CN112653950A - Loudspeaker device capable of flexibly adjusting sound outlet angle - Google Patents

Loudspeaker device capable of flexibly adjusting sound outlet angle Download PDF

Info

Publication number
CN112653950A
CN112653950A CN202110053217.9A CN202110053217A CN112653950A CN 112653950 A CN112653950 A CN 112653950A CN 202110053217 A CN202110053217 A CN 202110053217A CN 112653950 A CN112653950 A CN 112653950A
Authority
CN
China
Prior art keywords
fixedly connected
speaker device
loudspeaker
support frame
flexibly adjusting
Prior art date
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.)
Granted
Application number
CN202110053217.9A
Other languages
Chinese (zh)
Other versions
CN112653950B (en
Inventor
张晨阳
张超能
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Shenguang Electronic Technology Co ltd
Original Assignee
Jiangsu Shenguang Electronic Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Shenguang Electronic Technology Co ltd filed Critical Jiangsu Shenguang Electronic Technology Co ltd
Priority to CN202110053217.9A priority Critical patent/CN112653950B/en
Publication of CN112653950A publication Critical patent/CN112653950A/en
Application granted granted Critical
Publication of CN112653950B publication Critical patent/CN112653950B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/02Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/02Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/026Supports for loudspeaker casings
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/20Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/323Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for loudspeakers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/02Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)

Abstract

The invention discloses a loudspeaker device capable of flexibly adjusting the sound output angle, which comprises a placing box, wherein the inner top wall of the placing box and the inner bottom wall of the placing box are fixedly hinged with a loudspeaker through two pin shafts, the left end of the loudspeaker is fixedly connected with a semicircular gear, a rotating gear matched with the semicircular gear is arranged in the placing box and is meshed with the semicircular gear, a first sealing bearing is fixedly embedded in the bottom surface of the rotating gear, and an L-shaped supporting rod is fixedly connected to the inner side wall of the placing box. According to the loudspeaker device capable of flexibly adjusting the sound outlet angle, the servo motor can be used for driving the threaded rod to rotate, the threaded rod is connected with the threaded hole through the threads, the supporting frame is driven to move up and down, the placing box and the loudspeaker are driven to move up and down, the height of the loudspeaker is adjusted, and the loudspeaker is convenient to use and spread sound.

Description

Loudspeaker device capable of flexibly adjusting sound outlet angle
Technical Field
The invention belongs to the technical field of loudspeakers, and particularly relates to a loudspeaker device capable of flexibly adjusting a sound output angle.
Background
The loudspeaker is also called a loudspeaker, it is a transducing device which changes the electrical signal into the acoustic signal, the performance of the loudspeaker is good and has great influence on the tone quality, the loudspeaker is the weakest device in the acoustic equipment, and for the acoustic effect, it is the most important part, it can be seen in the electronic and electric equipment of the sound production, the existing loudspeaker is mostly fixed on the mounting bracket when using, can't adjust the angle of the loudspeaker in due time, cause the loudspeaker to spread the sound range small, is not convenient for people's use, therefore in order to solve the above problems, we provide a loudspeaker installation that can adjust the sound angle flexibly.
Disclosure of Invention
The invention provides a loudspeaker and aims to solve the problems that when the existing loudspeaker is used, most of the existing loudspeaker is fixed on a mounting bracket, the angle of the loudspeaker cannot be adjusted timely, the range of sound transmitted by the loudspeaker is small, and the loudspeaker is inconvenient to use by people.
The invention is realized in such a way that a loudspeaker device capable of flexibly adjusting the sound output angle comprises a placing box, wherein the inner top wall of the placing box and the inner bottom wall of the placing box are fixedly hinged with a loudspeaker through two pin shafts together, the left end of the loudspeaker is fixedly connected with a semicircular gear, a rotating gear matched with the semicircular gear is arranged in the placing box and meshed with the semicircular gear, a first sealing bearing is fixedly embedded in the bottom surface of the rotating gear, an L-shaped supporting rod is fixedly connected to the inner side wall of the placing box, the top end of the L-shaped supporting rod is fixedly connected with the inner ring of the first sealing bearing, and a supporting frame is fixedly connected to the bottom surface of the placing box.
Further, the last fixed surface who places the case inlays and has the second sealed bearing, the top of placing the case is equipped with the dwang, the bottom of dwang runs through the second sealed bearing and extends to the inside of placing the case, the bottom of dwang and slewing gear's last fixed surface are connected, the last fixed surface of dwang is connected with the fixed disk, the spacing hole that the annular was arranged is seted up to the upper surface of fixed disk, the last fixed surface of fixed disk is connected with the runner.
Further, the upper surface fixedly connected with expanding spring who places the case, expanding spring's top fixedly connected with clamp plate, the upper surface of placing the case has seted up the slide opening, the inside of placing the case is equipped with the slide bar with slide opening looks adaptation, the bottom fixedly connected with baffle of slide bar, the top of slide bar runs through slide opening, expanding spring and clamp plate in proper order and extends to the inside in spacing hole.
Further, the below of support frame is equipped with the mounting panel, two sets of mounting holes have been seted up to the upper surface of mounting panel, the last fixed surface of mounting panel is connected with servo motor, servo motor's fixed surface is connected with the fixed block, every the bottom surface of fixed block all is connected with the last fixed surface of mounting panel.
Further, threaded hole is seted up to the bottom surface of support frame, servo motor's output fixedly connected with and threaded hole looks adaptation's threaded rod, the top of threaded rod runs through the threaded hole and extends to the inside of support frame, the top fixedly connected with stopper of threaded rod.
Further, the equal fixedly connected with two slide drums of the left and right sides face of support frame, the last fixed surface of mounting panel is connected with two sets of gag lever posts, every the top of gag lever post all runs through the slide drum and extends to the top of slide drum.
Furthermore, the front fixedly connected with data plate of support frame, the data plate is located the middle part of support frame, the front fixedly connected with control switch of support frame, control switch is located the below of data plate.
Compared with the prior art, the invention has the beneficial effects that: through runner and the dwang that sets up, can rotate the runner and make dwang and running gear rotate, utilize running gear and semicircular gear's meshing and through the cooperation with the round pin axle, can make the speaker luffing motion, and expanding spring and slide bar through the setting, can utilize expanding spring to drive the slide bar rebound, the inside in spacing hole is gone into to the card, fix the speaker, and then realize the regulation to the speaker angle, the propagation of the speaker sound of being convenient for, through the servo motor who sets up, it is rotatory to utilize servo motor work to drive the threaded rod, utilize the threaded connection of threaded rod and screw hole, it reciprocates to drive the support frame, and then the reciprocating of placing case and speaker is driven, realize the adjustment to the speaker height, the use of the speaker of being convenient for and the propagation of speaker to sound.
Drawings
Fig. 1 is a sectional view showing a front view of a speaker device placement box in which a sound output angle can be flexibly adjusted according to the present invention;
FIG. 2 is a sectional view of a top view of a speaker device housing case with a flexibly adjustable sound outlet angle according to the present invention;
FIG. 3 is a side view of a speaker device placement box with flexibly adjustable sound output angle according to the present invention;
fig. 4 is an enlarged schematic view of a structure a in fig. 1 of a speaker device capable of flexibly adjusting a sound output angle according to the present invention.
In the figure: 1. placing a box; 2. a rotating wheel; 3. a limiting hole; 4. fixing the disc; 5. rotating the rod; 6. a rotating gear; 7. a first sealed bearing; 8. an L-shaped support bar; 9. a threaded rod; 10. a threaded hole; 11. a fixed block; 12. a servo motor; 13. mounting a plate; 14. mounting holes; 15. a limiting rod; 16. a slide cylinder; 17. a support frame; 18. a limiting block; 19. a speaker; 20. a semicircular gear; 21. a control switch; 22. a nameplate; 23. a slide bar; 24. pressing a plate; 25. a tension spring; 26. a slide hole; 27. a baffle plate; 28. and a second sealed bearing.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1-4, a speaker device capable of flexibly adjusting a sound output angle includes a placing box 1, a speaker 19 is fixedly hinged to an inner top wall of the placing box 1 and an inner bottom wall of the placing box 1 together through two pins, a semicircular gear 20 is fixedly connected to a left end of the speaker 19, a rotating gear 6 matched with the semicircular gear 20 is arranged inside the placing box 1, the rotating gear 6 is meshed with the semicircular gear 20, a first sealing bearing 7 is fixedly embedded in a bottom surface of the rotating gear 6, an L-shaped support rod 8 is fixedly connected to an inner side wall of the placing box 1, a top end of the L-shaped support rod 8 is fixedly connected to an inner ring of the first sealing bearing 7, and a support frame 17 is fixedly connected to the bottom surface of the placing box 1.
According to the invention, a second sealing bearing 28 is fixedly embedded on the upper surface of a placing box 1, a rotating rod 5 is arranged above the placing box 1, the bottom end of the rotating rod 5 penetrates through the second sealing bearing 28 and extends into the placing box 1, the bottom end of the rotating rod 5 is fixedly connected with the upper surface of a rotating gear 6, the upper surface of the rotating rod 5 is fixedly connected with a fixed disk 4, the upper surface of the fixed disk 4 is provided with limit holes 3 which are annularly arranged, and the upper surface of the fixed disk 4 is fixedly connected with a rotating wheel 2, so that a worker can more conveniently rotate the rotating rod 5, and the angle of a loudspeaker 19 can be conveniently adjusted;
according to the invention, the upper surface of the placing box 1 is fixedly connected with the telescopic spring 25, the top end of the telescopic spring 25 is fixedly connected with the pressing plate 24, the upper surface of the placing box 1 is provided with the sliding hole 26, the inside of the placing box 1 is provided with the sliding rod 23 matched with the sliding hole 26, the bottom end of the sliding rod 23 is fixedly connected with the baffle plate 27, the top end of the sliding rod 23 sequentially penetrates through the sliding hole 26, the telescopic spring 25 and the pressing plate 24 and extends to the inside of the limiting hole 3, the telescopic elasticity of the telescopic spring 25 can be utilized to drive the sliding rod 23 to move up and down, and the limiting and fixing of the fixed;
in the invention, the mounting plate 13 is arranged below the support frame 17, two groups of mounting holes 14 are formed in the upper surface of the mounting plate 13, the servo motor 12 is fixedly connected to the upper surface of the mounting plate 13, the fixed block 11 is fixedly connected to the outer surface of the servo motor 12, and the bottom surface of each fixed block 11 is fixedly connected with the upper surface of the mounting plate 13, so that a worker can conveniently mount and fix the loudspeaker 19, and the loudspeaker 19 can be conveniently used.
In the invention, the bottom surface of the supporting frame 17 is provided with a threaded hole 10, the output end of the servo motor 12 is fixedly connected with a threaded rod 9 matched with the threaded hole 10, the top end of the threaded rod 9 penetrates through the threaded hole 10 and extends into the supporting frame 17, the top end of the threaded rod 9 is fixedly connected with a limiting block 18, the supporting frame 17 can be driven to move up and down by utilizing the threaded connection between the threaded rod 9 and the threaded hole 10, and the height of the loudspeaker 19 can be conveniently driven and adjusted;
according to the invention, the left side surface and the right side surface of the support frame 17 are fixedly connected with the two sliding cylinders 16, the upper surface of the mounting plate 13 is fixedly connected with the two groups of limiting rods 15, and the top end of each limiting rod 15 penetrates through the sliding cylinder 16 and extends to the upper part of the sliding cylinder 16, so that the stability of the support frame 17 during movement can be effectively improved, and the movement adjustment of the loudspeaker 19 is facilitated;
in the invention, the name plate 22 is fixedly connected to the front surface of the support frame 17, the name plate 22 is positioned in the middle of the support frame 17, the control switch 21 is fixedly connected to the front surface of the support frame 17, and the control switch 21 is positioned below the name plate 22, so that the working process of the adjusting equipment can be conveniently explained through the name plate 22, and the operating control of a worker on the adjusting equipment is facilitated.
The working principle of the invention is as follows: when the loudspeaker 19 is used, firstly, a worker fixedly installs the installation plate 13 through the installation hole 14, when the loudspeaker 19 needs to be adjusted, the control switch 21 is clicked to enable the servo motor 12 to work to drive the threaded rod 9 to rotate, the support frame 17 is driven to move up and down through threaded connection of the threaded rod 9 and the threaded hole 10, meanwhile, the sliding cylinder 16 and the limiting rod 15 keep the stability of the support frame 17, the support frame 17 moves to drive the placing box 1 and the loudspeaker 19 to move, the height of the loudspeaker 19 is adjusted up and down, then the pressure plate 24 is moved to slide the sliding rod 23 out of the limiting hole 3 through the telescopic force of the telescopic spring 25, then the rotating wheel 2 is rotated to drive the rotating rod 5 and the rotating gear 6 to rotate, the rotating gear 6 is meshed with the semicircular gear 20 to drive the loudspeaker 19 to swing back and forth, then the sliding rod 23 is driven to move upwards by the telescopic force of the telescopic spring 25 to be, the loudspeaker 19 is fixed, so that the angle of the loudspeaker 19 is adjusted, and the sound of the loudspeaker 19 is conveniently transmitted.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a can adjust out speaker device of sound angle in a flexible way, is including placing case (1), its characterized in that: the utility model discloses a loudspeaker, including placing the interior roof of case (1) and the interior diapire of placing case (1), it has speaker (19) through two round pin axle fixed hinge joints jointly, the left end fixedly connected with semicircular gear (20) of speaker (19), the inside of placing case (1) is equipped with running gear (6) with semicircular gear (20) looks adaptation, running gear (6) mesh with semicircular gear (20), the bottom surface of running gear (6) is fixed to be inlayed and is had first sealed bearing (7), the inside wall fixedly connected with L type bracing piece (8) of placing case (1), the top of L type bracing piece (8) and the inner circle fixed connection of first sealed bearing (7), the bottom surface fixedly connected with support frame (17) of placing case (1).
2. The speaker device according to claim 1, wherein the speaker device is capable of flexibly adjusting the sound output angle, and comprises: the last fixed surface who places case (1) inlays and has second sealed bearing (28), the top of placing case (1) is equipped with dwang (5), the bottom of dwang (5) runs through second sealed bearing (28) and extends to the inside of placing case (1), the bottom of dwang (5) is connected with the last fixed surface of running gear (6), the last fixed surface of dwang (5) is connected with fixed disk (4), spacing hole (3) that the annular was arranged are seted up to the upper surface of fixed disk (4), the last fixed surface of fixed disk (4) is connected with runner (2).
3. The speaker device according to claim 1, wherein the speaker device is capable of flexibly adjusting the sound output angle, and comprises: the upper surface fixedly connected with expanding spring (25) of placing case (1), the top fixedly connected with clamp plate (24) of expanding spring (25), place the upper surface of case (1) and seted up slide opening (26), the inside of placing case (1) is equipped with slide bar (23) with slide opening (26) looks adaptation, the bottom fixedly connected with baffle (27) of slide bar (23), the top of slide bar (23) runs through slide opening (26), expanding spring (25) and clamp plate (24) in proper order and extends to the inside in spacing hole (3).
4. The speaker device according to claim 1, wherein the speaker device is capable of flexibly adjusting the sound output angle, and comprises: the below of support frame (17) is equipped with mounting panel (13), two sets of mounting hole (14) have been seted up to the upper surface of mounting panel (13), the last fixed surface of mounting panel (13) is connected with servo motor (12), the external fixed surface of servo motor (12) is connected with fixed block (11), every the bottom surface of fixed block (11) all is connected with the last fixed surface of mounting panel (13).
5. The speaker device according to claim 1, wherein the speaker device is capable of flexibly adjusting the sound output angle, and comprises: threaded hole (10) are seted up to the bottom surface of support frame (17), output fixedly connected with of servo motor (12) and threaded rod (9) of threaded hole (10) looks adaptation, the top of threaded rod (9) runs through threaded hole (10) and extends to the inside of support frame (17), the top fixedly connected with stopper (18) of threaded rod (9).
6. The speaker device according to claim 1, wherein the speaker device is capable of flexibly adjusting the sound output angle, and comprises: the equal fixedly connected with of the left and right sides face of support frame (17) two slide cartridge (16), the last fixed surface of mounting panel (13) is connected with two sets of gag lever posts (15), every slide cartridge (16) and the top that extends to slide cartridge (16) are all run through on the top of gag lever post (15).
7. The speaker device according to claim 1, wherein the speaker device is capable of flexibly adjusting the sound output angle, and comprises: the front fixedly connected with data plate (22) of support frame (17), data plate (22) are located the middle part of support frame (17), the front fixedly connected with control switch (21) of support frame (17), control switch (21) are located the below of data plate (22).
CN202110053217.9A 2021-01-15 2021-01-15 Loudspeaker device capable of flexibly adjusting sound output angle Active CN112653950B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110053217.9A CN112653950B (en) 2021-01-15 2021-01-15 Loudspeaker device capable of flexibly adjusting sound output angle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110053217.9A CN112653950B (en) 2021-01-15 2021-01-15 Loudspeaker device capable of flexibly adjusting sound output angle

Publications (2)

Publication Number Publication Date
CN112653950A true CN112653950A (en) 2021-04-13
CN112653950B CN112653950B (en) 2024-05-28

Family

ID=75368310

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110053217.9A Active CN112653950B (en) 2021-01-15 2021-01-15 Loudspeaker device capable of flexibly adjusting sound output angle

Country Status (1)

Country Link
CN (1) CN112653950B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117294997A (en) * 2023-11-27 2023-12-26 四川旷视软通电子科技有限公司 Speaker assembly and emergency amplifying device comprising same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990018907U (en) * 1997-11-14 1999-06-05 전주범 Speaker unit
KR20080093544A (en) * 2007-04-17 2008-10-22 심영호 Speaker orientation angle control apparatus
CN110430507A (en) * 2019-07-18 2019-11-08 广东兆磊电子科技有限公司 It is a kind of can flexible modulation go out the speaker unit of sound angle
CN210927892U (en) * 2019-12-10 2020-07-03 资兴市鼎晟电子科技有限公司 Angle adjusting device for loudspeaker
CN211352439U (en) * 2020-07-21 2020-08-25 广州思正电子股份有限公司 Loudspeaker convenient for adjusting sound-emitting angle
CN211959441U (en) * 2020-04-14 2020-11-17 东星电声科技(东莞)有限公司 Dustproof sound box with adjustable sound outlet angle

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19990018907U (en) * 1997-11-14 1999-06-05 전주범 Speaker unit
KR20080093544A (en) * 2007-04-17 2008-10-22 심영호 Speaker orientation angle control apparatus
CN110430507A (en) * 2019-07-18 2019-11-08 广东兆磊电子科技有限公司 It is a kind of can flexible modulation go out the speaker unit of sound angle
CN210927892U (en) * 2019-12-10 2020-07-03 资兴市鼎晟电子科技有限公司 Angle adjusting device for loudspeaker
CN211959441U (en) * 2020-04-14 2020-11-17 东星电声科技(东莞)有限公司 Dustproof sound box with adjustable sound outlet angle
CN211352439U (en) * 2020-07-21 2020-08-25 广州思正电子股份有限公司 Loudspeaker convenient for adjusting sound-emitting angle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117294997A (en) * 2023-11-27 2023-12-26 四川旷视软通电子科技有限公司 Speaker assembly and emergency amplifying device comprising same
CN117294997B (en) * 2023-11-27 2024-01-23 四川旷视软通电子科技有限公司 Speaker assembly and emergency amplifying device comprising same

Also Published As

Publication number Publication date
CN112653950B (en) 2024-05-28

Similar Documents

Publication Publication Date Title
CN108872756A (en) A kind of display panel automatic turning conducting structure and test fixture
CN112377787B (en) Display installation device of crane
CN112653950A (en) Loudspeaker device capable of flexibly adjusting sound outlet angle
CN212009897U (en) A multimedia teaching device for information-based education
CN208937655U (en) A kind of display panel automatic turning conducting structure and test fixture
CN116683879A (en) Digital radio frequency power amplifier capable of being remotely managed and debugged
CN210016586U (en) Recording equipment is used in vocal music teaching
CN215345063U (en) Tool of easily carrying out accurate location installation to speaker
CN211223255U (en) Multimedia equipment support frame for new energy automobile
CN214591973U (en) Earphone test fixture
CN209545784U (en) One kind is exempted to punch installing type artificial intelligence sound equipment
CN212510121U (en) A mounting bracket for surveillance camera head
CN216391320U (en) Sound box with wireless routing function
CN221075856U (en) Monitoring mounting frame with 360-degree adjusting function
CN215268613U (en) Sound equipment based on thing networking remote control
CN209693034U (en) A kind of stereo microphone based on wireless blue tooth chip module
CN220292142U (en) Megaphone with dustproof function
CN221575599U (en) Dust protected speaker
CN212969997U (en) Anti-aging loudspeaker box upper cover
CN221453332U (en) Be used for building municipal construction grit sieve separator
CN213547772U (en) Loudspeaker support
CN219395001U (en) Wall-mounted sound box
CN216721518U (en) Horn with improved structure
CN216046726U (en) Adsorption suspension type projector convenient to adjustment installation angle
CN219912392U (en) Building security protection control early warning device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant