Directional sound propagation device
By designing a sounding device with an automatic height and direction adjustment mechanism, the problems of low directional propagation efficiency and low adjustment accuracy in the prior art are solved, and efficient and accurate directional propagation effect is achieved.
Patent Information
- Application Number
- CN202421453571.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-06-24
AI Technical Summary
When performing directional propagation of sound, the existing sound generating devices have low efficiency and low adjustment accuracy, and require multiple manual operations, which is labor-intensive and inconvenient.
A sound directional propagation device is designed, including a base, a height adjustment mechanism, a direction adjustment mechanism and a sound generating device, and automatic adjustment of the height and direction of the sound generating device is achieved through a motor-driven screw and gear system.
Automatic adjustment of the height and direction of the sound generator is realized, adjustment efficiency and accuracy are improved, manual operation is reduced, and convenience and practicality are improved.
Smart Images
Figure CN222827358U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sound propagation, in particular to a sound directional propagation device. Background Art
[0002] At present, some home or commercial sound-generating devices, such as speakers, or some ultrasonic sounders used for surveying and mapping, often adjust themselves according to the required sound position (i.e., sound direction, sound height) when performing directional sound transmission and propagation. This method is not only inefficient and has low adjustment accuracy, but also requires the staff to operate multiple times when multiple adjustments are required, which is very laborious. For this reason, we propose a sound directional propagation device to solve the problems raised in the above background technology. Utility Model Content
[0003] The purpose of the utility model is to provide a sound directional propagation device to solve the problems raised in the above background technology.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sound directional propagation device, comprising a base, a height adjustment mechanism, a direction adjustment mechanism and a sound-emitting device, wherein the height adjustment mechanism is fixedly connected to the right side of the top of the base, the direction adjustment mechanism is fixedly connected to the movable end of the height adjustment mechanism, and the sound-emitting device is fixedly mounted on the direction adjustment mechanism by bolts.
[0005] Furthermore, the height adjustment mechanism includes a vertical plate, which is fixedly connected to the right side of the top of the base, a groove is provided on the front side of the vertical plate, and guide slide grooves are provided on the left and right sides of the vertical plate. A first motor is fixedly installed at the position of the top of the vertical plate corresponding to the groove, and the output shaft of the first motor passes through the inside of the groove and is fixedly connected to a screw rod, a lifting block is axially threadedly connected to the screw rod, and the front side of the lifting block passes through the outside of the groove and is fixedly connected to a guide slide, and both ends of the guide slide are respectively slidably connected in two guide slide grooves, and the outer surface of the guide slide is fixedly connected to two connecting rods.
[0006] Furthermore, the direction adjustment mechanism includes a transmission housing, which is fixedly connected to one end of the two connecting rods, and a sleeve is fixedly installed on the bottom of the transmission housing, and a rotating tube is rotatably connected to the sleeve through a limiting swivel, and the bottom end of the rotating tube passes through the outside of the sleeve and is fixedly connected to a sound collecting shell sleeve that is interconnected, and the sound-generating device is fixedly installed inside the sound collecting shell sleeve, and a driven bevel gear ring is fixedly connected to the surface of the rotating tube and located above the sleeve, and a second motor is fixedly installed on the left side of the transmission housing, and the output shaft of the second motor passes through the inside of the transmission housing and is fixedly connected to an active bevel gear that matches the driven bevel gear ring.
[0007] Furthermore, a third motor is fixedly installed on the top of the transmission shell, and an output shaft of the third motor passes through the interior of the transmission shell and is fixedly connected to a heat dissipation fan. Dustproof nets are installed on the top of the transmission shell and on both the front and rear sides corresponding to the third motor.
[0008] Furthermore, a rolling bearing is fixedly installed at the bottom of the inner wall of the groove, and one end of the screw rod passes through the interior of the rolling bearing and is movably connected thereto.
[0009] Furthermore, movable wheels are fixedly installed at the four corners of the bottom of the base, and the movable wheels are universal wheels with foot brakes.
[0010] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0011] The utility model can fix the sound-generating device inside the sound-collecting shell sleeve. According to the demand of the sound propagation height, the first motor can be turned on, so that its output shaft drives the screw to rotate, so that the lifting block threaded thereon moves vertically under the limit of the guide slide and the guide slide groove, thereby driving the sound-generating device to move vertically. According to the demand of the sound propagation direction, the second motor can be controlled to be turned on, so that its output shaft drives the active bevel gear to rotate, and the driven bevel gear ring meshed therewith can drive the rotating tube to rotate under the connection of the sleeve and the limit swivel ring, thereby driving the sound-generating device to rotate, and then realize the adjustment. When the sound-generating device is in the working state, the third motor can be used to drive the heat dissipation fan to rotate, and air cooling and heat dissipation can be performed from above to improve practicality. The sound directional propagation device has a reasonable structural design and is easy to use. When the sound is directional propagated, the height and direction of the sound generator can be automatically adjusted without too much manual operation. The motor drive can not only realize multiple adjustments, but also ensure the adjustment accuracy. It has high efficiency and excellent practicality, thereby fully meeting the needs of directional propagation of sound. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0013] Figure 2 It is a three-dimensional structural schematic diagram of the height adjustment mechanism of the utility model;
[0014] Figure 3 It is a structural cross-sectional view of the direction adjustment mechanism of the utility model.
[0015] In the figure: 1 base, 2 height adjustment mechanism, 21 vertical plate, 22 groove, 23 guide slide, 24 first motor, 25 screw, 26 lifting block, 27 guide slide, 28 connecting rod, 29 rolling bearing, 3 direction adjustment mechanism, 31 transmission shell, 32 sleeve, 33 limit swivel, 34 rotating tube, 35 sound collecting shell, 36 driven bevel gear ring, 37 second motor, 38 driving bevel gear, 39 third motor, 310 heat dissipation fan, 311 dustproof net, 4 sound generating device, 5 moving wheel. DETAILED DESCRIPTION
[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0017] See also Figure 1-3 A sound directional propagation device includes a base 1, a height adjustment mechanism 2, a direction adjustment mechanism 3 and a sound-generating device 4. The height adjustment mechanism 2 is fixedly connected to the right side of the top of the base 1, the direction adjustment mechanism 3 is fixedly connected to the moving end of the height adjustment mechanism 2, and the sound-generating device 4 is fixedly installed on the direction adjustment mechanism 3 by bolts. The sound-generating device 4 can adopt some household or commercial sound-generating equipment, such as speakers, or some ultrasonic sounders used for surveying and mapping.
[0018] Specifically, the height adjustment mechanism 2 includes a vertical plate 21, which is fixedly connected to the right side of the top of the base 1. A groove 22 is provided on the front side of the vertical plate 21, and guide grooves 23 are provided on the left and right sides of the vertical plate 21. A first motor 24 is fixedly installed at the position of the top of the vertical plate 21 corresponding to the groove 22. The output shaft of the first motor 24 passes through the inside of the groove 22 and is fixedly connected to a screw rod 25. A lifting block 26 is axially threadedly connected to the screw rod 25. The front side of the lifting block 26 passes through the outside of the groove 22 and is fixedly connected to a guide slide 27. The two ends of the guide slide 27 are respectively slidably connected in the two guide grooves 23. Two connecting rods 28 are fixedly connected to the outer surface of the guide slide 27. The first motor 24 can drive the screw rod 25 to rotate, and through the threaded connection between the screw rod and the lifting block 26 and the limit, the sound device 4 can be driven to move vertically. At the same time, the first motor 24 adopts a stepping motor. Every time its output shaft rotates one circle, the moving distance of the sound device 4 in the vertical direction can be calculated, thereby realizing accurate height adjustment.
[0019] Specifically, the direction adjustment mechanism 3 includes a transmission housing 31, which is fixedly connected to one end of the two connecting rods 28. A sleeve 32 is fixedly installed at the bottom of the transmission housing 31. A rotating tube 34 is rotatably connected to the sleeve 32 through a limiting swivel 33. The bottom end of the rotating tube 34 passes through the outside of the sleeve 32 and is fixedly connected to a sound collecting shell 35 that is interconnected with the sleeve 32. The sound generating device 4 is fixedly installed inside the sound collecting shell 35. A driven bevel gear ring 36 is fixedly connected to the surface of the rotating tube 34 and located above the sleeve 32. The second motor 37, the output shaft of the second motor 37 passes through the interior of the transmission housing 31 and is fixedly connected with a driving bevel gear 38 adapted to the driven bevel gear ring 36. The second motor 37 can drive the driving bevel gear 38 to rotate, thereby driving the driven bevel gear ring 36 meshing therewith to rotate. At the same time, the second motor 37 adopts a stepping motor. By controlling the rotation degree of its output shaft and calculating the transmission ratio between the two gears, it can be known that every time the driving bevel gear 38 rotates one circle, the degree of rotation of the lower sound collecting shell 35 can be obtained, thereby realizing precise direction adjustment.
[0020] Specifically, a third motor 39 is fixedly installed on the top of the transmission shell 31, and the output shaft of the third motor 39 passes through the inside of the transmission shell 31 and is fixedly connected with a heat dissipation fan 310. A dustproof net 311 is installed on the top of the transmission shell 31 and on the front and rear sides corresponding to the third motor 39. When the sound-generating device 4 is in working state, the third motor 39 can be turned on so that its output shaft drives the heat dissipation fan 310 to rotate, and a wind circulation channel is formed through the rotating tube 34 and the dustproof net 311, thereby achieving an air-cooled heat dissipation effect and improving practicality.
[0021] Specifically, a rolling bearing 29 is fixedly installed at the bottom of the inner wall of the groove 22, and one end of the screw 25 passes through the rolling bearing 29 and is movably connected thereto. The rolling bearing 29 can connect and support the bottom end of the screw 25, thereby improving the stability of its rotation.
[0022] Specifically, movable wheels 5 are fixedly installed at the four corners of the bottom of the base 1. The movable wheels 5 are universal wheels with foot brakes. The movable wheels 5 can facilitate the movement of the equipment. In the working state, the foot brake can be stepped on to achieve locking, thereby improving stability.
[0023] The sound directional propagation device has a reasonable structural design and is easy to use. When the sound is directionally propagated, the height and direction of the sound generator can be automatically adjusted without much manual operation. The use of a motor drive can not only achieve multiple adjustments, but also ensure the adjustment accuracy. It has high efficiency and excellent practicality, thereby fully meeting the needs of directional sound propagation.
[0024] When in use, the sound-generating device 4 is fixed inside the sound-collecting shell 35. According to the requirements of the sound propagation height, the first motor 24 can be turned on so that its output shaft drives the screw 25 to rotate, so that the lifting block 26 threaded thereon moves vertically under the limit of the guide slide 27 and the guide slide groove 23, thereby driving the sound-generating device 4 to move vertically. According to the requirements of the sound propagation direction, the second motor 37 can be controlled to be turned on so that its output shaft drives the active bevel gear 38 to rotate, and the driven bevel gear ring 36 meshing therewith can drive the rotating tube 34 to rotate under the connection of the sleeve 32 and the limit swivel 33, thereby driving the sound-generating device 4 to rotate, and then realizing adjustment. When the sound-generating device 4 is in the working state, the third motor 39 can be used to drive the heat dissipation fan 310 to rotate, and air cooling and heat dissipation can be performed from above it to improve practicality.
[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A sound directional propagation device, comprising a base (1), a height adjustment mechanism (2), a direction adjustment mechanism (3) and a sound generating device (4), characterized in that: The height adjustment mechanism (2) is fixedly connected to the right side of the top of the base (1), the direction adjustment mechanism (3) is fixedly connected to the moving end of the height adjustment mechanism (2), and the sound-generating device (4) is fixedly mounted on the direction adjustment mechanism (3) by means of bolts.
2. A sound directional propagation device according to claim 1, characterized in that: The height adjustment mechanism (2) comprises a vertical plate (21), the vertical plate (21) is fixedly connected to the right side of the top of the base (1), a groove (22) is provided on the front side of the vertical plate (21), and guide grooves (23) are provided on the left and right sides of the vertical plate (21), a first motor (24) is fixedly installed at a position corresponding to the groove (22) on the top of the vertical plate (21), an output shaft of the first motor (24) passes through the inside of the groove (22) and is fixedly connected to a screw rod (25), a lifting block (26) is axially threadedly connected to the screw rod (25), the front side of the lifting block (26) passes through the outside of the groove (22) and is fixedly connected to a guide slide (27), two ends of the guide slide (27) are respectively slidably connected in two guide grooves (23), and the outer surface of the guide slide (27) is fixedly connected to two connecting rods (28).
3. A sound directional propagation device according to claim 2, characterized in that: The direction adjustment mechanism (3) comprises a transmission housing (31), wherein the transmission housing (31) is fixedly connected to one end of two connecting rods (28); a sleeve (32) is fixedly installed at the bottom of the transmission housing (31); a rotating tube (34) is rotatably connected to the sleeve (32) via a limit swivel (33); the bottom end of the rotating tube (34) passes through the outside of the sleeve (32) and is fixedly connected to a sound collecting shell (35) which is in communication with the sleeve; the sound generating device (4) is fixedly installed inside the sound collecting shell (35); a driven bevel gear ring (36) is fixedly connected to the surface of the rotating tube (34) and located above the sleeve (32); a second motor (37) is fixedly installed on the left side of the transmission housing (31); an output shaft of the second motor (37) passes through the inside of the transmission housing (31) and is fixedly connected to a driving bevel gear (38) which matches the driven bevel gear ring (36).
4. A sound directional propagation device according to claim 3, characterized in that: A third motor (39) is fixedly mounted on the top of the transmission housing (31); an output shaft of the third motor (39) passes through the interior of the transmission housing (31) and is fixedly connected to a heat dissipation fan (310); and dustproof nets (311) are mounted on the top of the transmission housing (31) and on both the front and rear sides corresponding to the third motor (39).
5. A sound directional propagation device according to claim 4, characterized in that: A rolling bearing (29) is fixedly mounted at the bottom of the inner wall of the groove (22), and one end of the screw rod (25) penetrates into the rolling bearing (29) and is movably connected thereto.
6. A sound directional propagation device according to claim 5, characterized in that: Moving wheels (5) are fixedly mounted at the four corners of the bottom of the base (1), and the moving wheels (5) are universal wheels with foot brakes.