CN109246532B

CN109246532B - Sound box

Info

Publication number: CN109246532B
Application number: CN201811074414.3A
Authority: CN
Inventors: 陈超; 韦北进; 叶新
Original assignee: Shenzhen Fenda Technology Co Ltd
Current assignee: Shenzhen Fenda Technology Co Ltd
Priority date: 2018-09-14
Filing date: 2018-09-14
Publication date: 2024-04-02
Anticipated expiration: 2038-09-14
Also published as: CN109246532A

Abstract

The invention discloses a sound box, which comprises a top shell module and a bottom shell module, wherein the top shell module comprises a first loudspeaker assembly and a top shell assembly, the bottom shell module comprises a bottom shell assembly, a lifting device and an elastic assembly, the bottom of the lifting device is connected with the bottom of the bottom shell assembly, the bottom of the lifting device is connected with the elastic assembly, the top of the lifting device and the first loudspeaker assembly are both connected with the top of the elastic assembly, the top shell assembly is connected to one side, away from the elastic assembly, of the first loudspeaker assembly, the lifting device is arranged in the elastic assembly, a cavity is formed by enclosing the first loudspeaker assembly, the elastic assembly and the lifting device, and the lifting device and the elastic assembly synchronously stretch to adjust the size of the cavity and control the opening or sealing of the cavity. The sound box provided by the invention can occupy small space when not in use, and is convenient to carry.

Description

Sound box

Technical Field

The invention relates to the technical field of sound boxes, in particular to a sound box.

Background

The sound box mainly comprises a loudspeaker and a box body, the loudspeaker is used as a sound generating component of the sound box, and because the sound wave phases of the front side and the back side of the loudspeaker diaphragm are opposite, if sound wave signals of the front side and the back side of the loudspeaker diaphragm form a loop, only high-medium-frequency sound with small wavelength can be transmitted, and other sound signals can be overlapped and offset. The enclosure thus needs to be designed to prevent acoustic signals from the front and back of the horn from forming a loop. The existing sound box cavity space is fixed in size, and cannot stretch out and draw back when the sound box is not needed, so that the sound box occupies a large space and is inconvenient to carry.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide the sound box which can occupy small space when not in use and is convenient to carry.

The invention adopts the following technical scheme:

the utility model provides a sound box, includes top shell module and drain pan module, top shell module includes first speaker subassembly and top shell subassembly, the drain pan module include drain pan subassembly, bottom with elevating gear and the bottom that the drain pan subassembly is connected with elevating gear connects elastic component, elevating gear's top with first speaker subassembly all with elastic component's top is connected, top shell subassembly connect in one side that deviates from of first speaker subassembly elastic component, elevating gear locates in the elastic component, first speaker subassembly elastic component with elevating gear encloses and closes and form the cavity, elevating gear with elastic component is synchronous flexible in order to adjust the size of cavity and control the cavity is opened or is sealed.

Further, the lifting device comprises a telescopic mechanism positioned in the cavity, a battery mounting seat with a first bottom opening, and a bottom cover assembly arranged at the bottom of the telescopic mechanism and capable of moving along with the telescopic mechanism so as to control the first bottom opening switch, wherein the battery mounting seat is arranged on the bottom shell assembly, the bottom of the elastic assembly and the bottom of the telescopic mechanism are connected to the battery mounting seat, and the first loudspeaker assembly, the bottom cover assembly, the elastic assembly and the battery mounting seat are enclosed to form the cavity.

Further, the lifting device further comprises a top support connected with the elastic component, a bottom support connected with one side, deviating from the bottom shell component, of the battery mounting seat, a first clamping component arranged on one side, facing the bottom support, of the top support, and a second clamping component arranged on one side, facing the top support, of the bottom support, wherein a first clamping part, a leading-in structure arranged on one side of the first clamping part and a leading-out structure arranged on the other side of the first clamping part are arranged on the first clamping component, and a second clamping part capable of sliding to be buckled to the first clamping part along the leading-in structure and sliding to be separated from the first clamping part along the leading-out structure is arranged on the second clamping component.

Further, the first clamping assembly comprises a first clamping seat body which is arranged on the top support and provided with a concave cavity and a clamping table which is convexly arranged in the concave cavity, the first clamping part is arranged on the clamping table, the concave cavity is provided with a first side wall and a second side wall which are oppositely arranged, the clamping table is provided with a third side wall and a fourth side wall which are oppositely arranged, the first side wall and the third side wall are enclosed to form the leading-in structure, and the second side wall and the fourth side wall are enclosed to form the leading-out structure.

Further, the telescopic mechanism comprises a first connecting rod and a second connecting rod, the middle of the second connecting rod is hinged with the first connecting rod, one end of the first connecting rod is in sliding connection with the top support, and the other end of the first connecting rod is fixedly connected with the bottom support; one end of the second connecting rod is fixedly connected with the top support, and the other end of the second connecting rod is in sliding connection with the bottom support.

Further, the lifting device further comprises at least two first sliding tables which are connected with the second connecting rod and are arranged on one side of the bottom bracket, which faces towards the telescopic mechanism, and first guide rods which are the same in number as the first sliding tables and are in sliding fit with the first sliding tables, and the first guide rods are fixed on the bottom bracket; and/or the number of the groups of groups,

the side of the top support, which faces the bottom support, is provided with a second sliding table connected with the first connecting rod and a second guide rod which is in sliding fit with the second sliding table and is fixed on the top support.

Further, the bottom cover assembly comprises a cover assembly for covering the first bottom opening and a first elastic piece fixed at the bottom of the telescopic mechanism so as to drive the cover assembly to cover the first bottom opening or open the first bottom opening under the driving of the telescopic mechanism.

Further, the bottom shell module further comprises a side shell assembly, the side shell assembly comprises a first shell and a second shell sleeved inside the first shell and in butt joint with the first shell, the bottom of the second shell is connected with the bottom shell assembly and encloses to form a containing cavity, and the elastic assembly and the lifting device are both arranged in the containing cavity.

Further, the elastic assembly includes a bellows and a first support member that cooperates with a peripheral wall of the bellows for supporting the bellows.

Further, the top shell assembly comprises a decorative cover and a light-emitting structure arranged between the first loudspeaker assembly and the decorative cover, wherein the light-emitting structure comprises a circuit board, light-emitting parts arranged on the circuit board at intervals, a light guide plate connected with the circuit board, a light guide bracket arranged on one side, far away from the circuit board, of the light guide plate and a light diffusion part arranged outside the decorative cover in a sleeved mode, and the circuit board and the light guide plate are arranged in the light diffusion part.

Compared with the prior art, the invention has the beneficial effects that:

according to the sound box, when the sound box is normally used, the position of the bottom cover component is defined as the initial position, the bottom cover component is positioned at the high position, the cavity is sealed at the moment, the cavity space is maximum, and the sound wave signals on the front side and the back side of the first loudspeaker component can be prevented from forming a loop, so that the sound box can output good sound quality; when the loudspeaker box is not required to be used, the elastic component and the telescopic mechanism are compressed and retracted, the cavity is opened, the space of the cavity is reduced, and therefore the loudspeaker box can save space and is convenient to carry. When the loudspeaker box is used again, the lifting device is lifted, and at the moment, the lifting device can drive the elastic component to return to the initial position to seal the cavity, so that the normal use function of the loudspeaker box is guaranteed.

Drawings

Fig. 1 is a schematic structural diagram of a sound box according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view of the loudspeaker of FIG. 1;

FIG. 3 is an exploded view of the loudspeaker of FIG. 1;

FIG. 4 is a schematic view of the elevating device of the speaker of FIG. 1 at an angle, wherein the battery mount is not shown;

FIG. 5 is a schematic view of the lifting device of FIG. 4 at another angle;

FIG. 6 is a schematic view of a portion of the lifting device of FIG. 4 exploded;

FIG. 7 is an exploded view of the lifting device of FIG. 4;

FIG. 8 is a cross-sectional view of the lift assembly of FIG. 4 with the speaker box operating normally and the bottom cover assembly in an initial position;

FIG. 9 is a cross-sectional view of the lift assembly of FIG. 4 with the speaker box not in use and the bottom cover assembly in a lowered position;

FIG. 10 is a schematic structural view of the first engaging component shown in FIG. 4;

FIG. 11 is an exploded view of the second snap-in assembly of FIG. 4;

FIG. 12 is a schematic view of the rocker of FIG. 11;

FIG. 13 is a schematic view of the third torsion spring of the lift device of FIG. 4;

FIG. 14 is a schematic view of a first elastic member of the lifting device of FIG. 4;

FIG. 15 is a schematic view of the lid assembly of FIG. 4;

FIG. 16 is an enlarged partial schematic view of the closure assembly at A of FIG. 15;

FIG. 17 is a schematic view of the elastic assembly of the speaker of FIG. 1;

FIG. 18 is a cross-sectional view of the spring assembly of FIG. 17;

FIG. 19 is an enlarged partial schematic view of the spring assembly at B of FIG. 18;

FIG. 20 is a cross-sectional view of the side housing assembly of FIG. 1;

fig. 21 is a schematic structural view of the first speaker stand of fig. 3;

FIG. 22 is an exploded view of the light emitting structure of the speaker of FIG. 1;

FIG. 23 is a schematic view of the battery mount of FIG. 3;

fig. 24 is an enlarged partial schematic view of the battery mount of fig. 23 at C.

In the figure: 100. a bottom shell module; 110. a bottom shell assembly; 120. a lifting device; 121. a telescoping mechanism; 1211. a first link; 1212. a second link; 1213. a first connecting shaft; 1214. a third torsion spring; 12141. a third spiral part; 12142. a fifth extension; 12143. a sixth extension; 12144. a hook structure; 1215. a first positioning sleeve; 122. a battery mounting base; 1221. a first bottom opening; 1222. a second wiring groove; 12221. circumferentially closing the hole wall; 12222. a groove wall is opened; 123. a bottom cover assembly; 1231. a lid assembly; 12311. a cover member; 12312. a seal; 12313. a cover body; 12314. a first boss; 12315. a first clamping groove; 123151, first side wall portion; 123152, second side wall portion; 123153, first side wall; 123154, second side wall; 123155, third side wall; 123156, fourth sidewall; 12316. a second clamping groove; 1234. a first elastic member; 12341. a first torsion spring; 12342. a second torsion spring; 12343. a connecting member; 12344. a first spiral portion; 12345. a first extension; 12346. a second extension; 12347. a second spiral part; 12348. a third extension; 12349. a fourth extension; 124. a top bracket; 1241. a support frame; 12411. a support plate body; 12412. a support arm; 12413. a first connecting piece; 12414. a second connecting piece; 12415. a third connecting piece; 12416. a fourth connecting piece; 1242. a support plate; 12421. a plate body portion; 12422. a connecting rib; 12423. a wiring part; 1243. an annular connecting member; 1244. a first wiring groove; 125. a bottom bracket; 126. a first clamping assembly; 1261. a first engagement portion; 1262. an introduction structure; 1263. a lead-out structure; 1264. a first clamping seat body; 12641. a cavity; 12642. a fifth sidewall; 12643. a sixth sidewall; 12644. a limit protrusion; 1265. a clamping table; 12651. a seventh sidewall; 12652. an eighth sidewall; 1266. a side avoidance opening; 1267. a second bottom opening; 127. a second clamping component; 1271. a second engaging portion; 1272. a second clamping seat body; 12721. a mounting cavity; 12722. a through hole; 1273. a rocker; 12731. a connecting arm; 12732. swing arms; 12733. a second boss; 12734. a swinging part; 1274. a second elastic member; 1281. a first sliding table; 1282. a first guide bar; 1283. a second sliding table; 1284. a second guide bar; 1285. a second connecting shaft; 1286. a third connecting shaft; 1287. a fourth connecting shaft; 1288. a fifth connecting shaft; 1291. a second positioning sleeve; 1292. a valve cover; 130. an elastic component; 131. a top opening; 132. a bellows; 1321. a corrugated portion; 13211. peak segment; 13212. trough segments; 1322. a first connection portion; 13221. a first extension; 13222. a first bending section; 1323. a second connecting portion; 13231. a second extension; 13232. a second bending section; 133. a first support; 134. a second support; 135. a reinforcement; 140. a cavity; 150. a side housing assembly; 151. a first housing; 152. a second housing; 1521. a connecting lug; 15211. a third connecting portion; 15212. a fourth connecting portion; 1522. a third engagement portion; 15221. a clamping groove body; 15222. a transition groove; 153. a housing chamber; 200. a top shell module; 210. a first speaker assembly; 211. a first speaker; 212. a first speaker bracket; 2121. a fourth engagement portion; 213. a speaker main board; 220. a top housing assembly; 221. a decorative cover; 222. an iron net; 230. a second speaker assembly; 231. a second speaker; 232. a second speaker bracket; 240. a light emitting structure; 241. a light emitting circuit board; 242. a light guide plate; 243. a light guide bracket; 244. a light diffusing member; 245. a rubber pad; 300. and a battery assembly.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.

Referring to fig. 1-24, a sound box according to an embodiment of the present invention includes a bottom shell module 100 and a top shell module 200, wherein the top shell module 200 is connected to the top of the elastic component 130, and the top shell module 200 includes a first speaker component 210 and a top shell component 220. The bottom shell module 100 includes a bottom shell assembly 110, a lifting device 120 with the bottom of the bottom shell assembly 110 is connected, and a bottom of the lifting device 120 is connected with an elastic assembly 130, the top of the lifting device 120 and the first speaker assembly 210 are both connected with the top of the elastic assembly 130, the top shell assembly 220 is connected to one side of the first speaker assembly 210, which is away from the elastic assembly 130, the lifting device 120 is arranged in the elastic assembly 130, the first speaker assembly 210, the elastic assembly 130 and the lifting device 120 enclose to form a cavity 140, and the lifting device 120 and the elastic assembly 130 are synchronously telescopic to adjust the size of the cavity 140 and control the opening or sealing of the cavity.

It can be understood that the first speaker assembly 210 includes a first speaker 211 and a first speaker bracket 212, two sides of the top of the elastic assembly 130 are respectively connected to the top of the first speaker bracket 212 and the top bracket 124, the first speaker 211 is mounted on a side of the first speaker bracket 212 facing away from the cavity 140, and the top shell assembly 220 covers a side of the first speaker 211 facing away from the elastic assembly 130.

In the sound box provided in the above embodiment, the position of the bottom cover assembly 123 is defined as the initial position or defined as the high position, and at this time, the cavity 140 is sealed and the space of the cavity 140 is maximum, so that the sound wave signals on the front and back sides of the first speaker 211 of the first speaker assembly 210 can be prevented from forming a loop, thereby ensuring that the sound box can output good sound quality. When the loudspeaker box is not needed to be used and the elastic component 130 and the lifting device 120 are compressed and retracted, the position of the bottom cover component 123 is defined as a low position, and at the moment, the cavity is opened and the cavity space is reduced, so that the space can be saved, and the loudspeaker box is convenient to carry. When the loudspeaker box is used again, the lifting device 120 is lifted, and at the moment, the lifting device 120 can drive the elastic component to return to the initial position to seal the cavity, so that the normal use function of the loudspeaker box is ensured.

As a preferred embodiment, the elastic member 130 is a hollow structure. The lifting device 120 includes a telescopic mechanism 121 disposed in the cavity 140, a battery mount 122 having a first bottom opening 1221, and a bottom cover assembly 123 mounted on the bottom of the telescopic mechanism 121 and movable with the telescopic mechanism 121 for controlling the opening and closing of the first bottom opening 1221, wherein the battery mount 122 is mounted on the bottom case assembly 110, and the bottom of the elastic assembly 130 and the bottom of the telescopic mechanism 121 are both connected to the battery mount 122. When the loudspeaker box is normally used, the bottom cover assembly 123 is covered and sealed to the first bottom opening 1221, the top shell module 200, the bottom cover assembly 123, the elastic assembly 130 and the battery mounting seat 122 enclose and form a sealed cavity 140, and the sound wave signals on the front side and the back side of the first loudspeaker 211 of the top shell module 200 can be prevented from forming a loop, so that the loudspeaker box can output good sound quality. When the loudspeaker box is not needed, the top shell module 200 of the loudspeaker box is pressed down, the acting force born by the top shell module 200 is transmitted to the elastic component 130 and the telescopic mechanism 121, the elastic component 130 and the telescopic mechanism 121 are compressed after being stressed, the telescopic mechanism 121 drives the bottom cover component 123 to open the first bottom opening 1221, and the top shell module 200 and the bottom cover component 123 are lowered to a low position, so that space can be saved, and the loudspeaker box is convenient to carry. When the speaker is used again, the telescopic mechanism 121 is lifted, and at this time, the telescopic mechanism 121 can drive the bottom cover assembly 123 to return to the initial position to close the first bottom opening 1221, and the bottom cover assembly 123 is lifted to the high position, so that the speaker can be used normally.

As shown in fig. 1 to 16, as a preferred embodiment, the lifting device 120 further includes a top bracket 124 for connecting to the top case module 200, a bottom bracket 125 connected to a side of the battery mount 122 facing away from the bottom case module 110, a first engaging member 126 mounted on a side of the top bracket 124 facing the bottom bracket 125, and a second engaging member 127 mounted on a side of the bottom bracket 125 facing the top bracket 124, wherein the first engaging member 126 is provided with a first engaging portion 1261, an introduction structure 1262 provided on one side of the first engaging portion 1261, and a discharge structure 1263 provided on the other side of the first engaging portion 1261, and the second engaging member 127 is provided with a second engaging portion 1271 capable of sliding along the introduction structure 1262 to engage with the first engaging portion 1261 and sliding along the discharge structure 1263 to disengage from the first engaging portion 1261.

When the speaker is not needed, a downward force is applied to the top support 124, and at this time, the telescopic mechanism 121 drives the top support 124 and the first locking component 126 to descend relative to the bottom support 125, and when the first locking component 126 moves down to contact with the second locking component 127, the second locking portion 1271 slides along the guiding structure 1262 to be locked on the first locking portion 1261 along with continuing to apply the downward force to the top support 124, and at this time, the force applied to the top support 124 is stopped, and the bottom cover component 123 descends to a low position. When the speaker is required to be used, a downward force is applied to the top bracket 124, and the second engagement portion 1271 slides along the guiding-out structure 1263 to disengage from the first engagement portion 1261 to form an unlocked state; after the second engagement portion 1271 is disengaged from the first engagement portion 1261, the downward force applied to the top bracket 124 is stopped, and at this time, the telescopic mechanism 121 can restore the top bracket 124 to the initial position, so as to ensure the normal use function of the sound box.

As a preferred embodiment, the first engaging assembly 126 includes a first engaging base 1264 mounted on the top bracket 124 and having a cavity 12641, and a clamping table 1265 protruding into the cavity 12641, the first engaging portion 1261 is disposed on the clamping table 1265, the cavity 12641 has a fifth side wall 12642 and a sixth side wall 12643 disposed opposite to each other, the clamping table 1265 has a seventh side wall 12651 and an eighth side wall 12652 disposed opposite to each other, the fifth side wall 12642 and the seventh side wall 12651 enclose to form an introducing structure 1262, and the sixth side wall 12643 and the eighth side wall 12652 enclose to form an discharging structure 1263. Further, first snap housing 1264 has a side relief opening 1266 in communication with cavity 12641 for sliding second snap 1271 along lead-in structure 1262 and lead-out structure 1263, and a second bottom opening 1267 in communication with cavity 12641 for sliding second snap 1271 into lead-in structure 1262 and out of lead-out structure 1263. The first engagement portion 1261 is a slot provided at the top of the clamping table 1265. It can be appreciated that the cavity 12641 further has a limiting protrusion 12644 spaced from the first engaging portion 1261 and disposed opposite to the first engaging portion 1261 for limiting the second engaging portion 1271 to the first engaging portion 1261, and the limiting protrusion 12644 can prevent the second engaging portion 1271 from being disengaged from the slot when the second engaging portion 1271 is engaged with the first engaging portion 1261, i.e., the slot. The cavity 12641 has an "M" shaped sidewall.

As a preferred embodiment, the second engaging assembly 127 includes a second engaging base 1272, a rocker 1273 and a second elastic member 1274, the rocker 1273 includes a connecting arm 12731 penetrating into the second engaging base 1272 and rotationally connected to the second engaging base 1272, and a swinging arm 12732 bending along one end of the connecting arm 12731 and extending outside the second engaging base 1272, the second engaging portion 1271 is disposed at one end of the swinging arm 12732 away from the connecting arm 12731, and the second elastic member 1274 is disposed in the second engaging base 1272 and elastically abuts between the connecting arm 12731 and the second engaging base 1272. The second clamping seat 1272 is provided with a mounting cavity 12721 for mounting the second elastic element 1274, a through hole 12722 communicated with the mounting cavity 12721 and used for allowing the connecting arm 12731 to pass through, and the rocker 1273 further comprises two second bosses 12733 which are respectively arranged at two ends of the connecting arm 12731 and are arranged outside the second clamping seat 1272. The swing arm 12732 includes a swing portion 12734 having one end connected to the connecting arm 12731 and a hook extending along an end of the swing portion 12734 away from the connecting arm 12731, and the second engaging portion 1271 is a hook. In one embodiment, the second elastic member 1274 is a spring.

When the first engaging member 126 moves down to the position of the second bottom opening 1267 of the first engaging member 126 and the top of the second engaging portion 1271 are level, the downward force is continuously applied to the top stand 124, the elastic member 130 and the telescopic mechanism 121 compress and retract, the second engaging portion 1271 slides into the guiding structure 1262 from the second bottom opening 1267 and slides along the guiding structure 1262 until the second engaging portion 1271 is engaged with the first engaging portion 1261 to form a locking state, at this time, the force applied to the top stand 124 is stopped, the bottom cover member 123 is lowered to the low position, and the bottom cover member 123 opens the first bottom opening 1221. When the speaker is needed, a downward force is applied to the top bracket 124, the second engagement portion 1271 is disengaged from the first engagement portion 1261 and slides into the guiding structure 1263, and the second engagement portion 1271 slides along the guiding structure 1263 and slides out of the second bottom opening 1267, so that the second engagement portion 1271 and the first engagement portion 1261 form an unlocked state; after the second engagement portion 1271 is disengaged from the first engagement portion 1261, the downward force applied to the top bracket 124 is stopped, and at this time, the telescopic mechanism 121 can restore the top bracket 124 and the bottom cover assembly 123 to the initial positions, so as to realize lifting of the top case module 200.

As a preferred embodiment, the telescopic mechanism 121 includes a first link 1211 and a second link 1212 with a middle portion hinged to the first link 1211. One end of the first link 1211 is slidably coupled to the top bracket 124 and the other end is fixedly coupled to the bottom bracket 125. One end of the second link 1212 is fixedly coupled to the top bracket 124 and the other end is slidably coupled to the bottom bracket 125.

Further, the telescopic mechanism 121 further includes a first connecting shaft 1213 penetrating the first and second links 1211 and 1212, and a third torsion spring 1214 mounted on the first connecting shaft 1213. The telescopic mechanism 121 further comprises two first positioning sleeves 1215 provided between the first and second links 1211, 1212 for positioning the first and second links 1211, 1212 to prevent the first and second links 1211, 1212 from interfering with each other during telescopic operation. The first connecting shaft 1213 is penetrated through the first connecting rod 1211, the first positioning sleeve 1215, the second connecting rod 1212 and the third torsion spring 1214, and one end radial dimension of the first connecting shaft 1213 is larger than the radial dimension of other parts of the first connecting shaft 1213, and the other end is in interference fit with the first connecting shaft 1213, the first connecting rod 1211, the first positioning sleeve 1215, the second connecting rod 1212 and the third torsion spring 1214 through a U-shaped snap ring. The third torsion spring 1214 includes a third spiral portion 12141 sleeved on the first connecting shaft 1213, a fifth extending portion 12142 bent along one end of the third spiral portion 12141 and engaged with the second connecting rod 1212, and a sixth extending portion 12143 bent along the other end of the third spiral portion 12141 away from the fifth extending portion 12142. The torsional moment of the third screw portion 12141 is transmitted to the second connecting rod 1212 to be restored or the torsional moment of the second connecting rod 1212 is transmitted to the third screw portion 12141 through the fifth extension portion 12142, and when the third screw portion 12141 is axially deformed, the torsional moment can be ensured to be applied to the second connecting rod 1212 which reciprocates, and the restoring of the telescopic mechanism 121 can be ensured. It will be appreciated that the end of the fifth extension 12142 remote from the third coiled portion 12141 is bent towards the third coiled portion 12141 to form the hook structure 12144 such that the third torsion spring 1214 is in good engagement with the second link 1212.

The lifting device 120 further comprises at least two first sliding tables 1281 connected with the second connecting rod 1212 and arranged on one side of the bottom bracket 125 facing the telescopic mechanism 121, and first guide rods 1282 which are the same in number as the first sliding tables 1281 and are in sliding fit with the first sliding tables 1281, wherein the first guide rods 1282 are fixed on the bottom bracket 125. The side of the top bracket 124 facing the bottom bracket 125 is provided with a second sliding table 1283 connected with the first link 1211 and a second guide bar 1284 slidably engaged with the second sliding table 1283 and fixed to the top bracket 124.

It will be appreciated that the lifting device 120 further comprises a first connection assembly for connecting the first link 1211 with the bottom bracket 125 and a second connection assembly for connecting the second link 1212 with the two first slides 1281. The first connection assembly includes a third connection shaft 1286 and a U-shaped snap ring, and the second connection assembly includes a fifth connection shaft 1288 and a U-shaped snap ring.

One end of the first connecting rod 1211 is connected with the second sliding table 1283 through a second connecting shaft 1285 and a U-shaped clamping ring, the second sliding table 1283 is sleeved on the second guide rod 1284, and the other end of the first connecting rod 1211 is fixedly connected with the bottom bracket 125 through a third connecting shaft 1286 and the U-shaped clamping ring. One end of the second connecting rod 1212 is fixedly connected with the top bracket 124 through a fourth connecting shaft 1287 and a U-shaped snap ring, and the other end of the second connecting rod 1212 is connected with the second sliding table 1283 through a fifth connecting shaft 1288 and a U-shaped snap ring. The first link 1211 of the telescopic mechanism 121 slides along the second guide rod 1284 through the second sliding table 1283, and the second link 1212 of the telescopic mechanism 121 slides along the first guide rod 1282 through the first sliding table 1281, so that the telescopic mechanism 121 drives the top bracket 124 and the first clamping assembly 126 to perform lifting motion relative to the bottom bracket 125.

The top support 124 includes a support 1241, a support 1242 and an annular connecting member 1243, the support 1242 is fixed on the support 1241 by screws, bolts, buckles, or adhesives, and the support 1241 includes a support 12411, at least two support arms 12412 disposed on a side of the support 12411 facing away from the bottom support 125 and having a top end connected to the annular connecting member 1243, and a first connection structure disposed on a side of the support 12411 facing the bottom support 125 and used for connecting with a second guide rod 1284. The support arm 12412 is connected with the annular connecting piece 1243 in a laser welding mode, compared with butt-welding processing, the flatness of the annular connecting piece 1243, which is far away from the supporting plate 12411, can be controlled within 0.1mm, the flatness of the annular connecting piece 1243, which is far away from the supporting plate 12411, is greatly improved, and the overall flatness of the loudspeaker box is further improved. The number of the second guide rods 1284 is two, the first connecting structure comprises a first connecting piece 12413, a second connecting piece 12414, a third connecting piece 12415 and a fourth connecting piece 12416 which are arranged at intervals, the first connecting piece 12413, the second connecting piece 12414, the third connecting piece 12415 and the fourth connecting piece 12416 are all provided with connecting holes, one second guide rod 1284 penetrates through the connecting holes of the first connecting piece 12413 and the connecting holes of the third connecting piece 12415, one end of the second guide rod 1284 is larger than the middle, and the other end of the second guide rod 1284 is fixed through the interference fit of a U-shaped clamping ring; the other second guide rod 1284 is inserted through the connecting hole of the second connecting piece 12414 and the connecting hole of the fourth connecting piece 12416, one end of the second guide rod 1284 is larger than the middle, and the other end of the second guide rod 1284 is fixed by the interference fit of the U-shaped clamping ring. The connecting holes on the first connecting piece 12413, the second connecting piece 12414, the third connecting piece 12415 and the fourth connecting piece 12416 are punched through the die, and then secondary machining reaming is performed on the small hole punched through the die through a reaming device such as a drill bit, so that the connecting holes of the first connecting piece 12413 and the connecting holes of the third connecting piece 12415 can be concentric, and the connecting holes of the second connecting piece 12414 and the connecting holes of the fourth connecting piece 12416 can be concentric, so that the overall flatness of the loudspeaker box can be guaranteed. It can be appreciated that the number of the first guide bars 1282 is two, and the bottom bracket 125 has a second connection structure connected to the first guide bars 1282, and the second connection structure is the same as the first connection structure, which is not described herein.

As shown in fig. 1-9 and fig. 14-16, as a preferred embodiment, the bottom cover assembly 123 includes a cover assembly 1231 for covering the first bottom opening 1221 and a first elastic member 1234 fixed to the bottom of the telescopic mechanism 121 to drive the cover assembly 1231 to cover the first bottom opening 1221 or to open the first bottom opening 1221 under the driving of the telescopic mechanism 121.

As shown in fig. 14, further, the first elastic member 1234 includes a first torsion spring 12341 mounted on the fifth connecting shaft 1288, a second torsion spring 12342 mounted on the fifth connecting shaft 1288 and disposed at a distance from the first torsion spring 12341, and a connecting member 12343 connected between the first torsion spring 12341 and the second torsion spring 12342. It can be appreciated that the bottom cover assembly 123 further includes a second positioning sleeve 1291, and the fifth connecting shaft 1288 sequentially passes through the first torsion spring 12341, the second positioning sleeve 1291 and the second torsion spring 12342, so that the first torsion spring 12341 and the second torsion spring 12342 can be prevented from interfering with each other during the telescoping process of the lifting device 120. The first torsion spring 12341 includes a first spiral portion 12344, a first extension portion 12345 and a second extension portion 12346, the first spiral portion 12344 is sleeved on the fifth connecting shaft 1288, the first extension portion 12345 extends along one end of the first spiral portion 12344 in a bending manner and abuts against the first connecting rod 1211, and the second extension portion 12346 extends along the other end of the first spiral portion 12344 in a bending manner and is connected with the connecting member 12343. The second torsion spring 12342 includes a second spiral portion 12347, a third extension portion 12348, and a fourth extension portion 12349, where the second spiral portion 12347 is sleeved on the fifth connecting shaft 1288, the third extension portion 12348 extends along one end of the second spiral portion 12347 in a bending manner and abuts against the first connecting rod 1211, and the fourth extension portion 12349 extends along the other end of the second spiral portion 12347 in a bending manner and is connected to the connecting member 12343. The second extension portion 12346 and the fourth extension portion 12349 are connected to the cover assembly 1231, respectively.

As shown in fig. 15 and 16, it can be appreciated that the cover assembly 1231 includes a cover member 12311 and a sealing member 12312 mounted on an end of the cover member 12311 remote from the telescopic mechanism 121, and a valve cover 1292 for improving the sealing performance of the cover assembly 1231 is provided on a side of the sealing member 12312 remote from the cavity 140. In this embodiment, the valve cover 1292 is made of a rubber material. The cover member 12311 includes a cover body 12313 and a first boss 12314 provided on the side of the cover body 12313 facing the telescopic mechanism 121. The first boss 12314 is provided with a first locking groove 12315 for locking the second extension part 12346 and a second locking groove 12316 for locking the fourth extension part 12349 at both sides thereof. The first clamping groove 12315 has a first side wall portion 123151 and a second side wall portion 123152 disposed opposite to each other, the first side wall portion 123151 includes a first side wall 123153 and a second side wall 123154 extending along an end of the first side wall 123153 toward the second side wall portion 123152 and bending away from the second side wall portion 123152, the second side wall portion 123152 includes a third side wall 123155 and a fourth side wall 123156, the third side wall 123155 is disposed opposite to the first side wall 123153, the fourth side wall 123156 is disposed opposite to the second side wall 123154, and the fourth side wall 123156 extends along an end of the third side wall 123155 toward the first side wall portion 123151 and bending away from the first side wall portion 123151. The distance between the connection of the first side wall 123153 and the second side wall 123154 and the connection of the third side wall 123155 and the fourth side wall 123156 is adapted to the circumferential dimension of the second extension 12346, so that the second extension 12346 is not easily separated from the lid assembly 1231 during the telescoping of the telescoping mechanism 121. The second locking groove 12316 has the same structure as the first locking groove 12315, and will not be described herein. In an embodiment, the second extension 12346 is the same as the extension direction of the first guide bar 1282. The fourth extension 12349 is identical to the extension direction of the first guide bar 1282.

As shown in fig. 1-3 and 17-19, as a preferred embodiment, the speaker includes a top case module 200 and the bottom case module 100 of the speaker as above, the top case module 200 being connected to the top of the elastic member 130. The top case module 200 includes a first speaker assembly 210 and a top case assembly 220, the first speaker assembly 210 includes a first speaker 211 and a first speaker bracket 212, two sides of the top of the elastic assembly 130 are respectively connected to the top of the first speaker bracket 212 and the top of the top bracket 124, the first speaker 211 is mounted on a side of the first speaker bracket 212 facing away from the top bracket 124, and the top case assembly 220 covers a side of the first speaker 211 facing away from the elastic assembly 130. In an embodiment, the sound box housing includes a bottom shell mechanism, an elastic component 130 and a top shell module 200, the bottom shell mechanism includes a battery mounting base 122, a bottom cover component 123 and a bottom bracket 125, the bottom shell mechanism and the elastic component 130 enclose to form a cavity 140, one end of the elastic component 130 is connected to one side of the battery mounting base 122 facing the cavity 140, and the bottom bracket 125 is disposed in the elastic component 130 and connected to one side of the battery mounting base 122 facing the cavity 140. The end of the elastic component 130 facing away from the bottom shell mechanism is provided with a top opening 131 communicated with the cavity, and the first speaker component 210 of the top shell module 200 is connected to the end of the elastic component 130 facing away from the bottom shell mechanism and seals the top opening 131. The elastic member 130 is a hollow bellows member. The elastic assembly 130 includes a bellows 132 and a first support 133 engaged with a peripheral wall of the bellows 132 for supporting the bellows 132, which is configured to enable the bellows 132 to be elastically deformed by an external force on the one hand; on the other hand, when no external force is applied, the structure can ensure that the elastic component 130 has certain rigidity, and can avoid the problem that the corrugated pipe 132 is easy to shake to reduce the experience of a user under the condition that vibration and the like occur in the working process of the sound box.

The bellows 132 includes a bellows portion 1321 having a wave shape, a first connection portion 1322 provided at one end of the bellows portion 1321 for connection with the first speaker bracket 212, and a second connection portion 1323 provided at the other end of the bellows portion 1321 for connection with the battery mount 122. The first connection portion 1322 includes a first extension portion 13221 and a first bending portion 13222 for connecting with the first speaker bracket 212, the first extension portion 13221 extends from one end of the corrugated portion 1321 along a length direction of the corrugated portion 1321 toward a direction away from the second connection portion 1323, and the first bending portion 13222 bends and extends from one end of the first extension portion 13221 away from the corrugated portion 1321 toward the cavity 140. The second connection portion 1323 includes a second extension portion 13231 and a second bending portion 13232 for connecting with the battery mount 122, the second extension portion 13231 extends from the other end of the corrugated portion 1321 along the length direction of the corrugated portion 1321 toward a direction away from the first connection portion 1322, and the second bending portion 13232 bends and extends from the end of the second extension portion 13231 away from the corrugated portion 1321 away from the cavity 140. In one embodiment, the first bending segment 13222 and the first extending segment 13221 have an included angle of 85 ° to 95 °. The second bending section 13232 and the second extending section 13231 have an included angle of 85 ° to 95 °. When the top case module 200 receives a vertically downward force, the force received by the top case module 200 can be maximally transferred to the bellows 132 in the length direction of the bellows 132 within the angle range. The corrugated portion 1321 includes a plurality of peak segments 13211 and a plurality of valley segments 13212, and each peak segment 13211 and each valley segment 13212 are alternately arranged along the length direction of the corrugated portion 1321, and the first supporting member 133 is tightly fitted to the inner wall of the peak segment 13211 to better support the bellows 132. In one embodiment, the number of first supports 133 is the same as the number of peak sections 13211 to better support the bellows 132. The first support 133 is ring-shaped. The first support 133 is a member made of plastic or glass fiber or aramid fiber or metal.

To better support the bellows 132, the elastic assembly 130 further includes a second support 134 that is a tight fit to the outer wall of the valley segments 13212. The number of second supports 134 is the same as the number of valley segments 13212 to better support the bellows 132. The second support 134 is ring-shaped. The second support 134 is a member made of plastic or glass fiber or aramid fiber or metal. The elastic component 130 further includes a reinforcing member 135 sleeved on the second connecting portion 1323 at the side facing away from the bottom shell mechanism. Specifically, the reinforcement member 135 is connected to the outer portion of the first bending section 13222 on the side facing away from the bottom shell mechanism. The reinforcement 135 is a member made of plastic or glass fiber or aramid fiber or metal.

The cavity 140 in the above embodiment is formed by the bottom shell mechanism and the elastic component 130, the inner wall of the elastic component 130 forms the side wall of the cavity 140, and the elastic component 130 can adjust the space size of the cavity 140 to adapt to the requirements of different occasions. For example, when the loudspeaker box is not needed, the top shell module 200 is pressed down, and the top shell module 200 is subjected to a downward acting force, so that the elastic component 130 can be correspondingly compressed, thereby saving the space of the loudspeaker box, enabling the loudspeaker box to be miniaturized and convenient to carry and place.

As shown in fig. 1-3 and fig. 20-21, as a preferred embodiment, the bottom shell module 100 further includes a side shell assembly 150, the side shell assembly 150 includes a first shell 151 and a second shell 152 sleeved inside the first shell 151 and abutting against the first shell 151, the bottom of the second shell 152 is connected with the bottom shell assembly 110 and encloses a receiving cavity 153, and the elastic assembly 130 and the lifting device 120 are both disposed in the receiving cavity 153. The first housing 151 is a housing made of aluminum, and the second housing 152 is a housing made of plastic material. The side housing assembly 150 of the above embodiment adopts a double-layer structure, the outer first housing 151 is made of an aluminum material, and the inner second housing 152 is made of plastic, so that the usage amount of the aluminum material is reduced on the premise of ensuring that the appearance is not changed, and further the raw material cost is greatly reduced.

It will be appreciated that the second housing 152 is an interference fit with the first housing 151. The thickness of the first housing 151 is 1.20mm to 1.60mm, and the thickness of the second housing 152 is 1.40mm to 1.80mm, so that the side housing assembly 150 is attractive in appearance and can reduce the amount of aluminum materials on the basis of providing protection for the internal components of the sound box from damage, thereby greatly reducing the cost of raw materials. Specifically, the thickness of the first housing 151 is 1.45mm, and the thickness of the second housing 152 is 1.55mm. In one embodiment, the second housing 152 is a housing made of ABS containing 10% fiberglass.

The end of the second housing 152 facing the bottom shell assembly 110 is provided with a plurality of connection lugs 1521 connected to the bottom shell assembly 110. The second housing 152 is a cylindrical housing, and the connection lugs 1521 extend toward the bottom housing assembly 110 from an end of the second housing 152 toward the bottom housing assembly 110 in an axially parallel manner to the second housing 152. The connection lug 1521 includes a third connection portion 15211 connected to an inner wall of the second housing 152 and a fourth connection portion 15212 extending toward the bottom chassis assembly 110 along an end of the third connection portion 15211 toward the bottom chassis assembly 110 for connection with the bottom chassis assembly 110.

It will be appreciated that the bottom housing assembly 110 is fixedly coupled to the battery mount 122 by fasteners such as screws. The locking member, such as a screw, is inserted through the fourth connection portion 15212 and fixes the fourth connection portion 15212 to the side portion of the battery mount 122, thereby fixing the second housing 152 to the battery mount 122. In one embodiment, the number of the connecting lugs 1521 is four, two of which are adjacent and spaced apart, and the other two of which are symmetrically disposed with respect to the two connecting lugs 1521 along the circumferential direction of the second housing 152 at one end of the second housing 152 facing the bottom shell assembly 110.

As a preferred embodiment, a third engaging portion 1522 for engaging with the first speaker bracket 212 is further provided on the inner wall of the second housing 152, the third engaging portion 1522 extends away from the connecting lug 1521 along an end of the second housing 152 facing the connecting lug 1521, and an extension length of the third engaging portion 1522 is smaller than an axial extension length of the second housing 152. In an embodiment, the third engaging portion 1522 is a slot. The third engaging portion 1522 includes a slot body 15221 and a transition slot 15222 extending from an end of the slot body 15221 facing the connection lug 1521, the transition slot 15222 extending from an end of the second housing 152 facing the connection lug 1521 to the slot body 15221 in a gradually decreasing width. The first speaker bracket 212 is provided with a fourth engagement portion 2121 that engages with the third engagement portion 1522. When the third engaging portion 1522 is a slot, the fourth engaging portion 2121 is a protrusion.

As can be appreciated, as shown in fig. 1-3 and 22, the top case module 200 further includes a second speaker assembly 230 and a light emitting structure 240, the second speaker assembly 230 includes a second speaker 231 and a second speaker bracket 232, the second speaker 231 is mounted on a side of the second speaker bracket 232, and the second speaker bracket 232 is mounted on a side of the first speaker bracket 212 facing away from the cavity 140 by a locking member such as a screw. The top case assembly 220 includes a decorative cover 221 disposed on the top of the sound box and an iron net 222 sleeved outside the second speaker bracket 232, and the light emitting structure 240 is disposed between the decorative cover 221 and the second speaker bracket 232. The light emitting structure 240 includes a light emitting circuit board 241, light emitting members (not labeled) disposed on the light emitting circuit board 241 at intervals, a light guide plate 242 connected to the light emitting circuit board 241, a light guide bracket 243 disposed on a side of the light guide plate 242 away from the light emitting circuit board 241, and a light diffusing member 244 for being sleeved outside the decorative cover 221, wherein the light emitting circuit board 241 and the light guide plate 242 are disposed in the light diffusing member 244, and the decorative cover 221 is disposed above the light emitting circuit board 241. A rubber gasket 245 is further disposed between the decorative cover 221 and the light-emitting circuit board 241, and the rubber gasket 245, the light-emitting circuit board 241, the light guide plate 242, and the light guide bracket 243 are fixed to the second speaker bracket 232 by locking members such as screws, and the decorative cover 221 is adhered to the rubber gasket 245. The light emitting structure 240 can uniformly diffuse the light emitted by the light emitting part to the outside of the sound box, so that the user experience is better improved.

In an assembled embodiment, the bottom shell assembly 110, the battery mount 122 and the bottom bracket 125 are locked and fixed by screws, the bottom of the bellows 132 and the reinforcement member 135 are fixed on the battery mount 122 by screws to fix the elastic assembly 130, and the screws lock the first speaker 211, the first speaker bracket 212, the uppermost end of the elastic assembly 130 and the top bracket 124, so that the first speaker assembly 210, the elastic assembly 130 and the lifting device 120 are fixedly connected to obtain a first combined structure. The fourth engagement portion 2121 of the first speaker bracket 212 of the first combination structure slides into the side housing assembly 150 along the third engagement portion 1522 from the side of the side housing assembly 150 facing the connection lug 1521, and the connection lug 1521 is locked to the side of the battery mount 122 by a screw, thereby obtaining a second combination structure. The second speaker support 232 is locked on the first speaker support 212 through screws, so that the second speaker assembly 230 is fixed, the iron net 222 is sleeved outside the second speaker assembly 230, the light-emitting structure 240 is fixed on the second speaker support 232 through locking pieces such as screws, the decorative cover 221 is installed above the light-emitting structure 240, and then the assembly of the whole sound box is completed. After the first combination structure is assembled, the fourth engagement portion 2121 of the first speaker bracket 212 slides into the side housing assembly 150 along the third engagement portion 1522 from the side of the side housing assembly 150 facing the connection lug 1521, and the connection lug 1521 is locked to the side of the battery mount 122 by a screw, so that the first combination structure and the side housing assembly 150 are assembled, and compared with the connection lug extending from the end of the second housing 152 facing the bottom housing assembly 110 by bending 90 degrees, the fourth engagement portion does not need to be forcibly engaged into the third engagement portion from the end of the second housing 152 facing away from the connection lug, thereby realizing the assembly of the first combination structure and the side housing assembly 150, and the assembly is simple and convenient.

As shown in fig. 1-9 and 23-24, as a preferred embodiment, the sound box further includes a battery assembly 300 and a cable having one end connected to the first speaker assembly 210 of the sound box and the other end connected to the battery mount 122 of the sound box, the lifting device 120 further includes a wire barrel (not shown) having a through slot (not shown), a battery mount chamber (not shown) for mounting the battery assembly 300, a first connection terminal (not shown) for connecting with the battery assembly 300, and a second connection terminal (not shown) for connecting with the battery assembly 300 are provided on the battery mount 122, a first wire slot 1244 through which the cable passes is provided on a side portion of the top bracket 124, a second wire slot 1222 through which the cable passes and communicates with the battery mount chamber is provided on the battery mount 122, and the cable sequentially passes through the first wire slot 1244, the through slot, and the second wire slot 1222 to be electrically connected with the first connection terminal and the second connection terminal.

In the wiring manner of the above embodiment, the cable led out of the first speaker assembly 210 is threaded through the first wiring groove 1244 at the side of the top bracket 124, and then is threaded through the through groove of the wiring barrel and the second wiring groove 1222 on the battery mounting seat 122, and then enters the battery mounting cavity, so that one end of the cable led out of the first speaker assembly 210 is limited by the first wiring groove 1244, the other end is limited by the second wiring groove 1222, and the middle part is limited by the through groove of the wiring barrel, thereby the cable led out of the first speaker assembly 210 is not easy to fail in the telescoping process of the telescoping mechanism 121, and the cable led out of the first speaker assembly 210 does not interfere the movement of other components of the sound box due to the scattered arrangement.

It is understood that the support plate 1242 includes a plate body 12421, a connecting rib 12422 extending along a sidewall of the plate body 12421, and a wire portion 12423 disposed at an end of the connecting rib 12422 facing away from the plate body 12421, where the first wire groove 1244 is disposed on the wire portion 12423. The first speaker assembly 210 further includes a speaker motherboard 213 disposed above the support plate 1242 and electrically connected to the first speaker 211. The number of the routing parts 12423 is two, and the two routing parts 12423 are respectively arranged at two opposite sides of the supporting plate 1242, so that cables with one ends electrically connected with the speaker main board 213 can be routed from two sides of the supporting plate 1242, and routing is simple, safe and reliable. The first wiring groove 1244 extends in the horizontal direction. The extending direction of the second wiring groove 1222 is perpendicular to the extending direction of the first wiring groove 1244.

Further, the inner wall of the second wiring groove 1222 includes a circumferentially closed circumferential hole-closing wall 12221 and a grooved wall 12222 with a side notch in the circumferential direction, and the grooved wall 12222 extends from one end of the circumferential hole-closing wall 12221 near the top bracket 124 toward the top bracket 124 to better limit the cable. The circumferential closing hole wall 12221 is a cylindrical curved surface, the slotted wall 12222 is a circular arc curved surface, and the radius of the circumferential closing hole wall 12221 is equal to the radius of the slotted wall 12222. The slotted wall 12222 is semi-circular in shape. The wiring cylinder is a hollow cylindrical pipe.

The above embodiments are only preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are intended to be within the scope of the present invention as claimed.

Claims

1. A sound box is characterized by comprising a top shell module and a bottom shell module, wherein the top shell module comprises a first loudspeaker assembly and a top shell assembly, the bottom shell module comprises a bottom shell assembly, a lifting device with the bottom connected with the bottom shell assembly and an elastic assembly with the bottom connected with the lifting device, the top of the lifting device and the first loudspeaker assembly are both connected with the top of the elastic assembly, the top shell assembly is connected to one side of the first loudspeaker assembly, which is far away from the elastic assembly, the lifting device is arranged in the elastic assembly, the first loudspeaker assembly, the elastic assembly and the lifting device are enclosed to form a cavity, the lifting device and the elastic assembly are synchronously telescopic to adjust the size of the cavity and control the opening or sealing of the cavity, the lifting device comprises a telescopic mechanism positioned in the cavity, a battery mounting seat with a first bottom opening, a bottom cover assembly which is arranged at the bottom of the telescopic mechanism and can move along with the telescopic mechanism for controlling the first bottom opening switch, the battery mounting seat is arranged on the bottom shell assembly, the bottom of the elastic assembly and the bottom of the telescopic mechanism are both connected to the battery mounting seat, the first loudspeaker assembly, the bottom cover assembly, the elastic assembly and the battery mounting seat are enclosed to form the cavity, the lifting device also comprises a top bracket used for being connected with the elastic assembly, a bottom bracket connected with one side of the battery mounting seat, which is far away from the bottom shell assembly, a first clamping assembly arranged at one side of the top bracket, which is far away from the bottom bracket, and a second clamping assembly arranged at one side of the bottom bracket, which is far away from the top bracket, the first clamping assembly is provided with a first clamping part, an introduction structure arranged on one side of the first clamping part and a derivation structure arranged on the other side of the first clamping part, the second clamping assembly is provided with a second clamping part which can slide along the introduction structure to be buckled with the first clamping part and can slide along the derivation structure to be separated from the first clamping part, the telescopic mechanism comprises a first connecting rod and a second connecting rod, the middle part of the second connecting rod is hinged with the first connecting rod, one end of the first connecting rod is in sliding connection with the top support, and the other end of the first connecting rod is fixedly connected with the bottom support; one end of the second connecting rod is fixedly connected with the top support, the other end of the second connecting rod is in sliding connection with the bottom support, the lifting device further comprises at least two first sliding tables which are connected with the second connecting rod and are arranged on one side of the bottom support, facing the telescopic mechanism, and first guide rods which are the same in number with the first sliding tables and are in sliding fit with the first sliding tables, and the first guide rods are fixed on the bottom support; and/or the number of the groups of groups,

2. The sound box according to claim 1, wherein the first clamping assembly comprises a first clamping seat body mounted on the top support and provided with a concave cavity and a clamping table protruding into the concave cavity, the first clamping portion is arranged on the clamping table, the concave cavity is provided with a first side wall and a second side wall which are oppositely arranged, the clamping table is provided with a third side wall and a fourth side wall which are oppositely arranged, the first side wall and the third side wall are enclosed to form the lead-in structure, and the second side wall and the fourth side wall are enclosed to form the lead-out structure.

3. The sound box according to claim 1, wherein the bottom cover assembly comprises a cover assembly for covering the first bottom opening and a first elastic member fixed to the bottom of the telescopic mechanism to drive the cover assembly to cover the first bottom opening or open the first bottom opening under the driving of the telescopic mechanism.

4. A sound box according to any one of claims 1-3, wherein the bottom shell module further comprises a side shell assembly, the side shell assembly comprises a first shell and a second shell sleeved inside the first shell and abutted against the first shell, the bottom of the second shell is connected with the bottom shell assembly and surrounds to form a containing cavity, and the elastic assembly and the lifting device are both arranged in the containing cavity.

5. A sound box according to any one of claims 1-3, wherein the elastic assembly comprises a bellows and a first support cooperating with a peripheral wall of the bellows for supporting the bellows.

6. A sound box according to any one of claims 1 to 3, wherein the top case assembly comprises a decorative cover and a light emitting structure arranged between the first speaker assembly and the decorative cover, the light emitting structure comprises a circuit board, light emitting members arranged on the circuit board at intervals, a light guide plate connected with the circuit board, a light guide bracket arranged on one side of the light guide plate away from the circuit board, and a light diffusion member arranged outside the decorative cover in a sleeved manner, and the circuit board and the light guide plate are arranged in the light diffusion member.