CN213694111U - Horn device for preventing horn from causing resonance of box body - Google Patents

Abstract

The utility model relates to a loudspeaker technical field, and disclose a loudspeaker device of avoiding loudspeaker to arouse box resonance, including the loudspeaker body, a plurality of connecting blocks of outer wall fixedly connected with of loudspeaker body, the one end fixedly connected with carriage release lever of loudspeaker body is kept away from to the connecting block, the screw cap has been cup jointed in the pole wall activity of carriage release lever, the inner wall threaded connection of screw cap has the external screw thread ring, the inner wall fixedly connected with drum of external screw thread ring, the one end fixedly connected with supporting shoe of connecting block is kept away from to the carriage release lever, rubber piston has been cup jointed to the outer wall of supporting shoe, rubber piston's outer wall and the inner wall swing joint of drum, the outer wall of a plurality of drums has cup jointed annular cover jointly, the annular cover. The utility model discloses can avoid loudspeaker and box to produce resonance, and then improve loudspeaker transcranial Doppler ultrasonic testing's accuracy to and ensured the qualification rate of loudspeaker production.

Description

Horn device for preventing horn from causing resonance of box body

Technical Field

The utility model relates to a loudspeaker technical field especially relates to an avoid loudspeaker to arouse resonant loudspeaker device of box.

Background

The loudspeaker is also called as a loudspeaker, which is a transducer for converting an electric signal into an acoustic signal, the performance of the loudspeaker has a great influence on the sound quality, and the loudspeaker is the weakest component in sound equipment and is the most important component for sound effect. Loudspeakers are of a wide variety and vary widely in price. The audio frequency electric energy makes the cone or diaphragm vibrate and generate resonance with the surrounding air to make sound through electromagnetic, piezoelectric or electrostatic effect.

When the existing horn is used for transcranial Doppler ultrasonic detection, sound emitted by the horn can cause self vibration, the vibration is very easy to cause box resonance when being transmitted to a box, and noise generated by the vibration can interfere images and sound acquired by transcranial Doppler equipment, so that the accuracy of horn detection is seriously influenced, and the qualified rate of horn production is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art loudspeaker when carrying out transcranial Doppler ultrasonic testing, the sound that sends by loudspeaker can arouse self vibration, very easily arouses the box resonance when this kind of vibration transmits to the box, and the noise that the vibration produced can disturb image and the sound of transcranial Doppler equipment collection to seriously influence the accuracy that loudspeaker detected, and influence the problem of loudspeaker production qualification rate, and the loudspeaker device of avoiding loudspeaker to arouse box resonance that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an avoid loudspeaker to arouse resonant horn device of box, includes the loudspeaker body, a plurality of connecting blocks of outer wall fixedly connected with of loudspeaker body, the one end fixedly connected with carriage release lever of loudspeaker body is kept away from to the connecting block, the pole wall activity of carriage release lever has cup jointed the screw cap, the inner wall threaded connection of screw cap has the external screw thread ring, the inner wall fixedly connected with drum of external screw thread ring, the one end fixedly connected with supporting shoe of connecting block is kept away from to the carriage release lever, the fixed rubber piston that has cup jointed of outer wall of supporting shoe, the outer wall of rubber piston and the inner wall swing joint of drum, it is a plurality of the outer wall of drum has cup jointed annular cover jointly, the common fixedly connected with solid fixed ring in one side that the drum was kept away from to the annular cover, the inlet port.

Preferably, the rod wall of the moving rod is fixedly sleeved with a rubber sleeve, and the outer wall of the threaded cover is provided with a circular through hole matched with the rubber sleeve.

Preferably, the outer wall of the cylinder is fixedly sleeved with a baffle ring, and one side of the baffle ring close to the threaded cover is fixedly connected with a rubber anti-slip ring.

Preferably, one side of the fixing ring, which is far away from the annular cover, is fixedly connected with a plurality of rubber buffer blocks.

Preferably, the outer wall of the annular cover is provided with a fixing round hole, and the hole wall of the fixing round hole is fixedly connected with an inflating nozzle.

Preferably, the side wall of the threaded cover is provided with anti-skid threads.

Compared with the prior art, the utility model provides an avoid loudspeaker to arouse resonant loudspeaker device of box possesses following beneficial effect:

this avoid loudspeaker to arouse loudspeaker device of box resonance, through being provided with rubber piston, drum and carriage release lever, when loudspeaker carry out through cranium Doppler ultrasonic testing sound production and produce vibration, at first aerify in to annular cover through the charging connector, make drum and annular cover have great pressure, later the vibration of loudspeaker body passes through connecting block and carriage release lever promotion rubber piston and removes in the drum, and rubber piston can cushion the vibration that loudspeaker body produced because the factor of pressure resistance in the drum, avoid this vibration to arouse the box resonance on transmitting the box, can avoid resonance to produce noise influence loudspeaker through cranium Doppler ultrasonic testing simultaneously, this mechanism can avoid loudspeaker and box to produce resonance, and then improved loudspeaker through cranium Doppler ultrasonic testing's accuracy, and ensured the qualification rate of loudspeaker production.

The part that does not relate to in the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can avoid loudspeaker and box to produce resonance, and then improved loudspeaker transcranial Doppler ultrasonic testing's accuracy to and ensured the qualification rate of loudspeaker production.

Drawings

Fig. 1 is a schematic structural diagram of a speaker device for preventing a speaker from causing resonance of a cabinet according to the present invention;

fig. 2 is a schematic structural diagram of a part a of the speaker device for avoiding the resonance of the box body caused by the speaker.

In the figure: the device comprises a horn body 1, a connecting block 2, a moving rod 3, a thread cover 4, an external thread ring 5, a cylinder 6, a supporting block 7, a rubber piston 8, an annular cover 9, a fixing ring 10, an air inlet 11, a fixing through hole 12, a rubber sleeve 13, a retaining ring 14, a rubber anti-slip ring 15, a rubber buffer block 16 and an inflating nozzle 17.

Detailed Description

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

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like 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, and 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 therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, a avoid loudspeaker to arouse resonant horn device of box, including loudspeaker body 1, loudspeaker body 1's a plurality of connecting blocks of outer wall fixedly connected with 2, loudspeaker body 1's one end fixedly connected with carriage release lever 3 is kept away from to connecting block 2, screw cap 4 has been cup jointed in the pole wall activity of carriage release lever 3, the inner wall threaded connection of screw cap 4 has external screw thread ring 5, the inner wall fixedly connected with drum 6 of external screw thread ring 5, connecting block 2's one end fixedly connected with supporting shoe 7 is kept away from to carriage release lever 3, rubber piston 8 has been cup jointed to the outer wall of supporting shoe 7, rubber piston 8's outer wall and drum 6's inner wall swing joint, annular cover 9 has been cup jointed jointly to the outer wall of a plurality of drums 6, the common fixedly connected with solid fixed ring 10 in one side that drum 6 was kept away from to annular cover 9.

The fixed rubber sleeve 13 that has cup jointed of pole wall of carriage release lever 3, the circular through-hole with rubber sleeve 13 matched with is seted up to the outer wall of screw cap 4, rubber sleeve 13 can avoid when the carriage release lever 3 removes and produce the dry loudspeaker of noise and detect between screw cap 4, has ensured the accuracy that loudspeaker detected.

The outer wall of the cylinder 6 is fixedly sleeved with a baffle ring 14, one side of the baffle ring 14 close to the threaded cover 4 is fixedly connected with a rubber anti-slip ring 15, and the rubber anti-slip ring 15 can guarantee the stability of connection of the threaded cover 4 by utilizing friction force.

One side of the fixing ring 10 far away from the annular cover 9 is fixedly connected with a plurality of rubber buffer blocks 16, and the rubber buffer blocks 16 can further buffer the vibration drive of the horn device.

The outer wall of the annular cover 9 is provided with a fixing round hole, the hole wall of the fixing round hole is fixedly connected with an inflating nozzle 17, and the annular cover 9 is inflated through the inflating nozzle 17, so that the cylinder 6 and the annular cover 9 have large pressure intensity.

The lateral wall of the threaded cap 4 is provided with anti-slip threads, and the anti-slip threads can facilitate the rotation of the threaded cap 4.

In the utility model, when the loudspeaker produces vibration by transcranial Doppler ultrasonic detection sound production, the threaded cover 4 is firstly connected with the external thread ring 5, the rubber piston 8 is plugged into the cylinder 6, then the annular cover 9 is inflated through the inflation nozzle 17, so that the cylinder 6 and the annular cover 9 have higher pressure, then the vibration of the horn body 1 pushes the rubber piston 8 to move in the cylinder 6 through the connecting block 2 and the moving rod 3, the rubber piston 8 can buffer the vibration generated by the horn body 1 in the cylinder 6 due to the pressure resistance, so as to avoid the vibration from being transmitted to the box body to cause the resonance of the box body and simultaneously avoid the influence of the noise generated by the resonance on the transcranial Doppler ultrasonic detection of the horn, the mechanism can avoid the resonance between the horn and the box body, thereby improving the accuracy of the transcranial Doppler ultrasonic detection of the horn and ensuring the qualified rate of horn production.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The horn device for avoiding the horn to cause the box body resonance comprises a horn body (1) and is characterized in that a plurality of connecting blocks (2) are fixedly connected to the outer wall of the horn body (1), a moving rod (3) is fixedly connected to one end, far away from the horn body (1), of each connecting block (2), a threaded cover (4) is movably sleeved on the rod wall of each moving rod (3), an external thread ring (5) is connected to the inner wall of each threaded cover (4) in a threaded mode, a cylinder (6) is fixedly connected to the inner wall of each external thread ring (5), a supporting block (7) is fixedly connected to one end, far away from the connecting blocks (2), of each supporting block (7), a rubber piston (8) is fixedly sleeved on the outer wall of each supporting block (7), the outer wall of each rubber piston (8) is movably connected with the inner wall of each cylinder (6), and an annular cover (9) is sleeved on, the common fixed ring (10) of one side that the drum (6) was kept away from in annular cover (9), inlet port (11) have been seted up to the bottom of drum (6), a plurality of fixed through hole (12) have been seted up to the outer wall of fixed ring (10).

2. The horn device for avoiding the resonance of the box body caused by the horn according to claim 1, wherein the rod wall of the moving rod (3) is fixedly sleeved with a rubber sleeve (13), and the outer wall of the threaded cover (4) is provided with a circular through hole matched with the rubber sleeve (13).

3. The horn device for avoiding the resonance of the box body caused by the horn as claimed in claim 1, wherein a baffle ring (14) is fixedly sleeved on the outer wall of the cylinder (6), and a rubber anti-slip ring (15) is fixedly connected to one side of the baffle ring (14) close to the threaded cover (4).

4. A horn device for avoiding the resonance of a horn caused by a tank according to claim 1, wherein a plurality of rubber buffer blocks (16) are fixedly connected to one side of the fixing ring (10) far away from the ring-shaped cover (9).

5. The horn device for avoiding the resonance of the box body caused by the horn as claimed in claim 1, wherein the outer wall of the annular cover (9) is provided with a fixing circular hole, and the hole wall of the fixing circular hole is fixedly connected with an inflating nozzle (17).

6. The horn device for avoiding the resonance of the box body caused by the horn as claimed in claim 1, wherein the side wall of the screw cap (4) is provided with anti-slip threads.

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