CN213244337U

CN213244337U - Built-in frequency division switching device in loudspeaker box

Info

Publication number: CN213244337U
Application number: CN202021766595.9U
Authority: CN
Inventors: 郭运波
Original assignee: Guangzhou Bonbs Electronic Technology Co ltd
Current assignee: Guangzhou Bonbs Electronic Technology Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-05-18
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses an external frequency division auto-change over device in audio amplifier, which comprises an audio amplifier, the bottom fixedly connected with pulley of audio amplifier, fixedly connected with fixing base between the left and right sides of audio amplifier inner chamber, the top fixedly connected with extension board that just is located the fixing base between the left and right sides of audio amplifier inner chamber, the top sliding connection of fixing base has three groove pieces, the both sides of three groove pieces and the inner chamber swing joint of audio amplifier, the top swing joint of three groove pieces has first spring post, the utility model relates to an audio amplifier technical field. This external frequency division auto-change over device in audio amplifier, through being provided with the audio amplifier, press first spring post and reset second spring post, cooperation first fixture block, first spout, first draw-in groove, slider and three groove blocks etc to press the spring post to come to switch the internal and external frequency division that corresponds, very big promotion current audio amplifier internal and external frequency division auto-change over device efficiency, also avoided the not high problem of the degree of accuracy of traditional manual switching simultaneously.

Description

Built-in frequency division switching device in loudspeaker box

Technical Field

The utility model relates to an audio amplifier technical field specifically is an external frequency division auto-change over device in audio amplifier.

Background

A sound box refers to a device that can convert an audio signal into sound; the popular way is that a power amplifier is arranged in a main box body or a bass box body of the sound box, and the sound is emitted back by the sound box after the audio signal is amplified, so that the sound of the sound box is increased; 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; it is an extremely important component of an audio system and is responsible for the task of converting electrical signals into acoustic signals for direct listening by the human ear.

External frequency division auto-change over device mostly counts in current audio amplifier or manual player of controlling controls, comparatively trouble, and the degree of accuracy of switching is not high simultaneously to and some audio amplifier leads to tone quality a little time because of the seal not enough, and is inconvenient at the process of inspection maintenance, for this reason, the utility model provides an external frequency division auto-change over device in audio amplifier.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides an external frequency division auto-change over device in audio amplifier has solved the interior external frequency division auto-change over device inefficiency of current audio amplifier to and the problem of partial audio amplifier tone quality inferior.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a built-in frequency division switching device of a sound box comprises the sound box, pulleys are fixedly connected to the bottom of the sound box, a fixed seat is fixedly connected between the left side and the right side of an inner cavity of the sound box, a support plate is fixedly connected between the left side and the right side of the inner cavity of the sound box and positioned above the fixed seat, a three-groove block is connected to the top of the fixed seat in a sliding manner, two sides of the three-groove block are movably connected with the inner cavity of the sound box, a first spring column is movably connected to the top of the three-groove block, a second spring column is connected to the top of the sound box and positioned on the right side of the first spring column in a sliding manner, the bottom ends of the first spring column and the second spring column sequentially penetrate through the sound box and the support plate and extend to the bottom of the support plate, a first clamping block is fixedly connected to the bottom ends of the two second spring columns, a first sliding groove is formed, the bottom fixedly connected with slider of first spring post, the surface contact of the surface of slider and first spout, the surface contact of the surface of first fixture block and the internal surface of first draw-in groove.

Preferably, the left side fixedly connected with third spring post of three channel blocks, the left end of third spring post and the left side fixed connection of audio amplifier inner chamber, the right side fixedly connected with spring of three channel blocks, the right-hand member of spring and the right side fixed connection of audio amplifier inner chamber.

Preferably, the front side swing joint of audio amplifier has the case shell, the equal fixedly connected with speaker in the upper and lower place in the case shell outside, the right-and-left equal fixedly connected with slide in the case shell inboard, two the second spout has all been seted up to one side of slide, the surface of slide and the inner wall contact of audio amplifier.

Preferably, the inner surface of the second sliding groove is fixedly connected with an elastic column, one end of the elastic column is movably connected with a supporting column, and one end of the elastic column is provided with a second clamping groove.

Preferably, one end of the pillar is fixedly connected with a second clamping block, the inner surface of the second clamping groove is connected with the outer surface of the second clamping block in a sliding mode, and the two sides of the outer surface of the pillar are fixedly connected with third clamping blocks.

Preferably, the third draw-in groove has all been seted up to the both sides of second spout internal surface, the other end of pillar runs through the audio amplifier and extends to the outside of audio amplifier, the other end fixedly connected with of pillar rotates the handle.

Advantageous effects

The utility model provides an external frequency division auto-change over device in audio amplifier. Compared with the prior art, the method has the following beneficial effects:

(1) the sound box is internally and externally provided with a frequency division switching device, a support plate is fixedly connected between the left side and the right side of an inner cavity of the sound box and above a fixed seat, the top of the fixed seat is slidably connected with a three-groove block, the two sides of the three-groove block are movably connected with the inner cavity of the sound box, the top of the three-groove block is movably connected with a first spring column, the top of the sound box and the right side of the first spring column are respectively and slidably connected with a second spring column, the bottom ends of the first spring column and the second spring column sequentially penetrate through the sound box and the support plate and extend to the bottom of the support plate, the bottom ends of the two second spring columns are respectively and fixedly connected with a first clamping block, the top of the three-groove block is provided with a first sliding groove, the bottom end of the first spring column is fixedly connected with a sliding block, the sound box is arranged, the first spring column is pressed to, first fixture block, first spout, first draw-in groove, slider and three groove blocks etc. of cooperation to switching corresponding built-in and built-out frequency division according to the spring post, very big promotion external frequency division auto-change over device efficiency in the current audio amplifier, also avoided the not high problem of the degree of accuracy of traditional manual switching simultaneously.

(2) The external frequency division switching device in the sound box is characterized in that sliding plates are fixedly connected on the left side and the right side of the inner side of a box shell, a second sliding groove is formed in one side of each of the two sliding plates, the surface of each sliding plate is in contact with the inner wall of the sound box, an elastic column is fixedly connected to the inner surface of each sliding groove, a support column is movably connected to one end of each elastic column, a second clamping groove is formed in one end of each elastic column, a second clamping block is fixedly connected to one end of each support column, the inner surface of each second clamping groove is in sliding connection with the outer surface of the corresponding second clamping block, third clamping blocks are fixedly connected to two sides of the outer surface of each support column, third clamping grooves are formed in two sides of the inner surface of each second sliding groove, the other end of each support column penetrates through the sound box and extends to the outside of the sound box, a rotating handle is fixedly connected, make the audio amplifier overhaul convenient dismantling, the deashing of being convenient for makes the seal of audio amplifier higher simultaneously for the tone quality of audio amplifier becomes better.

Drawings

FIG. 1 is a front view of the internal and external structure of the present invention;

FIG. 2 is a front view of the internal structure of the present invention;

FIG. 3 is a front view of the present invention;

fig. 4 is a partial structural plan view of the present invention.

In the figure: 1-sound box, 2-pulley, 3-fixing seat, 4-support plate, 5-three-groove block, 6-first spring column, 7-second spring column, 8-first clamping block, 9-first sliding groove, 10-first clamping groove, 11-sliding block, 12-third spring column, 13-spring, 14-box shell, 15-sliding plate, 16-second sliding groove, 17-elastic column, 18-support column, 19-second clamping groove, 20-second clamping block, 21-third clamping block, 22-third clamping groove, 23-rotating handle and 24-loudspeaker.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an internal and external frequency division switching device of a sound box comprises a sound box 1, the sound box 1 is electrically connected with an external power supply, the inner walls of the left side and the right side are provided with grooves for facilitating the rotation of a third clamping block 21, the front side of the sound box 1 is movably connected with a box shell 14, a sealing gasket is arranged inside the box shell 14, a closed space is realized for the sound box 1, the upper part and the lower part of the outer side of the box shell 14 are fixedly connected with a loudspeaker 24, the loudspeaker 24 is connected with an electrical element, the left side and the right side of the inner side of the box shell 14 are fixedly connected with sliding plates 15, the sliding plates 15 are tightly attached to the inner wall of the sound box 1, one side of each of the two sliding plates 15 is provided with a second sliding groove 16, the two sides of the inner surface of the second sliding groove 16 are provided with third clamping grooves 22, the third clamping grooves 22 are provided with disc grooves by taking an elastic column 17 as the center for facilitating the, an elastic column 17 is fixedly connected to the inner surface of the second sliding groove 16, the rotating handle 23 has strong restorability, one end of the elastic column 17 is movably connected with a support column 18, the support column 18 is used for being clamped with the second sliding groove 16, one end of the support column 18 is fixedly connected with a second clamping block 20, the second clamping block 20 is clamped with a second clamping groove 19, the inner surface of the second clamping groove 19 is in sliding connection with the outer surface of the second clamping block 20, both sides of the outer surface of the support column 18 are fixedly connected with third clamping blocks 21, one end of the elastic column 17 is provided with the second clamping groove 19, the surface of the sliding plate 15 is contacted with the inner wall of the sound box 1, the bottom of the sound box 1 is fixedly connected with a pulley 2, the pulley 2 can be braked and fixed, a fixed seat 3 is fixedly connected between the left side and the right side of the inner cavity of the sound box 1, the fixed seat 3 is used for supporting, the top of the fixed seat 3 is connected with a three-groove block 5 in a sliding manner, the left side of the three-groove block 5 is fixedly connected with a third spring column 12, the third spring column 12 is matched with a spring 13 and used for restoring the position of the three-groove block 5, the left end of the third spring column 12 is fixedly connected with the left side of the inner cavity of the sound box 1, the right side of the three-groove block 5 is fixedly connected with the spring 13, the right end of the spring 13 is fixedly connected with the right side of the inner cavity of the sound box 1, the two sides of the three-groove block 5 are movably connected with the inner cavity of the sound box 1, the top of the three-groove block 5 is movably connected with a first spring column 6, the surfaces above the springs of the first spring column 6 and the second spring column 7 are fixedly provided with baffle plates, so as to be convenient for extruding the spring columns, the top of the sound box 1 and the right side of the first spring column 6 are both connected with a second spring column 7 in a, the bottom ends of the two second spring columns 7 are fixedly connected with a first clamping block 8, the first clamping block 8 is clamped with a first clamping groove 10, the top of the three-groove block 5 is provided with a first sliding groove 9, the top of the three-groove block 5 is positioned on the right side of the first sliding groove 9 and provided with a first clamping groove 10, the bottom end of the first spring column 6 is fixedly connected with a sliding block 11, the outer surface of the sliding block 11 is in contact with the inner surface of the first sliding groove 9, the outer surface of the first clamping block 8 is in contact with the inner surface of the first clamping groove 10, and meanwhile, the content which is not described in detail in the specification belongs to the prior art which is well known by technicians in the.

When the loudspeaker box works, firstly, the box shell 14 is aligned to the loudspeaker box 1, the sliding plate 15 is placed in the loudspeaker box 1, then the support column 18 is inserted from the left side and the right side of the loudspeaker box 1, so that the second clamping groove 19 is aligned with the second clamping block 20, the rotating handle 23 is rotated, the elastic column 17 is rotated by 90 degrees, at the moment, the third clamping block 21 is aligned with the first sliding groove 9 along with the rotation of 90 degrees, then the elastic column 17 is pressed inwards, so that the positions of the third clamping block 21 and the third clamping groove 22 are aligned, the rotating handle 23 is loosened, the elastic column 17 is restored to the initial position, so that the third clamping block 21 and the third clamping groove 22 are clamped in a sliding manner, through the arrangement of the sliding plate 15, the elastic column 17 is rotated by utilizing the support column 18, the second clamping groove 19, the second clamping block 20, the third clamping block 21 and the third clamping groove 22 are matched, so that the loudspeaker box 1 is convenient to be disassembled and maintained, the convenience is convenient, meanwhile, when the internal frequency division needs to be switched, one second spring column 7 is pressed to enable the second spring column 7 to move downwards, so that the first clamping block 8 is pushed to move downwards to be clamped with the first clamping groove 10, when the external frequency division needs to be switched, another second spring column 7 is operated in the same way, meanwhile, when the loudspeaker box is not used, the first spring column 6 is pressed in the same way, the sliding block 11 and the first sliding groove 9 are utilized to slide, so that the third groove block 5 moves leftwards, so that the third spring column 12 is extruded, the second spring column 7 is restored to the initial position, the loudspeaker box 1 is arranged, the second spring column 7 is reset by pressing the first spring column 6, the corresponding internal and external frequency division is switched by matching with the first clamping block 8, the first sliding groove 9, the first clamping groove 10, the sliding block 11, the third groove block 12 and the like, so that the corresponding internal and external frequency division is switched by pressing the spring columns, and the efficiency of the existing external frequency division switching device in the loudspeaker box 1 is, meanwhile, the problem that the traditional manual switching is not high in accuracy is avoided.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an external frequency division auto-change over device in audio amplifier, includes audio amplifier (1), the bottom fixedly connected with pulley (2) of audio amplifier (1), its characterized in that: the loudspeaker box is characterized in that a fixing seat (3) is fixedly connected between the left side and the right side of an inner cavity of the loudspeaker box (1), a support plate (4) is fixedly connected between the left side and the right side of the inner cavity of the loudspeaker box (1) and positioned above the fixing seat (3), a three-groove block (5) is slidably connected to the top of the fixing seat (3), two sides of the three-groove block (5) are movably connected with the inner cavity of the loudspeaker box (1), a first spring column (6) is movably connected to the top of the three-groove block (5), a second spring column (7) is slidably connected to the top of the loudspeaker box (1) and positioned on the right side of the first spring column (6), the bottoms of the first spring column (6) and the second spring column (7) sequentially penetrate through the loudspeaker box (1) and the support plate (4) and extend to the bottom of the support plate (4), and first clamping blocks (8) are fixedly connected to, first spout (9) have been seted up at the top of three groove blocks (5), first draw-in groove (10) have been seted up at the top of three groove blocks (5) and the right side that is located first spout (9), the bottom fixedly connected with slider (11) of first spring post (6), the surface of slider (11) and the interior surface contact of first spout (9), the surface of first fixture block (8) and the interior surface contact of first draw-in groove (10).

2. The external frequency division switching device in a sound box according to claim 1, characterized in that: the left side fixedly connected with third spring post (12) of three channel (5), the left end of third spring post (12) and the left side fixed connection of audio amplifier (1) inner chamber, the right side fixedly connected with spring (13) of three channel (5), the right-hand member of spring (13) and the right side fixed connection of audio amplifier (1) inner chamber.

3. The external frequency division switching device in a sound box according to claim 1, characterized in that: the front side swing joint of audio amplifier (1) has case shell (14), equal fixedly connected with speaker (24) in the upper and lower place in the case shell (14) outside, the right-hand equal fixedly connected with slide (15) in the left and right sides of case shell (14) inboard, two second spout (16) have all been seted up to one side of slide (15), the surface of slide (15) and the inner wall contact of audio amplifier (1).

4. The external frequency division switching device inside and outside a sound box according to claim 3, wherein: the inner surface of the second sliding groove (16) is fixedly connected with an elastic column (17), one end of the elastic column (17) is movably connected with a supporting column (18), and one end of the elastic column (17) is provided with a second clamping groove (19).

5. The external frequency division switching device in a sound box according to claim 4, wherein: one end of the pillar (18) is fixedly connected with a second clamping block (20), the inner surface of the second clamping groove (19) is connected with the outer surface of the second clamping block (20) in a sliding mode, and the two sides of the outer surface of the pillar (18) are fixedly connected with third clamping blocks (21).

6. The external frequency division switching device in a sound box according to claim 4, wherein: third draw-in groove (22) have all been seted up to the both sides of second spout (16) internal surface, the other end of pillar (18) runs through audio amplifier (1) and extends to the outside of audio amplifier (1), the other end fixedly connected with of pillar (18) rotates handle (23).