CN214624142U - Sound focusing demonstration device - Google Patents
Sound focusing demonstration device Download PDFInfo
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- CN214624142U CN214624142U CN202120640492.6U CN202120640492U CN214624142U CN 214624142 U CN214624142 U CN 214624142U CN 202120640492 U CN202120640492 U CN 202120640492U CN 214624142 U CN214624142 U CN 214624142U
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- fixedly connected
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- top plate
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Abstract
The utility model discloses an acoustic focusing demonstration device, which comprises an outer cover device, an acoustic wave generating device and a bottom plate, the novel multifunctional telescopic rod is characterized in that the inner wall of the outer cover device is fixedly connected with the periphery of the soft inner cover, one side of the soft inner cover is fixedly connected with one end of the hollow rod, the other end of the hollow rod is fixedly connected with one side of the top plate, the inner wall of the hollow rod is in threaded connection with one end of the screw rod, the other end of the screw rod is fixedly connected with the middle of the handle, the middle of the screw rod is movably connected with the top plate, one side of the top plate is fixedly connected with one end of the long rod, the other end of the long rod is fixedly connected with one side of the outer cover device, the two sides of the bottom end of the top plate are fixedly connected with the top end of the first supporting rod respectively, the other side of the top end of the platform is fixedly connected with the bottom end of the sliding track, the top end of the sliding track is slidably connected with the two sides of the inner wall of the sliding block, and the middle of the top end of the sliding block is fixedly connected with the bottom end of the second supporting rod. The utility model discloses simple structure, convenient operation.
Description
Technical Field
The utility model relates to a demonstration technical field particularly, relates to an acoustic focusing presentation device.
Background
The sound focusing refers to the phenomenon that the concave surface forms concentrated reflection to sound waves, so that the reflected sound is focused in a certain area, and the sound is particularly loud in the area. An acoustic focus demonstration apparatus is a device that demonstrates acoustic focus to everyone in a concrete and sensible manner.
The traditional sound focusing demonstration device is generally a fixed concave surface, sound waves are transmitted from the direction opposite to the concave surface, and are concentrated at the focus of the concave surface through the focusing effect of the concave surface, so that the sound at the focus is louder than other places, an experiencer can obviously feel the difference of the sound size when standing at different positions, and can specifically feel the focusing effect of the concave surface on the sound.
However, the curvature of the concave surface of the existing sound focusing demonstration device is determined, the focusing effect on the sound is not changed, and an experiencer cannot determine whether the difference of the concave surfaces has influence on the focusing of the sound or what influence the difference of the concave surfaces has influence on the focusing of the sound.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an acoustic focusing presentation device to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a sound focusing demonstration device comprises an outer cover device, a sound wave generating device and a bottom plate, and is characterized in that the inner wall of the outer cover device is fixedly connected with the periphery of a soft inner cover, one side of the soft inner cover is fixedly connected with one end of a hollow rod, the other end of the hollow rod is fixedly connected with one side of a top plate, the inner wall of the hollow rod is in threaded connection with one end of a screw rod, the other end of the screw rod is fixedly connected with the middle part of a handle, the middle part of the screw rod is movably connected with the top plate, the periphery of one side of the top plate is fixedly connected with one end of a long rod respectively, the other end of the long rod is fixedly connected with the periphery of one side of the outer cover device, the two sides of the bottom end of the top plate are fixedly connected with the top end of a first supporting rod respectively, the bottom end of the first supporting rod is fixedly connected with one side of the top end of a platform, and the bottom end of the platform is fixedly connected with the top end of the bottom plate, the top opposite side of platform and the orbital bottom fixed connection that slides, orbital top and the inner wall both sides sliding connection of slider slide, the top middle part of slider and the bottom fixed connection of second bracing piece, the top of second bracing piece with sound wave generating device's bottom fixed connection, one side of sound wave generating device and the one end fixed connection of electric wire, the inner wall middle part and the sound wave detection device fixed connection of dustcoat device.
Furthermore, the middle part of the hollow rod is movably connected with one side of the outer cover device.
Further, the sound wave detection device is in signal connection with the terminal.
Furthermore, the other end of the wire is electrically connected with a power supply.
Furthermore, one side of the sliding block is in threaded connection with the fixing bolt.
Furthermore, two ends of the sliding rail are respectively provided with a resisting block.
Furthermore, the bottom end of the bottom plate is provided with an anti-skid leather pad.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses a handle is twisted the screw rod and is made hollow pole drive software inner cover round trip movement in the outer cover device to realize changing the internal concave surface camber of cover, be convenient for detect the influence of different concave surface curvatures to the sound wave. Meanwhile, the sound wave generating device can move on the sliding track under the action of the sliding block, so that the device can detect different influences of the distance of the sound wave on the focusing of the concave surface.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic overall cross-sectional view of an acoustic focusing demonstration apparatus;
fig. 2 is a schematic side view of an acoustic focusing demonstration apparatus as a whole.
Reference numerals:
1. housing means; 2. a soft inner cover; 3. an acoustic wave detection device; 4. a hollow shaft; 5. a long rod; 6. a screw; 7. a handle; 8. a top plate; 9. a first support bar; 10. a platform; 11. a base plate; 12. an electric wire; 13. a second support bar; 14. a slider; 15. a sliding track; 16. fixing the bolt; 17. an acoustic wave generating device.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; 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 in specific cases to those skilled in the art.
Referring to fig. 1-2, a sound focusing demonstration apparatus according to an embodiment of the present invention comprises an outer cover device 1, a sound wave generating device 17 and a bottom plate 11, wherein an inner wall of the outer cover device 1 is fixedly connected to the periphery of a soft inner cover 2, one side of the soft inner cover 2 is fixedly connected to one end of a hollow rod 4, the other end of the hollow rod 4 is fixedly connected to one side of a top plate 8, the inner wall of the hollow rod 4 is connected to one end of a screw 6 through a thread, the other end of the screw 6 is fixedly connected to the middle of a handle 7, the middle of the screw 6 is movably connected to the top plate 8, the periphery of one side of the top plate 8 is fixedly connected to one end of a long rod 5, the other end of the long rod 5 is fixedly connected to the periphery of one side of the outer cover device 1, and both sides of the bottom end of the top plate 8 are fixedly connected to the top end of a first supporting rod 9, the bottom of first bracing piece 9 and the top one side fixed connection of platform 10, the bottom of platform 10 with the top fixed connection of bottom plate 11, the top opposite side of platform 10 and the bottom fixed connection of slip track 15, the top of slip track 15 and the inner wall both sides sliding connection of slider 14, the top middle part of slider 14 and the bottom fixed connection of second bracing piece 13, the top of second bracing piece 13 with the bottom fixed connection of sound wave generating device 17, one side of sound wave generating device 17 and the one end fixed connection of electric wire 12, the inner wall middle part and the 3 fixed connection of sound wave detection device of dustcoat device 1.
Through the above technical scheme of the utility model, the middle part of hollow pole 4 with one side swing joint of dustcoat device 1, sound wave detection device 3 and terminal signal connection, the other end and the power electric connection of electric wire 12, one side and the 16 threaded connection of fixing bolt of slider 14, the piece is installed respectively to sliding track 15's both ends, anti-skidding leather pad is installed to bottom plate 11's bottom.
The working principle is as follows: the staff twists handle 7 and lets screw rod 6 drive hollow rod 4 and remove about, and hollow rod 4 pulling software inner cover changes the concave curvature in dustcoat device 1, and the sound wave detection device 3 of being convenient for detects the concave curvature of difference, and sound wave generating device 17 can move on slip track 15 under the help of slider 14 simultaneously, realizes the influence of the distance that different sound waves take place to the testing result.
In summary, the following steps: the utility model discloses a handle is twisted the screw rod and is made hollow pole drive software inner cover round trip movement in the outer cover device to realize changing the internal concave surface camber of cover, be convenient for detect the influence of different concave surface curvatures to the sound wave. Meanwhile, the sound wave generating device can move on the sliding track under the action of the sliding block, so that the device can detect different influences of the distance of the sound wave on the focusing of the concave surface.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A sound focusing demonstration device comprises an outer cover device (1), a sound wave generating device (17) and a bottom plate (11), and is characterized in that the inner wall of the outer cover device (1) is fixedly connected with the periphery of a soft inner cover (2), one side of the soft inner cover (2) is fixedly connected with one end of a hollow rod (4), the other end of the hollow rod (4) is fixedly connected with one side of a top plate (8), the inner wall of the hollow rod (4) is in threaded connection with one end of a screw rod (6), the other end of the screw rod (6) is fixedly connected with the middle part of a handle (7), the middle part of the screw rod (6) is movably connected with the top plate (8), one side of the top plate (8) is fixedly connected with one end of a long rod (5) all around, the other end of the long rod (5) is fixedly connected with the periphery of one side of the outer cover device (1), the two sides of the bottom end of the top plate (8) are respectively fixedly connected with the top end of the first supporting rod (9), the bottom end of the first supporting rod (9) is fixedly connected with one side of the top end of the platform (10), the bottom end of the platform (10) is fixedly connected with the top end of the bottom plate (11), the other side of the top end of the platform (10) is fixedly connected with the bottom end of the sliding track (15), the top end of the sliding track (15) is connected with the two sides of the inner wall of the sliding block (14) in a sliding way, the middle part of the top end of the sliding block (14) is fixedly connected with the bottom end of the second supporting rod (13), the top end of the second supporting rod (13) is fixedly connected with the bottom end of the sound wave generating device (17), one side of the sound wave generating device (17) is fixedly connected with one end of the electric wire (12), the middle part of the inner wall of the outer cover device (1) is fixedly connected with the sound wave detection device (3).
2. An acoustic focusing demonstration device as claimed in claim 1 wherein the hollow bar (4) is pivotally connected at its mid-portion to one side of the housing means (1).
3. Acoustic focusing demonstration device according to claim 1 characterized in that the acoustic detection means (3) is signal connected to a terminal.
4. An acoustic focusing demonstration apparatus as claimed in claim 1 wherein the other end of the wire (12) is electrically connected to a power source.
5. An acoustic focusing demonstration device as claimed in claim 1 wherein one side of the slide (14) is threadedly attached to a fixing bolt (16).
6. An acoustic focusing demonstration apparatus as claimed in claim 1 wherein the sliding track (15) is provided with a stop at each end.
7. An acoustic focusing demonstration device as claimed in claim 1 wherein the bottom end of the base plate (11) is fitted with an anti-slip leather pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120640492.6U CN214624142U (en) | 2021-03-30 | 2021-03-30 | Sound focusing demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120640492.6U CN214624142U (en) | 2021-03-30 | 2021-03-30 | Sound focusing demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214624142U true CN214624142U (en) | 2021-11-05 |
Family
ID=78397635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120640492.6U Active CN214624142U (en) | 2021-03-30 | 2021-03-30 | Sound focusing demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214624142U (en) |
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2021
- 2021-03-30 CN CN202120640492.6U patent/CN214624142U/en active Active
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