Sound box with adjustable horn

Abstract

The utility model provides a loudspeaker box with an adjustable horn, comprising a housing, the front side of the housing is provided with a front frame, the housing is internally provided with a loudspeaker unit, the outer side wall of the front frame is recessed inwards to form an installation cavity, the bottom of the installation cavity is provided with an installation through hole, and the horn mouth of the loudspeaker unit extends outwards to be assembled in the installation through hole; a mounting cavity is arranged in the loudspeaker unit, a horn is arranged in the mounting cavity, a hollow connecting pipe extending backwards is arranged at the inner end of the horn, the connecting pipe is rotatably assembled in a sound outlet channel of the loudspeaker unit, a first connecting part is arranged at the outer end of the horn, and a second connecting part and a third connecting part which are staggered with each other are arranged on the inner wall of the mounting cavity. The first connecting part is connected to the second connecting part; and in the second use state, the first connecting part is connected to the third connecting part. According to the loudspeaker box with the adjustable horn disclosed by the utility model, the loudspeaker box type does not need to be completely replaced when use scenes are different, and only the angle of the horn is switched, so that the universality of the loudspeaker box is improved, and resource waste is avoided.

Description

Technical Field

[0001] This utility model relates to the field of speaker technology, and more specifically, to a horn-adjustable speaker. 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] In related prior art, such as the coaxial loudspeaker and coaxial speaker enclosure disclosed in patent CN221531678U, a tweeter horn is connected to the horn frame of the woofer unit, and the inner end of the tweeter horn extends into the woofer channel. In this speaker enclosure structure, the tweeter and the loudspeaker unit are pre-assembled together before being assembled into the enclosure, and once installed into the speaker enclosure, the angle of the tweeter horn is fixed and cannot be adjusted.

[0004] Currently, some speakers are used in different configurations. For everyday use, speakers are typically placed vertically, while for stage performances, they are placed horizontally. In existing technology, speakers for everyday use and those for stage performances are generally separate structures, chosen based on the specific application scenario. In other words, existing speakers lack versatility for different usage scenarios, resulting in a certain degree of resource waste. Utility Model Content

[0005] To overcome at least one of the defects in the prior art, this utility model provides a horn-adjustable speaker that does not require a complete change of speaker type when used in different scenarios; only the horn angle needs to be switched, thereby improving the speaker's versatility and avoiding resource waste.

[0006] This utility model provides a horn-adjustable speaker: including a housing, a front frame provided on the front side of the housing, a speaker unit provided inside the housing, a mounting cavity formed by the recessed outer wall of the front frame, a mounting through hole provided at the bottom of the mounting cavity, and the horn of the speaker unit extending outward to be fitted into the mounting through hole; a horn is provided inside the mounting cavity, a hollow and rearwardly extending connecting tube is provided at the inner end of the horn, the connecting tube is rotatably fitted into the sound outlet channel of the speaker unit, a first connecting part is provided at the outer end of the horn, and a second connecting part and a third connecting part are provided on the inner wall of the mounting cavity, which are staggered from each other; in a first use state, the first connecting part is connected to the second connecting part; in a second use state, the first connecting part is connected to the third connecting part.

[0007] Compared with the prior art, the horn-adjustable speaker of this utility model has the following advantages:

[0008] Compared with the prior art, the speaker structure of this utility model connects and fixes the outer end of the horn to the front frame of the shell, and has two mounting parts pre-set on the front frame. The horn can be fixed to different mounting parts according to the change of usage scenario. That is, the entire speaker structure can switch between different usage scenarios by simply changing the mounting angle of the horn, without replacing the entire speaker, reducing the cost of use and improving the versatility of the speaker structure.

[0009] As an improvement, the first connecting part includes two connecting posts symmetrically arranged along the axis of the connecting pipe, the second connecting part includes two first connecting seats symmetrically arranged along the axis of the connecting pipe, and the third connecting part includes two second connecting seats symmetrically arranged along the axis of the connecting pipe. Each of the two connecting posts is provided with a first screw for connecting to the two first connecting seats or the two second connecting seats respectively.

[0010] In a further improvement, the upper ends of the two first connecting seats and the two second connecting seats are all recessed and formed with conical countersunk holes. The lower ends of the two connecting columns are first conical columns that match the conical countersunk holes. The bottom wall of each conical countersunk hole is provided with a first threaded hole for the first screw to be connected.

[0011] In a further improvement, an installation step is provided inside the sound outlet channel, and a positioning boss that abuts against the installation step is provided on the outer wall of the connecting pipe.

[0012] In a further improvement, the inner wall of the lower end of the horn is provided with several circumferentially distributed mounting through holes that extend along the axial direction of the connecting pipe. One end of each mounting through hole extends to the positioning boss, and a second screw connected to the mounting step passes through each mounting through hole.

[0013] In a further improvement, the lower end of the sound outlet channel is provided with a tapered guide hole, and the lower end of the connecting pipe is a second tapered column that can rotate with the tapered guide hole.

[0014] In a further improvement, the lower ends of the two first connecting seats and the two second connecting seats are provided with second threaded holes, and the outer edge of the speaker unit's horn is provided with third screws that are respectively connected to each of the second threaded holes.

[0015] 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

[0016] Figure 1 This is a three-dimensional structural diagram of the horn-adjustable speaker of this utility model in its first usage state;

[0017] Figure 2 This is a three-dimensional structural diagram of the second usage state of the horn-adjustable speaker of this utility model.

[0018] Figure 3 This is a schematic diagram of the horn structure in this utility model;

[0019] Figure 4 for Figure 2 A schematic diagram of the horn-adjustable speaker without a horn installed.

[0020] Figure 5 This is a structural diagram showing the connection between the front cover and the speaker unit in this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Housing; 2. Front frame; 3. Speaker unit; 4. Mounting cavity; 5. Horn; 6. Connecting tube; 7. Connecting post; 8. First connecting seat; 9. Second connecting seat; 10. First screw; 11. Mounting step; 12. Positioning boss; 13. Second screw; 14. Second tapered post; 15. Third screw. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] 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.

[0026] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] See Figures 1-5As shown in the figure, this application discloses a horn-adjustable speaker, including a housing 11. The housing 11 is generally made of plastic and manufactured by a one-piece injection molding process. A front cover is detachably connected to the front of the housing 1. The front cover generally includes a front frame 2 and a decorative panel (not installed in the figure). The front frame 2 is connected to the front end of the housing 1 by screws around its perimeter, and a speaker unit 3 is connected to the inner cavity of the housing 1. In this embodiment, a mounting cavity 4 is formed by recessing the outer wall of the front frame 2. A mounting through hole is opened at the bottom of the mounting cavity 4, and the horn of the speaker unit 3 extends outward to fit into the mounting through hole. A horn 5 is provided in the mounting cavity 4, and the inner cavity of the horn 5... The horn 5 is provided with a hollow, rearward-extending connecting pipe 6, which is rotatably mounted in the sound outlet channel of the speaker unit 3. The outer end of the horn 5 is provided with a first connecting part, and the inner wall of the mounting cavity 4 is provided with a second connecting part and a third connecting part that are staggered from each other. In the first use state, that is, in daily use, the first connecting part is connected to the second connecting part; in the second use state, that is, in stage performance use, the first connecting part is connected to the third connecting part. The entire speaker structure can achieve different usage scenarios simply by changing the installation angle of the horn 5, without the need to replace the entire speaker, reducing the cost of use and improving the versatility of the speaker structure.

[0028] More specifically, the above structure includes two connecting posts 7 symmetrically arranged along the axis of the connecting pipe 6 in the first connecting part, two connecting seats 8 symmetrically arranged along the axis of the connecting pipe 6 in the second connecting part, and two connecting seats 9 symmetrically arranged along the axis of the connecting pipe 6 in the third connecting part. Each connecting post 7 is provided with a first screw 10 for connecting to the two first connecting seats 8 or the two second connecting seats 9 respectively. The first screw 10 is used to fix the horn 5, which is convenient for installation and easy for switching the installation position of the horn 5 later to adjust the angle. Users can replace it themselves. First, remove the decorative panel to see the first screw 10 connecting the horn 5 to the housing 1. Use a screwdriver to unscrew the first screw 10 and rotate the horn 5. It is simple and convenient.

[0029] In this embodiment, the line connecting the two first connecting seats 8 is perpendicular to the line connecting the two second connecting seats 9. That is, the two first connecting seats 8 and the two second connecting seats 9 are distributed circumferentially, and any adjacent first connecting seats 8 and second connecting seats 9 are distributed at a 90-degree angle.

[0030] Furthermore, to improve the stability of the connection between the horn 5 and the housing 1, in this embodiment, conical countersunk holes are formed at the upper ends of the two first connecting seats 8 and the two second connecting seats 9. The lower ends of the two connecting posts 7 are first conical posts that match the conical countersunk holes. Each conical countersunk hole has a first threaded hole on its bottom wall for connection by the first screw 10. In this structure, the fit between the first conical post and the conical countersunk hole makes the connection between the outer end of the horn 5 and the housing 1 more secure, and the guide of the conical surface during assembly can better ensure the alignment of the first screw 10 and the first threaded hole.

[0031] Furthermore, to ensure a more stable fit between the inner end of the horn 5 and the speaker unit 3, a mounting step 11 is provided within the sound outlet channel, and a positioning boss 12 abutting against the mounting step 11 is provided on the outer wall of the connecting pipe 6. This structure limits the front-to-back position of the horn 5 during installation. Additionally, several circumferentially distributed mounting through holes extending axially along the connecting pipe 6 are provided on the inner sidewall of the lower end of the horn 5. One end of each mounting through hole extends to the boss, and a second screw 13 connected to the mounting step 11 passes through each mounting through hole.

[0032] In this embodiment, there are two mounting through holes, which are symmetrically arranged along the central axis of the connecting pipe 6. Similarly, a tapered guide hole is provided at the lower end of the sound outlet channel, and the lower end of the connecting pipe 6 is a second tapered column 14 that rotatably engages with the tapered guide hole. The tapered fitting structure can play a guiding role, and after the connecting pipe 6 and the sound outlet channel are fitted in place circumferentially, the tapered mating surface has a certain locking effect, improving the stability of the connection structure.

[0033] On the other hand, in this embodiment, a second threaded hole is provided at the lower end of both first connecting seats 8 and both second connecting seats 9, and a third screw 15 is provided on the outer edge of the speaker unit 3, which is respectively connected to each of the second threaded holes, so as to realize the connection and fixation between the speaker unit 3 and the front frame 2.

[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 horn-adjustable speaker, comprising a housing (1), a front frame (2) provided on the front side of the housing (1), and a speaker unit (3) provided inside the housing (1), characterized in that: The outer side wall of the front frame (2) is recessed to form a mounting cavity (4). The bottom of the mounting cavity (4) is provided with a mounting through hole. The horn of the speaker unit (3) extends outward to be fitted into the mounting through hole. A horn (5) is provided in the mounting cavity (4). The inner end of the horn (5) is provided with a hollow and rearward-extending connecting tube (6). The connecting tube (6) is rotatably fitted into the sound outlet channel of the speaker unit (3). The outer end of the horn (5) is provided with a first connecting part. The inner wall of the mounting cavity (4) is provided with a second connecting part and a third connecting part that are staggered from each other. In the first use state, the first connecting part is connected to the second connecting part. In the second use state, the first connecting part is connected to the third connecting part.

2. The horn-adjustable speaker according to claim 1, characterized in that: The first connecting part includes two connecting posts (7) symmetrically arranged along the axis of the connecting tube (6), the second connecting part includes two first connecting seats (8) symmetrically arranged along the axis of the connecting tube (6), and the third connecting part includes two second connecting seats (9) symmetrically arranged along the axis of the connecting tube (6). Each of the two connecting posts (7) is provided with a first screw (10) for connecting to the two first connecting seats (8) or the two second connecting seats (9) respectively.

3. The horn-adjustable speaker according to claim 2, characterized in that: The upper ends of the two first connecting seats (8) and the two second connecting seats (9) are all recessed and formed with conical countersunk holes. The lower ends of the two connecting columns (7) are first conical columns that match the conical countersunk holes. The bottom wall of each conical countersunk hole is provided with a first threaded hole for the first screw (10) to connect.

4. The horn-adjustable speaker according to claim 1, characterized in that: An installation step (11) is provided inside the sound outlet channel, and a positioning boss (12) that abuts against the installation step (11) is provided on the outer wall of the connecting pipe (6).

5. The horn-adjustable speaker according to claim 4, characterized in that: The inner wall of the lower end of the horn (5) is provided with a number of circumferentially distributed mounting through holes that extend along the axial direction of the connecting pipe (6). One end of each mounting through hole extends to the positioning boss (12). A second screw (13) connected to the mounting step (11) passes through each mounting through hole.

6. The horn-adjustable speaker according to claim 5, characterized in that: The lower end of the sound outlet channel is provided with a tapered guide hole, and the lower end of the connecting pipe (6) is a second tapered column (14) that can rotate with the tapered guide hole.

7. The horn-adjustable speaker according to claim 2, characterized in that: The lower ends of the two first connecting seats (8) and the two second connecting seats (9) are provided with second threaded holes, and the outer edge of the speaker unit (3) is provided with third screws (15) respectively connected to each of the second threaded holes.

Images