A horn speaker with a rotatable horn

Abstract

A horn speaker with a rotatable horn, comprising a speaker body, a longitudinal support, and a horn with a long-shaped opening on the front. The horn is connected to the speaker body by an audio signal, and the horn is horizontally arranged on the longitudinal support and rotatably connected to the longitudinal support through a rotating mechanism. Due to the rotatable horn structure adopted in the present invention, by rotating the horn to adjust the use angle of the long-shaped opening, it is possible to change the sound field to obtain a personal favorite sound field feeling, and at the same time, it is possible to change the floor space occupied by the horn speaker to suit the use in audio or video rooms of different areas. For example, for an audio or video room with a small area, the horn can be adjusted to a vertical form, thus greatly reducing the horizontal floor space occupied by the horn speaker. Moreover, by adjusting the use angle of the horn, the beauty and appearance of the horn speaker can also be changed, providing more personalized choices for users. The present invention has a novel design, is safe and reliable in use, easy to operate, and can also be disassembled and transported by elevator.

Description

Technical Field

[0001] The present invention relates to the field of audio, and in particular to a horn speaker whose horn can rotate the angle. Background Art

[0002] The horn speaker is a form of speaker with a long history and is still widely used today. The sound of the horn speaker is generated by the diaphragm of the drive head installed at the throat of the horn. Compared with the common cone speakers, the diaphragm has a faster transient response than the cone, the remaining oscillation of the diaphragm is very small, the distortion is low, and the sensitivity is high. Therefore, the sound resolution of the horn speaker is particularly good, the music details are rich, and the texture is charming.

[0003] The common HIFI horn speaker is composed of a cone (paper) disk speaker, a horn speaker, a box body and a frequency divider. Three-way and four-way speakers also have high-frequency and ultra-high-frequency speakers. Among them, the horn speaker is composed of a drive head connected to the horn. Compared with the common cone speakers, it has the characteristics of complex structure, high cost and large volume. Since the lowest cut-off frequency (FO) of the horn is related to three factors: the length, the opening area and the opening perimeter of the horn, reducing the crossover point and letting the horn be responsible for a wider sound frequency band is the key to the good sound of the horn speaker. Therefore, a larger horn is the pursuit of conditional audiophiles, but it is not an easy thing, because this means a larger audio or audio-visual room is needed.

[0004] The existing horns with long-shaped openings such as rectangular, oval, waist-drum-shaped or trapezoidal are mostly used horizontally, which has a wider sound field feeling. However, this large horn speaker system obviously occupies too much floor space for a general home audio room. If the horn is set to be used vertically, the horn opening is wide up and down, which may affect the width of the sound field feeling, but it will be suitable for use in an audio or audio-visual room with a small area. Therefore, if the use angle of the long-shaped opening of the horn is changed, the change of the sound field will be felt. Therefore, on the basis of having a wide sound field feeling, how to design a horn that can freely convert the use angle of the long-shaped opening to obtain a favorite sound field feeling, and reduce the floor space occupied by the horn speaker, and can also be disassembled and transported by elevator is the technical problem that needs to be solved at present. Summary of the Invention

[0005] The purpose of the present invention is to provide a horn speaker whose horn can rotate the angle, which can not only change the sound field, but also reduce the floor space occupied by the speaker, and has different aesthetics and visual effects, aiming at the above-mentioned existing problems and deficiencies.

[0006] The technical solution of the present invention is realized as follows:

[0007] The horn speaker of the present invention capable of rotating an angle is characterized in that it includes a speaker main body, a longitudinal support, and a horn with a long-shaped opening on the front. The horn is connected to the speaker main body through an audio signal, and the horn is horizontally arranged on the longitudinal support and is rotatably connected to the longitudinal support through a rotating mechanism.

[0008] In order to make the structure of the present invention compact, the horn is located above the speaker main body.

[0009] In order to make the structure of the present invention diverse, the rotating mechanism can be set in a variety of different structural forms. It can be: the rotating mechanism includes a turntable fixedly connected to the horn and a number of limiting shafts fixedly connected to the longitudinal support and surrounding the outer circumference of the turntable. Each limiting shaft is respectively provided with a limiting groove at the same position. The turntable is snapped into the limiting groove and can rotate within the space surrounded by the number of limiting shafts; it can also be: the rotating mechanism includes a bearing, the inner ring of the bearing is fixedly connected to the horn through a sleeve, and the outer ring of the bearing is fixedly connected to the longitudinal support; it can also be: the rotating mechanism includes a gear fixedly connected to the horn, and the gear is rotatably connected to the longitudinal support.

[0010] In order to ensure the stable and reliable use position of the horn after rotation, a positioning mechanism is provided on the longitudinal support for cooperating with the rotating mechanism, and the horn is positioned through the positioning mechanism after rotating to the required angle.

[0011] In order to make the structure and setting of the positioning mechanism simple, and facilitate reliable positioning while the horn rotates, the positioning mechanism includes a positioning connecting piece. A number of positioning grooves that can be disengaged and engaged with the positioning connecting piece are annularly arranged at equal intervals on the rotating mechanism. After the horn rotates to the required angle, the horn is positioned through the snap connection between the positioning connecting piece and one of the positioning grooves.

[0012] In order to make the rotation mode of the horn diverse to conveniently meet the usage needs of different users, the horn is rotated by directly pushing the horn by hand to make the rotating mechanism rotate; or, the horn is rotated by a driving mechanism driving the rotating mechanism to rotate.

[0013] In order to make the structure of the present invention diverse and enable different control modes, the driving mechanism can be set in a variety of different structural forms. It can be: the driving mechanism includes a crank and a transmission structure connected to the crank, and the transmission structure is connected to the rotating mechanism; it can also be: the driving mechanism includes a motor and a transmission structure connected to the motor, the transmission structure is connected to the rotating mechanism, and a travel switch is provided on the longitudinal support.

[0014] In order to diversify the structure of the present invention, the transmission structure can be set in a variety of different structural forms, which can be: the transmission structure is a screw, and the screw is meshed with the rotating mechanism; or: the transmission structure is a gear set, and the power output gear of the gear set is meshed with the rotating mechanism; or: the transmission structure includes a gearbox and a screw connected to the gearbox, and the screw is meshed with the rotating mechanism.

[0015] In order to meet the preferences of different consumers, the shape of the long opening of the horn is rectangular, rhombic, oval, waist drum-shaped, trapezoidal or other geometric shapes.

[0016] In order to make the appearance of the horn more beautiful, and the sound emission is uniform and stable, several partitions are provided in the long opening of the horn.

[0017] In order to be able to adjust the speaker to a satisfactory sound quality, a frequency divider is installed on the longitudinal support.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] Since the present invention adopts the structure that the horn can rotate, by rotating the horn to adjust the use angle of its long opening, it can not only change the sound field to obtain the personal favorite sound field feeling, but also change the floor space occupied by the horn speaker to suit the use of different areas of audio or audio-visual rooms. For example, for a small audio or audio-visual room, the horn can be adjusted to a vertical form, thus greatly reducing the horizontal floor space occupied by the horn speaker. Moreover, by adjusting the use angle of the horn, the beauty and visual perception of the horn speaker can also be changed, providing more personalized choices for users. At the same time, the present invention realizes the rotation of the horn through the structure of arranging a rotating mechanism between the horn and the longitudinal support. The rotating mechanism can reduce the resistance when the horn rotates, which is beneficial to the rotation operation of the horn, making the rotation more flexible, smooth and stable. And the rotation of the horn can be realized either by directly pushing the horn by hand or by the drive of the drive mechanism. By adopting different control methods, not only the structure of the present invention is diversified, but also it is beneficial for consumers to choose and purchase corresponding products according to their favorite control methods. Moreover, when the rotation of the horn is realized by directly pushing the horn by hand, a positioning mechanism can be set at this time. When the horn rotates to the required angle, its position is fixed through this positioning mechanism, thus preventing the horn from rotating back or over-rotating, ensuring the stable and reliable use of the horn. In addition, several partitions can be provided in the long opening of the horn, which is beneficial to the uniform diffusion of sound, the stability of sound, and the improvement of the beauty of the horn. The design of the present invention is novel, safe and reliable in use, easy to operate, and can also be disassembled and transported by elevator.

[0020] The present invention will be further described below with reference to the accompanying drawings. Description of the Drawings

[0021] Figure 1 It is a schematic diagram of the forward three-dimensional structure of the present invention.

[0022] Figure 2 It is a schematic diagram of the back three-dimensional structure of the present invention.

[0023] Figure 3 It is a schematic diagram of the front structure of the present invention.

[0024] Figure 4 It is a schematic diagram of the structure of the first rotation scheme of the horn according to the present invention.

[0025] Figure 5 It is a schematic diagram of the structure of the second rotation scheme of the horn according to the present invention.

[0026] Figure 6 It is a schematic diagram of the structure of the third rotation scheme of the horn according to the present invention.

[0027] Figure 7 It is a schematic diagram of the structure of the fourth rotation scheme of the horn according to the present invention.

[0028] Figure 8 It is a schematic diagram of the structure of the fifth rotation scheme of the horn according to the present invention.

[0029] Figure 9 It is a schematic diagram of the structure of the horn after rotating a certain angle according to the present invention.

[0030] Figure 10 It is a schematic diagram of the structure of the horn rotated horizontally according to the present invention.

[0031] Figure 11 It is a schematic diagram of the internal structure of the horn according to the present invention.

[0032] Figure 12 It is another schematic diagram of the structure of the horn according to the present invention.

[0033] Figure 13 It is a schematic diagram of the structure in which the long opening of the horn according to the present invention is set as a rhombus opening. Detailed Embodiments

[0034] As Figures 1-13As shown in the figure, the horn speaker of the present invention capable of rotating an angle includes a speaker main body 1, a longitudinal support 11, and a horn 2 with a long-shaped opening 21 on the front. Among them, the longitudinal support 11 can be either fixed to the speaker main body 1 or independently erected on a support surface such as the ground. In this embodiment, the longitudinal support 11 is directly fixed to the speaker main body 1, that is, the bottom of the longitudinal support 11 is placed on the top surface of the speaker main body 1. The horn 2 is connected to the speaker main body 1 by an audio signal, and is horizontally arranged on the upper part of the longitudinal support 11 and rotatably connected to the longitudinal support 11. In this embodiment, the horn 2 is located above the speaker main body 1, its long-shaped opening 21 faces forward, and its rotation axis is perpendicular or nearly perpendicular to the longitudinal support 11. In addition, the horn 2 and the speaker main body 1 can also be placed separately in different areas. The speaker main body 1 includes a base 12, a woofer 13, and a midrange speaker 14. Moreover, in order to be able to adjust the speaker to a satisfactory sound quality, a frequency divider 15 is installed on the longitudinal support 11, and the sound quality of the horn 2, the woofer 13, and the midrange speaker 14 is adjusted through this frequency divider 15, so as to achieve a satisfactory audio effect as a whole. In this embodiment, the base 12 is a box structure, the woofer 13 is located inside the box structure, the midrange speaker 14 and the longitudinal support 11 are fixed on the top surface of the box structure, the frequency divider 15 is installed on the back of the longitudinal support 11, and support feet can also be provided on the bottom surface of the box structure. Moreover, in this embodiment, the longitudinal support 11 is a longitudinal support plate, and a triangular auxiliary support plate can also be provided at the bottom of the longitudinal support plate, so that the bottom of the longitudinal support plate is more stable and the support is more reliable. In addition, the longitudinal support 11 can also be set in the structural form of a support frame composed of several support rods. The shape of the long-shaped opening 21 of the horn 2 is rectangular, diamond-shaped, oval, waist-drum-shaped, trapezoidal or other geometric shapes. For example: as Figure 3 shown, the shape of the long-shaped opening 21 is rectangular; as Figure 13 shown, the shape of the long-shaped opening 21 is diamond-shaped. At the same time, in this embodiment, the horn 2 is rotatably connected to the upper end of the longitudinal support 11. As shown in the figure, a through hole 111 is opened at the upper end of the longitudinal support 11, the inner diameter of the through hole 111 is slightly larger than the outer diameter of the driving head 22 of the horn 2, and the driving head 22 of the horn 2 passes through the through hole 111 from front to back, so that the horn 2 is horizontally arranged on the longitudinal support 11. Since the horn 2 can rotate an angle, it is beneficial to obtain a personal favorite sound field feeling, and the occupied space of the horn speaker can be adjusted, so as to be suitable for use in audio or audio-visual rooms of different areas. For example, for a small audio or audio-visual room, the horn can be adjusted to a vertical form (such as Figure 1As shown in the figure, the lateral floor space of the horn speaker is thus greatly reduced. Moreover, the horn 2 is connected to the longitudinal support 11 by passing its drive head 22 through the through hole 111. Such a structure is conducive to the disassembly and assembly of the horn 2, thus facilitating the disassembly of the present invention for elevator transportation. In order to prevent the horn 2 from scraping against the cabinet structure and the midrange speaker during rotation, the distance from the axis of the horn 2 to the top surface of the cabinet structure should be greater than half of the front length of the long opening 21, and the midrange speaker 14 is arranged at a position where it does not block the rotation of the horn 2.

[0035] In order to reduce the resistance during the rotation of the horn and facilitate the rotation operation of the horn, making its rotation more flexible, smooth and stable, the horn 2 is rotatably connected to the longitudinal support 11 through the rotating mechanism 3. Specifically, the rotating mechanism 3 is located at or near the throat of the horn 2. Moreover, the structure of the rotating mechanism 3 can be set into various different structural forms.

[0036] One of the structural forms of the rotating mechanism, such as Figure 4As shown, the rotating mechanism 3 includes a turntable 31 fixedly connected to the horn 2 and a plurality of limiting shafts 32 fixedly connected to the longitudinal support 11. The plurality of limiting shafts 32 surround the outer periphery of the turntable 31 and are in close contact with the turntable 31. The turntable 31 can rotate within the space jointly formed by the plurality of limiting shafts 32. In this embodiment, the turntable 31 can be fixed at the throat position of the horn 2 by screws or welding. A perforation is provided at the center of the turntable 31, so as to facilitate the turntable 31 to be sleeved into the throat position of the horn 2 from the side where the driving head 22 of the horn 2 is located. The center line of the turntable 31 is the rotation axis of the horn 2, and each limiting shaft 32 is horizontally arranged on the longitudinal support 11. As shown in the figure, four limiting shafts 32 are provided, and limiting grooves 321 are respectively provided at the same position of each limiting shaft 32. The turntable 31 is snapped into the limiting grooves 321, so as to prevent the turntable 31 from shifting forward during use and disconnecting from the limiting shafts 32, ensuring the reliable use of the turntable 31. When it is necessary to adjust the use angle of the horn 2, directly push the horn 2 by hand, so that the horn 2 and the turntable 31 rotate around the central axis of the turntable 31 together. Moreover, after the horn 2 rotates to the required angle, positioning can be achieved through the positioning mechanism 4 provided on the longitudinal support 11 and cooperating with the rotating mechanism 3. Specifically, the positioning mechanism 4 includes a fixed seat and a positioning connecting piece 41 provided on the fixed seat. At the same time, a plurality of positioning grooves 36 that can be detachably connected to the positioning connecting piece 41 are annularly arranged at equal intervals on the rotating mechanism 3. In this embodiment, the positioning grooves 36 are arranged as arc-shaped pits. After the horn 2 rotates to the required angle, the horn 2 is positioned through the snap connection between the positioning connecting piece 41 and one of the positioning grooves 36. Moreover, in this embodiment, the plurality of positioning grooves 36 are annularly arranged at equal intervals on the outer circumferential surface of the turntable 31. The positioning connecting piece 41 is located above the turntable 31, and the lower end of the positioning connecting piece 41 is engaged and connected with the positioning grooves 36. Moreover, in order to reduce the rigid contact between the positioning connecting piece 41 and the positioning grooves 36 and make the rotation and disconnection of the horn 2 smoother, a return spring is sleeved on the positioning connecting piece 41, so that the positioning connecting piece 41 can move up and down. When the horn 2 is rotated, the positioning connecting piece 41 is disconnected from the positioning grooves 36 under the action of the external rotation force applied to the horn 2. When the horn 2 rotates to the required angle, the horn 2 can be positioned through the snap connection between the positioning connecting piece 41 and one of the positioning grooves 36. In addition, a plurality of positioning grooves 36 can also be annularly arranged at equal intervals on the surface of the turntable 31 facing the longitudinal support 11, and a conical protrusion that can be detachably connected to each positioning groove 36 is provided on the surface of the longitudinal support 11 facing the turntable 31.

[0037] Another structural form of the rotating mechanism, such as Figure 5As shown, the rotating mechanism 3 includes a bearing 33. The inner ring 331 of the bearing 33 is fixedly connected to the horn 2 through a sleeve 34, and the outer ring 332 of the bearing 33 is fixedly connected to the longitudinal support 11. In this embodiment, the outer ring 332 of the bearing 33 is fixed in the through hole 111 of the longitudinal support 11, and the throat of the horn 2 is fixedly connected to the inner ring 331 of the bearing 33 through a sleeve 34. When it is necessary to adjust the use angle of the horn 2, directly push the horn 2 by hand, so that the horn 2 and the inner ring 331 of the bearing 33 rotate together around the central axis of the bearing 33. Moreover, after the horn 2 rotates to the required angle, positioning can be achieved through the positioning mechanism 4 provided on the longitudinal support 11 and cooperating with the rotating mechanism 3. Specifically, the positioning mechanism 4 includes a fixed seat and a positioning connecting member 41 provided on the fixed seat. At the same time, a number of positioning grooves 36 that can be detachably connected to the positioning connecting member 41 are annularly arranged at equal intervals on the rotating mechanism 3. In this embodiment, the positioning grooves 36 are set as arc-shaped pits. After the horn 2 rotates to the required angle, the horn 2 is positioned by the snap connection of the positioning connecting member 41 and one of the positioning grooves 36. Moreover, in this embodiment, a number of positioning grooves 36 are annularly arranged at equal intervals on the outer circumferential surface of the sleeve 34. The positioning connecting member 41 is located above the sleeve 34, and the lower end of the positioning connecting member 41 is engaged with the positioning groove 36. Moreover, in order to reduce the rigid contact between the positioning connecting member 41 and the positioning groove 36 and make the rotation and disengagement of the horn 2 smoother, a return spring is sleeved on the positioning connecting member 41, so that the positioning connecting member 41 can move up and down. When the horn 2 is rotated, the positioning connecting member 41 is disengaged from the positioning groove 36 under the action of the rotational external force applied to the horn 2. When the horn 2 rotates to the required angle, the horn 2 can be positioned by the snap connection of the positioning connecting member 41 and one of the positioning grooves 36.

[0038] Another structural form of the rotating mechanism is as Figure 6As shown, the rotating mechanism 3 includes a gear 35 fixedly connected to the horn 2, and the gear 35 is rotatably connected to the longitudinal support 11. In this embodiment, the gear 35 is rotatably connected within the through hole 111 of the longitudinal support 11 and extends forward by a certain distance. When it is necessary to adjust the use angle of the horn 2, directly push the horn 2 by hand, so that the horn 2 and the gear 35 rotate together around the central axis of the gear 35. Moreover, after the horn 2 rotates to the required angle, positioning can be achieved through the positioning mechanism 4 provided on the longitudinal support 11 and cooperating with the rotating mechanism 3. Specifically, the positioning mechanism 4 includes a positioning connecting piece 41 fixedly connected to the longitudinal support 11. At the same time, a number of positioning grooves 36 that can be detachably connected to the positioning connecting piece 41 are annularly arranged at equal intervals on the rotating mechanism 3. In this embodiment, the positioning grooves 36 are formed by the tooth grooves of the gear 35, and the positioning connecting piece 41 has a engaging portion with the same shape as the tooth groove of the gear 35. When it is necessary to adjust the use angle of the horn 2, the positioning connecting piece 41 is disengaged from the tooth groove of the gear 35 under the action of the external rotating force applied to the horn 2, so that the horn 2 and the gear 35 rotate together. After the horn 2 rotates to the required angle, the positioning of the horn 2 can be achieved through the engaging connection between the positioning connecting piece 41 and one of the tooth grooves of the gear 35.

[0039] In order to make the rotation operation mode of the horn diverse, in addition to the rotation of the rotating mechanism 3 by directly pushing the horn 2 by hand, the horn 2 can also be rotated by driving the rotating mechanism 3 through the driving mechanism 5. Moreover, the driving mechanism 5 can be either a hand-cranked driving mechanism or a motor-driven mechanism.

[0040] When the driving mechanism 5 is a motor-driven mechanism, the driving mechanism 5 includes a motor 53 and a transmission structure connected to the motor 53, wherein the transmission structure is connected to the rotating mechanism 3, and the motor 53 is fixed on the longitudinal support 11. Moreover, the transmission structure can be set in a variety of different structural forms. For example: the transmission structure is a screw 52, and the screw 52 is meshed with the rotating mechanism 3; or, the transmission structure is a gear set, the gear set is connected to the longitudinal support 11, and the power output gear of the gear set is meshed with the rotating mechanism 3, and the power input gear of the gear set is connected to the motor 53; or, the transmission structure includes a gear transmission box 54 and a screw 52 connected to the gear transmission box 54, and the screw 52 is meshed with the rotating mechanism 3. As Figure 7As shown in the figure, in this embodiment, the driving mechanism 5 includes a motor 53, a gearbox 54 connected to the rotating shaft of the motor 53, and a screw rod 52 connected to the power output end of the gearbox 54. The screw rod 52 is connected to the rotating mechanism 3, and one end of the screw rod 52 away from the gearbox 54 is rotatably connected to a mounting seat fixed on the longitudinal support 11. Specifically, when the rotating mechanism 3 includes a turntable 31 fixedly connected to the horn 2 and several limiting shafts 32 fixedly connected to the longitudinal support 11, several screw teeth 311 are equidistantly arranged in a ring on the outer circumferential surface of the turntable 31. The screw rod 52 is engaged with the screw teeth 311, and the rotation of the screw rod 52 drives the turntable 31 to rotate, thereby realizing the rotation of the horn 2. The several limiting shafts 32 surround the outer circumference of the turntable 31 and are in close contact with the turntable 31, which not only plays a role in supporting the turntable 31 but also enables the turntable 31 to rotate only within the space jointly enclosed by the several limiting shafts 32. At the same time, for the convenience of controlling the rotation angle, a travel switch 6 is provided on the longitudinal support 11, and an angle scale value is provided in front of the turntable 31. In addition, when the rotating mechanism 3 includes a bearing 33, since the inner ring 331 of the bearing 33 is fixedly connected to the horn 2 through a sleeve 34, and the outer ring 332 of the bearing 33 is fixedly connected to the longitudinal support 11, several screw teeth are equidistantly arranged in a ring on the outer circumferential surface of the sleeve 34. The screw rod 52 is engaged with the screw teeth, and the rotation of the screw rod 52 drives the sleeve 34 to drive the inner ring 331 of the bearing 33 to rotate, thereby realizing the rotation of the horn 2. At the same time, for the convenience of controlling the rotation angle, a travel switch 6 is provided on the longitudinal support 11. When the rotating mechanism 3 includes a gear 35 fixedly connected to the horn 2, the tooth groove of the gear 35 is set to be a structure that cooperates with the screw rod 52. The rotation of the screw rod 52 drives the gear 35 to rotate, thereby realizing the rotation of the horn 2. At the same time, for the convenience of controlling the rotation angle, a travel switch 6 is provided on the longitudinal support 11. The motor 53 can be either a general motor or a servo motor, and the motor 53 is electrically connected to a control switch, and the control switch is electrically connected to an external power supply.

[0041] When the driving mechanism 5 is a hand-crank driving mechanism, the driving mechanism 5 includes a hand crank 51 and a transmission structure connected to the hand crank 51, and the transmission structure is connected to the rotating mechanism 3. Moreover, the transmission structure can be set in a variety of different structural forms. For example: the transmission structure is a screw rod 52, and the screw rod 52 is engaged with the rotating mechanism 3; or, the transmission structure is a gear set, the gear set is connected to the longitudinal support 11, and the power output gear of the gear set is engaged with the rotating mechanism 3, and the power input gear of the gear set is connected to the hand crank 51. As Figure 8As shown, in this embodiment, the driving mechanism 5 includes a crank 51 and a screw rod 52 fixedly connected to the crank 51. The screw rod 52 is connected to the rotating mechanism 3, and both ends of the screw rod 52 are rotatably connected to a mounting seat, and each mounting seat is fixed on the longitudinal support 11. Specifically, when the rotating mechanism 3 includes a turntable 31 fixedly connected to the horn 2 and several limiting shafts 32 fixedly connected to the longitudinal support 11, several screw teeth 311 are equidistantly arranged in a ring on the outer circumferential surface of the turntable 31. The screw rod 52 is engaged with the screw teeth 311, and the turntable 31 is driven to rotate by the rotation of the screw rod 52, thereby realizing the rotation of the horn 2. The several limiting shafts 32 surround the outer periphery of the turntable 31 and are in close contact with the turntable 31, which not only plays a role in supporting the turntable 31 but also enables the turntable 31 to rotate only within the space jointly formed by the several limiting shafts 32. In addition, when the rotating mechanism 3 includes a bearing 33, since the inner ring 331 of the bearing 33 is fixedly connected to the horn 2 through a sleeve 34 and the outer ring 332 of the bearing 33 is fixedly connected to the longitudinal support 11, several screw teeth are equidistantly arranged in a ring on the outer circumferential surface of the sleeve 34. The screw rod 52 is engaged with the screw teeth, and the inner ring 331 of the bearing 33 is driven to rotate by the rotation of the screw rod 52 through the sleeve 34, thereby realizing the rotation of the horn 2. When the rotating mechanism 3 includes a gear 35 fixedly connected to the horn 2, the tooth groove of the gear 35 is set to be a structure that cooperates with the screw rod 52, and the gear 35 is driven to rotate by the rotation of the screw rod 52, thereby realizing the rotation of the horn 2.

[0042] In addition, the horn 2 can also be directly rotatably connected to the longitudinal support 11, that is, the driving head 22 of the horn 2 is rotatably connected in the through hole 111 of the longitudinal support 11, and several positioning grooves 36 are equidistantly arranged in a ring on the outer circumferential surface of the driving head 22, and a positioning connecting member 41 that can be detachably connected to each positioning groove 36 is arranged on the longitudinal support 11. The positioning connecting member 41 is installed on a fixed seat, and the lower end of the positioning connecting member 41 is engaged with the positioning groove 36. Moreover, in order to reduce the rigid contact between the positioning connecting member 41 and the positioning groove 36 and make the rotation of the horn 2 more flexible and smooth, a return spring is sleeved on the positioning connecting member 41, so that the positioning connecting member 41 can move up and down. When the horn 2 needs to be rotated, the horn 2 is directly pushed by hand, and the positioning connecting member 41 is disconnected from the positioning groove 36 under the action of the rotational external force applied to the horn 2. When the horn 2 rotates to the required angle, the positioning of the horn 2 can be realized through the engagement connection between the positioning connecting member 41 and one of the positioning grooves 36.

[0043] In order to make the appearance of the horn more beautiful and the sound emission uniform and stable, several partitions 211 are arranged in the long-shaped opening 21 of the horn 2, and each partition 211 has a tapered structure that gradually contracts from front to back (such as Figure 11As shown). Specifically, the number of the compartments 211 can be set to 4 to 12. Moreover, the long opening 21 of the horn 2 can also be directly composed of a plurality of compartments 211 having a conical structure.

[0044] The present invention is described by way of examples, but does not constitute a limitation to the present invention. With reference to the description of the present invention, other variations of the disclosed embodiments, which are easily conceivable to those skilled in the art, such variations should fall within the scope defined by the claims of the present invention.

Claims

1. A horn speaker with a rotatable horn, characterized in that: It includes a speaker main body (1), a longitudinal support (11), and a horn (2) with a long-shaped opening (21) on the front. The horn (2) is connected to the speaker main body (1) for audio signals, and the horn (2) is horizontally arranged on the longitudinal support (11) and rotatably connected to the longitudinal support (11) through a rotating mechanism (3); The rotating mechanism (3) includes a turntable (31) fixedly connected to the horn (2) and several limiting shafts (32) fixedly connected to the longitudinal support (11) and surrounding the outer periphery of the turntable (31). Each limiting shaft (32) is respectively provided with a limiting groove (321) at the same position. The turntable (31) is snapped into the limiting groove (321) and can rotate within the space enclosed by the several limiting shafts (32); or, The rotating mechanism (3) includes a bearing (33). The inner ring (331) of the bearing (33) is fixedly connected to the horn (2) through a sleeve (34), and the outer ring (332) of the bearing (33) is fixedly connected to the longitudinal support (11); or, The rotating mechanism (3) includes a gear (35) fixedly connected to the horn (2), and the gear (35) is rotatably connected to the longitudinal support (11); The horn (2) realizes rotation by directly pushing the horn (2) by hand to rotate the rotating mechanism (3); or, The horn (2) realizes rotation by the driving mechanism (5) driving the rotating mechanism (3) to rotate.

2. The horn speaker with a rotatable horn according to claim 1, characterized in that: The horn (2) is located above the speaker main body (1).

3. The horn speaker with a rotatable horn according to claim 1, characterized in that: A positioning mechanism (4) for cooperating with the rotating mechanism (3) is arranged on the longitudinal support (11). After the horn (2) rotates to the required angle, it is positioned by the positioning mechanism (4).

4. The horn speaker capable of rotating the horn according to claim 3, wherein: The positioning mechanism (4) includes a positioning connecting piece (41). Several positioning grooves (36) that can be disengaged and engaged with the positioning connecting piece (41) are annularly arranged at equal intervals on the rotating mechanism (3). After the horn (2) rotates to the required angle, the horn (2) is positioned by the snap connection of the positioning connecting piece (41) with one of the positioning grooves (36).

5. The horn speaker with a rotatable horn according to claim 1, characterized in that: The driving mechanism (5) includes a crank (51) and a transmission structure connected to the crank (51), and the transmission structure is connected to the rotating mechanism (3); or, The driving mechanism (5) includes a motor (53) and a transmission structure connected to the motor (53), the transmission structure is connected to the rotating mechanism (3), and a travel switch (6) is arranged on the longitudinal support (11).

6. The horn speaker with a rotatable horn according to claim 5, characterized in that: The transmission structure is a screw (52), and the screw (52) is engaged with the rotating mechanism (3); or, The transmission structure is a gear set, and the power output gear of the gear set is engaged with the rotating mechanism (3); or, The transmission structure includes a gear transmission box (54) and a screw (52) connected to the gear transmission box (54), and the screw (52) is engaged with the rotating mechanism (3).

7. The horn speaker with a rotatable horn according to claim 1, characterized in that: The shape of the long opening (21) of the horn (2) is rectangular, rhombic, oval, waist-drum-shaped or trapezoidal.

8. The horn speaker with a rotatable horn according to claim 1, characterized in that: A plurality of partitions (211) are provided in the long opening (21) of the horn (2).

9. The horn speaker with a rotatable horn according to claim 1, characterized in that: A frequency divider (15) is mounted on the longitudinal support (11).

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