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37results about How to "Affect sound quality" patented technology

Sound film molding pressing die for loudspeaker

InactiveCN102014334AEliminate Causes of Press WrinklingReduce generationShaping toolsElectrical transducersEngineeringLoudspeaker
The invention provides a sound film molding pressing die for a loudspeaker, consisting of an upper die part and a lower die part. The lower die part consists of a lower die head, a movable pressing sleeve, a reset spring and a lower template, wherein the lower die head comprises a molding die body and a bearing column; the molding die body consists of a lower molding surface and a lower plunger ring; the movable pressing sleeve is sleeved on the molding die body and the bearing column; the reset spring is sleeved on the bearing column, and is positioned between the movable pressing sleeve and the lower template; and an upper die head is coaxial with the lower die head. Because the movable pressing sleeve and the reset spring are additionally arranged in the lower die head part, when the sound film is pressed, grey cloth to be molded is firstly compacted by an upper plunger ring and the movable pressing sleeve so as to ensure that the peripheral cloth is stressed uniformly and then is subject to drawing and compression moulding. Therefore, the folding phenomenon on the periphery of a sound film finished product can be eliminated, the sound film molding pressing die can be operated only by one person, the finished product can be automatically demoulded, and the operation is safe, convenient, and labor-saving.
Owner:江苏东禾电声配件有限公司 +1

Press-forming mould of loudspeaker elastic wave

InactiveCN102088656AEliminate forceEliminate Causes of Press WrinklingElectrical transducersLoudspeakerMaterials science
The invention provides a press-forming mould of a loudspeaker elastic wave, comprising an upper mould component and a lower mould component. The lower mould component comprises a lower mould head, a movable press sleeve, return springs and a lower template, wherein the lower mould head comprises a moulding body and a bearing column; the moulding body comprises a lower moulding surface and a lower press ring; the movable press sleeve is sleeved on the moulding body and the bearing column; the return springs are sleeved on the bearing column and positioned between the movable press sleeve and the lower template; and the upper mould head and the lower mould head are coaxial. The movable press sleeve and the return springs are added to the lower mould head so that, in the operation of pressing an elastic wave, the upper press ring and the movable press sleeve first press cloth blanks to be moulded tight and ensure that peripheral cloth receives even force; and then the cloth blanks are deeply drawn and pressed to form a finished product so that the folds of the peripheral parts of the finished product of elastic wave can be eliminated. The press-forming mould of the invention can be operated by only one person; and moreover, the finished product can be automatically demoulded, which provides safe, convenient and labor-saving operation.
Owner:江苏东禾电声配件有限公司 +1

Forming and pressing die for loudspeaker drum paper

InactiveCN102088655AEliminate Causes of Press WrinklingReduce generationShaping toolsElectrical transducersEngineeringLoudspeaker
The invention relates to a forming and pressing die for loudspeaker drum paper. The forming and pressing die for the loudspeaker drum paper consists of an upper die part and a lower die part, wherein the lower die part consists of a lower die head, a moveable pressing sleeve, a return spring and a lower template; the lower die head comprises a forming die body and a pressure-bearing column; the forming die body consists of a lower forming surface and a lower pressing ring; the moveable pressing sleeve is sleeved on the forming die body and the pressure-bearing column; the return spring is sleeved on the pressure-bearing column and is positioned between the moveable pressing sleeve and the lower template; and the upper die head is coaxial with the lower die head. The moveable pressing sleeve and the return spring are arranged on the lower die head; when the drum paper is pressed, cloth blank to be formed is pressed tightly by the upper pressing ring and the moveable pressing sleeve, and peripheral cloth is stressed uniformly and then is pulled deeply, pressed and formed, so that the folding phenomenon of the periphery of the drum paper finished product is eliminated, the finished product can be automatically demoulded by one person, and the forming and pressing die for the loudspeaker drum paper is safe and convenient to operate and labor-saving.
Owner:江苏东禾电声配件有限公司 +1

Allow for piano

The invention relates to the technical field of pianos, and particularly relates to an allow for a piano. The allow comprises a back, an iron frame, soundboard bridges and a string, wherein handles are arranged at inner edges of two sides of the back, at least two uprights are arranged on the back, an upper beam and a lower beam are respectively fixedly arranged at two ends each of the uprights, the back is further provided with an upper back panel and a lower back panel; a pin block is arranged on the back and is used for supporting a tuning pin, the iron frame is arranged at the upper side of the pin block, and is fixedly connected onto the pin block, a soundboard is arranged between the back and the pin block, the uprights are positioned at the lower side of the soundboard, the bridges are fixedly arranged at the upper side of the soundboard and comprise tenor and treble bridges and bass bridges, a hitch pin is arranged on the iron frame, and bridge pins are arranged on the tenor and treble bridges and the bass bridges; a soundboard liner is arranged between the soundboard and the back; the string is tired and hung on the hitch pin, and wound on the tuning pin, a pressure bar is arranged at one side of the hitch pin, and is fixedly arranged on the iron frame, and a tuning pin bushing is arranged between the pin block and the tuning pin. The allow can be used for preventing the tone quality from being influenced by excessive wear of the tuning pin.
Owner:苏州公爵琴业有限公司

Buzzer structure convenient for installation and having combo audio

The invention discloses a buzzer structure convenient for installation and having a combo audio. The buzzer structure comprises a housing, a buzzer and a resonant chamber. A piezoelectric buzzer is installed in the housing. The resonant chamber is arranged at the top end of the piezoelectric buzzer. An outer ring is installed at the bottom of the housing. The invention is scientific and reasonablein structure, and safe and convenient in use; and an outer ring is arranged for the invention. Through the effects of a sliding slot, a groove, a sliding block and a fixing block, the sliding block slides and the position of the fixing block is adjusted according to an actual situation of the installing position. By matching the effects of a connecting screw rod and a locking nut, the position thereof is fixed, such that the buzzer is better installed and fixed. Through the effect of a movable shaft, the fixing block is folded and hidden conveniently according to an actual requirement, thereby achieving a simple operation and a convenient installation. Through the effects of a through hole, an inner ring and a bearing hole as well as an extrusion bump, the bearing hole at one side of theinner ring is made overlapped with the through hole, thereby circulating air at the bottom of the buzzer and improving heat dissipation effects of the buzzer.
Owner:新沂市承翔电子有限公司

A piano notation system

The invention belongs to the technical field of musical instruments, and relates to a piano score flipping system. The system solves the problems that an existing music turning device affects the piano tone quality, and damages a music score. The piano score flipping system comprises a music stand, a paper sucking unit and a paper pushing unit; the music stand comprises a bottom plate and a panel,the paper sucking unit comprises a sleeve and a piston, the sleeve is arranged on the panel, the sleeve is provided with a vent hole, the inner end of the piston is inserted into the sleeve, the outer end of the piston is connected with a paper sucking pull cable, a paper sucking pedal capable of driving the paper sucking pull cable to move is arranged at the bottom of a piano, the paper pushingunit comprises a paper pushing pedal and a paper pushing pull cable, the paper pushing pedal is arranged at the bottom of the piano, the lower end of the paper pushing pull cable is connected with thepaper pushing pedal, a swing rod is connected to the upper end of the paper pushing pull cable, the upper end of the swing rod is hinged to the panel, moreover, the reset mechanism is arranged between the swing rod and the panel, and the lower end of the swing rod can swing to the position above the music score on the panel. The piano score flipping system has a small influence on the piano tonequality and does not damage the music score.
Owner:HUNAN CITY UNIV

Music teaching appliance safe storage system

The invention relates to a musical instrument portable storage system, which includes a mounting base. The two sides of the upper portion of the mounting base are provided with a left bearing seat anda right bearing seat, and a rotating power mechanism is arranged between the left bearing seat and the right bearing seat; the upper portions of the left bearing seat and the right bearing seat are provided with a left lifting power cavity and a right lifting power cavity correspondingly, and the upper portions of the left lifting power cavity and right lifting power cavity are provided with a storage cavity; a left placement cavity and a right placement cavity are formed in the storage cavity, a left air inlet pipe and a right air inlet pipe are arranged on the outer sides of the left placement cavity and right placement cavity correspondingly, and an intermediate air inlet pipe is arranged between the left placement cavity and right placement cavity; and the lower portion of the storagecavity is provided with an air supply pipe, and a water storage pipe is arranged in the air supply pipe. The musical instrument portable storage system can effectively store for music equipment, humidification treatment and drying treatment as required are carried out advantageously, and the music equipment is maintained in the environment with the appropriate temperature and humidity.
Owner:四川省华蓥市第一中学

A buzzer structure with composite audio for easy installation

The invention discloses a buzzer structure with composite audio for easy installation, which includes a shell, a piezoelectric buzzer and a resonance chamber. A piezoelectric buzzer is installed inside the shell, and the top of the piezoelectric buzzer is A resonance chamber is provided, and an outer ring is installed at the bottom of the shell. The structure of the present invention is scientific and reasonable, and it is safe and convenient to use. The outer ring is provided, and through the functions of chute, groove, slider and fixed block, it is convenient to According to the situation, slide the slider, adjust the position of the fixed block, and cooperate with the function of the connecting screw and the lock nut to fix its position, so that the buzzer can be better installed and fixed. Through the function of the movable shaft, it is convenient to adjust according to the actual needs. The fixed block is folded and hidden, which is easy to operate and easy to install. Through the function of the through hole, the inner ring and the receiving hole, the receiving hole on the side of the inner ring is overlapped with the through hole by squeezing the bump, so that the air at the bottom of the buzzer Circulation, improve the heat dissipation effect of the buzzer.
Owner:新沂市承翔电子有限公司

Magnetic levitation charging voice box

The invention discloses a magnetic levitation charging voice box, and relates to the technical field of the magnetic levitation charging voice box. The magnetic levitation charging voice box comprisesa base, a sound body is arranged at an upper part of the base, a dust removal mechanism is arranged in the sound body, and an adjusting mechanism is arranged in the base. Through the magnetic levitation charging voice box, use personnel twists a rotating rod when removing the dust, thereby enabling the rotating rod to drive a magnetic plate to rotate, the magnetic force of the magnetic plate is used for stretching a first telescopic spring and then getting rid of the first telescopic spring, the resilience force of the first telescopic spring is used for driving a movable plate and a supportplate to vibrate, the support plate drives adsorption cotton to vibrate to shake off the dust on an outer surface of the adsorption cotton; and meanwhile, the vibration is utilized to enable the duston the outer surface of a circuit board in the voice box to produce resonance; a fan works in the end, the dust in a circuit board installation cabin is sucked out through a pass pipe and a conduit, the dust is discharged from a dust discharge pipe; the entire can realize the automatic cleaning on the dust in the voice box, and the condition that the dust vibrates along with the sound to influencethe tone quality of the whole voice box due to dust accumulation is avoided.
Owner:麦科多电子(南通)有限公司

KTV (Karaoke Television) multifunctional stereo sound box and use method thereof

The invention provides a KTV multifunctional stereo sound box and the use method thereof. The KTV multifunctional stereo sound box comprises a sound box shell, a first cavity and a second cavity with a rightward opening are formed in the sound box shell, a vibration hole penetrating into the second cavity rightwards is formed in the right side face of the first cavity, a drum membrane is arranged on the annular face of the right side of the vibration hole, and the drum membrane is arranged on the annular face of the right side of the vibration hole. Alcohol is stored in the sound box, the tympanic membrane cleaning device capable of cleaning the tympanic membrane by using the alcohol is arranged in the sound box, the tympanic membrane is prevented from being contaminated by too much dust to affect the tone quality of the sound box, and the tympanic membrane cleaning device is located on the lower side of the tympanic membrane when not working, so that sound transmission is not affected; the storage cavity for containing the microphone is formed in the microphone cleaning device, and after the microphone cleaning device is used, alcohol can be used for conducting ultrasonic cleaning on the microphone; according to the microphone, saliva stained on the microphone can be extracted, and the detector capable of detecting the saliva is arranged in the microphone, so that the behavior that someone inhales drugs in the KTV is stopped.
Owner:厦门桦璃沐贸易有限公司

Ceiling intelligent sound equipment host convenient to disassemble

The invention relates to the field of sound equipment, in particular to a ceiling intelligent sound equipment host convenient to disassemble, which comprises a machine body and a mounting base used for being mounted on a wall. The machine body is located on the mounting base, a groove is formed in the mounting base, the machine body is located in the groove, and a telescopic assembly in a retraction state is connected between the machine body and the top wall of the groove. A timer, a power mechanism and a controller are arranged on the mounting base, the timer is used for timing the cleaning duration of the sound box, the timer is used for sending a cleaning signal to the controller after timing is completed, the controller controls the power mechanism to be started according to the cleaning signal, and the power mechanism drives the telescopic assembly to extend downwards. The sound equipment host is cleaned by lowering the position of the machine body, the sound effect of the sound box can be guaranteed by regularly cleaning the machine body, bolts of the mounting base do not need to be independently detached, the problem that mounting holes cannot be mounted again or mounting positions cannot be replaced after being enlarged is solved, and use is more convenient.
Owner:NINGBO HOPE INTELLIGENT TECH

A magnetic levitation rechargeable speaker

The invention discloses a magnetic levitation charging voice box, and relates to the technical field of the magnetic levitation charging voice box. The magnetic levitation charging voice box comprisesa base, a sound body is arranged at an upper part of the base, a dust removal mechanism is arranged in the sound body, and an adjusting mechanism is arranged in the base. Through the magnetic levitation charging voice box, use personnel twists a rotating rod when removing the dust, thereby enabling the rotating rod to drive a magnetic plate to rotate, the magnetic force of the magnetic plate is used for stretching a first telescopic spring and then getting rid of the first telescopic spring, the resilience force of the first telescopic spring is used for driving a movable plate and a supportplate to vibrate, the support plate drives adsorption cotton to vibrate to shake off the dust on an outer surface of the adsorption cotton; and meanwhile, the vibration is utilized to enable the duston the outer surface of a circuit board in the voice box to produce resonance; a fan works in the end, the dust in a circuit board installation cabin is sucked out through a pass pipe and a conduit, the dust is discharged from a dust discharge pipe; the entire can realize the automatic cleaning on the dust in the voice box, and the condition that the dust vibrates along with the sound to influencethe tone quality of the whole voice box due to dust accumulation is avoided.
Owner:麦科多电子(南通)有限公司

Loudspeaker heat dissipation protection equipment

The invention discloses loudspeaker heat dissipation protection equipment. The loudspeaker heat dissipation protection equipment comprises a machine body, wherein a working cavity with an upward opening is formed in the upper end face of the machine body in a communicating mode, a magnet protection cover extending upwards is fixedly arranged on the lower wall face of the working cavity, and a closing plate is fixedly arranged on the upper end face of the magnet protection cover. According to the invention, heat dissipation processing is carried out on the loudspeaker which operates at high power for a long time, the sound quality and the service life of the loudspeaker can be effectively prevented from being influenced by heat accumulation of the voice coil during operation, and external dust is effectively prevented from entering the loudspeaker by utilizing a mode of combining air cooling and water cooling. Meanwhile, the device can reduce the damage to equipment caused by water leakage, effectively avoids the breakage of the electrodes caused by the up-and-down high-frequency vibration of the voice coil through the isolation protection of the coil electrodes and provides a goodenvironment for the operation of the loudspeaker. The device also can fix the lateral position of the voice coil, and therefore, the influence of high-frequency vibration on the position of the voicecoil can be avoided.
Owner:深圳市天同玩具有限公司

Central speaker mesh assembly

The invention discloses a central speaker mesh assembly which comprises an outer shell, a top frame and a mesh core body, a supporting frame is annularly welded and fixed to the edge of the top of the outer shell, the top frame is arranged above the supporting frame, a groove is formed in the center of the interior of the top frame, the mesh core body is detachably installed in the groove, a supporting cylinder is fixed to the top of the top frame, and the supporting cylinder is fixed to the top of the top frame. A dustproof cover is fixedly welded to the top of the supporting cylinder, through holes are evenly formed in the outer side wall of the supporting cylinder, and the groove communicates with the supporting cylinder through a sound guide hole. The supporting cylinder with the through holes evenly formed in the outer side wall is fixed to the top of the top frame, and the dustproof cover is fixed to the top of the supporting cylinder, so that sound is guided out from the side face of the supporting cylinder, and dust accumulation on the top is avoided; meanwhile, the supporting cylinder is communicated with the groove through the sound guide hole, and a net core body composed of a first metal wire net, a dustproof filtering layer and a second metal wire net is arranged in the matched groove, so that dust can be effectively prevented.
Owner:倪清

Wooden guitar

The present invention belongs to the music instrument device field, and concretely relates to a wooden guitar. The wooden guitar comprises a guitar body and a guitar head located at the top of the guitar body, the top of the guitar head and the lower portion of the guitar body are provided with s string rack configured to install strings, a cavity is arranged in the guitar body, bottom corners of the guitar body are respectively hinged with two skew plates capable of folding through an unidirectional ratchet wheel, the external portions of the skew plates are spliced with rubber sleeves configured to seal the skew plates, balls and a proper amount of lime powder are put in the rubber sleeves, the particle size of the lime powder is smaller than 0.01 mm, the surfaces of the balls are fixedly connected with two strings respectively connected with the two skew plates, and the internal surfaces of the skew plates are provided with thrust blocks configured to prevent the skew plates from overturning outwards; and the bottom surface of the guitar body is provided with a slag-drip opening, and the bottom surface of the guitar body is hinged with a slag-drip door capable of sealing the slag-drip opening. The wooden guitar can ensure the tone quality of the wooden guitar so as to avoid steam accumulation in the cavity of the guitar and prevent the wood from being wetted by steam.
Owner:贵州融合音源乐器有限公司

Shock-proof foot nail

The invention provides a shock-proof foot nail. The shock-proof foot nail comprises a first base, a second base, an elastic assembly, a shock transmission bolt and supporting legs. The elastic assembly is arranged in the first base and / or the second base, the upper end of the shock transmission bolt is arranged on the first base, the lower end of the shock transmission bolt is arranged on the second base, and the shock transmission bolt abuts against the elastic assembly. And the supporting legs are arranged below the second base. On one hand, the phonograph makes contact with the placement plane through the supporting legs on the shock absorption foot nails, and external vibration can be efficiently absorbed through the elastic assemblies and the shock transmission bolts; and on the otherhand, the first base, the second base, the elastic assembly, the shock transmission bolt, the supporting leg and other assemblies in the shock absorption foot nail are independent of one another, andthe isolation effect on external shock can be achieved. After the shock-proof foot nails are arranged below the phonograph, the influence of external vibration on the tone quality of the phonograph can be effectively prevented, and the phonograph is helpful to show better tone quality.
Owner:SHENZHEN JIAYINKING TECH HLDG COMPANY
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