CN216414568U

CN216414568U - Asymmetric directive property bugle

Info

Publication number: CN216414568U
Application number: CN202123111302.0U
Authority: CN
Inventors: 张贵利
Original assignee: Guangzhou Shengjiu Acousto Optic Technology Co ltd
Current assignee: Guangzhou Shengjiu Acousto Optic Technology Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-04-29
Anticipated expiration: 2031-12-13

Abstract

The utility model discloses an asymmetric directional horn, which comprises a bottom plate, wherein a groove is formed in the front end face of the bottom plate, threaded rods are arranged on two sides inside the groove, threaded plates are sleeved on the outer surfaces of the two threaded rods, a base is fixedly installed on the front end face of each threaded plate, a through groove is formed in one side of the outer surface of the base, a pin shaft is arranged on one side inside the through groove, a rotating plate is sleeved in the middle of the pin shaft, two horns are installed on one side of the outer surface of the rotating plate, a driven bevel gear is sleeved in front of the outer surface of the pin shaft, an annular plate is sleeved behind the outer surface of the pin shaft, and a plurality of positioning holes are uniformly formed in the outer surface of the annular plate. The asymmetric horn is arranged, so that interference caused by reflection after sound waves touch a wall is avoided, and the height and the angle of the horn are convenient to adjust, so that the directional coverage angle is adjusted.

Description

Asymmetric directive property bugle

Technical Field

The utility model relates to the technical field of directional horns, in particular to an asymmetric directional horn.

Background

With the rapid development of socio-economy, the horn speaker is composed of a vibration system (a treble head) and a horn. The vibration system is similar to the cone loudspeaker, except that its diaphragm is not a cone but a dome-shaped diaphragm, and the horn is a specially shaped channel mounted in front of the loudspeaker, which can compress and amplify sound waves and also can constrain and change the direction of propagation. The length of the horn, as well as the size of the opening, affects the lowest frequency cut-off point that the horn can produce, closely related to the acoustic characteristics of the horn. Most loudspeaker horn shapes are a conventional bell mouth shape that transitions from small spaces uniformly to large spaces, and act as a directional sound propagation, frequency change, and specific frequency sound pressure change.

However, most of the existing directional horns are symmetrical, sound waves are easy to reflect and consume with the surrounding environment in the transmission process, and a large amount of energy is lost; therefore, the existing requirements are not met, and an asymmetric directional horn is proposed for the requirement.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an asymmetric directional horn, and aims to solve the problems that the existing directional horns proposed in the background art are mostly symmetrical, sound waves are easy to reflect and consume with the surrounding environment in the transmission process, a large amount of energy is lost, the existing horn directional coverage angle is often fixed when products are delivered from factories, the cured structural design causes that the directional coverage angle is often insufficient during field installation and debugging, high-frequency energy cannot be effectively utilized, and the like.

In order to achieve the purpose, the utility model provides the following technical scheme: an asymmetric directive horn comprises a bottom plate, wherein a groove is formed in the front end face of the bottom plate, threaded rods are arranged on two sides inside the groove, threaded plates are sleeved on the outer surfaces of the two threaded rods, a base is fixedly installed on the front end face of each threaded plate, a through groove is formed in one side of the outer surface of the base, a pin shaft is arranged on one side inside the through groove, a rotating plate is sleeved at the middle position of the pin shaft, two horns are installed on one side of the outer surface of the rotating plate, a driven bevel gear is sleeved in front of the outer surface of the pin shaft, an annular plate is sleeved behind the outer surface of the pin shaft, a plurality of positioning holes are uniformly formed in the outer surface of the annular plate, a motor B is fixedly installed in front of the inner wall of the through groove, a rotating shaft is fixedly connected with the output end of the motor B, and a driving bevel gear is sleeved at the other end of the outer surface of the rotating shaft, the driving bevel gear is meshed with the driven bevel gear, an electric push rod is fixedly mounted behind the inner wall of the through groove, an insertion rod is fixedly connected to the other end of the electric push rod, mounting plates are fixedly mounted on the upper portion and the lower portion of the rear portions of the two sides of the outer surface of the bottom plate, threaded holes are formed in the front end face of each mounting plate in a penetrating mode, and motors A are fixedly mounted on the two sides of the upper end face of the bottom plate.

Preferably, the output end of the motor A is fixedly connected with a short shaft, the lower end face of the short shaft is fixedly connected with the upper end face of the threaded rod, and the lower end face of the threaded rod is rotatably connected with the upper end face of the groove through a bearing.

Preferably, the inner ring of the drive bevel gear is fixedly connected with the outer surface of the rotating shaft through welding.

Preferably, the two ends of the pin shaft are rotatably connected with the inner wall of the through groove through bearings.

Preferably, the outer surface of the pin shaft is fixedly connected with the inner ring of the driven bevel gear, the rotating plate and the annular plate through welding.

Preferably, the inserted bar is matched with the positioning hole.

Preferably, the threaded plate is fitted with the threaded rod.

Compared with the prior art, the utility model has the beneficial effects that:

1. the two horns are arranged on one side of the rotating plate and are biased to an open side, so that interference caused by reflection when sound waves touch a wall is avoided;

2. when the directive covering angle needs to be adjusted, the switch of the electric push rod is firstly opened, the electric push rod contracts to drive the inserting rod to retract, the inserting rod is separated from the inner side of the positioning hole, the limit on the annular plate is removed, then the motor B is controlled to operate to drive the rotating shaft to rotate, the rotating shaft rotates to drive the driving bevel gear to rotate, the driven bevel gear is driven to rotate, the pin shaft rotates to drive the rotating plate to rotate, after the horn is adjusted to a proper angle, the switch of the motor B is closed, the switch of the electric push rod is opened, the inserting rod is inserted into one proper positioning hole to fix the annular plate, the pin shaft is prevented from rotating, the horn is more stable, and the utility model is convenient for adjusting the horn angle, thereby adjusting the directional coverage angle.

Drawings

FIG. 1 is a schematic structural view of the present invention as a whole;

FIG. 2 is a front cross-sectional view of the present invention in its entirety;

FIG. 3 is a top cross-sectional view of the present invention as a whole;

FIG. 4 is a partial schematic view of the annular plate of the present invention.

In the figure: 1. a base plate; 2. a threaded rod; 3. a groove; 4. a base; 5. a motor A; 6. mounting a plate; 7. a threaded hole; 8. a horn; 9. a thread plate; 10. a through groove; 11. a rotating plate; 12. a pin shaft; 13. a motor B; 14. a rotating shaft; 15. a drive bevel gear; 16. a driven bevel gear; 17. an electric push rod; 18. an annular plate; 19. positioning holes; 20. and (4) inserting the rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

The motor A5 (model number YS7134), the motor B13 (model number 68KTYZ) and the electric push rod 17 (model number LBP40) can be purchased from the market or customized by a person.

Referring to fig. 1 to 4, an embodiment of the present invention includes: an asymmetric directive horn comprises a bottom plate 1, wherein a groove 3 is formed in the front end face of the bottom plate 1, threaded rods 2 are arranged on two sides inside the groove 3, threaded plates 9 are sleeved on the outer surfaces of the two threaded rods 2, a base 4 is fixedly installed on the front end face of each threaded plate 9, a through groove 10 is formed in one side of the outer surface of each base 4, a pin shaft 12 is arranged on one side inside the through groove 10, a rotating plate 11 is sleeved at the middle position of each pin shaft 12, two horns 8 are installed on one side of the outer surface of the rotating plate 11, a driven bevel gear 16 is sleeved in front of the outer surface of each pin shaft 12, an annular plate 18 is sleeved behind the outer surface of each pin shaft 12, a plurality of positioning holes 19 are uniformly formed in the outer surface of each annular plate 18, a motor B13 is fixedly installed in front of the inner wall of each through groove 10, a rotating shaft 14 is fixedly connected to the output end of a motor B13, and a driving bevel gear 15 is sleeved on the outer surface of the rotating shaft 14, and the driving bevel gear 15 is engaged with the driven bevel gear 16, an electric push rod 17 is fixedly mounted behind the inner wall of the through groove 10, the other end of the electric push rod 17 is fixedly connected with an insert rod 20, mounting plates 6 are fixedly mounted on the upper and lower parts of the rear parts of the two sides of the outer surface of the bottom plate 1, threaded holes 7 are formed in the front end surface of each mounting plate 6 in a penetrating mode, and motors A5 are fixedly mounted on the two sides of the upper end surface of the bottom plate 1.

Further, the output end of the motor A5 is fixedly connected with a short shaft, the lower end face of the short shaft is fixedly connected with the upper end face of the threaded rod 2, and the lower end face of the threaded rod 2 is rotatably connected with the upper end face of the groove 3 through a bearing.

Through adopting above-mentioned technical scheme, motor A5 work can drive the minor axis and rotate to drive threaded rod 2 and rotate, improve threaded rod 2 pivoted stability.

Further, the inner ring of the drive bevel gear 15 is fixedly connected to the outer surface of the rotating shaft 14 by welding.

By adopting the above technical scheme, the stability of the drive bevel gear 15 is improved.

Further, two ends of the pin shaft 12 are rotatably connected with the inner wall of the through groove 10 through bearings.

Through adopting above-mentioned technical scheme, improve round pin axle 12 pivoted stability.

Further, the outer surface of the pin 12 is fixedly connected with the inner ring of the driven bevel gear 16, the rotating plate 11 and the annular plate 18 by welding.

By adopting the technical scheme, the connection stability is improved, and the pin shaft 12 rotates to drive the driven bevel gear 16, the rotating plate 11 and the annular plate 18 to rotate.

Further, the insertion rod 20 is matched with the positioning hole 19.

By adopting the technical scheme, the inserting rod 20 can be inserted into the inner side of the positioning hole 19 to fix the annular plate 18.

Further, the threaded plate 9 is fitted with the threaded rod 2.

Through adopting above-mentioned technical scheme, threaded plate 9 can reciprocate at the surface of threaded rod 2.

The working principle is as follows: when the directional cover angle needs to be adjusted, the switch of the electric push rod 17 is firstly turned on, the electric push rod 17 is contracted to drive the inserting rod 20 to retract, the inserting rod is separated from the inner side of the positioning hole 19 to remove the limit on the annular plate 18, then the motor B13 is controlled, the motor B13 works to drive the rotating shaft 14 to rotate, the pivot 14 rotates and drives drive bevel gear 15 and rotate, thereby it rotates to drive driven bevel gear 16, round pin axle 12 rotates, it is rotatory to drive rotor plate 11, adjust bugle 8 to suitable angle after, close motor B13's switch, open electric putter 17's switch again, inserted bar 20 inserts in one of them suitable locating hole 19, fix annular plate 18, thereby prevent that round pin axle 12 from rotating, it is more stable to make bugle 8, the utility model discloses a be provided with asymmetric bugle 8, it bumps reflection and takes place the interference phenomenon behind the wall to avoid the sound wave, and be convenient for adjust the height and the angle of bugle 8, thereby adjustment directive property covers the angle.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. An asymmetric directional horn, comprising a base plate (1), characterized in that: the front end face of the bottom plate (1) is provided with a groove (3), threaded rods (2) are arranged on two sides in the groove (3), threaded plates (9) are sleeved on the outer surfaces of the two threaded rods (2), a base (4) is fixedly installed on the front end face of each threaded plate (9), a through groove (10) is formed in one side of the outer surface of each base (4), a pin shaft (12) is arranged on one side in the through groove (10), a rotating plate (11) is sleeved in the middle of the pin shaft (12), two horns (8) are installed on one side of the outer surface of the rotating plate (11), a driven bevel gear (16) is sleeved in front of the outer surface of the pin shaft (12), an annular plate (18) is sleeved behind the outer surface of the pin shaft (12), a plurality of positioning holes (19) are uniformly formed in the outer surface of the annular plate (18), and a motor B (13) is fixedly installed in front of the inner wall of the through groove (10), the output fixedly connected with pivot (14) of motor B (13), another pot head of pivot (14) surface is equipped with drive bevel gear (15), just drive bevel gear (15) with driven bevel gear (16) meshing, the rear fixed mounting who leads to groove (10) inner wall has electric putter (17), other end fixedly connected with inserted bar (20) of electric putter (17), equal fixed mounting has mounting panel (6) about bottom plate (1) surface both sides rear, the preceding terminal surface of mounting panel (6) all runs through and is provided with screw hole (7), the both sides fixed mounting of bottom plate (1) up end has motor A (5).

2. An asymmetric directional horn as claimed in claim 1, wherein: the output end of the motor A (5) is fixedly connected with a short shaft, the lower end face of the short shaft is fixedly connected with the upper end face of the threaded rod (2), and the lower end face of the threaded rod (2) is rotatably connected with the upper end face of the groove (3) through a bearing.

3. An asymmetric directional horn as claimed in claim 1, wherein: the inner ring of the driving bevel gear (15) is fixedly connected with the outer surface of the rotating shaft (14) through welding.

4. An asymmetric directional horn as claimed in claim 1, wherein: and the two ends of the pin shaft (12) are rotatably connected with the inner wall of the through groove (10) through bearings.

5. An asymmetric directional horn as claimed in claim 1, wherein: the outer surface of the pin shaft (12) is fixedly connected with the inner ring of the driven bevel gear (16), the rotating plate (11) and the annular plate (18) through welding.

6. An asymmetric directional horn as claimed in claim 1, wherein: the inserting rod (20) is matched and matched with the positioning hole (19).

7. An asymmetric directional horn as claimed in claim 1, wherein: the thread plate (9) is matched with the threaded rod (2).