CN112040374B - Hidden type phase-reversing tube strip-shaped sound box structure - Google Patents
Hidden type phase-reversing tube strip-shaped sound box structure Download PDFInfo
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- CN112040374B CN112040374B CN202010951256.6A CN202010951256A CN112040374B CN 112040374 B CN112040374 B CN 112040374B CN 202010951256 A CN202010951256 A CN 202010951256A CN 112040374 B CN112040374 B CN 112040374B
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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
- H04R5/00—Stereophonic arrangements
- H04R5/02—Spatial or constructional arrangements of loudspeakers
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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
- H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
Abstract
The invention discloses a hidden type inverter tube bar-shaped sound box structure which comprises a bar-shaped sound box, wherein an inverter tube is arranged at the middle mounting end of the bar-shaped sound box, the outer walls of the left side and the right side of the inverter tube are fixedly connected with first sliding blocks, and the first sliding blocks are connected with first sliding grooves in a sliding mode. This hidden paraphase pipe bar audio amplifier structure, the first slider that the paraphase pipe passes through both sides can be quick install in the second spout of bar audio amplifier both sides, the equipment degree of difficulty of paraphase pipe has been reduced, the paraphase pipe of having solved current bar audio amplifier is not convenient for install, the problem of increasing the degree of difficulty for the equipment operation, the plectane is installed in the second spout of six fixture blocks in the paraphase pipe through six second sliders, and the filter screen prevents that external dust from getting into in the bar audio amplifier through the paraphase pipe, protect the tone quality of bar audio amplifier, current bar audio amplifier has been solved and has been used up the back, inside external dust can get into the audio amplifier through the paraphase pipe, thereby influence the problem of audio amplifier tone quality.
Description
Technical Field
The invention relates to the technical field of strip-shaped sound boxes, in particular to a hidden type phase-reversing tube strip-shaped sound box structure.
Background
Along with scientific development and social progress, the manufacture of sound boxes adds various colors to our lives, a bar sound box (English: Soundbar) is a sound box with stereo effect and is usually placed above or below a screen, and most of the sound boxes are designed in a long strip shape based on the consideration of acoustics, so that the sound box is famous, but the inverter tube of the existing bar sound box is inconvenient to install and increases difficulty for assembly operation, and meanwhile, the problem that external dust enters the interior of the sound box through the inverter tube after the existing bar sound box is used up is solved, so that the sound quality of the sound box is influenced.
Disclosure of Invention
The invention aims to provide a hidden type inverter tube bar-shaped sound box structure to solve the problems that the inverter tube of the existing bar-shaped sound box proposed in the background technology is inconvenient to install and increases difficulty for assembly operation.
In order to achieve the purpose, the invention provides the following technical scheme: a hidden type phase reversal pipe bar-shaped sound box structure comprises a bar-shaped sound box, wherein a phase reversal pipe is arranged at the middle mounting end of the bar-shaped sound box, the outer walls of the left side and the right side of the phase reversal pipe are fixedly connected with first sliding blocks, the first sliding blocks are connected with first sliding grooves in a sliding mode, the first sliding grooves are formed in the inner walls of the middle of the left side and the right side of the bar-shaped sound box, and a dustproof mechanism is arranged at the front end of the middle of the phase reversal pipe;
the dustproof mechanism comprises a circular plate, a filter screen, a second sliding block, a second sliding groove, a clamping block and a rubber pad;
the centre of plectane is equipped with the filter screen, the middle inner wall of plectane and the outer wall fixed connection of filter screen, be equipped with the second slider in the middle of the top of plectane, second slider and second spout slip joint, the inner wall in the middle of the below at the fixture block is seted up to the second spout, the top fixed connection of fixture block is at the middle inner wall in the middle of the top of paraphase pipe, the outside of plectane is equipped with six rubber pads, the outer wall of plectane all with the inboard fixed connection of six rubber pads, six the outer wall of rubber pad all laminates mutually with the middle internal surface of paraphase pipe.
Preferably, the second sliding block and the second sliding groove form a sliding structure.
Preferably, the second sliding block, the second sliding groove, the clamping block and the rubber pad are all installed on the outer wall of the circular plate in an annular mode.
Preferably, the thickness of the filter screen is 0.5-1 cm.
Preferably, a buffer mechanism is arranged below the bar-shaped sound box;
the buffer mechanism comprises a first clamping plate, a rubber ball, a second clamping plate, a rubber block, a curved bar, an inclined bar, a roller, a third chute, a first compression spring and a curved plate;
the top end of the first clamping plate is attached to the left bottom end of the bar-shaped sound box, a rubber ball is arranged below the first clamping plate, the middle inner wall below the first clamping plate is fixedly connected with the upper outer wall of the rubber ball, a second clamping plate is arranged below the rubber ball, the bottom end of the rubber ball is fixedly connected with the middle inner wall above the second clamping plate, a rubber block is arranged on the left side of the second clamping plate, the right end of the rubber block is attached to the left bottom end of the bar-shaped sound box, a curved bar is arranged at the bottom end of the rubber block, the bottom end of the rubber block is fixedly connected with the middle of the top end of the curved bar, an inclined rod is arranged on the left side below the curved bar, the inclined rod is rotatably connected with the left side below the curved bar through a pin shaft, a roller is arranged below the inclined rod, the roller is rotatably connected with the roller through a pin shaft, a third chute is arranged below the roller, and the outer wall below the roller is attached to the inner surface of the third chute, the third spout is seted up at the left side top inner wall of bent plate, the left side bottom inner wall rigid coupling of bent plate has the second splint, two the middle front end of down tube respectively with first compression spring's left and right sides rear end fixed connection.
Preferably, the left side and the right side above the bent plate are both provided with a fixing mechanism;
the fixing mechanism comprises a cross rod, a groove, a top block, a vertical plate, a second compression spring, a fixing ball and a handle;
offer flutedly in the middle of the left side of horizontal pole, the left side internal surface of recess laminates with the front end outer wall of kicking block mutually, the rear end fixed connection of kicking block is at the middle front end in the top of riser, the bottom rigid coupling of riser is on the left side top of bent plate, the right side internal surface rigid coupling of recess has second compression spring, second compression spring's left end rigid coupling is at the right-hand member of kicking block, the right-hand member rigid coupling of horizontal pole has the fixed ball, the right-hand member of fixed ball is laminated with the below left end of bar audio amplifier, the rigid coupling has the handle in the middle of the right side front end of horizontal pole.
Compared with the prior art, the invention has the beneficial effects that: compared with the prior art, the hidden type inverter tube strip-shaped sound box structure has the following advantages:
through the cooperation between bar audio amplifier, paraphase pipe, first slider and the first spout, the paraphase pipe can be quick through the first slider of both sides install in the second spout of bar audio amplifier both sides, has reduced the equipment degree of difficulty of paraphase pipe, has solved the paraphase pipe of current bar audio amplifier and has not been convenient for install, gives the problem that the equipment operation increases the degree of difficulty.
Through bar audio amplifier, the looks inverting pipe, the plectane, the filter screen, the second slider, the second spout, the cooperation between fixture block and the rubber pad, the plectane is installed in the second spout of six fixture blocks in the looks inverting pipe through six second sliders, and in the filter screen prevented that external dust from getting into bar audio amplifier through the looks inverting pipe, protect the tone quality of bar audio amplifier, solved current bar audio amplifier after using, inside external dust can get into the audio amplifier through the looks inverting pipe, thereby influence the problem of audio amplifier tone quality.
Through bar audio amplifier, first splint, the rubber ball, the second splint, the rubber block, the curved bar, the down tube spring is given to the down tube spring through the rubber block to the down tube spring, make two down tubes drive the third spout inside and outside slip of gyro wheel on the curved plate respectively, two down tubes expand to the outside and make first compression spring tensile, otherwise the shaking force that can offset bar audio amplifier production through the elasticity of first spring, protect bar audio amplifier internals, current bar audio amplifier has been solved, because long-time use receives the power that vibrates of self, can make the problem that internals damaged.
Through bar audio amplifier, the bent plate, the horizontal pole, a groove, the kicking block, the riser, second compression spring, cooperation between fixed ball and the handle, it drives the horizontal pole and moves to the outside, the outer wall of the recess at the kicking block of riser front end on the horizontal pole moves to the outside, the recess drives second compression spring and moves to the outside and makes second compression spring top compress on the kicking block, otherwise elasticity through second compression spring can make the horizontal pole reset, the horizontal pole drives fixed ball and resets and make bar audio amplifier fix on the bent plate, avoid bar audio amplifier to empty wearing and tearing, current bar audio amplifier when using has been solved, can not fix, make the audio amplifier can empty the problem of wearing and tearing.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the inverter tube, the first slider and the first runner of FIG. 1;
FIG. 3 is a schematic structural view of the circular plate, the second slider and the second sliding groove in FIG. 1;
FIG. 4 is a schematic structural view of the cross bar, the groove and the top block of FIG. 1;
FIG. 5 is a schematic structural view of the sloping plate, the rollers and the third sliding chute in FIG. 1;
fig. 6 is a left side view of fig. 1.
In the figure: 1. bar loudspeaker, 2, inverter tube, 3, first slider, 4, dustproof mechanism, 401, circular plate, 402, filter screen, 403, second slider, 404, second runner, 405, fixture block, 406, rubber pad, 5, buffer mechanism, 501, first splint, 502, rubber ball, 503, second splint, 504, rubber block, 505, curved bar, 506, sloping plate, 507, roller, 508, third runner, 509, first compression spring, 510, curved plate, 6, fixing mechanism, 601, cross bar, 602, groove, 603, top block, 604, riser, 605, second compression spring, 606, fixing ball, 607, handle, 7, first runner.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the present invention provides a technical solution:
example 1
A hidden type bar-shaped sound box structure with an inverter tube comprises a bar-shaped sound box 1, wherein an inverter tube 2 is arranged at the middle mounting end of the bar-shaped sound box 1, the outer walls of the left side and the right side of the inverter tube 2 are fixedly connected with first sliding blocks 3, the first sliding blocks 3 are connected with first sliding grooves 7 in a sliding mode, the first sliding grooves 7 are arranged on the middle inner walls of the left side and the right side of the bar-shaped sound box 1, the inverter tube 2 is arranged in second sliding grooves 7 on the two sides of the bar-shaped sound box 1 through the first sliding blocks 3 on the two sides, the first sliding blocks 3 are made of hard rubber materials, the sealing performance is enhanced, a dustproof mechanism 4 is arranged at the front middle end of the inverter tube 2, the dustproof mechanism 4 comprises a circular plate 401, a filter screen 402, a second sliding block, a second sliding groove 404, a clamping block 405 and a rubber pad 406, the filter screen 402 is arranged in the middle of the circular plate 401, the middle inner wall of the filter screen 402 is fixedly connected with the outer wall of the circular plate 401, a second sliding block 403 is arranged in the middle of the top end of the circular plate 401, the second slide block 403 is slidably engaged with the second slide groove 404, the second slide groove 404 is provided on the lower middle inner wall of the latch 405, the top end of the latch 405 is fixedly connected to the upper middle inner wall of the inverter tube 2, the circular plate 401 is installed in the second slide groove 404 of the six latches 405 in the inverter tube 2 through the six second slide blocks 403, the second slide block 403 is made of hard rubber material to enhance the sealing performance, and the filter screen 402 prevents external dust from entering the bar-shaped sound box 1 through the inverter tube 2, the filter screen 402 is made of stainless steel mesh with through holes distributed on the surface, six rubber pads 406 are provided on the outer side of the circular plate 401, the outer wall of the circular plate 401 is fixedly connected with the inner sides of the six rubber pads 406, the outer walls of the six rubber pads 406 are attached to the middle inner surface of the inverter tube 2, the six rubber pads 406 seal the gap between the circular plate 401 and the inverter tube 2, the second slide block 403 and the second slide groove 404 form a sliding structure, the second sliding block 403 slides back and forth in the second sliding groove 404, the second sliding block 403, the second sliding groove 404, the clamping block 405 and the rubber pad 406 are all annularly arranged on the outer wall of the circular plate 401, so that the filter screen 402 on the circular plate 401 is quickly arranged, the sealing performance is ensured, the thickness of the filter screen 402 is 0.5-1cm, and the dust filtering effect is enhanced.
Example 2
As an optional case, referring to fig. 1, 4, 5 and 6, in the concealed type inverter tube sound box structure, a buffer mechanism 5 is installed below a sound box 1, the buffer mechanism 5 includes a first clamp plate 501, a rubber ball 502, a second clamp plate 503, a rubber block 504, a curved rod 505, an inclined rod 506, a roller 507, a third sliding groove 508, a first compression spring 509 and a curved plate 510, the top end of the first clamp plate 501 is attached to the bottom end of the left side of the sound box 1, the three first clamp plates 501 support the sound box 1, the rubber ball 502 is installed below the first clamp plate 501, the lower middle inner wall of the first clamp plate 501 is fixedly connected to the upper outer wall of the rubber ball 502, the second clamp plate 503 is installed below the rubber ball 502, the bottom end of the rubber ball 502 is fixedly connected to the upper middle inner wall of the second clamp plate 503, the vibration force generated when the sound box 1 works can be offset by the elasticity of the three rubber balls 502, the left side of the second clamping plate 503 is provided with a rubber block 504, the right end of the rubber block 504 is jointed with the left bottom end of the bar-shaped sound box 1, the bottom end of the rubber block 504 is provided with a curved bar 505, the bottom end of the rubber block 504 is fixedly connected with the middle of the top end of the curved bar 505, the rubber blocks 504 on the curved bar 505 at the two sides support the bar-shaped sound box 1, the left side below the curved bar 505 is provided with an inclined bar 506, the inclined bar 506 is rotatably connected with the left side below the curved bar 505 through a pin shaft, a roller 507 is arranged below the inclined bar 506, the lower part of the roller 506 is rotatably connected with the roller 507 through a pin shaft, a third chute 508 is arranged below the roller 507, the outer wall below the roller 507 is jointed with the inner surface of the third chute 508, the third chute 508 is arranged at the upper inner wall at the left side of the curved bar 510, the bar-shaped sound box 1 applies downward force to the curved bar 505 through the rubber block 504, so that the two inclined bars 506 drive the roller 507 to slide inside and outside the third chute 508 on the curved bar 510, the inner wall of the left bottom end of the curved plate 510 is fixedly connected with a second clamping plate 503, the front ends of the middle parts of the two inclined rods 506 are fixedly connected with the rear ends of the left side and the right side of the first compression spring 509 respectively, the two inclined rods 506 expand outwards to enable the first compression spring 509 to stretch, otherwise, the vibration force generated by the bar-shaped sound box 1 can be offset through the elasticity of the first spring 509.
The scheme in this embodiment can be selectively combined with the scheme in other embodiments.
Example 3
As an optional case, referring to fig. 1 and 4, in the hidden type inverter tube strip speaker structure, the fixing mechanisms 6 are installed on both left and right sides above the curved plate 510, the fixing mechanisms 6 include a cross bar 601, a groove 602, a top block 603, a vertical plate 604, a second compression spring 605, a fixing ball 606 and a handle 607, the groove 602 is opened in the middle of the left side of the cross bar 601, the left inner surface of the groove 602 is attached to the outer wall of the front end of the top block 603, the rear end of the top block 603 is fixedly connected to the front end of the upper middle of the vertical plate 604, the groove 602 on the cross bar 601 moves outwards on the outer wall of the top block 603 at the front end of the vertical plate 604, the bottom end of the vertical plate 604 is fixedly connected to the top end of the left side of the curved plate 510, the right inner surface of the groove 602 is fixedly connected to the second compression spring 605, the left end of the second compression spring 605 is fixedly connected to the right end of the top block 603, the groove 602 drives the second compression spring 605 to move outwards to make the second compression spring 605 abut against the top block 603, on the contrary, the cross rod 601 can be reset through the elasticity of the second compression spring 605, the right end of the cross rod 601 is fixedly connected with the fixing ball 606, the right end of the fixing ball 606 is attached to the left end of the lower portion of the strip-shaped sound box 1, the cross rod 601 drives the fixing ball 606 to reset to fix the strip-shaped sound box 1, the fixing ball 606 is made of rubber, the handle 607 is fixedly connected to the middle of the front end of the right side of the cross rod 601, and the handle 607 is dragged to drive the cross rod 607 to move outwards.
The scheme in this embodiment can be selectively combined with the scheme in other embodiments.
The working principle of the invention is as follows:
when the hidden type inverter tube bar-shaped sound box structure is used, firstly, the inverter tube 2 can be quickly installed in the second sliding grooves 7 at two sides of the bar-shaped sound box 1 through the first sliding blocks 3 at two sides manually, the circular plate 401 is installed in the second sliding groove 404 of six clamping blocks 405 in the inverter tube 2 through the six second sliding blocks 403, the filter screen 402 prevents external dust from entering the bar-shaped sound box 1 through the inverter tube 2, the bar-shaped sound box 1 is manually placed on the three first clamping blocks 501 and the rubber blocks 504 at two sides, the handle 607 is dragged to drive the cross rod 607 to move outwards, the groove 602 on the cross rod 601 moves outwards on the outer wall of the top block 603 at the front end of the vertical plate 604, the groove 602 drives the second compression spring 605 to move outwards to press the second compression spring 605 on the top block 603, otherwise, the cross rod 601 can be reset through the elasticity of the second compression spring 605, the cross rod 601 drives the fixing ball 606 to reset to fix the bar-shaped sound box 1 on the curved plate 510, the vibration force generated by the bar type sound box 1 during operation can be offset by the elasticity of the three rubber balls 502, meanwhile, the bar type sound box 1 gives the downward force to the curved bar 505 through the rubber block 504, so that the two inclined bars 506 respectively drive the rollers 507 to slide inside and outside the third sliding grooves 508 on the curved plate 510, the two inclined bars 506 expand outwards to stretch the first compression spring 509, and otherwise, the vibration force generated by the bar type sound box 1 can be offset by the elasticity of the first spring 509.
In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
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 (4)
1. The utility model provides a hidden paraphase pipe bar audio amplifier structure, includes bar audio amplifier (1), its characterized in that: the middle mounting end of the bar-shaped sound box (1) is provided with an inverter tube (2), the outer walls of the left side and the right side of the inverter tube (2) are fixedly connected with first sliding blocks (3), the first sliding blocks (3) are connected with first sliding grooves (7) in a sliding mode, the first sliding grooves (7) are formed in the inner walls of the middle of the left side and the right side of the bar-shaped sound box (1), and the front end of the middle of the inverter tube (2) is provided with a dustproof mechanism (4); the dustproof mechanism (4) comprises a circular plate (401), a filter screen (402), a second sliding block (403), a second sliding groove (404), a clamping block (405) and a rubber pad (406); a filter screen (402) is arranged in the middle of the circular plate (401), the middle inner wall of the circular plate (401) is fixedly connected with the outer wall of the filter screen (402), a second sliding block (403) is arranged in the middle of the top end of the circular plate (401), the second sliding block (403) is in sliding clamping connection with a second sliding groove (404), the second sliding groove (404) is arranged on the middle inner wall below the clamping block (405), the top end of the clamping block (405) is fixedly connected with the middle inner wall above the inverter tube (2), six rubber pads (406) are arranged on the outer side of the circular plate (401), the outer wall of the circular plate (401) is fixedly connected with the inner sides of the six rubber pads (406), the outer walls of the six rubber pads (406) are attached to the middle inner surface of the inverter tube (2), and a buffer mechanism (5) is arranged below the bar-shaped sound box (1); the buffer mechanism (5) comprises a first clamping plate (501), a rubber ball (502), a second clamping plate (503), a rubber block (504), a curved rod (505), an inclined rod (506), a roller (507), a third sliding groove (508), a first compression spring (509) and a curved plate (510); the top end of the first clamping plate (501) is attached to the left side bottom end of the bar-shaped sound box (1), a rubber ball (502) is arranged below the first clamping plate (501), the middle lower inner wall of the first clamping plate (501) is fixedly connected with the upper outer wall of the rubber ball (502), a second clamping plate (503) is arranged below the rubber ball (502), the bottom end of the rubber ball (502) is fixedly connected with the middle upper inner wall of the second clamping plate (503), a rubber block (504) is arranged on the left side of the second clamping plate (503), the right end of the rubber block (504) is attached to the left side bottom end of the bar-shaped sound box (1), a curved rod (505) is arranged at the bottom end of the rubber block (504), the bottom end of the rubber block (504) is fixedly connected with the middle top end of the curved rod (505), an inclined rod (506) is arranged on the left side of the lower portion of the curved rod (505), and the inclined rod (506) is rotatably connected with the left side of the curved rod (505) through a pin shaft, a roller (507) is arranged below the inclined rod (506), the lower part of the inclined rod (506) is rotatably connected with the roller (507) through a pin shaft, a third sliding groove (508) is arranged below the roller (507), the outer wall of the lower part of the roller (507) is attached to the inner surface of the third sliding groove (508), the third sliding groove (508) is formed in the inner wall of the upper left side of the curved plate (510), a second clamping plate (503) is fixedly connected to the inner wall of the bottom end of the left side of the curved plate (510), and the front ends of the middles of the two inclined rods (506) are fixedly connected with the rear ends of the left side and the right side of the first compression spring (509) respectively; fixing mechanisms (6) are mounted on the left side and the right side above the bent plate (510); the fixing mechanism (6) comprises a cross rod (601), a groove (602), a top block (603), a vertical plate (604), a second compression spring (605), a fixing ball (606) and a handle (607); offer recess (602) in the middle of the left side of horizontal pole (601), the left side internal surface of recess (602) is laminated with the front end outer wall of kicking block (603), the rear end fixed connection of kicking block (603) is at the middle front end of the top of riser (604), the bottom rigid coupling of riser (604) is on the left side top of bent plate (510), the right side internal surface rigid coupling of recess (602) has second compression spring (605), the left end rigid coupling of second compression spring (605) is at the right-hand member of kicking block (603), the right-hand member rigid coupling of horizontal pole (601) has fixed ball (606), the right-hand member of fixed ball (606) is laminated with the below left end of bar audio amplifier (1), the rigid coupling has handle (607) in the middle of the right side front end of horizontal pole (601).
2. The structure of a hidden inverter tube soundbox according to claim 1, characterised in that: the second sliding block (403) and the second sliding groove (404) form a sliding structure.
3. The structure of a hidden inverter tube soundbox according to claim 1, characterised in that: the second sliding block (403), the second sliding groove (404), the clamping block (405) and the rubber pad (406) are all annularly arranged on the outer wall of the circular plate (401).
4. The structure of a hidden inverter tube soundbox according to claim 1, characterised in that: the thickness of the filter screen (402) is 0.5-1 cm.
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|---|---|---|---|
| CN202010951256.6A CN112040374B (en) | 2020-09-11 | 2020-09-11 | Hidden type phase-reversing tube strip-shaped sound box structure |
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| CN202010951256.6A CN112040374B (en) | 2020-09-11 | 2020-09-11 | Hidden type phase-reversing tube strip-shaped sound box structure |
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| CN112040374B true CN112040374B (en) | 2021-10-22 |
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