CN212628414U

CN212628414U - Sound amplifying device

Info

Publication number: CN212628414U
Application number: CN201821509393.9U
Authority: CN
Inventors: 苏鲁杭
Original assignee: Shaoxing Ruida Electronic Technology Co ltd
Current assignee: Shaoxing Ruida Electronic Technology Co ltd
Priority date: 2018-09-16
Filing date: 2018-09-16
Publication date: 2021-02-26
Anticipated expiration: 2028-09-16

Abstract

The utility model discloses a public address set, comprising a base plate, casing and public address set body, the lower extreme of bottom plate is equipped with two recesses, be equipped with running gear in the recess, casing fixed connection is on the bottom plate, one side lateral wall of casing runs through and is equipped with the worm, it is connected with two axis of rotation to rotate in the casing, be connected through the drive mechanism transmission between worm and the axis of rotation, all be equipped with the first adjustment mechanism who adjusts running gear in two axis of rotation, public address set body fixed connection is on the casing, casing upper end one side fixedly connected with riser, public address set body and riser fixed connection, it is connected with the baffle to rotate on the lateral wall of one side that the riser is close to the public address set body, the top of. The utility model can lift the roller by arranging the walking mechanism and the first adjusting mechanism, thereby being convenient for moving the sound amplifying device; through setting up second adjustment mechanism, a baffle is cooperated, is convenient for shelter from the rainwater.

Description

Sound amplifying device

Technical Field

The utility model relates to a megaphone technical field especially relates to a public address set.

Background

The loudspeaker is used for amplifying and transmitting sound more far as the name implies, and the sound penetrating power of the loudspeaker is stronger compared with that of a sound box. Loudspeakers can be divided into various types according to their volume, mode of use and use, each having its advantages in use. The portable loudspeaker is limited by the shape, size and horn, and the power is generally only 3W to 8W. The wireless loudspeaker and the wired loudspeaker have different sizes and different purposes, and are small in size, suitable for teachers and tour guides, hung on the waist, free to play by hands, and generally have the power of 3W-8W. The large-volume solar water heater is suitable for places with large flow of people such as outdoor activities, summer camp, out-of-class lectures and the like, and the power is 39W to 95W.

In the prior art, when a school takes outdoor lectures and other games, a loudspeaker with a large volume is needed, and the loudspeaker is very inconvenient because the loudspeaker has a large volume and can be manually carried back and forth during use and after use; and when raining, easily drenched by the rain for the circuit short circuit damages public address set.

To this end, we propose a sound amplifying device to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a sound amplifying device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a public address set, includes bottom plate, casing and public address set body, the lower extreme of bottom plate is equipped with two recesses, be equipped with running gear in the recess, casing fixed connection is on the bottom plate, one side lateral wall of casing runs through and is equipped with the worm, it is connected with two axis of rotation to rotate in the casing, be connected through the drive mechanism transmission between worm and the axis of rotation, two all be equipped with the first adjustment mechanism who carries out the regulation to running gear in the axis of rotation, public address set body fixed connection is on the casing, casing upper end one side fixedly connected with riser, public address set body and riser fixed connection, the riser rotates on being close to one side lateral wall of public address set body and is connected with the baffle, the top of baffle is equipped with second adjustment mechanism.

Preferably, running gear includes the U-shaped board, it is connected with the gyro wheel to rotate between the both ends of U-shaped board, the U-shaped board pass through two movable rods respectively with the both sides wall sliding connection of recess, pass through spring fixed connection between the bottom of U-shaped board and recess.

Preferably, the first adjusting mechanism comprises gears which are coaxially and fixedly connected with the two rotating shafts, two first openings are formed in the lower side wall of the shell, two second openings which are communicated with the two grooves respectively are formed in the bottom plate, racks are fixedly connected to the middle portions, close to the bottoms of the grooves, of the U-shaped plates, the racks sequentially penetrate through the first openings and the second openings, and the two gears are meshed with the two racks respectively.

Preferably, both side walls of the groove are provided with first sliding grooves, first sliding blocks matched with the first sliding grooves are arranged in the first sliding grooves, and the two first sliding blocks are fixedly connected with the two movable rods respectively.

Preferably, the transmission mechanism comprises a worm wheel fixedly connected with the rotating shaft coaxially, and the worm wheel is meshed with the worm wheel.

Preferably, second adjustment mechanism includes electric telescopic handle, electric telescopic handle passes through connecting plate and riser fixed connection, the last lateral wall of baffle is equipped with the second spout, be equipped with assorted second slider with it in the second spout, the second slider rotates with electric telescopic handle's lower extreme to be connected.

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

1. by arranging the travelling mechanism and the first adjusting mechanism, the roller can be lifted, so that the loudspeaker device can be moved conveniently;

2. through setting up second adjustment mechanism, a baffle can play and adjust the baffle, is convenient for shelter from the rainwater, avoids public address set's damage.

Drawings

Fig. 1 is a perspective view of a sound amplifying device according to the present invention;

FIG. 2 is an enlarged schematic view of the structure at A in FIG. 1;

fig. 3 is an external schematic structural diagram of a sound amplifying device according to the present invention.

In the figure: the loudspeaker comprises a base plate 1, a shell 2, a loudspeaker body 3, a groove 4, a walking mechanism 5, a worm 6, a rotating shaft 7, a transmission mechanism 8, a first adjusting mechanism 9, a vertical plate 10, a baffle 11, a second adjusting mechanism 12, a U-shaped plate 13, a roller 14, a movable rod 15, a spring 16, a gear 17, a rack 18, a first sliding groove 19, a first sliding block 20, a worm wheel 21, an electric telescopic rod 22, a connecting plate 23, a second sliding groove 24 and a second sliding block 25.

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.

Referring to fig. 1-3, a sound amplifying device comprises a bottom plate 1, a shell 2 and a sound amplifying device body 3, wherein two grooves 4 are formed in the lower end of the bottom plate 1, a traveling mechanism 5 is arranged in each groove 4, specifically, each traveling mechanism 5 comprises a U-shaped plate 13, rollers 14 are rotatably connected between two ends of each U-shaped plate 13, each U-shaped plate 13 is slidably connected with two side walls of each groove 4 through two movable rods 15, it is worth mentioning that first sliding grooves 19 are formed in two side walls of each groove 4, first sliding blocks 20 matched with the first sliding grooves are arranged in the first sliding grooves 19, and the two first sliding blocks 20 are fixedly connected with the two movable rods 15 respectively.

The utility model discloses in, through 16 fixed connection of spring between the bottom of U-shaped board 13 and recess 4, 2 fixed connection of casing are on bottom plate 1, one side lateral wall of casing 2 runs through and is equipped with worm 6, and is concrete, and worm 6 is located the coaxial fixedly connected with handle of the outer one end of

casing

2, and 2 internal rotations of casing are connected with two axis of rotation 7, are connected through 8 transmissions of drive mechanism between worm 6 and the axis of rotation 7, it is noted that drive mechanism 8 includes the worm wheel 21 with 7 coaxial fixed connection of axis of rotation, worm 6 meshes with worm wheel 21 mutually.

The utility model discloses in, all be equipped with the first adjustment mechanism 9 that adjusts running gear 5 in two axis of rotation 7, it needs to explain, first adjustment mechanism 9 includes the gear 17 with two equal coaxial fixed connection of axis of rotation 7, the lower lateral wall of casing 2 is equipped with two first openings, be equipped with two second openings that are linked together with two recess 4 respectively on the bottom plate 1, two U-shaped boards 13 are close to the equal fixedly connected with rack 18 in middle part of recess 4 bottom, rack 18 runs through first opening and second opening setting in proper order, two gear 17 mesh with two rack 18 respectively mutually, 3 fixed connection of public address device body are on

casing

2, 2 upper end one side fixedly connected with risers 10 of casing, public address device body 3 and riser 10 fixed connection, it is connected with baffle 11 to rotate on the lateral wall of one side that riser 10 is close to public address device body 3.

The utility model discloses in, what baffle 11's top was equipped with second adjustment mechanism 12 and needs to explain, second adjustment mechanism 12 includes electric telescopic handle 22, and electric telescopic handle 22 passes through connecting plate 23 and riser 10 fixed connection, and baffle 11's last lateral wall is equipped with second spout 24, is equipped with assorted second slider 25 with it in the second spout 24, and second slider 25 rotates with electric telescopic handle 22's lower extreme to be connected.

When the utility model is used, the handle is rotated, the handle drives the worm 6 to rotate, the worm 6 drives the two worm wheels 21 to rotate, the worm wheels 21 drive the rotating shaft 7 to rotate, the rotating shaft 7 drives the gear 17 to rotate, the gear 17 drives the rack 18 to move downwards, the rack 18 drives the U-shaped plate 13 to move downwards, the U-shaped plate 13 drives the roller 14 to move downwards, then the device is pushed, when the device is pushed to a position to be used, the handle is rotated reversely, the roller 14 is accommodated in the groove 4, and the device is placed at the required position; when raining, adjust electric telescopic handle 22, electric telescopic handle 22 drives baffle 11 and rotates to keep off the rain.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A sound amplifying device comprises a bottom plate (1), a shell (2) and a sound amplifying device body (3), and is characterized in that the lower end of the bottom plate (1) is provided with two grooves (4), walking mechanisms (5) are arranged in the grooves (4), the shell (2) is fixedly connected onto the bottom plate (1), one side wall of the shell (2) is provided with a worm (6) in a penetrating manner, the shell (2) is rotatably connected with two rotating shafts (7) in a rotating manner, the worm (6) is in transmission connection with the rotating shafts (7) through a transmission mechanism (8), the two rotating shafts (7) are respectively provided with a first adjusting mechanism (9) for adjusting the walking mechanisms (5), the sound amplifying device body (3) is fixedly connected onto the shell (2), one side of the upper end of the shell (2) is fixedly connected with a vertical plate (10), the sound amplifying device body (3) is fixedly connected with the vertical plate (10), the loudspeaker is characterized in that a baffle (11) is rotatably connected to one side wall, close to the loudspeaker body (3), of the vertical plate (10), and a second adjusting mechanism (12) is arranged above the baffle (11).

2. The loudspeaker device as recited in claim 1, wherein the travelling mechanism (5) comprises a U-shaped plate (13), rollers (14) are rotatably connected between two ends of the U-shaped plate (13), the U-shaped plate (13) is slidably connected with two side walls of the groove (4) through two movable rods (15), and the U-shaped plate (13) is fixedly connected with the bottom of the groove (4) through a spring (16).

3. The loudspeaker device as recited in claim 2, wherein the first adjusting mechanism (9) comprises a gear (17) coaxially and fixedly connected with both of the two rotating shafts (7), the lower side wall of the casing (2) is provided with two first openings, the bottom plate (1) is provided with two second openings respectively communicated with the two grooves (4), the middle parts of the two U-shaped plates (13) close to the bottoms of the grooves (4) are respectively and fixedly connected with a rack (18), the racks (18) sequentially penetrate through the first openings and the second openings, and the two gears (17) are respectively meshed with the two racks (18).

4. The loudspeaker device according to claim 2, wherein two side walls of the groove (4) are provided with first sliding grooves (19), the first sliding grooves (19) are provided with first sliding blocks (20) matched with the first sliding grooves, and the two first sliding blocks (20) are respectively fixedly connected with the two movable rods (15).

5. A loudspeaker device according to claim 1, wherein the transmission mechanism (8) comprises a worm wheel (21) fixedly connected coaxially to the axis of rotation (7), the worm (6) engaging with the worm wheel (21).

6. The loudspeaker device as recited in claim 1, wherein the second adjusting mechanism (12) comprises an electric telescopic rod (22), the electric telescopic rod (22) is fixedly connected with the vertical plate (10) through a connecting plate (23), the upper side wall of the baffle plate (11) is provided with a second sliding groove (24), a second sliding block (25) matched with the second sliding groove is arranged in the second sliding groove (24), and the second sliding block (25) is rotatably connected with the lower end of the electric telescopic rod (22).