CN109348354B - Lifting device of sound box and sound box - Google Patents

Lifting device of sound box and sound box Download PDF

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Publication number
CN109348354B
CN109348354B CN201811073662.6A CN201811073662A CN109348354B CN 109348354 B CN109348354 B CN 109348354B CN 201811073662 A CN201811073662 A CN 201811073662A CN 109348354 B CN109348354 B CN 109348354B
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China
Prior art keywords
clamping
support
sound box
assembly
top support
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CN201811073662.6A
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CN109348354A (en
Inventor
陈超
韦北进
叶新
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Shenzhen Fenda Technology Co Ltd
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Shenzhen Fenda Technology Co Ltd
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Priority to CN201811073662.6A priority Critical patent/CN109348354B/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

The invention discloses a lifting device of a sound box and the sound box, wherein the sound box comprises a top support, a bottom support, a telescopic mechanism, a first clamping assembly and a second clamping assembly, wherein the top support is used for being connected with a top shell assembly of the sound box, the bottom support is used for being connected with a bottom shell assembly of the sound box, the telescopic mechanism is connected between the top support and the bottom support, the first clamping assembly is installed on one side, facing the bottom support, of the top support, the second clamping assembly is installed on one side, facing the top support, of the bottom support, a first clamping part, an introduction structure is arranged on one side of the first clamping part, and an export structure is arranged on the other side of the first clamping part, and the second clamping assembly is provided with a second clamping part which can slide to be buckled with the first clamping part along the introduction structure and can slide to be separated from the first clamping part along the export structure. The lifting device of the sound box does not need to be provided with an electric driving mechanism and a control system for controlling the electric driving mechanism to work, and has the advantages of simple structure, simple maintenance and production cost reduction.

Description

Lifting device of sound box and sound box
Technical Field
The invention relates to the technical field of sound boxes, in particular to a lifting device of a sound box and the sound box.
Background
The sound box is a terminal of the whole sound system, and is used for converting audio electric energy into corresponding sound energy and radiating the sound energy into space, and is an extremely important component of the sound system and is used for converting an electric signal into an acoustic signal for direct listening by human ears. However, the existing lifting sound box drives the top shell assembly to lift through an electric driving mechanism such as a motor, and the lifting mode not only needs to additionally arrange the electric driving mechanism, but also needs to arrange a control system for controlling the electric driving mechanism to work, so that the structure is complex, the production cost is high, and the maintenance difficulty is increased.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the lifting device of the loudspeaker box and the loudspeaker box, wherein the lifting device does not need to be provided with an electric driving mechanism and a control system for controlling the electric driving mechanism to work, and the lifting device is simple in structure, easy to maintain and low in production cost.
The invention adopts the following technical scheme:
the utility model provides a elevating gear of audio amplifier, includes the top support that is used for being connected with the top shell subassembly of audio amplifier, is used for the bottom support that is connected with the drain pan subassembly of audio amplifier, connect in telescopic machanism between top support and the bottom support, install in the orientation of top support the first block subassembly of bottom support one side and install in the orientation of bottom support the second block subassembly of top support one side, be equipped with first block portion on the first block subassembly, locate the import structure of first block portion one side and locate the export structure of first block portion opposite side, be equipped with on the second block subassembly can follow import structure slip to lock first block portion and can follow export structure slip break away from the second block portion of first block portion.
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 first clamping seat body is provided with a side position avoidance opening communicated with the concave cavity for the second clamping part to slide along the guiding-in structure and the guiding-out structure, and a bottom opening communicated with the concave cavity for the second clamping part to slide into the guiding-in structure and slide out of the guiding-out structure; and/or the first clamping part is a clamping groove arranged at the top of the clamping table.
Further, the second clamping assembly comprises a second clamping seat body, a rocker and an elastic piece, wherein the rocker comprises a connecting arm penetrating through the second clamping seat body and rotationally connected with the second clamping seat body and a swinging arm bending and extending out of the second clamping seat body along one end of the connecting arm, the second clamping portion is arranged at one end, far away from the connecting arm, of the swinging arm, and the elastic piece is arranged in the second clamping seat body and elastically abuts against the connecting arm and the second clamping seat body.
Further, the second clamping seat body is provided with a cavity for installing the elastic piece and a through hole communicated with the cavity and used for allowing the connecting arm to penetrate through, and the rocker further comprises two bosses which are respectively arranged at two ends of the connecting arm and arranged outside the second clamping seat body.
Further, the swinging arm comprises a swinging part with one end connected with the connecting arm and a hook body which is bent and extended along one end of the swinging part, which is far away from the connecting arm, and the second clamping part is the hook body.
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 telescopic mechanism further comprises a first connecting shaft penetrating through the first connecting rod and the second connecting rod and a torsion spring arranged on the first connecting shaft, wherein the torsion spring comprises a spiral part sleeved on the first connecting shaft, a first extending part bent and extended along one end of the spiral part and clamped on the second connecting rod, and a second extending part bent and extended along the other end of the spiral part and deviating from the first extending part; and/or the number of the groups of groups,
a first sliding table connected with the first connecting rod and a first guide rod which is in sliding fit with the first sliding table and is fixed on the top support are arranged on one side of the top support, which faces the bottom support; and/or the number of the groups of groups,
at least two second sliding tables connected with the second connecting rods and second guide rods which are the same in number with the second sliding tables and fixed on the top support are arranged on one side, facing the top support, of the bottom support.
The sound box comprises a top shell component, a bottom shell component and the lifting device of the sound box, wherein the top shell component is connected with the top support, and the bottom shell component is connected with the bottom support.
Further, the sound box further comprises a hollow elastic component, the top end of the elastic component is connected between the top shell component and the top support, and the bottom end of the elastic component is connected with the bottom shell component.
Compared with the prior art, the invention has the beneficial effects that:
according to the lifting device of the loudspeaker box, the telescopic mechanism can do telescopic motion between the top support and the bottom support, so that the top support and the first clamping assembly arranged on the top support ascend or descend relative to the bottom support, and when the loudspeaker box works normally, the position where the top support is located is defined as the initial position. When the loudspeaker box is not needed to be used, downward acting force is applied to the top support, at the moment, the telescopic mechanism drives the top support and the first clamping assembly to descend relative to the bottom support, when the first clamping assembly moves downwards to be in contact with the second clamping assembly, the second clamping portion can slide along the guiding structure to be buckled on the first clamping portion to form a locking state along with the fact that the downward acting force is continuously applied to the top support, at the moment, the acting force applied to the top support is stopped, and the top shell assembly descends to a low position. When the loudspeaker box is required to be used, downward acting force is applied to the top support, and the second clamping part can slide along the guiding-out structure to be separated from the first clamping part to form an unlocking state; the second clamping part breaks away from the first clamping part and then stops applying downward acting force to the top support, and at the moment, the telescopic mechanism can restore the top support to the initial position, so that the normal use function of the loudspeaker box is guaranteed. In summary, the lifting device of the loudspeaker box only needs to manually apply downward acting force to the top shell assembly, so that lifting of the top shell assembly can be realized, an electric driving mechanism and a control system for controlling the electric driving mechanism to work are not needed, and the lifting device is simple in structure, easy to maintain and low in production cost.
Drawings
FIG. 1 is a schematic view of a lifting device according to an embodiment of the present invention;
FIG. 2 is a schematic view of the lifting device of FIG. 1 at another angle;
FIG. 3 is a schematic view of a portion of the lifting device of FIG. 1;
FIG. 4 is a cross-sectional view of the lift assembly of FIG. 1 with the speaker box operating normally and the top housing assembly in a raised position;
FIG. 5 is a cross-sectional view of the lift assembly of FIG. 1 with the speaker box not in use and the top housing assembly in a lowered position;
FIG. 6 is a schematic structural view of the first engaging component in FIG. 3;
FIG. 7 is an exploded view of the second snap-in assembly of FIG. 3;
FIG. 8 is a schematic view of the rocker of FIG. 7;
FIG. 9 is a schematic view of the torsion spring of the lift device of FIG. 1;
fig. 10 is a cross-sectional view of a sound box having the elevating device of fig. 1.
In the figure: 100. a lifting device; 110. a top bracket; 111. a first sliding table; 112. a first guide bar; 113. a bracket body; 1131. a first connecting piece; 1132. a second connecting piece; 1133. a third connecting piece; 1134. a fourth connecting piece; 114. an annular connecting member; 115. a second connecting shaft; 116. a fourth connecting shaft; 120. a bottom bracket; 121. a second sliding table; 122. a second guide bar; 123. a third connecting shaft; 124. a fifth connecting shaft; 130. a telescoping mechanism; 131. a first link; 132. a second link; 133. a first connecting shaft; 134. a torsion spring; 1341. a spiral part; 1342. a first extension; 1343. a second extension; 1344. a hook structure; 135. a first positioning sleeve; 140. a first clamping assembly; 141. a first engagement portion; 142. an introduction structure; 143. a lead-out structure; 144. a first clamping seat body; 1441. a cavity; 1442. a first sidewall; 1443. a second sidewall; 1444. a limit protrusion; 145. a clamping table; 1451. a third sidewall; 1452. a fourth sidewall; 146. a side avoidance opening; 147. a bottom opening; 150. a second clamping component; 151. a second engaging portion; 152. a second clamping seat body; 1521. a cavity; 1522. a through hole; 153. a rocker; 1531. a connecting arm; 1532. swing arms; 1533. a swinging part; 1534. a boss; 154. an elastic member; 200. a top housing assembly; 210. a speaker; 220. a speaker bracket; 300. a bottom shell assembly; 400. and an elastic component.
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. 1-10, the lifting device 100 of the sound box provided by the embodiment of the invention includes a top bracket 110 for connecting with a top shell component of the sound box, a bottom bracket 120 for connecting with a bottom shell component 300 of the sound box, a telescopic mechanism 130 connected between the top bracket 110 and the bottom bracket 120, a first locking component 140 mounted on one side of the top bracket 110 facing the bottom bracket 120, and a second locking component 150 mounted on one side of the bottom bracket 120 facing the top bracket 110, wherein the first locking component 140 is provided with a first locking portion 141, an introduction structure 142 disposed on one side of the first locking portion 141, and an exit structure 143 disposed on the other side of the first locking portion 141, and the second locking component 150 is provided with a second locking portion 151 capable of sliding along the introduction structure 142 to lock the first locking portion 141 and sliding along the exit structure 143 to disengage from the first locking portion 141.
In the lifting device 100 of the sound box, the telescopic mechanism 130 can perform telescopic motion between the top bracket 110 and the bottom bracket 120, so that the top bracket 110 and the first clamping assembly 140 mounted on the top bracket 110 can ascend or descend relative to the bottom bracket 120, when the sound box works normally, the position of the top bracket 110 is defined as an initial position, and the position of the top shell assembly 200 is defined as a high position; when the speaker is not needed to be used and the second engaging portion 151 is engaged with the first engaging portion 141, the position of the top case assembly 200 is defined as a low position. When the speaker is not needed, a downward force is applied to the top support 110, and at this time, the telescopic mechanism 130 drives the top support 110 and the first locking component 140 to descend relative to the bottom support 120, and when the first locking component 140 moves down to contact with the second locking component 150, the second locking portion 151 slides along the guiding structure 142 to be locked on the first locking portion 141 along with continuing to apply the downward force to the top support 110, and at this time, the force applied to the top support 110 is stopped, and the top shell component 200 descends to a low position. When the sound box is needed to be used, a downward acting force is applied to the top bracket 110, and the second clamping part 151 slides along the guiding-out structure 143 to be separated from the first clamping part 141 to form an unlocking state; after the second engaging portion 151 is separated from the first engaging portion 141, the downward force applied to the top bracket 110 is stopped, and at this time, the telescopic mechanism 130 can restore the top bracket 110 to the initial position, so as to ensure the normal use function of the sound box. In summary, the lifting device 100 of the above-mentioned audio amplifier only needs to manually apply downward force to the top shell assembly 200, and can also realize lifting of the top shell assembly 200, without setting an electric driving mechanism and a control system for controlling the operation of the electric driving mechanism, and has simple structure, simple maintenance and reduced production cost.
As a preferred embodiment, the first engaging assembly 140 includes a first engaging base 144 mounted on the top bracket 110 and having a cavity 1441, and a clamping platform 145 protruding into the cavity 1441, the first engaging portion 141 is disposed on the clamping platform 145, the cavity 1441 has a first side wall 1442 and a second side wall 1443 disposed opposite to each other, the clamping platform 145 has a third side wall 1451 and a fourth side wall 1452 disposed opposite to each other, the first side wall 1442 and the third side wall 1451 enclose to form the introducing structure 142, and the second side wall 1443 and the fourth side wall 1452 enclose to form the discharging structure 143. Further, the first engaging seat 144 has a side avoidance opening 146 communicating with the cavity 1441 for sliding the second engaging portion 151 along the guiding structure 142 and the guiding structure 143, and a bottom opening 147 communicating with the cavity 1441 for sliding the second engaging portion 151 into the guiding structure 142 and out of the guiding structure 143. The first engaging portion 141 is a slot provided at the top of the clamping table 145. It can be appreciated that the cavity 1441 further has a limiting protrusion 1444 spaced from the first engaging portion 141 and disposed opposite to the first engaging portion 141 for limiting the second engaging portion 151 on the first engaging portion 141, and when the second engaging portion 151 is engaged with the first engaging portion 141, i.e. the slot, the limiting protrusion 1444 can prevent the second engaging portion 151 from being separated from the slot. The cavity 1441 has an "M" shaped sidewall.
As a preferred embodiment, the second locking assembly 150 includes a second locking base 152, a rocker 153 and an elastic member 154, the rocker 153 includes a connecting arm 1531 penetrating into the second locking base 152 and rotationally connected to the second locking base 152, and a swinging arm 1532 bending along one end of the connecting arm 1531 and extending outside the second locking base 152, the second locking portion 151 is disposed at one end of the swinging arm 1532 away from the connecting arm 1531, and the elastic member 154 is disposed in the second locking base 152 and elastically abuts between the connecting arm 1531 and the second locking base 152. The second clamping seat 152 is provided with a cavity 1521 for installing the elastic member 154 and a through hole 1522 communicated with the cavity 1521 for the connecting arm 1531 to pass through, and the rocker 153 further comprises two bosses 1534 respectively arranged at two ends of the connecting arm 1531 and outside the second clamping seat 152. The swing arm 1532 includes a swing portion 1533 having one end connected to the connection arm 1531 and a hook extending along the swing portion 1533 at an end far from the connection arm 1531, and the second engaging portion 151 is a hook.
When the first engaging member 140 moves down to the position of the bottom opening 147 of the first engaging member 140 and the top of the second engaging portion 151 are level, the downward force is continuously applied to the top bracket 110, and the second engaging portion 151 slides into the guiding structure 142 from the bottom opening 147 and slides along the guiding structure 142 until the second engaging portion 151 is engaged with the first engaging portion 141 to form a locked state, and at this time, the force applied to the top bracket 110 is stopped, and the top housing member 200 is lowered to the low position. When the sound box is required to be used, a downward force is applied to the top bracket 110, the second clamping portion 151 is disengaged from the first clamping portion 141 and slides into the guiding structure 143, and the second clamping portion 151 slides along the guiding structure 143 and slides out of the bottom opening 147, so that the second clamping portion 151 and the first clamping portion 141 form an unlocked state; after the second engaging portion 151 is disengaged from the first engaging portion 141, the downward force is stopped from being applied to the top bracket 110, and at this time, the telescopic mechanism 130 can restore the top bracket 110 to the initial position, so as to realize lifting of the top case assembly 200.
As a preferred embodiment, the telescopic mechanism 130 includes a first link 131 and a second link 132 hinged to the first link 131 at the middle, one end of the first link 131 is slidably connected to the top bracket 110, and the other end is fixedly connected to the bottom bracket 120; one end of the second link 132 is fixedly connected to the top bracket 110, and the other end is slidably connected to the bottom bracket 120. The telescopic mechanism 130 further includes a first connection shaft 133 penetrating the first link 131 and the second link 132, and a torsion spring 134 mounted on the first connection shaft 133. The telescopic mechanism 130 further includes two first positioning sleeves 135 provided between the first link 131 and the second link 132 for positioning the first link 131 and the second link 132 to prevent the first link 131 and the second link 132 from interfering with each other during the telescopic process. The first connecting shaft 133 is penetrated through the first connecting rod 131, the first positioning sleeve 135, the second connecting rod 132 and the torsion spring 134, one end radial dimension of the first connecting shaft 133 is larger than radial dimensions of other parts of the first connecting shaft 133, and the other end of the first connecting shaft 133 is in interference fit with the first connecting shaft 131, the first positioning sleeve 135, the second connecting rod 132 and the torsion spring 134 through the U-shaped snap ring. The torsion spring 134 includes a spiral portion 1341 sleeved on the first connecting shaft 133, a first extension portion 1342 bent and extended along one end of the spiral portion 1341 and clamped on the second connecting rod 132, and a second extension portion 1343 bent and extended along the other end of the spiral portion 1341 away from the first extension portion 1342. The first extension portion 1342 transmits the torsion moment of the screw portion 1341 to the second connecting rod 132 to be restored or transmits the torsion moment of the second connecting rod 132 to the screw portion 1341, when the screw portion 1341 is axially deformed, the torsion moment can be ensured to be applied to the reciprocating telescopic mechanism 130, and the telescopic mechanism 130 is ensured to be restored. It will be appreciated that the end of the first extension 1342 remote from the screw 1341 is bent towards the screw 1341 to form a hook structure 1344 to provide a good fit of the torsion spring 134 with the second link 132.
The side of the top bracket 110 facing the bottom bracket 120 is provided with a first slide table 111 connected with the first link 131 and a first guide bar 112 slidably fitted with the first slide table 111 and fixed to the top bracket 110. At least two second sliding tables 121 connected with the second connecting rods 132 and second guide rods 122 which are the same in number as the second sliding tables 121 and fixed on the top support 110 are arranged on one side of the bottom support 120 facing the top support 110. Specifically, one end of the first connecting rod 131 is connected with the first sliding table 111 through the second connecting shaft 115 and the U-shaped snap ring, the first sliding table 111 is sleeved on the first guide rod 112, and the other end of the first connecting rod 131 is fixedly connected with the bottom bracket 120 through the third connecting shaft 123 and the U-shaped snap ring; one end of the second link 132 is fixedly connected with the top bracket 110 through the fourth connecting shaft 116 and the U-shaped snap ring, and the other end of the second link 132 is connected with the second sliding table 121 through the fifth connecting shaft 124 and the U-shaped snap ring. The first connecting rod 131 of the telescopic mechanism 130 slides along the first guide rod 112 through the first sliding table 111, and the second connecting rod 132 of the telescopic mechanism 130 slides along the second guide rod 122 through the second sliding table 121, so that the telescopic mechanism 130 drives the top bracket 110 and the first clamping assembly 140 to perform lifting motion relative to the bottom bracket 120.
The top support 110 includes support body 113 and the annular connecting piece 114 of being connected with top shell subassembly 200, and support body 113 is connected with annular connecting piece 114 through laser welding mode, compares with the butt-joint processing, can keep away from the roughness control of support body 113 in 0.1mm with annular connecting piece 114, has improved the roughness of keeping away from support body 113 of annular connecting piece 114 greatly, and then has improved the holistic roughness of audio amplifier. In an embodiment, the number of the first guide rods 112 is two, a first connecting structure connected with the first guide rods 112 is convexly arranged on one side, facing the bottom bracket 120, of the bracket body 113, the first connecting structure comprises a first connecting sheet 1131, a second connecting sheet 1132, a third connecting sheet 1133 and a fourth connecting sheet 1134 which are arranged at intervals, one connecting hole is formed in each of the first connecting sheet 1131, the second connecting sheet 1132, the third connecting sheet 1133 and the fourth connecting sheet 1134, one first guide rod 112 penetrates through the connecting hole of the first connecting sheet 1131 and the connecting hole of the third connecting sheet 1133, one end size of the first guide rod 112 is larger than that of the middle part, and the other end size of the first guide rod 112 is fixed through a U-shaped clamp ring in an interference fit manner; the other first guide rod 112 is inserted through the connecting hole of the second connecting sheet 1132 and the connecting hole of the fourth connecting sheet 1134, one end of the first guide rod 112 is larger than the middle, and the other end is fixed by the interference fit of the U-shaped clamping ring. The connecting holes on the first connecting sheet 1131, the second connecting sheet 1132, the third connecting sheet 1133 and the fourth connecting sheet 1134 are punched through the die to form small holes, and then the small holes punched through the die are subjected to secondary machining reaming through a reaming device such as a drill bit, so that the connecting holes of the first connecting sheet 1131 and the connecting holes of the third connecting sheet 1133 are concentric, and the connecting holes of the second connecting sheet 1132 and the connecting holes of the fourth connecting sheet 1134 are concentric, so that the overall flatness of the loudspeaker box is ensured. It can be appreciated that the number of the second guide rods 122 is two, and the bottom bracket 120 has a second connection structure connected with the second guide rods 122, where the second connection structure is the same as the first connection structure, so as to further ensure the overall flatness of the sound box, which is not described herein.
The embodiment of the invention also provides a sound box, which comprises a top shell assembly 200, a bottom shell assembly 300 and the lifting device 100 of the sound box, wherein the top shell assembly 200 is connected with the top bracket 110, and the bottom shell assembly 300 is connected with the bottom bracket 120.
It will be appreciated that the top case assembly 200 includes a speaker 210 and a speaker bracket 220 for mounting the speaker 210, the speaker 210 being mounted to a side of the speaker bracket 220 facing away from the lifting device 100.
As a preferred embodiment, the sound box further includes a hollow elastic component 400, the top end of the elastic component 400 is connected between the top shell component 200 and the top bracket 110, the bottom end of the elastic component 400 is connected with the bottom shell component 300, the top shell component 200, the elastic component 400, the bottom shell component 300 and the lifting device 100 enclose to form a cavity, when the top shell component 200 is located at a high position, the cavity is sealed to prevent acoustic signals on the front side and the back side of the speaker 210 from forming a loop, so as to further improve sound quality and sound effect of the sound box.
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 (7)

1. The lifting device of the sound box is characterized by comprising a top support, a bottom support, a telescopic mechanism, a first clamping assembly and a second clamping assembly, wherein the top support is used for being connected with a top shell assembly of the sound box, the bottom support is used for being connected with a bottom shell assembly of the sound box, the telescopic mechanism is connected between the top support and the bottom support, the first clamping assembly is installed on one side of the top support, which faces towards the bottom support, of the top support, the second clamping assembly is installed on one side of the bottom support, the first clamping assembly is provided with a first clamping part, a guiding structure is arranged on one side of the first clamping part, a guiding structure is arranged on the other side of the first clamping part, a guiding structure is arranged on the second clamping assembly, the guiding structure can be buckled to the first clamping part, the guiding structure can be glidingly separated from the second clamping part, the second clamping assembly comprises a second clamping seat body, a rocker and an elastic piece, the rocker comprises a connecting arm which is arranged in the second clamping seat in a penetrating way and is in the second clamping seat and is in a connecting arm rotating way, the connecting arm is arranged on the second clamping seat and is in a connecting way of the second clamping arm rotating towards one side of the top support, the second clamping assembly is also provided with an elastic piece, the rocker arm is arranged in the second clamping seat and is in the connecting arm connecting piece is in the middle of the connecting body, the connecting body is in the connecting way of the connecting rod is in the connecting body, the connecting body and the connecting rod is in the connecting piece with the connecting body, the connecting body is in the connecting piece with the connecting body through the two end of the connecting body, the connecting body through the connecting body and the connecting body through the connecting body, one end of the first connecting rod is in sliding connection with the top bracket, and the other end of the first connecting rod is fixedly connected with the bottom bracket; 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.
2. The sound box lifting device of 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 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 guiding structure, and the second side wall and the fourth side wall are enclosed to form the guiding structure.
3. The lift device of claim 2, wherein the first engagement seat has a side bypass opening in communication with the cavity for sliding the second engagement portion along the lead-in and lead-out structures and a bottom opening in communication with the cavity for sliding the second engagement portion into and out of the lead-in and lead-out structures; and/or the first clamping part is a clamping groove arranged at the top of the clamping table.
4. The lift device of claim 1 wherein the swing arm includes a swing portion having one end connected to the connecting arm and a hook extending along the swing portion at an end of the swing portion remote from the connecting arm, and the second engaging portion is the hook.
5. The lifting device of the sound box according to claim 1, wherein the telescopic mechanism further comprises a first connecting shaft penetrating through the first connecting rod and the second connecting rod and a torsion spring arranged on the first connecting shaft, the torsion spring comprises a spiral part sleeved on the first connecting shaft, a first extending part bent and extended along one end of the spiral part and clamped on the second connecting rod, and a second extending part bent and extended along the other end of the spiral part and deviating from the first extending part; and/or the number of the groups of groups,
a first sliding table connected with the first connecting rod and a first guide rod which is in sliding fit with the first sliding table and is fixed on the top support are arranged on one side of the top support, which faces the bottom support; and/or the number of the groups of groups,
at least two second sliding tables connected with the second connecting rods and second guide rods which are the same in number with the second sliding tables and fixed on the top support are arranged on one side, facing the top support, of the bottom support.
6. A loudspeaker, characterized in that the loudspeaker comprises a top shell assembly, a bottom shell assembly and a lifting device of the loudspeaker according to any one of claims 1-5, wherein the top shell assembly is connected to the top support, and the bottom shell assembly is connected to the bottom support.
7. The sound box according to claim 6, further comprising a hollow elastic member, wherein a top end of the elastic member is connected between the top case member and the top bracket, and a bottom end of the elastic member is connected with the bottom case member.
CN201811073662.6A 2018-09-14 2018-09-14 Lifting device of sound box and sound box Active CN109348354B (en)

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CN109348354B true CN109348354B (en) 2024-04-02

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CN111083584B (en) * 2019-12-20 2021-06-01 歌尔股份有限公司 Rotary lifting mechanism and control method thereof, projector and sound box

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