CN108668195B - Directive horn - Google Patents

Directive horn Download PDF

Info

Publication number
CN108668195B
CN108668195B CN201810456744.2A CN201810456744A CN108668195B CN 108668195 B CN108668195 B CN 108668195B CN 201810456744 A CN201810456744 A CN 201810456744A CN 108668195 B CN108668195 B CN 108668195B
Authority
CN
China
Prior art keywords
plates
rotating shaft
wall
horn
horn body
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.)
Active
Application number
CN201810456744.2A
Other languages
Chinese (zh)
Other versions
CN108668195A (en
Inventor
杨明
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.)
Sichuan Ai Gebit Technology Co Ltd
Original Assignee
Sichuan Ai Gebit 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 Sichuan Ai Gebit Technology Co Ltd filed Critical Sichuan Ai Gebit Technology Co Ltd
Priority to CN201810456744.2A priority Critical patent/CN108668195B/en
Publication of CN108668195A publication Critical patent/CN108668195A/en
Application granted granted Critical
Publication of CN108668195B publication Critical patent/CN108668195B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Toys (AREA)

Abstract

The invention discloses a directional horn, which comprises a horn body, wherein a triangular cone is installed on the inner wall of the bottom of the horn body, a transducer positioned above the triangular cone is arranged in the horn body, two supporting plates are arranged under the horn body, the top of each supporting plate is welded with the same mounting seat, a mounting groove is formed in the top of each mounting seat, the horn body is installed in the mounting groove, first rotating holes are formed in one sides, close to each other, of the two supporting plates, the same first rotating shaft is rotatably installed in the two first rotating holes, two symmetrically-arranged vertical holes are formed in the inner wall of the bottom of the mounting groove, vertical plates are slidably installed in the vertical holes, the bottoms of the vertical plates extend to the lower side of the first rotating shafts, and the two vertical plates are positioned on the same side of the. The horn-shaped transducer is high in practicability, strong in directivity through the triangular cone and the transducer, and convenient to replace a horn body through the vertical plate and the clamping plate.

Description

Directive horn
Technical Field
The invention relates to the technical field of loudspeaker sound amplification equipment, in particular to a directional horn.
Background
The horn is a musical instrument, the authorized announcement number is CN206118020U discloses a horn, including a barrel and horn mouth and throat mouth which are respectively arranged at the left and right ends of the barrel, the barrel includes two opposite narrow curved surface barrel walls and two opposite wide curved surface barrel walls, the horn mouth is provided with a panel, the panel includes two opposite straight plates and two opposite bent plates, the straight plates are arranged corresponding to the narrow curved surface barrel walls, the bent plates are arranged corresponding to the wide curved surface barrel walls, the throat mouth is provided with a mounting seat, the mounting seat is provided with a mounting screw hole, the horn mouth can achieve the function of a linear array part, the cost performance is greatly improved, the size of the horn mouth is large enough, the radiation impedance in the working frequency band is close to pure impedance, the horizontal direction coverage angle is not less than 70 degrees, the remote sound amplification is realized, the output sound pressure level reaches 110dB, but the directivity is poor because the specific analysis and design are not carried out according to the propagation characteristics of longitudinal waves, the horn is characterized in that sound longitudinal waves are emitted to a plurality of directions after being pushed out to leave the horn or the horn, so that the directivity is poor, most of the sound longitudinal waves are fixedly installed and inconvenient to detach, and once the horn is damaged, the horn is inconvenient to replace, so that the directivity horn is provided for solving the problems.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a directional horn.
The invention provides a directional horn, which comprises a horn body, wherein a triangular cone is installed on the inner wall of the bottom of the horn body, a transducer positioned above the triangular cone is arranged in the horn body, two supporting plates are arranged under the horn body, the tops of the two supporting plates are welded with the same mounting seat, the top of the mounting seat is provided with a mounting groove, the horn body is installed in the mounting groove, one sides of the two supporting plates, which are close to each other, are respectively provided with a first rotating hole, the two first rotating holes are internally and rotatably provided with the same first rotating shaft, the inner wall of the bottom of the mounting groove is provided with two vertical holes which are symmetrically arranged, vertical plates are arranged in the vertical holes in a sliding manner, the bottoms of the vertical plates extend to the lower part of the first rotating shafts, the two vertical plates are positioned on the same side of the first rotating shafts, gears are installed on the outer sides of the first rotating, two first bevel gears are fixedly sleeved on the outer side of the first rotating shaft, two supporting plates are located between the two first bevel gears, two symmetrically arranged placing cavities are arranged on the mounting seat, a second rotating hole is formed in the inner wall of the bottom of the placing cavity, a second rotating shaft is rotatably installed in the second rotating hole, the bottom end of the second rotating shaft extends to the lower portion of the mounting seat and is welded with a second bevel gear, the second bevel gear is meshed with the first bevel gear, a rotating groove is formed in the inner wall of the top of the placing cavity, the top end of the second rotating shaft extends into the corresponding rotating groove, a movable plate is arranged in the placing cavity, a threaded hole is formed in the top of the movable plate, an external thread is formed in the outer side of the second rotating shaft in the placing cavity, the external thread on the second rotating shaft is in threaded connection with the threaded hole, and one side, all welded the fixed column on two one side inner walls of placing the chamber and being close to each other, the outside slip cap of fixed column is equipped with the sliding plate, the other end of traction lever articulates in the bottom of corresponding sliding plate, the diaphragm has all been welded to one side bottom that two sliding plates are close to each other, two cross holes that are located the fixed column below have all been seted up on placing one side inner wall that the chamber is close to each other, be equipped with the cardboard in the cross hole, one side that two diaphragms are close to each other extends to in the corresponding cross hole respectively and contacts with the cardboard, one side that two cardboards are close to each other all extends to in the mounting groove.
Preferably, the locating grooves are formed in the inner wall of the top of the cross hole and the inner wall of the bottom of the cross hole, the locating plates are welded to the top and the bottom of the clamping plate, one sides, far away from each other, of the two locating plates on the same vertical axis extend into the corresponding locating grooves respectively, springs are welded to the inner wall, close to each other, of the two locating grooves on the same horizontal axis, and one ends, far away from each other, of the two springs on the same horizontal axis are welded to the corresponding locating plates respectively.
Preferably, the two moving plates are symmetrically arranged, and one sides, far away from each other, of the two moving plates are respectively connected with the inner walls, far away from each other, of the two placing cavities in a sliding manner.
Preferably, the apex of the triangular cone is ninety degrees.
Preferably, the included angle between the side wall of the horn body and the inner wall of the bottom of the horn body is one hundred thirty five degrees.
Preferably, two risers symmetry sets up, and the top of riser and the bottom of horn body contactless.
Preferably, the top of the sliding plate is slidably connected with the inner wall of the top of the placing cavity.
Preferably, the outer side of the second rotating shaft in the rotating groove is provided with a sliding block, the inner wall of the rotating groove is provided with an annular sliding rail, and the sliding block is connected with the annular sliding rail in a sliding manner.
Compared with the prior art, the invention has the beneficial effects that:
(1) the horn body, the triangular cone and the transducer are matched, sound emitted by the transducer is reflected by the triangular cone, then is transmitted in parallel with the inner wall of the bottom of the horn body, and is reflected by the side wall of the horn body, the included angle of which with the inner wall of the bottom of the horn body is one hundred thirty five degrees, sound waves vertical to the inner wall of the bottom of the horn body are radiated, and the directivity is strong;
(2) when a horn body is damaged and needs to be replaced, the first rotating shaft is rotated, the first rotating shaft drives the first conical gear to rotate, the gear on the first rotating shaft is meshed with the rack on the vertical plate to drive the vertical plate to move, the first conical gear drives the second conical gear to rotate, the second conical gear drives the second rotating shaft to rotate, the external thread on the second rotating shaft is in threaded connection with the threaded hole to drive the movable plate to move, the traction rod drives the sliding plate to move, the sliding plate drives the transverse plate to move, so that the transverse plate is separated from the clamping plate, the spring drives the positioning block to move due to the elasticity of the spring, the positioning block drives the clamping plate to move, the clamping plate is separated from the horn body, the horn body is removed from being fixed, the vertical plate is just in contact with the horn body at the moment, the first rotating shaft continues to rotate, and the horn body is convenient to replace.
The horn-shaped transducer is high in practicability, strong in directivity through the triangular cone and the transducer, and convenient to replace a horn body through the vertical plate and the clamping plate.
Drawings
FIG. 1 is a schematic structural diagram of a directional horn according to the present invention;
FIG. 2 is a schematic structural diagram of a portion A of a directional horn according to the present invention;
FIG. 3 is a schematic structural diagram of a portion B of a directional horn according to the present invention;
FIG. 4 is a schematic structural diagram of a portion C of a directional horn according to the present invention;
fig. 5 is a schematic view of a connection structure between a gear on a first rotating shaft of the directional horn and a rack on a vertical plate according to the present invention.
In the figure: the transducer comprises a number 1 cylinder body, a support plate 2, an installation seat 3, an installation groove 4, a first rotating hole 5, a first rotating shaft 6, a vertical hole 7, a vertical plate 8, a gear 9, a rack 10, a first bevel gear 11, a second rotating hole 12, a second rotating shaft 13, a second bevel gear 14, a placing cavity 15, a rotating groove 16, a moving plate 17, a threaded hole 18, a traction rod 19, a fixed column 20, a sliding plate 21, a transverse plate 22, a transverse hole 23, a clamping plate 24, a positioning groove 25, a positioning plate 26, a spring 27, a triangular cone 28 and a transducer 29.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Examples
Referring to fig. 1-5, the present embodiment provides a directional horn, which includes a horn body 1, a triangular cone 28 is installed on the bottom inner wall of the horn body 1, a transducer 29 located above the triangular cone 28 is installed in the horn body 1, two supporting plates 2 are installed under the horn body 1, the same mounting seat 3 is welded on the top of the two supporting plates 2, a mounting groove 4 is formed on the top of the mounting seat 3, the horn body 1 is installed in the mounting groove 4, first rotating holes 5 are formed on the sides of the two supporting plates 2 close to each other, the same first rotating shaft 6 is rotatably installed in the two first rotating holes 5, two symmetrically arranged vertical holes 7 are formed on the bottom inner wall of the mounting groove 4, a vertical plate 8 is slidably installed in the vertical hole 7, the bottom of the vertical plate 8 extends to the lower side of the first rotating shaft 6, and the two vertical plates 8 are located on the same side of the first rotating shaft 6, a gear 9 is installed on the outer side of the first rotating shaft 6, a rack 10 is installed on one side of the vertical plate 8 close to the first rotating shaft 6, the gear 9 is meshed with the rack 10, two first bevel gears 11 are fixedly sleeved on the outer side of the first rotating shaft 6, two supporting plates 2 are located between the two first bevel gears 11, two symmetrically arranged placing cavities 15 are arranged on the mounting seat 3, a second rotating hole 12 is formed in the inner wall of the bottom of the placing cavity 15, a second rotating shaft 13 is rotatably installed in the second rotating hole 12, the bottom end of the second rotating shaft 13 extends to the lower side of the mounting seat 3 and is welded with a second bevel gear 14, the second bevel gear 14 is meshed with the first bevel gear 11, a rotating groove 16 is formed in the inner wall of the top of the placing cavity 15, the top end of the second rotating shaft 13 extends into the corresponding rotating groove 16, a moving plate 17 is arranged in the placing cavity 15, and a threaded hole, the outer side of a second rotating shaft 13 positioned in the placing cavity 15 is provided with an external thread, the external thread on the second rotating shaft 13 is in threaded connection with a threaded hole 18, one side of the top part, close to each other, of each of two moving plates 17 is hinged with one end of a traction rod 19, the inner wall, close to each other, of each of the two placing cavities 15 is welded with a fixed column 20, the outer side of each fixed column 20 is slidably sleeved with a sliding plate 21, the other end of each traction rod 19 is hinged with the bottom of the corresponding sliding plate 21, the bottom of one side, close to each other, of each of the two sliding plates 21 is welded with a transverse plate 22, the inner wall, close to each other, of each of the two placing cavities 15 is provided with a transverse hole 23 positioned below the fixed column 20, clamping plates 24 are arranged in the transverse holes 23, one side, close to each other, of the two transverse plates 22 respectively extends into, through the matching of the horn body 1, the triangular cone 28 and the transducer 29, the sound emitted by the transducer 29 is reflected by the triangular cone 28, then is transmitted in parallel with the inner wall of the bottom of the horn body 1, and is reflected by the side wall of the horn body 1, which forms an included angle of one hundred thirty five degrees with the inner wall of the bottom of the horn body 1, so that the sound wave vertical to the inner wall of the bottom of the horn body 1 is radiated, and the directivity is strong; when the horn body 1 is damaged and needs to be replaced, the first rotating shaft 6 is rotated, the first rotating shaft 6 drives the first conical gear 11 to rotate, the gear 9 on the first rotating shaft 6 is meshed with the rack 10 on the vertical plate 8 to drive the vertical plate 8 to move, the first conical gear 11 drives the second conical gear 14 to rotate, the external thread on the second rotating shaft 13 is in threaded connection with the threaded hole 18 to drive the moving plate 17 to move, the moving plate 17 drives the traction rod 19 to rotate, the traction rod 19 drives the sliding plate 21 to move, the sliding plate 21 drives the transverse plate 22 to move, the transverse plate 22 is separated from the clamping plate 24, the spring 27 drives the positioning block 26 to move due to elasticity of the spring 27, the positioning block 26 drives the clamping plate 24 to move, the clamping plate 24 is separated from the horn body 1, fixing of the horn body 1 is removed, the vertical plate 8 is just in contact with the horn body 1 at the moment, the first rotating shaft 6 continues to rotate, and replacement of the horn body 1 is facilitated.
In this embodiment, the top inner wall and the bottom inner wall of the cross hole 23 are both provided with positioning slots 25, the top and the bottom of the clamping plate 24 are both welded with positioning plates 26, the sides of the two positioning plates 26 located on the same vertical axis far away from each other respectively extend into the corresponding positioning slots 25, the inner walls of the two positioning slots 25 located on the same horizontal axis near each other are both welded with springs 27, the ends of the two springs 27 located on the same horizontal axis far away from each other are respectively welded with the corresponding positioning plates 26, the two moving plates 17 are symmetrically arranged, the sides of the two moving plates 17 far away from each other are respectively connected with the inner walls of the two placing cavities 15 far away from each other in a sliding manner, the vertex of the triangular cone 28 is ninety degrees, the included angle between the side wall of the horn body 1 and the bottom inner wall of the horn body 1 is one hundred thirty five degrees, the top of the vertical plate 8 is not in contact with the bottom of the horn body 1, the top of the sliding plate 21 is in sliding connection with the inner wall of the top of the placing cavity 15, a sliding block is installed on the outer side of the second rotating shaft 13 located in the rotating groove 16, an annular sliding rail is arranged on the inner wall of the rotating groove 16 and is in sliding connection with the annular sliding rail, the horn body 1, the triangular cone 28 and the transducer 29 are matched, sound emitted by the transducer 29 is reflected by the triangular cone 28 and then is transmitted in parallel with the inner wall of the bottom of the horn body 1, and sound waves vertical to the inner wall of the bottom of the horn body 1 are radiated after being reflected by the side wall of the horn body 1 with an included angle of one hundred thirty five degrees with the inner wall of the bottom of the horn body 1, so that; when the horn body 1 is damaged and needs to be replaced, the first rotating shaft 6 is rotated, the first rotating shaft 6 drives the first conical gear 11 to rotate, the gear 9 on the first rotating shaft 6 is meshed with the rack 10 on the vertical plate 8 to drive the vertical plate 8 to move, the first conical gear 11 drives the second conical gear 14 to rotate, the external thread on the second rotating shaft 13 is in threaded connection with the threaded hole 18 to drive the moving plate 17 to move, the moving plate 17 drives the traction rod 19 to rotate, the traction rod 19 drives the sliding plate 21 to move, the sliding plate 21 drives the transverse plate 22 to move, the transverse plate 22 is separated from the clamping plate 24, the spring 27 drives the positioning block 26 to move due to elasticity of the spring 27, the positioning block 26 drives the clamping plate 24 to move, the clamping plate 24 is separated from the horn body 1, fixing of the horn body 1 is removed, the vertical plate 8 is just in contact with the horn body 1 at the moment, the first rotating shaft 6 continues to rotate, and replacement of the horn body 1 is facilitated.
In the embodiment, in use, after the sound emitted by the transducer 29 is reflected by the triangular cone 28, the sound is propagated in parallel with the bottom inner wall of the horn body 1, and then is reflected by the side wall of the horn body 1 with an included angle of 135 degrees with the bottom inner wall of the horn body 1, the sound wave radiation perpendicular to the bottom inner wall of the horn body 1 is formed, the directivity is strong, when the horn body 1 is damaged and needs to be replaced, the first rotating shaft 6 is rotated, the first rotating shaft 6 drives the first bevel gear 11 to rotate, the gear 9 on the first rotating shaft 6 is engaged with the rack 10 on the vertical plate 8 to drive the vertical plate 8 to move, so that the vertical plate 8 slides on the inner wall of the vertical hole 7, the first bevel gear 11 drives the second bevel gear 14 to rotate, the second bevel gear 14 drives the second rotating shaft 13 to rotate, the external thread on the second rotating shaft 13 is in threaded connection with the threaded hole 18, drive movable plate 17 and remove, make movable plate 17 slide on placing the inner wall of chamber 15, movable plate 17 drives traction rod 19 and rotates, traction rod 19 drives sliding plate 21 and removes, make sliding plate 21 slide on placing the inner wall of chamber 15, sliding plate 21 drives diaphragm 22 and removes, make diaphragm 22 and cardboard 24 phase separation, spring 27 drives locating piece 26 owing to self elasticity and removes, locating piece 26 drives cardboard 24 and removes, make cardboard 24 and horn body 1 phase separation, remove the fixed to horn body 1, riser 8 just contacts with horn body 1 this moment, continue to rotate first pivot 6, be convenient for change horn body 1.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (6)

1. A directive horn comprises a horn body (1) and is characterized in that a triangular cone (28) is installed on the inner wall of the bottom of the horn body (1), a transducer (29) located above the triangular cone (28) is arranged in the horn body (1), two supporting plates (2) are arranged on the horn body (1), the same mounting seat (3) is welded on the tops of the two supporting plates (2), a mounting groove (4) is formed in the top of the mounting seat (3), the horn body (1) is installed in the mounting groove (4), first rotating holes (5) are formed in the sides, close to each other, of the two supporting plates (2), the same first rotating shaft (6) is rotatably installed in the two first rotating holes (5), two symmetrically-arranged vertical holes (7) are formed in the inner wall of the bottom of the mounting groove (4), a vertical plate (8) is slidably installed in the vertical holes (7), the bottom of a vertical plate (8) extends to the lower part of a first rotating shaft (6), two vertical plates (8) are positioned at the same side of the first rotating shaft (6), a gear (9) is installed at the outer side of the first rotating shaft (6), a rack (10) is installed at one side, close to the first rotating shaft (6), of each vertical plate (8), the gear (9) is meshed with the rack (10), two first bevel gears (11) are fixedly sleeved at the outer side of the first rotating shaft (6), two supporting plates (2) are both positioned between the two first bevel gears (11), two symmetrically-arranged placing cavities (15) are arranged on a mounting seat (3), a second rotating hole (12) is formed in the inner wall of the bottom of each placing cavity (15), a second rotating shaft (13) is rotatably installed in the second rotating hole (12), the bottom end of the second rotating shaft (13) extends to the lower part of the mounting seat (3) and is welded with a second bevel gear (14), the second bevel gear (14) is meshed with the first bevel gear (11), a rotating groove (16) is formed in the inner wall of the top of the placing cavity (15), the top end of the second rotating shaft (13) extends into the corresponding rotating groove (16), a moving plate (17) is arranged in the placing cavity (15), a threaded hole (18) is formed in the top of the moving plate (17), an external thread is formed in the outer side of the second rotating shaft (13) in the placing cavity (15), the external thread on the second rotating shaft (13) is in threaded connection with the threaded hole (18), one side, close to each other, of the tops of the two moving plates (17) is hinged with one end of a traction rod (19), fixed columns (20) are welded on the inner walls of the two sides, close to each other, of the two placing cavities (15), sliding plates (21) are sleeved on the outer sides of the fixed columns (20) in a sliding mode, and the, transverse plates (22) are welded at the bottoms of the sides, close to each other, of the two sliding plates (21), transverse holes (23) located below the fixing columns (20) are formed in the inner walls of the sides, close to each other, of the two placing cavities (15), clamping plates (24) are arranged in the transverse holes (23), one sides, close to each other, of the two transverse plates (22) extend into the corresponding transverse holes (23) respectively and are in contact with the clamping plates (24), and one sides, close to each other, of the two clamping plates (24) extend into the mounting groove (4) and are in contact with the two sides of the horn body (1) respectively;
the vertex of the triangular cone (28) is ninety degrees, and the included angle between the side wall of the horn body (1) and the inner wall of the bottom of the horn body (1) is one hundred thirty five degrees.
2. The directional horn according to claim 1, wherein the cross holes (23) have positioning grooves (25) formed on the top inner wall and the bottom inner wall thereof, the positioning plates (26) are welded to the top and the bottom of the clamping plate (24), the sides of the two positioning plates (26) on the same vertical axis, which are far away from each other, extend into the corresponding positioning grooves (25), the inner walls of the two positioning grooves (25) on the same horizontal axis, which are close to each other, are welded with springs (27), and the ends of the two springs (27) on the same horizontal axis, which are far away from each other, are welded with the corresponding positioning plates (26).
3. The directional horn according to claim 1, wherein the two moving plates (17) are symmetrically arranged, and the sides of the two moving plates (17) far away from each other are slidably connected with the inner walls of the sides of the two placing cavities (15) far away from each other.
4. A directional horn according to claim 1, wherein the two risers (8) are symmetrically arranged and the tops of the risers (8) are not in contact with the bottom of the horn body (1).
5. A directional horn according to claim 1, wherein the top of the sliding plate (21) is slidably connected to the top inner wall of the receiving chamber (15).
6. The directional horn according to claim 1, wherein a slider is mounted on the outer side of the second shaft (13) in the rotation groove (16), and an annular slide rail is provided on the inner wall of the rotation groove (16), and the slider is slidably connected to the annular slide rail.
CN201810456744.2A 2018-05-14 2018-05-14 Directive horn Active CN108668195B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810456744.2A CN108668195B (en) 2018-05-14 2018-05-14 Directive horn

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810456744.2A CN108668195B (en) 2018-05-14 2018-05-14 Directive horn

Publications (2)

Publication Number Publication Date
CN108668195A CN108668195A (en) 2018-10-16
CN108668195B true CN108668195B (en) 2020-01-10

Family

ID=63779372

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810456744.2A Active CN108668195B (en) 2018-05-14 2018-05-14 Directive horn

Country Status (1)

Country Link
CN (1) CN108668195B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109990182A (en) * 2019-05-10 2019-07-09 马鞍山职业技术学院 A kind of computer-assisted instruction device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912866A (en) * 1974-01-30 1975-10-14 Showsound Inc Folded bass horn speaker
CN1235688A (en) * 1996-08-30 1999-11-17 梅迪亚菲利影音技术公司 Cone reflector/coupler speaker system and method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4876723A (en) * 1988-11-30 1989-10-24 Peter Tsung-Hou Fei Loudspeaker system
CN2316789Y (en) * 1997-12-02 1999-04-28 上海广电设计开发有限公司 Conical sound wave reflecting body leadspeaker box
CN2521861Y (en) * 2001-10-18 2002-11-20 陈坚胜 Bugle loudspeaker
CN101557546B (en) * 2009-04-07 2011-12-28 广州市锐丰音响科技股份有限公司 Acoustically transparent waveguide horn
CN206118020U (en) * 2016-06-29 2017-04-19 广州市嘉声音响设备有限公司 Horn
CN206196025U (en) * 2016-12-01 2017-05-24 石家庄尔通声纹科技有限公司 Directive property audio amplifier of connecting high in clouds
CN107606411A (en) * 2017-10-25 2018-01-19 梁溪区昊星工业设计工作室 A kind of adjustable phototube stent

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3912866A (en) * 1974-01-30 1975-10-14 Showsound Inc Folded bass horn speaker
CN1235688A (en) * 1996-08-30 1999-11-17 梅迪亚菲利影音技术公司 Cone reflector/coupler speaker system and method

Also Published As

Publication number Publication date
CN108668195A (en) 2018-10-16

Similar Documents

Publication Publication Date Title
CN109565628B (en) Compression driver and phasing plug assembly therefor
CN108668195B (en) Directive horn
US20060062402A1 (en) Public address system with adjustable directivity
EP1333698A2 (en) Directional loudspeaker unit
CN201749954U (en) Feedforward parabolic antenna feed system
CN201479331U (en) Coaxial sound source structure loudspeaker with alt and alto units
US2626992A (en) Signal delay device
JP7320804B1 (en) Multi-frequency multi-beam independent electric tilt antenna
CN109066048A (en) A kind of high-gain circular polarized antenna
KR101610224B1 (en) Horn type multi-point excitation loudspeaker case
TWI734382B (en) Annular radiation speaker structure
US10237643B2 (en) Loudspeaker
WO2006096801A2 (en) Reflective loudspeaker array
CN205596271U (en) Sound pick up equipment of outdoor remote use
CN201210393Y (en) Multichannel horn
JP4922575B2 (en) Virtual coaxial type all-horn speaker system
US20170164098A1 (en) Narrow-angle directional microphone
CN209134629U (en) A kind of adjustable loudspeaker box structure of cabinet
CN210899495U (en) Ultrashort horn for sound column
CN204906718U (en) Coaxial -type is package assembly for speaker
CN217183431U (en) Coaxial 360-degree full-directional sound box
CN108656503A (en) A kind of loud speaker plastic cement flanging production and processing decompressor
CN213368037U (en) Directional controllable planar waveguide audio amplifier
CN219432838U (en) Side-scan sonar transducer angle adjusting device
CN203760654U (en) Air allowing strip-line array antenna unit

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