CN210606244U

CN210606244U - Multifunctional device for researching sound tone and volume

Info

Publication number: CN210606244U
Application number: CN201921364649.6U
Authority: CN
Inventors: 陈梓墨
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-05-22
Anticipated expiration: 2029-08-21

Abstract

The utility model relates to a device for multifunctional research of sound tone and volume, which comprises a bridge and a box body, wherein the cross section of the box body is in a shape like the Chinese character 'ri', the upper surface of the box body is covered with a mask, the right side surface of the box body is concave, and the right side edge of the upper surface of the mask is provided with a plurality of string adjusting knobs at equal intervals; the left side surface of the box body is provided with a number of fixed string nails equal to the number of the string adjusting knobs at equal intervals; the string adjusting knob is connected with a string hook, and a string is connected between the string hook and the fixed string nail; the musical instrument pillow is mounted on the edge of the left side of the upper surface of the mask, and the musical instrument pillow is also mounted in the position close to the right in the middle of the upper surface of the mask; the front edge of the upper surface of the mask is positioned between the two piano pillows and is provided with an amplitude controller mounting hole; use this teaching aid to carry out the contrast experiment, can be used to explore the relation between the intensity of sound and vibration amplitude size, the relation between the height of sound and string vibration speed.

Description

Multifunctional device for researching sound tone and volume

Technical Field

The utility model relates to a teaching aid technical field, especially multi-functional device of studying sound tone and volume.

Background

The traditional musical instrument teaching only tells students how to use and how to play, and cannot show the principle of the students visually. The vibration amplitude of the object is different, and the strength of sound is influenced; the vibration speed is different, the sound level is different, and the length, thickness and tightness of the object are related to the vibration speed.

In traditional teaching of acoustic content, a rubber band or a steel ruler is often used as an experiment carrier to study two important characteristics of sound volume and tone. The rubber band is easy to deform, and the thickness and length of the rubber band are changed along with the tensioning, so that the variable cannot be controlled; the effect that the steel ruler makes different sounds is not obvious, and students are not easy to judge.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problems, the present invention provides a device for multifunctional sound tone and volume research, which can be used to explore the relationship between the intensity of sound and the amplitude of vibration, the relationship between the height of sound and the speed of vibration, and the intuitive display.

The utility model discloses adopt following scheme to realize in the embodiment: the multifunctional device for researching sound tone and volume comprises a bridge, a box body and an amplitude controller, wherein the cross section of the box body is in a shape of Chinese character 'ri', a mask is covered on the upper surface of the box body, the right side surface of the box body is concave, and a plurality of string adjusting knobs are arranged on the right side edge of the upper surface of the mask at equal intervals; the left side surface of the box body is provided with a number of fixed string nails equal to the number of the string adjusting knobs at equal intervals; the string adjusting knob is connected with a string hook, and a string is connected between the string hook and the fixed string nail; the musical instrument pillow is mounted on the edge of the left side of the upper surface of the mask, and the musical instrument pillow is also mounted in the position close to the right in the middle of the upper surface of the mask; the front edge of the upper surface of the mask is positioned between the two musical instrument pillows and is provided with an amplitude controller mounting hole.

In one embodiment of the present invention, four string adjusting knobs are installed, and four string fixing nails are also installed; the fixed string nail is a bolt, a gasket and two nuts are installed on the bolt, the bolt penetrates out of the box body from the left side wall of the box body, the gasket is sleeved, one of the nuts is screwed on the gasket, and the bolt is fixed.

The utility model discloses an in the embodiment, amplitude controller includes two screw rods, one of them the front end welding of screw rod has the baffle, another the top welding of screw rod has the sleeve, attack the screw thread in the sleeve, the installation telescopic still the cover is equipped with the nut on the screw rod, the installation the baffle the screw rod is worn the cover and is in the sleeve

In an embodiment of the present invention, the axial line of the sleeve is perpendicular to the axial line of the screw rod.

The utility model has the advantages that: the utility model provides a multifunctional device for researching sound tone and volume, which is mainly characterized in that students can independently research and find out the rule; the biggest bright spot is a unique and innovative integrated design which integrates a learning tool for exploring the principle and engineering practice for expanding the application of the principle. The device is used for carrying out a contrast experiment, can be used for researching the relation between the strength of sound and the amplitude of vibration, and can be used for researching the relation between the height of sound and the speed of vibration; meanwhile, on the basis of realizing the function of the teaching aid, students can manufacture small musical instruments playing different tones by using the original materials, thereby exciting the interest in engineering practice.

Drawings

Fig. 1 is a top view of a multifunctional device for studying sound pitch and volume.

Fig. 2 is a bottom view of the multifunctional device for studying sound tone and volume.

FIG. 3 is a schematic diagram of the installation of the multifunctional device for studying sound tone and volume to study the effect of the vibration amplitude of strings on the intensity of sound.

Fig. 4 is a schematic diagram of the structure of the amplitude controller.

Fig. 5 is a schematic structural view of the bridge.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1 to 5, the present invention provides a multifunctional device for studying sound tone and volume, which includes a bridge for exploring the relationship between the length of the string vibrating part and the sound level; the vibration isolation box is characterized by further comprising a box body 1 and an amplitude controller 8, wherein the cross section of the box body 1 is in a shape of Chinese character 'ri', a mask 2 covers the upper surface of the box body 1 and can generate resonance and increase volume, the right side surface of the box body 1 is concave, and a plurality of string adjusting knobs 4 are arranged on the right side edge of the upper surface of the mask 2 at equal intervals; the left side surface of the box body 1 is provided with a plurality of fixed string nails 6 with the same number as the string adjusting knobs 4 at equal intervals; the string adjusting knob 4 is connected with a string hook 5, and a string 9 is connected between the string hook 5 and the fixed string nail 6; a piano pillow 3 is arranged on the left edge of the upper surface of the mask 2, and the piano pillow 3 is also arranged in the middle of the upper surface of the mask 2 close to the right; the front edge of the upper surface of the mask 2 is positioned between the two fiddle pillows 3 and is provided with an amplitude controller 8 mounting hole 7; the string adjusting knob 4 and the bridge are all available.

With reference to fig. 1 to 3, in an embodiment of the present invention, four tuning knobs 4 are installed, and four fixing pegs 6 are also installed; the fixed string nail 6 is the bolt and installs gasket and two nuts on the bolt, the bolt is worn out from box 1 the 1 left side wall of box is sheathe in gasket and is screwed the nut and fix the bolt, a nut is used for fixing bolt, and produced error when another nut is used for adjusting the 9 nooks of preparation string.

With reference to fig. 3 and 4, in an embodiment of the present invention, the amplitude controller 8 includes two screws, one of the screws 81 is welded with a baffle 83 at the front end thereof, the other screw 81 is welded with a sleeve 82 at the top end thereof, the sleeve 82 is tapped with threads, the screw 81 on which the sleeve 82 is mounted is further sleeved with a nut 84, the screw 81 on which the baffle 83 is mounted is sleeved in the sleeve 82 to limit the vibration amplitude of the string 9, so as to probe the relationship between the sound intensity and the weakness caused by different string vibration amplitudes.

Referring to fig. 4, in an embodiment of the present invention, the axis of the sleeve 82 is perpendicular to the axis of the screw welded thereto.

The utility model discloses an in the embodiment, be equipped with four different musical instrument strings 9 of thickness of repeatedly usable, the end all has the noose, makes things convenient for the dismouting.

The utility model discloses have following theory of operation (function):

1. the method can be used for researching the influence of the vibration amplitude of the string on the sound intensity:

thick string is installed earlier through the string hook of fixed string nail and S-shaped, and installation vibration range controller, the screw rod of rotatory vibration range controller area baffle change the distance between baffle and the string, and the scope is stirred to the restriction string to just restricted the range of string vibration, the student just can discover, and vibration range is big, and the sound is strong, and the little sound of range is weak.

2. Can be used for researching the influence of the tightness of the string on the sound level:

when the string is shifted, the 'tuning knob' is rotated to different directions to adjust the tightness of the string, so that students can easily observe different tightness, different sound levels and different vibration speeds of the string.

3. The method can be used for researching the influence of different thicknesses of strings on the sound level:

and then a thin string is installed, the tightness of the two strings is approximately consistent by rotating the adjusting knob, and students can find out that: the thick strings vibrate slowly, the generated sound is low, the thin strings vibrate quickly, and the sound is high;

4. can be used for researching the influence of the length of the string on the sound level:

the bridge is placed below the strings on the mask, the length of the vibrating part of the strings is limited by the bridge, and students can find out that the length of the changed strings can change the height of sound through comparison.

5. Assembling into a musical instrument:

on the basis of former teaching aid, install two different strings of thickness again, increase three musical instrument sign indicating number. By utilizing the obtained principle, through engineering practice links such as design, manufacture, improvement, debugging and the like, the small musical instrument capable of playing different tones can be manufactured.

The above description is only for the preferred embodiment of the present invention, and should not be interpreted as limiting the scope of the present invention, which is intended to cover all the equivalent changes and modifications made in accordance with the claims of the present invention.

Claims

1. Device of multi-functional research sound tone and volume, including the musical instrument sign indicating number, its characterized in that: the vibration isolation device is characterized by further comprising a box body and an amplitude controller, wherein the cross section of the box body is in a shape of Chinese character 'ri', a mask is covered on the upper surface of the box body, the right side surface of the box body is concave, and a plurality of string adjusting knobs are arranged on the right side edge of the upper surface of the mask at equal intervals; the left side surface of the box body is provided with a number of fixed string nails equal to the number of the string adjusting knobs at equal intervals; the string adjusting knob is connected with a string hook, and a string is connected between the string hook and the fixed string nail; the musical instrument pillow is mounted on the edge of the left side of the upper surface of the mask, and the musical instrument pillow is also mounted in the position close to the right in the middle of the upper surface of the mask; the front edge of the upper surface of the mask is positioned between the two musical instrument pillows and is provided with an amplitude controller mounting hole.

2. The multifunctional device for studying sound tone and volume of claim 1, wherein: the number of the string adjusting knobs is four, and the number of the fixed string nails is four; the fixed string nail is a bolt, a gasket and two nuts are installed on the bolt, the bolt penetrates out of the box body from the left side wall of the box body, the gasket is sleeved, one of the nuts is screwed on the gasket, and the bolt is fixed.

3. The multifunctional device for studying sound tone and volume of claim 1, wherein: the amplitude controller comprises two screw rods, wherein a baffle is welded at the front end of one screw rod, a sleeve is welded at the top end of the other screw rod, threads are tapped in the sleeve, a nut is further sleeved on the screw rod for installing the sleeve, and the screw rod for installing the baffle is sleeved in the sleeve.

4. The multifunctional device for studying sound tone and volume of claim 3, wherein: the axis of the sleeve is perpendicular to the axis of the screw rod welded with the sleeve.