CN217135643U

CN217135643U - Underground sound box

Info

Publication number: CN217135643U
Application number: CN202220722300.0U
Authority: CN
Inventors: 邢瑞彪; 王友馨; 梁子珺; 郭俭芝; 刘杨
Original assignee: Beijing Huizezhiye Technology Co ltd
Current assignee: Beijing Huizezhiye Technology Co ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2022-08-05
Anticipated expiration: 2032-03-29

Abstract

The application provides a bury formula stereo set, includes casing, lifter plate, drive assembly and pronunciation component. The shell is embedded on the ground and provided with an inner cavity, and the upper surface of the shell is provided with a plurality of sound outlet holes; the lifting plate is arranged in the inner cavity in a sliding manner, and the upper surface of the lifting plate is provided with a plurality of sealing columns; the driving assembly is arranged between the shell and the lifting plate and is used for driving the lifting plate to move; the sound producing element is fixedly arranged in the inner cavity and used for producing sound. When the device is actually used, the driving element is utilized to drive the lifting plate to descend to the sealing column to be separated from the sound outlet, and the sound component is started to transmit sound to the ground through the sound outlet; after the device is used, the sounding element is closed, and the driving element is utilized to drive the lifting plate to ascend to the sealing column to be inserted into the sounding hole, so that external dust and liquid are prevented from entering the inner cavity. The application provides a bury formula stereo set can realize making this device can assemble in the arbitrary space on the platform with pronunciation component pre-buried pronunciation underground, has improved the stability of the directional transmission of signal.

Description

Underground sound box

Technical Field

The application belongs to the technical field of outdoor stereo set, concretely relates to bury formula stereo set.

Background

On the platform of the railway station, the staff needs to broadcast the passengers to transmit signals for reminding the passengers of safety, organizing the passengers to get on the train and the like. In general, the signal transmission process needs to be implemented by a broadcast system installed on a station; specifically, the broadcasting system plays a preset sound source, and the volume covers the whole platform area, thereby completing the directional guidance for passengers.

With the development of technology, the signal transmission is not limited to the full-area signal coverage, but the fixed-point signal transmission of each partition; for example, a sound source is reported in a waiting space of a certain station in a certain carriage, and another sound source is reported in another waiting space of another carriage, so that signal transmission aiming at different crowds is realized, and the content of the signal transmission is more accurate.

The inventor finds that in order to realize the process, a plurality of broadcasting horns are required to be loaded at different waiting places, and the broadcasting horns are generally arranged on a suspended ceiling and a supporting column of a rain-proof shed; however, the rain-proof sheds of part of stations are far away from the stop positions of the trains, so that the volume of the horn cannot be completely covered; and if will install loudspeaker in the outside of weather enclosure, the life that experiences wind and rain throughout the year can very big degree shorten loudspeaker.

In summary, the mounting position of the broadcast speaker in the prior art is limited, and the stability of the signal transmission process in the directional area is poor.

Disclosure of Invention

The embodiment of the application provides a bury formula stereo set, realizes installing sound equipment on ground to ensure that the signal can stably transmit in the region.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

provided is a buried sound box including:

a housing having an interior cavity; the upper surface of the shell is provided with a plurality of sound outlet holes;

the lifting plate is arranged in the inner cavity in a longitudinally sliding manner; the upper surface of the lifting plate is provided with a plurality of sealing columns which extend from bottom to top and are suitable for being correspondingly spliced with the sound outlet holes one by one;

the driving assembly is arranged between the shell and the lifting plate and used for driving the lifting plate to lift relative to the shell so as to enable the sealing column to be inserted into or withdrawn from the sound outlet hole; and

and the sounding element is fixedly arranged in the inner cavity and is used for sounding.

In one possible implementation, the drive assembly includes:

the two ends of the first spring are respectively connected with the lifting plate and the upper surface of the inner cavity;

the first electromagnet is arranged on the lifting plate; and

the first armature is arranged in the inner cavity and is positioned below the first electromagnet;

when the sealing columns are correspondingly inserted into the sound outlet holes one by one, the first spring is in a normal state; when the sealing column moves downwards to exit the sound outlet hole, the first spring is in an elastic stretching state;

when the first electromagnet is electrified, attraction force is generated between the first armature and the first electromagnet, so that the lifting plate moves from top to bottom to the sealing column to exit from the sound outlet.

In a possible implementation manner, at least two guide arms are arranged on the upper surface of the inner cavity at intervals along the circumferential direction of the lifting plate, each guide arm extends from top to bottom, and the lower end of each guide arm is provided with a supporting plate extending along the transverse direction and used for supporting the lifting plate; wherein the first armature is disposed on the support plate.

In one possible implementation, an anti-bending rod is arranged between the supporting plate and the upper surface of the inner cavity; the anti-bending rod is axially arranged along the vertical direction, two ends of the anti-bending rod are respectively connected with the upper surface of the inner cavity and the upper surface of the supporting plate and penetrate through the lifting plate, and the anti-bending rod is inserted into the inner ring of the first spring.

In one possible implementation, the drive assembly includes:

the two ends of the second spring are respectively connected with the lifting plate and the upper surface of the inner cavity;

the second electromagnet is arranged on the lifting plate; and

the second armature is arranged on the upper surface of the inner cavity and is positioned above the second electromagnet;

when the sealing columns are correspondingly inserted into the sound outlet holes one by one, the second spring is in a normal state; when the sealing column moves downwards to exit the sound outlet hole, the second spring is in an elastic stretching state;

when the second electromagnet is electrified, repulsion force is generated between the second armature and the second electromagnet, so that the lifting plate moves from top to bottom to the sealing column to exit the sound outlet.

In a possible implementation manner, a mounting plate is connected to the bottom of the lifting plate, and the second electromagnet is arranged on the mounting plate;

the connecting part of the mounting plate and the second electromagnet is positioned below the upper surface of the lifting plate; when the sealing column is inserted into the sound outlet, the second armature is connected with the second electromagnet, or a gap exists between the second armature and the second electromagnet.

In a possible implementation manner, a damping block is arranged between the lifting plate and the upper surface of the inner cavity, and the damping block is fixedly arranged on the upper surface of the lifting plate or the upper surface of the inner cavity;

when the sealing column is inserted into the sound outlet, the lifting plate is connected with the upper surface of the inner cavity through the damping block.

In a possible implementation manner, the sound outlet adopts a flaring structure with the diameter gradually increasing from top to bottom, and the upper end of the sealing column adopts a necking structure which is matched with the sound outlet and has the cross-sectional area gradually decreasing from bottom to top.

In the embodiment of the application, with the casing pre-buried to the underground, can realize the fixed point of stereo set and arrange under the prerequisite of avoiding interfering the pedestrian.

When local broadcasting is needed, the driving element is utilized to drive the lifting plate to descend to the sealing column to be separated from the sound outlet hole, and the sound producing element is started to enable sound to be transmitted to the ground through the sound outlet hole.

After the local broadcasting, the sounding element is closed, and the driving element drives the lifting plate to ascend to the sealing column to be inserted into the sound outlet hole so as to prevent external dust and liquid from entering the inner cavity.

Compared with the prior art, the buried sound box provided by the embodiment can realize the embedding of the sounding element in the underground sounding, so that the region limitation during installation is reduced, the device can be assembled in any space on a platform, the signal transmission can be ensured to cover a required area, and the stability of signal directional transmission is improved.

Drawings

Fig. 1 is a schematic perspective view of a buried audio provided in an embodiment of the present application;

fig. 2 is a second schematic perspective view of a buried audio device according to an embodiment of the present application;

FIG. 3 is a top view of FIG. 2;

FIG. 4 is a sectional view taken along line A-A of FIG. 3;

FIG. 5 is a perspective view of a driving assembly used in the first embodiment of the present application;

FIG. 6 is a perspective view of a driving assembly used in a second embodiment of the present application;

description of reference numerals:

1. a housing; 11. an inner cavity; 12. a sound outlet; 13. a guide arm; 14. a support plate; 15. a buckling preventive bar; 2. a lifting plate; 21. sealing the column; 22. mounting a plate; 3. a drive assembly; 31. a first spring; 32. a first electromagnet; 33. a first armature; 34. a second spring; 35. a second electromagnet; 36. a second armature; 4. a sound-producing element; 5. a damping block.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Referring to fig. 1 to 6 together, the buried audio provided by the present application will now be described. The buried type sound box is buried on the ground and structurally comprises a shell 1, a lifting plate 2, a driving assembly 3 and a sounding element 4.

The shell 1 is provided with an inner cavity 11, and the upper surface of the shell 1 is provided with a plurality of sound outlet holes 12;

the lifting plate 2 is arranged in the inner cavity 11 in a sliding manner along the longitudinal direction, and the upper surface of the lifting plate 2 is provided with a plurality of sealing columns 21 which extend from bottom to top and are suitable for being plugged with the plurality of sound outlet holes 12 in a one-to-one correspondence manner.

The driving assembly 3 is disposed between the housing 1 and the lifting plate 2, and is used for driving the lifting plate 2 to lift relative to the housing 1, so that the sealing column 21 is inserted into or withdrawn from the sound outlet 12.

The sounding element 4 is fixedly arranged in the inner cavity 11 and is used for sounding outwards; in the present embodiment, the sound emitting member 4 is located directly below the lifting plate 2, and the sound emitting direction is parallel to the up-down direction. It should be noted that the sound generating element 4 adopted in the present embodiment has a function of recording a sound track in advance, and the sound generating principle thereof is the same as that of the prior art, and is similar to a speaker, a loudspeaker, and the like, and is not described herein again.

In the embodiment of the application, the shell 1 is embedded underground, so that the fixed-point arrangement of the sound box can be realized on the premise of avoiding intervening pedestrians.

When local broadcasting is needed, the driving element drives the lifting plate 2 to descend to the sealing column 21 to be separated from the sound outlet 12, and the sound producing element 4 is opened, so that sound is transmitted to the ground through the sound outlet 12.

After the local broadcast, the sound producing component 4 is closed, and the driving component drives the lifting plate 2 to lift until the sealing column 21 is inserted into the sound outlet 12, so as to prevent external dust and liquid from entering the inner cavity 11.

Compared with the prior art, the buried sound box provided by the embodiment can realize the embedding of the sounding element 4 in the ground, so that the region limitation during installation is reduced, the device can be assembled in any space on a platform, the signal transmission can be ensured to cover a required area, and the stability of signal directional transmission is improved.

The applicant has devised two specific configurations of the driving assembly 3, and in the description of the present embodiment, two designs are defined as a first embodiment and a second embodiment, respectively.

In the first embodiment, the above-described characteristic driving assembly 3 may adopt a structure as shown in fig. 4 and 5. Referring to fig. 4 and 5, the driving assembly 3 includes a first spring 31, a first electromagnet 32, and a first armature 33.

Both ends of the first spring 31 are respectively connected with the lifting plate 2 and the upper surface of the inner cavity 11, and the axial direction of the first spring 31 is parallel to the up-down direction.

The first electromagnet 32 is provided on the lifting plate 2, specifically, on the upper surface of the lifting plate 2.

A first armature 33 is arranged in the interior 11 below the first electromagnet 32.

When the plurality of sealing columns 21 are correspondingly inserted into the plurality of sound outlet holes 12 one by one, the first spring 31 is in a normal state;

when the sealing column 21 moves downward to exit the sound outlet hole 12, the first spring 31 is in an elastic stretching state;

when the first electromagnet 32 is energized, an attractive force is generated between the first armature 33 and the first electromagnet 32, so that the lifting plate 2 moves from top to bottom to the sealing column 21 to exit the sound outlet 12, and the first spring 31 is converted from a normal state to an elastic stretching state.

By adopting the technical scheme, the first electromagnet 32 is used for generating magnetic force and generating suction force with the first armature 33, so that the lifting plate 2 is automatically lifted, the automation degree of the device in actual use is improved, and the stability in the use process is ensured.

It should be noted that how to electrify the electromagnet and how to realize the remote operation of the electrifying process belong to the prior art, which is not the main protection content of this patent, and therefore, the details are not repeated herein.

It should be further added that, when the sealing column 21 is inserted into the sound outlet 12, the first spring 31 may also be in an elastic stretching state, so as to continuously provide an upward pulling force to the lifting plate 2, so as to improve the capability of the lifting plate 2 against the longitudinal pressure; the above technical solution is adopted in the present application because the first spring 31 which constantly maintains the elastic stretching state greatly shortens the service life, which results in the stability of the device being reduced.

In some embodiments, the inner cavity 11 and the elevator plate 2 may be configured as shown in fig. 4 and 5. Referring to fig. 4 and 5, the upper surface of the inner cavity 11 has at least two guide arms 13, and the number of the guide arms 13 in this embodiment is four, and the four guide arms 13 are arranged at intervals along the circumferential direction of the lifting plate 2, specifically at four corner ends of the lifting plate 2.

Each guide arm 13 extends from top to bottom and has a support plate 14 extending in the transverse direction for supporting the lifter plate 2 at the lower end.

The first armature 33 described above is fixedly arranged on the support plate 14.

By adopting the technical scheme, when the first armature 33 and the first electromagnet 32 generate attraction, the lifting plate 2 moves downwards, so that the supporting plate 14 can support the lifting plate 2, the lifting plate 2 is limited to continuously move downwards, the damage caused by excessive elastic stretching of the first spring 31 is avoided, and the structural stability of the device in actual use is improved.

In some embodiments, the above-described feature support plate 14 and the upper surface of the interior chamber 11 may be configured as shown in fig. 4 and 5. Referring to fig. 4 and 5, the support plate 14 and the upper surface of the inner chamber 11 have an anti-buckling rod 15 therebetween.

The anti-bending rod 15 is axially arranged along the vertical direction, two ends of the anti-bending rod are respectively connected with the upper surface of the inner cavity 11 and the upper surface of the supporting plate 14 and penetrate through the lifting plate 2, and the anti-bending rod 15 is inserted into the inner ring of the first spring 31.

By adopting the technical scheme, on one hand, the anti-bending rod 15 can guide the lifting plate 2, and the lifting plate 2 is prevented from translating during lifting, so that the sealing columns 21 are ensured to be correspondingly inserted into the sound holes 12 one by one, and the stability of the device during use is improved; on the other hand, the anti-bending rod 15 can limit the radial buckling phenomenon of the first spring 31, and the structural stability of the device is improved.

In the second embodiment, the above-described characteristic driving assembly 3 may adopt a structure as shown in fig. 6. Referring to fig. 6, the driving assembly 3 includes a second spring 34, a second electromagnet 35, and a second armature 36.

Both ends of the second spring 34 are connected to the upper surfaces of the lifting plate 2 and the inner cavity 11, respectively, and the axial direction of the second spring 34 is parallel to the up-down direction.

The second electromagnet 35 is disposed on the lifting plate 2, specifically, disposed avoiding the sealing column 21, so as to avoid the influence on the process of inserting the sealing column 21 into the sound outlet 12.

The second armature 36 is disposed on the upper surface of the internal cavity 11 above the second electromagnet 35.

When the plurality of sealing columns 21 are correspondingly inserted into the plurality of sound outlet holes 12 one by one, the second spring 34 is in a normal state;

when the sealing column 21 moves downward to exit the sound outlet hole 12, the second spring 34 is in an elastic stretching state;

when the second electromagnet 35 is energized, a repulsive force is generated between the second armature 36 and the second electromagnet 35, so that the lifting plate 2 moves from top to bottom to the sealing column 21 to exit the sound outlet 12, and the second spring 34 changes from a normal state to an elastic stretching state.

By adopting the technical scheme, the second electromagnet 35 is used for generating magnetic force, and repulsion force is generated between the second electromagnet 35 and the second armature iron 36, so that the lifting plate 2 is automatically lifted, the automation degree of the device in actual use is improved, and the stability in the use process is ensured.

It should be added that when the sealing post 21 is inserted into the sound outlet 12, the second spring 34 can also be in an elastic stretching state, and the beneficial effects and the comparison result with the second embodiment are the same as those of the first spring 31, and will not be described again.

In some embodiments, the lifter plate 2 of the above-described feature may be configured as shown in fig. 6. Referring to fig. 6, the bottom of the lifting plate 2 is connected with a mounting plate 22, and a second electromagnet 35 is arranged on the mounting plate 22; the connecting portion between the mounting plate 22 and the second electromagnet 35 is located below the upper surface of the lifter plate 2.

When the sealing post 21 is inserted into the sound outlet 12, the second armature 36 and the second electromagnet 35 are connected, or a gap exists between the second armature 36 and the second electromagnet 35.

By adopting the technical scheme, the situation that the sealing column 21 is not completely inserted into the sound outlet 12 when the second armature 36 and the second electromagnet 35 are contacted with each other due to the fact that the part, protruding upwards, of the second electromagnet 35 on the upper surface of the lifting plate 2 is too high is avoided; therefore, the structure has the advantages that: the sealing column 21 can be completely inserted into the sound outlet hole 12, and the stability of the device in actual use is improved.

In some embodiments, the above features may be used between the elevator plate 2 and the upper surface of the cavity 11 as shown in fig. 5 and 6. Referring to fig. 5 and 6, a damping block 5 is arranged between the lifting plate 2 and the upper surface of the inner cavity 11, and the damping block 5 is made of a viscoelastic material and is fixedly arranged on the upper surface of the lifting plate 2 or the upper surface of the inner cavity 11.

Specifically, in the first embodiment, as shown in fig. 5, the damping block 5 is fixedly disposed on the upper surface of the inner cavity 11; in the second embodiment, as shown in fig. 6, the damping block 5 is fixedly provided on the upper surface of the elevating plate 2.

When the sealing column 21 is inserted into the sound outlet 12, the lifting plate 2 is connected with the upper surface of the inner cavity 11 through the damping block 5.

Through adopting above-mentioned technical scheme, at the reciprocal in-process that goes up and down of lifter plate 2, damping piece 5 plays noise abatement, reduces the effect of vibration, has improved the structural stability of this device.

It should be added that in any embodiment of the present application, the damping blocks 5 have four and are distributed along a rectangle to improve the stability of the damping effect.

In some embodiments, the sound outlet 12 and the sealing post 21 may be configured as shown in FIG. 4. Referring to fig. 4, each sound outlet 12 is formed with a flaring structure with gradually increasing hole diameter from top to bottom.

The upper end of each sealing column 21 adopts a necking structure which is matched with the sound outlet hole 12 and the cross section area of which is gradually reduced from bottom to top.

The fitting referred to herein means that, when the sealing post 21 is inserted into the sound outlet hole 12, the outer peripheral surface of the constricted portion of the sealing post 21 is in contact with the inner peripheral wall of the sound outlet hole 12, and the top surface area of the sealing post 21 is equal to the upper port area of the sound outlet hole 12.

By adopting the technical scheme, the beneficial effects are as follows:

firstly, because the upper end opening of the sound outlet hole 12 is smaller, when the sound box is used, the passing amount of impurities such as dust, liquid and the like is reduced, the cleanness of the inner cavity 11 is ensured, and the stability of the device in use is improved;

secondly, because the lower end opening of the sound outlet 12 is larger, the upper end of the sealing column 21 is more convenient to align when the sound box is assembled and used, and the stability of the device in use is improved;

thirdly, because the sound outlet 12 adopts a flaring structure, when any one or more sealing columns 21 transversely deform, the inner hole wall of the sound outlet 12 contacts with the upper ends of the sealing columns 21 to guide the sealing columns 21 towards the center of the sound outlet, so that the sealing columns 21 can gradually recover deformation, and the stability of the device in use is improved.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. Bury formula stereo set for bury underground subaerial, its characterized in that, bury formula stereo set and include:

2. The inground sound of claim 1, wherein the drive assembly includes:

the first electromagnet is arranged on the lifting plate; and

3. The embedded sound box of claim 2, wherein the upper surface of the inner cavity is provided with at least two guide arms at intervals along the circumferential direction of the lifting plate, each guide arm extends from top to bottom, and the lower end of each guide arm is provided with a supporting plate extending along the transverse direction and used for supporting the lifting plate; wherein the first armature is disposed on the support plate.

4. The underground sound of claim 3, wherein an anti-buckling rod is arranged between the supporting plate and the upper surface of the inner cavity; the anti-bending rod is axially arranged along the vertical direction, two ends of the anti-bending rod are respectively connected with the upper surface of the inner cavity and the upper surface of the supporting plate and penetrate through the lifting plate, and the anti-bending rod is inserted into the inner ring of the first spring.

5. The inground sound of claim 1, wherein the drive assembly includes:

the second electromagnet is arranged on the lifting plate; and

when the second electromagnet is electrified, repulsion force is generated between the second armature and the second electromagnet, so that the lifting plate moves from top to bottom to the sealing column to exit from the sound outlet hole.

6. The buried sound box of claim 5, wherein a mounting plate is connected to the bottom of the lifting plate, and the second electromagnet is arranged on the mounting plate;

7. The underground sound box of any one of claims 1-6, wherein a damping block is arranged between the lifting plate and the upper surface of the inner cavity, and the damping block is fixedly arranged on the upper surface of the lifting plate or the upper surface of the inner cavity;

8. The buried sound box of claim 1, wherein the sound outlet adopts a flaring structure with gradually increasing hole diameter from top to bottom, and the upper end of the sealing column adopts a necking structure with gradually decreasing cross-sectional area from bottom to top, which is matched with the sound outlet.