Sound post with adjustable horn angle

Abstract

The utility model provides a sound post with an adjustable horn angle, which comprises a shell, a horn unit arranged in the shell, a mounting channel arranged on the front wall of the shell, an opening end of the horn unit accommodated in the mounting channel, the horn unit comprises a fixed horn and a movable horn which are arranged up and down, the fixed horn is fixedly connected with the shell, and the movable horn is fixedly connected with the shell. The upper end of the movable horn is hinged to the lower end of the fixed horn, and a movable gap is reserved between the lower end face of the movable horn and the lower end face of the installation channel. An adjusting mechanism is arranged on the side wall of the shell, the operating end of the adjusting mechanism is exposed out of a back plate of the shell, and the driving end of the adjusting mechanism is connected with the movable loudspeaker and used for driving the movable loudspeaker to rotate front and back. According to the sound post with the adjustable horn angle, sound directivity adjustment is achieved by adjusting the angle of the horn, and the sound post is simple in structure and convenient to adjust.

Description

Technical Field

[0001] This utility model relates to the field of sound columns, and more specifically, to a sound column with an adjustable speaker angle. Background Technology

[0002] A speaker is a device that converts electrical signals back into sound signals, and the fidelity of the sound reproduction is an important standard for evaluating speaker performance. An active speaker is an audio system with a built-in power amplifier (i.e., amplifier), integrating the power amplifier and the speaker sound-producing system into one unit. It can be directly paired with common audio sources (such as portable music players, CD players, DVD players, VCRs, etc.) to form a complete audio system.

[0003] A sound column is a type of speaker enclosure with a columnar structure, typically consisting of multiple driver units arranged vertically, all pointing in the same direction. Furthermore, the angles of each driver unit are fixed and cannot be adjusted, resulting in a fixed directivity of the sound from the speaker units, limiting its applicability. Current sound column structures typically achieve this by changing the overall tilt angle of the sound column, which usually requires an adjustment bracket, significantly increasing the cost. Summary of the Invention

[0004] To overcome at least one of the defects in the prior art, this utility model provides a speaker column with an adjustable speaker angle, which achieves sound directionality adjustment by adjusting the speaker angle, and has a simple structure and is easy to adjust.

[0005] This utility model provides a speaker column with adjustable horn angle: it includes a housing, in which a horn unit is disposed. An installation channel is provided on the front wall of the housing, and the open end of the horn unit is accommodated in the installation channel. The horn unit includes a fixed horn and a movable horn disposed vertically. The fixed horn is fixedly connected to the housing, and the upper end of the movable horn is hinged to the lower end of the fixed horn, with a clearance between the lower end face of the movable horn and the lower end face of the installation channel. An adjustment mechanism is provided on the side wall of the housing, the operating end of which is exposed on the back plate of the housing, and the driving end of the adjustment mechanism is connected to the movable horn to drive the movable horn to rotate back and forth.

[0006] Compared with the prior art, the speaker column with adjustable horn angle of this utility model has the following advantages:

[0007] The speaker column structure of this utility model divides the speaker unit into a fixed speaker part and a movable speaker part. The directionality and distance of the sound can be adjusted by adjusting the tilt angle of the movable speaker to better meet the needs of different scenarios. Specifically, a corresponding adjustment mechanism is set in the housing of the speaker column, and the operating end of the adjustment mechanism extends out of the back plate of the housing. The movable speaker can be driven to rotate back and forth by manually operating the operating end on the back side of the housing. This structure is not only easy to operate, but the operating end is located on the rear side wall of the housing, and it has little impact on the overall appearance of the speaker column.

[0008] Furthermore, the adjustment mechanism includes a lifting plate and a drive assembly. The lifting plate is vertically slidably connected to the inner wall of the housing. An elongated oblique through-hole is provided at one end of the lifting plate near the movable horn. The oblique through-hole extends from top to bottom and slopes from front to back. A guide rod is provided on the outer wall of the movable horn, and the guide rod slides within the oblique through-hole. When the drive assembly drives the lifting plate to move up and down, the guide rod, guided by the oblique through-hole, causes the movable horn to rotate backward or forward. In the above structure, the forward and backward rotation adjustment of the movable horn is achieved through the lifting plate, oblique through-hole, and guide rod structure. The structure is simple and the adjustment is convenient.

[0009] Furthermore, the drive assembly includes a drive gear and a rotating shaft. The rotating shaft is rotatably mounted on the back plate along its axis. The drive gear is connected to the inner end of the rotating shaft, and a manual knob is connected to the outer end of the rotating shaft. A rack extending vertically is provided on the side wall of the lifting plate, and the rack meshes with the drive gear. In the above structure, the lifting plate's movement adjustment is achieved through the gear and rack structure, resulting in smooth and reliable driving.

[0010] As an improvement, the lifting plate includes a first connecting plate and a second connecting plate arranged at right angles. The first connecting plate is parallel to the back plate, and the rack is formed on the side wall of the first connecting plate away from the second connecting plate. The second connecting plate extends towards the movable horn, and the oblique through hole is opened at the upper end of the second connecting plate. In the above improved structure, the lifting plate includes two right-angled connecting plates, which facilitates sliding connection with the back of the housing and enables guiding linkage with the movable horn, simplifying the drive structure.

[0011] In a further improvement, the first connecting plate has a vertically extending through hole. Two positioning bolts connected to the back plate are movably inserted through the vertical through hole, and the inner walls of the bolt heads of the two positioning bolts slide against the outer wall of the first connecting plate. A positioning assembly is provided between the first connecting plate and the inner wall of the back plate. In the above improved structure, the sliding connection between the first connecting plate and the back plate is simple, and the positioning assembly can limit the corresponding height position, thereby ensuring the stability of the movable horn after it is adjusted to a set angle.

[0012] Furthermore, the positioning component includes at least one ball screw, which passes through the back plate. The first connecting plate is provided with a plurality of positioning holes evenly distributed vertically. The ball of the ball screw abuts against the side of the first connecting plate near the back plate and can be positioned at any of the positioning holes.

[0013] Other improvements and advantages of this invention will be set forth in the detailed description that follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures particularly pointed out in the description and drawings. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the speaker column with adjustable horn angle according to this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the adjustable speaker column of this utility model from another angle;

[0016] Figure 3 This is a schematic diagram of the connection structure between the movable horn, the adjustment mechanism, and the housing in this utility model.

[0017] Figure 4 This is another schematic diagram of the connection structure between the movable horn, the adjustment mechanism, and the housing in this utility model.

[0018] Figure 5 This is a schematic diagram of the connection structure between the adjustment mechanism and the movable horn in this utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Housing; 2. Mounting channel; 3. Fixed horn; 4. Movable horn; 5. Back plate; 6. Angled through hole; 7. Guide rod; 8. Drive gear; 9. Lifting plate; 10. Manual knob; 11. Rack; 12. First connecting plate; 13. Second connecting plate; 14. Vertical through hole; 15. Positioning bolt; 16. Ball screw; 17. Positioning round hole; 18. Fixing bracket; 19. Fixing plate. Detailed Implementation

[0021] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0022] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0023] In the embodiments of this application, unless otherwise expressly specified and limited, the first feature at the "upper end" or "lower end" of the second feature may be in direct contact with the first feature, or indirect contact between the first and second features through an intermediate medium.

[0024] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0025] See Figures 1-5 As shown in the figure, this application discloses a speaker column with adjustable horn angle, including a housing 1. Preferably, the housing 1 is a square column structure. A speaker unit is disposed inside the housing 1. An installation channel 2 is provided on the front wall of the housing 1, and the open end of the speaker unit is accommodated in the installation channel 2. The speaker unit includes a fixed speaker 3 and a movable speaker 4 arranged from top to bottom. The fixed speaker 3 is fixedly connected to the housing 1. The upper end of the movable speaker 4 is hinged to the lower end of the fixed speaker 3, and an movable gap is left between the lower end face of the movable speaker 4 and the lower end face of the installation channel 2. In addition, an adjustment mechanism is provided on the side wall of the housing 1. The operating end of the adjustment mechanism is exposed on the back plate 5 of the housing 1. The driving end of the adjustment mechanism is connected to the movable speaker 4. By operating the operating end on the rear side of the housing 1, the movable speaker 4 can be driven to rotate in the front-back direction to adjust the directionality of the speaker sound and improve the applicable scenarios.

[0026] It is important to emphasize that in the above structure, the movable horn 4 can be a single horn body or a component structure consisting of two or more horn bodies connected together. That is, multiple horn bodies can be driven to rotate simultaneously back and forth via an adjustment mechanism. In this embodiment, preferably, the horn unit includes three horn bodies. The uppermost horn body is a fixed horn 3, and the two lower horn bodies are fixed together as a single movable horn 4. This single movable horn 4 rotates back and forth under the action of the adjustment mechanism to adjust the sound directivity. Similarly, the fixed horn can also be a single horn body or a horn assembly consisting of two or more horn bodies combined together.

[0027] Specifically, in this embodiment, see Appendix Figure 3 , 4 5. The adjustment mechanism includes a lifting plate 9 and a drive assembly. The lifting plate 9 is vertically slidably connected to the inner wall of the housing 1. The end of the lifting plate 9 near the movable horn 4 is provided with a long strip-shaped oblique through hole 6. The oblique through hole 6 extends from top to bottom and is inclined from front to back. The outer wall of the movable horn 4 is provided with a guide rod 7. The guide rod 7 is slidably engaged in the oblique through hole 6. When the drive assembly drives the lifting plate 9 to move up and down, under the guidance of the oblique through hole 6, the guide rod 7 drives the movable horn 4 to rotate backward or forward.

[0028] The drive assembly includes a drive gear 8 and a rotating shaft. The rotating shaft is rotatably mounted on the back plate 5 along its axis. The drive gear 8 is connected to the inner end of the rotating shaft, and a manual knob 10 is connected to the outer end of the rotating shaft. The manual knob 10 is a plum blossom-shaped knob for easy operation. A rack 11 extending vertically is provided on the side wall of the lifting plate 9, and the rack 11 meshes with the drive gear 8. By rotating the manual knob 10, the drive gear 8 is driven to rotate, thereby driving the rack 11 and the lifting plate 9 to move up and down, ultimately realizing the forward and backward rotation of the movable horn 4 to adjust the tilt angle, that is, to change the directionality and distance of the sound. In this structure, a connecting hole is provided on the back plate 5, and a bearing is installed in the connecting hole. The rotating shaft is installed in the inner hole of the bearing to facilitate the flexible rotation of the rotating shaft.

[0029] For more details, please see the appendix. Figure 5 The lifting plate 9 in the above structure includes a first connecting plate 12 and a second connecting plate 13 distributed at right angles. The first connecting plate 12 is parallel to the back plate 5, and a toothed rack 11 is formed on the side wall of the first connecting plate 12 away from the second connecting plate 13. The second connecting plate 13 extends toward the movable horn 4, that is, the second connecting plate 13 is parallel to the side plate of the housing 1, and the oblique through hole 6 is opened at the upper end of the second connecting plate 13.

[0030] In addition, in the above structure, in order to increase the stability of the linkage structure between the movable horn 4 and the lifting plate 9, a fixing frame 18 is connected to the rear side wall of the second horn body. A fixing plate 19 parallel to the second connecting plate 13 is provided on the fixing frame 18. One end of the guide rod 7 is connected to the fixing plate 19, and the other end of the guide rod 7 is movably inserted into the oblique through hole 6. A positioning baffle is provided at the end of the guide rod 7 that passes through the oblique through hole 6 on the second connecting plate 13 to prevent the guide rod 7 from disengaging from the oblique through hole 6 when the lifting plate 9 moves up and down.

[0031] In this embodiment, a vertical through hole 14 extending vertically is provided on the first connecting plate 12. Two positioning bolts 15 connected to the back plate 5 are movably inserted in the vertical through hole 14, and the inner wall of the bolt head of the two positioning bolts 15 slides against the outer wall of the first connecting plate 12. A positioning component is provided between the first connecting plate 12 and the inner wall of the back plate 5 for positioning the position of the first connecting plate 12 after it is moved, thereby driving the movable horn 4 to be positioned at the designed angle position.

[0032] Preferably, the positioning component includes at least one ball screw 16, which passes through the back plate 5 and is fixedly connected to it. The first connecting plate 12 has multiple vertically evenly distributed positioning holes 17 on its side near the back plate 5. The steel balls of the ball screw 16 abut against the side of the first connecting plate 12 near the back plate 5 and can be positioned at any of the positioning holes 17. In this embodiment, there are two ball screws 16, spaced vertically apart. The steel ball ends of the two ball screws 16 abut against two corresponding positioning holes 17 on the first connecting plate 12, ensuring that the lifting plate 9 can be stably positioned on the rear wall of the housing 1, thus better ensuring that the movable horn 4 remains stable after angle adjustment. In this structure, the vertically arranged positioning holes 17 and the rack 11 are located on both sides of the vertical through hole 14, and each positioning hole 17 is a round through hole, facilitating processing and integral stamping.

[0033] For others, see Appendix Figure 4 , 5 In this embodiment, the second connecting plate 13 has a right-angled triangular structure, with one right-angled side connected to the side wall of the first connecting plate 12, and the other right-angled side flush with the top surface of the first connecting plate 12. An oblique through-hole 6 is located on the second connecting plate 13 near the oblique side. Here, the lower part of the second connecting plate 13 has an oblique structure, which can prevent the movable horn 4 from colliding and interfering with the second connecting plate 13 when it rotates backward.

[0034] In the description of the embodiments of this application, it should be noted that the terms "upper" and "lower" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0035] In the description of this application, the references to terms such as "this embodiment," "some embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0036] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A sound post with adjustable horn angle, comprising a shell (1), a horn unit is arranged in the shell (1), characterized in that: The front wall of the shell (1) is provided with a mounting channel (2), the open end of the loudspeaker unit is contained in the mounting channel (2), the loudspeaker unit comprises a fixed loudspeaker (3) and a movable loudspeaker (4) arranged in an up-down mode, the fixed loudspeaker (3) is fixedly connected with the shell (1), the upper end of the movable loudspeaker (4) is hingedly connected with the lower end of the fixed loudspeaker (3), and an active gap is left between the lower end surface of the movable loudspeaker (4) and the lower end surface of the mounting channel (2); the side wall of the shell (1) is provided with an adjusting mechanism, the operating end of the adjusting mechanism is exposed to the back plate (5) of the shell (1), and the driving end of the adjusting mechanism is connected with the movable loudspeaker (4) to drive the movable loudspeaker (4) to rotate forward and backward.

2. The adjustable horn angle sound post of claim 1, wherein: The adjusting mechanism comprises a lifting plate (9) and a driving assembly, the lifting plate (9) is slidably connected to the inner wall of the shell (1) in a vertical mode, one end of the lifting plate (9) close to the movable loudspeaker (4) is provided with an elongated inclined through hole (6), the inclined through hole (6) extends from top to bottom and is inclined from front to back, the outer wall of the movable loudspeaker (4) is provided with a guide pull rod (7), the guide pull rod (7) is slidably fitted in the inclined through hole (6), when the driving assembly drives the lifting plate (9) to move up and down, under the guidance of the inclined through hole (6), the guide pull rod (7) drives the movable loudspeaker (4) to rotate backward or forward.

3. The adjustable horn angle post of claim 2, wherein: The driving assembly comprises a driving gear (8) and a rotating shaft, the rotating shaft is rotatably arranged on the back plate (5) along its axis, the driving gear (8) is connected to the inner end of the rotating shaft, and a manual knob (10) is connected to the outer end of the rotating shaft; the side wall of the lifting plate (9) is provided with a vertical rack (11) extending in a vertical mode, and the rack (11) is engaged with the driving gear (8).

4. The adjustable horn angle post of claim 3, wherein: The lifting plate (9) comprises a first connecting plate (12) and a second connecting plate (13) arranged in a right angle mode, the first connecting plate (12) is parallel to the back plate (5), the rack (11) is formed on the side wall of the first connecting plate (12) away from the second connecting plate (13); the second connecting plate (13) extends toward the side of the movable loudspeaker (4), and the inclined through hole (6) is arranged at the upper end of the second connecting plate (13).

5. The adjustable horn angle post of claim 4, wherein: The first connecting plate (12) is provided with a vertical through hole (14) extending in a vertical mode, two positioning bolts (15) connected to the back plate (5) are movably arranged in the vertical through hole (14), the inner wall of the bolt head of the two positioning bolts (15) is in sliding abutment with the outer wall of the first connecting plate (12), and a positioning assembly is arranged between the first connecting plate (12) and the inner wall of the back plate (5).

6. The adjustable horn angle post of claim 5, wherein: The positioning assembly comprises at least one wave screw (16) which is arranged on the back plate (5), and the first connecting plate (12) is provided with a plurality of vertically and uniformly distributed positioning round holes (17) on the side close to the back plate (5), and the steel ball of the wave screw (16) is in abutment with the side of the first connecting plate (12) close to the back plate (5) and can be positioned at any one of the positioning round holes (17).

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