Combined spliced sound box

Abstract

The invention belongs to the technical field of sound boxes, and particularly relates to a combined type spliced sound box which comprises a sound box support, a bass sound box is rotationally connected into the sound box support, middle-high pitch sound boxes are arranged on the two sides of the sound box support, and an extension structure used for moving the middle-high pitch sound boxes is arranged at the bottom end of the sound box support. A turning structure for turning the bass sound box is arranged in the sound box bracket; the extension rod drives the two mid-high pitch sound boxes to extend, so that the bass sound box can be separated from the mid-high pitch sound boxes, sound interference can be avoided, the stereoscopic impression and layering sense of sound can be enhanced, the steering fluted disc drives the mid-high pitch sound boxes to rotate towards a listener, the phases of the sound can be consistent, and the sound quality is improved. Meanwhile, the sound box is matched with the bass sound box to turn over towards a listener, so that the bass definition is higher.

Description

Technical Field

[0001] The invention belongs to the technical field of sound boxes, in particular to a combined splicing sound box. Background Art

[0002] A speaker is a device that converts electrical signals into vibrations and produces sound through vibrations. Speakers can be used in different scenarios. Among them, the speaker equipment used to play music will use a bass speaker and a mid-high speaker together to achieve the best playback effect. By combining the speakers, low, mid-high audio frequencies can be played at the same time, making the music feel better.

[0003] The prior art also proposes some solutions for combined speakers. For example, a patent application with authorization announcement number CN108551609B discloses a multifunctional combined mobile phone speaker, which makes it easier to assemble and disassemble the two speakers through a connecting structure.

[0004] The above technical solution combines and separates the two speakers by disassembly and assembly. When they are used separately, they need to be powered separately, which is inconvenient. In addition, the placement of the speakers will be different in different usage environments. Improper placement will lead to inconsistent phases of the speaker sounds, thereby affecting the clarity and positioning of the sound.

[0005] To this end, the present invention provides a combined splicing sound box. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: the combined spliced ​​speaker described in the present invention includes a speaker bracket, a bass speaker is rotatably connected inside the speaker bracket, mid-high frequency speakers are arranged on both sides of the speaker bracket, an extension structure for moving the mid-high frequency speakers is arranged at the bottom end of the speaker bracket, a flip structure for the rotation direction of the bass speaker is arranged inside the speaker bracket, the speaker bracket and the bass speaker are electrically connected by a connecting line, and the speaker bracket and two mid-high frequency speakers are electrically connected by a connecting line.

[0008] Preferably, the extension structure includes a motor installed inside the speaker bracket, an output gear is fixed to the end of the rotating shaft of the motor, a first pulley is provided on both sides of the motor, a second pulley is provided on the side of the first pulley close to the motor, a belt is sleeved on the outside of the first pulley and the second pulley, a second transmission gear is fixed to the top end of the second pulley, the bottom end of the second pulley is movably connected to the inner wall of the speaker bracket, a moving gear is fixed to the bottom end of the first pulley through a connecting column, the connecting column is rotatably connected to the inside of the speaker bracket, extension rods are provided on both sides of the moving gear, the extension rods are meshingly connected to the moving gear, a guide groove is opened inside the extension rod, a guide block is slidably connected inside the guide groove, and the top of the guide block is fixedly connected to the bottom end of the speaker bracket.

[0009] Preferably, rollers are rotatably connected to both sides of the guide block, and the top ends of the rollers are in contact with the bottom ends of the guide grooves.

[0010] Preferably, a support seat is fixed on one side of the extension rod close to the mid-high frequency speaker, a steering gear is fixed to the bottom end of the mid-high frequency speaker, a rotating column is fixed to the bottom end of the steering gear, the rotating column is inserted into the interior of the support seat, and the steering gear forms a rotating structure at the top end of the support seat.

[0011] Preferably, rollers are provided at both ends of the bottom end of the mid-high frequency speaker away from the speaker bracket, a roller is fixed between the rollers, a push frame is fixed to the support seat on the side close to the roller, the roller runs through the inside of the push frame, and the roller forms a rotating structure inside the push frame.

[0012] Preferably, a movable frame is fixed to the side of the roller close to the support seat, one end of the movable frame is fixedly connected to the support seat, a sliding rod is provided on the side of the movable frame close to the roller, a movable block is slidably connected to the outside of the sliding rod, a movable groove is provided inside the movable block, a threaded ring is provided inside the movable groove, a thread is provided on the outer side of the roller close to one end of the movable frame, the thread length of the roller is equal to the length of the sliding rod, the threaded ring is sleeved on the outside of the roller, the threaded ring is threadedly connected to the roller via a thread, a return spring is fixed to the side of the threaded ring close to the inner wall of the movable groove, and the other end of the return spring is fixedly connected to the inner wall of the movable groove.

[0013] Preferably, a moving gear plate is provided at one end of the pushing frame close to the moving frame, the moving gear plate is fixedly connected to the roller, the end of the moving block close to the moving gear plate is rotatably connected to a transmission gear column, the top of the pushing frame is rotatably connected to the first transmission gear, a redirecting gear is meshedly connected between the steering gear plate and the first transmission gear, the bottom end of the redirecting gear is rotatably connected to the pushing frame, the top of the transmission gear column is meshedly connected to the first transmission gear, and the bottom of the transmission gear column is meshedly connected to the moving gear plate.

[0014] Preferably, a flip plate is hinged on the side of the mid-high frequency speaker away from the speaker bracket, a push block is fixed to the top of the flip plate close to the mid-high frequency speaker, flip springs are provided at both ends of the push block, the two ends of the flip spring are respectively fixedly connected to the flip plate and the mid-high frequency speaker, and a switch contact is provided on the side of the mid-high frequency speaker close to the flip plate.

[0015] Preferably, the flip structure includes a flip gear plate fixed at the end of a rotating shaft on one side of the bass speaker, a rotating rod is fixed to the top of the first pulley near the flip gear plate, a flip gear is fixed to the top of the rotating rod, the flip gear is meshed and connected to the flip gear plate on the side near the flip gear plate, the outer portion of the rotating rod is rotatably connected to a support frame, and one side of the support frame is fixedly connected to the inner wall of the speaker bracket.

[0016] Preferably, a supporting gear disc is fixed to the end of the bass speaker away from the flip gear disc, and a flip gear, a support frame and a rotating rod are also arranged below the supporting gear disc. The supporting gear disc is meshed and connected with the flip gear, and the flip gear is rotatably connected to the inside of the support frame through the rotating rod, and the bottom end of the rotating rod on one side of the supporting gear disc is not fixedly connected to the first pulley.

[0017] The beneficial effects of the present invention are as follows: 1. The combined spliced ​​speaker of the present invention can drive two mid-high frequency speakers to extend through an extension rod, so that the bass speaker can be separated from the mid-high frequency speakers, thereby avoiding sound interference and enhancing the three-dimensional sense and layering of the sound. At the same time, the mid-high frequency speakers are driven to rotate toward the listener through a steering gear plate, so that the phase of the sound can be consistent, and the clarity of the sound heard from the mid-high frequency speakers will be higher. At the same time, the bass speaker can be turned toward the listener to make the clarity of the bass higher.

[0018] 2. The combined splicing speaker described in the present invention can contact the object during the movement of the mid-high frequency speaker through the flip plate, and can flip when encountering the object to sense the object, and push the switch contacts through the push block to cut off the power supply of the motor to stop the movement of the mid-high frequency speaker, thereby preventing the mid-high frequency speaker from pushing other objects during the movement and causing damage to the objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a stereogram of the present invention; Figure 2 is an extended state diagram of the present invention; Figure 3 It is a schematic diagram of the extension rod structure in the present invention; Figure 4 It is a structural schematic diagram of the present invention; Figure 5 It is a structural schematic diagram of the present invention; Figure 6 It is a structural schematic diagram of the present invention; Figure 7 It is a structural schematic diagram of the present invention; Figure 8 It is a structural schematic diagram of the present invention.

[0021] In the figure: 1, speaker bracket; 2, bass speaker; 3, mid-high frequency speaker; 4, extension rod; 41, support base; 411, push frame; 42, steering gear plate; 421, redirection gear; 422, first transmission gear; 43, flip gear plate; 431, flip gear; 432, support frame; 433, rotating rod; 434, supporting gear plate; 44, first pulley; 441, moving gear; 442, second pulley; 443, second transmission gear; 45, guide groove; 451, guide block; 452, roller; 46, motor; 5, roller; 51, roller; 52, movable gear plate; 53, movable frame; 531, slide rod; 532, movable block; 533, transmission gear column; 534, return spring; 535, movable groove; 536, threaded collar; 6, flip plate; 61, push block; 62, flip spring; 63, switch contact. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] like Figure 1 to Figure 2 As shown, a combined splicing speaker according to an embodiment of the present invention comprises a speaker bracket 1, a bass speaker 2 is rotatably connected inside the speaker bracket 1, mid-high frequency speakers 3 are arranged on both sides of the speaker bracket 1, an extension structure for moving the mid-high frequency speakers 3 is arranged at the bottom end of the speaker bracket 1, a flip structure for rotating the bass speaker 2 is arranged inside the speaker bracket 1, the speaker bracket 1 and the bass speaker 2 are electrically connected through a connecting line, and the speaker bracket 1 and the two mid-high frequency speakers 3 are electrically connected through a connecting line; In the process of listening to music, the positions of the bass speaker 2 and the mid-high frequency speakers 3 need to be set according to different usage environments. In an environment with a small usage space, the placement of the speakers is limited. At this time, the mid-high frequency speakers 3 are attached to both sides of the speaker bracket 1, and the bass speaker 2 is facing downward. At this time, the bass audio will be transmitted to the room through ground reflection, which can make the bass audio more evenly diffuse and the listening experience will be better. When the usage environment space is larger, the two mid-high frequency speakers 3 are pushed to both sides through the extended structure, and at the same time rotated a certain angle to make the sound phase consistent. At the same time, the bass speaker 2 is flipped so that the bass speaker is facing the listener. At this time, the bass emitted by the bass speaker 2 is clearer, and the bass speaker 2 and the mid-high frequency speakers 3 are placed separately to avoid sound interference, and at the same time can enhance the three-dimensional sense and layering of the sound.

[0024] like Figures 1 to 6 As shown, the extension structure includes a motor 46 installed inside the speaker bracket 1, an output gear is fixed to the end of the rotating shaft of the motor 46, a first pulley 44 is arranged on both sides of the motor 46, a second pulley 442 is arranged on the side of the first pulley 44 close to the motor 46, a belt is sleeved on the outside of the first pulley 44 and the second pulley 442, a second transmission gear 443 is fixed to the top of the second pulley 442, the bottom end of the second pulley 442 is movably connected to the inner wall of the speaker bracket 1, a moving gear 441 is fixed to the bottom end of the first pulley 44 through a connecting column, the connecting column is rotatably connected to the inside of the speaker bracket 1, extension rods 4 are arranged on both sides of the moving gear 441, the extension rod 4 is meshedly connected to the moving gear 441, a guide groove 45 is opened inside the extension rod 4, a guide block 451 is slidably connected inside the guide groove 45, and the top of the guide block 451 is fixedly connected to the bottom end of the speaker bracket 1; When the two mid-high frequency speakers 3 are separated from the speaker bracket 1, the starting motor 46 drives the second transmission gears 443 on both sides to rotate through the output gear, the second transmission gear 443 drives the second pulley 442 to rotate, the second pulley 442 drives the first pulley 44 to rotate through the belt, the first pulley 44 drives the moving gear 441 to rotate, and when the moving gear 441 rotates, it drives the extension rod 4 to extend to both sides of the speaker bracket 1. At this time, the extension rod 4 drives the mid-high frequency speakers 3 to move to both sides of the speaker bracket 1, so that the distance between the mid-high frequency speakers 3 and the bass speaker 2 can be increased, and at the same time, the guide block 451 limits the guide groove 45 to guide the movement of the extension rod 4.

[0025] like Figure 6 As shown, rollers 452 are rotatably connected to both sides of the guide block 451, and the top ends of the rollers 452 are in contact with the bottom ends of the guide grooves 45; During the movement of the extension rod 4 , the top end of the roller 452 contacts the bottom end of the extension rod 4 , thereby reducing the friction between the guide block 451 and the extension rod 4 .

[0026] like Figure 6 As shown, a support seat 41 is fixed to one side of the extension rod 4 close to the mid-high frequency speaker 3, a steering gear disc 42 is fixed to the bottom end of the mid-high frequency speaker 3, a rotating column is fixed to the bottom end of the steering gear disc 42, the rotating column is inserted into the inside of the support seat 41, and the steering gear disc 42 forms a rotating structure at the top end of the support seat 41; When the direction of the mid-high frequency speaker 3 needs to be adjusted, the mid-high frequency speaker 3 can be rotated, and the mid-high frequency speaker 3 drives the steering gear plate 42 to rotate on the top of the support seat 41, so as to achieve the adjustment of the direction.

[0027] like Figure 6 As shown, rollers 5 are arranged at both ends of the bottom end of the mid-high frequency speaker 3 away from the speaker bracket 1, a roller 51 is fixed between the rollers 5, a push frame 411 is fixed on the side of the support seat 41 close to the roller 51, the roller 51 runs through the inside of the push frame 411, and the roller 51 forms a rotating structure inside the push frame 411; When the mid-high frequency speaker 3 is driven to move, the roller 5 rolls at the bottom of the mid-high frequency speaker 3. The roller 5 rotates inside the push frame 411 through the roller 51 to support the bottom of the mid-high frequency speaker 3, making the mid-high frequency speaker 3 more stable during movement.

[0028] like Figure 6 to Figure 7 As shown, a movable frame 53 is fixed to one side of the roller 51 close to the support seat 41, one end of the movable frame 53 is fixedly connected to the support seat 41, a sliding rod 531 is provided on one side of the movable frame 53 close to the roller 51, a movable block 532 is slidably connected to the outside of the sliding rod 531, a movable groove 535 is provided inside the movable block 532, a threaded collar 536 is provided inside the movable groove 535, a thread is provided on the outside of the roller 51 close to one end of the movable frame 53, the thread length of the roller 51 is equal to the length of the sliding rod 531, the threaded collar 536 is sleeved on the outside of the roller 51, the threaded collar 536 is threadedly connected to the roller 51 through a thread, a return spring 534 is fixed to one side of the threaded collar 536 close to the inner wall of the movable groove 535, and the other end of the return spring 534 is fixedly connected to the inner wall of the movable groove 535; When the roller 5 rotates, the roller 51 is driven to rotate. The rotation of the roller 51 drives the threaded collar 536 to move through the thread. The threaded collar 536 drives the moving block 532 to move. The moving block 532 is guided by the slide rod 531 to move toward the push frame 411. When the moving block 532 moves to the end of the slide rod 531, the threaded collar 536 is driven by the thread to continue to move. At this time, the threaded collar 536 will squeeze the reset spring 534 into the movable groove 535, and then the threaded collar 536 is separated from the thread. After separation, the elastic force of the reset spring 534 pushes the threaded collar 536 to contact the thread, so that the reciprocating connection between the threaded collar 536 and the thread can be maintained.

[0029] like Figure 6 to Figure 7 As shown, a moving gear disc 52 is provided at one end of the push frame 411 close to the moving frame 53, and the moving gear disc 52 is fixedly connected to the roller 51. A transmission gear column 533 is rotatably connected to one end of the moving block 532 close to the moving gear disc 52. The top of the push frame 411 is rotatably connected to the first transmission gear 422. A redirecting gear 421 is meshedly connected between the steering gear disc 42 and the first transmission gear 422. The bottom end of the redirecting gear 421 is rotatably connected to the push frame 411. The top of the transmission gear column 533 is meshedly connected to the first transmission gear 422, and the bottom of the transmission gear column 533 is meshedly connected to the moving gear disc 52. When the mid-high frequency speakers 3 move to a specific distance, the distance between the two mid-high frequency speakers 3 is large and the sound will be dispersed. At this time, the moving block 532 moves to the end of the sliding rod 531, and the moving block 532 drives the transmission gear column 533 to engage with the moving gear plate 52 and the first transmission gear 422. At this time, the rotation of the moving gear plate 52 will drive the first transmission gear 422 to rotate through the transmission gear column 533. The rotation of the first transmission gear 422 drives the steering gear plate 42 to rotate through the redirecting gear 421. At this time, the steering gear plate 42 drives the mid-high frequency speakers 3 to rotate in the direction of the sound of the bass speaker 2, so that the sound of the two mid-high frequency speakers 3 can be converged in the middle, increasing the three-dimensional sense of the music.

[0030] like Figure 8 As shown, a flip plate 6 is hingedly connected to the side of the mid-high frequency speaker 3 away from the speaker bracket 1, a push block 61 is fixed to the top of the flip plate 6 close to the mid-high frequency speaker 3, both ends of the push block 61 are provided with a flip spring 62, the two ends of the flip spring 62 are respectively fixedly connected to the flip plate 6 and the mid-high frequency speaker 3, and a switch contact 63 is provided on the side of the mid-high frequency speaker 3 close to the flip plate 6; When the mid-high frequency speaker 3 moves to both sides, it may touch other objects. When it touches an object, the flip plate 6 is pressed to flip. At this time, the flip spring 62 supports the flip plate 6. When the pressure exceeds the elastic force of the flip spring 62, the push block 61 contacts the switch contact 63. At this time, the switch contact 63 is pressed. After the switch contact 63 is pressed, the rotation of the motor 46 is stopped, which can prevent the mid-high frequency speaker 3 from pushing down other objects during the movement.

[0031] like Figures 4 to 5 As shown, the flip structure includes a flip gear plate 43 fixed to the end of the rotating shaft on one side of the bass speaker 2, a rotating rod 433 is fixed to the top of the first pulley 44 near the flip gear plate 43, a flip gear 431 is fixed to the top of the rotating rod 433, and the flip gear 431 is meshed and connected with the flip gear plate 43 on the side near the flip gear plate 43, and the outer part of the rotating rod 433 is rotatably connected to a support frame 432, and one side of the support frame 432 is fixedly connected to the inner wall of the speaker bracket 1; During the rotation of the first pulley 44, the rotating rod 433 on one side is driven to rotate, and the rotating rod 433 drives the flip gear 431 to rotate. At this time, the flip gear 431 drives the flip toothed disk 43 to rotate. After the position of the mid-range speaker 3 is moved, the flip toothed disk 43 can drive the woofer 2 to flip 90°. At this time, the woofer of the woofer 2 faces the listener, which can make the listener feel better.

[0032] like Figure 4 As shown, a supporting toothed disc 434 is fixed to the end of the bass speaker 2 away from the flip toothed disc 43, and a flip gear 431, a support frame 432 and a rotating rod 433 are also arranged below the supporting toothed disc 434. The supporting toothed disc 434 is meshedly connected with the flip gear 431, and the flip gear 431 is rotatably connected to the inside of the support frame 432 through the rotating rod 433. The bottom end of the rotating rod 433 on one side of the supporting toothed disc 434 is not fixedly connected to the first pulley 44. The supporting toothed disc 434 on the other side cooperates with the flipping gear 431 to rotate, so that the bass speaker 2 can be more stable during the flipping process.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A combined splicing sound box, characterized in that: The speaker comprises a speaker bracket (1), wherein a bass speaker (2) is rotatably connected inside the speaker bracket (1), mid-high frequency speakers (3) are arranged on both sides of the speaker bracket (1), an extension structure for moving the mid-high frequency speakers (3) is arranged at the bottom end of the speaker bracket (1), a flip structure for rotating the bass speaker (2) is arranged inside the speaker bracket (1), the speaker bracket (1) and the bass speaker (2) are electrically connected via a connecting wire, and the speaker bracket (1) and the two mid-high frequency speakers (3) are electrically connected via a connecting wire.

2. A combined splicing sound box according to claim 1, characterized in that: The extension structure comprises a motor (46) installed inside the speaker bracket (1), an output gear is fixed to the end of the rotating shaft of the motor (46), first pulleys (44) are arranged on both sides of the motor (46), a second pulley (442) is arranged on the side of the first pulley (44) close to the motor (46), belts are sleeved on the outside of the first pulley (44) and the second pulley (442), a second transmission gear (443) is fixed to the top of the second pulley (442), and the bottom of the second pulley (442) is connected to the speaker bracket. (1), the bottom end of the first pulley (44) is fixed with a moving gear (441) via a connecting column, the connecting column is rotatably connected to the inside of the speaker bracket (1), extension rods (4) are provided on both sides of the moving gear (441), the extension rods (4) are meshingly connected with the moving gear (441), a guide groove (45) is provided inside the extension rod (4), a guide block (451) is slidably connected inside the guide groove (45), and the top end of the guide block (451) is fixedly connected to the bottom end of the speaker bracket (1).

3. A combined splicing sound box according to claim 2, characterized in that: Rollers (452) are rotatably connected to both sides of the guide block (451), and the top ends of the rollers (452) are in contact with the bottom ends of the guide grooves (45).

4. A combined splicing sound box according to claim 3, characterized in that: A support seat (41) is fixed to a side of the extension rod (4) close to the mid-high frequency speaker (3); a steering gear disc (42) is fixed to the bottom end of the mid-high frequency speaker (3); a rotating column is fixed to the bottom end of the steering gear disc (42); the rotating column is inserted into the interior of the support seat (41); and the steering gear disc (42) forms a rotating structure at the top end of the support seat (41).

5. The combined splicing sound box according to claim 4, characterized in that: Rollers (5) are arranged at both ends of the bottom of the mid-high frequency speaker (3) away from the speaker bracket (1); a roller (51) is fixed between the rollers (5); a push frame (411) is fixed on the side of the support seat (41) close to the roller (51); the roller (51) runs through the inside of the push frame (411); and the roller (51) forms a rotating structure inside the push frame (411).

6. The combined splicing sound box according to claim 5, characterized in that: A moving frame (53) is fixed to one side of the roller (51) close to the support seat (41), one end of the moving frame (53) is fixedly connected to the support seat (41), a sliding rod (531) is provided on one side of the moving frame (53) close to the roller (51), a moving block (532) is slidably connected to the outside of the sliding rod (531), a movable groove (535) is provided inside the moving block (532), a threaded collar (536) is provided inside the movable groove (535), and the roller (51) is provided with a movable groove (535). ) is provided with a thread on the outer side of one end close to the movable frame (53); the thread length of the roller (51) is equal to the length of the slide rod (531); the threaded collar (536) is sleeved on the outside of the roller (51); the threaded collar (536) is threadedly connected to the roller (51) via a thread; a return spring (534) is fixed to one side of the threaded collar (536) close to the inner wall of the movable groove (535); the other end of the return spring (534) is fixedly connected to the inner wall of the movable groove (535).

7. The combined splicing sound box according to claim 6, characterized in that: A moving toothed disc (52) is provided at one end of the push frame (411) close to the moving frame (53), and the moving toothed disc (52) is fixedly connected to the roller (51); an end of the moving block (532) close to the moving toothed disc (52) is rotatably connected to a transmission toothed column (533); a top end of the push frame (411) is rotatably connected to a first transmission gear (422); a redirecting gear (421) is meshedly connected between the steering toothed disc (42) and the first transmission gear (422); a bottom end of the redirecting gear (421) is rotatably connected to the push frame (411); an upper portion of the transmission toothed column (533) is meshedly connected to the first transmission gear (422); and a lower portion of the transmission toothed column (533) is meshedly connected to the moving toothed disc (52).

8. The combined splicing sound box according to claim 7, characterized in that: A flip plate (6) is hingedly connected to the side of the mid-high frequency speaker (3) away from the speaker bracket (1); a push block (61) is fixed to the top of the flip plate (6) on the side close to the mid-high frequency speaker (3); flip springs (62) are arranged at both ends of the push block (61); the two ends of the flip spring (62) are respectively fixedly connected to the flip plate (6) and the mid-high frequency speaker (3); and a switch contact (63) is arranged on the side of the mid-high frequency speaker (3) close to the flip plate (6).

9. The combined splicing sound box according to claim 8, characterized in that: The flip structure comprises a flip toothed disc (43) fixed to the end of a rotating shaft on one side of the bass speaker (2); a rotating rod (433) is fixed to the top end of a first pulley (44) close to the flip toothed disc (43); a flip gear (431) is fixed to the top end of the rotating rod (433); a side of the flip gear (431) close to the flip toothed disc (43) is meshedly connected to the flip toothed disc (43); the outside of the rotating rod (433) is rotatably connected to a support frame (432); and one side of the support frame (432) is fixedly connected to the inner wall of the speaker bracket (1).

10. The combined splicing sound box according to claim 9, characterized in that: A supporting toothed disc (434) is fixed to the end of the bass speaker (2) on one side away from the flip toothed disc (43); a flip gear (431), a support frame (432) and a rotating rod (433) are also arranged below the supporting toothed disc (434); the supporting toothed disc (434) is meshedly connected to the flip gear (431); the flip gear (431) is rotatably connected to the inside of the support frame (432) via the rotating rod (433); and the bottom end of the rotating rod (433) on one side of the supporting toothed disc (434) is not fixedly connected to the first pulley (44).

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