CN211531253U

CN211531253U - Angle-adjustable loudspeaker structure for English listening comprehension test

Info

Publication number: CN211531253U
Application number: CN202020592167.2U
Authority: CN
Inventors: 胡艳玲
Original assignee: Changsha Vocational and Technical College
Current assignee: Changsha Vocational and Technical College
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-09-18
Anticipated expiration: 2030-04-20

Abstract

The utility model relates to a speaker technical field specifically is a speaker structure is used in english listening comprehension test with adjustable angle, including speaker main part and fixed mounting board, the vertical first rotation piece that is equipped with of speaker main part tip, the side of fixed mounting board and the position level that is located the middle part are equipped with the first fixed flange of symmetric distribution, well below of fixed mounting board side and the position that is close to first fixed flange are equipped with the outside first U-shaped mounting panel of opening level, the vertical first step motor that is provided with in side of first U-shaped mounting panel inner wall, swing joint has linking fixed plate between two first fixed flanges. This speaker structure is used in english listening comprehension test with adjustable angle can drive through first step motor and link up the fixed plate and rotate about to angle about the adjustment speaker can drive the speaker through second step motor and rotate from top to bottom, thereby the every single move angle of adjustment speaker.

Description

Angle-adjustable loudspeaker structure for English listening comprehension test

Technical Field

The utility model relates to a speaker technical field specifically is an english listening comprehension test is with speaker structure with adjustable angle.

Background

The loudspeaker is a common electroacoustic transducer, can change the signal of telecommunication into acoustic signal, need play the examination question through the loudspeaker in english listening comprehension test, but the loudspeaker all is fixed mounting in the classroom, and the position is all higher, just is difficult for readjustment angle after the installation, if the angle of loudspeaker is too high or low can all influence student's listening test, causes the influence to student's examination, in view of this, we provide an angle adjustable english listening comprehension test and use speaker structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an english listening comprehension test is with speaker structure with adjustable angle to it just can not angle of adjustment and influence the problem of student english listening comprehension test to provide current speaker in solving above-mentioned background art after the installation.

In order to achieve the above object, the utility model provides a following technical scheme:

an angle-adjustable loudspeaker structure for English listening comprehension tests comprises a loudspeaker main body and a fixed mounting plate, wherein a first rotating block is vertically arranged at the end part of the loudspeaker main body, first fixed convex plates which are symmetrically distributed are horizontally arranged at the position, located at the middle part, of the side surface of the fixed mounting plate, a first U-shaped mounting plate with an outward opening level is arranged at the position, located at the middle lower part, close to the first fixed convex plates, of the middle part of the side surface of the fixed mounting plate, a first stepping motor is vertically arranged at the side surface of the inner wall of the first U-shaped mounting plate, a linking fixed plate is movably connected between the two first fixed convex plates, a second rotating block is horizontally arranged at the middle part of one side of the linking fixed plate, second fixed convex blocks which are symmetrically distributed are vertically arranged at the middle part of the other side of the linking fixed plate, and a second U-shaped mounting plate with, and a second stepping motor is horizontally arranged on one side of the inner wall of the second U-shaped mounting plate.

Preferably, the first rotating block is located between the two second fixing protrusions, and the speaker body is hinged to the connecting fixing plate.

Preferably, the second rotating block is located between the two first fixed convex plates, and the connecting fixed plate is hinged to the fixed mounting plate.

Preferably, the end of the output shaft of the first stepping motor sequentially passes through the first U-shaped mounting plate and the first fixed convex plate and is coaxially connected with the second rotating block.

Preferably, the end part of the output shaft of the second stepping motor sequentially passes through the second U-shaped mounting plate and the second fixing lug and is coaxially connected with the first rotating block.

Preferably, two groups of fastening screws which are symmetrically distributed are arranged on the side face of the fixed mounting plate and close to the two ends of the fixed mounting plate.

Compared with the prior art, the beneficial effects of the utility model are that:

this speaker structure is used in english listening comprehension test with adjustable angle can drive through first step motor and link up the fixed plate and control the rotation to angle about the adjustment speaker can drive the speaker through second step motor and rotate from top to bottom, thereby the every single move angle of adjustment speaker avoids causing the influence to student's english listening comprehension test.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the fixing mounting plate and the connecting fixing plate of the present invention;

fig. 3 is the utility model provides a speaker main part and linking fixed plate structure sketch map.

In the figure: the loudspeaker comprises a loudspeaker body 1, a first rotating block 10, a fixed mounting plate 2, a first fixed convex plate 20, a first U-shaped mounting plate 21, a fastening screw 22, a connecting and fixing plate 3, a second fixed convex block 30, a second U-shaped mounting plate 31, a second rotating block 32, a first stepping motor 4 and a second stepping motor 5.

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.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-3, the present invention provides a technical solution:

a loudspeaker structure with adjustable angle for English listening comprehension test comprises a loudspeaker main body 1 and a fixed mounting plate 2, wherein a first rotating block 10 is vertically arranged at the end part of the loudspeaker main body 1, first fixed convex plates 20 which are symmetrically distributed are horizontally arranged at the side surface of the fixed mounting plate 2 and at the position which is positioned at the middle part, a first U-shaped mounting plate 21 with an outward opening level is arranged at the position which is positioned at the middle lower part of the side surface of the fixed mounting plate 2 and is close to the first fixed convex plate 20, the position of a first stepping motor 4 is fixed through the first U-shaped mounting plate 21, the first stepping motor 4 is supported, a first stepping motor 4 is vertically arranged at the side surface of the inner wall of the first U-shaped mounting plate 21, a linking fixing plate 3 is movably connected between the two first fixed convex plates 20, the first fixed convex plates 20 play the role of limiting and supporting for the linking fixing plate 3, a second rotating block 32 is horizontally arranged at the, the vertical fixed lug 30 of second that is equipped with the symmetric distribution in middle part of linking up 3 opposite sides of fixed plate, the fixed lug 30 of second plays support and spacing effect to speaker main part 1, the side that links up fixed plate 3 and the position that is close to the fixed lug 30 of second is equipped with the ascending second U-shaped mounting panel 31 of opening, the one side level of second U-shaped mounting panel 31 inner wall is provided with second step motor 5, second U-shaped mounting panel 31 plays support and fixed effect to second step motor 5.

In this embodiment, the first rotating block 10 is located between the two second fixing bumps 30, and the speaker body 1 is hinged to the connecting fixing plate 3, so that the pitch angle of the speaker body 1 can be conveniently adjusted.

Specifically, the second rotating block 32 is located between the two first fixed protruding plates 20, and the connection fixed plate 3 is hinged to the fixed mounting plate 2, so that the connection fixed plate 3 rotates left and right conveniently.

Further, the end of the output shaft of the first stepping motor 4 sequentially passes through the first U-shaped mounting plate 21 and the first fixed protruding plate 20 and is coaxially connected with the second rotating block 32, and the first stepping motor 4 drives the linking fixing plate 3 to rotate left and right, so that the left and right angles of the loudspeaker main body 1 are adjusted.

Further, the end of the output shaft of the second stepping motor 5 sequentially passes through the second U-shaped mounting plate 31 and the second fixing bump 30 and is coaxially connected with the first rotating block 10, and the second stepping motor 5 drives the speaker body 1 to rotate up and down, so that the pitching angle of the speaker body 1 is adjusted.

Besides, the side of the fixed mounting plate 2 and the positions close to the two ends are provided with two sets of fastening screws 22 which are symmetrically distributed, and the fixed mounting plate 2 is connected with the wall surface through the fastening screws 22, so that the loudspeaker can be fixedly mounted on the wall surface.

The english listening comprehension test of adjustable angle of this embodiment uses the speaker structure, the user drives the fixed lug 30 of second and rotates through first step motor 4, control links up fixed plate 3 and carries out the left and right sides direction on the horizontal plane and rotates, thereby drive speaker main part 1 through linking up fixed plate 3 and control angle modulation about, rethread second step motor 5 drives first rotation block 10 and rotates, control speaker main part 1 carries out the upper and lower direction rotation on the perpendicular, thereby adjust speaker main part 1's every single move angle, can accomplish a plurality of angular adjustment of speaker 1 through first step motor 4 and second step motor 5, thereby make the student can normally hear the listening content, avoid influencing student's english examination.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a speaker structure is used in english listening comprehension test with adjustable angle, includes speaker main part (1) and fixed mounting board (2), its characterized in that: speaker main part (1) tip is vertical to be equipped with first turning block (10), the side of fixed mounting board (2) and the position level that is located the middle part are equipped with first fixed flange (20) of symmetric distribution, well below and being close to of fixed mounting board (2) side the position of first fixed flange (20) is equipped with the outside first U-shaped mounting panel (21) of opening level, the vertical first step motor (4) that is provided with in side of first U-shaped mounting panel (21) inner wall, two swing joint has linking fixed plate (3) between first fixed flange (20), the middle part level that links up fixed plate (3) one side is equipped with second turning block (32), the vertical second fixed lug (30) that are equipped with symmetric distribution in middle part of linking fixed plate (3) opposite side, the side that links up fixed plate (3) and is close to the position of second fixed lug (30) is equipped with the ascending second U-shaped mounting panel (31) of opening And a second stepping motor (5) is horizontally arranged on one side of the inner wall of the second U-shaped mounting plate (31).

2. The angle-adjustable loudspeaker structure for english listening comprehension test of claim 1, wherein: the first rotating block (10) is located between the two second fixing lugs (30), and the loudspeaker body (1) is hinged to the connecting fixing plate (3).

3. The angle-adjustable loudspeaker structure for english listening comprehension test of claim 1, wherein: the second rotating block (32) is positioned between the two first fixed convex plates (20), and the connecting fixed plate (3) is hinged to the fixed mounting plate (2).

4. The angle-adjustable loudspeaker structure for english listening comprehension test of claim 1, wherein: the end part of the output shaft of the first stepping motor (4) sequentially passes through the first U-shaped mounting plate (21) and the first fixed convex plate (20) and is coaxially connected with the second rotating block (32).

5. The angle-adjustable loudspeaker structure for english listening comprehension test of claim 1, wherein: the end part of the output shaft of the second stepping motor (5) sequentially penetrates through the second U-shaped mounting plate (31) and the second fixing lug (30) and is coaxially connected with the first rotating block (10).

6. The angle-adjustable loudspeaker structure for english listening comprehension test of claim 1, wherein: and two groups of fastening screws (22) which are symmetrically distributed are arranged on the side surface of the fixed mounting plate (2) and close to the two ends.