Airflow music turntable demonstration device

Abstract

The utility model relates to the technical field of science popularization exhibits, in particular to an airflow music turntable demonstration device. The demonstration device comprises a rotary disc which rotates around the vertical axis of the rotary disc on a demonstration platform, at least three groups of sound holes which are distributed along the radial direction of the rotary disc are arranged on the disc surface of the rotary disc, a rotary part with a vertical rotary line is arranged on the side of the rotary disc, and the demonstration device further comprises an air injection mechanism. A nozzle of the air injection mechanism can swing around a vertical rotation line to be adjusted to different groups of sound hole movement paths, the air injection mechanism further comprises a handle which is used for being held by a hand and can drive the nozzle to swing and adjust, and an air blowing button for pressing and opening the nozzle is arranged at a thumb holding position on the handle. According to the utility model, the structure of the airflow music turntable is optimized, so that the airflow music turntable can span a plurality of orders of tones to realize the demonstration of songs.

Description

Technical Field

[0001] The utility model relates to the technical field of popular science exhibits, in particular to an airflow music turntable demonstration device. Background Art

[0002] The airflow music turntable is a popular science exhibit that produces sound by blowing air towards a metal plate with holes that rotates at high speed.

[0003] Most existing airflow music turntables, as described in Chinese Patent Publication No. CN2845064Y, titled "Airflow Music Turntable Popular Science Exhibit," feature a high-speed rotating metal disk with circular holes. Furthermore, an air nozzle is provided to blow air into the holes, generating sound. Specifically, to produce different tones when the nozzle blows air into the metal disk, at least three groups of circular holes are arranged radially along the metal disk. As the metal disk rotates, the motion paths of the at least three groups of circular holes form at least three spaced concentric circles. By adjusting the air nozzle, the nozzle is directed toward different concentric circles, producing different tones. However, the air jet opening and closing of the existing air nozzle and the rotation opening and closing of the metal disk are often controlled by the same control switch, so that after the device is turned on, the air nozzle is in a state of continuous blowing. When the air nozzle is adjusted from the innermost circle to the outermost circle, each adjacent order of tone will be demonstrated continuously once; that is, the existing air flow music turntable can only realize the continuous demonstration of adjacent orders of tone, and cannot realize the demonstration of songs across several orders of tone. There are problems with poor interactive form and experience effect, and therefore it is urgent to solve it. Utility Model Content

[0004] In order to avoid and overcome the technical problems existing in the prior art, the utility model provides an airflow music turntable demonstration device, which optimizes the structure of the airflow music turntable so that the airflow music turntable can demonstrate songs across several orders of tone.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An air flow music turntable demonstration device includes a turntable that rotates around its own vertical axis on a demonstration platform, with at least three groups of sound holes distributed radially along the turntable being provided on the turntable surface, and a rotating portion with a vertical rotation line being provided on the side of the turntable. The demonstration device also includes an air jet mechanism, the nozzle of which can be swung around the vertical rotation line to be adjusted to the movement path of different groups of sound holes, the air jet mechanism also includes a handle for being held by the palm of the hand and for driving the nozzle to swing and adjust, and a blowing button for pressing to open the nozzle is provided at the thumb grip of the handle.

[0007] As a further solution of the present invention: the rotating part includes a rotating rod arranged coaxially with the vertical rotating line, the rotating rod can rotate around the vertical rotating line, a rocker arm is fixed to the side wall of the rotating rod, the nozzle is installed at the free end of the rocker arm, and the handle is fixed to the top of the rotating rod.

[0008] As a further solution of the present invention: the sound hole is configured as a long hole structure, and the hole length direction of the long hole is distributed along the radial direction of the rotating disk.

[0009] As a further solution of the present invention: a music score is provided on the demonstration table.

[0010] As a further solution of the present invention: a transparent protective cover is provided on the demonstration platform, the transparent protective cover is arranged on the outside of the rotating power mechanism and the turntable, and a through hole for the handle to pass through is provided on the transparent protective cover.

[0011] As a further solution of the present invention: a rotating power mechanism for driving the turntable to rotate is provided on the demonstration platform.

[0012] As a further solution of the present invention: an on / off button for controlling the on / off of the rotary power mechanism and the jet mechanism is provided on the demonstration platform.

[0013] As a further solution of the present invention, the sound holes are arranged in eight groups.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In the initial state after the device is turned on, the turntable rotates at high speed, while the nozzle is in a closed state where it cannot eject air. During performance, the operator holds the handle with their hands to drive the nozzle to adjust the nozzle so that the nozzle rotates and adjusts to the movement path of the tone hole of the corresponding order of tone, and uses the thumb to press the blow button to spray air into the tone hole of the corresponding order of tone, thereby emitting the sound of the corresponding tone across the order, thereby enhancing the interactive form and experience effect. In addition, the method of setting the blow button to open the nozzle on the thumb does not require the thumb to exert force when the handle is rotated by the palm of the hand. The thumb serves as the active pressing part for pressing the blow button, which not only facilitates the operation of the blow button, but also does not interfere with the rotation of the handle. In addition, the method of using the thumb to press the blow button to make the nozzle blow out the sound of the corresponding tone has a similar fun to "playing", which further enhances the interactive form and experience effect.

[0016] 2. The sound hole adopts a long hole structure. Compared with the traditional round hole structure, the resonant sound stays longer and the demonstration sound is louder.

[0017] 3. Music scores are provided on the demonstration table for operators to play according to, so as to facilitate better interactive demonstration.

[0018] 4. The setting of the transparent protective cover makes the sound more concentrated and reduces interference from the external environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the turntable and the air-jet mechanism of the utility model.

[0020] Figure 2 It is a schematic structural diagram of the utility model from a top view.

[0021] Figure 3 It is a schematic structural diagram of the top view of the rotating disk in the present invention.

[0022] Figure 4 It is a schematic cross-sectional structural diagram of the present utility model.

[0023] In the figure: 10, demonstration table; 20, turntable; 21, sound hole; 30, rotary power mechanism; 40, jet mechanism; 41, rotating rod; 42, rocker arm; 421, nozzle; 43, handle; 431, blowing button; 50, transparent protective cover; 60, opening and closing button; 70, music score. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] For ease of understanding, the specific structure and working mode of the present invention are further described below with reference to the accompanying drawings:

[0026] The specific structure of the utility model refers to Figure 1-4 As shown, its main structure includes a turntable 20 that rotates about its vertical axis on a demonstration platform 10. The turntable 20 is provided with at least three groups of sound holes 21 distributed radially along the turntable 20, and an air-jet mechanism 40. Specifically, a rotating portion with a vertical rotation line is provided on the side of the turntable 20. The nozzle 421 of the air-jet mechanism 40 can be swung around the vertical rotation line to adjust the movement path of different groups of sound holes 21. The air-jet mechanism 40 also includes a handle 43 for palm grip that drives the nozzle 421 to swing and adjust. The thumb grip on the handle 43 is provided with a blow button 431 that is pressed to activate the nozzle 421.

[0027] On the basis of the above, if Figure 1As shown, the demonstration platform 10 is provided with a rotary power mechanism 30 for driving the turntable 20 to rotate. Specifically, the rotary power mechanism 30 can be a separate motor or a motor combined with a gear set or a reducer.

[0028] In addition, if Figure 2 As shown, the demonstration platform 10 is provided with an on / off button 60 for controlling the opening and closing of the rotating power mechanism 30 and the air-jet mechanism 40. This button is used to activate the demonstration device, causing the turntable 20 to rotate and the air-jet mechanism 40 to be activated. The air-jet mechanism 40 is in an activated state, ready for air blowing by pressing the air-jet button 431 at any time.

[0029] After pressing the on / off button 60, the turntable 20 rotates at high speed, while the nozzle 421 is in a closed state, ready to be ejected at any time by pressing the blow button 431. During performance, the operator grasps the grip 43 to drive the nozzle 421 to adjust the nozzle 421 so that the nozzle 421 rotates and adjusts to the motion path of the tone hole 21 of the corresponding scale. The operator then presses the blow button 431 with the thumb, which ejects air into the tone hole 21 of the corresponding scale, thereby producing the corresponding scale sound across scales, thus enhancing the interactive form and experience. In addition, the method of setting the blowing button 431 for opening the nozzle 421 at the thumb is that the thumb does not need to exert force when the palm of the hand holds the handle 43 and rotates it. The thumb serves as a movable pressing part for pressing the blowing button 431, which not only makes the operation of the blowing button 431 convenient, but also does not interfere with the rotation of the handle 43. In addition, the method of pressing the blowing button 431 with the thumb to make the nozzle 421 blow out a sound of corresponding tone, which has a fun similar to "playing" and further enhances the interactive form and experience effect.

[0030] Specifically, such as Figure 3 As shown, the sound holes 21 are arranged in eight groups to facilitate playing more simple songs.

[0031] Specifically, such as Figure 1 As shown, the rotating part includes a rotating rod 41 arranged coaxially with the plumb rotating line, and the rotating rod 41 can rotate around the plumb rotating line; a rocker arm 42 is fixed to the side wall of the rotating rod 41, the nozzle 421 is installed at the free end of the rocker arm 42, and the handle 43 is fixed to the top end of the rotating rod 41, so that the operating space of the handle 43 is ample, thereby improving the convenience of operating the handle 43.

[0032] Further, such as Figure 3 As shown, the sound hole 21 is set to a long hole structure, and the length direction of the long hole is distributed along the radial direction of the turntable 20. Compared with the traditional round hole structure, the resonant sound stays longer and the demonstration sound is louder, further improving the demonstration effect.

[0033] like Figure 2As shown, a music score 70 is provided on the demonstration platform 10 for operators to play for reference, so as to facilitate better interactive demonstration.

[0034] In addition, if Figure 1 and Figure 4 As shown, a transparent protective cover 50 is provided on the demonstration platform 10, and the transparent protective cover 50 is arranged on the outside of the rotating power mechanism 30 and the turntable 20, and a through hole for the handle 43 to pass through is provided on the transparent protective cover 50, so that the sound is more concentrated and the interference of the external environment on the demonstration process is reduced.

[0035] Of course, it will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, but also encompasses the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and it is intended that all variations that fall within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0036] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0037] The technology, shape and structure that are not described in detail in this utility model are all well-known technologies.

Claims

1. An airflow music turntable demonstration device, comprising a turntable (20) that rotates about its own vertical axis on a demonstration platform (10), and at least three groups of sound holes (21) are provided on the turntable (20) and distributed along the radial direction of the turntable (20), characterized in that: A rotating portion with a vertical rotation line is provided on the side of the turntable (20). The demonstration device also includes an air jet mechanism (40). The nozzle (421) of the air jet mechanism (40) can be swung around the vertical rotation line to adjust to the movement path of different groups of sound holes (21). The air jet mechanism (40) also includes a handle (43) for holding with a palm and driving the nozzle (421) to swing and adjust. A blowing button (431) for pressing to open the nozzle (421) is provided on the thumb grip of the handle (43).

2. The airflow music turntable demonstration device according to claim 1, characterized in that: The rotating part includes a rotating rod (41) arranged coaxially with the vertical rotating line. The rotating rod (41) can rotate around the vertical rotating line. A swing rod (42) is fixed to the side wall of the rotating rod (41). The nozzle (421) is installed at the free end of the swing rod (42). The handle (43) is fixed to the top of the rotating rod (41).

3. An airflow music turntable demonstration device according to claim 1 or 2, characterized in that: The sound hole (21) is configured as a long hole structure, and the hole length direction of the long hole is distributed along the radial direction of the rotating disk (20).

4. An airflow music turntable demonstration device according to claim 1 or 2, characterized in that: The demonstration platform (10) is provided with a music score (70).

5. The airflow music turntable demonstration device according to claim 1 or 2, characterized in that: The demonstration platform (10) is provided with a transparent protective cover (50), which is arranged outside the rotary power mechanism (30) and the turntable (20), and is provided with a through hole for the handle (43) to pass through.

6. An airflow music turntable demonstration device according to claim 1 or 2, characterized in that: The demonstration platform (10) is provided with a rotary power mechanism (30) for driving the rotary disc (20) to rotate.

7. The airflow music turntable demonstration device according to claim 6, characterized in that: The demonstration platform (10) is provided with an opening and closing button (60) for controlling the opening and closing of the rotating power mechanism (30) and the jet mechanism (40).

8. The airflow music turntable demonstration device according to claim 1 or 2, characterized in that: The sound holes (21) are arranged in eight groups.

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