CN211670962U

CN211670962U - Directional sound

Info

Publication number: CN211670962U
Application number: CN202021337206.0U
Authority: CN
Inventors: 张永清
Original assignee: Beijing Shengshi Aiyou Qicheng Technology Co ltd
Current assignee: Beijing Shengshi Aiyou Qicheng Technology Co ltd
Priority date: 2020-07-09
Filing date: 2020-07-09
Publication date: 2020-10-13
Anticipated expiration: 2030-07-09

Abstract

The utility model discloses a directional sound box, which comprises a sound box and a box body, wherein a sound circuit board and a sound unit are arranged inside the sound box, the sound unit is positioned on the circuit board and is electrically connected with the circuit board, the sound box is respectively and electrically connected with a power amplifier, the power amplifier is positioned inside the box body, the box body is rectangular, one side wall of the box body is provided with a box door which can be opened and closed, the inner surface of one side wall of the box body, which is far away from the box door, is fixedly connected with a fixing device, the utility model arranges a connecting plate on the box body, rotates a connecting roller on the connecting plate, enables the roller to rotate freely on the connecting plate, arranges a torsional spring between the connecting plate and the roller, and connects a main body on the roller through a steel wire rope, enables the roller to rotate under the action of the torsional spring when the, and then the box body is pulled to the main body, so that the box body and the wall body are fixed.

Description

Directional sound

Technical Field

The utility model relates to a stereo set technical field, concrete field is a directional stereo set.

Background

Audio electronics (Audio electronics) refers broadly to a device that uses electronic circuit design to perform inter-conversion between Audio and electronic signals, but in general speaking, Audio refers to a whole set of devices that can reproduce Audio signals.

The audio equipment includes, for example, a power amplifier, peripheral equipment (including a limiter, an effector, an equalizer, a VCD, a DVD, etc.), a speaker (a sound box, a horn), a sound console, and the like. The development history of sound technology can be divided into four stages, namely a transistor, an integrated circuit and a field effect transistor.

The sound production principle adopts that the vibrator vibrates the sound production + paper tympanic membrane loudspeaker sound production, people who we often use the stereo set all know, ordinary stereo set except professional stereo set, general ordinary sound heavy bass is not enough, the good general volume of bass is all little, this is mainly because the stereo set that adopts loudspeaker sound production receives the influence of sound production unit body size very big, so many multimedia sound directly adopt the subwoofer, external audio amplifier, fully enlarge its sound production unit body volume scope, but has very big restriction to the appearance of stereo set sound like this, this is why the stereo set that we saw in the market generally is four directions just has angular reason, and the bass effect is not very good yet.

The existing directional sound box is usually provided with a sound box and a box body, and the directional sound box is usually arranged at a high position, so that the installation of the box body is inconvenient when the directional sound box is installed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a directional sound to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a directional sound box comprises a sound box body and a sound box body, wherein a sound box circuit board and a sound production unit are arranged in the sound box body, the sound production unit is positioned on the circuit board and is electrically connected with the circuit board, the sound boxes are respectively and electrically connected with a power amplifier, the power amplifiers are positioned in the box body, the box body is rectangular, a box door capable of opening and closing is arranged on the side wall of one side of the box body, a fixing device is fixedly connected to the inner surface of the side wall of one side of the box body, which is far away from the box door, the fixing device comprises a connecting plate, the surface of one side of the connecting plate is rotatably connected with a roller, one end of a steel wire rope is fixedly connected with the surface of the roller wheel, the other end of the steel wire rope is fixedly connected with a connecting device, and a torsion spring for winding the steel wire rope on the roller is arranged between the roller and the connecting plate, and the connecting device is positioned outside the box body.

Preferably, the connecting device includes the main part, the main part is cylindrically, the one end surface of main part is equipped with first blind hole, the internal surface of first blind hole is equipped with the second blind hole, first blind hole with the second blind hole respectively with the coaxial setting of main part, the diameter of second blind hole is less than the diameter of first blind hole, the internal surface sliding connection of second blind hole has the movable rod, the movable rod with be equipped with first spring between the second blind hole, the movable rod corresponds to be located one end fixedly connected with fly leaf in the first blind hole, the internal surface of first blind hole is equipped with movable groove, the internal surface difference sliding connection in movable groove has the fixed block, the fixed block with correspond be equipped with the second spring between the movable groove respectively.

Preferably, the movable plate is in a circular truncated cone shape, the diameter of one end, away from the second blind hole, of the movable plate is larger than that of the other end of the movable plate, and the surface of the fixed block is attached to the surface of the movable plate.

Preferably, a through groove penetrates through the side wall of one side, away from the box door, of the box body, a shell is fixedly connected to the inner surface of the through groove, the connecting plate is fixedly connected to the side wall of the shell, and the connecting device is located inside the shell.

Preferably, the one end that the running roller kept away from the connecting plate is coaxial to be equipped with the gear, the lateral wall sliding connection of casing has the ejector pin, the surface of ejector pin is equipped with the limiting plate, the limiting plate with be equipped with the third spring between the casing.

Preferably, both ends of the roller are respectively provided with a baffle.

Preferably, the outer surface of the side wall of one side of the box body, which is far away from the box door, is provided with an anti-skid rubber cushion.

Preferably, the surface of the anti-skid rubber mat is provided with anti-skid convex points.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a directional stereo set, is through setting up the connecting plate on the box to rotate on the connecting plate and connect the running roller, make the running roller can rotate at will on the connecting plate, through set up the torsional spring between connecting plate and running roller, and through wire rope connection main part on the running roller, make when main part and cavity are fixed, the running roller is rotatory under the effect of torsional spring, twines wire rope on the running roller, and then draws the box to main part department, thereby fixes between with box and the wall body.

Drawings

Fig. 1 is a schematic view of the sectional structure of the audio device of the present invention;

FIG. 2 is a schematic view of the sectional structure of the case body of the present invention;

FIG. 3 is a schematic view of the cross-sectional structure of the connection device of the present invention;

FIG. 4 is a schematic view of the left side cross-section structure of the box body of the present invention;

fig. 5 is a schematic top view of the cross-sectional structure of the present invention;

fig. 6 is a schematic view of a right-side sectional structure of the connecting device of the present invention.

In the figure: the sound box comprises a sound 1, a sound box 2, a sound circuit board 3, a sound unit 4, a power amplifier 5, a box door 6, a connecting plate 7, a roller 8, a steel wire rope 9, a main body 10, a first blind hole 11, a second blind hole 12, a movable rod 13, a first spring 14, a movable plate 15, a movable groove 16, a fixed block 17, a second spring 18, a shell 19, a gear 20, a push rod 21, a limit plate 22, a third spring 23 and a baffle 24.

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. 1-6, the present invention provides a technical solution: a directional sound box comprises a sound box body 1 and a box body 2, a sound box circuit board 3 and a sound generating unit 4 are arranged in the sound box body, the sound generating unit is located on the circuit board 3 and electrically connected with the circuit board 3, the sound box body 1 is electrically connected with a power amplifier 5 respectively, the power amplifier 5 is located in the box body 2, a heat radiating fan is arranged on the power amplifier 5, heat is timely exhausted when the power amplifier works, as shown in figure 2, the box body 2 is rectangular, a box door 6 capable of being opened and closed is arranged on one side wall of the box body 2 and used for maintaining and repairing the power amplifier 5, a fixing device is fixedly connected to the inner surface of one side wall of the box body 2, far away from the box door 6, the fixing device comprises a connecting plate 7, as shown in figure 5, a roller 8 is rotatably connected to one side surface of the connecting plate 7, one end of a steel wire rope 9 is fixedly connected to the surface of the roller 8, the other end of the steel wire rope 9 is fixedly connected with a connecting device, as shown in fig. 2, the connecting device is located outside the box body 2, a torsion spring enabling the steel wire rope 9 to be wound on the roller 8 is arranged between the roller 8 and the connecting plate 7, and the connecting device is tightly attached to the box body 2 in a normal state.

Specifically, as shown in fig. 3, the connecting device includes a main body 10, the main body 10 is cylindrical, a first blind hole 11 is disposed on an end surface of the main body 10, a second blind hole 12 is disposed on an inner surface of the first blind hole 11, the first blind hole 11 and the second blind hole 12 are respectively disposed coaxially with the main body 10, a diameter of the second blind hole 12 is smaller than a diameter of the first blind hole 11, a movable rod 13 is slidably connected to an inner surface of the second blind hole 12, a first spring 14 is disposed between the movable rod 13 and the second blind hole 12, a movable plate 15 is fixedly connected to an end of the movable rod 13 corresponding to the first blind hole 11, the movable plate 15 is located at an end far away from the box 2 by the first spring 14, a movable groove 16 is disposed on an inner surface of the first blind hole 11, and a fixed block 17 is slidably connected to an inner surface of the movable groove 16, the fixing block 17 and the corresponding movable groove 16 are respectively provided with a second spring 18, the second springs 18 enable the fixing block 17 to generate acting force moving towards the axis direction of the main body 10, the movable plate 15 is tightly attached to the fixing block 17, the expansion bolt is fixed to the wall body, a screw rod is arranged outside the expansion bolt corresponding to the cavity, a nut on the screw rod is inserted through the first blind hole 11, the movable plate 15 is jacked in, after the movable plate 15 is separated from the fixing block 17, the nut continues to move, the fixing block 17 is in contact with the screw rod under the action of the second springs 18, and therefore the screw rod is clamped in the connecting device, and the connecting device and the wall body are fixed.

Specifically, as shown in fig. 3, the movable plate 15 is in a circular truncated cone shape, a diameter of one end of the movable plate 15, which is far away from the second blind hole 12, is larger than a diameter of the other end of the movable plate 15, and a surface of the fixed block 17 is attached to a surface of the movable plate 15, so that the movable plate 15 is always located at one end of the fixed block 17, which is far away from the box body 2, and the first blind hole 11 is blocked to prevent external impurities from entering.

Specifically, as shown in fig. 3, a through groove is formed through a side wall of the box body 2 on a side away from the box door 6, a housing 19 is fixedly connected to an inner surface of the through groove, the connecting plate 7 is fixedly connected to a side wall of the housing 19, and the connecting device is located inside the housing 19, so that when the connecting device is connected, the main body 10 is located inside the housing 19, and the box body 2 is closely attached to a wall surface.

Specifically, a gear 20 is coaxially arranged at one end of the roller 8, which is far away from the connecting plate 7, a top rod 21 is connected to the side wall of the housing 19 in a sliding manner, a limiting plate 22 is arranged on the surface of the top rod 21, a third spring 23 is arranged between the limiting plate 22 and the housing 19, the top rod 21 is not in contact with the gear 20 under the action of the third spring 21 in a normal state, one end of the top rod 21, which is far away from the housing 19, is located outside the housing 19, and after the box body 2 is in contact with a wall body, the top rod 21 is forced to move towards the housing 19, so that the top rod 21 is in contact with the gear 20, and.

Specifically, two ends of the roller 8 are respectively provided with a baffle 24, so that the steel wire rope 9 can be wound between the two baffles 24.

Particularly, the outer surface of the side wall of one side of the box body 2, which is far away from the box door 6, is provided with an anti-skidding rubber mat, and after the device is fixed on a wall, the anti-skidding rubber mat is in contact with the wall, so that the friction force between the anti-skidding rubber mat and the wall is increased, and the device is prevented from deviating.

Specifically, the surface of antiskid cushion is equipped with anti-skidding bump, further increases the frictional force between box 2 and the cavity.

The working principle is as follows: the utility model discloses during the use, fix stereo set 1 on the wall body earlier, and squeeze into expansion bolts on the wall body, pulling wire rope 9, make the last screw rod of expansion bolts insert by first blind hole 11 in main part 10, the screw rod pushes up fly leaf 15, lose the contact back with fixed block 17 when the nut on the screw rod, fixed block 17 contacts with the screw rod under the effect of second spring 18, with the nut card in the inside of main part 10, release the box, running roller 8 rotates under the torsional spring effect, thereby tighten up wire rope 9, make the box remove to wall body department, accomplish and fix between the wall body.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the interconnection of two elements or through the interaction of two elements. The specific meaning of the above terms in the present invention can be understood in specific cases by those skilled in the art.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

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 a directional sound, includes stereo set (1) and box (2), stereo set inside is equipped with stereo set circuit board (3) and sound producing unit (4), the sound producing unit is located on circuit board (3) and with circuit board (3) electricity is connected, stereo set (1) electricity respectively is connected with power amplifier (5), power amplifier (5) are located the inside of box (2), its characterized in that: box (2) are the rectangle, one side lateral wall of box (2) is equipped with chamber door (6) that can open and shut, keep away from box (2) one side lateral wall internal surface fixedly connected with fixing device of chamber door (6), fixing device includes connecting plate (7), one side surface of connecting plate (7) rotates and is connected with running roller (8), the fixed surface of running roller (8) is connected with the one end of wire rope (9), the other end fixedly connected with connecting device of wire rope (9), running roller (8) with be equipped with between connecting plate (7) and make wire rope (9) winding in torsional spring on running roller (8), connecting device is located the outside of box (2).

2. A directional sound according to claim 1, wherein: the connecting device comprises a main body (10), the main body (10) is cylindrical, a first blind hole (11) is arranged on one end surface of the main body (10), a second blind hole (12) is arranged on the inner surface of the first blind hole (11), the first blind hole (11) and the second blind hole (12) are coaxially arranged with the main body (10) respectively, the diameter of the second blind hole (12) is smaller than that of the first blind hole (11), a movable rod (13) is slidably connected to the inner surface of the second blind hole (12), a first spring (14) is arranged between the movable rod (13) and the second blind hole (12), the movable rod (13) is correspondingly located at one end of the first blind hole (11) and fixedly connected with a movable plate (15), a movable groove (16) is arranged on the inner surface of the first blind hole (11), and a fixed block (17) is slidably connected to the inner surface of the movable groove (16) respectively, and second springs (18) are respectively arranged between the fixed blocks (17) and the corresponding movable grooves (16).

3. A directional sound according to claim 2, wherein: the movable plate (15) is in a circular truncated cone shape, the diameter of one end, far away from the second blind hole (12), of the movable plate (15) is larger than that of the other end of the movable plate (15), and the surface of the fixed block (17) is attached to the surface of the movable plate (15).

4. A directional sound according to claim 1, wherein: the side wall of one side, far away from the box door (6), of the box body (2) penetrates through a through groove, a shell (19) is fixedly connected to the inner surface of the through groove, the connecting plate (7) is fixedly connected to the side wall of the shell (19), and the connecting device is located inside the shell (19).

5. A directional sound according to claim 4, wherein: running roller (8) are kept away from the coaxial gear (20) that is equipped with of one end of connecting plate (7), the lateral wall sliding connection of casing (19) has ejector pin (21), the surface of ejector pin (21) is equipped with limiting plate (22), limiting plate (22) with be equipped with third spring (23) between casing (19).

6. A directional sound according to claim 1, wherein: and two ends of the roller (8) are respectively provided with a baffle (24).

7. A directional sound according to claim 1, wherein: the outer surface of the side wall of one side of the box body (2) far away from the box door (6) is provided with an anti-skidding rubber cushion.

8. A directional sound according to claim 7, wherein: and anti-skidding convex points are arranged on the surface of the anti-skidding rubber mat.