Science popularization device for tone change caused by linkage of gear and shifting piece

Abstract

The utility model provides a science popularization device for tone change caused by linkage of a gear and a plectrum. The science popularization device comprises a mounting seat, a support is arranged at the top of the mounting seat, a rotating shaft is rotatably mounted on the support, a driving mechanism is arranged in the mounting seat, and the output end of the driving mechanism is connected with a transmission mechanism to drive the rotating shaft to rotate; a plurality of gears with different sizes are arranged on the rotating shaft, a plurality of deflector rods are hinged to the top of the mounting base, the deflector rods correspond to the gears one to one, the deflector rods are of a semi-surrounding structure, the middle of each deflector rod is hinged to the mounting base, a button is arranged at one end of each deflector rod, and a deflector piece used for making contact with the corresponding gear is arranged at the other end of each deflector rod. According to the scheme, the science popularization device is provided with a group of gears and the shifting rod, different frequencies are generated by utilizing different parameters of the gears under high-speed rotation, so that different tones are converted, the science popularization effect is enhanced by an innovative interaction form, and the science popularization device has relatively high exploration performance and can motivate the curiosity and the desire to know of the public to a great extent.

Description

Technical Field

[0001] The utility model relates to the technical field of popular science devices, in particular to a popular science device with a gear linkage paddle for generating tone changes. Background Art

[0002] In popular science venues and mobile popular science facilities, there are many exhibits related to gears. These exhibits mainly demonstrate mechanical devices applying gears, simple gear transmission principles and concepts, enabling audiences to understand during operation and experience that gears can transmit power and how they play a conduction role in devices. At the same time, most existing exhibits related to music acoustics are realized by setting materials of different lengths and different materials to be struck or by means of electronic devices, and rarely can be combined with gear mechanical devices. Due to the limited relevance and difficulty of implementation between the two, it is often not easy to combine them and directly present in popular science education. Summary of the Utility Model

[0003] The utility model provides a popular science device with a gear linkage paddle for generating tone changes, so as to solve the technical problem that most existing exhibits related to music acoustics are realized by setting materials of different lengths and different materials to be struck or by means of electronic devices, and rarely can be combined with gear mechanical devices, resulting in a single display form.

[0004] To solve the above technical problem, the utility model provides the following technical solutions:

[0005] A popular science device with a gear linkage paddle for generating tone changes includes a mounting base. A bracket is provided at the top of the mounting base. A rotating shaft is rotatably installed on the bracket. A driving mechanism is arranged inside the mounting base. The output end of the driving mechanism is connected to a transmission mechanism to drive the rotating shaft to rotate. A plurality of gears with different sizes are arranged on the rotating shaft. A plurality of lever rods are hinged to the top of the mounting base. The lever rods correspond to the gears one by one. The lever rods are in a semi-surrounding structure. The middle of the lever rod is hinged to the mounting base. One end of the lever rod is provided with a button, and the other end is provided with a paddle for contacting the gear.

[0006] Optionally, the transmission mechanism includes a transmission belt. The output end of the driving mechanism is provided with a driving pulley. One end of the rotating shaft is provided with a driven pulley. The driven pulley is located above the driving pulley. The transmission belt is sleeved on the driving pulley and the driven pulley.

[0007] Optionally, the plurality of gears are arranged at intervals and arranged in the order of increasing or decreasing size.

[0008] Optionally, the brackets are provided in pairs, and the driven pulley is located inside one of the brackets.

[0009] Optionally, a bushing is provided at the top of the mounting base, one end of the lever provided with a button penetrates through the bushing, and the bushing is provided with through holes corresponding to the levers one by one.

[0010] Optionally, a compression spring is provided at the bottom of the lever, and the compression spring is installed inside the bushing.

[0011] Optionally, a protective cover made of a transparent material is provided at the top of the mounting base, and the bracket, the gear and the lever are all arranged inside the protective cover. Among them, one end of the lever connected to the button penetrates through the protective cover, and the button is located outside the protective cover.

[0012] Optionally, the button is located on one side at the bottom of the corresponding gear, and the paddle is located at the top of the corresponding gear.

[0013] The beneficial effects of the above technical solution of the present utility model are as follows:

[0014] In the above solution, the popular science device is provided with a set of gears and levers. By utilizing the different gear parameters under high-speed rotation, the difference in frequency is generated, which is then converted into different tones. The innovative interaction form enhances the popular science effect and has strong exploratory nature, which can greatly stimulate the curiosity and thirst for knowledge of the public. Description of the Drawings

[0015] Figure 1 It is the front view of the popular science device of the present utility model;

[0016] Figure 2 It is the cross-sectional view of the popular science device of the present utility model.

[0017] [Reference Signs]

[0018] 1, motor; 2, driving pulley; 3, PU belt; 4, bushing; 5, rotating shaft;

[0019] 6, bracket; 7, fixing ring; 8, paddle; 9, protective cover; 10, gear; 11, lever;

[0020] 12, compression spring. Detailed Embodiment

[0021] In order to make the technical problems, technical solutions and advantages to be solved by the present utility model clearer, the following will be described in detail with reference to the drawings and specific embodiments.

[0022] Such as Figures 1 - 2As shown in the figure, an embodiment of the present utility model provides a popular science device for generating tone changes by gear linkage paddles, which includes a mounting base. A bracket 6 is provided on the top of the mounting base. A rotating shaft 5 is rotatably mounted on the bracket 6. A motor 1 is provided inside the mounting base as a driving mechanism. The output end of the motor 1 is connected to a transmission mechanism. The transmission mechanism drives the rotating shaft 5 to rotate under the action of the motor 1. A plurality of gears 10 with different sizes are provided on the rotating shaft 5. A plurality of shift levers 11 are hinged on the top of the mounting base. The shift levers 11 serve as actuating mechanisms and correspond to the gears 10 one by one. The shift levers 11 are in a semi-enclosed structure. The middle of the shift levers 11 is hinged to the mounting base. One end of the shift lever 11 is provided with a button, and the other end is provided with a paddle 8 for contacting the gear 10. By pressing the button at one end of the shift lever 11, the paddle 8 at the other end can be pressed down to contact the gear 10.

[0023] As Figure 1 shown, the transmission mechanism includes a PU belt 3. A driving pulley 2 is provided at the output end of the motor 1. One end of the rotating shaft 5 is provided with a driven pulley. The driven pulley is located above the driving pulley 2. The PU belt 3 is sleeved on the driving pulley 2 and the driven pulley. The brackets 6 are provided in pairs. The driven pulley is located inside one of the brackets 6.

[0024] In this embodiment, the number of gears 10 is 8. The 8 gears 10 are fixedly spaced on the rotating shaft 5 through bushings and arranged in the order of decreasing size. The module of the gears 10 is 3.5. The number of teeth of the 8 gears 10 are 48, 45, 40, 36, 32, 30, 27, and 24 respectively.

[0025] As Figure 1 shown, a bushing 4 is provided on the top of the mounting base. One end of the shift lever 11 provided with a button penetrates through the bushing 4. The bushing 4 is provided with through holes corresponding to the shift levers 11 one by one.

[0026] As Figure 2 shown, a compression spring 12 is provided at the bottom of the shift lever 11. The compression spring 12 is installed inside the bushing 4. By providing the compression spring 12, the shift lever 11 can be automatically reset.

[0027] As Figure 1 and Figure 2 shown, a protective cover 9 made of a transparent material is provided on the top of the mounting base. The bracket 6, the gears 10, and the shift levers 11 are all provided inside the protective cover 9. Among them, one end of the shift lever 11 connected to the button penetrates through the protective cover 9, and the button is located outside the protective cover 9.

[0028] As Figure 2 shown, the button is located on one side at the bottom of the corresponding gear 10, and the paddle 8 is located on the top of the corresponding gear 10.

[0029] As Figure 1As shown, a fixing ring 7 is provided on the rotating shaft 5 to position and fix the gear 10.

[0030] The working process of the popular science device provided by the present utility model is as follows:

[0031] Connect the power supply of the popular science device, press the start button to make the motor 1 rotate, and the transmission mechanism transmits power, so that the rotating shaft 5 drives the gear 10 to rotate, and the gear 10 will enter a stable high-speed rotation state; press the button at one end of the lever 11 to press down the dial 8 at the other end, and the pressed-down dial 8 will contact the rotating gear 10 and make a sound. If the button of the lever 11 is released, the lever 11 will automatically reset under the action of the compression spring 12. By pressing the buttons of different levers 11, different high and low tones can be emitted.

[0032] In addition, the popular science device is also provided with a timer to time the rotation of the motor 1. When the rotation time of the motor 1 reaches the predetermined time, the motor 1 will automatically stop rotating.

[0033] In the above solution, the popular science device is provided with a set of gears and levers. By combining the gears with the tones, and using the differences in gear parameters under high-speed rotation to generate frequency differences, which are then converted into different tones; it can not only enable the audience to understand that the number of teeth and modulus of the gear determine the size of the gear, but also demonstrate that sound is generated by vibration, and the faster the vibration, the higher the frequency, and the higher the generated tone, that is, the relationship between the vibration frequency and the tone; by distributing the gears according to a certain rule, the "single string" and "chord" effects can be achieved in operation, obtaining regular tones. The innovative interactive form enhances the popular science effect and has strong exploratory nature, which can greatly stimulate the curiosity and thirst for knowledge of the public.

[0034] The above is the preferred implementation mode of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle described in the present utility model, several improvements and refinements can still be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A popular science device with gear-linked paddles that produce tone changes, characterized in that: It comprises a mounting seat, a bracket is arranged on the top of the mounting seat, a rotating shaft is rotatably mounted on the bracket, a driving mechanism is arranged inside the mounting seat, and an output end of the driving mechanism is connected to a transmission mechanism to drive the rotating shaft to rotate; A plurality of gears of different sizes are arranged on the rotating shaft, a plurality of levers are hinged on the top of the mounting seat, the levers correspond to the gears one by one, the levers are in a semi-enclosed structure, the middle part of the levers is hinged to the mounting seat, a button is arranged at one end of the lever, and a paddle for contacting the gear is arranged at the other end.

2. The popular science device with gear-linked paddles that produce tone changes according to claim 1, characterized in that: The transmission mechanism comprises a transmission belt, a driving pulley is arranged at the output end of the driving mechanism, a driven pulley is arranged at one end of the rotating shaft, the driven pulley is located above the driving pulley, and the transmission belt is sleeved on the driving pulley and the driven pulley.

3. The popular science device with gear-linked paddles that produce tone changes according to claim 1, characterized in that: The plurality of gears are arranged at intervals and in an order of increasing or decreasing size.

4. The popular science device with gear-linked paddles that produce tone changes according to claim 2, characterized in that: The brackets are arranged in pairs, and the driven pulley is located inside one of the brackets.

5. The popular science device with gear-linked paddles that produce tone changes according to claim 1, characterized in that: A bushing is arranged on the top of the mounting seat, and one end of the lever provided with a button passes through the bushing, and the bushing is provided with through holes corresponding to the levers one by one.

6. The popular science device with gear-linked paddles that produce tone changes according to claim 5, characterized in that: A compression spring is arranged at the bottom of the lever, and the compression spring is installed in the bushing.

7. The popular science device with gear-linked paddles that produce tone changes according to claim 1, characterized in that: A shield made of transparent material is arranged on the top of the mounting seat, and the bracket, the gear and the lever are all arranged inside the shield, wherein one end of the lever connected to the button passes through the shield, and the button is located outside the shield.

8. The popular science device with gear-linked paddles that produce tone changes according to claim 1, characterized in that: The button is located on one side of the bottom of the corresponding gear, and the paddle is located on the top of the corresponding gear.

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