Combined Bluetooth sound equipment

Abstract

The utility model discloses a combined Bluetooth sound box, which comprises a shell, the middle parts of the left side and the right side in the shell are rotatably connected with rotating frames, the upper ends of the rotating frames are provided with loudspeakers, the combined Bluetooth sound box also comprises a dustproof retractable mechanism, the dustproof retractable mechanism comprises screw rods and mounting blocks, the screw rods are rotatably connected in the rotating frames, and the mounting blocks are arranged in the mounting blocks. The mounting blocks are slidably connected to the lower end of the interior of the rotating frame, the middles of the mounting blocks are in threaded connection with the outer surface of the lead screw, and the sides, close to the middle of the shell, of the mounting blocks are fixedly connected with the loudspeaker through bolts. And when the loudspeaker is not used, the loudspeaker can be withdrawn, dust pollutants are prevented from polluting the loudspeaker, and sound distortion caused by dust pollution is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of combined bluetooth speakers, in particular to a combined bluetooth speaker. Background Art

[0002] With the progress of society, people yearn for a more colorful life. As a form of entertainment that has been passed down for thousands of years, singing and dancing have penetrated into the lives of people of all ethnic groups. However, with the development and progress of science and technology, people have more and more requirements for the performance forms and venues of singing and dancing. The audio system has been continuously improved and perfected with people's needs, from meeting the needs of live sound reinforcement for concerts with tens of thousands of people to meeting the needs of playing musical instruments and karaoke at home. Combination Bluetooth speakers are the most common. Existing combination Bluetooth speakers are mostly composed of Bluetooth sound sources, amplifiers and speakers. The speakers are placed on both sides of the amplifier. When the speakers are working, Bluetooth receives sound signals and then transmits the sound signals to the amplifier. The sound amplified by the amplifier is then emitted from the speakers. The speakers of traditional combination Bluetooth speakers are fixed and have poor directivity. The sound collection effect on the sides of the speakers is poor. When not used for a long time, the exposed speakers are easily contaminated by dust and dirt, causing sound distortion. For this reason, we propose a combination Bluetooth speaker. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a combined Bluetooth speaker. When in use, the speaker can be taken out and controlled to swing left and right, thereby improving the directivity of the speaker. When not in use, the speaker can also be retracted to prevent dust pollutants from contaminating the speaker, effectively avoiding sound distortion caused by dust pollution, and can effectively solve the problems in the background technology.

[0004] To achieve the above object, the utility model provides the following technical solution: a combined Bluetooth speaker, comprising a housing, wherein the middle parts of the left and right sides of the housing are rotatably connected to a rotating frame, and the upper ends of the rotating frames are each provided with a speaker, and further comprising a dustproof retractable mechanism;

[0005] Dust-proof retractable mechanism: It includes a screw rod and a mounting block, the screw rods are rotatably connected to the inside of the rotating frame, the mounting blocks are slidably connected to the inner lower end of the rotating frame, the middle part of the mounting block is threadedly connected to the outer surface of the screw rod, and the side of the mounting block close to the middle of the shell is fixedly connected to the speaker by bolts, providing a basis for the lifting and lowering of the speaker. When in use, the speaker can be taken out and controlled to swing left and right, which improves the directivity of the sound. The speaker can also be retracted when not in use to prevent dust pollutants from contaminating the speaker, effectively avoiding sound distortion caused by dust pollution.

[0006] Furthermore, it also includes a stereo amplifier, a Bluetooth transceiver and a single-chip microcomputer, wherein the single-chip microcomputer is arranged in the middle of the front end of the shell, the stereo amplifier is arranged in the internal center of the shell, the Bluetooth transceiver is arranged at the internal upper end of the shell, the input end of the single-chip microcomputer is electrically connected to the external power supply, the input end of the Bluetooth transceiver is electrically connected to the output end of the single-chip microcomputer, the input end of the stereo amplifier is electrically connected to the output end of the Bluetooth transceiver, and the input ends of the speakers are electrically connected to the output ends of the stereo amplifier, thereby providing a control effect for the operation of the audio.

[0007] Furthermore, the dustproof retractable mechanism also includes a knob, which is arranged at the upper end of the screw rod. The outer surface of the knob is provided with evenly distributed anti-slip protrusions, which can quickly take out and retract the speaker.

[0008] Furthermore, the dust-proof retractable mechanism also includes a reduction box, a worm, a worm wheel and a motor, wherein the motor is arranged in the middle of the bottom wall of the shell, the input end of the motor is electrically connected to the output end of the single-chip microcomputer, the reduction box is arranged in the middle of the inner lower end of the shell, the front end of the output shaft of the motor is fixedly connected to the rear end of the reduction shaft of the reduction box, the worm is rotatably connected to the front side of the inner lower end of the shell, the output shaft of the reduction box is fixedly connected to the middle part of the worm, the worm wheel is arranged at the lower end of the outer surface of the rotating frame, and the worm is meshingly connected to the worm wheel, so that the speaker can swing left and right.

[0009] Furthermore, the thread directions of the worm gears on the left and right sides are opposite, providing a basis for the retraction, extension and swing of the speaker.

[0010] Furthermore, it also includes a handle, which is arranged in the middle of the upper end of the shell to facilitate movement and carrying.

[0011] Furthermore, it also includes a cover plate and heat dissipation holes. The cover plate is arranged in the middle of the rear end of the shell, and the heat dissipation holes are evenly opened in the middle of the inner part of the cover plate to facilitate maintenance and heat dissipation.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the combined Bluetooth speaker has the following advantages:

[0013] 1. When using the combined Bluetooth speaker, first take out the speaker, reverse the knob, the screw rod also rotates synchronously, the mounting block and the speaker move up synchronously until the bottom end of the speaker is higher than the upper end of the shell. At this time, the single-chip microcomputer controls the motor to operate, driving the worm to rotate, and the worm wheel also rotates accordingly, driving the rotating frame to rotate, and the speaker also deflects outward ninety degrees until the sound-emitting surface of the speaker is located at the front end of the shell. When the combined Bluetooth speaker is not in use, retract the speaker, the motor drives the worm to rotate until the sound-emitting surface of the speaker is aligned with the middle of the shell, turn the knob forward, drive the screw rod to rotate, and the mounting block and the speaker move down synchronously until the speaker is retracted into the shell. At this time, the speaker is located inside the shell, and dust pollutants cannot enter the speaker, effectively avoiding sound distortion caused by dust pollution.

[0014] 2. When the combined Bluetooth speaker is working, the motor drives the worm to rotate forward through the reduction gearbox, and the worm wheel also rotates forward, driving the rotating frame and the speaker to deflect to the left. When the speaker is deflected to a suitable angle, the motor drives the worm to reverse through the reduction gearbox, and the worm wheel also reverses synchronously, driving the rotating frame and the speaker to deflect to the right. The speaker swings left and right, and the angle of the speaker's sound surface is changed by deflecting the speaker angle, thereby improving the directivity of the speaker. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the dust-proof retractable mechanism of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the dustproof retractable mechanism of the utility model;

[0018] Figure 4 This is a schematic diagram of the heat dissipation hole structure of the cover plate of the utility model.

[0019] In the figure: 1 housing, 2 rotating frame, 3 stereo amplifier, 4 Bluetooth transceiver, 5 speaker, 6 dustproof retractable mechanism, 61 screw, 62 mounting block, 63 knob, 64 reduction box, 65 worm, 66 worm wheel, 67 motor, 7 handle, 8 single chip microcomputer, 9 cover plate, 10 heat dissipation hole. DETAILED DESCRIPTION

[0020] 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.

[0021] See also Figure 1-4 , this embodiment provides a technical solution: a combined Bluetooth audio, including a shell 1, the middle of the left and right sides of the shell 1 are rotatably connected with a rotating frame 2, the upper end of the rotating frame 2 is placed with a speaker 5, and also includes a stereo amplifier 3, a Bluetooth transceiver 4 and a single-chip microcomputer 8, the single-chip microcomputer 8 is arranged in the middle of the front end of the shell 1, the stereo amplifier 3 is arranged in the center of the shell 1, the Bluetooth transceiver 4 is arranged at the upper end of the shell 1, the input end of the single-chip microcomputer 8 is electrically connected to the external power supply, the input end of the Bluetooth transceiver 4 is electrically connected to the output end of the single-chip microcomputer 8, the input end of the stereo amplifier 3 is electrically connected to the output end of the Bluetooth transceiver 4, the input end of the speaker 5 is electrically connected to the output end of the stereo amplifier 3, and the operation of the audio is controlled. The handle 7 is arranged in the middle of the upper end of the shell 1 for easy movement and carrying, and also includes a cover plate 9 and a heat dissipation hole 10, the cover plate 9 is arranged in the middle of the rear end of the shell 1, and the heat dissipation hole 10 is evenly opened in the middle of the cover plate 9 for easy maintenance and heat dissipation, and also includes a dustproof retractable mechanism 6;

[0022] The dustproof retractable mechanism 6 includes a screw rod 61 and a mounting block 62. The screw rod 61 is rotatably connected to the inside of the rotating frame 2. The mounting block 62 is slidably connected to the lower end of the inside of the rotating frame 2. The middle part of the mounting block 62 is threadedly connected to the outer surface of the screw rod 61. The side of the mounting block 62 close to the middle of the shell 1 is fixedly connected to the speaker 5 by bolts, which is convenient for replacing different speakers 5 and provides a basis for the lifting and lowering of the speaker 5. The dustproof retractable mechanism 6 also includes a knob 63. The knob 63 is arranged at the upper end of the screw rod 61. The outer surface of the knob 63 is provided with evenly distributed anti-slip protrusions, which can quickly take out and retract the speaker 5. The dustproof retractable mechanism 6 also includes a reduction box 64 , worm 65, worm wheel 66 and motor 67, the motor 67 is arranged in the middle of the bottom wall of the shell 1, the input end of the motor 67 is electrically connected to the output end of the single-chip computer 8, the reduction box 64 is arranged in the middle of the lower end of the inner part of the shell 1, the front end of the output shaft of the motor 67 is fixedly connected to the rear end of the reduction shaft of the reduction box 64, the worm 65 is rotatably connected to the front side of the lower end of the inner part of the shell 1, the output shaft of the reduction box 64 is fixedly connected to the middle part of the worm 65, the worm wheel 66 is arranged at the lower end of the outer surface of the rotating frame 2, the worm 65 is meshed with the worm wheel 66, so that the speaker 5 can swing left and right, and the thread directions of the worm 65 on the left and right sides are opposite, providing a basis for the retraction and swinging of the speaker 5;

[0023] The working principle of a combined Bluetooth audio system provided by the utility model is as follows: when the combined Bluetooth audio system is working, first take out the speaker 5, reverse the knob 63, and the screw rod 61 also rotates synchronously. Because the middle part of the mounting block 62 is threadedly connected to the outer surface of the screw rod 61, as the screw rod 61 rotates, the mounting block 62 also moves up, and the speaker 5 moves up synchronously until the bottom end of the speaker 5 is higher than the upper end of the shell 1. At this time, the single-chip microcomputer 8 controls the motor 67 to operate, and the output shaft of the motor 67 drives the reduction shaft of the reduction box 64 to rotate, and the speed is reduced by the reduction box 64 and then output from the output shaft, driving the worm 65 to rotate. Because the worm 65 is meshed and connected with the worm wheel 66, the thread directions of the worm 65 on the left and right sides are opposite, so as the worm 65 rotates, the worm wheel 66 also rotates, driving the rotating frame 2 to rotate, and the speaker 5 is also deflected outward by ninety degrees. The speaker 5 is taken out, and at this time the single-chip microcomputer 8 controls the Bluetooth transceiver 4 to work, and the Bluetooth transceiver 4 receives the sound signal and transmits the sound signal to the stereo amplifier 3, and then the sound is emitted through the speaker 5. At this time, the single-chip computer 8 controls the motor 67 to operate again. The motor 67 drives the worm 65 to rotate forward through the reduction box 64, and the worm wheel 66 also rotates forward, driving the rotating frame 2 and the speaker 5 to deflect to the left. When the speaker 5 is deflected to a suitable angle, the motor 67 drives the worm 65 to reverse through the reduction box 64, and the worm wheel 66 also reverses synchronously, driving the rotating frame 2 and the speaker 5 to deflect to the right, and the speaker 5 swings left and right. The angle of the sound-emitting surface of the speaker 5 is changed by deflecting the angle of the speaker 5, thereby improving the directivity of the sound. When the speaker 5 is not used for a long time, it is necessary to retract the speaker 5. The motor 67 drives the worm 65 to rotate through the reduction box 64 until the sound-emitting surface of the speaker 5 is aligned with the middle of the shell 1. At this time, the forward rotation knob 63 drives the screw rod 61 to rotate, and the mounting block 62 and the speaker 5 move downward synchronously until the speaker 5 is retracted into the shell 1. At this time, the speaker 5 is located inside the shell 1, and dust pollutants cannot enter the speaker 5, effectively avoiding sound distortion caused by dust pollution.

[0024] It is worth noting that the single-chip microcomputer 8 disclosed in the above embodiment is an S7-200 single-chip microcomputer, the stereo amplifier 3 is a FINDFINE BL2400 stereo amplifier, the Bluetooth transceiver 4 is an NRF51822-QFAC-R Bluetooth transceiver, the speaker 5 is a TKW-P06B speaker, and the motor 67 is a 36GP-36ZY motor. The single-chip microcomputer 8 controls the operation of the Bluetooth transceiver 4 and the motor 67 using methods commonly used in the prior art.

[0025] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A combined Bluetooth speaker, comprising a housing (1), wherein the housing (1) is rotatably connected to a rotating frame (2) at the middle of both left and right sides, and a speaker (5) is placed at the upper end of the rotating frame (2), characterized in that: It also includes a dustproof retractable mechanism (6); The dustproof retractable mechanism (6) comprises a screw rod (61) and a mounting block (62), wherein the screw rod (61) is rotatably connected to the interior of the rotating frame (2), and the mounting block (62) is slidably connected to the lower end of the interior of the rotating frame (2). The middle portion of the mounting block (62) is threadedly connected to the outer surface of the screw rod (61), and one side of the mounting block (62) close to the middle portion of the housing (1) is fixedly connected to the speaker (5) by means of bolts.

2. A combined Bluetooth speaker according to claim 1, characterized in that: The device also comprises a stereo amplifier (3), a Bluetooth transceiver (4) and a single-chip microcomputer (8), wherein the single-chip microcomputer (8) is arranged at the middle of the front end of the housing (1), the stereo amplifier (3) is arranged at the inner center of the housing (1), the Bluetooth transceiver (4) is arranged at the inner upper end of the housing (1), the input end of the single-chip microcomputer (8) is electrically connected to an external power supply, the input end of the Bluetooth transceiver (4) is electrically connected to the output end of the single-chip microcomputer (8), the input end of the stereo amplifier (3) is electrically connected to the output end of the Bluetooth transceiver (4), and the input ends of the loudspeakers (5) are all electrically connected to the output end of the stereo amplifier (3).

3. The combined Bluetooth speaker according to claim 1, characterized in that: The dustproof retractable mechanism (6) further comprises a knob (63), wherein the knob (63) is arranged at the upper end of the screw rod (61), and the outer surface of the knob (63) is provided with evenly distributed anti-slip protrusions.

4. The combined Bluetooth speaker according to claim 1, characterized in that: The dustproof storage and release mechanism (6) further comprises a reduction box (64), a worm (65), a worm wheel (66) and a motor (67); the motor (67) is arranged at the middle of the bottom wall of the housing (1); the input end of the motor (67) is electrically connected to the output end of the single-chip computer (8); the reduction box (64) is arranged at the middle of the lower end inside the housing (1); the front end of the output shaft of the motor (67) is fixedly connected to the rear end of the reduction shaft of the reduction box (64); the worm (65) is rotatably connected to the front side of the lower end inside the housing (1); the output shaft of the reduction box (64) is fixedly connected to the middle of the worm (65); the worm wheel (66) is arranged at the lower end of the outer surface of the rotating frame (2); and the worm (65) is meshingly connected to the worm wheel (66).

5. A combined Bluetooth speaker according to claim 4, characterized in that: The thread directions of the worm screws (65) on the left and right sides are opposite.

6. The combined Bluetooth speaker according to claim 1, characterized in that: It also comprises a handle (7), wherein the handle (7) is arranged at the middle part of the upper end of the shell (1).

7. The combined Bluetooth speaker according to claim 1, characterized in that: It also comprises a cover plate (9) and heat dissipation holes (10), wherein the cover plate (9) is arranged in the middle of the rear end of the housing (1), and the heat dissipation holes (10) are evenly arranged in the middle of the interior of the cover plate (9).

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