CN114095813A - Wall-mounted loudspeaker embedded part for railway - Google Patents
Wall-mounted loudspeaker embedded part for railway Download PDFInfo
- Publication number
- CN114095813A CN114095813A CN202111256272.4A CN202111256272A CN114095813A CN 114095813 A CN114095813 A CN 114095813A CN 202111256272 A CN202111256272 A CN 202111256272A CN 114095813 A CN114095813 A CN 114095813A
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- China
- Prior art keywords
- plate
- assembled
- embedded part
- part shell
- railway
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/08—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal
- F16F15/085—Use of both rubber and metal springs
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
- H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Abstract
The invention discloses a wall-mounted loudspeaker embedded part for a railway, which comprises an embedded part shell, wherein a transmission chamber is formed in the right side of the embedded part shell, a threaded rod is assembled on the upper side of the inner side wall of the embedded part shell, a sliding block is screwed on the threaded rod, a guide rod is transversely inserted into the sliding block, two ends of the guide rod are assembled on the side wall of the embedded part shell, the right end of the threaded rod is inserted into the transmission chamber, a first helical gear is assembled at the right end of the threaded rod, a second helical gear is meshed at the lower end of the first helical gear, a rotating shaft is assembled in the middle of the second helical gear, and the rotating shaft is longitudinally assembled in the transmission chamber; splint in the scheme can move left through the threaded rod drive, and the cooperation ends the clamp plate and presss from both sides the speaker tightly, and fixed mode is simple and convenient, can adapt to the speaker of different width moreover, ends clamp plate and splint and can also increase the contact surface with the speaker through second expansion plate and first expansion plate extension, can adapt to the speaker of different length, and application range is wider.
Description
Technical Field
The invention belongs to the technical field of railway accessories, and particularly relates to a wall-mounted loudspeaker embedded part for a railway.
Background
The built-in fitting (prefabricated embedded part) is the component of preinstallation (burying) in hidden engineering, is exactly the structure accessory of settling when the structure is pour for overlap joint when building superstructure to do benefit to the installation of external engineering equipment basis fixed, the built-in fitting is made by metal mostly, for example: reinforcing bar or cast iron, also usable wood, nonmetal rigid material such as plastics, but the current wall-hanging speaker built-in fitting that is used for the railway, most be the inside at the wall for the snap-on, then rethread buckle installation speaker, damage when the speaker and need change, the model size of speaker changes, and it can be very troublesome to install when unable and buckle match mutually.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the prior art, provides a wall-mounted loudspeaker embedded part for a railway, and adopts the following basic concept in the technical scheme for solving the technical problem:
a wall-mounted loudspeaker embedded part for a railway comprises an embedded part shell, wherein a transmission chamber is formed in the right side of the embedded part shell, a threaded rod is assembled on the upper side of the inner side wall of the embedded part shell, a sliding block is screwed on the threaded rod, a guide rod is transversely inserted into the sliding block, two ends of the guide rod are assembled on the side wall of the embedded part shell, the right end of the threaded rod is inserted into the transmission chamber, a first helical gear is assembled at the right end of the threaded rod, a second helical gear is meshed with the lower end of the first helical gear, a rotating shaft is assembled in the middle of the second helical gear, the rotating shaft is longitudinally assembled in the transmission chamber, and a curved rod is assembled at the lower end of the rotating shaft;
the improved structure of the embedded part is characterized in that the lower end of the sliding block is assembled with a clamping plate, a rectangular hole is formed in the middle of the lower end of the embedded part shell, the clamping plate is assembled in the rectangular hole in a sliding mode, a first connecting plate is assembled at the lower end of the clamping plate, a first clamping plate is assembled at the lower end of the first connecting plate, a first expansion plate is sleeved on the outer side of the first clamping plate, a spring is evenly assembled on the left side of the first expansion plate, a first rubber plate is assembled on the left side of the spring, a stop plate is assembled at the left end of the lower side of the embedded part shell, a second connecting plate is assembled at the lower end of the stop plate, a second clamping plate is assembled at the lower end of the second connecting plate, and a second expansion plate is sleeved on the outer side of the second clamping plate.
Further, the spring comprises a spring body, the right end of the spring body is assembled on the first expansion plate, the left end of the spring body is assembled on the rubber plate, a spring protection sleeve is sleeved on the outer side of the spring body, an anti-corrosion layer is arranged on the surface of the spring body, anti-skid lines are arranged on the surface of the anti-corrosion layer, the inner wall of the rubber protection sleeve abuts against the anti-skid lines, and a wear-resistant layer is arranged on the surface of the rubber protection sleeve.
Further, the two sides of the lower end of the sliding block are provided with reinforcing ribs, and the lower ends of the reinforcing ribs are assembled on the two sides of the clamping plate.
Furthermore, the antiskid plate is pasted on the right side of the second expansion plate, the second rubber plate is pasted on the part, exposed out of the outer side of the embedded part shell, of the left side of the clamping plate, and the third rubber plate is pasted on the right side of the pressure stop plate.
Further, the embedded part shell is provided with a first reinforcing plate on the left side of the pressure stop plate, and the lower end of the right side of the clamping plate is provided with a second reinforcing plate.
Furthermore, the lower end of the curved bar is connected with a bolt in a threaded manner, the upper end of the bolt penetrates through the crank, the lower end of the transmission chamber is circular and is provided with a cylindrical clamping groove, and the upper end of the bolt is clamped in the clamping groove.
After the technical scheme is adopted, compared with the prior art, the invention has the following beneficial effects.
(1) This device is provided with threaded rod, guide bar, slider, splint, ends clamp plate, first helical gear, second helical gear, pivot and curved bar, can drive the threaded rod rotation through rotating the curved bar, then drive splint move left with the tight assembly of speaker clamp between splint and ending the clamp plate, can adapt to the speaker of different width, dismouting mode is simple and convenient, accommodation is wider.
(2) This device is provided with first connecting plate, second connecting plate, first cardboard, second cardboard, first expansion plate, second expansion plate, can suitably prolong splint and end the contact surface of clamp plate and speaker according to speaker length, makes this device more stable with the centre gripping of speaker, and application scope is wider.
This device is made at first expansion plate and is equipped with spring and rubber slab, can provide the buffering for speaker and first expansion plate, avoids crushing the speaker shell when pressing from both sides tight assembly.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention to its proper form. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic sectional view of a top view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
fig. 3 is a schematic cross-sectional view of the spring of the present invention.
In the figure: 1 slider, 2 threaded rods, 3 guide bars, 4 strengthening ribs, 5 embedded part shells, 6 clamping plates, 7 rectangular holes, 8 third rubber plates, 9 pressure-stopping plates, 10 first reinforcing plates, 11 second connecting plates, 12 second clamping plates, 13 second expansion plates, 14 antiskid plates, 15 second rubber plates, 16 first connecting plates, 17 first rubber plates, 18 springs, 181 wear-resistant layers, 182 rubber protective sleeves, 183 antiskid patterns, 184 spring main bodies, 185 anticorrosion layers, 19 first expansion plates, 20 first clamping plates, 21 transmission chambers, 22 rotating shafts, 23 second bevel gears, 24 first bevel gears, 25 cylindrical clamping grooves, 26 bolts, 27 curved bars and 28 second reinforcing plates.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1 to 3, the wall-mounted speaker embedded part for a railway according to the present embodiment includes an embedded part housing 5, a transmission chamber 21 is provided on the right side of the embedded part housing 5, a threaded rod 2 is assembled on the upper side of the inner side wall of the embedded part housing 5, a slider 1 is screwed on the threaded rod 2, a guide rod 3 is transversely inserted into the slider 1, two ends of the guide rod 3 are assembled on the side wall of the embedded part housing 5, the right end of the threaded rod 2 is inserted into the transmission chamber 21, the right end of the threaded rod 2 is assembled with a first helical gear 24, the lower end of the first helical gear 24 is engaged with a second helical gear 2, a rotating shaft 22 is assembled in the middle of the second helical gear 23, the rotating shaft 22 is longitudinally assembled in the transmission chamber 21, and the lower end of the rotating shaft 22 is assembled with a curved rod 27.
1 lower extreme of slider is equipped with splint 6, and 1 lower extreme both sides of slider are equipped with strengthening rib 4, and 4 lower extremes of strengthening rib assemble in 6 both sides of splint, and the fixed strength of splint 6 on slider 1 can be strengthened to strengthening rib 4. Rectangular hole 7 has been seted up in the middle of the 5 lower extremes of built-in fitting shell, 6 sliding assembly of splint are in rectangular hole 7, 6 lower extremes of splint are equipped with first connecting plate 16, 16 lower extremes of first connecting plate are equipped with first cardboard 20, first expansion plate 19 has been cup jointed in the first cardboard 20 outside, 19 left sides of first expansion plate evenly are equipped with spring 18, 18 left sides of spring are equipped with first rubber slab 17, 5 downside left ends of built-in fitting shell are equipped with and end clamp plate 9, end clamp plate 9 lower extreme is equipped with second connecting plate 11, 11 lower extremes of second connecting plate are equipped with second cardboard 12, second expansion plate 13 has been cup jointed in the 12 outsides of second cardboard.
The spring 18 comprises a spring body 184, the right end of the spring body 184 is assembled on the first expansion plate 19, the left end of the spring body 184 is assembled on the rubber plate 17, a spring protection sleeve 182 is sleeved on the outer side of the spring body 184, an anti-corrosion layer 185 is arranged on the surface of the spring body 184, anti-skid lines 183 are arranged on the surface of the anti-corrosion layer 185, the inner wall of the rubber protection sleeve 182 abuts against the anti-skid lines 183, and a wear-resistant layer 181 is arranged on the surface of the rubber protection sleeve 182.
The spring 18 is often corroded by surrounding media in the processes of manufacturing, storing, using and the like, because the spring 18 plays a role by elasticity in work, the elasticity can be changed and loses functions after the spring 18 is corroded, the spring main body 184 is protected by the rubber protection and the corrosion prevention layer 185, and meanwhile, the rubber protection sleeve 182 achieves the purpose of protecting the corrosion prevention layer 185, so that the spring main body 184 has a corrosion prevention function, and the influence of corrosion on the use of the spring 18 is avoided.
The right side of the second expansion plate 13 is pasted with an antiskid plate 14, the part of the left side of the clamping plate 6 exposed out of the embedded part shell 5 is pasted with a second rubber plate 15, and the right side of the pressure stop plate 9 is pasted with a third rubber plate 8. The second rubber plate 15 cooperates with the third rubber plate 8 to provide certain buffering for the loudspeaker, so that the loudspeaker shell is prevented from being crushed, the antiskid plate 14 cooperates with the first rubber plate 17 to provide certain buffering, the friction force between the second expansion plate 13 and the loudspeaker shell is increased while the loudspeaker shell is prevented from being crushed, and the loudspeaker slides down.
The embedment housing 5 is fitted with a first reinforcing plate 10 on the left side of the pressure stop plate 9, and a second reinforcing plate 28 is fitted on the lower end of the right side of the clamp plate 6. The first reinforcing plate 10 can provide stress for the left side of the second expansion plate 13, so that the strength of the second expansion plate 13 is improved, and the second reinforcing plate 28 can provide stress for the right side of the first expansion plate 19, so that the strength of the first expansion plate 19 is improved.
The lower end of the curved rod 27 is in threaded connection with a bolt 26, the upper end of the bolt 26 penetrates through the crank 27, the lower end of the transmission chamber 21 is circular and provided with a cylindrical clamping groove 25, and the upper end of the bolt 26 is clamped in the cylindrical clamping groove 25. The bolt 26 passes through the curved rod 27 and is clamped in the cylindrical clamping groove 25, so that the curved rod 27 can be fixed, the curved rod 27 can not rotate any more, and the clamping plate 6 is prevented from moving rightwards to cause the loudspeaker to be loosened and fall off.
The working principle is as follows: the level of built-in fitting shell 5 is buried in the wall body, then according to the first expansion plate 19 of length adjustment and the extension length of second expansion plate 13 of speaker, then hug closely the speaker left side and place in antiskid ribbed tile 14 and the 8 right sides of third rubber slab, rotatory curved bar 27, drive threaded rod 2 and rotate, it wants the left motion to drive slider 1 and splint 6, utilize first rubber slab 17, second rubber 15, third rubber slab 8 and antiskid ribbed tile 14 are pressed from both sides the speaker and are pressed from both sides fixedly, then screw in bolt 26, let bolt 26 upper end insert in cylinder draw-in groove 25, it is fixed with curved bar 27.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (6)
1. A wall-mounted loudspeaker embedded part for a railway is characterized in that: the embedded part type transmission device comprises an embedded part shell (5), wherein a transmission chamber (21) is formed in the right side of the embedded part shell (5), a threaded rod (2) is assembled on the upper side of the inner side wall of the embedded part shell (5), a sliding block (1) is connected onto the threaded rod (2) in a threaded mode, a guide rod (3) is transversely inserted into the sliding block (1), two ends of the guide rod (3) are assembled on the side wall of the embedded part shell (5), the right end of the threaded rod (2) is inserted into the transmission chamber (21), a first helical gear (24) is assembled at the right end of the threaded rod (2), a second helical gear (2) is meshed at the lower end of the first helical gear (24), a rotating shaft (22) is assembled in the middle of the second helical gear (23), the rotating shaft (22) is longitudinally assembled in the transmission chamber (21), and a curved rod (27) is assembled at the lower end of the rotating shaft (22);
the lower end of the sliding block (1) is provided with a clamping plate (6), the middle of the lower end of the embedded part shell (5) is provided with a rectangular hole (7), the clamping plate (6) is slidably assembled in the rectangular hole (7), a first connecting plate (16) is assembled at the lower end of the clamping plate (6), the lower end of the first connecting plate (16) is provided with a first clamping plate (20), the outer side of the first clamping plate (20) is sleeved with a first expansion plate (19), the left side of the first expansion plate (19) is uniformly provided with a spring (18), the left side of the spring (18) is provided with a first rubber plate (17), a pressure stop plate (9) is assembled at the left end of the lower side of the embedded part shell (5), a second connecting plate (11) is assembled at the lower end of the pressure stop plate (9), the lower end of the second connecting plate (11) is provided with a second clamping plate (12), and a second expansion plate (13) is sleeved on the outer side of the second clamping plate (12).
2. A wall mountable speaker embedment for a railway as claimed in claim 1, wherein: spring (18) include spring body (184), spring body (184) right-hand member assembly is on first expansion plate (19), spring body (184) left end assembly is on rubber slab (17), spring body (184) outside has cup jointed spring protection cover (182), spring body (184) surface is equipped with anti-corrosion coating (185), anti-corrosion coating (185) surface is equipped with anti-skidding line (183), rubber protection cover (182) inner wall with anti-skidding line (183) offset, the surface of rubber protection cover (182) is equipped with wearing layer (181).
3. A wall mountable speaker embedment for a railway as claimed in claim 1, wherein: the two sides of the lower end of the sliding block (1) are provided with reinforcing ribs (4), and the lower ends of the reinforcing ribs (4) are arranged on two sides of the clamping plate (6).
4. A wall mountable speaker embedment for a railway as claimed in claim 1, wherein: antiskid plates (14) are pasted on the right sides of the second expansion plates (13), second rubber plates (15) are pasted on the parts, exposed out of the outer side of the embedded part shell (5), of the left sides of the clamping plates (6), and third rubber plates (8) are pasted on the right sides of the pressure stopping plates (9).
5. A wall mountable speaker embedment for a railway as claimed in claim 1, wherein: the embedded part shell (5) is provided with a first reinforcing plate (10) on the left side of the pressure stop plate (9), and the lower end of the right side of the clamping plate (6) is provided with a second reinforcing plate (28).
6. A wall mountable speaker embedment for a railway as claimed in claim 1, wherein: the lower end of the curved rod (27) is connected with a bolt (26) in a threaded mode, the upper end of the bolt (26) penetrates through the crank (27), the lower end of the transmission chamber (21) is circular and provided with a cylindrical clamping groove (25), and the upper end of the bolt (26) is clamped in the clamping groove (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111256272.4A CN114095813A (en) | 2021-10-27 | 2021-10-27 | Wall-mounted loudspeaker embedded part for railway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111256272.4A CN114095813A (en) | 2021-10-27 | 2021-10-27 | Wall-mounted loudspeaker embedded part for railway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114095813A true CN114095813A (en) | 2022-02-25 |
Family
ID=80298144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111256272.4A Pending CN114095813A (en) | 2021-10-27 | 2021-10-27 | Wall-mounted loudspeaker embedded part for railway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114095813A (en) |
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| US20090324004A1 (en) * | 2008-06-27 | 2009-12-31 | High Hit Enterprise Co., Ltd. | Rapid Installation and Detachment Device for Flush Mounting Speaker on Ceiling or Wall |
| ES1075362U (en) * | 2011-05-27 | 2011-09-28 | Liang-Chih Cheng | Support for recessed loudspeaker on the single installation ceiling. (Machine-translation by Google Translate, not legally binding) |
| CN206894859U (en) * | 2017-04-19 | 2018-01-16 | 东莞市隆锐行电子有限公司 | A kind of multifunctional sound box lamp |
| CN108238084A (en) * | 2018-03-07 | 2018-07-03 | 江苏海事职业技术学院 | A kind of cart type multimedia equipment |
| CN207603840U (en) * | 2017-12-07 | 2018-07-10 | 郑州小夫子文化传媒有限公司 | A kind of sound box bracket |
| CN208227228U (en) * | 2018-05-28 | 2018-12-11 | 陈逸丹 | A kind of sound equipment convenient for placement |
| CN208749892U (en) * | 2018-08-26 | 2019-04-16 | 卓越五金弹簧（深圳）有限公司 | A kind of double shielding face torque spring |
| CN209532606U (en) * | 2019-03-09 | 2019-10-25 | 梅林森 | A kind of equipment convenient for vehicle-mounted sound box installation |
| CN210053575U (en) * | 2019-07-29 | 2020-02-11 | 王浩原 | Voice broadcasting device for high school self-help enrollment examination |
| CN210579069U (en) * | 2019-12-20 | 2020-05-19 | 广州华亮信兴电器制造有限公司 | Movable fixing frame for metal ceiling sound box |
| CN111405395A (en) * | 2020-03-18 | 2020-07-10 | 贡建友 | Speaker with anion generator and sound equipment using the same |
| CN112104934A (en) * | 2020-09-23 | 2020-12-18 | 湘潭文进文化艺术传播有限公司 | Digital sound equipment for literature activity planning |
| DE212020000306U1 (en) * | 2020-08-15 | 2021-02-10 | Liuheng Metal Technology (Kunshan) Co., Ltd. | A clamping mechanism for making mobile phone shells |
| CN213118366U (en) * | 2020-07-21 | 2021-05-04 | 武汉宏楚威科技有限公司 | Wall-mounted loudspeaker embedded part for railway station room |
| KR20210103783A (en) * | 2020-02-14 | 2021-08-24 | 엘지전자 주식회사 | Smar wall |
-
2021
- 2021-10-27 CN CN202111256272.4A patent/CN114095813A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090324004A1 (en) * | 2008-06-27 | 2009-12-31 | High Hit Enterprise Co., Ltd. | Rapid Installation and Detachment Device for Flush Mounting Speaker on Ceiling or Wall |
| ES1075362U (en) * | 2011-05-27 | 2011-09-28 | Liang-Chih Cheng | Support for recessed loudspeaker on the single installation ceiling. (Machine-translation by Google Translate, not legally binding) |
| CN206894859U (en) * | 2017-04-19 | 2018-01-16 | 东莞市隆锐行电子有限公司 | A kind of multifunctional sound box lamp |
| CN207603840U (en) * | 2017-12-07 | 2018-07-10 | 郑州小夫子文化传媒有限公司 | A kind of sound box bracket |
| CN108238084A (en) * | 2018-03-07 | 2018-07-03 | 江苏海事职业技术学院 | A kind of cart type multimedia equipment |
| CN208227228U (en) * | 2018-05-28 | 2018-12-11 | 陈逸丹 | A kind of sound equipment convenient for placement |
| CN208749892U (en) * | 2018-08-26 | 2019-04-16 | 卓越五金弹簧（深圳）有限公司 | A kind of double shielding face torque spring |
| CN209532606U (en) * | 2019-03-09 | 2019-10-25 | 梅林森 | A kind of equipment convenient for vehicle-mounted sound box installation |
| CN210053575U (en) * | 2019-07-29 | 2020-02-11 | 王浩原 | Voice broadcasting device for high school self-help enrollment examination |
| CN210579069U (en) * | 2019-12-20 | 2020-05-19 | 广州华亮信兴电器制造有限公司 | Movable fixing frame for metal ceiling sound box |
| KR20210103783A (en) * | 2020-02-14 | 2021-08-24 | 엘지전자 주식회사 | Smar wall |
| CN111405395A (en) * | 2020-03-18 | 2020-07-10 | 贡建友 | Speaker with anion generator and sound equipment using the same |
| CN213118366U (en) * | 2020-07-21 | 2021-05-04 | 武汉宏楚威科技有限公司 | Wall-mounted loudspeaker embedded part for railway station room |
| DE212020000306U1 (en) * | 2020-08-15 | 2021-02-10 | Liuheng Metal Technology (Kunshan) Co., Ltd. | A clamping mechanism for making mobile phone shells |
| CN112104934A (en) * | 2020-09-23 | 2020-12-18 | 湘潭文进文化艺术传播有限公司 | Digital sound equipment for literature activity planning |
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Application publication date: 20220225 |