall of the brake cylinder 71, the pulley 73 is installed on the inner side wall of the first fixed cylinder 72, the two steel wires 76 are fixedly connected with the circular rings 75, and the steel wires 76 are slidably connected with the pulley 73; the sleeve 9 is connected with the steel wire 76 in a sliding mode; and the rotating mechanism 8 is installed inside the base 1.
Referring to fig. 1, the rotating mechanism 8 includes a rotating disk 81, a second fixed cylinder 82 and a circular hole 83, the second fixed cylinder 82 is fixed inside the base 1, the rotating disk 81 is connected with the second fixed cylinder 82 in a rotating manner, the circular hole 83 is formed in the side wall of the second fixed cylinder 82, the steel wire 76 penetrates through the sleeve 9 and the circular hole 83, the steel wire 76 is wound on the side wall of the rotating disk 81, and the rotating disk 81 can pull the steel wire 76 for rotation.
Referring to fig. 3, a vacuum switch 10 is installed on the top surface of the base 1, and the vacuum switch 10 is electrically connected to the vacuum pump 63 for controlling the on and off of the vacuum pump 63.
Referring to fig. 4, a starting switch 11 is installed on the top surface of the base 1, and the starting switch 11 is electrically connected with the motor 4 for controlling the starting and the closing of the motor.
Referring to fig. 2, the brake cylinder 71 is located at the bottom end of the rotating wheel 3, and the height of the brake cylinder 71 is greater than the height of the bottom of the rotating wheel 3 from the top surface of the base 1, in order to ensure that the rotating disc 81 can be braked after the brake cylinder 71 is lifted.
Referring to fig. 1, a socket 12 is disposed on a side wall of the base 1, and the socket 12 is electrically connected to the vacuum switch 10 and the start switch 11, respectively, for supplying power to the motor 4 and the vacuum pump 63.
The utility model provides a rotation type conservation of energy experiment presentation device's theory of operation as follows:
before the device is used, the device is placed at a flat position which is convenient for students to watch, the support 2 is placed at the end facing a teacher, the small iron ball 5 can not be shielded by the support 2, the device is powered on through the socket 12, when the device is used, the brake cylinder 71 is determined to be separated from the rotating wheel 3, the vacuum switch 10 is turned on, air in the vacuum cover 61 is pumped out through the vacuum pump 63, the relative vacuum state in the vacuum cover 61 is ensured, the vacuum cover 61 is made of transparent materials, the states of the small iron ball 5 and the rotating wheel 3 in the vacuum cover 61 can be clearly seen, then the vacuum switch 10 is turned off, the motor 4 drives the rotating wheel 3 to rotate when the starting switch 11 is turned on, the small iron ball 5 rotates at the bottom end of the inner side wall of the rotating wheel 3, and then the starting switch 11 is turned off, the rotating wheel 3 still rotates under the action of inertia, then the rotating disc 81 is rotated by fingers, the bottom of the rotating disc 81 rotates, the steel wire 76 is pulled, the steel wire 76 slides downwards on the pulley 73, the steel wire 76 pulls the circular ring 75 upwards, the circular ring 75 pulls the brake cylinder 71 to move upwards, the brake cylinder 71 abuts against the side wall of the rotating wheel 3, the rotating wheel 3 stops rotating, the small iron ball 5 is stopped rotating because of the rotating wheel 3, the rotating wheel 3 gives the small iron ball 5 a right potential energy, so that the small iron ball 5 moves to the right, the small iron ball 5 is kept in a static state of deflecting to the right because the small iron ball 5 is influenced by a downward gravity, the phenomenon can be kept for a certain time because in a state of relative vacuum, and finally, due to energy consumption, the small iron ball 5 returns to the bottom end of the rotating wheel 3, and finishing the demonstration.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (6)
1. A rotary energy conservation experiment demonstration device is characterized by comprising:
a base (1);
the bracket (2), the bracket (2) is installed on the top surface of the base (1);
the rotating wheel (3) is rotatably connected with one end of the bracket (2);
the motor (4) is installed on the side wall of the support (2), the motor (4) penetrates through the inside of one end of the support (2), the motor (4) is rotatably connected with the support (2), and the motor (4) is fixedly connected with the circle center of the rotating wheel (3);
the small iron ball (5), the small iron ball (5) is rotatably connected with the inner side wall of the rotating wheel (3);
the vacuum mechanism (6) is installed on the top surface of the base (1), the vacuum mechanism (6) comprises a vacuum cover (61), an air inlet pipe (62), a vacuum pump (63) and an air outlet pipe (64), the vacuum cover (61) is fixed on the top surface of the base (1), the air inlet pipe (62) is fixedly connected with the side wall of the vacuum cover (61), one end of the vacuum pump (63) is installed at the bottom end of the air inlet pipe 962, and the other end of the vacuum pump (63) is installed at the top end of the air outlet pipe (64);
the brake mechanism (7), the brake mechanism (7) is arranged on the top surface of the base (1), the brake mechanism (7) comprises a brake cylinder (71), a first fixed cylinder (72), a pulley (73), a spring (74), a circular ring (75) and a steel wire (76), the first fixed cylinder (72) is fixed on the top surface of the base (1), the brake cylinder (71) is arranged in the first fixed cylinder (72), the top end of the spring (74) is abutted against the inner top surface of the brake cylinder (71), the bottom end of the spring (74) is abutted against the base (1), the two circular rings (75) are respectively fixed at two ends of the side wall of the brake cylinder (71), the pulley (73) is arranged on the inner side wall of the first fixed cylinder (72), the two steel wires (76) are fixedly connected with the circular ring (75), and the steel wires (76) are in sliding connection with the pulley (73);
the sleeve (9) is connected with the steel wire (76) in a sliding mode;
the rotating mechanism (8), the rotating mechanism (8) is installed inside the base (1).
2. The rotary type energy conservation experiment demonstration device according to claim 1, wherein the rotating mechanism (8) comprises a rotary disc (81), a second fixed cylinder (82) and a circular hole (83), the second fixed cylinder (82) is fixed inside the base (1), the rotary disc (81) is rotatably connected with the second fixed cylinder (82), the circular hole (83) is formed in the side wall of the second fixed cylinder (82), the steel wire (76) penetrates through the sleeve (9) and the circular hole (83), and the steel wire (76) is wound on the side wall of the rotary disc (81).
3. The rotary energy conservation experiment demonstration device according to claim 1, wherein a vacuum switch (10) and a starting switch (11) are mounted on the top surface of the base (1), the vacuum switch (10) is electrically connected with the vacuum pump (63), and the starting switch (11) is electrically connected with the motor (4).
4. The rotary type energy conservation experiment demonstration device as claimed in claim 1, wherein the bottom end of the brake cylinder (71) is abutted against the top surface of the base (1), and the perimeter of the bottom end of the brake cylinder (71) is larger than that of the top end of the brake cylinder (71).
5. The rotary energy conservation experiment demonstration device according to claim 1, wherein the brake cylinder (71) is located at the bottom end of the rotating wheel (3), and the height of the brake cylinder (71) is greater than the height of the bottom of the rotating wheel (3) from the top surface of the base (1).
6. The rotary type energy conservation experiment demonstration device according to claim 3, wherein the side wall of the base (1) is provided with a socket (12), and the socket (12) is electrically connected with the vacuum switch (10) and the starting switch (11) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921843243.6U CN210896115U (en) | 2019-10-30 | 2019-10-30 | Rotary energy conservation experiment demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921843243.6U CN210896115U (en) | 2019-10-30 | 2019-10-30 | Rotary energy conservation experiment demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210896115U true CN210896115U (en) | 2020-06-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921843243.6U Active CN210896115U (en) | 2019-10-30 | 2019-10-30 | Rotary energy conservation experiment demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210896115U (en) |
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2019
- 2019-10-30 CN CN201921843243.6U patent/CN210896115U/en active Active
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