CN109218900A - A kind of multi-angle rotary sound equipment and its application method - Google Patents
A kind of multi-angle rotary sound equipment and its application method Download PDFInfo
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- CN109218900A CN109218900A CN201811035120.XA CN201811035120A CN109218900A CN 109218900 A CN109218900 A CN 109218900A CN 201811035120 A CN201811035120 A CN 201811035120A CN 109218900 A CN109218900 A CN 109218900A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
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- Acoustics & Sound (AREA)
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- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
Abstract
The invention discloses a kind of multi-angle rotary sound equipments, it includes Super Bass Loudspeaker Enclosure, multiple sound columns, the first bindiny mechanism and multiple second connecting mechanism for rotating, multiple sound columns are end to end and are placed in Super Bass Loudspeaker Enclosure, it is flexibly connected between multiple sound columns by the second connecting mechanism for rotating, sound column by the activity of the first bindiny mechanism or is fixedly connected with Super Bass Loudspeaker Enclosure.The invention also discloses a kind of application methods of above-mentioned multi-angle rotary sound equipment.Structure of the invention design is rationally ingenious, the two section sound columns to connect pass through the transmission that positive floating thimble, positive positioning pin, cathode floating thimble, cathode even draw elastic slice to realize electric signal, the setting of resistance gauge, sound column rotation is set more to have texture, multiple sound columns are end to end and are placed in Super Bass Loudspeaker Enclosure, and occupied area is small, the setting of the second connecting mechanism for rotating, convenient for rotating freely between more piece sound column, sound coverage area can be adjusted according to demand.
Description
Technical field
The present invention relates to stereo sets, and in particular to a kind of multi-angle rotary sound equipment and its application method.
Background technique
Stereo set is electronic product common in life, but existing stereo set is mostly fixed structure, loudspeaker court
Cause sound to be unevenly distributed because the acoustic signals of loudspeaker have certain directive property to fixation, make the listening of different direction
Impression has differences, and multiple sound equipments is needed to can be only achieved the purpose of comprehensive listening.
Summary of the invention
To solve the above-mentioned problems, the invention discloses a kind of multi-angle rotary sound equipment and its application methods.
Present invention technical solution used for the above purpose is:
A kind of multi-angle rotary sound equipment comprising Super Bass Loudspeaker Enclosure, multiple sound columns, the first bindiny mechanism and multiple second rotations
Turn bindiny mechanism, multiple sound columns are end to end and are placed in the Super Bass Loudspeaker Enclosure, pass through institute between multiple sound columns
State the flexible connection of the second connecting mechanism for rotating, the sound column and the Super Bass Loudspeaker Enclosure by the first bindiny mechanism activity or
It is fixedly connected.Multiple sound columns are end to end and are placed in Super Bass Loudspeaker Enclosure, and occupied area is small, and the second connecting mechanism for rotating is set
It sets, convenient for rotating freely between more piece sound column, sound coverage area can be adjusted according to demand.
Second connecting mechanism for rotating includes cover assembly and base assembly, and the cover assembly includes sound column connection
Lid, thread column and cathode even draw elastic slice, and the thread column is fixedly connected with the sound column connection cover, and the thread column is logical hearty cord
Structure, the thread column wall are fixedly installed with elastic slice mounting base, and the cathode even draws elastic slice to be mounted in the elastic slice mounting base,
The elastic slice mounting base is equipped with positioning pin mounting hole, is fixed in corresponding to the positioning pin mounting hole in the elastic slice mounting base
Positive positioning pin.
The base assembly includes connection pedestal, connection gear, positive floating thimble and cathode floating thimble, in the company
Pedestal is connect equipped with the connection through-hole for connecting cover assembly, the corresponding thread column is equipped with spiral tooth socket, and the spiral tooth socket is living
Dynamic to be mounted on the connection through-hole, the connection gear is arranged on the spiral tooth socket, and institute is corresponded to above the spiral tooth socket
Connection gear upper surface is stated equipped with device protection shell, the anode floating thimble, cathode floating thimble are movably arranged on described
On device protection shell.
The device protection shell correspond to the positive positioning pin, cathode even draw elastic slice be respectively equipped with the first thimble mounting hole and
Second thimble mounting hole, the anode floating thimble correspond to the first thimble mounting hole and are movably arranged on the device protection shell
On, the cathode floating thimble corresponds to the second thimble mounting hole and is movably arranged on the device protection shell.When anode is floating
Dynamic thimble and anode positioning pin connection, when cathode floating thimble even draws elastic slice to connect with cathode, the two section sound columns to connect pass through institute
State the transmission that positive floating thimble, positive positioning pin, cathode floating thimble, cathode even draw elastic slice to realize electric signal.
The first thimble mounting hole, the second thimble inner wall of the hole installing are respectively equipped with third card slot, the 4th card slot, it is described just
The third card slot is corresponded on pole floating thimble and is equipped with the first fixture block, is corresponded to the 4th card slot on the cathode floating thimble and is set
Have the second fixture block, in correspond to the third card slot on the positive floating thimble, the first fixture block is cased with first pressure spring, in institute
It states and corresponds to the 4th card slot on cathode floating thimble, the second fixture block is cased with second pressure spring.First pressure spring and second
The setting of compression spring when sound column rotates, passes through first pressure bullet convenient for popping up positive floating thimble, cathode floating thimble
Spring and second pressure spring keep positive floating thimble, cathode floating thimble even elastic slice to be drawn to connect with positive positioning pin, cathode respectively
Touching.
Resistance gauge is equipped on the outside of the connection gear, the resistance gauge includes tooth rest and driven gear, the gear
Frame is fixedly connected with the connection pedestal, and the driven gear corresponds to the connection gear and is movably arranged on the tooth rest,
And the driven gear and the connection gear are intermeshed.The setting of resistance gauge, when sound column rotates, driven gear is along connection
The rotation of gear outer ring reduces shaking gap when sound column rotation, sound column is made more to have matter when rotating to generate certain resistance
Sense.
It is successively arranged baffle, third compression spring, gear from inside to outside on the outside of the connection gear and buckles track, the 4th pressure
Power spring and switch combination, the baffle, gear buckle that track is equal to be fixedly connected with the connection pedestal, buckle track in the gear
The upper correspondence connection gear is movably installed with gear and buckles, and the gear buckles head end and passes through the third compression spring and the gear
Plate connection, the gear are buckled end and are connected by the 4th compression spring with the switch combination.
The switch combination includes the swich buckle being movably arranged on the device protection shell, the first sliding block and activity installation
The second sliding block on track is buckled in the gear, the 4th compression spring is connected with second sliding block, first sliding block
It is fixedly connected with the swich buckle, first sliding block and second sliding block are flexibly connected, and first sliding block is equipped with the
One inclined-plane corresponds to first inclined-plane on second sliding block equipped with the second inclined-plane.Moving switch button, swich buckle drive first to slide
Block is mobile, and first the second sliding block of slipper push buckles track Forward in gear, and the second sliding block pushes gear by the 4th compression spring
Button moves forward to locking connection gear, the setting that gear is buckled, and locking connection gear when screwing convenient for two section sound columns is non-slip.
The sound column and the Super Bass Loudspeaker Enclosure are flexibly connected by first bindiny mechanism, first bindiny mechanism with
The second connecting mechanism for rotating structure is identical.
A kind of application method of above-mentioned multi-angle rotary sound equipment, it is characterised in that: itself the following steps are included:
The cover assembly of first bindiny mechanism is fixed on Super Bass Loudspeaker Enclosure top by step 1, by the first bindiny mechanism
Base assembly is fixed on the sound column bottom end connected with Super Bass Loudspeaker Enclosure；
The cover assembly of second connecting mechanism for rotating is fixed on the top of above-mentioned sound column by step 2, and the second rotation is connected
The base assembly of connection mechanism is fixed on the bottom end of another section sound column；
Step 3, moving switch combination, Hasp lock with gear stop connection gear, the base assembly of a section sound column are passed through spiral tooth socket
Corresponding thread column is mounted on the cover assembly of another section sound column, rotates two section sound columns being connected to tighten spiral tooth socket and thread
Column keeps sound column described in two sections end to end；
Step 4, moving switch combination, gear, which is buckled, stops locking connection gear, rotates one section/more piece sound column direction, adjusts
Whole sound coverage area.
The invention has the benefit that structure of the invention design is rationally ingenious, the two section sound columns to connect pass through the anode
Floating thimble, positive positioning pin, cathode floating thimble, cathode even draw elastic slice to realize the transmission of electric signal, the setting of resistance gauge,
Sound column rotation is set more to have texture, multiple sound columns are end to end and are placed in Super Bass Loudspeaker Enclosure, and occupied area is small, and the second rotation connects
The setting of connection mechanism can adjust sound coverage area convenient for rotating freely between more piece sound column according to demand.
With reference to the accompanying drawing with specific embodiment, the present invention is further described.
Detailed description of the invention
Fig. 1 is perspective view of the invention；
Fig. 2 is the exploded view of cover assembly in the present invention；
Fig. 3 is the exploded view of base assembly in the present invention；
Fig. 4 is cover assembly and base assembly connection status diagram in the present invention；
Fig. 5 is the partial structure diagram of sound column in the present invention.
Specific embodiment
Embodiment, referring to Fig. 1 to Fig. 5, a kind of multi-angle rotary sound equipment provided in this embodiment comprising Super Bass Loudspeaker Enclosure
1, multiple sound columns 2, the first bindiny mechanism 3 and multiple second connecting mechanism for rotating 4, multiple sound columns 2 are end to end and place
In the Super Bass Loudspeaker Enclosure 1, it is flexibly connected between multiple sound columns 2 by second connecting mechanism for rotating 4, the sound column
2 and the Super Bass Loudspeaker Enclosure 1 pass through first bindiny mechanism 3 be flexibly connected.Multiple sound columns 2 are end to end and are placed on heavy low
On sound box with sound 1, occupied area is small, and the setting of the second connecting mechanism for rotating 4 can be according to need convenient for rotating freely between more piece sound column 2
Seek adjustment sound coverage area.
Second connecting mechanism for rotating 4 includes cover assembly 5 and base assembly 6, and the cover assembly 5 connects including sound column
It connects lid 51, thread column 52 and cathode and even draws elastic slice 53, the thread column 52 is fixedly connected with the sound column connection cover 51, the spiral shell
Tooth column 52 is logical core structure, and 52 inner wall of thread column is fixedly installed with elastic slice mounting base 54, and the cathode even draws elastic slice 53 to pacify
In the elastic slice mounting base 54, the elastic slice mounting base 54 is equipped with positioning pin mounting hole 541, in the elastic slice mounting base
The positioning pin mounting hole 541 is corresponded on 54 is fixed with positive positioning pin 55.
The base assembly 6 includes connection pedestal 61, connection gear 62, positive floating thimble 63 and cathode floating thimble
64, it is equipped with the connection through-hole 65 for connecting cover assembly 5 in the connection pedestal 61, the corresponding thread column 52 is equipped with spiral shell
Facing 66, the spiral tooth socket 66 are movably arranged on the connection through-hole 65, and the connection gear 62 is arranged in the spiral tooth socket
On 66,62 upper surface of connection gear is corresponded to above the spiral tooth socket 66 equipped with device protection shell 67, the anode floats
Thimble 63, cathode floating thimble 64 are movably arranged on the device protection shell 67.
The corresponding positive positioning pin 55 of the device protection shell 67, cathode even draw elastic slice 53 to be respectively equipped with the first thimble peace
Fill hole 671 and the second thimble mounting hole 672, corresponding first thimble mounting hole, the 671 activity peace of anode floating thimble 63
On the device protection shell 67, the corresponding second thimble mounting hole 672 of the cathode floating thimble 64 is movably arranged on
On the device protection shell 67.When positive floating thimble 63 and positive positioning pin 55 connect, cathode floating thimble 64 and cathode connect
When elastic slice 53 being drawn to connect, the two section sound columns 2 to connect pass through the positive floating thimble 63, positive positioning pin 55, cathode floating top
Needle 64, cathode even draw the transmission of the realization electric signal of elastic slice 53.
The first thimble mounting hole 671,672 inner wall of the second thimble mounting hole are respectively equipped with third card slot, the 4th card slot,
The third card slot is corresponded on the anode floating thimble 63 and is equipped with the first fixture block 631, is corresponded on the cathode floating thimble 64
4th card slot is equipped with the second fixture block 641, in corresponding to the third card slot, the first fixture block on the positive floating thimble 63
631 are cased with first pressure spring 632, in correspond to the 4th card slot on the cathode floating thimble 64, the second fixture block 641 is cased with
Second pressure spring 642.The setting of first pressure spring 632 and second pressure spring 642, convenient for by positive floating thimble 63,
Cathode floating thimble 64 pops up, and when sound column 2 rotates, by first pressure spring 632 and second pressure spring 642, keeps anode
Floating thimble 63, cathode floating thimble 64 even draw elastic slice 53 to contact with positive positioning pin 55, cathode respectively.
Resistance gauge 68 is equipped on the outside of the connection gear 62, the resistance gauge 68 includes tooth rest 681 and driven gear
682, the tooth rest 681 is fixedly connected with the connection pedestal 61, and the corresponding connection gear 62 of the driven gear 682 is living
It is dynamic to be mounted on the tooth rest 681, and the driven gear 682 and the connection gear 62 are intermeshed.Resistance gauge 68
Setting, when sound column 2 rotates, driven gear 682 is rotated along 62 outer ring of connection gear, to generate certain resistance, reduces sound
Shaking gap when column 2 rotates makes sound column 2 more have texture when rotating.
It is successively arranged baffle 691, third compression spring 692, gear from inside to outside in 62 outside of connection gear and buckles rail
Road 693, the 4th compression spring 694 and switch combination, it is solid that the baffle 691, gear buckle the equal and described connection pedestal 61 of track 693
Fixed connection buckles to correspond to the connection gear 62 on track 693 and be movably installed with gear and buckles 695 in the gear, and the gear is buckled
695 head ends are connected by the third compression spring 692 and the baffle 691, and the gear buckles 695 ends by the described 4th
Compression spring 694 is connected with the switch combination.
The switch combination includes the swich buckle 696 being movably arranged on the device protection shell 67,697 and of the first sliding block
It is movably arranged on the gear and buckles the second sliding block 698 on track 693, the 4th compression spring 694 and second sliding block
698 connections, first sliding block 697 are fixedly connected with the swich buckle 696, first sliding block 697 and second sliding block
698 are flexibly connected, and first sliding block 697 is equipped with the first inclined-plane, correspond to first inclined-plane on second sliding block 698 and set
There is the second inclined-plane.Moving switch button 696, swich buckle 696 drive the first sliding block 697 mobile, and the first sliding block 697 pushes the second sliding block
698, which buckle track 693 in gear, moves forward, and the second sliding block 698 pushes gear to buckle 695 and moves forward to locking by the 4th compression spring 694
Connection gear 62, gear buckle 695 setting, and locking connection gear 62, non-slip when screwing convenient for two section sound columns 2.
The sound column 2 and the Super Bass Loudspeaker Enclosure 1 are flexibly connected by first bindiny mechanism 3, the first connection machine
Structure 3 is identical as 4 structure of the second connecting mechanism for rotating.
A kind of application method of above-mentioned multi-angle rotary sound equipment, it is characterised in that: itself the following steps are included:
The cover assembly 5 of first bindiny mechanism 3 is fixed on 1 top of Super Bass Loudspeaker Enclosure, by the first bindiny mechanism by step 1
3 base assembly 6 is fixed on 2 bottom end of sound column connected with Super Bass Loudspeaker Enclosure 1；
The cover assembly 5 of second connecting mechanism for rotating 4 is fixed on the top of above-mentioned sound column 2 by step 2, by the second rotation
The base assembly 6 of bindiny mechanism 4 is fixed on the bottom end of another section sound column 2；
Step 3, moving switch combination, gear buckle 695 locking connection gears 62, the base assembly 6 of a section sound column 2 are led to
The corresponding thread column 52 of spiral tooth socket 66 is crossed to be mounted on the cover assembly 5 of another section sound column 2, rotate the two section sound columns 2 that are connected with
Spiral tooth socket 66 and thread column 52 are tightened, keeps sound column 2 described in two sections end to end；
Step 4, moving switch combination, gear buckle 695 stopping locking connection gears 62, rotate one section/more piece sound column 2
Direction adjusts sound coverage area.
When in use, the cover assembly 5 of the first bindiny mechanism 3 is first fixed on 1 top of Super Bass Loudspeaker Enclosure, by the first connection
The base assembly 6 of mechanism 3 is fixed on 2 bottom end of sound column connected with Super Bass Loudspeaker Enclosure 1, by the upper cover of the second connecting mechanism for rotating 4
Component 5 is fixed on the top of above-mentioned sound column 2, and the base assembly 6 of the second connecting mechanism for rotating 4 is fixed on another section sound column 2
Bottom end, moving switch button 696, swich buckle 696 drive the first sliding block 697 mobile, and the first sliding block 697 pushes the second sliding block 698 to exist
Gear buckles the Forward of track 693, and the second sliding block 698 pushes gear to buckle 695 and moves forward to locking tooth connection by the 4th compression spring 694
The base assembly 6 of one section sound column 2 is mounted on the upper cover group of another section sound column 2 by wheel 62 by the corresponding thread column 52 of spiral tooth socket 66
On part 5, two section sound columns 2 being connected are rotated to tighten spiral tooth socket 66 and thread column 52, first pressure spring 632 pushes anode floating
Dynamic thimble 63 and positive positioning pin 55 connect, and second pressure spring 642 pushes cathode floating thimble 64 and cathode even to draw elastic slice 53
It is flexibly connected, moving switch button 696, swich buckle 696 drives the first sliding block 697 to reset, and the first sliding block 697 pushes the second sliding block
698, which buckle track 693 in gear, moves back, and third compression spring 692 pushes gear to buckle 695 resets, and gear buckles 695 stoppings to tooth connection
The locking of wheel 62 rotates the direction of wherein a section or more piece sound column 2, adjusts sound coverage area.
Structure of the invention design is rationally ingenious, and the two section sound columns 2 to connect are positioned by the positive floating thimble 63, anode
Pin 55, cathode floating thimble 64, cathode connect the transmission for drawing elastic slice 53 to realize electric signal, and the setting of resistance gauge 68 revolves sound column 2
Turn more have texture, multiple sound columns 2 are end to end and are placed in Super Bass Loudspeaker Enclosure 1, and occupied area is small, the first bindiny mechanism 3
Setting, convenient for being rotated freely between more piece sound column 2, the setting of the second connecting mechanism for rotating 4, convenient for being connected in Super Bass Loudspeaker Enclosure 1
Sound column 2 rotate freely, sound coverage area can be adjusted according to demand.
The above described is only a preferred embodiment of the present invention, being not intended to limit the present invention in any form.Appoint
What those skilled in the art, without departing from the scope of the technical proposal of the invention, all using the skill of the disclosure above
Art means and technology contents make many possible changes and modifications to technical solution of the present invention, or be revised as equivalent variations etc.
Imitate embodiment.Therefore anything that does not depart from the technical scheme of the invention, made by shape according to the present invention, construction and principle etc.
Effect variation, should all be covered by protection scope of the present invention.
Claims (10)
1. a kind of multi-angle rotary sound equipment, it is characterised in that: it include Super Bass Loudspeaker Enclosure, multiple sound columns, the first bindiny mechanism and
Multiple second connecting mechanism for rotating, multiple sound columns are end to end and are placed in the Super Bass Loudspeaker Enclosure, multiple sounds
Intercolumniation is flexibly connected by second connecting mechanism for rotating, and the sound column and the Super Bass Loudspeaker Enclosure are connected by described first
Mechanism activity is fixedly connected.
2. multi-angle rotary sound equipment according to claim 1, it is characterised in that: second connecting mechanism for rotating includes upper
Cap assemblies and base assembly, the cover assembly include that sound column connection cover, thread column and cathode even draw elastic slice, the thread column and
The sound column connection cover is fixedly connected, and the thread column is logical core structure, and the thread column wall is fixedly installed with elastic slice installation
Seat, the cathode even draw elastic slice to be mounted in the elastic slice mounting base, and the elastic slice mounting base is equipped with positioning pin mounting hole, in
The positioning pin mounting hole is corresponded in the elastic slice mounting base is fixed with positive positioning pin.
3. multi-angle rotary sound equipment according to claim 2, it is characterised in that: the base assembly include connection pedestal,
Connection gear, positive floating thimble and cathode floating thimble are equipped with the company for connecting cover assembly in the connection pedestal
Hole is connected, the corresponding thread column is equipped with spiral tooth socket, and the spiral tooth socket is movably arranged on the connection through-hole, the tooth connection
Wheel is arranged on the spiral tooth socket, and the connection gear upper surface is corresponded to above the spiral tooth socket equipped with device protection shell, institute
State positive floating thimble, cathode floating thimble is movably arranged on the device protection shell.
4. multi-angle rotary sound equipment according to claim 3, it is characterised in that: the device protection shell corresponds to the anode
Positioning pin, cathode even draw elastic slice to be respectively equipped with the first thimble mounting hole and the second thimble mounting hole, the anode floating thimble pair
The first thimble mounting hole is answered to be movably arranged on the device protection shell, the cathode floating thimble corresponds to second top
Needle mounting hole is movably arranged on the device protection shell.
5. multi-angle rotary sound equipment according to claim 4, it is characterised in that: the first thimble mounting hole, the second top
Needle inner wall of the hole installing is respectively equipped with third card slot, the 4th card slot, corresponds to the third card slot on the anode floating thimble and is equipped with
First fixture block corresponds to the 4th card slot on the cathode floating thimble equipped with the second fixture block, on the positive floating thimble
The corresponding third card slot, the first fixture block are cased with first pressure spring, block in corresponding to the described 4th on the cathode floating thimble
Slot, the second fixture block are cased with second pressure spring.
6. multi-angle rotary sound equipment according to claim 4, it is characterised in that: be equipped with resistance on the outside of the connection gear
Device, the resistance gauge include tooth rest and driven gear, and the tooth rest is fixedly connected with the connection pedestal, the driven tooth
The corresponding connection gear of wheel is movably arranged on the tooth rest, and the driven gear and the connection gear are mutually nibbled
It closes.
7. multi-angle rotary sound equipment according to claim 3, it is characterised in that: on the outside of the connection gear from inside to outside
It is successively arranged baffle, third compression spring, gear and buckles track, the 4th compression spring and switch combination, the baffle, gear buckle rail
Road is fixedly connected with the connection pedestal, is buckled in the gear and is corresponded to the connection gear on track and be movably installed with gear
Button, the gear buckles head end and connects by the third compression spring with the baffle, and the gear buckles end and passes through described the
Four compression springs are connected with the switch combination.
8. multi-angle rotary sound equipment according to claim 7, it is characterised in that: the switch combination includes being movably arranged on
It swich buckle, the first sliding block on the device protection shell and is movably arranged on the gear and buckles the second sliding block on track, it is described
4th compression spring is connected with second sliding block, and first sliding block is fixedly connected with the swich buckle, first sliding block
It is flexibly connected with second sliding block, first sliding block is equipped with the first inclined-plane, corresponds to described first on second sliding block
Inclined-plane is equipped with the second inclined-plane.
9. multi-angle rotary sound equipment according to claim 2, it is characterised in that: the sound column and the Super Bass Loudspeaker Enclosure are logical
It crosses first bindiny mechanism to be flexibly connected, first bindiny mechanism is identical as the second connecting mechanism for rotating structure.
10. a kind of application method of the multi-angle rotary sound equipment as described in claim 1-9 any one, it is characterised in that: it is wrapped
Include following steps:
The cover assembly of first bindiny mechanism is fixed on Super Bass Loudspeaker Enclosure top by step 1, by the pedestal of the first bindiny mechanism
Component is fixed on the sound column bottom end connected with Super Bass Loudspeaker Enclosure；
The cover assembly of second connecting mechanism for rotating is fixed on the top of above-mentioned sound column by step 2, rotates connection machine for second
The base assembly of structure is fixed on the bottom end of another section sound column；
Step 3, moving switch combination, Hasp lock with gear stop connection gear, and the base assembly of a section sound column is corresponding by spiral tooth socket
Thread column is mounted on the cover assembly of another section sound column, rotates two section sound columns being connected to tighten spiral tooth socket and thread column,
Keep sound column described in two sections end to end；
Step 4, moving switch combination, gear, which is buckled, stops locking connection gear, rotates one section/more piece sound column direction, adjustment sound
Sound coverage area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811035120.XA CN109218900B (en) | 2018-09-06 | 2018-09-06 | Multi-angle rotary sound box and use method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811035120.XA CN109218900B (en) | 2018-09-06 | 2018-09-06 | Multi-angle rotary sound box and use method thereof |
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| CN109218900A true CN109218900A (en) | 2019-01-15 |
| CN109218900B CN109218900B (en) | 2023-08-15 |
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